Fresh air conditioning module, whole house fresh air system, five-constant system and residential energy center

Abstract

The invention discloses a fresh air conditioner module, a whole house fresh air system, a five-constant system and a residence energy center. A return air flow channel is arranged to be a first return air inlet communicated with an air inlet flow channel and a second return air inlet communicated with an exhaust flow channel, and the air inlet flow channel is provided with a fresh air input port; the switching between fresh air replacement and air conditioner internal circulation can be realized by matching a fresh air power point position, an exhaust air power point position, a fresh air door and a mode switching air door; a first heat exchange module and a second heat exchange module are further arranged, the air inlet flow channel, the first flow channel, the middle flow channel and the second flow channel are arranged in a single communication mode, and the second heat exchange module is located between the output end of the first flow channel and the input end of the second flow channel. Fresh air and / or return air firstly enters the first flow channel to conduct first heat exchange with airflow in the second flow channel, then conducts second heat exchange with the second heat exchange module, conducts third heat exchange with fresh air and / or return air subsequently entering the first flow channel in the second flow channel, and then is discharged. The problems of constant-temperature dehumidification, deep dehumidification and the like in summer in the rainy season in the south are solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of fresh air technology, and particularly relates to a fresh air conditioner module, a whole-house fresh air system, a five-constant system and a residential energy center. BACKGROUND

[0002] In the field of building ventilation, the fresh air module with a full-heat exchanger as the core from Europe has become the mainstream technology and a universal solution for recovering cold (in summer) and heat (in winter) between the inlet and outlet of the building space.

[0003] However, with the popular application of the heat and moisture exchange film and the fresh air module with a full-heat exchanger, a series of serious problems of the technology have been gradually exposed.

[0004] The HVAC technology practice in the past two decades shows that the fresh air module with a full-heat exchanger has a complex structure, low heat exchange intensity, low dehumidification intensity, serious pollution and difficulty in cleaning, and is prone to freeze damage in the heavy load heat exchange stage in the severe cold season.

[0005] It has become an important and urgent task for the building HVAC industry to develop a fresh air module with constant temperature dehumidification and deep dehumidification function, a whole-house fresh air system with single-pipe two-way flow characteristics, a whole-house five-constant system, and a residential energy center integrated with fresh air conditioner heat pump and hot water functions. SUMMARY

[0006] The technical problem to be solved by the present application is to provide a fresh air conditioner module, a whole-house fresh air system, a five-constant system and a residential energy center.

[0007] To solve the above problems, the technical scheme of the present application is as follows: The fresh air conditioner module of the present application comprises: an inlet flow channel comprising a fresh air input port and a first return air port; an exhaust flow channel comprising a second return air port; a return air flow channel, the output ends of the return air flow channel being respectively connected to the first return air port and the second return air port; a first heat exchange module comprising a first flow channel and a second flow channel, fresh air flowing through the first flow channel and fresh air flowing through the second flow channel being exchanged with each other, the input end of the first flow channel being connected to the output end of the inlet flow channel; an intermediate flow channel configured to connect the output end of the first flow channel and the input end of the second flow channel; wherein the fresh air input port and / or the first return air port, the inlet flow channel, the first flow channel, the intermediate flow channel and the second flow channel sequentially cooperate to form a single-communicating air supply flow channel; the return air flow channel, the second return air port and the exhaust flow channel cooperate to form a single-communicating air outlet flow channel; a second heat exchange module arranged at an input end of the second flow channel, or arranged at the intermediate flow channel, or arranged at an output end of the first flow channel, the second heat exchange module configured to receive an external heat exchange medium and exchange heat with the fresh air flowing therethrough; a fresh air power point installed in the air supply flow channel; an exhaust air power point installed in the air exhaust flow channel; a fresh air damper installed at the fresh air input port, configured to open or close the fresh air input port; a mode switching damper installed at an output end of the return air flow channel, configured to open only the first return air port or only the second return air port or simultaneously open at least part of the first return air port and at least part of the second return air port.

[0008] In the fresh air air conditioner module of the present application, the first return air port and the second return air port are arranged side by side, and the mode switching damper is a sliding vane type electric damper, and the sliding vane of the sliding vane type electric damper slides between the first return air port and the second return air port.

[0009] The fresh air air conditioner module of the present application further comprises a third heat exchange module arranged at an output end of the second flow channel, the third heat exchange module configured to receive an external heat exchange medium and exchange heat with the fresh air flowing therethrough or not exchange heat with the fresh air flowing therethrough.

[0010] In the fresh air air conditioner module of the present application, the second heat exchange module is a first finned tube heat exchanger, and the third heat exchange module is a second finned tube heat exchanger; the first finned tube heat exchanger and the second finned tube heat exchanger are respectively connected with an electronic expansion valve, a lotus head and a collecting and distributing pipe to form independent refrigeration terminals.

[0011] The fresh air air conditioner module of the present application further comprises a fresh air shell, the fresh air shell having a fresh air chamber, the exhaust air flow channel and the return air flow channel formed therein, and the first heat exchange module being installed in the fresh air chamber and cooperating to form the intermediate flow channel and the air inlet flow channel in the fresh air chamber.

[0012] In the fresh air air conditioner module of the present application, the fresh air shell further has an air outlet cavity communicating with the output end of the second flow channel, and the fresh air power point is installed in the air outlet cavity.

[0013] In the fresh air air conditioner module of the present application, the first heat exchange module has a shape of a parallelogram, and the air inlet flow channel and the intermediate flow channel are wedge-shaped flow channels with cross-sectional areas gradually increasing in the direction of air flow.

[0014] The fresh air air conditioner module of the present application further comprises a humidifying unit, a humidifying end of the humidifying unit being arranged at the output end of the second flow channel.

[0015] The fresh air conditioning module of the application further comprises a fresh air filtering unit installed at the fresh air inlet.

[0016] The fresh air conditioning module of the application, the first heat exchange module is a cross-flow heat exchanger.

[0017] A whole-house fresh air system for a room group, the room group comprising a plurality of rooms and a common space communicating with each of the rooms, the whole-house fresh air system comprising: A single-pipe dual-flow whole-house fresh air system, the single-pipe dual-flow whole-house fresh air system comprising the fresh air conditioning module of any one of the preceding embodiments; the single-pipe dual-flow whole-house fresh air system being configured to directly or indirectly introduce ambient fresh air into the common space at positive pressure through the fresh air power point, and being configured to extract room contaminated air through a single-pipe piping system at one or more of the rooms to form a room contaminated air return end and cooperate with an exhaust air power point. A room relay passage corresponding to each of the room contaminated air return ends, the room relay passage being configured to communicate the common space and the room.

[0018] The whole-house fresh air system of the application, the single-pipe dual-flow whole-house fresh air system comprising the single-pipe piping system, the fresh air module and the exhaust air module; the single-pipe piping system comprising a total exhaust air pipe and a plurality of room exhaust air pipes; The fresh air module is arranged on the outer wall of the common space and communicates the common space with the environment, or is arranged on the outer wall of one of the rooms and communicates the common space with the environment through a section of air supply pipe, the fresh air module being configured to introduce ambient fresh air at positive pressure to establish a fresh air supply state in the common space; the exhaust air module is connected to each of the room exhaust air pipes through the total exhaust air pipe, and the exhaust air module is provided with the exhaust air power point.

[0019] The whole-house fresh air system of the application, the room relay passage being a vertical air duct, the vertical air duct being configured to have a first air port facing the common space and a second air port facing the room, the first air port and the second air port being arranged away from each other in the vertical direction and being connected by an air duct flow channel formed by the inner wall of the vertical air duct, the air duct flow channel being used to eliminate sound wave transmission between the common space and the room and guide or drive the fresh air flow to flow vertically to establish three-dimensional flow of the fresh air flow.

[0020] Alternatively, the room relay passage is a door, the door being a hollow structure and being configured to have a first air port facing the common space and a second air port facing the room, the first air port and the second air port being arranged away from each other in the vertical direction or the horizontal direction and being connected by an air duct flow channel formed by the inner wall of the door, the air duct flow channel being used to eliminate sound wave transmission between the common space and the room and guide or drive the fresh air flow to flow.

[0021] The whole-house fresh air system of the application, the air duct flow passage is provided with a relay power point, the relay power point is configured to extract public space fresh air at the first air outlet and output positive pressure to the room through the room relay channel.

[0022] The whole-house fresh air system of the application, the vertical air duct is provided with two sound units arranged at intervals in the vertical direction, and the two sound units cooperate with the sound unit at the room dirty air return end to form a stereo sound combination of the room.

[0023] The whole-house fresh air system of the application, for a room group, the room group includes multiple rooms and a public space communicating with each room, and the whole-house fresh air system includes: The single-pipe two-way flow whole-house fresh air system includes the fresh air conditioner module of any one of the above; the single-pipe two-way flow whole-house fresh air system is configured to build a room fresh air supply end in one or more rooms through a single-pipe piping system and cooperate with the fresh air power point to introduce environmental fresh air, and is configured to directly or indirectly exhaust dirty air from the public space through the exhaust air power point; The room relay channel corresponds to the room fresh air supply end one by one, and the room relay channel is configured to communicate the public space and the room.

[0024] The whole-house fresh air system of the application, the single-pipe two-way flow whole-house fresh air system includes the single-pipe piping system, the fresh air module and the exhaust air module; the single-pipe piping system includes a total fresh air pipe and a plurality of room fresh air pipes; The exhaust air module is arranged on the outer wall of the public space and communicates the public space with the environment, or is arranged on the outer wall of a room and communicates the public space with the environment through an exhaust air pipe, and the exhaust air module is configured to exhaust dirty air to establish a negative pressure extraction state in the public space; the exhaust air module is provided with the exhaust air power point; The fresh air module is connected to each room fresh air pipe through the total fresh air pipe.

[0025] The five-constant system of the application, for a room group, the room group includes multiple rooms and a public space communicating with each room, and the five-constant system includes the whole-house fresh air system of any one of the above, and the total fresh air module of the whole-house fresh air system is configured to regulate the freshness, cleanliness and temperature and humidity of the fresh air sent into the public space; Or, including the whole-house fresh air system of any one of the above, and the total fresh air module of the whole-house fresh air system is configured to regulate the freshness, cleanliness and temperature and humidity of the fresh air sent into the room; The five-constant system further includes a temperature regulation system. The temperature regulation system is a radiation type temperature regulation system, which comprises an air conditioning water machine and a plurality of radiation type temperature regulation units connected with the air conditioning water machine, and the radiation type temperature regulation units are laid under the ceiling and / or under the floor and / or in the side wall of the public space and at least one of the rooms.

[0026] Alternatively, the temperature regulation system is a forced convection type temperature regulation system, which comprises an air conditioning main machine and a plurality of fan-coil units connected with the water circuit or fluorine circuit of the air conditioning main machine, and the fan-coil units are laid under the ceiling of the public space and at least one of the rooms.

[0027] The five-constant system of the application, the air conditioning water machine comprises a fluorine circuit system and a water circuit system which exchange heat through a fluorine water heat exchanger; wherein the water circuit system is configured to produce cold water or hot water and deliver to the radiation type temperature regulation units or through a water power module to the radiation type temperature regulation units.

[0028] The five-constant system of the application, the fluorine circuit system is provided with a finned tube external heat exchanger assembly located on the equipment platform, and the output end of the air circuit flow channel of the finned tube external heat exchanger assembly is configured as a strip-shaped air outlet which is docked with the external facade decoration structure of the equipment platform.

[0029] A residential energy center of the application comprises: The fresh air conditioning module of any one of the above, the fresh air module as a total air inlet and outlet main machine of the residence; An air conditioning main machine, which is arranged above or below the total air inlet and outlet main machine; Wherein, the refrigerant circuit in which the second heat exchange module of the total air inlet and outlet main machine is located is a first fresh air fluorine circuit, the refrigerant circuit in which the third heat exchange module is located is a second fresh air fluorine circuit, and at least part of the first fresh air fluorine circuit and / or at least part of the second fresh air fluorine circuit share the external heat exchanger fin group of the air conditioning main machine. Alternatively, the refrigerant circuit in which the second heat exchange module and the third heat exchange module of the total air inlet and outlet main machine are located is a fresh air fluorine circuit, and at least part of the fresh air fluorine circuit shares the external heat exchanger fin group of the air conditioning main machine.

[0030] The residential energy center of the application further comprises an air energy water heater water tank; The air conditioning main machine is an air conditioning fluorine machine; the air conditioning fluorine machine is configured to deliver refrigerant to the fan-coil unit in the residence, and the air conditioning fluorine machine is configured to supply refrigerant to the water tank heat exchanger in the air energy water heater water tank; Alternatively, the air conditioning unit is an air conditioning water unit, which is configured to supply air conditioning water to the radiant temperature control unit or fan coil unit in the residence, and the air conditioning water unit is configured to supply high-temperature circulating water to the water tank heat exchanger in the water tank of the air source water heater. Alternatively, it may also include a refrigerant circuit for an air-source water heater arranged within the air conditioning unit, wherein the refrigerant circuit for the air-source water heater shares the external heat exchanger fin assembly of the air conditioning unit.

[0031] In the residential energy center of the present invention, the exhaust port of the main air inlet and outlet unit and the output end of the air flow channel of the external heat exchanger of the air conditioning unit finned tube are both configured as vertical strip exhaust ports, and the vertical strip exhaust ports are connected to the vertical strip outlets reserved on the exterior decorative structure of the equipment platform.

[0032] Because the present invention adopts the above technical solution, it has the following advantages and positive effects compared with the prior art: In one embodiment of the present invention, the output end of the return air duct is configured to connect the first return air inlet of the inlet air duct and the second return air inlet of the exhaust air duct respectively. A fresh air inlet is provided in the inlet air duct. With the help of the fresh air power point, the exhaust air power point, the fresh air damper and the mode switching damper, the switching between the fresh air replacement mode and the air conditioning internal circulation mode can be realized. Furthermore, a first heat exchange module, an intermediate duct and a second heat exchange module are set. The inlet air duct, the first duct, the intermediate duct and the second duct are connected. The second heat exchange module is arranged between the output end of the first duct and the input end of the second duct, so as to realize the deep dehumidification and cooling of the inlet air in the summer during the rainy season and the preheating of the inlet air in the winter. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the fresh air conditioning module according to Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the mode switching damper of the fresh air conditioning module in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the finned tube heat exchanger assembly of the fresh air conditioning module in Embodiment 1 of the present invention. Figure 4 This is a top view of the fresh air conditioning module according to Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the airflow operation of the fresh air conditioning module in the rainy season sub-mode according to Embodiment 1 of the present invention; Figure 6 This is a schematic diagram illustrating the temperature change of the fresh airflow in the fresh air conditioning module of Embodiment 1 of the present invention under the operating conditions of the plum rain season; Figure 7 This is a schematic diagram illustrating the temperature change of the fresh airflow in the fresh air conditioning module of Embodiment 1 of the present invention under the conditions of the plum rain season and summer. Figure 8 This is a schematic diagram of the airflow operation of the fresh air conditioning module in winter mode according to Embodiment 1 of the present invention; Figure 9 This is a schematic diagram illustrating the temperature change of the fresh airflow in winter under the operating conditions of the fresh air conditioning module of Embodiment 1 of the present invention. Figure 10 This is a top view of the fresh air conditioning module according to Embodiment 2 of the present invention; Figure 11 This is a schematic diagram of the airflow operation of the fresh air conditioning module in the internal circulation mode according to Embodiment 2 of the present invention; Figure 12 This is a schematic diagram of a whole-house five-constant system using a single-pipe bidirectional flow fresh air system according to Embodiment Six of the present invention; Figure 13 This is a schematic diagram of the vertical air duct of the whole-house fresh air system according to Embodiment 3 of the present invention; Figure 14 This is a schematic diagram of the sleeve-type sliding air valve of the whole-house fresh air system according to Embodiment 3 of the present invention; Figure 15 This is another schematic diagram of the sleeve-type sliding air valve of the whole-house fresh air system according to Embodiment 3 of the present invention; Figure 16 This is a schematic diagram of the airflow in the first stage of fresh air replacement in the five constant systems of the present invention, which employs a single-pipe bidirectional flow fresh air system for exhaust. Figure 17 This is a schematic diagram of the airflow in the second stage of the fresh air replacement of the five constant systems using a single-pipe bidirectional flow fresh air system according to Embodiment Six of the present invention. Figure 18 This is a schematic diagram of the room interior stereo system layout for the whole-house fresh air system according to Embodiment 4 of the present invention; Figure 19 This is a schematic diagram of the internal micro-ventilation structure of the storage subsystem of the five-constant system (wardrobe, cabinet, shoe cabinet, bathroom cabinet, etc.) of the present invention, according to Embodiment 8 of the present invention. Figure 20 This is a schematic diagram of the airflow of the internal micro-ventilation structure of the storage subsystem such as wardrobe, cabinet, shoe cabinet, and bathroom cabinet of the five constant systems of the present invention, embodiment eight. Figure 21 This is an overall layout diagram of the storage subsystem of the five-constant system of the present invention, including wardrobes, cabinets, shoe cabinets, and bathroom cabinets, according to Embodiment 8 of the present invention. Figure 22 This is a schematic diagram of the airflow of the storage subsystem of the five-constant system for wardrobes, cabinets, shoe cabinets, bathroom cabinets, etc., according to Embodiment 8 of the present invention; Figure 23 This is an overall layout diagram of a whole-house fresh air system using a single-pipe bidirectional flow fresh air system according to Embodiment 5 of the present invention; Figure 24This is a schematic diagram of the sleeve-type sliding air valve (inner cylinder sliding) of the whole-house fresh air system using a single-pipe bidirectional flow fresh air system according to Embodiment 5 of the present invention. Figure 25 This is a cross-sectional schematic diagram of the sleeve-type sliding air valve (inner cylinder sliding) of the whole-house fresh air system using a single-pipe bidirectional flow fresh air system according to Embodiment 5 of the present invention. Figure 26 This is a schematic diagram of the fresh air replacement airflow of a whole-house fresh air system employing a single-pipe bidirectional flow fresh air system, as described in Embodiment 5 of the present invention. Figure 27 This is a system structure diagram of the three-pipe inlet pre-cooling deep dehumidification outlet air heating fresh air module of Embodiment 9 of the present invention; Figure 28 This is an operational diagram of the three-pipe inlet pre-cooling, deep dehumidification, and outlet air heating fresh air module of Embodiment 9 of the present invention; Figure 29 This is a schematic diagram of the current total heat exchanger fresh air module; Figure 30 This is a layout diagram of the residential energy center according to Embodiment 10 of the present invention. Figure 31 This is an overall schematic diagram of the residential energy center according to Embodiment 10 of the present invention; Figure 32 This is a cross-sectional view of the air conditioning unit of the residential energy center according to Embodiment 10 of the present invention.

[0034] Explanation of reference numerals in the attached diagram: 1. Vertical air duct; 101. First air outlet; 102. Second air outlet; 2. Door frame; 3. Room exhaust duct; 4. Main air inlet / outlet module; 401. Supply air duct; 5. Main exhaust duct; 6. Room door; 7. Radiant temperature control unit; 8. Sleeve-type sliding damper; 801. Inner cylinder; 802. Outer cylinder; 803. Push rod; 804. Drive motor; 9. Stale air collection pipe; 901. Cabinet return air outlet; 10. Cabinet exhaust duct; 11. Micro-perforated fresh air inlet; 12. 13. Partition; 14. Audio Unit; 15. Main Supply Air Duct; 16. Room Fresh Air Duct; 17. Public Space Return Air Inlet; 18. Fresh Air Conditioning Module; 19. Cross-flow Heat Exchanger; 10. First Finned Tube Heat Exchanger; 11. Intermediate Flow Channel; 12. Fresh Air Inlet; 13. Fresh Air Power Point; 14. Humidification Unit; 15. Air Outlet Chamber; 16. Fresh Air Housing; 17. Inlet Air Flow Channel; 17. Exhaust Air Flow Channel; 17. Return Air Flow channel; 1712, First return air inlet; 1713, Second return air inlet; 1714, Exhaust power point; 1715, Second finned tube heat exchanger; 1716, Compressor; 1717, First four-way valve; 1718, Second four-way valve; 1719, First electronic expansion valve; 1720, Second electronic expansion valve; 1721, Third electronic expansion valve; 1722, External heat exchanger; 1723, Lotus connector; 1724, Manifold; 1725, Fresh air damper; 172 6. Mode switching damper; 1727. Sliding vane; 1728. Motor push rod; 1729. Inspection door; 18. Residential energy center; 19. Air source water heater tank; 20. Air inlet duct; 21. Main air inlet and outlet unit; 22. Air conditioning unit; 23. Vertical strip exhaust vent; 24. Fresh air supply vent; 25. Stale air return vent; 26. Fresh air external heat exchanger refrigerant pipe; 27. Air conditioning refrigerant pipe; 28. Fresh air compressor; 29. ​​Air conditioning compressor; 30. Air conditioning air inlet surface. Detailed Implementation

[0035] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, further illustrates the fresh air conditioning module, whole-house fresh air system, five-constant system, and residential energy center proposed in this invention. The advantages and features of this invention will become clearer from the following description and claims.

[0036] Example 1 See Figure 29 Based on an in-depth analysis of a series of problems with the current total heat exchanger fresh air module: ① Low heat exchange intensity and low dehumidification intensity In most climate zones where human activity takes place, under normal winter and summer weather conditions, the temperature difference between indoors and outdoors is ≤12℃. In such scenarios, the temperature difference between fresh air and stale air in the current total heat exchanger fresh air module is ≤6℃, and in economically developed areas like the Yangtze River basin and the Jiangnan region of China, it is even ≤4℃. This small temperature difference leads to very low heat exchange intensity, resulting in very low recovery of cold (summer) and heat (winter) between fresh air and stale air in the current fresh air module.

[0037] More importantly, in summer, the dehumidification intensity of the fresh air module of the total heat exchanger is extremely low, or even non-existent. This is a fatal problem for the five constant systems, because humidity control in the five constant systems, especially preventing condensation and mold growth on the capillary radiant cooling panel, depends on the dehumidification capacity of the fresh air system.

[0038] ② Difficult to use during the cold season In high-latitude, frigid climate zones, such as the Russian Far East and Northwest and Northeast China, the temperature difference between indoors and outdoors in winter can reach 40°C, and in extreme cases, 60°C. In such scenarios, the temperature difference between fresh air and stale air in existing total heat exchanger fresh air modules can reach over 20°C, resulting in high heat exchange intensity of the heat exchange core and significant benefits for indoor heat and moisture recovery in winter. However, in these conditions, the stale air ducts of existing fresh air modules are highly susceptible to freezing and damage, rendering them unusable.

[0039] ③ High ventilation resistance Currently, the core heat exchanger of the fresh air module is manufactured using a special heat and moisture exchange membrane stacking. During operation, fresh air and stale air pass through their respective slit-type channels, resulting in high airflow resistance. Centrifugal fans are needed to drive the airflow in each of these slit-type airflow channels. In spring and autumn, fresh air and stale air do not require energy exchange, but the passage of both still consumes power for supply and exhaust air. Adding a bypass duct further complicates the structure.

[0040] ④ Severe dirt and grime contamination In the current operation of total heat exchanger fresh air modules, the surface of the heat and moisture exchange membrane, which forms a gap-like channel between fresh and stale air, is highly susceptible to the adhesion of airborne dust, microorganisms, and other suspended particles, resulting in fouling that is impossible to clean. This becomes a new source of pollution, severely impacting the quality of subsequent fresh air. The permeable nature of the heat and moisture exchange membrane also allows water vapor molecules and other small-molecule pollutants from the stale air to seep into the fresh air, leading to a pollution cycle. The only solution to the fouling of the heat and moisture exchange membrane is frequent replacement of the core.

[0041] See Figures 1-9This embodiment provides a fresh air conditioning module 17, including an air inlet channel 1709, an exhaust channel 1710, a return air channel 1711, a first heat exchange module, an intermediate channel 1703, a second heat exchange module, a fresh air power point 1705, an exhaust air power point 1714, a fresh air damper 1725, and a mode switching damper 1726.

[0042] The air intake duct 1709 includes a fresh air inlet 1704 and a first return air inlet 1712. The exhaust duct 1710 includes a second return air inlet 1713 and an exhaust outlet. The output end of the return air duct 1711 is connected to the first return air inlet 1712 and the second return air inlet 1713 respectively, and the input end of the return air duct 1711 is connected to the indoor public space of the residence through a section of exhaust duct or to each room of each residence through a pipeline.

[0043] The first heat exchange module includes a first flow channel and a second flow channel. The fresh air flowing through the first flow channel and the fresh air flowing through the second flow channel exchange heat with each other. The input end of the first flow channel is connected to the output end of the air inlet flow channel 1709.

[0044] The intermediate flow channel 1703 is configured to connect the output end of the first flow channel with the input end of the second flow channel.

[0045] The fresh air inlet 1704 and / or the first return air inlet 1712, the air inlet duct 1709, the first flow channel, the intermediate flow channel 1703, and the second flow channel are sequentially combined to form a single-connected air supply duct. The return air duct 1711, the second return air inlet 1713, and the exhaust air duct 1710 are combined to form a single-connected air outlet duct.

[0046] The second heat exchange module is arranged at the input end of the second flow channel, or at the intermediate flow channel 1703, or at the output end of the first flow channel. The second heat exchange module is configured to receive external heat exchange medium and exchange heat with the fresh air flowing through it.

[0047] Fresh air power point 1705 is installed in the supply air duct. Exhaust air power point 1714 is installed in the outlet air duct. Fresh air damper 1725 is installed at fresh air inlet 1704 and is configured to open or close fresh air inlet 1704. Mode switching damper 1726 is installed at the output end of return air duct 1711 and is configured to open only the first return air inlet 1712, only the second return air inlet 1713, or simultaneously open at least a portion of the first return air inlet 1712 and at least a portion of the second return air inlet 1713.

[0048] In operation, fresh air and / or return air are input through fresh air inlet 1704 and / or first return air inlet 1712, and are configured to first enter the first flow channel and exchange heat with the fresh air in the second flow channel for the first time, then exchange heat with the second heat exchange module for the second time, and then exchange heat with the fresh air that subsequently enters the first flow channel for the third time before being output.

[0049] The specific structure of the fresh air conditioning module 17 in this embodiment will be further described below: In this embodiment, the first return air inlet 1712 and the second return air inlet 1713 can be arranged side by side (i.e., they are close together and located in the same plane), and the mode switching damper 1726 is a sliding electric damper. The sliding plate 1727 of the sliding electric damper slides between the first return air inlet 1712 and the second return air inlet 1713. The flow rate of the first return air inlet 1712 and the second return air inlet 1713 can be adjusted by driving the sliding plate 1727 to slide through the motor push rod 1728. Specifically, the sliding plate 1727 can slide through the corresponding door plate groove. This realizes a linkage electric damper with opposite opening and closing phases, and performs opposite phase operations on the opening degree of the first return air inlet 1712 and the second return air inlet 1713. If the first return air vent 1712 is fully open, then the second return air vent 1713 is closed; if the second return air vent 1713 is fully open, then the first return air vent 1712 is closed; if the opening degree of the first return air vent 1712 is x (1.0 > x > 0), then the opening degree of the second return air vent 1713 is 1 - x (1.0 > x > 0).

[0050] Furthermore, the air inlet channel 1709 and the air outlet channel 1710 can be arranged side by side, and the return air channel 1711 can be arranged at the end formed by the air inlet channel 1709 and the air outlet channel 1710.

[0051] In this embodiment, the fresh air damper 1725 can also be a sliding electric damper or other forms of electric damper, as long as it can open and close the fresh air inlet 1704.

[0052] In this embodiment, the fresh air conditioning module 17 further includes a third heat exchange module, which is arranged at the output end of the second flow channel. The third heat exchange module is configured to receive an external heat exchange medium and exchange heat with the fresh air flowing through it, or to have no heat exchange with the fresh air flowing through it. This allows for a fourth heat exchange to adjust the final outlet air temperature based on the operating mode.

[0053] In this embodiment, the heat exchange medium channels of the second heat exchange module and the heat exchange medium channels of the third heat exchange module are arranged independently, specifically in parallel, and the opening and closing of their respective heat exchange medium channels can be controlled.

[0054] In this embodiment, the fresh air conditioning module 17 also includes a fresh air housing 1708, in which a fresh air chamber, an exhaust air channel 1710 and a return air channel 1711 are formed. The first heat exchange module is installed in the fresh air chamber and cooperates to form an intermediate channel 1703 and an air inlet channel 1709 located in the fresh air chamber.

[0055] Furthermore, an air outlet cavity 1707 is formed inside the fresh air housing 1708, which is connected to the output end of the second flow channel, and the fresh air power point 1705 is installed inside the air outlet cavity 1707.

[0056] The fresh air housing 1708 can be rectangular in shape. Viewed from the top, it specifically includes an exhaust duct 1710 at the top, and a fresh air chamber and a return air duct 1711 below the exhaust duct 1710. A recessed area can be formed in the upper right corner of the fresh air chamber, which forms the return air duct 1711. The top of the fresh air chamber, where it meets the exhaust duct 1710, forms an inlet air duct 1709 in conjunction with the first heat exchange module and the plate. An L-shaped intermediate duct 1703 can be formed at the bottom and left side of the fresh air chamber. The right side of the first heat exchange module, in conjunction with the plate, forms an outlet air chamber 1707. An independent chamber can be formed on the right side of the inlet air duct 1709 for installing a humidification unit 1706 (preferably a steam generator). Extending the output end of the humidification unit 1706 into the outlet air chamber 1707 (i.e., the output end of the second duct) humidifies the output fresh air.

[0057] Furthermore, an inspection door 1729 can be further opened on the wall of the fresh air housing 1708 corresponding to the intermediate flow channel 1703.

[0058] In this embodiment, the first heat exchange module can specifically be a cross-flow heat exchanger 1701. Structurally, the cross-flow heat exchanger 1701 is the core, constructing a three-stage heat exchange system of air-to-air and air-to-refrigerant. By applying the cross-flow heat exchanger 1701, the problems of high ventilation resistance and severe fouling in existing total heat exchangers described above are solved.

[0059] The cross-flow heat exchanger 1701 of this embodiment is composed of several thermally conductive thin sheets with interlocking edges, forming several slit-type airflow channels. The several slit-type airflow channels include cold fluid channels and hot fluid channels, which are arranged alternately, and the airflow directions in the cold fluid channels and hot fluid channels are staggered. The component sheets of the cross-flow heat exchanger 1701 include metal foil sheets or plastic sheets, which can efficiently exchange heat while blocking the lateral migration of polluted air components to fresh air. Preferably, aluminum foil sheets with a thickness of mm are used.

[0060] Furthermore, the heat-conducting fins of the cross-flow heat exchanger 1701 can be set vertically, with the fresh air flow rotating in a vertical plane; or they can be set horizontally, with the fresh air flow rotating in a horizontal plane.

[0061] In this embodiment, the second heat exchange module can specifically be the first finned tube heat exchanger 1702, and the third heat exchange module can be the second finned tube heat exchanger 1715. Both are connected to the refrigerant inlet and outlet of the air conditioning unit on the equipment platform, and are connected to the refrigerant circuit of the compressor 1716, external heat exchanger 1722, and expansion valve inside the air conditioning unit, forming a closed refrigerant circuit. Specifically, the first finned tube heat exchanger 1702 and the second finned tube heat exchanger can each have their own electronic expansion valve, lotus connector 1723, and manifold 1724, making them two independently controllable refrigerant flow terminals in the refrigeration and air conditioning system.

[0062] In this embodiment, the fresh air module may further include a fresh air filter unit, which may be an air filter element installed at the fresh air inlet 1704. Specifically, a rectangular frame may be provided at the fresh air inlet 1704 corresponding to the first flow channel input end of the fresh air housing 1708. The rectangular frame can limit the installation of the air filter element. The connection may be a snap-fit ​​or other method, as long as it can be replaced.

[0063] In this embodiment, the aforementioned fresh air power point 1705 can be a centrifugal fan. Referring to the rectangular cross-section of the output end of the cross-flow heat exchanger 1701 or the second finned tube heat exchanger 1715, it can specifically be configured as two centrifugal fans arranged side by side. The aforementioned exhaust power point 1714 can also be a centrifugal fan, specifically arranged within the return air duct 1711, and the outlet of this centrifugal fan is connected to the second return air outlet 1713.

[0064] In this embodiment, the fresh air conditioning module 17 establishes fresh air replacement for the room group through the following operations: ① The fresh air damper 1725 on the bottom plate of the fresh air housing 1708 is opened; the first return air inlet 1712 of the phase-opposite linkage mode switching damper 1726 is opened and the second return air inlet 1713 is closed; the air conditioning unit and the fresh air power point 1705 of the fresh air air conditioning module 17 are started, and the system enters the fresh air replacement response state. ②The fresh air damper 1725 on the bottom plate of the fresh air housing 1708 is partially opened; the first return air inlet 1712 of the phase-opposite linkage mode switching damper 1726 is partially opened, and the second return air inlet 1713 is partially closed in the opposite phase; the air conditioning unit and the fresh air power point 1705 of the fresh air air conditioning module 17 are started, and the system enters the partial fresh air replacement response state.

[0065] In this embodiment, the fresh air conditioning module 17 has three operating sub-modes in the fresh air replacement mode: rainy season, summer, and winter, as follows: Currently, dehumidification in high-humidity scenarios such as the humid spring weather in southern coastal areas and the plum rain season in the Yangtze River basin has become a prominent issue in the air conditioning industry. This embodiment refers to the dehumidification solutions for the humid spring weather and plum rain season as the plum rain season mode.

[0066] The "return to spring" weather, which occurs in the late winter and early spring in coastal areas of southern China such as Guangdong and Fujian, is characterized by initially low temperatures followed by a rapid rise to 20-25°C, starting at around 10-15°C. In contrast, the actual ambient temperature during the "plum rain season" in the middle and lower reaches of the Yangtze River, occurring in early summer (June-July), is 25-30°C. Therefore, the temperatures during the "return to spring" weather in the southern coastal areas and the plum rain season in the middle and lower reaches of the Yangtze River are generally suitable. However, due to the high absolute and relative humidity during the "return to spring" weather and the high partial pressure of water vapor in the atmosphere, the evaporation (heat dissipation) of sweat from the human body is severely weakened, resulting in a significant increase in perceived temperature and a severe decrease in comfort. Furthermore, high humidity reduces the actual oxygen content of the air and induces the rampant growth of mold and other microorganisms. While ordinary air conditioners can dehumidify under high humidity conditions such as the "return to spring" weather and the plum rain season, they also lower the indoor temperature, which was originally within a comfortable range, further reducing indoor comfort from a temperature perspective.

[0067] In this embodiment, the fresh air conditioning module 17 uses a combination of a cross-flow heat exchanger 1701 and a double-finned tube (evaporator). During the humid plum rain season, the first finned tube heat exchanger 1702 operates, while the second finned tube heat exchanger 1715 is stopped. The fresh air damper 1725 is opened, and the mode switching damper 1726 controls the opening of the first return air vent 1712 and the closing of the second return air vent 1713, implementing a three-stage heat exchange process of "inlet pre-cooling - deep dehumidification - outlet reheating" for the high-humidity fresh airflow during the plum rain season. During fresh air dehumidification operation, the fresh airflow rotates clockwise as shown in the diagram. The high-humidity fresh air at temperature T1 first passes through the first flow channel (hot fluid channel) of the cross-flow heat exchanger 1701 and is then passed through the second flow channel (cold fluid channel) of the first finned tube heat exchanger 1701. 02 (Evaporator) The low-temperature exhaust air absorbs heat and cools down to T2, achieving its first heat exchange (heat release and cooling) and "intake air pre-cooling"; after "pre-cooling", the sensible heat of the fresh air has been released, the temperature has been significantly reduced, and the relative humidity has been significantly increased, approaching saturation and even releasing some moisture. Then, in a saturated or near-saturated high relative humidity state, it passes through the middle flow channel 1703 and enters the evaporator to achieve the second heat exchange (cooling and dehumidification). That is, the evaporator uses almost all of its cooling capacity to absorb the latent heat of water vapor in the fresh air to achieve "deep dehumidification" of the fresh air to T3; after deep dehumidification, the fresh air passes through the cold fluid channel of the cross-flow heat exchanger 1701 and is "reheated" by the intake air in the hot flow channel to T4. The "temperature" of the fresh air is restored, and then it is injected into the indoor space.

[0068] This embodiment achieves "deep dehumidification," reducing the absolute humidity and water vapor partial pressure of the indoor space, increasing the oxygen partial pressure and improving the perceived temperature, while maintaining the stability of the indoor temperature to achieve constant temperature dehumidification. It overcomes the defect of ordinary air conditioners that can only achieve dehumidification by cooling, which requires "cooling and dehumidification to be done in parallel," and achieves the dehumidification and heating technology effect of a complex three-pipe air conditioner.

[0069] (ii) Summer Sub-pattern Summer mode focuses on deep dehumidification of fresh air with high humidity in summer, while simultaneously operating the first finned tube heat exchanger 1702 and the second finned tube heat exchanger 1715. When the summer sub-mode is running, during the plum rain season, the fresh air in the sub-mode undergoes three heat exchanges: "inlet pre-cooling - deep dehumidification - outlet reheating". Then it flows into the second finned tube heat exchanger 1715 to achieve the fourth heat exchange (cooling and dehumidification) to T5. Finally, it flows into the centrifugal fan intake as low temperature and low humidity air and is pressurized and sent to the indoor space.

[0070] (III) Winter Sub-pattern In this embodiment, the winter sub-mode focuses on heating and humidifying the fresh air.

[0071] In winter, the temperature of fresh air is low. If it flows directly through the condenser, the heat pump air conditioning system will have difficulty establishing normal condensing pressure and heat pump system circulation pressure difference, thus affecting efficient operation. In this embodiment, the fresh airflow in winter first flows into the winter cold fluid channel (first channel) of the cross-flow heat exchanger 1701 and is preheated by the air outlet of the condenser (first finned tube heat exchanger 1702) in the winter hot fluid channel (second channel) before entering the condenser (first finned tube heat exchanger 1702). This increases the base temperature of the airflow between the fins of the condenser in winter, which is conducive to establishing normal condensation pressure and heat pump system circulation pressure difference to achieve efficient operation. Winter fresh air at temperature T1, driven by a centrifugal fan, flows along the path of summer fresh air, passing through the first flow channel (winter cold fluid channel) of the cross-flow heat exchanger 1701 and is preheated to T2. Then it flows through the first finned tube heat exchanger 1702, which acts as a condenser, and is reheated to T3. It then flows through the second flow channel (winter hot fluid channel) of the cross-flow heat exchanger 1701 and is cooled to T4. It then flows into the second finned tube heat exchanger 1715, which acts as a condenser, and undergoes a fourth heat exchange to T5. Finally, it is drawn into the centrifugal fan, pressurized, and discharged, where it merges into the water mist or water vapor of the humidifier to become warm and humid airflow and is sent into the room.

[0072] The internal circulation air conditioning mode of the fresh air conditioning module 17 in this embodiment is as follows: In this embodiment, the fresh air conditioning module 17 replaces the traditional fan coil units or indoor units in each room in the basic internal circulation air conditioning mode, and regulates the temperature and humidity of the indoor space to implement internal circulation air conditioning.

[0073] The room group served by the fresh air conditioning module 17 in this embodiment has the same air path structure and air path operation path under the two basic modes of fresh air replacement and internal circulation air conditioning; both are three-stage airflow circulation systems, including public spaces such as living room corridors that replace the supply air duct 401, the main room space, and the return air duct. The main nodes on the airflow path of the fresh air replacement or internal circulation air conditioning in this embodiment are the fresh air conditioning module 17, the vertical air duct 1 for room air intake, and the damper at the room return air inlet. In this embodiment, during fresh air replacement operation, the fresh air conditioning module 17 drives the airflow to operate in an open-circuit mode, featuring a dual-power-point mode: the first power point is the module unit's fresh air fan (fresh air power point 1705), which draws in fresh air from the ambient atmosphere through the fresh air inlet, processes it under air conditioning, and then outputs fresh air that traverses the common space of the room group (replacing the supply air duct 401) and the main space of the room; the second power point is the exhaust fan (exhaust power point 1714), where the stale airflow is drawn in and pressurized by the exhaust fan after flowing through the return air duct, and finally discharged at high speed into the ambient atmosphere for diffusion and dilution; In this embodiment, a fresh air conditioning module 17 with pre-cooling and deep dehumidification and cooling is established in the internal circulation air conditioning basic mode through the following operations: the fresh air damper 1725 on the bottom plate of the main air intake and exhaust module 4 (i.e., the fresh air conditioning module 17) is closed; the first return air inlet 1712 of the mode switching damper 1726 with opposite phase linkage is closed and the second return air inlet 1713 is opened; the air conditioning main unit and the fresh air fan of the fresh air conditioning module 17 are started, and the system enters the internal circulation air conditioning response state. In this embodiment, the internal circulation air conditioner has the characteristics of a single power point mode: the fan of the fresh air air conditioning module 17 (fresh air power point 1705) is the only power point for the entire internal air circulation process. It is responsible for both the intake of return air for the whole house and the delivery of air-conditioned air after air conditioning treatment, driving the airflow to circulate in a closed loop between the public space of the whole house group (replacing the supply air duct 401), the main space of the room, and the return air duct. In this embodiment, a fresh air conditioning module 17, which is designed for pre-cooling and deep dehumidification of the air intake, operates in two modes: fresh air replacement and internal circulation air conditioning. Aside from the difference in the module itself between a closed-loop internal circulation airflow and an open-loop fresh air replacement airflow, the flow path nodes, flow field distribution, and resistance distribution are identical in the three-section main airflow path, which includes the living room corridor public space (replacing the supply air duct 401), the main room space, and the return air duct. After the ambient fresh air or room group return air is air-conditioned, it is drawn in and pressurized by the supply air centrifugal fan, then directly or through a connecting pipe into the common space of the room group, and then through the public space (replacing the supply air duct 401). The air enters each room from the common space, undergoes heat and mass transfer within the room, and is then drawn into the return air duct by the negative pressure at the room's return air vent. The difference only occurs after the air returns to the fresh air conditioning module 17: In the internal circulation mode, the return airflow finally flows out of the return air duct and is drawn back in by the supply air centrifugal fan (fresh air power point 1705) for pressurization and injection into the common space to begin the next cycle; in the fresh air replacement mode, the return airflow finally flows out of the return air duct and is drawn in by the exhaust fan (exhaust power point 1714) for pressurization and high-speed exhaust into the ambient atmosphere for diffusion and dilution, while the air supplied to the supply air centrifugal fan vent (fresh air power point 1705) is not the return air from the room group but the ambient fresh air.

[0074] The advantages of the fresh air conditioning module 17 in this embodiment are: ① Provides constant temperature dehumidification technology for high humidity conditions such as the plum rain season. This embodiment uses a cross-flow heat exchanger 1701 combined with an evaporator. During the humid plum rain season, the first finned tube heat exchanger 1702 is operated while the second finned tube heat exchanger 1715 is stopped. This process involves three heat exchanges: "inlet pre-cooling - deep dehumidification - outlet reheating," to process the high-humidity fresh airflow during this period. During operation, the high-humidity fresh air first passes through the first channel of the cross-flow heat exchanger 1701 and is cooled by the low-temperature outlet air from the evaporator in the second channel, achieving its first heat release and cooling, thus "inlet pre-cooling." After "pre-cooling," the fresh air has released its sensible heat, its temperature has significantly decreased, and its relative humidity has significantly increased, approaching saturation and even releasing some moisture. It then passes through the intermediate channel 1703 in a saturated or near-saturated high relative humidity state. The air enters the evaporator (first finned tube heat exchanger 1702) to achieve a second heat release dehumidification, that is, the evaporator uses almost all of its cooling capacity to absorb the latent heat of water vapor in the fresh air to achieve "deep dehumidification" of the fresh air. After deep dehumidification, the fresh air passes through the second flow channel of the cross-flow heat exchanger 1701 and is "reheated" by the air intake in the first flow channel, and the temperature of the fresh air is restored before it is injected into the indoor space. This embodiment not only achieves "deep dehumidification" to reduce the absolute humidity and water vapor partial pressure of the indoor space, but also maintains the stability of the indoor temperature. It overcomes the defect of ordinary air conditioners that "cooling and dehumidification must be done in parallel" when cooling can only achieve dehumidification, and achieves the "constant temperature dehumidification" technical effect of cooling, dehumidification and then heating in a highly complex three-pipe air conditioner.

[0075] ② Achieve deep dehumidification of fresh air to ensure the safe operation of the five constant systems. In summer mode, the fresh air module of the finned tube assembly 17, designed for high-humidity summer climates, cools the high-humidity fresh air by absorbing heat from the low-temperature outlet air of the first finned tube heat exchanger 1702 in the cold fluid channel of the cross-flow heat exchanger 1701. This initial heat release and cooling process constitutes "inlet air pre-cooling." After "pre-cooling," the fresh air has released its sensible heat, its temperature has significantly decreased, and its relative humidity has significantly increased, approaching saturation and even releasing some moisture. It then enters the first finned tube heat exchanger 1702 through the intermediate flow channel 1703 at a saturated or near-saturated high relative humidity state. 2. The second heat release and cooling is achieved by using the first finned tube heat exchanger 1702 to absorb the latent heat of water vapor in the fresh air with a high proportion of cooling capacity to achieve "deep dehumidification" of the fresh air; then, the cold fluid enters the cross-flow heat exchanger 1701 to absorb heat and "reheat", and then flows into the second finned tube heat exchanger 1715, which acts as an evaporator, for a fourth heat exchange, becoming low-temperature and low-humidity fresh air injected into the indoor space; the fresh air air conditioning module 17 adjusts and controls the humidity of the indoor space by outputting low-temperature and low-humidity fresh air, reducing the perceived temperature, improving the comfort of the living environment in summer, and ensuring the safe operation of the five constant systems; The dehumidification capability and effect of the fresh air in this embodiment far surpasses the dehumidification technology of the existing fresh air module. It also overcomes the shortcomings of the fresh air air conditioning module 17, which is composed of a single finned tube heat exchanger and a cross-flow heat exchanger 1701, where the final air outlet temperature is raised because the cold fluid channel of the cross-flow heat exchanger 1701 is "reheated" by the hot fluid channel.

[0076] ③ Improve the heat exchange efficiency and heat exchange intensity of the cross-flow heat exchanger 1701 In this embodiment, under summer mode, the low-temperature outlet air from the evaporator (first finned tube heat exchanger 1702) passes through the first flow channel of the cross-flow heat exchanger 1701 to perform "inlet pre-cooling" on the ambient fresh air in the second flow channel. The temperature difference between the cold and hot air at the inlet of the first and second flow channels reaches more than 20°C, and the heat transfer temperature difference between the cold and hot air reaches more than 10°C. Compared with the existing total heat exchanger fresh air module, the corresponding indicators are significantly improved by more than 100%. The heat exchange efficiency and heat exchange intensity of the cross-flow heat exchanger 1701 in this embodiment far exceed those of the existing total heat exchanger fresh air module.

[0077] ④ This prepared the conditions for a quiet and safe air conditioning system for residential building complexes. In this embodiment, the switching between fresh air replacement and internal circulation air conditioning modes is achieved through the opening and closing operations of the fresh air damper 1725 and the mode switching damper 1726. Furthermore, the airflow paths of fresh air replacement and internal circulation air conditioning are the same, both consisting of a fresh air conditioning module 17 unit → living room corridor public space → room → return air duct → internal circulation module unit forming an open (closed) loop. The switching between the two modes of fresh air replacement and internal circulation air conditioning only occurs within the fresh air conditioning module 17 unit. This embodiment not only integrates the indoor air conditioning units of all rooms, including public spaces, into a single internal circulation air conditioning module, but also further integrates the whole-house internal circulation air conditioning system and the fresh air system into a unified whole-house fresh air air conditioning system. All airflow power components are concentrated in the fresh air air conditioning module 17 and installed on the equipment platform outside the room group, thus preparing the conditions for an absolutely quiet, safe and reliable air conditioning system and fresh air system for the five constant room groups.

[0078] ④ Easy to clean and reduces fresh air pollution The fresh air conditioning module 17 in this embodiment has a simple structure and can be installed on the ceiling of the equipment platform or balcony, or it can be suspended on the side wall of the balcony or equipment platform. In this embodiment, the cross-flow heat exchanger 1701 serves as the core for the first and third heat exchanges of fresh air. It can be inserted into the fresh air housing 1708, which is either vertically suspended or ceiling-mounted. It can be easily removed from the fresh air conditioning module 17 for cleaning and then reinstalled, thereby reducing or even eliminating the pollution of fresh air by the cross-flow heat exchanger 1701.

[0079] Example 2 SeeFigure 10 and Figure 11 This embodiment provides a fresh air conditioning module 17 based on the above embodiment one. The specific difference is that the first heat exchange module (cross-flow heat exchanger 1701) is in the shape of a parallelogram, and the air inlet channel 1709 and the middle channel 1703 are both wedge-shaped channels with gradually increasing cross-sectional area along the airflow direction.

[0080] In this embodiment, due to the parallelogram structure design of the cross-flow heat exchanger 1701, a wedge-shaped air inlet channel and a wedge-shaped air outlet channel with complementary structural features are formed. This ensures that the flow cross-sectional area of ​​the wedge-shaped air inlet channel and the wedge-shaped air outlet channel of the cross-flow heat exchanger 1701 changes in the same direction in a positive proportion with the air volume flowing through the cross-section, which promotes the uniformity of airflow and reduces flow resistance, while also reducing the size and weight of the total air inlet and outlet module 4.

[0081] Example 3 See Figures 12-18 This embodiment provides a whole-house fresh air system for a group of rooms, which includes multiple rooms and a public space connected to each room. The whole-house fresh air system includes the fresh air module, the single-pipe bidirectional flow whole-house fresh air system, and the room relay channel described in embodiments one to four above.

[0082] A single-pass bidirectional flow whole-house fresh air system is configured to directly or indirectly introduce fresh air into the public space under positive pressure through fresh air power points, and is also configured to construct stale air return ends in one or more rooms through a single-pass duct system, and to extract stale air from the rooms in conjunction with exhaust power points. In other words, by introducing fresh air under positive pressure into the public space and extracting stale air from the rooms, a negative pressure state is created within the rooms, thereby establishing a pressure difference between the public space and the rooms.

[0083] Each room relay channel corresponds one-to-one with the room's waste air return air terminal, and the room relay channels are configured to connect public spaces and rooms.

[0084] Furthermore, sleeve-type sliding dampers can be installed at the corresponding room's waste air return end, and the opening or closing can be controlled by the sleeve-type sliding damper 8.

[0085] See Figure 13 In this embodiment, the room relay channel is a vertical duct 1. The vertical duct 1 is configured to have a first air outlet 101 facing the public space and a second air outlet 102 facing the room. The first air outlet 101 and the second air outlet 102 are arranged vertically away from each other and are connected by a duct flow channel formed by the inner wall of the vertical duct 1. The duct flow channel is used to dissipate sound wave transmission between the public space and the room. The vertical duct 1 can be a passive vertical duct or an active vertical duct.

[0086] The passive vertical duct includes a first air vent 101 facing the public space and a second air vent 102 facing the room. The first air vent 101 and the second air vent 102 are arranged vertically away from each other (the first air vent 101 is the air inlet, and the second air vent 102 is the air outlet; specifically, the first air vent 101 can be located at the lower end and the second air vent 102 at the upper end, or the first air vent 101 can be located at the upper end and the second air vent 102 at the upper end) and are connected by a duct flow channel formed by the inner wall of the passive vertical duct. The purpose of arranging them far apart is to maximize the distance that sound waves travel within the passive vertical duct for attenuation. The vertical distance between the first air vent 101 and the second air vent 102 is greater than half the room height. The first air vent 101, the second air vent 102, and the air duct flow channel form a bent delivery channel. The bent area of ​​the bent delivery channel is used to slow down the transmission of sound waves and form a fresh air replacement and conduction node between the public space and the room, so that the public space and the room can achieve air circulation and maintain quietness when the door 6 is not opened.

[0087] During operation, the exhaust single-pipe bidirectional flow fresh air replacement system injects fresh air into the living room corridor (public space), establishing a slight positive pressure in the corridor, and extracts stale air from each room, establishing a negative pressure state in each room. This creates a pressure difference between the first air outlet 101 and the second air outlet 102 of the passive vertical air duct in each room. Driven by this pressure difference, the fresh air in the living room corridor flows from bottom to top through the vertical air duct 1, rushing into the room space at a certain speed and direction angle, driving the stale air in the room into the return air duct, thus achieving fresh air replacement in the room.

[0088] The active vertical duct is based on the passive vertical duct. It has a relay power point (centrifugal fan) set in the duct channel. It is configured to draw fresh air from the public space through the first air outlet 101 and output it to the room with positive pressure through the second air outlet 102 (that is, the relay power point further pulls fresh air from the public space into the room). In this embodiment, fresh air is injected into public spaces such as the living room and corridor by the fresh air power point of the single-pipe bidirectional flow whole-house fresh air system, while stale air is extracted from each room by the exhaust power point. Driven by the relay power point in the active vertical air duct, the fresh air in the living room and corridor flows from bottom to top (or from top to bottom) through the active vertical air duct and enters the room space at a certain speed and direction angle, driving the stale air in the room into the return air duct, thereby realizing the replacement of the room with fresh air.

[0089] In other embodiments, the aforementioned room relay channel may also be a door, which is a cavity structure and configured to have a first air vent facing the public space and a second air vent facing the room. The first and second air vents are arranged vertically or horizontally away from each other and are connected by a duct flow channel formed by the inner wall of the cavity of the door. This duct flow channel is also used to dissipate sound wave transmission between the public space and the room and to guide or drive the flow of fresh air.

[0090] In this embodiment, the single-pass bidirectional flow whole-house fresh air system may specifically include a single-pass duct system, a fresh air module, and an exhaust module. The single-pass duct system may include a main exhaust duct 5 and several room exhaust ducts 3.

[0091] The fresh air module is installed on the exterior wall of the public space and connects the public space to the environment, or it is installed on the exterior wall of a room and connects the public space to the environment through a section of air supply duct 401. The fresh air module is configured to introduce fresh air into the environment under positive pressure to establish a fresh air supply in the public space. The exhaust module is connected to the exhaust ducts 3 of each room through the main exhaust duct 5, and the sleeve-type sliding damper 8 is installed at the end of the exhaust duct 3 of each room that extends into the room. The fresh air module is the aforementioned power source for fresh air supply, and the exhaust module is the aforementioned power source for exhaust supply.

[0092] The fresh air module is located on the exterior wall of the public space (either installed on the exterior wall of a room or on an equipment platform, extending into the public space through the main air supply duct 14) and is configured to introduce fresh air under positive pressure to establish a fresh air supply in the public space, thus utilizing the public space as an air supply channel. Specifically, the fresh air module can be configured to have only fresh air filtration functions (air freshness and cleanliness), or it can be configured to have fresh air filtration, summer fresh air cooling and dehumidification, and winter fresh air heating and humidification units, undertaking the task of regulating the air freshness, cleanliness, and temperature and humidity within the building space.

[0093] The exhaust module forms a room exhaust return air end in the corresponding room through the main exhaust duct 5 and the room exhaust duct 3. The room exhaust return air end is configured to extract exhaust air to create a negative pressure extraction state in the room. Specifically, the negative pressure end of the exhaust module can be connected to a main exhaust duct 5, and the room exhaust duct 3 of each room can be connected to the main exhaust duct 5, thereby realizing negative pressure extraction of exhaust air from multiple rooms.

[0094] See Figure 14 and Figure 15 The sleeve-type sliding air valve 8 in this embodiment includes an inner cylinder 801, an outer cylinder 802, and a drive system.

[0095] The outer cylinder 802 includes a first overlapping area, a ventilation hole area, a second overlapping area, and an inner cylinder 801 dwelling area; the inner cylinder 801 includes a third overlapping area, a covering area, and a fourth overlapping area. The cross-sectional structure of the inner cylinder 801 and the outer cylinder 802 is the same, and can be one of the following: triangular, rectangular, grooved rectangular, cylindrical, semi-cylindrical, or isosceles trapezoidal.

[0096] Both the inner cylinder 801 and the outer cylinder 802 are columnar thin-walled structures, with the inner dimension of the outer cylinder 802 cross-section being slightly larger than the outer dimension of the inner cylinder 801 cross-section.

[0097] The drive system includes a drive motor 804 and a push rod 803. The drive motor 804 and the push rod 803 are located inside the inner cylinder 801. A crossbeam is provided at the front end of the push rod 803, and the crossbeam is perpendicular to the push rod 803. The crossbeam is symmetrically arranged with axial straight gaps connecting to the outer cylinder 802 wall. The connection point between the push rod 803 and the crossbeam is located at or near the geometric center point of the outer cylinder 802 wall.

[0098] When the sleeve-type sliding air valve 8 is opened in this embodiment, the drive motor 804 and the push rod 803 push the outer cylinder 802 to slide on the outer surface of the inner cylinder 801. The outer cylinder 802 partially or entirely slides to the dwell area. The ventilation hole area on the wall of the outer cylinder 802 partially or entirely overlaps with the ventilation opening of the inner cylinder 801. Under the positive pressure of the exhaust module and exhaust duct, fresh air flows out of the room through the ventilation hole area of ​​the inner cylinder 801, realizing the replacement of fresh air in the room.

[0099] When the sleeve-type sliding air valve 8 is closed in this embodiment, the drive motor 804 pushes the push rod 803 to push the outer cylinder 802 to slide on the inner surface of the inner cylinder 801. The outer cylinder 802 is completely separated from the residence area, and the ventilation hole area on the wall of the inner cylinder 801 overlaps with the outer cylinder 802. Under the negative pressure of the exhaust module and exhaust pipe, the cylinder wall of the outer cylinder 802 is pressed against the inner wall of the inner cylinder 801, the room's stale air return end is closed, and the room's fresh air replacement is terminated.

[0100] The main functions of the fresh air system in this embodiment are reflected in the following aspects: single-pass + bidirectional flow + dual power (or triple power if a fan is installed in the vertical duct) + three points + large air volume. It adopts a layout where fresh air is supplied to the public space and stale air is extracted using a single-pass duct system (exhaust duct). Utilizing the public space as the fresh air supply channel, only one set of ductwork is needed within the ceiling to achieve bidirectional fresh air replacement. Compared to existing solutions, one less set of ductwork is required, thereby further increasing the flow area of ​​the exhaust duct in the narrow ceiling space (significantly increasing the airflow at the same noise level). Combined with the fresh air power points and exhaust power points (dual power and two of these points), and the vertical duct as the central point connecting the room and the public space, a large-volume fresh air replacement effect is ultimately achieved.

[0101] Example 4 See Figure 18 This embodiment, based on the above embodiments, adds a speaker unit 13 to the sleeve-type sliding damper 8. Specifically, the outer cylinder 802 and inner cylinder 801 of the sleeve-type sliding damper 8 cooperate to form a mounting groove extending along the sliding direction, and the speaker unit 13 is integrated within the mounting groove. For example, when the outer cylinder 802 and inner cylinder 801 are rectangular or semi-circular, the surfaces of the outer cylinder 802 and inner cylinder 801 facing the room can be recessed inward to form the aforementioned mounting groove, and the speaker unit 13 is directly installed within this mounting groove.

[0102] A speaker can be attached to the second vent 102 of either the active or passive vertical duct. This speaker can be a columnar structure embedded in the exhaust vent, with the actual return air area of ​​the exhaust vent located on both sides of the columnar speaker. The speaker's appearance on the lower indoor side of the vertical duct 1 can be the same as the speaker structure of the first vent 101, or it can be similar in color to the doorpost. By installing decorative speakers at three points—the second air vent 102 of the whole-house fresh air system, the sleeve-type sliding air valve 8, and the bottom of the active / passive vertical air duct on the indoor side—they not only serve a decorative purpose on the structure of the second air vent 102 in the room, but also create a dynamic three-dimensional spatial relationship and sound wave phase relationship with the cochlea of ​​the people staying in the room, producing a wonderful room stereo sound effect.

[0103] Example 5 See Figure 23 and Figure 26 Based on the above embodiments, this embodiment provides a whole-house fresh air system. The difference is that the single-pipe bidirectional flow whole-house fresh air system has been adjusted. Specifically, the whole-house fresh air system is changed from a single-pipe bidirectional flow whole-house fresh air system with ductless air supply to public spaces and return air to rooms to a single-pipe bidirectional flow whole-house fresh air system with fresh air supply to rooms and ductless exhaust to public spaces, with supply as the main component.

[0104] This whole-house fresh air system is also used in room groups, which include multiple rooms and public spaces connected to each room. The whole-house fresh air system includes: fresh air modules, single-pipe bidirectional flow whole-house fresh air system and room relay channels.

[0105] The single-pass bidirectional flow whole-house fresh air system is configured to construct a room fresh air supply end in one or more rooms through a single-pass duct system and introduce ambient fresh air in conjunction with fresh air power points, and is configured to exhaust sewage air directly or indirectly from outside the public space through exhaust power points.

[0106] The room relay channel corresponds one-to-one with the fresh air supply terminal of the room and is arranged in the corresponding room. The specific structure of the room relay channel is the same as that in the above embodiment.

[0107] The fresh air supply module of the residential storage system is connected to the fresh air power point, or the fresh air supply module is connected to the fresh air power point through a single-pass pipeline system.

[0108] Furthermore, sleeve-type sliding dampers can be installed at the corresponding room's waste air return end, and the opening or closing can be controlled by the sleeve-type sliding damper 8.

[0109] Specifically, a single-pass bidirectional flow whole-house fresh air system may include a single-pass duct system, a fresh air module, and an exhaust module. The single-pass duct system includes a main fresh air duct and several room fresh air ducts 15.

[0110] The exhaust module is installed on the exterior wall of the public space and connects the public space to the environment, or it is installed on the exterior wall of a room and connects the public space to the environment through an exhaust duct 402. The exhaust module is configured to exhaust waste air to establish a negative pressure extraction state in the public space. The fresh air module is connected to the fresh air ducts 15 of each room through the main fresh air duct. The sleeve-type sliding damper 8 is installed at the end of the fresh air duct 15 that extends into the room. The fresh air module is the power point for fresh air supply, and the exhaust module is the power point for exhaust. The fresh air supply module of the residential storage system can be directly connected to the fresh air module through a pipe, or connected to the fresh air duct of the corresponding room. With the help of the sleeve-type sliding damper 8 on the fresh air duct of each room, the high positive pressure is achieved by closing the fresh air duct of the room to the cabinet exhaust duct 10.

[0111] The exhaust module can be installed on the exterior wall of a public space and connected to the public space and the environment, or installed on the exterior wall of a room and connected to the public space and the environment through a section of exhaust duct. The exhaust module is configured to extract stale air through its public space return air vent 16 located in the public space to establish a negative pressure extraction state in the public space.

[0112] In operation, this embodiment of the single-pass bidirectional flow fresh air system focuses on room ventilation, delivering fresh air to each room through a single-pass duct system (i.e., the main fresh air duct and the room fresh air duct 15), and collecting the stale air from each room into the living room corridor public space, and finally exhausting it to the outdoor ambient air. This constructs a whole-house bidirectional flow fresh air link that starts from and ends in the outdoor environment: "Ambient fresh air → Fresh air module → Main fresh air duct → Room fresh air duct 15 → Room air inlet damper → Room main space → Room air outlet damper (i.e., active / passive vertical duct) → Living room corridor public space → Exhaust module → Outdoor ambient air".

[0113] The whole-house fresh air system of this embodiment will be further described below: This embodiment adopts a single-pass fresh air supply duct whole-house bidirectional flow fresh air system, in which the main supply air duct and exhaust air duct do not intersect; the entire air path link is set with 3 power points; the exhaust module air intake is directly connected to the public space or connected to the public space through a section of exhaust air duct, preferably connected to the top space of the public space that is close to the return air vent of each room through a section of exhaust air duct; this section of exhaust air duct is short in length, large in diameter, and does not interfere with the main supply air duct.

[0114] This embodiment describes a whole-house bidirectional fresh air system using a single-pass fresh air supply duct. The main components of the airflow path are an active / passive vertical duct, a sleeve-type sliding damper 8, a fresh air module, and an exhaust module or a main air inlet / outlet module 4. The airflow path has several important nodes: a fresh air module, a room fresh air inlet, an active / passive vertical duct (room return air inlet), and an exhaust module. If the fresh air module and exhaust module are combined into a main air inlet / outlet module 4, then it has three important nodes: the main air inlet / outlet module 4, a room fresh air inlet, and an active / passive vertical duct (room return air inlet).

[0115] The following is a detailed explanation of these important nodes: ① Fresh air module The fresh air module in this embodiment is a fresh air module that performs air conditioning treatment on fresh air. It is the core component of a ductless exhaust and supply combined whole-house bidirectional flow fresh air system with supply as the main function. Specifically, it includes the structure and functions of fresh air filtration, fresh air dehumidification, and winter fresh air heating and humidification. It undertakes the task of regulating the freshness, cleanliness, and humidity of the air in the building space. The fresh air module pressurizes the air-conditioned fresh air and pressurizes it into the main fresh air duct, which flows into the room fresh air duct 15 that connects the fresh air inlets of each room. The fresh air is then delivered to each room (including public spaces) under positive pressure through the fresh air inlets. In this embodiment, the fresh air module is a fresh air module that performs air conditioning treatment on the fresh air. It can be set up independently, for example, independently set up on the south balcony of the apartment structure, and set far away from the exhaust module on the north side of the apartment structure; or it can be set up in combination with the exhaust module, for example, the exhaust module can be combined to form the main air intake and exhaust module 4 set up on the north balcony. This embodiment uses a total heat exchanger fresh air module with a finned tube heat exchanger. The total heat exchanger exchanges sensible and latent heat between the fresh and return air. The finned tube heat exchanger is connected to the refrigerant circuit of the air conditioning unit to further cool and dehumidify (heat up) the fresh air flow. Although this fresh air module still has problems such as low heat exchange intensity, easy freezing of hot fluid channels in cold seasons, and difficulty in cleaning air duct contamination, its advantages are also very obvious, such as long time on the market, mature product design, manufacturing and installation technology, long-term large-scale sales leading to customer accumulation, and a mature and stable component supply chain.

[0116] ② Room fresh air inlet (i.e., the room fresh air supply end mentioned above) In this embodiment, the room fresh air inlet structure controls the flow and direction of fresh air in the room; the opening and closing of the fresh air inlet structure in each room (including public spaces) and the flow control are of great significance for realizing large-volume fresh air replacement in different areas within the suite, positive and negative pressure control in different areas, and small-volume, high-pressure-difference fresh air replacement in enclosed spaces such as wardrobes, cabinets, shoe cabinets, and bathroom cabinets.

[0117] See Figure 24 and Figure 25 This embodiment of a sleeve-type sliding air valve 8 includes an inner cylinder 801, an outer cylinder 802, and a drive system.

[0118] The outer cylinder 802 includes a first overlapping area, a ventilation hole area, a second overlapping area, and an inner cylinder 801 dwelling area; the inner cylinder 801 includes a third overlapping area, a covering area, and a fourth overlapping area. The cross-sectional structure of the inner cylinder 801 and the outer cylinder 802 is the same, and can be one of the following: triangular, rectangular, grooved rectangular, cylindrical, semi-cylindrical, or isosceles trapezoidal.

[0119] Both the inner cylinder 801 and the outer cylinder 802 are columnar thin-walled structures, with the inner dimension of the outer cylinder 802 cross-section being slightly larger than the outer dimension of the inner cylinder 801 cross-section.

[0120] The drive system includes a drive motor 804 and a push rod 803. The drive motor 804 and the push rod 803 are located inside the inner cylinder 801. A crossbeam is provided at the front end of the push rod 803, and the crossbeam is perpendicular to the push rod 803. The crossbeam is symmetrically arranged with axial straight gaps connecting to the inner cylinder 801 wall. The connection point between the push rod 803 and the crossbeam is located at or near the geometric center point of the inner cylinder 801 wall.

[0121] When the sleeve-type sliding air valve 8 is opened in this embodiment, the drive motor 804 and the push rod 803 push the inner cylinder 801 to slide on the inner surface of the outer cylinder 802. The inner cylinder 801 partially or entirely slides to the dwell area. The ventilation hole area on the wall of the inner cylinder 801 partially or completely overlaps with the ventilation opening of the outer cylinder 802. Under the positive pressure of the air supply module and the air supply pipeline, fresh air flows into the room through the ventilation hole area of ​​the inner cylinder 801 and the outer cylinder 802. The stale air in the room then passes through the vertical air duct and is discharged into the public space, thus implementing fresh air replacement in the room.

[0122] When the sleeve-type sliding air valve 8 is closed in this embodiment, the drive motor 804 pushes the push rod 803 to push the inner cylinder 801 to slide on the inner surface of the outer cylinder 802. The inner cylinder 801 is completely separated from the residence area. The ventilation hole area on the wall of the inner cylinder 801 does not overlap with the ventilation opening of the outer cylinder 802. Under the positive pressure of the air supply module and the air supply pipeline, the cylinder wall of the inner cylinder 801 is pressed against the inner wall of the outer cylinder 802, the fresh air supply outlet of the room is closed, and the fresh air replacement of the room is terminated.

[0123] ③ Room return air vent In this embodiment, the room return air vent is the outlet for stale air from the room to enter the living room corridor public space, connecting the main room space with the public space outside the room. The structure of the room return air vent must meet the requirements of isolating the transmission of sound between the inside and outside of the room, minimizing airflow resistance, and coordinating the three-dimensional flow of fresh air in the public space and the room.

[0124] In this embodiment, the room return air vent can be an active / passive vertical air duct set on the side of the room door 6. For specific structure, please refer to the above embodiments.

[0125] In this embodiment, when the vertical duct 1 is running, under the combined drive of the positive pressure of the fresh air module and the negative pressure of the exhaust module, the second air outlet 102 directs the polluted airflow from the room to the public space. The polluted airflow avoids the main space in the lower part of the living room corridor and flows in a short-circuit manner close to the ceiling of the living room corridor towards the main return air outlet of the public space.

[0126] ④ Exhaust module In this embodiment, the exhaust module for external sewage air can be set up independently or combined with the fresh air module. The air intake of the exhaust module is directly connected to the public space or connected to the public space through a section of exhaust duct. Preferably, it is connected to the ceiling space of the restaurant that is close to the return air vents of each room through a section of exhaust duct. This section of exhaust duct is short in length and large in diameter, and does not interfere with the air supply duct. The exhaust module is responsible for collecting, pressurizing, and high-speed, long-range exhausting of the sewage air supplied from the return air vents 16 of each room and public space into the atmosphere. This embodiment uses the exhaust module driven by the backward centrifugal fan of Embodiment 3. The exhaust module is combined with the fresh air module to form an integrated main air intake and exhaust module 4 with a cross-flow exchanger as the core.

[0127] In this embodiment, a whole-house bidirectional fresh air system using a single-pass fresh air supply duct is operated as follows: The fresh air module of the main air inlet / outlet module 4 injects positive pressure fresh air after air conditioning treatment (cooling and dehumidifying in summer and heating and humidifying in winter) into the main fresh air duct, and then delivers it to the fresh air inlets of each room through several room fresh air ducts 15. After the airflow speed is adjusted by the sleeve-type sliding air valve 8 of the room fresh air inlet, it is injected into the main space of the room, driving the stale air in the room through the low-position return air inlet of the active / passive vertical air duct from bottom to top and into the top space of the living room corridor. The exhaust module of the main air inlet / outlet module 4 is connected to the main return air inlet through a section of exhaust duct. Negative pressure is generated in the top space of the dining room that is close to the return air inlets of each room. The negative pressure guides the stale air from the return air inlets 16 of each room and public space to converge close to the ceiling and face the main return air inlet. It flows into the exhaust duct and finally enters the exhaust module for pressurization, high-speed and long-range discharge into the atmosphere for diffusion and dilution. In this embodiment, the fresh air module and exhaust module in the main air intake and exhaust module 4 are combined by push and pull to construct a whole-house bidirectional flow fresh air open-loop link that starts from the outdoor environment and ends at the outdoor environment: "Ambient fresh air → Fresh air module of main air intake and exhaust module 4 → Main fresh air duct → Fresh air duct 15 of fresh air room → Room air inlet sleeve-type sliding air valve 8 → Main room space → Room air outlet (active / passive vertical air duct) → Living room corridor public space → Exhaust module of main air intake and exhaust module 4 → Outdoor ambient atmosphere".

[0128] The advantages of this embodiment of a whole-house bidirectional fresh air system using a single-pass fresh air supply duct are: ① Provide efficient, economical, and clean fresh air systems for building spaces This embodiment describes a whole-house bidirectional fresh air system using a single-pass fresh air supply duct to serve a group of rooms. It explores the potential of the "exhaust duct" in the living room and corridor public space, focusing on room ventilation. Fresh air is delivered to each room through the supply duct, and the exhaust air from each room is collected in the living room and corridor public space and finally extracted by the exhaust module and discharged to the outdoor environment. This constructs a whole-house bidirectional fresh air open-loop link that starts from and ends in the outdoor environment: "Ambient fresh air → Fresh air module of main air inlet and outlet module 4 → Main fresh air duct → Room fresh air duct 15 → Room air inlet damper → Room main space → Room air outlet damper → Living room and corridor public space → Exhaust module of main air inlet and outlet module 4 → Outdoor environment."

[0129] This embodiment solves the problems of ductless air supply and exhaust combined with exhaust-oriented bidirectional airflow fresh air system that delivers polluted air from noisy public spaces into rooms, and the potential for smoke and alcohol fumes from smoking, drinking, or eating hot pot in the living room and dining room of a residential unit to spread pollution to other rooms.

[0130] In this embodiment, the vertical air duct 1 in the room fresh air system serves as an airflow channel connecting the room and the public space. Its structural features, with its air inlet and outlet staggered and arranged in opposite directions, not only provide good sound insulation and promote the two-dimensional movement of fresh airflow on the horizontal plane, but also drive the vertical flow of fresh airflow through the low-intake and high-exhaust (or high-intake and low-exhaust) of its air inlet and outlet. This creates a three-dimensional flow field of fresh airflow in the room, eliminates blind spots in fresh air replacement, and improves fresh air replacement efficiency.

[0131] This embodiment only requires one set of fresh air supply ducts, which solves the problems of severe spatial interference between the two sets of fresh air supply and waste air exhaust ducts, as well as severe spatial interference between the two sets of supply and return air ducts and the building beams in the suspended ceiling. It reduces the construction difficulty and cost of the fresh air supply duct, increases the net height of the indoor space, and provides the most efficient, economical, clean and reliable fresh air replacement system for residential spaces.

[0132] ② Implement high-flow fresh air replacement The actual air volume of existing residential fresh air systems is mostly around 300m³. 3 With a capacity of less than 1 / h, replacing the air in a 200㎡ residential space once still requires 2 hours, even with a 100% fresh air-stale air replacement efficiency where fresh and stale air are completely unmixed. Furthermore, the airflow velocity in the existing φ110 main fresh air duct and main exhaust duct 5 is close to 10m / s, making the airflow resistance and noise unbearable. In March 2025, the Ministry of Housing and Urban-Rural Development issued the national standard "Residential Project Specification", which raised the residential floor height to "not less than 3m". This was to address the feeling of spatial oppression after the expansion of residential area and room opening, not to expand the vertical space of the ceiling where the supply and exhaust ducts 401 are installed. This embodiment utilizes the potential of the living room hallway exhaust duct to implement "ductless exhaust," constructing a whole-house bidirectional fresh air conditioning system with only one single-pass supply duct. The diameter (or rectangular duct cross-sectional area) of this single supply duct can be increased to approximately φ220, increasing the fresh air volume to 600m³. 3 When the airflow rate is above 100 m / h, the airflow velocity in the φ220 main fresh air duct is only 4.4 m / s. Compared with the existing fresh air system, this embodiment shows a significant reduction in airflow resistance and airflow noise under the condition of doubling the airflow. This is the first time that a large-diameter, high-flow-rate fresh air replacement system has been successfully implemented in the residential field. In this embodiment, it is sometimes necessary to add a section of exhaust duct before the air intake of the exhaust module, such as an exhaust duct that crosses the bathroom, but this section of exhaust duct does not interfere with the main air supply duct.

[0133] The main functions of the fresh air system in this embodiment are reflected in the following aspects: single-pass + bidirectional flow + dual power (or triple power if a fan is installed in the vertical duct) + three points + large air volume. It adopts a single-pass duct system (fresh air duct) to supply fresh air and extract stale air from the public space. Utilizing the public space as a stale air extraction channel, only one set of ductwork is needed in the ceiling to achieve bidirectional fresh air replacement. Compared to existing solutions, one less set of ductwork is required, thus further increasing the flow area of ​​the exhaust duct in the narrow ceiling space (significantly increasing the airflow at the same noise level). Combined with the fresh air power point and exhaust power point (dual power and two of these points), and the vertical duct as the intermediate point connecting the room and the public space, a large-volume fresh air replacement effect is ultimately achieved.

[0134] Example 6 See Figures 14-19 This embodiment provides a five-constant system for a group of rooms, which includes multiple rooms and a public space connected to each room, including the whole-house fresh air system in the above embodiment.

[0135] This embodiment uses a five-constant system to introduce fresh air into the room through a vertical duct 1, based on the following analysis and judgment regarding the indoor air quality indicators, their status, and significance: ① Humans live in the air enclosed by reinforced concrete structures, not in reinforced concrete itself; therefore, reinforced concrete technology is the foundation, platform, and prerequisite technology of construction, while only air quality technology is the soul of construction technology; as the speed-driven real estate development represented by third-generation housing comes to an end, a new era of defining architecture by air quality is about to arrive! ② In an era where air quality defines architecture, building technologies, including HVAC technology, will revolve around the five dimensions of air quality in building spaces: freshness, cleanliness, quietness, temperature, and humidity. Through mechanical ventilation, filtration, sound insulation, cooling, dehumidification, heating, and humidification, these five dimensions are improved to achieve "five constants" and become "five constant systems." In an era where air quality defines architecture, fresh air conditioning technology is no longer a supporting role or gimmick after building structural technology, building material technology, and building process technology, but rather the protagonist and leader of building technology.

[0136] The five constant systems in this embodiment serve a group of rooms. Taking the single-pass bidirectional flow whole-house fresh air system with a single exhaust pipe as an example, the living room and corridor public space replaces the supply air duct. Only one exhaust duct (exhaust module, main exhaust duct 5, room exhaust duct 3) is set up to replace the two sets of traditional supply air duct 401 exhaust duct to implement a "ductless supply and exhaust combined with exhaust as the main whole-house bidirectional flow fresh air system". In this embodiment, the main air supply duct and exhaust duct of the constant air system do not intersect; the entire air path link has only 2 power points; the air supply outlet of the fresh air module is directly connected to the public space or connected to the public space through a section of air supply duct 401, preferably connected to the top space of the public space that is close to the fresh air outlet of each room through a section of air supply duct 401; this section of air supply duct 401 is short in length and large in diameter, and does not interfere with the main exhaust duct.

[0137] In this embodiment of the five-constant system, the fresh air module of the whole-house fresh air system is configured to regulate the freshness, cleanliness, and humidity of the fresh air supplied to the public space. The five-constant system also includes a temperature control system, which is mainly responsible for controlling "quietness and temperature". The temperature control system can specifically be a radiant temperature control system.

[0138] The whole-house fresh air system of this embodiment will be described in detail below: The fresh air system of the five constant systems in this embodiment uses an active / passive vertical duct as the core node to construct a whole-house bidirectional flow fresh air link that starts from the outdoor environment and ends at the outdoor environment, with two wind path power points: "Ambient fresh air → Fresh air module → Living room corridor public space → Room vertical duct 1 → Room main space → Room exhaust duct 3 → Residential unit exhaust duct (main exhaust duct 5) → Exhaust module → Outdoor atmosphere".

[0139] The fresh air module of the five constant system fresh air system in this embodiment includes fresh air filtration, summer fresh air cooling and dehumidification, and winter fresh air heating and humidification units, which are responsible for regulating the freshness, cleanliness, temperature and humidity of the air in the building space. The exhaust module of the five constant air system fresh air system in this embodiment includes a centrifugal fan, inlet and outlet air chambers and exhaust pipes, which is responsible for pressurizing and accelerating the exhaust of the stale air sent from the return air vents and exhaust pipes (main exhaust pipe 5, room exhaust pipe 3) of each room into the atmosphere. In this embodiment, the fresh air module and the exhaust air module can be set relatively far apart, with one set on the south side, such as the south balcony, and the other set on the north side, such as the north balcony; or they can be set adjacent to each other, such as both set on the north balcony. Furthermore, in this embodiment, the fresh air module and the exhaust air module can be designed to complement each other to form a total air intake and exhaust module 4, that is, to integrate the two into a single module.

[0140] The main air intake and exhaust module 4 uses a dual-fan unit for fresh air intake and exhaust of polluted air, a dual-channel total heat exchanger core, and a finned tube heat exchanger connected to the refrigerant circuit of the air conditioning unit, located at the outlet of the fresh air channel. In summer, the fresh air flow passes through the total heat exchanger core, is cooled and dehumidified by the polluted air flow, and then enters the finned tube evaporator for further cooling and dehumidification. In winter, the fresh air flow passes through the total heat exchanger core to recover heat and moisture from the polluted air flow, and then enters the finned tube condenser for reheating. Finally, it is pressurized by the fresh air fan and sent into the interior space.

[0141] In this embodiment, the operation of the constant temperature system's fresh air system is divided into two stages: The first stage involves cleaning the living room corridor, which serves as the air supply channel. The fresh air module injects filtered and dehumidified fresh air into the living room corridor, while the exhaust module extracts stale air from the living room corridor through the living room return air vent (which can be connected to the main exhaust duct 5 via the living room exhaust duct) located far from the fresh air module's air supply vent. This stage first completes the fresh air replacement in the living room corridor.

[0142] In the second stage, fresh air replacement in each room occurs. The fresh air module continuously injects filtered and dehumidified fresh air into the living room corridor, establishing a slight positive pressure in the corridor. Simultaneously (or at staggered intervals), the exhaust module extracts stale air from each room, establishing a negative pressure state in each room. In this stage, the fresh air module and the exhaust module jointly establish a pressure difference between the first air outlet 101 and the second air outlet 102 of the vertical air duct 1. Driven by this pressure difference, the fresh air in the living room corridor flows from bottom to top through the vertical air duct 1 of each room, surging into the room space at a certain speed and direction angle, driving the stale air in the room into the return air duct and then into the atmosphere through the exhaust module, thus achieving fresh air replacement in all spaces within the apartment.

[0143] The control targets and responsibilities of the constant air system in this embodiment are mainly to stabilize the "freshness, cleanliness, and temperature and humidity" of the building space air. In particular, by precisely controlling the humidity of the building space, it is ensured that the dew point temperature of the indoor air is significantly lower than the surface temperature of the radiant cooling surface (mainly the surface of the capillary plaster under the ceiling) to prevent condensation from occurring on the radiant cooling surface (when the temperature of the radiant surface is lower than the "dew point temperature" of the surrounding air, water vapor in the air will condense into water on the radiant surface. The dew point temperature depends on the air temperature and relative humidity. The higher the humidity, the closer the dew point temperature is to the dry bulb temperature of the air, and the easier it is for condensation to occur).

[0144] Condensation is a critical and common problem for radiant temperature control systems in cooling mode. The most direct and serious impact is the direct damage to building structure and finishes. Since radiant temperature control units are typically installed under the ceiling, condensation can cause water stains, discoloration, and yellowing on walls and ceilings, affecting aesthetics. Furthermore, long-term or repeated condensation can cause blistering, powdering, and peeling of putty, latex paint, and other coatings. For radiant temperature control units installed under the floor, condensation can damage the insulation layer beneath the floor, rendering it ineffective. It can also cause wooden floors to swell, warp, and mold.

[0145] The radiative temperature control system of this embodiment will be described in detail below: The radiant temperature control system may specifically include an air conditioning water chiller (installed on an equipment platform) and several radiant temperature control units 7 connected to the air conditioning water chiller. The radiant temperature control units 7 may be installed under the ceiling and / or floor and / or side walls of public spaces and at least one room. The surface of the radiant temperature control unit 7 facing the room or living room is the aforementioned radiant cooling surface. The air conditioning water chiller supplies air conditioning water to the radiant temperature control units 7, supplying low-temperature water in summer and warm water in winter. Radiant cooling and heating of indoor air is achieved through the large-area surface of the radiant temperature control units 7. The radiant temperature control unit 7 may be a radiant panel or a capillary water circuit.

[0146] The air conditioning water chiller may specifically include a refrigerant circuit consisting of a compressor 1704, a condenser, a throttling valve, and an evaporator, a control system, and a hydraulic module. The hydraulic module provides the power for the circulation of chilled water between the air conditioning water chiller and the indoor fan coil unit, and controls the pressure, flow rate, and heat distribution of the chilled water circuit. In this embodiment, the capillary radiant cooling and heating system has a water supply temperature of 18-21℃ in summer, a higher evaporation pressure, a lower compression ratio, and a higher system energy efficiency. In winter, the water supply temperature is 30-35℃, the condensation pressure is lower, the compression ratio is lower, and the system energy efficiency is higher.

[0147] This embodiment, by setting up a radiant temperature control system, can eliminate all indoor air conditioning units in the rooms and regulate the indoor temperature of the house through radiant temperature control units 7 set in various rooms, public spaces and other areas.

[0148] Based on this, the outdoor air conditioning units that were originally located in each room can be merged and integrated into a water-cooled air conditioning unit located on the equipment platform. This water-cooled air conditioning unit includes a refrigerant system that exchanges heat through a refrigerant-water heat exchanger and a water system. The water system is configured to produce chilled or hot water and deliver it to the radiant temperature control unit, or deliver it to the radiant temperature control unit via a hydraulic module.

[0149] Furthermore, the air outlet of the refrigerant circuit corresponding to the refrigerant circuit of the air conditioner water chiller (i.e., the air outlet that passes through the finned tube heat exchanger connected to the refrigerant circuit system) can be set as a strip-shaped air outlet, which can then be coupled with the decorative structure (such as louvers) on the exterior facade of the equipment platform to construct a low-resistance air outlet for the external heat exchanger 1719 of the air conditioner water chiller that runs through the decorative facade of the building. This avoids the situation where the air outlet is obstructed by the decorative structure, resulting in difficulty in exhaust, increased exhaust static pressure, reduced air volume, and some exhaust airflow recirculation, severely degraded air conditioning performance, leading to a large number of residents forcibly removing louvers and damaging the building facade.

[0150] The advantages of this embodiment are: ① Provide efficient, economical, clean and reliable fresh air systems for building spaces The radiant cooling surface of the current five constant systems is usually set under the ceiling, which occupies the top space; the fresh air system is to deliver fresh air to each room by laying air supply ducts under the floor and setting fresh air inlets on the floor of each room; such a five constant system fresh air solution not only increases the construction difficulty and cost of fresh air supply ducts, but also makes it easy for pollutants to fall into the second air inlet 102 and to blow up dust on the floor. It also reduces the net height of the space and makes it difficult to find the location of the room's stale air return air inlet and exhaust duct. In this embodiment, the active / passive vertical air duct in the fresh air system serves as an airflow channel connecting the room and the public space. The staggered and opposite arrangement of the first air outlet 101 and the second air outlet 102 not only promotes the two-dimensional movement of the fresh air flow on the horizontal plane in shaping the airflow field of the room and the public space, but also drives the vertical flow of the fresh air flow through the low-intake and high-exhaust (or high-intake and low-exhaust) of the first air outlet 101 and the second air outlet 102. This constructs a three-dimensional flow field of fresh air flow in the interior space, eliminates blind spots in fresh air replacement, and improves the efficiency of fresh air replacement.

[0151] The fresh air system in this embodiment uses a fresh air module with pre-cooling and deep dehumidification technology as the starting point for whole-house fresh air. It constructs a single-pipe whole-house fresh air link that starts from and ends in the outdoor environment: "Ambient fresh air → Fresh air module → Living room corridor public space → Room fresh air inlet → Room main space → Room return air duct → Residential exhaust duct → Exhaust duct → Outdoor atmosphere". It develops the potential of the fresh air supply duct in the living room corridor to implement "ductless air supply". It only needs to set up one exhaust duct, which solves the serious problem of duct space interference between the fresh air supply and waste air return ducts in the ceiling, as well as the problem of the fresh air supply duct competing with the radiant temperature control unit for ceiling and floor surface resources, and the problem of pollutants falling into the fresh air outlet on the floor and blowing up the floating dust on the ground. It reduces the construction difficulty and cost of the fresh air supply duct, increases the net height of the space, and provides the most efficient, economical, clean and reliable fresh air link system for the five constant systems.

[0152] The highlight of this embodiment's fresh air dehumidification lies in the dehumidification technology and effect achieved by combining a cross-flow heat exchanger and an evaporator. This embodiment implements a three-stage heat exchange process for the high-humidity fresh airflow during the humid plum rain season: "inlet pre-cooling - deep dehumidification - outlet reheating." During operation, the high-humidity fresh air first passes through the hot fluid channel of the cross-flow heat exchanger and is cooled by the low-temperature outlet air of the evaporator in the cold fluid channel, achieving its first heat release and cooling, thus achieving "inlet pre-cooling." After "pre-cooling," the fresh air has released its sensible heat, its temperature has significantly decreased, and its relative humidity has significantly increased, approaching saturation and even releasing some moisture. Then, it is further cooled at a saturated or near-saturated high relative humidity. The fresh air enters the evaporator at a certain temperature, achieving a second heat release and dehumidification. This involves the evaporator absorbing almost all of its cooling capacity to absorb the latent heat of water vapor in the fresh air, thus achieving "deep dehumidification." After deep dehumidification, the fresh air passes through the cold aisle of the cross-flow heat exchanger and is "reheated" by the incoming air in the hot aisle, restoring the fresh air's "temperature" before being injected into the indoor space. This embodiment achieves both "deep dehumidification," reducing the absolute humidity and water vapor partial pressure of the indoor space, and maintaining stable indoor temperature. It overcomes the shortcomings of ordinary air conditioners, which require simultaneous cooling and dehumidification, and achieves the dehumidification and heating effect of a complex three-pipe air conditioner.

[0153] ② Implement high-flow fresh air replacement The actual air volume of existing residential fresh air systems is mostly around 300m³. 3 For air exchange and replacement of the interior space of a 200㎡ residential building, even with a 100% fresh air and stale air exchange efficiency where fresh and stale air are completely unmixed, it still takes 2 hours. Furthermore, at this time, the airflow velocity in the φ110 main exhaust duct 5 is close to 10m / s, and the airflow resistance and noise are unbearable. This embodiment utilizes the potential of the fresh air supply duct in the living room corridor to implement "ductless air supply," constructing a whole-house bidirectional fresh air system with only one exhaust duct. The exhaust duct diameter in this embodiment can be increased to over φ220; the fresh air volume in this embodiment is 600m³. 3 Even with an airflow rate of over 1 h, the airflow velocity in the φ220 main exhaust duct 5 is only 4.4 m / s. Compared to the existing fresh air system, this embodiment reduces airflow resistance and noise by more than 50% under the condition of doubling the airflow, enabling the large-flow fresh air replacement of the five constant systems to be implemented. This embodiment may sometimes require the addition of a section of supply air duct 401, such as the supply air duct that crosses the bathroom, but this section of the main fresh air duct does not cause spatial interference with the main exhaust duct.

[0154] ③ Provides a wider range of surface source options for radiative cooling. This embodiment only requires one exhaust duct to solve the problem of bidirectional fresh air replacement throughout the house, eliminates the construction difficulty and cost of fresh air supply ducts in traditional five constant systems, increases the net height of the space, provides the most efficient, economical, clean and reliable fresh air link system for the five constant systems, and frees up floor space. In this embodiment, radiant capillary tubes can be laid under the floor for winter heating, providing a wider range of surface source options for radiant cooling and heating. The floor radiant capillary tubes and the ceiling radiant capillary tubes can be used together and complement each other: in summer, ceiling radiant cooling is the main method, and in winter, floor radiant heating is the main method. This combination can bring out the greatest advantages and effects of combining radiant cooling technology with the natural convection of the building space.

[0155] ④ Complementary capabilities to radiant refrigeration systems While capillary radiant cooling (heating) systems have the advantages of being noiseless, highly energy-efficient, and having high spatial uniformity, they also have serious problems such as high thermal inertia and long start-up time. In this embodiment, the high-efficiency, high-volume fresh air system complements the capillary radiant cooling (heating) system. Users can use the fresh air system in this embodiment to quickly reach the target values ​​for indoor space temperature, humidity, cleanliness, and freshness to achieve comfort, while using the capillary radiant cooling (heating) system to adjust the temperature of the building envelope, such as walls, floors, and ceilings. After the building envelope temperature is adjusted to the desired level, the fresh air system stops operating or operates intermittently.

[0156] ⑤ The technological ideal of "defining architecture based on air quality" has been realized. Reinforced concrete technology is the foundational, platform, and prerequisite technology for construction. However, humans work and live in the air enclosed by reinforced concrete, not on reinforced concrete itself. Therefore, only air quality technology is the soul of building technology. This embodiment significantly improves the five-dimensional (five constants) quality of air freshness, cleanliness, quietness, temperature, and humidity in building spaces, transforming building fresh air technology from a supporting role in building structure technology, building material technology, and building process technology into the protagonist and leader of building technology, realizing the technological ideal of "defining buildings with air quality".

[0157] Example 7 This embodiment provides a five-constant system based on the above embodiment eight. The difference is that the temperature control system is a forced convection temperature control system. The forced convection temperature control system includes an air conditioning unit and several fan coil units connected to the water circuit or refrigerant circuit of the air conditioning unit. The fan coil units are installed below the ceiling of the public space and at least one room.

[0158] The fan coil unit arranged in the room is called the room fan coil unit. Therefore, the distance between the return air vent of the room fan coil unit and the second air vent 102 of the vertical air duct 1 can be less than the distance between the second air vent 102 of the vertical air duct 1 and the power point for exhausting the waste air.

[0159] This means that by using room fan coil units to create a secondary negative pressure (the lowest pressure zone in the room), a greater pressure difference is created between the public space and the room, so that fresh air can be more smoothly introduced into the room for fresh air replacement.

[0160] In this embodiment, the fresh air module continuously injects filtered and dehumidified fresh air into the living room corridor, establishing a slight positive pressure in the corridor. Simultaneously (or at staggered times), the exhaust module extracts stale air from each room, establishing a negative pressure state (primary negative pressure) in the room. The fans of the room fan coil units (indoor units of the residential central air conditioning system) operate in conjunction with the fans of the main exhaust module, generating an even lower negative pressure at the fresh air inlet of the room fan coil units (secondary negative pressure, the lowest pressure zone in the room). The fresh air module, exhaust module, and room fan coil units together establish a pressure difference between the first air inlet 101 and the second air inlet 102 of the room's vertical air duct. Driven by this pressure difference, the fresh air in the living room corridor flows from bottom to top through the room's vertical air duct, rushing into the room space at a defined speed and direction angle, pointing towards the air inlet of the room fan coil units, being sucked in and pressurized by the fan coil units, and blown towards the exterior wall and windows. It is then reflected by the exterior wall and windows into the main space of the room, driving the stale air in the room into the return air duct and flowing into the main exhaust module to be discharged into the atmosphere, thus achieving fresh air replacement in the room.

[0161] In this embodiment, when implementing fresh air replacement, the secondary negative pressure of the room's fan coil unit intake is utilized to construct a whole-house bidirectional flow fresh air system with three power points. This forms a whole-house fresh air link that starts from and ends in the outdoor environment, namely, "ambient fresh air → main fresh air module → living room corridor public space → vertical air duct → room fan coil unit secondary negative pressure deep intake and high exhaust → main room space → room exhaust duct → interior exhaust duct (main exhaust duct) → main exhaust module → outdoor atmosphere". This whole-house bidirectional flow fresh air link develops the potential of the existing central air conditioning fan coil unit in the room to guide fresh air and further improves the efficiency of room fresh air replacement.

[0162] Example 8 The current status of existing residential cabinets is analyzed and assessed as follows: ① Enclosed storage systems such as wardrobes, cabinets, shoe cabinets, and bathroom cabinets in residential spaces are havens for dust, mold, and microorganisms, and are also accumulation sites for formaldehyde and benzene compounds. Only by solving the problems of ventilation, dehumidification, mold prevention, and formaldehyde and benzene compound discharge in these enclosed storage systems can the main sources of pollution in the main space of the residence be eradicated. ②Because enclosed storage spaces such as wardrobes, cabinets, shoe cabinets, and bathroom cabinets are distributed in a dispersed manner within a residence, it is impossible to construct an external ventilation system for each one independently. Instead, it is necessary to rely on a two-way fresh air replacement system throughout the entire residence. ③ Enclosed storage spaces such as wardrobes, cabinets, shoe cabinets, and bathroom cabinets have small volumes and are often filled with multiple layers of items. They are not suitable for large-volume fresh air replacement, but are suitable for micro-circulation ventilation with multiple micro-holes for fresh air intake and multiple micro-holes for stale air exhaust.

[0163] Based on the above analysis, it can be seen that the five constant systems need to focus on ventilation, dehumidification, mold prevention, and the removal of formaldehyde and benzene compounds within the residential storage system. However, it is difficult to meet the requirements of both micro-ventilation with a large pressure difference and small air volume in enclosed indoor storage systems such as wardrobes, cabinets, shoe cabinets, and bathroom cabinets to achieve dehumidification, mold prevention, and removal of formaldehyde and benzene compounds, and large-volume fresh air replacement in the interior space to achieve the five constant requirements of constant temperature, constant humidity, constant oxygen, constant cleanliness, and constant quietness. The current residential ventilation system is difficult to match such "both" requirements. This embodiment requires a large-scale innovation in the main components and system integration of the ventilation system.

[0164] See Figures 19-22 Therefore, this embodiment provides a five-constant system based on the above embodiments. The five-constant system also includes a storage subsystem micro-ventilation structure, which includes at least one cabinet exhaust pipe 10 connected to the exhaust module and a waste air collection pipe 9 arranged in the corresponding cabinet. The return air end of the cabinet exhaust pipe 10 is connected to the waste air collection pipe 9. A plurality of cabinet return air inlets 901 are arranged at intervals on the waste air collection pipe 9. The cabinet is provided with a plurality of micro-perforated fresh air inlets 11 or slotted fresh air inlets away from the waste air collection pipe 9.

[0165] The micro-ventilation structure of the storage subsystem in this embodiment is a parallel bypass of the room's fresh air system. It is linked with the whole-house exhaust system to drive the discharge of formaldehyde and benzene pollutants accumulated in enclosed spaces such as wardrobes, cabinets, shoe cabinets, and bathroom cabinets. It also effectively reduces and controls the humidity in these enclosed spaces, prevents the proliferation of mold, bacteria, microorganisms, and bedbugs, and eliminates blind spots in the "freshness" and "cleanliness" of the room.

[0166] This embodiment adopts a micro-ventilation structure for residential storage systems such as wardrobes, cabinets, shoe cabinets, and bathroom cabinets. This includes a partition 12 with through holes and / or slits inside the cabinet, and vertically arranged slits or multiple micro-holes for supplying fresh air and slits or multiple micro-holes for discharging stale air.

[0167] More specifically, in this embodiment, for a wall-mounted wardrobe made of isotropic plywood particleboard, the bottom of the wardrobe (lower edge of the cabinet door or bottom panel) has several micro-holes of about φ3 (i.e., micro-hole fresh air inlets 11, specifically φ2-φ4) to connect the wardrobe interior with the indoor space. A φ30 internal waste air collection pipe 9 is horizontally installed at the top of the wardrobe interior, or a duct valve may also be provided; the waste air collection pipe 9 also has several micro-holes of about φ3 (i.e., cabinet return air inlets 901, specifically φ2-φ4) on its wall. When the waste air collection pipe 9 connects... The exhaust duct of the residential unit (i.e., the main exhaust duct 5, which opens synchronously if a duct valve is installed) is connected to the air duct of the cabinet (i.e., the main exhaust duct 5). Under the negative pressure generated by the return air vent 901 of the cabinet in the dirty air collection duct 9, the dry airflow in the indoor space is driven from bottom to top through the multiple layers of perforated and / or slit partitions 12 in the clothing storage space inside the cabinet. This drives the discharge of formaldehyde and benzene pollutants accumulated in the wardrobe space, and effectively reduces the humidity inside the wardrobe space, preventing the growth of mold and bacteria on clothing, leather goods, and cabinet wood boards, thereby eliminating the wardrobe blind spot in terms of freshness and cleanliness in the room.

[0168] When the micro-ventilation structure of the storage subsystem in this embodiment is running, the air duct valves open. Under normal pressure differential conditions, such as when the exhaust module of a whole-house bidirectional fresh air system is pulled out and the return air vent inside the cabinet is at a negative pressure of approximately -70 Pa, this normal pressure differential can pull the main space of the room outside the cabinet by 1 meter. 3 A fresh airflow of / h level flows into the cabinet. The fresh airflow passes through multiple micro-holes for supplying fresh air and multiple micro-holes for discharging stale air, which are vertically arranged and relatively far apart inside the cabinet. The fresh airflow passes through multiple layers of partitions 12 with through holes and / or slots inside the cabinet, slowly releasing and continuously accumulating formaldehyde and benzene pollutants from the various particleboard and plywood that make up the cabinet, and reducing the humidity inside the cabinet to prevent mold.

[0169] In this embodiment, the fresh air module can be a deep dehumidification fresh air module with pre-cooled intake air. The deep dehumidified fresh air is sent into the storage space to improve the dryness of the storage space. Specifically, the fresh air module is equipped with a cross-flow heat exchanger. The two channels of the cross-flow heat exchanger are respectively connected to the second air outlet 102 and the first air outlet 101 of the evaporator. In summer mode, for the high humidity climate of summer during the plum rain season, the high humidity fresh air in the environment is cooled down by the low temperature exhaust air of the finned tube heat exchanger assembly evaporator in the cold fluid channel of the cross-flow heat exchanger, realizing its first heat release and cooling, which is called "intake air pre-cooling". After "pre-cooling", the sensible heat of the fresh air has been released, the temperature has been significantly reduced, and the relative humidity has been significantly increased, approaching saturation and even releasing some moisture. It then enters the evaporator in a saturated or near-saturated high relative humidity state, realizing the second heat release and cooling, that is, using almost all of the evaporator's cooling capacity to absorb the latent heat of water vapor in the fresh air to achieve "deep dehumidification" of the fresh air. After that, it is injected into the public space.

[0170] The micro-ventilation structure of the storage subsystem in this embodiment sets up a special operating mode for exhausting polluted air from enclosed spaces such as wardrobes, in addition to the winter and summer operation modes of the fresh air conditioning system.

[0171] The micro-ventilation structure of this storage system serves as a parallel bypass for the room's fresh air system. When it operates in the mode of exhausting polluted air from enclosed spaces such as wardrobes, the air valves at the return air vents of all rooms (including public spaces) are closed (if there are pipe valves on the micro-ventilation structure, these valves are opened). The operating point of the exhaust fan on the QP diagram moves to the upper left, and the main exhaust system operates and enters a state of high pressure difference and low air volume. The negative pressure generated by connecting the polluted air collection pipes 9 inside each cabinet pulls the formaldehyde and benzene pollutants accumulated in enclosed spaces such as wardrobes, cabinets, shoe cabinets, and bathroom cabinets through the polluted air collection pipes 9, the main exhaust pipe 5, and the exhaust module, where they are pressurized and accelerated to be discharged to the outdoor environment.

[0172] The advantages of this embodiment are: ① Eliminates blind spots in the freshness and cleanliness of indoor spaces This embodiment utilizes the combined operation of the intake pre-cooling deep dehumidification fresh air module, air valve, main exhaust duct 5, exhaust module, and micro-ventilation structure (cabinet exhaust duct 10, waste air collection duct 9, and micro-perforated fresh air inlets 11) in the whole-house bidirectional flow fresh air system. Based on the extremely low leakage rate of the air valve and the high-efficiency exhaust of the centrifugal fan in the exhaust module, a pressure difference (approximately 70 Pa) significantly greater than the room's fresh air replacement is applied to the micro-ventilation structure of the closed spaces such as wardrobes, cabinets, shoe cabinets, and bathroom cabinets. This drives the discharge of formaldehyde and benzene pollutants stored in the wardrobes and other spaces, and the deep dehumidification fresh air effectively reduces the humidity inside the wardrobes and other spaces, preventing the growth of mold and bacteria on clothing, leather goods, cabinet boards, and other items. It eliminates blind spots in the "freshness" and "cleanliness" of the indoor space, thereby significantly improving the five constant qualities of the indoor space: air freshness, cleanliness, quietness, temperature, and humidity.

[0173] ② Provide the most efficient, economical, clean, and reliable fresh air system for building spaces. The radiant cooling surface of the current five constant systems is usually set under the ceiling, which occupies the top space; the fresh air system is to deliver fresh air to each room by laying air supply ducts under the floor and setting fresh air inlets on the floor of each room; such a five constant system fresh air solution not only increases the construction difficulty and cost of fresh air supply ducts, but also makes it easy for pollutants to fall into the second air inlet 102 and to blow up dust on the floor. It also reduces the net height of the space and makes it difficult to find the location of the room's stale air return air inlet and exhaust duct. The fresh air system in this embodiment uses a fresh air module with pre-cooling and deep dehumidification technology as the starting point for whole-house fresh air. It constructs a whole-house fresh air link that starts from and ends in the outdoor environment: "Ambient fresh air → Fresh air module → Living room corridor public space → Room fresh air inlet → Room main space → Room exhaust duct 3 → Residential unit exhaust duct (main exhaust duct 5) → Exhaust module → Outdoor atmosphere". It develops the potential of the fresh air supply duct in the living room corridor to implement "ductless air supply". It only needs to set up one exhaust duct, which solves the serious problem of duct space interference between the fresh air supply and waste air return ducts in the ceiling, as well as the problem of the fresh air supply duct competing with the radiant temperature control unit 7 for ceiling and floor surface resources, and the problem of pollutants falling into the second fresh air inlet 102 on the floor and blowing up the floating dust on the ground. It reduces the construction difficulty and cost of the fresh air supply duct, increases the net height of the space, and provides the most efficient, economical, clean and reliable fresh air link system for the five constant systems.

[0174] ③ Provides a wider range of surface source options for radiative cooling. This embodiment only requires one exhaust duct to solve the problem of bidirectional fresh air replacement throughout the house, eliminates the construction difficulty and cost of fresh air supply ducts in traditional five constant systems, increases the net height of the space, provides the most efficient, economical, clean and reliable fresh air link system for the five constant systems, and frees up floor space. In this embodiment, radiant capillary tubes can be laid under the floor for winter heating, providing a wider range of surface source options for radiant cooling and heating. The floor radiant capillary tubes and the ceiling radiant capillary tubes can be used together and complement each other: in summer, ceiling radiant cooling is the main method, and in winter, floor radiant heating is the main method. This combination can bring out the greatest advantages and effects of combining radiant cooling technology with the natural convection of the building space.

[0175] ④ The technological ideal of "defining architecture based on air quality" has been realized. Reinforced concrete technology is the foundational, platform, and prerequisite technology for construction, but only air quality technology is the soul of building technology. This embodiment significantly improves the five-dimensional (five constants) quality of air freshness, cleanliness, quietness, temperature, and humidity in building spaces, transforming building fresh air technology from a supporting role in building structure technology, building material technology, and building process technology into the protagonist and leader of building technology, realizing the technological ideal of "defining buildings with air quality".

[0176] Example 9 See Figure 27 , Figure 28 This embodiment further provides a fresh air module 17 based on the above embodiments. The fresh air module 17 also includes a second finned tube heat exchanger 1715, which is arranged at the output end of the second flow channel. This forms a three-pipe inlet pre-cooling, deep dehumidification, and outlet air heating fresh air module 17. Fresh air is delivered to each room through the air supply duct, and exhaust air from each room is collected in the living room corridor and finally discharged into the ambient atmosphere. This constructs a two-way flow fresh air link for the room group, starting from and ending in the environment: "Ambient fresh air → Fresh air module 17 → Fresh air supply main pipeline → Fresh air supply branch pipeline → Room and storage system inlet air damper → Room and storage system main space → Room outlet air damper → Room group corridor → Exhaust module → Ambient atmosphere". Furthermore, only one single-pass air supply duct is used to replace the traditional two sets of ducts (air supply and exhaust ducts) to implement a "ductless exhaust combined with supply and exhaust, with supply as the main component, two-way flow fresh air system for the room group". This embodiment describes a three-pipe inlet pre-cooling deep dehumidification outlet heating fresh air module 17, which uses a total inlet and outlet air module 4. Structurally, it is centered on a cross-flow heat exchanger 1701, combined with a heat exchanger assembly with double finned tubes and a centrifugal fan to construct a fresh air module 17 unit with four heat exchange processes: air-to-air and air-to-refrigerant. An exhaust module is then added to form the total inlet and outlet air module 4. It has three fresh air operation modes: rainy season mode, summer mode, and winter mode, as well as an internal circulation air conditioning operation mode.

[0177] The fresh air module 17 in this embodiment has a fresh air path within the module unit that, along the direction of fresh air flow, is composed of a fresh air inlet, a first flow channel, an intermediate flow channel 1703, a first finned tube heat exchanger 1702, a second flow channel, a second finned tube heat exchanger 1715, a centrifugal fan, a humidifier outlet, and a fresh air outlet. The cross-flow heat exchanger 1701 can be formed by overlapping and interlocking edges of several thermally conductive thin sheets to create several slit-type airflow channels. The slit-type airflow channels include a second flow channel and a first flow channel, which are arranged alternately, and the airflow directions in the second flow channel and the first flow channel are staggered. The component sheets of the cross-flow heat exchanger 1701 include metal foil or plastic sheets, which can efficiently exchange heat while blocking the lateral migration of polluted air components to fresh air. Preferably, aluminum foil with a thickness of mm is used.

[0178] The first finned tube heat exchanger 1702 and the second finned tube heat exchanger 1715 of the finned tube assembly each have their own lotus head 1723, manifold 1724 and electronic expansion valve, and are two independent terminals of the refrigeration and air conditioning system that can independently control the refrigerant flow.

[0179] The difference between the fresh air module 17 with three-pipe air intake pre-cooling, deep dehumidification, and outlet air heating in this embodiment is: This embodiment is designed for low-temperature and high-humidity weather, such as the humid spring weather in the southern coastal areas. It introduces three-pipe technology into the fresh air conditioning module unit to input high-temperature and low-humidity fresh air into the building space, and heats and dehumidifies the indoor space and objects.

[0180] This embodiment describes a three-pipe intake pre-cooling deep dehumidification and outlet air heating fresh air system, which includes two parts: a three-pipe air conditioning unit and a three-pipe fresh air conditioning module unit. These two parts are connected to form a unified three-pipe refrigeration air conditioning fresh air system by three metal pipes: liquid pipe, gas pipe and high and low pressure pipe, which are connected to the refrigerant circuit. The structural features of this embodiment of a three-pipe inlet pre-cooling deep dehumidification outlet heating fresh air system are as follows: a compressor 1716 is equipped with two four-way valves. The first four-way valve 1717 connects the compressor 1716 inlet, outlet, external heat exchanger 1722, first electronic expansion valve 1719, second electronic expansion valve 1720, third electronic expansion valve 1721, first finned tube heat exchanger 1702, and second finned tube heat exchanger 1715. The second four-way valve 1718 is connected in parallel with the first four-way valve 1717 to the compressor 1716 inlet, outlet, third electronic expansion valve 1721, and second finned tube heat exchanger 1715. It has three operating modes: first finned tube heat exchanger 1702 cooling, second finned tube heat exchanger 1715 cooling, first finned tube heat exchanger 1702 heating, second finned tube heat exchanger 1715 heating, and first finned tube heat exchanger 1702 cooling, second finned tube heat exchanger 1715 heating.

[0181] In the third operating mode, where the first finned tube heat exchanger 1702 provides cooling and the second finned tube heat exchanger 1715 provides heating, the compressor 1716, the first four-way valve 1717, the second four-way valve 1718, the first electronic expansion valve 1719, the second electronic expansion valve 1720, the third electronic expansion valve 1721, the first finned tube heat exchanger 1702, and the second finned tube heat exchanger 1715 in the refrigerant circuit are linked together. Furthermore, they coordinate with the cross-flow heat exchanger 1701, the first finned tube heat exchanger 1702, the second finned tube heat exchanger 1715, and the centrifugal fan unit in the air circuit to achieve the transfer of the latent heat of water vapor in the fresh airflow to the sensible heat of the air. From the refrigerant side, the high-temperature and high-pressure refrigerant gas discharged from the compressor 1716 flows through the second four-way valve 1718 and enters the high-low pressure pipe, which is then sent to the second finned tube heat exchanger 1715. In the second finned tube heat exchanger 1715, the refrigerant gas releases heat and condenses into liquid. The refrigerant condensate flows through the third electronic expansion valve 1721 and the second electronic expansion valve 1720, and enters the first finned tube heat exchanger 1702, where it absorbs heat and vaporizes into low-pressure refrigerant gas. This gas flows through the gas pipe back to the first four-way valve 1717 and then back to the suction port of the compressor 1716. It is then drawn into the compressor 1716, pressurized, and discharged to the second four-way valve 1718 and the high-low pressure pipe to begin the next cycle. From the airflow perspective, during fresh air dehumidification and heating operation, the fresh air flow rotates clockwise as shown in the diagram. The low-temperature, high-humidity fresh air first passes through the first channel of the cross-flow heat exchanger 1701 and is cooled by the low-temperature outlet air of the evaporator (first finned tube heat exchanger 1702) in the second channel, achieving its first heat release and cooling, known as "inlet pre-cooling." After "pre-cooling," the fresh air has released its sensible heat, its temperature has significantly decreased, and its relative humidity has significantly increased, approaching saturation and even releasing some moisture. It then passes through the connecting air duct into the evaporator in a saturated or near-saturated high relative humidity state, achieving a second heat release and dehumidification, where almost all of the evaporator's cooling capacity is absorbed. The latent heat of water vapor in the fresh air achieves "deep dehumidification"; after deep dehumidification, the fresh air passes through the cold aisle of the cross-flow heat exchanger 1701 and is "reheated" by the incoming air in the hot aisle, thus restoring the temperature of the fresh air. It then enters the condenser (second finned tube heat exchanger 1715) for further heating. In the air path of the main air inlet and outlet module 4, the fresh air undergoes four heat exchanges: pre-cooling, cooling and dehumidification, reheating, and heating. This achieves energy coupling between the refrigerant path and the air path, and realizes the transfer of the "latent heat" of water vapor in the fresh air flow to the "sensible heat" of the fresh air, resulting in high-temperature and low-humidity fresh air. Finally, it is injected into the low-temperature and high-humidity indoor space under the scenario of humid weather. In this embodiment, the fresh air module 17 performs one pre-cooling, one deep dehumidification, one reheating, and one heating on the fresh air entering the room group. This achieves energy coupling between the refrigerant circuit and the air circuit of the fresh air conditioning system, and realizes the transfer of the "latent heat" of water vapor in the fresh air to the "sensible heat" of the fresh air. Through a total of four heat exchanges in the air circuit of the main air intake and exhaust module 4, this embodiment generates high-temperature, low-humidity, and dry fresh air that is injected into the indoor space of the room group and the storage system of each room. This heats and dehumidifies the indoor space and the objects in the storage system under the humid weather conditions, reducing the absolute humidity and water vapor partial pressure of the indoor space and the storage system, and improving the temperature and comfort of the indoor space. This overcomes the defect of ordinary air conditioners that can only achieve dehumidification by cooling, which means that "cooling and dehumidification must be done in parallel". This fundamentally solves the problem of low temperature and high humidity in indoor spaces under meteorological conditions such as the humid weather.

[0182] Example 10 See Figures 30-32 This embodiment provides a residential energy center 18 based on the above embodiments, including an air conditioning unit 22 and a fresh air conditioning module as described in the above embodiments.

[0183] The air conditioning fresh air module serves as the main air intake and exhaust unit 21 of the residence. The air conditioning unit 22 is arranged above or below the main air intake and exhaust unit 21 (preferably, the air conditioning unit 22 is positioned below). The refrigerant circuit containing the second heat exchange module (first finned tube heat exchanger 1702) of the main air intake and exhaust unit 21 is the first fresh air refrigerant circuit (including components such as the fresh air compressor 28). The refrigerant circuit containing the third heat exchange module (second finned tube heat exchanger 1715) of the main air intake and exhaust unit 21 is the second fresh air refrigerant circuit (including components such as the fresh air compressor 28). At least a portion of the first fresh air refrigerant circuit and / or at least a portion of the second fresh air refrigerant circuit share the external heat exchanger fin assembly of the air conditioning refrigerant circuit (including components such as the air conditioning compressor 29) of the air conditioning unit 22. That is, the second heat exchange module and / or the third heat exchange module of the main air intake and exhaust unit 21 (fresh air module) serve as indoor units, and the portion of the first fresh air refrigerant circuit and / or the second fresh air refrigerant circuit located in the external heat exchanger fin assembly becomes the outdoor unit.

[0184] Alternatively, the refrigerant circuit where the second and third heat exchange modules of the main air intake and exhaust unit 21 are located is the fresh air refrigerant circuit (i.e., the two finned tube heat exchangers are located in the same refrigerant circuit), and at least part of the fresh air refrigerant circuit shares the external heat exchanger fin group of the air conditioning unit 22.

[0185] In this embodiment, a single or multiple rows of finned tubes are added to the external heat exchanger assembly of the air conditioning water unit as the external finned tube heat exchanger of the main air inlet and outlet unit 21 located at the top (i.e., the external heat exchanger 1722 in the above embodiment eleven), providing the main air inlet and outlet unit 21 with cooling and heat dissipation or heat pump heat absorption functions during internal circulation air conditioning operation; in the V-shaped finned tube external heat exchanger assembly of the air conditioning unit 22 in this embodiment, two sets of independent pipelines are set up, which are respectively connected to the central air conditioning (the air conditioning refrigerant circuit used to cooperate with the hydraulic module to supply air conditioning water) and the second heat exchange module and / or the third heat exchange module of the main air inlet and outlet unit 21, which are two independent refrigeration systems; the refrigerant pipelines of the two refrigeration systems (fresh air external heat exchanger refrigerant pipe 26, air conditioning refrigerant pipe 27) are set on the same fin group (i.e., external heat exchanger fin group), and can occupy the heat exchange area of ​​the other fin through the longitudinal and transverse thermal bridges of the fin group.

[0186] Furthermore, the residential energy center 18 in this embodiment may also include an air source water heater tank 19, and the method for producing domestic hot water is as follows: The air conditioning unit 22 can be an air conditioning water chiller, which is located below the main air inlet and outlet unit 21. The air conditioning water chiller is configured to supply air conditioning water to the radiant temperature control unit (capillary water circuit or radiant panel) or fan coil unit in the residence, and to supply high-temperature circulating water to the water tank heat exchanger in the air source water heater tank 19. That is, the air conditioning water chiller water circuit is connected to the indoor fan coil water circuit or the capillary water circuit of the radiant cooling and heating system; and, in this embodiment, the air conditioning water chiller produces secondary hot water in the water tank by producing high-temperature circulating water for domestic hot water; in this embodiment, the air conditioning water chiller can also run in reverse, absorbing a small amount of heat from the water tank of the water heater, and then pumping it in reverse into the external heat exchanger assembly, using the fin thermal bridge to melt the frost between the fins of the external heat exchanger of the central air conditioning unit 22.

[0187] Alternatively, the air conditioner water heater is configured to supply refrigerant to the water tank heat exchanger inside the air source water heater's water tank 19. That is, in addition to the air conditioner refrigerant heat exchanger for forming the air conditioner water, the air conditioner water heater's refrigerant circuit also has an additional air source water heater refrigerant heat exchanger, which directly outputs refrigerant to the aforementioned water tank heat exchanger. The refrigerant then exchanges heat with the water in the water tank through the heat exchanger to produce domestic hot water.

[0188] In other embodiments, the production of hot water in the air source water heater tank 19 can also adopt another approach, namely, the air conditioner water heater includes an air conditioner water heater refrigerant circuit and an air source water heater refrigerant circuit, and the air conditioner water heater refrigerant circuit and the air source water heater refrigerant circuit share an external heat exchanger fin assembly. In general, the external heat exchanger fin assembly is equipped with three independent refrigerant circuits (namely, the air conditioner water heater refrigerant circuit, the air source water heater refrigerant circuit, and the fresh air refrigerant circuit), that is, the external heat exchanger fin assembly is respectively equipped with a fresh air external heat exchanger refrigerant pipe 26, an air conditioner refrigerant pipe 27, and an air source water heater refrigerant pipe. In this case, the overall equipment cavity is also equipped with three compressors, namely, a fresh air compressor 28 (located in the fresh air refrigerant circuit where the second heat exchange module and / or the third heat exchange module are located), an air conditioner compressor 29, and an air source water heater compressor.

[0189] In other embodiments, the air conditioning unit 22 may also be an air conditioning refrigerant generator, in which case a fan coil unit is used in the residence instead of a radiant temperature control unit. The air conditioning refrigerant generator is configured to supply refrigerant to the fan coil unit in the residence to adjust the indoor temperature through the air conditioning air output by the fan coil unit. In addition, the air conditioning refrigerant generator is configured to supply refrigerant to the water tank heat exchanger in the water tank 19 of the air source water heater, so that the refrigerant exchanges heat with the water in the water tank through the heat exchanger to produce domestic hot water.

[0190] In this embodiment, the residential energy center is centered on the integrated system of three refrigeration systems—fresh air, air conditioning, and heat pump water heating—on the residential equipment platform. It uniformly integrates the air conditioning unit 22 (which can be a central air conditioning unit), the heat pump water heater unit, and auxiliary components. Figures 1-11 And the three-pipe fresh air unit shown in 27 / 28 promotes the integration of the support structure of the three refrigeration systems; and considering that there are significant differences in the operating conditions of the three refrigeration systems of residential fresh air, air conditioning and hot water, and that the operating range of a single compressor is difficult to meet the actual operating conditions of the three systems, the energy coupling of the three systems is appropriately promoted to facilitate the defrosting of the heat source of the heat pump air conditioner's external heat exchanger water tank in winter. This embodiment constructs a centralized and unified residential energy center 18 structure and energy field to comprehensively solve the operation problems of energy systems such as home ventilation, air conditioning, hot water, and kitchen exhaust, and meet the needs of comfort and greening.

[0191] In this embodiment, the residential energy center 18 has an integrated fresh air, air conditioning, heat pump, and hot water unit structure, which consists of two sections, including two refrigeration (heat pump) systems and three main functions: fresh air, air conditioning, heat pump, and hot water. The upper part is the main air intake and exhaust unit 21 (i.e., the fresh air module in the above embodiments). In this embodiment, for ease of installation and maintenance, the main air intake and exhaust unit 21 adopts vertical air intake and exhaust ducts, that is, the fresh air supply port 24 and the waste air return port 25 are both set on the top cover of the main unit. The lower part is an air source water heater unit fusion body driven by a single compressor, which includes two systems: air conditioning, heat pump, and hot water. Both compressors are set in the lower compressor chamber. In this embodiment, the main air intake and exhaust unit 21 and the central air conditioning unit 22 of the upper and lower sections of the residential energy center 18 both adopt vertical strip exhaust vents 23, which are compatible with the vertical strip exhaust vents reserved on the side of the equipment platform facade. When the air duct is running, the large area of ​​the facade is low-speed air intake through the air conditioning air intake surface 30 (away from the vertical strip exhaust vent 23), and the medium-speed air exhaust through the vertical strip exhaust vent 23 has a good diffusion and dilution effect.

[0192] In this embodiment, the air conditioning unit 22 in the lower structure of the residential energy center 18 (which, when combined with the air source water heater, becomes the air conditioning unit 22 and air source water heater fusion body described below) not only incorporates the compressor of the main air intake and exhaust unit 21, but also integrates the external heat exchanger of the main air intake and exhaust unit 21. In this embodiment, the air conditioning unit 22 and the air source water heater unit are integrated, using a copper tube V-shaped finned tube external heat exchanger assembly. The refrigerant piping of the external heat exchanger assembly includes two independent piping systems, respectively connected to the air conditioning unit and the main air inlet / outlet unit 21, which are two independent refrigeration systems. The two refrigerant piping systems are thermally connected through longitudinal and transverse thermal bridges of the flat finned tubes. The air inlet, V-shaped finned tube external heat exchanger assembly, negative pressure chamber, fan wall, and exhaust chamber are arranged in a linear progression. The exhaust outlet of the exhaust chamber is perpendicular to the fan wall and... Located in the vertical plane; in this embodiment, the two flat finned tube heat exchangers of the copper tube V-shaped finned tube external heat exchanger assembly are each equipped with three or more rows of refrigerant pipelines, which are respectively configured to the air conditioner and the main air inlet and outlet unit 21 for two refrigeration systems. For example, the air conditioner uses two rows of pipelines on the inner and outer sides of the finned tube assembly, and the main air inlet and outlet unit 21 uses the middle row of pipelines; the refrigerant pipelines of the air conditioner and the main air inlet and outlet unit 21 occupy the heat exchange area of ​​each other's fins through the longitudinal and transverse thermal bridges of the finned plate assembly. In this embodiment, the air conditioning unit 22 is the integrated air conditioning unit 22 and air source water heater unit. The central air conditioning unit 22 produces hot and cold water (air conditioning water) through a fluorine-water heat exchanger and delivers it to the indoor central air conditioning terminals. The air conditioning terminals can be fan coil units or radiant panels. The air conditioning unit 22 adopts a staggered operation mode, stopping the operation of the indoor central air conditioning terminals and producing high-temperature hot water (primary water) through the fluorine-water heat exchanger, which is then delivered to the water-water heat exchanger in the air source water heater tank 19 to produce domestic hot water (secondary water). The air conditioning unit 22 can also be equipped with a domestic hot water fluorine-water heat exchanger parallel to the fluorine circuit of the air conditioning fluorine-water heat exchanger, which produces domestic hot water in the air source water heater tank 19.

[0193] The residential energy center 18 in this embodiment is also used in the kitchen of the residence. The main air intake and exhaust module (fresh air module) is configured to form a fresh air supply vent in the kitchen through ductwork, for delivering fresh air to the kitchen under positive pressure. The residential energy center 18 also includes an active or passive range hood system.

[0194] The active range hood and cooktop system includes a range hood and cooktop arranged vertically at intervals, as well as an active airflow assembly. The range hood generates a negative pressure suction on the space above the cooktop. The active airflow assembly includes a static pressure exhaust chamber, a drive fan, an air inlet chamber, and an air inlet duct 20. The two ends of the air inlet chamber are connected to the air outlet of the air inlet duct 20 and the air inlet of the drive fan, respectively. The exhaust end of the drive fan is connected to the static pressure exhaust chamber. The air inlet end of the air inlet duct 20 is connected to the outside atmosphere of the kitchen (i.e., the air inlet duct 20, the air inlet chamber, the drive fan, and the static pressure exhaust chamber are arranged in series in the airflow path). The static pressure exhaust chamber includes at least a portion of a flow equalization area surrounding the cooktop, and several flow equalization channels connected to the static pressure exhaust chamber are arranged within the flow equalization area.

[0195] The static pressure exhaust chamber is configured to receive the airflow output by the driving fan and to decelerate, pressurize, and homogenize the airflow. Under positive pressure, the gas in the static pressure exhaust chamber forms an upward airflow with non-impact airflow characteristics that at least partially surrounds the cooktop through various flow equalization channels. The upward conveying of the static pressure exhaust chamber, combined with the downward suction of the range hood, forms a vertical entrainment airflow between the range hood and the cooktop.

[0196] In this embodiment, the kitchen stove range hood system utilizes a dual-powered upward conveying and downward suction to guide and organize the fumes and vapors around the cookware at the stove, blocking their lateral diffusion within the kitchen and vertically conveying them to the range hood's intake. This achieves short-circuit exhaust of the main kitchen airflow from the exterior walls and chimney, significantly reducing the airflow from doors and windows in the main kitchen space, thereby greatly reducing the concentration of fumes and vapors and the energy consumption of air conditioning.

[0197] The energy-saving and consumption-reducing effect of the kitchen fresh air system in this embodiment is not only due to the energy saving of the kitchen stove's air supply and exhaust, but also because it significantly reduces the convective and radiative heat generated by the stove's smoke, oil, and steam on the main kitchen space and cooking personnel under traditional smoke exhaust technology. Driven by the fresh air flow delivered into the kitchen by the main air intake and exhaust unit of the residential energy center, the gradient structure of the temperature field, humidity field, cleanliness field, and freshness field of the kitchen space is fundamentally improved, thereby significantly reducing the energy consumption of kitchen air conditioning.

[0198] In this embodiment, the residential energy center 18, through the centralized and complementary design of the fresh air conditioning heat pump hot water system, further achieves energy complementarity and functional complementarity during operation: ① Improve energy efficiency---This embodiment promotes the innovative design of the external heat exchanger assembly structure of the central air conditioning unit 2222 external heat exchanger and the main air inlet and outlet unit 2121 external heat exchanger with independent refrigerant circuit and combined air circuit. The operating energy efficiency is improved by bridging the fin thermal bridge between the two sets of finned tube external heat exchangers. ② Fundamentally solve the defrosting problem of the external heat exchanger of the heat pump unit in severe winter---This embodiment uses the air source heat pump (central air conditioner) to reverse the operation to absorb heat from the water tank of the water heater and then pump it into the external heat exchanger assembly, fundamentally solving the defrosting problem of the external heat exchanger of the heat pump unit in severe winter, which has been unsolvable since the birth of air conditioning. In this embodiment, the residential energy center 18 is equipped with a central energy controller, a unified communication protocol and interface, and centralized and unified management of the energy operation of the whole house's fresh air, air conditioning, hot water, and kitchen exhaust, creating a veritable "whole house energy center" that integrates more than 90% of the energy consumption of a residence. ① Intelligent control of the main air intake and exhaust unit 21 solves the problem of fresh air replacement in all spaces within the unit, including the fresh air replacement in public spaces and main rooms, as well as storage spaces such as wardrobes, cabinets, shoe cabinets, and bathroom cabinets, and controls the temperature, humidity, freshness, cleanliness, and quietness of the indoor space. ② Intelligent control solves the energy coupling of the air conditioning unit's 22 refrigerant circuit and water circuit, as well as the energy coupling between the water circuit and the temperature control system of each space's radiant panel, providing quiet and uniform temperature regulation for all indoor spaces; ③ Intelligent control of the operation of the air source water heater unit ensures the real-time supply of hot water needed for cooking, bathing, cleaning, etc.; and through the reverse operation of the air source heat pump central air conditioning unit 22, it absorbs the heat of the hot water in the water tank and pumps it back into the external heat exchanger assembly, and melts the frost between the fins through the thermal bridge of the fins of the external heat exchanger assembly, fundamentally solving the defrosting problem of the external heat exchanger of the air conditioning unit 22 in the cold winter. ④ Intelligent control of the kitchen stove-range hood system solves the problem of fresh air being introduced into the kitchen stove environment via a short circuit from the outside wall and slowly carrying the smoke upwards into the flue shaft, which greatly reduces the ventilation volume of the main kitchen space. At the same time, the main air intake and exhaust unit 21 introduces fresh air into the kitchen to improve the air conditioning effect of the main kitchen space.

[0199] The advantages of the residential energy center 18 in this embodiment are: ① Achieve comprehensive integration of residential green energy equipment to create residential energy centers 18 This embodiment further incorporates the residential hot water production and kitchen exhaust system. Focusing on five air quality indicators—temperature, humidity, freshness, cleanliness, and quietness—as well as the hot water temperature, flow rate, and flow rate indicators, and considering the multimodal energy fields and energy flows of the main air intake and exhaust unit 21, central air conditioning water heater, air source water heater, and kitchen stove exhaust system, a residential energy central controller is set up. With a unified communication protocol and interface, it centrally and uniformly manages the energy operation of the whole house's fresh air, air conditioning, hot water, and kitchen exhaust, constructing a truly centralized and unified "whole house energy center" that accounts for more than 90% of the residential energy consumption, achieving the first comprehensive integration of residential green energy equipment.

[0200] ② Optimize the backend algorithm to unify the management of green energy allocation This embodiment promotes the innovative design of the external heat exchanger assembly structure of the central air conditioning unit 22 external heat exchanger and the main air inlet and outlet unit 21 external heat exchanger with independent refrigerant circuit and combined air circuit. The fin thermal bridge between the two sets of finned tube external heat exchangers is used to improve the operating energy efficiency. This embodiment uses the reverse operation of the heat pump central air conditioner to absorb a small amount of heat from the water tank of the water heater and pump it into the external heat exchanger assembly in reverse. The fin thermal bridge is used to melt the frost between the fins of the external heat exchanger of the central air conditioner unit 22, thus fundamentally solving the problem of defrosting the external heat exchanger of the heat pump unit in severe winter, which has been a problem since the birth of air conditioning. This embodiment unifies the energy allocation of whole-house fresh air, air conditioning, hot water, and kitchen exhaust, optimizes the background algorithm, promotes green energy complementarity and functional complementarity, and realizes unified management and distribution of green energy.

[0201] ③ The introduction of "five constants" has improved the green energy quality of the residential system. The main air intake and exhaust unit 21 in this embodiment features constant temperature dehumidification and deep dehumidification during the humid plum rain season. As the best partner for the radiant cooling and heating technology of air conditioning radiant panels, it fundamentally solves the problem of condensation and mold growth on the panel surface due to the possibility that the surface temperature of the radiant panel may be lower than the dew point temperature of the indoor air. It achieves constant temperature, humidity, oxygen, cleanliness and quietness in the living space, fully introduces the "five constants", and improves the green energy quality of the living system.

[0202] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A fresh air conditioning module, characterized in that, include: An air inlet duct, comprising a fresh air inlet and a first return air inlet; An exhaust duct, wherein the exhaust duct includes a second return air inlet; The return air duct is connected to the first return air inlet and the second return air inlet at its output ends. The first heat exchange module includes a first flow channel and a second flow channel. The fresh air flowing through the first flow channel and the fresh air flowing through the second flow channel exchange heat with each other. The input end of the first flow channel is connected to the output end of the air inlet flow channel. The intermediate flow channel is configured to connect the output end of the first flow channel and the input end of the second flow channel; The fresh air inlet and / or the first return air inlet, the air inlet channel, the first channel, the intermediate channel and the second channel are sequentially connected to form a single-connected air supply channel; the return air channel, the second return air inlet and the exhaust channel are connected to form a single-connected air outlet channel. The second heat exchange module is arranged at the input end of the second flow channel, or at the intermediate flow channel, or at the output end of the first flow channel. The second heat exchange module is configured to receive external heat exchange medium and exchange heat with the fresh air flowing through it. The fresh air power point is installed in the air supply duct; The exhaust power point is installed in the exhaust duct; A fresh air damper is installed at the fresh air inlet and is configured to open or close the fresh air inlet. A mode switching damper is installed at the output end of the return air duct and is configured to open only the first return air inlet, or only the second return air inlet, or simultaneously open at least a portion of the first return air inlet and at least a portion of the second return air inlet.

2. The fresh air conditioning module as described in claim 1, characterized in that, The first return air inlet and the second return air inlet are arranged side by side, and the mode switching damper is a sliding electric damper, wherein the sliding plate of the sliding electric damper slides between the first return air inlet and the second return air inlet.

3. The fresh air conditioning module as described in claim 1, characterized in that, It also includes a third heat exchange module, which is arranged at the output end of the second flow channel. The third heat exchange module is configured to receive an external heat exchange medium and exchange heat with the fresh air flowing through it, or to exchange heat with the fresh air flowing through it without exchanging heat.

4. The fresh air conditioning module as described in claim 3, characterized in that, The second heat exchange module is a first finned tube heat exchanger, and the third heat exchange module is a second finned tube heat exchanger; the first finned tube heat exchanger and the second finned tube heat exchanger are respectively connected to an electronic expansion valve, a lotus head and a manifold to become independent refrigeration terminals.

5. The fresh air conditioning module as described in claim 1, characterized in that, It also includes a fresh air housing, in which a fresh air chamber, an exhaust air duct, and a return air duct are formed. The first heat exchange module is installed in the fresh air chamber and cooperates to form the intermediate duct and the inlet air duct located in the fresh air chamber.

6. The fresh air conditioning module as described in claim 5, characterized in that, The fresh air housing also has an air outlet cavity that connects to the output end of the second flow channel, and the fresh air power point is installed in the air outlet cavity.

7. The fresh air conditioning module as described in claim 1, characterized in that, The first heat exchange module is parallelogram in shape, and both the air inlet channel and the intermediate channel are wedge-shaped channels with a gradually increasing cross-sectional area along the airflow direction.

8. The fresh air conditioning module as described in claim 1, characterized in that, It also includes a humidification unit, the humidification end of which is arranged at the output end of the second flow channel.

9. The fresh air conditioning module as described in claim 1, characterized in that, It also includes a fresh air filter unit, which is installed at the fresh air inlet.

10. The fresh air conditioning module as described in claim 1, characterized in that, The first heat exchange module is a cross-flow heat exchanger.

11. A whole-house fresh air system, characterized in that, For a group of rooms, the group of rooms comprising multiple rooms and a common space connected to each of the rooms, the whole-house fresh air system includes: A single-pipe bidirectional flow whole-house fresh air system, comprising a fresh air conditioning module as described in any one of claims 1 to 10; the single-pipe bidirectional flow whole-house fresh air system is configured to directly or indirectly introduce ambient fresh air into the public space under positive pressure through the fresh air power point, and is configured to construct a room stale air return end in one or more of the rooms through a single-pipe pipeline system and extract room stale air in conjunction with an exhaust power point; Each room relay channel corresponds one-to-one with the room's waste air return end, and the room relay channel is configured to connect the public space and the room.

12. The whole-house fresh air system as described in claim 11, characterized in that, The single-pass bidirectional flow whole-house fresh air system includes the single-pass duct system, the fresh air module, and the exhaust module; the single-pass duct system includes a main exhaust duct and several room exhaust ducts; The fresh air module is arranged on the exterior wall of the public space and connects the public space with the environment, or it is arranged on the exterior wall of a room and connects the public space with the environment through a section of air supply duct. The fresh air module is configured to introduce fresh air into the environment under positive pressure to establish a fresh air supply state in the public space. The exhaust module is connected to the exhaust ducts of each room through the main exhaust duct. The exhaust module is provided with the exhaust power point.

13. The whole-house fresh air system as described in claim 11, characterized in that, The room relay channel is a vertical air duct. The vertical air duct is configured to have a first air outlet facing the public space and a second air outlet facing the room. The first air outlet and the second air outlet are arranged vertically away from each other and are connected by an air duct flow channel formed by the inner wall of the vertical air duct. The air duct flow channel is used to eliminate the sound wave transmission between the public space and the room and to guide or drive the vertical flow of fresh air to establish a three-dimensional flow of fresh air. Alternatively, the room relay channel is a door, which is a hollow structure and configured to have a first air vent facing the public space and a second air vent facing the room. The first and second air vents are arranged vertically or horizontally away from each other and connected by a duct flow channel formed by the inner wall of the door. The duct flow channel is used to reduce the transmission of sound waves between the public space and the room and to guide or drive the flow of fresh air.

14. The whole-house fresh air system as described in claim 13, characterized in that, A relay power point is provided in the air duct channel. The relay power point is configured to draw fresh air from the public space at the first air outlet and output it to the room with positive pressure through the room relay channel.

15. The whole-house fresh air system as described in claim 13, characterized in that, The vertical duct is equipped with two speaker units arranged at intervals in the vertical direction. The two speaker units, together with the speaker unit at the return air end of the room, form a stereo sound system for the room.

16. A whole-house fresh air system, characterized in that, For a group of rooms, the group of rooms comprising multiple rooms and a common space connected to each of the rooms, the whole-house fresh air system includes: A single-pipe bidirectional flow whole-house fresh air system, comprising a fresh air conditioning module as described in any one of claims 1 to 10; the single-pipe bidirectional flow whole-house fresh air system is configured to construct a room fresh air supply end in one or more rooms through a single-pipe pipeline system and introduce ambient fresh air in conjunction with the fresh air power point, and is configured to exhaust sludge directly or indirectly from outside the public space through an exhaust power point; Each room relay channel corresponds one-to-one with the fresh air supply terminal of the room, and the room relay channel is configured to connect the public space and the room.

17. The whole-house fresh air system as described in claim 16, characterized in that, The single-pass bidirectional flow whole-house fresh air system includes the single-pass duct system, the fresh air module, and the exhaust module; the single-pass duct system includes a main fresh air duct and several room fresh air ducts; The exhaust module is installed on the exterior wall of the public space and connects the public space with the environment, or it is installed on the exterior wall of a room and connects the public space with the environment through a section of exhaust pipe. The exhaust module is configured to exhaust sewage to establish a negative pressure extraction state in the public space. The exhaust module is equipped with the exhaust power point. The fresh air module is connected to the fresh air ducts of each room through the main fresh air duct.

18. A five-constant system, characterized in that, For use in a group of rooms, the group of rooms including multiple rooms and a common space connected to each of the rooms, the five constant systems including a whole-house fresh air system as described in any one of claims 11 to 15, wherein the total fresh air module of the whole-house fresh air system is configured to regulate the freshness, cleanliness and temperature and humidity of the fresh air supplied to the common space; Alternatively, it may include a whole-house fresh air system as described in any one of claims 16 to 17, wherein the total fresh air module of the whole-house fresh air system is configured to regulate the freshness, cleanliness, and temperature and humidity of the fresh air supplied to the room; The five constant systems also include a temperature control system; The temperature control system is a radiant temperature control system, which includes an air conditioning water unit and several radiant temperature control units connected to the air conditioning water unit. The radiant temperature control units are installed in the public space and at least one of the rooms below the ceiling and / or floor and / or side walls. Alternatively, the temperature control system is a forced convection temperature control system, which includes an air conditioning unit and several fan coil units connected to the water or refrigerant circuit of the air conditioning unit. The fan coil units are laid under the ceiling of the public space and at least one of the rooms.

19. The five constant systems as described in claim 18, characterized in that, The air conditioning water unit includes a fluorine circuit system and a water circuit system that exchange heat through a fluorine-water heat exchanger; wherein, the water circuit system is configured to produce cold water or hot water and deliver it to the radiant temperature control unit or deliver it to the radiant temperature control unit through a hydraulic module.

20. The five constant systems as described in claim 19, characterized in that, The fluorine circuit system is equipped with a finned tube external heat exchanger assembly located on the equipment platform. The output end of the airflow channel of the finned tube external heat exchanger assembly is configured as a strip-shaped exhaust port, which is connected to the exterior decorative structure of the equipment platform.

21. A residential energy center, characterized in that, include: The fresh air conditioning module as described in any one of claims 1 to 10, wherein the fresh air module serves as the main air intake and exhaust unit of the residence; An air conditioning unit, which is arranged above or below the main air intake and exhaust unit; Wherein, the refrigerant circuit where the second heat exchange module of the main air inlet and outlet host is located is the first fresh air refrigerant circuit, and the refrigerant circuit where the third heat exchange module is located is the second fresh air refrigerant circuit. At least part of the first fresh air refrigerant circuit and / or at least part of the second fresh air refrigerant circuit share the external heat exchanger fin group of the air conditioning host. Alternatively, the refrigerant circuit where the second heat exchange module and the third heat exchange module of the main air inlet and outlet unit are located is a fresh air refrigerant circuit, and at least part of the fresh air refrigerant circuit shares the external heat exchanger fin assembly of the air conditioning unit.

22. The residential energy center as described in claim 21, characterized in that, This also includes the water tank for air source heat pump water heaters; The air conditioning unit is an air conditioning refrigerant generator; the air conditioning refrigerant generator is configured to deliver refrigerant to the fan coil unit in the residence, and the air conditioning refrigerant generator is configured to supply refrigerant to the water tank heat exchanger in the water tank of the air source water heater; Alternatively, the air conditioning unit is an air conditioning water unit, which is configured to supply air conditioning water to the radiant temperature control unit or fan coil unit in the residence, and the air conditioning water unit is configured to supply high-temperature circulating water to the water tank heat exchanger in the water tank of the air source water heater. Alternatively, it may also include a refrigerant circuit for an air-source water heater arranged within the air conditioning unit, wherein the refrigerant circuit for the air-source water heater shares the external heat exchanger fin assembly of the air conditioning unit.

23. The residential energy center as described in claim 21, characterized in that, The exhaust vents of the main air inlet and outlet and the output ends of the airflow channels of the external heat exchanger of the air conditioning unit's finned tubes are all configured as vertical strip exhaust vents, which are connected to the vertical strip outlets reserved on the exterior decorative structure of the equipment platform.

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