Whole-house internal circulation air conditioning system and whole-house five-constant system

Abstract

According to the whole-house internal circulation air conditioning system and the whole-house five-constant system, an internal circulation air conditioning module is arranged, and a single-tube-pass pipeline system and an airflow relay channel are matched; the internal circulation air conditioner module, the internal circulation power point position in the internal circulation air conditioner module and the single-tube-pass pipeline system are matched to achieve air conditioner air leading-in towards a public space and air flow air returning in a room, the air conditioner heat exchange module adjusts the temperature of the air conditioner air, and an air flow relay channel serves as an air flow relay node for breaking through the public space and the room. And whole-house air-conditioning internal circulation is realized. According to the embodiment, the air conditioner indoor units (fan coils) of the public space and all the rooms are combined into the unified internal circulation air conditioner module on the equipment platform, then the air conditioner indoor units of all the rooms in the room group can be removed, the main source of room noise is eliminated from the source, and the noise reduction effect is achieved. Comprise indoor unit fan airflow noise, fan mechanical noise, refrigerant flow noise and drainage pump operation noise, and the building space constant static requirement is truly met.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning technology, and particularly relates to a whole-house indoor circulating air conditioning system and a whole-house five constant system. Background Technology

[0002] In the field of building ventilation, fresh air modules originating from Europe, which use total heat exchangers as their core, recover cold (in summer) and heat (in winter) between the intake and exhaust of air in a building space, and have now become the mainstream technology and common solution.

[0003] However, with the widespread application of heat and moisture exchange membranes and total heat exchanger fresh air modules, a series of serious problems of this technology have gradually been exposed. Nearly 20 years of HVAC technology practice has shown that the fresh air module has a complex structure, low heat exchange intensity, zero fresh air dehumidification intensity, serious pollution of the heat and moisture exchange membrane that is difficult to clean, and is very easy to freeze and be damaged during the heavy heat exchange stage in the cold season. Closely related to the aforementioned fresh air systems is the refrigeration and air conditioning sector; currently, the main product types of refrigeration and air conditioning can be divided into two major series: large and small refrigeration units. Large-scale unit series are used in ultra-large building spaces such as grand halls, grand theaters, large shopping malls, large hotels, museums, airport terminals, and high-speed rail waiting halls. The refrigeration and air conditioning systems mostly use screw chillers and centrifugal chiller stations. Small unit series, targeting spaces such as ordinary commercial buildings, office buildings, apartment buildings, and especially residential buildings with relatively small building spaces, are basically dominated by split units and multi-split units; As the five constant air quality principles of constant temperature, constant humidity, constant oxygen, constant cleanliness, and constant quietness in building spaces are gradually recognized, accepted, and appreciated by society, the operating noise of indoor units or fan coil units installed in building interior spaces by refrigeration plants, split units, and multi-split systems—including fan airflow noise, fan electromagnetic noise, fan mechanical noise, refrigerant flow noise, and drainage pump operating noise—is far from meeting the "constant quietness" requirement of the five constant systems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a whole-house circulating air conditioning system and a whole-house five constant system to solve the problem of operating noise in existing refrigeration and air conditioning systems.

[0005] To solve the above problems, the technical solution of the present invention is as follows: The present invention provides a whole-house recirculating air conditioning system 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 recirculating air conditioning system comprising: An internal circulation air conditioning module is arranged on an equipment platform or in an equipment room. The internal circulation air conditioning module has an internal circulation channel connecting the air conditioning return air vent and the air conditioning outlet, as well as an air conditioning heat exchange module and an internal circulation power point arranged in the internal circulation channel. The internal circulation air conditioning module is configured to directly or indirectly introduce heat-treated air conditioning air into the public space through the internal circulation power point and the air conditioning outlet. The internal circulation air conditioning module is also configured to form room return air vents in each room through the internal circulation power point and a single-pass duct system connecting the air conditioning return air vent to extract and collect return air. An airflow relay channel corresponds one-to-one with the room return air vent, and the airflow relay channel is configured to connect the public space and the room.

[0006] The whole-house circulating air conditioning system of the present invention includes an air conditioning heat exchange module, which is an air conditioning finned tube heat exchanger; the air conditioning finned tube heat exchanger and the air conditioning unit cooperate to form a closed-loop refrigerant circulation system, or the air conditioning finned tube heat exchanger and the air conditioning unit or hydraulic module cooperate to form a closed-loop water circulation system.

[0007] The whole-house circulating air conditioning system of the present invention includes a single-pass piping system comprising a main return air duct and several room return air ducts; The air conditioner outlet is directly connected to the public space or through a section of air supply duct; the air conditioner return air outlet is connected to the return air duct of each room through the main return air duct, and the room return air duct extends into the room to form the room return air outlet.

[0008] The whole-house circulating air conditioning system of the present invention has an airflow relay channel that 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 airflow 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 are connected by a duct flow channel formed by the inner wall of the door. The duct flow channel is used to dissipate sound wave transmission between the public space and the room and to guide or drive the flow of fresh air.

[0009] In the whole-house circulating air conditioning system of the present invention, the first air outlet is set at a low position or at a high position, and the second air outlet is provided with a guide vane structure for adjusting the air outlet direction.

[0010] In the whole-house circulating air conditioning system of the present invention, the vertical air duct is installed or integrated into the door frame.

[0011] The whole-house indoor air conditioning system of the present invention uses a centrifugal fan as the internal circulation power point.

[0012] The whole-house indoor air circulation air conditioning system of the present invention is provided with a sleeve-type sliding air valve at the room return air vent. The sleeve-type sliding air valve includes an outer cylinder, an inner cylinder, an extension, and a driving mechanism. The outer cylinder and the inner cylinder are nested together and slide relative to each other, and the outer cylinder and the inner cylinder are configured to switch between a closed configuration and a ventilated configuration; the inner cylinder is provided with a ventilation area extending along the sliding direction, and the ventilation area is provided with a plurality of ventilation holes; the inner ring surface of the outer cylinder is provided with a first fitting area and a second fitting area arranged at intervals along the sliding direction, and a sealed covering area is formed between the first fitting area and the second fitting area; the two ends of the extension member are opposite to each other and are respectively connected to the outer cylinder, and the extension member is configured such that its connection point overlaps with the geometric center of the outer cylinder wall; the drive mechanism is installed on the inner cylinder, and the drive end of the drive mechanism is connected to the connection point, and the movement trajectory of the drive end is located at the geometric center of the outer cylinder wall; In the closed configuration, the drive end of the drive mechanism moves the outer cylinder to the sealed coverage area, covering the entire ventilation area; in the open configuration, the drive end of the drive mechanism moves the outer cylinder to the sealed coverage area, covering part or not covering the ventilation area.

[0013] The whole-house indoor air conditioning system of the present invention includes an internal air conditioning module that further includes an internal air conditioning housing. The internal air conditioning housing is provided with an air return vent, a return air duct, an air outlet duct, and an air outlet connected in sequence. The return air duct and the air outlet duct cooperate to form the internal air duct.

[0014] The whole-house indoor air conditioning system of the present invention further includes an exhaust duct, a fresh air damper, and a mode switching damper in the inner circulation air conditioning housing; The air outlet duct includes a fresh air inlet and a first return air outlet; the exhaust duct includes a second return air outlet and an exhaust power point arranged therein; the output end of the return air duct is connected to the first return air outlet and the second return air outlet respectively; Along the airflow direction, the fresh air inlet, the air conditioning heat exchange module, and the internal circulation power point are arranged sequentially in the air outlet duct. The fresh air damper is installed at the fresh air inlet and is configured to open or close the fresh air inlet. The 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.

[0015] In the whole-house circulating air conditioning system of the present invention, 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.

[0016] The whole-house indoor air conditioning system of the present invention further includes a humidification unit in the inner circulation air conditioning housing, wherein the humidification end of the humidification unit is arranged at the output end of the inner circulation power point.

[0017] This invention discloses a whole-house recirculating air conditioning system 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 recirculating air conditioning system comprising: An internal circulation air conditioning module, wherein the internal circulation air conditioning module is provided with an internal circulation channel connecting the air conditioning return air vent and the air conditioning outlet, and an air conditioning heat exchange module and an internal circulation power point arranged in the internal circulation channel. The internal circulation air conditioning module is configured to create positive pressure at the room outlet in each of the rooms through the internal circulation power point and a single-pass pipeline system connecting the air conditioning outlet, and to introduce air-conditioned air that has undergone heat exchange treatment; and the internal circulation air conditioning module is configured to directly or indirectly draw return air into the public space through the internal circulation power point and the air conditioning return air outlet. An airflow relay channel corresponds one-to-one with the air outlet of the room, and the airflow relay channel is configured to connect the public space and the room.

[0018] The whole-house circulating air conditioning system of the present invention includes a sleeve-type sliding air valve at the room air outlet, the sleeve-type sliding air valve including an outer cylinder, an inner cylinder, an extension and a driving mechanism; The outer cylinder and the inner cylinder are nested together and slide relative to each other, and the outer cylinder and the inner cylinder are configured to switch between a closed configuration and a ventilated configuration; the outer cylinder has a ventilation area extending along the sliding direction, and the ventilation area has a plurality of ventilation holes; the inner ring surface of the inner cylinder has a first fitting area and a second fitting area arranged at intervals along the sliding direction, and a sealed covering area is formed between the first fitting area and the second fitting area; the two ends of the extension member are opposite to each other and are respectively connected to the inner cylinder, and the extension member is configured such that its connection point overlaps with the geometric center of the inner cylinder wall; the drive mechanism is mounted on the outer cylinder, and the drive end of the drive mechanism is connected to the connection point, and the movement trajectory of the drive end is located at the geometric center of the inner cylinder wall; In the closed configuration, the drive end of the drive mechanism moves the inner cylinder to the sealed coverage area, covering the entire ventilation area; in the open configuration, the drive end of the drive mechanism moves the inner cylinder to the sealed coverage area, covering part or not covering the ventilation area.

[0019] The present invention provides a whole-house five-constant system, which includes the whole-house indoor air circulation system described in any one of the above claims, and the whole-house five-constant system further includes 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 below the floor and / or on the side walls.

[0020] The whole-house five-constant system of the present invention includes an air conditioning water unit comprising a fluorine circuit system and a water circuit system for heat exchange via 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 via a hydraulic module.

[0021] The whole-house five constant system of the present invention includes a finned tube external heat exchanger assembly located in the equipment room or equipment platform. The output end of the airflow channel of the finned tube external heat exchanger assembly is configured as a strip exhaust port, which is connected to the exterior decorative structure of the equipment room or equipment platform.

[0022] Because the present invention adopts the above technical solution, it has the following advantages and positive effects compared with the prior art: One embodiment of the present invention uses an internal circulation air conditioning module, in conjunction with a single-pass piping system and an airflow relay channel. The internal circulation air conditioning module and its internal circulation power point work with the single-pass piping system to introduce air conditioning air into the public space and return air into the rooms. An air conditioning heat exchange module adjusts the temperature of the air conditioning air, and the airflow relay channel acts as an airflow relay node connecting the public space and the rooms, achieving whole-house air conditioning internal circulation. During operation, the internal circulation power point of the internal circulation air conditioning module serves as the sole power point for the airflow circulation within the room group. It draws in return air from each room through the single-pass piping system. The return air exchanges heat with the air conditioning heat exchange module, cooling and dehumidifying in summer and heating in winter. After being drawn in and pressurized by the internal circulation power point, it is directly or indirectly sent to the public space of the room group. Then, it passes through the public space, which replaces the supply air duct, and enters each room through the airflow relay channel. After heat and mass transfer within the rooms, it is drawn in by the negative pressure of the room's return air vents back into the single-pass piping system, starting the next cycle. This embodiment merges the indoor air conditioning units (fan coil units) of public spaces and individual rooms into a unified internal circulation air conditioning module on the equipment platform. This allows the removal of all indoor air conditioning units in the room group, eliminating the main sources of room noise, including indoor unit fan airflow noise, fan mechanical noise, refrigerant flow noise, and drainage pump operation noise, truly achieving the requirement of constant quietness in the building space. Attached Figure Description

[0023] Figure 1 This is a diagram showing the airflow node distribution of the whole-house circulating air conditioning system according to Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the internal circulation air conditioning module of the whole-house indoor air conditioning system according to Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the vertical air duct of the whole-house indoor circulating air conditioning system according to Embodiment 1 of the present invention; Figure 4 This is an airflow diagram of the vertical duct of the whole-house circulating air conditioning system according to Embodiment 1 of the present invention; Figure 5 This is an airflow diagram of the whole-house indoor circulating air conditioning system according to Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the sleeve-type sliding air valve of the whole-house indoor circulating air conditioning system according to Embodiment 2 of the present invention; Figure 7 This is a cross-sectional view of the sleeve-type sliding air valve of the whole-house indoor circulating air conditioning system according to Embodiment 2 of the present invention. Figure 8 This is a schematic diagram of the local air conditioning of the whole-house indoor circulating air conditioning system in Embodiment 2 of the present invention, showing the local air conditioning of different areas and rooms. Figure 9This is a schematic diagram of the internal circulation air conditioning module of the whole-house indoor air conditioning system according to Embodiment 3 of the present invention; Figure 10 This is a schematic diagram of the mode switching damper of the whole-house indoor air circulation system according to Embodiment 3 of the present invention; Figure 11 This is an airflow diagram of the fresh air replacement in the public space of the whole-house circulating air conditioning system according to Embodiment 3 of the present invention; Figure 12 This is an airflow diagram of the room fresh air replacement in the whole-house circulating air conditioning system of Embodiment 3 of the present invention; Figure 13 This is a schematic diagram of the airflow of the whole-house five-constant system according to Embodiment 5 of the present invention; Figure 14 This is a diagram showing the airflow node distribution of the whole-house circulating air conditioning system according to Embodiment 4 of the present invention. Figure 15 This is a schematic diagram of the sleeve-type sliding air valve of the whole-house indoor circulating air conditioning system according to Embodiment 4 of the present invention; Figure 16 This is a cross-sectional view of the sleeve-type sliding air valve of the whole-house indoor circulating air conditioning system according to Embodiment 4 of the present invention. Figure 17 This is an airflow diagram of the whole-house indoor circulating air conditioning system according to Embodiment 4 of the present invention; Figure 18 This is a system structure diagram of the fresh air module in Embodiment Six of the present invention; Figure 19 This is an operational diagram of the fresh air module's intake dehumidification and exhaust heating in Embodiment Six of the present invention.

[0024] Explanation of reference numerals in the attached diagram: 1. Internal circulation air conditioning module; 101. Air conditioning return air vent; 102. Air conditioning outlet; 103. Internal circulation channel; 104. Internal circulation power point; 105. Air conditioning finned tube heat exchanger; 106. Exhaust air channel; 107. Fresh air damper; 108. Mode switching damper; 1081. First return air vent; 1082. Second return air vent; 1083. Motor push rod; 1084. Sliding vane; 1085. Door slide groove; 109. Exhaust power point; 110. Humidification unit; 111. Second finned tube heat exchanger; 112. Compressor; 113. First four-way valve; 114. Second four-way valve; 115. First 1. Electronic expansion valve; 116. Second electronic expansion valve; 117. Third electronic expansion valve; 118. External heat exchanger; 2. Airflow relay channel; 201. Vertical air duct; 202. First air outlet; 203. Second air outlet; 3. Single-pass piping system; 301. Main return air duct; 302. Room return air duct; 303. Main air supply duct; 304. Room air supply duct; 4. Supply air duct; 5. Exhaust air duct; 6. Air conditioning unit; 7. Sleeve-type sliding damper; 701. Inner cylinder; 702. Outer cylinder; 703. Push rod; 704. Drive motor; 705. Extension component; 8. Equipment platform; 9. Radiant temperature control unit; 10. Room return air outlet. Detailed Implementation

[0025] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed account of the whole-house circulating air conditioning system and the whole-house five-constant system proposed in this invention. The advantages and features of this invention will become clearer from the following description and claims.

[0026] Example 1 See Figures 1 to 5 In one embodiment, a whole-house recirculating air conditioning system is used for a group of rooms, the group of rooms including multiple rooms and a public space connected to each room. The whole-house recirculating air conditioning system includes an internal recirculating air conditioning module 1, a single-pass piping system 3 and an airflow relay channel 2.

[0027] An internal circulation air conditioning module 1 is arranged on the equipment platform 8 or in the equipment room. The internal circulation air conditioning module 1 includes an internal circulation channel 103 connecting the air conditioning return air vent 101 and the air conditioning outlet 102, as well as an air conditioning heat exchange module and an internal circulation power point 104 arranged within the internal circulation channel 103. The internal circulation air conditioning module 1 is configured to directly or indirectly introduce heat-treated air conditioning air into the public space under positive pressure through the internal circulation power point 104 and the air conditioning outlet 102. Furthermore, the internal circulation air conditioning module 1 is configured to form room return air vents 10 in each room through the internal circulation power point 104 and a single-pass duct system 3 connecting the air conditioning return air vent 101 to extract and collect return air.

[0028] Airflow relay channel 2 corresponds one-to-one with room return air vent 10, and airflow relay channel 2 is configured to connect public space and room.

[0029] This embodiment uses an internal circulation air conditioning module 1, in conjunction with a single-pass piping system 3 and an airflow relay channel 2. The internal circulation air conditioning module 1 and its internal circulation power point 104 work together with the single-pass piping system 3 to introduce air conditioning air into the public space and return air into the rooms. The air conditioning heat exchange module adjusts the temperature of the air conditioning air, and the airflow relay channel 2 acts as an airflow relay node connecting the public space and the rooms, achieving whole-house air conditioning internal circulation. During operation, the internal circulation power point 104 of the internal circulation air conditioning module 1 serves as the sole power point for the internal circulation of airflow within the room group. It draws in return air from each room through the single-pass piping system 3. The return air exchanges heat with the air conditioning heat exchange module, cooling and dehumidifying in summer and heating in winter. After being drawn in and pressurized by the internal circulation power point 104, it is directly or indirectly sent to the public space of the room group. Then, through the public space (replacing the supply air duct), it enters each room via the airflow relay channel 2. After heat and mass transfer within the rooms, it is drawn in by the negative pressure of the room return air vent 10 into the single-pass piping system 3, starting the next cycle. This embodiment merges the indoor air conditioning units (fan coil units) of the public space and each room into a unified internal circulation air conditioning module 1 on the equipment platform 8. This allows the removal of all indoor air conditioning units in the room group, eliminating the main sources of room noise, including indoor unit fan airflow noise, fan mechanical noise, refrigerant flow noise, and drainage pump operation noise, truly achieving the requirement of constant quietness in the building space.

[0030] The whole-house circulating air conditioning system in this embodiment is a three-stage airflow circulation system, including a common space (living room corridor) replacing the supply air duct, the main room space, and a single-pass duct system 3. The common space (living room corridor) replaces the supply air duct, and only one exhaust duct replaces the traditional two sets of ducts (supply and exhaust), implementing a "ductless combined supply and exhaust, exhaust-oriented, whole-house bidirectional fresh air system." Furthermore, this embodiment is a single-pass bidirectional fresh air system (no supply air duct required), and its main supply air duct (corridor) and main exhaust air duct (single-pass duct system 3) do not intersect; the entire airflow path has only one power point (internal circulation power point 104); the air conditioning outlet 102 of the internal circulation air conditioning module 1 directly connects to the common space of the room group's corridor or is connected to the common space of the corridor through a section of supply air duct 4; this section of supply air duct 4 is short in length, large in diameter, and does not spatially interfere with the main exhaust duct.

[0031] The specific structure of the whole-house indoor air conditioning system in this embodiment will be further described below: In this embodiment, the aforementioned internal circulation air conditioning module 1 is preferably located adjacent to the external air conditioning unit 6.

[0032] In this embodiment, the air conditioning heat exchange module is an air conditioning finned tube heat exchanger 105. The air conditioning finned tube heat exchanger 105 cooperates with the air conditioning unit 6 to form a closed-loop refrigerant circulation system, or the air conditioning finned tube heat exchanger 105 cooperates with the air conditioning unit 6 or a hydraulic module to form a closed-loop water circulation system. That is, refrigerant flows inside the air conditioning finned tube heat exchanger 105, and the refrigerant is used to exchange heat and regulate the temperature of the return air; or, water flows inside the air conditioning finned tube heat exchanger 105, and the water is used to exchange heat and regulate the temperature of the return air.

[0033] In this embodiment, the single-pass duct system 3 includes a main return air duct 301 and several room return air ducts 302, which can be arranged above the ceiling. The air conditioning outlet 102 connects directly to the public space or through a section of supply air duct 4. The air conditioning return air outlet 101 can be connected to each room return air duct 302 through the main return air duct 301, and the room return air ducts 302 extend into the room to form room return air outlets 10.

[0034] In this embodiment, the internal circulation air conditioning module 1 adopts a ductless air supply method. Return air is introduced through the main return air duct 301 and the room return air duct 302. After being air-conditioned in the internal circulation air conditioning module 1, it is sent into the public space through the air conditioning outlet 102. Fresh air is then delivered to the entrances of each room through the public space.

[0035] In this embodiment, the airflow relay channel 2 can specifically be a vertical duct 201. This vertical duct 201 is configured with a first air outlet 202 facing the public space and a second air outlet 203102 facing the room. The first air outlet 202 and the second air outlet 203 are arranged vertically away from each other and connected by a duct flow channel formed by the inner wall of the vertical duct 201. This duct flow channel is used to dissipate sound wave transmission between the public space and the room. The vertical duct 201 can be a passive vertical duct 201 or an active vertical duct 201.

[0036] The passive vertical duct 201 includes a first air vent 202 facing the public space and a second air vent 203 facing the rooms. The first air vent 202 and the second air vent 203 are arranged vertically away from each other (the first air vent 202 is the air inlet, and the second air vent 203 is the air outlet; specifically, the first air vent 202 can be located at the lower end and the second air vent 203 at the upper end, or vice versa). They are connected by a duct flow channel formed by the inner wall of the passive vertical duct 201. The purpose of this arrangement is to maximize the distance that sound waves travel within the passive vertical duct for attenuation. The vertical distance between the first air vent 202 and the second air vent 203 is greater than half the building's floor height. The first air vent 202, the second air vent 203, and the air duct flow channel form a bent conveying channel. The bent area of ​​the bent conveying channel is used to slow down the transmission of sound waves and form an air conditioning air conduction node between the public space and the room, so that the corridor and the room can achieve air circulation and maintain quietness when the door is not opened.

[0037] Furthermore, the passive vertical duct 201 can be installed on the partition wall between the public space and the room, preferably installed or integrated into the door frame of the room. Specifically, the passive vertical duct 201 can be configured to match the height of the door frame and can be installed on the side of the door frame away from the room return air vent 10 to optimize the air conditioning air exchange effect in the room.

[0038] The horizontal cross-section of the passive vertical duct 201 can be circular or rectangular, preferably rectangular. The wall panels of the passive vertical duct 201 can be made of metal, inorganic, organic, or combined materials, preferably polymer synthetic materials. Furthermore, to improve sound insulation, sound-absorbing material can be attached to the inner wall of the passive vertical duct 201.

[0039] The first air inlet 202 of the passive vertical duct 201 may be provided with a decorative structure including an air intake channel, specifically a lattice window, louver, or other perforated structure. The second air inlet 203 of the passive vertical duct 201 may be rectangular or frustum-shaped, and may be provided with a guide vane structure for adjusting the air outlet direction, specifically a guide vane group that can swing up and down and / or a guide vane group that can swing left and right, to control the speed and direction of the fresh air outlet airflow.

[0040] During operation, the whole-house circulating air conditioning system with single-pipe bidirectional flow injects fresh air into the public space, establishing a slight positive pressure in the corridor, and draws return air from each room, establishing a negative pressure state in each room. This creates a pressure difference between the first air outlet 202 and the second air outlet 203 of the passive vertical air duct 201 in each room. Driven by this pressure difference, the fresh air in the public space flows from bottom to top through the vertical air duct 201 and enters the room space at a certain speed and direction angle, driving the original air in the room into the return air duct, thus achieving air replacement of the room's air conditioning.

[0041] The active vertical duct 201 is based on the passive vertical duct 201, and has a relay power point (centrifugal fan) set in the duct flow channel. The relay power point is configured to draw fresh air from the public space through the first air outlet 202 and output it to the room with positive pressure through the second air outlet 203 (that is, the relay power point further pulls fresh air from the public space into the room).

[0042] In this embodiment, fresh air is injected into public spaces such as corridors by the internal circulation power point 104 of the whole-house circulating air conditioning system, and return air is drawn out from each room by the internal circulation power point 104 as a power source. Driven by the relay power point in the active vertical air duct 201, the fresh air in the corridor passes through the active vertical air duct 201 from bottom to top (or from top to bottom) and enters the room space at a certain speed and direction angle, driving the room return air into the return air duct, thereby realizing the replacement of room air conditioning air.

[0043] In other embodiments, the airflow relay channel 2 described above may also be a door. The door has a cavity structure and is configured to have a first air vent 202 facing the public space and a second air vent 203 facing the room. The first air vent 202 and the second air vent 203 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.

[0044] In this embodiment, the internal circulation air conditioning module 1 delivers air conditioning air to the public space with positive pressure and establishes a slight negative pressure, while drawing air from each room to establish negative pressure in each room, thereby creating a pressure difference between the air inlet and outlet of the vertical air duct 201 in the room. Driven by this pressure difference, the air conditioning air in the public space, such as the living room corridor, flows from bottom to top through the vertical air duct 201 and enters the room space at a certain speed and direction angle. After flowing through the main space of the room, it flows into the room return air duct 302, thereby achieving room temperature and humidity regulation.

[0045] In this embodiment, when a single-power-point whole-house recirculation air conditioning system is running, the internal circulation power point 104 (centrifugal fan) serves as the sole power point for the internal circulation of airflow within the room group. It draws in return air from each room through the main return air duct 301 and the room return air duct 302. The return air exchanges heat with the air conditioning finned tube heat exchanger 105, providing cooling and dehumidification in summer and heating in winter. After being drawn in and pressurized by the centrifugal fan, the air is directly sent into the common space of the room group or sent through a section of the outlet duct. It then enters each room through the common space that replaces the supply duct. After heat and mass transfer in the room, it is drawn in by the negative pressure of the room return air inlet 10 into the main return air duct 301 and the room return air duct 302 to begin the next cycle.

[0046] The advantages of this embodiment of a single-power-point whole-house circulating air conditioning system are: ① The requirement of "constant stillness" in architectural space has been achieved. In this embodiment, the indoor air conditioning units (fan coil units) of the public space and each room are merged into a unified internal circulation air conditioning module 1 on the equipment platform 8; This embodiment removes all indoor air conditioning units in all rooms within the room complex, eliminating the main sources of room noise at the source, including indoor unit fan airflow noise, fan mechanical noise, refrigerant flow noise, and drainage pump operation noise, truly achieving the requirement of constant quietness in the building space; ② It eliminates various potential hazards that may be caused by the indoor unit of the air conditioner. This embodiment removes all indoor air conditioning units in the room group, including indoor units of direct expansion systems and fan coil units of water systems, fundamentally eliminating a series of safety hazards that may occur due to the presence of indoor air conditioning units, such as damage to condensate drain pumps, condensate pipe leaks, secondary condensate on the outside of condensate pipe insulation, refrigerant leaks in refrigerant connection pipes and indoor unit coils, and dirt and mold in indoor unit air ducts. ③ The large air circulation volume ensures the synchronized air conditioning effect in multiple rooms. Currently, the air circulation volume of indoor air conditioning units is typically set at 360m³ / h. 3 If the air conditioning ventilation needs of two rooms are met simultaneously, the air volume of the internal circulation air conditioning module 1 will exceed 700 m³ / h. 3 / h, the airflow velocity in the φ110 duct of the currently popular residential fresh air system exceeds 20m / s, and the airflow resistance and airflow noise are unbearable. This embodiment utilizes the potential of the air supply duct in the living room corridor to implement "ductless air supply," constructing a whole-house bidirectional air conditioning system with only one exhaust duct (single-pass duct system 3). For large-sized residences, the exhaust duct diameter can be increased to over φ220. If the total air conditioning volume is set to 700 m³ / h, the airflow velocity in the φ220 exhaust duct is only 5.1 m / s. If a φ300 exhaust duct is used, the airflow velocity is further reduced to below 2.8 m / s, providing sufficient duct diameter options for the centralized internal circulation air conditioning module 1. The large circulation volume ensures the synchronous air conditioning effect in multiple rooms. This embodiment may sometimes require adding a section of the air supply duct for the internal circulation air conditioning module 1, such as the air supply duct crossing the bathroom, but this section of the outlet duct does not spatially interfere with the single-pass duct system 3.

[0047] ④ Improved the energy efficiency of the air conditioning system In this embodiment, an internal circulation air conditioning module 1 is set up on the equipment platform 8 near the air conditioning unit 6 to implement centralized and unified air conditioning operation for the room group. Although this increases the length of the air path, resistance and fan energy consumption, it reduces the refrigerant resistance and compressor 112 energy consumption. For vapor compression refrigeration systems, the energy consumption of the air path, mainly the energy consumption of the fan, accounts for about 7% of the total energy consumption of the system, while the energy consumption of the refrigerant path, mainly the energy consumption of the compressor 112, accounts for more than 90%. This embodiment centrally sets the indoor units of multiple rooms (including public spaces) in a room group as a unified internal circulation air conditioning module 1. The internal circulation air conditioning module 1 is then set on the equipment platform 8 outside the room group and adjacent to the air conditioning unit 6. This significantly reduces the length of the connecting copper pipes between the indoor and outdoor units of the traditional air conditioning system and the corresponding pressure drop, thereby reducing the energy consumption of the compressor 112. After offsetting the increase in fan energy consumption, the total energy consumption can still be reduced, and the energy efficiency of the air conditioning system is improved.

[0048] ⑤ This creates conditions for the integration of the indoor unit and exhaust module of the air conditioner. In this embodiment, the internal circulation air conditioning module 1 is installed on the equipment platform 8, facing the open atmospheric environment. Furthermore, the air intake of the internal circulation air conditioning module 1 is connected to the main space of each room in the room group through the return air duct, and the air outlet of the internal circulation air conditioning module 1 is connected to the public space of the room group. By simply cutting the air intake duct of the internal circulation air conditioning module 1 and connecting the return air duct to the exhaust fan, so that the air intake of the internal circulation air conditioning module 1 faces the ambient atmosphere, bidirectional fresh air replacement of the room group can be implemented, thus creating conditions for the integration of the internal circulation air conditioning module 1 and the exhaust module.

[0049] Example 2 See Figures 6 to 8This embodiment provides a whole-house circulating air conditioning system based on the first embodiment described above. Specifically, a sleeve-type sliding air valve 7 is further provided at the room return air inlet 10 to control the operation of the air conditioning circulating air by zone or room. The sleeve-type sliding air valve 7 includes an outer cylinder 702, an inner cylinder 701, an extension 705, and a drive mechanism.

[0050] The outer cylinder 702 and the inner cylinder 701 are nested together and slide relative to each other, and are configured to switch between a closed configuration and a ventilated configuration. The inner cylinder 701 has a ventilation area extending along the sliding direction, and the ventilation area has several ventilation holes. The inner surface of the outer cylinder 702 has a first and a second sleeved area arranged at intervals along the sliding direction. A sealed covering area is formed between the first and second sleeved areas.

[0051] The two ends of the extension 705 are opposite to each other and are respectively connected to the outer cylinder 702. The extension 705 is configured such that its connection point overlaps with the geometric center of the outer cylinder 702 wall (specifically, when the cross-sections of the outer cylinder 702 and the inner cylinder 701 are circular, the extension 705 is connected to the outer cylinder 702 along the diameter; when the cross-section is polygonal, it can be a straight rod passing through the geometric center). The drive mechanism is installed on the inner cylinder 701, and the drive end of the drive mechanism is connected to the connection point. The movement trajectory of the drive end is located at the geometric center of the outer cylinder 702 wall.

[0052] In the closed configuration, the drive end of the drive mechanism moves the outer cylinder 702 to the sealed coverage area, covering the entire ventilation area. In the open configuration, the drive end of the drive mechanism moves the outer cylinder 702 to the sealed coverage area, covering part or not covering the ventilation area.

[0053] Specifically, the ventilation holes on the inner cylinder 701 serve as air inlet channels, and the opening at one end of the inner cylinder 701 can be connected to the room return air duct 302 to serve as an air outlet channel. The inner cylinder 701 may include a first overlapping area, a ventilation area, a second overlapping area, and a dwelling area arranged sequentially along the sliding direction. In the closed configuration, the first sleeve area of ​​the outer cylinder 702 moves to the first overlapping area of ​​the inner cylinder 701, the second sleeve area moves to the second overlapping area, and the air passage of the ventilation area in the middle is closed by relying on two flexible sealing sleeves. The open configuration can be specifically divided into partial opening and full opening. Partial opening is when the second sleeve area moves to the dwelling area and the first sleeve area moves to the ventilation area, at which time the ventilation holes located between the first sleeve area and the first overlapping area are open; full opening is when both the first sleeve area and the second sleeve area move into the dwelling area, at which time all ventilation holes are open.

[0054] Furthermore, the aforementioned ventilation holes can be arranged in an array along the circumference and sliding direction of the inner cylinder 701 in the ventilation area. Taking the inner cylinder 701 as a cylinder as an example, the ventilation holes can be arranged in an array along the circumferential and axial directions. The ventilation holes can be round holes, square holes, elliptical holes, or other hole shapes, and are not specifically limited here.

[0055] The inner cylinder 701 is also provided with a strip groove extending along the sliding direction, specifically two opposite straight strip grooves. The extension member 705 is configured such that its two ends extend through the strip groove and are connected to the outer cylinder 702. That is, the extension member 705 can slide along the strip groove to drive the outer cylinder 702 to slide.

[0056] In this embodiment, the cross-sectional shape of the inner cylinder 701 and the outer cylinder 702 in the sliding direction is one of the following: triangle, rectangle, grooved rectangle, cylinder, semi-cylindrical, and isosceles trapezoid.

[0057] The inner cylinder 701 and the outer cylinder 702 can be columnar thin-walled structures, with the inner dimension of the outer cylinder 702 cross-section being slightly larger than the outer dimension of the inner cylinder 701 cross-section.

[0058] In this embodiment, the driving mechanism includes a drive motor 704 and a push rod 703. The drive motor 704 is installed inside the inner cylinder 701, and the push rod 703 is installed at the output end of the drive motor 704. The extension member 705 is vertically connected to the push rod 703. Taking the outer cylinder 702 and the inner cylinder 701 as cylinders as an example, the drive motor 704 drives the push rod 703 to move axially, and then the push rod 703 drives the extension member 705 and the outer cylinder 702 connected to it to move axially.

[0059] In this embodiment, both the first and second sleeved areas can be provided with flexible sealing sleeves, which can be made of elastic soft materials.

[0060] When the sleeve-type sliding air valve 7 of this embodiment is opened, the push rod 703 of the drive motor 704 pushes the outer cylinder 702 to slide on the outer surface of the inner cylinder 701. The outer cylinder 702 partially or entirely slides to the dwell area, and the ventilation holes on the wall of the inner cylinder 701 are partially or completely exposed to the room air. Under the suction of the exhaust module, the main return air duct 301 and the room return air duct 302, the room stale air flows into the room return air duct 302 through the exposed ventilation hole area of ​​the inner cylinder 701, and the fresh air outside the room is then replenished into the room to implement room fresh air replacement. When the sleeve-type sliding damper 7 is closed, the push rod 703 of the drive motor 704 pushes the outer cylinder 702 to slide on the outer surface of the inner cylinder 701. The outer cylinder 702 slides out of the dwell area as a whole. The first sleeve area covers the first overlapping area, and the second sleeve area covers the second overlapping area. The ventilation area on the wall of the inner cylinder 701 is completely covered by the wall of the outer cylinder 702. The damper is closed and the fresh air replacement process of the room is completed.

[0061] This embodiment controls the air conditioning ventilation status of a room by opening and closing the sleeve-type sliding air valve 7 installed at the return air vents 10 of each room. It can shut off the airflow of air conditioning in certain rooms and stop the air conditioning in these rooms. For example, it can stop the air conditioning in the living room, dining room, north secondary bedroom and guest bathroom shown in the figure, so as to increase the air conditioning ventilation in areas or rooms with ventilation, such as the master bedroom and the two secondary bedrooms on the south side shown in the figure, so as to increase the temperature and humidity adjustment speed of these areas or rooms with fast ventilation and shorten the time to reach the target temperature and humidity.

[0062] In this embodiment, because each room (including public spaces) is equipped with a sleeve-type sliding damper 7 at its return air vent, independent temperature and humidity control in each room is ensured. ① Able to implement air conditioning in different areas or rooms This embodiment can turn off the air conditioning in rooms that do not require temperature and humidity control to save energy consumption of the air conditioning in a group of rooms; This embodiment can alternately shut down the airflow of air conditioning in some areas or rooms and stop the air conditioning in these areas or rooms, so as to increase the air ventilation of air conditioning in ventilated areas or rooms, thereby speeding up the temperature and humidity adjustment of these ventilated areas or rooms and shortening the time to reach the target temperature and humidity.

[0063] ② Capable of precisely adjusting the temperature and humidity of the target room. In this embodiment, the sleeve-type sliding air valve 7 can cooperate with the opening of the electric damper on the vertical air duct 201 to adjust the outlet air speed of the vertical air duct 201, thereby realizing the adjustment of the air conditioning airflow coverage in the main space of the room from near to far or from far to near, and improving the uniformity of room temperature and humidity.

[0064] Example 3 See Figures 9 to 12 This embodiment further provides a whole-house indoor air circulation system based on the above embodiments one and two. The indoor air circulation module 1 also includes an indoor air circulation housing, which is provided with an air return air inlet 101, a return air duct, an air outlet duct, and an air outlet 102 connected in sequence. The return air duct and the air outlet duct cooperate to form an indoor circulation duct 103.

[0065] Furthermore, the internal circulation air conditioner housing is also equipped with an exhaust duct 106, a fresh air damper 107, and a mode switching damper 108.

[0066] The outlet airflow duct includes a fresh air inlet and a first return air inlet 1081. The exhaust airflow duct 106 includes a second return air inlet 1082 and an exhaust power point 109 (which may be a centrifugal fan) arranged therein. The output end of the return airflow duct is connected to the first return air inlet 1081 and the second return air inlet 1082, respectively. Along the airflow direction, the fresh air inlet, the air conditioning heat exchange module, and the internal circulation power point 104 are sequentially arranged in the outlet airflow duct.

[0067] Fresh air damper 107 is installed at the fresh air inlet and is configured to open or close the fresh air inlet. Mode switching damper 108 is installed at the output end of the return air duct and is configured to open only the first return air inlet 1081, or only the second return air inlet 1082, or simultaneously open at least a portion of the first return air inlet 1081 and at least a portion of the second return air inlet 1082.

[0068] The internal circulation air conditioner casing can be rectangular in shape. Viewed from the top, it can include an exhaust duct 106 at the top and return and outlet ducts located below it. The outlet duct can be L-shaped, with a recessed area at its upper right corner, which forms the return air duct. The fresh air inlet can be located on the bottom plate of the internal circulation air conditioner casing corresponding to the outlet duct, and the fresh air damper 107 can be a rotary damper.

[0069] In this embodiment, the first return air inlet 1081 and the second return air inlet 1082 are arranged side by side, and the mode switching damper 108 is a sliding vane type electric damper 1084. The sliding vane 1084 of the sliding vane type electric damper slides between the first return air inlet 1081 and the second return air inlet 1082. The flow rate of the first return air inlet 1081 and the second return air inlet 1082 can be adjusted by driving the sliding vane 1084 to slide through the motor push rod 7031083. Specifically, the sliding vane 1084 can slide through the corresponding door slide groove 1085. This realizes a linkage electric damper with opposite opening and closing phases, performing opposite phase operations on the opening degrees of the first return air inlet 1081 and the second return air inlet 1082. If the first return air vent 1081 is fully open, then the second return air vent 1082 is closed; if the second return air vent 1082 is fully open, then the first return air vent 1081 is closed; if the opening degree of the first return air vent 1081 is x (1.0 > x > 0), then the opening degree of the second return air vent 1082 is 1 - x (1.0 > x > 0).

[0070] In this embodiment, the internal circulation air conditioner housing is further provided with a humidification unit 110, the humidification end of which is arranged at the output end of the internal circulation power point 104. Specifically, an air outlet cavity located downstream of the internal circulation power point 104 can be formed inside the internal circulation air conditioner housing, and the humidification end of the humidification unit 110 can be disposed in this air outlet cavity. The humidification unit 110 can specifically be a humidifier.

[0071] The internal circulation air conditioning system in this embodiment has two operating modes: internal circulation air conditioning mode and fresh air replacement mode.

[0072] (a) Internal circulation air conditioning operation mode When the fresh air damper 107 is closed, the mode switching damper 108 closes the second return air inlet 1082 while opening the first return air inlet 1081. The internal circulation air conditioning module 1 sends air conditioning air into the public space under positive pressure and establishes a slight positive pressure. Air is drawn out from each room to establish negative pressure in each room, thereby creating a pressure difference between the air inlet and outlet of the vertical air duct 201. Driven by this pressure difference, the air conditioning air in the public space, such as the living room corridor, flows from bottom to top through the vertical air duct 201 and enters the room space at a certain speed and direction angle. After flowing through the main space of the room, it flows into the room return air duct 302 to achieve room temperature and humidity regulation. Its centrifugal fan serves as the only power point for the internal circulation of airflow in the room group. It draws in return air from each room through the room return air duct 302. The return air exchanges heat with the air conditioning finned tube heat exchanger 105, cooling and dehumidifying in summer and heating in winter. After being drawn in and pressurized by the centrifugal fan, it is directly sent into the public space of the room group or sent through a connecting pipe to start the next cycle.

[0073] (II) Fresh air replacement operation mode When the fresh air damper 107 opens, the mode switching damper 108 opens the second return air inlet 1082 and closes the first return air inlet 1081. With the integrated module of internal circulation and fresh air replacement as the core, a whole-house bidirectional fresh air circulation link is constructed, starting from the outdoor environment and ending at the outdoor environment: "Ambient fresh air → integrated module of internal circulation and fresh air replacement → public space of living room and corridor → vertical air duct 201 → main room space → room return air duct 302 → main return air duct 301 → exhaust power point 109, exhaust flow channel 106 → outdoor atmosphere".

[0074] In this embodiment, the whole house bidirectional flow fresh air link develops the potential of fresh air channels connecting the living room, corridor and public space to various rooms to replace the fresh air supply duct. Only one exhaust duct (single-pass duct system 3) is set up to implement the "exhaust-oriented, supply and exhaust combined, ductless air supply whole house bidirectional flow fresh air" technology. The whole-house bidirectional fresh air flow link in this embodiment, like the second embodiment, has three important nodes: the integrated module of internal circulation and fresh air replacement (whole-house internal circulation air conditioning system), the room air outlet (vertical air duct 201), and the room return air outlet 10.

[0075] In this embodiment, the power node, namely the integrated module of internal circulation and fresh air replacement, adds a fresh air function to the single power point internal circulation module. It treats outdoor fresh air with air conditioning and sends it into the public space of the room group, pushing the stale air in the room group to be extracted through the exhaust duct 106 and injected into the atmosphere at high speed for diffusion. This integrated module of internal circulation and fresh air replacement is the core of the whole house five constant system fresh air system. Specifically, it includes fresh air filtration, efficient dehumidification of fresh air in the high humidity of summer during the plum rain season, and fresh air heating and humidification structure and function in winter. It undertakes the task of regulating the freshness, cleanliness and humidity of the air in the building space. The whole-house circulating air conditioning system in this embodiment operates in two stages: duct fresh air replacement and room fresh air replacement. Phase 1: Fresh air replacement in the corridor The whole-house circulating air conditioning system injects filtered and dehumidified fresh air into the living room corridor. At the same time, it draws out the polluted air in the living room corridor through return air vents located far from or facing away from the room's air outlets. This stage first completes the fresh air replacement in the living room corridor, which serves as the fresh air channel for the rooms. Phase Two: Room Fresh Air Replacement The integrated module for internal circulation and fresh air replacement continuously injects fresh air after cooling and dehumidification into the living room corridor, establishing a slight positive pressure in the living room corridor; at the same time (or at staggered times), it draws out the stale air from each room through the return air vents 10 of each room, establishing a negative pressure state in each room; in this stage, the internal circulation power point 104 and the exhaust power point 109 of the whole house internal circulation air conditioning system jointly establish a pressure difference between the inside and outside of the room; driven by this pressure difference, the fresh air in the living room corridor passes through the passive vertical air ducts 201 on the side of each room door frame, is injected into the main space of the room, drives the stale air in the room into the return air duct, flows to the exhaust fan for pressurization and acceleration, and is then discharged into the atmosphere, realizing the fresh air replacement of the entire space of the room group. The advantages of this whole-house five-constant system are: ① Provide efficient, economical, and reliable fresh air systems for room clusters. In this embodiment, the vertical air duct 201 serves as an airflow channel connecting the room and the public space. Its structural feature of having its air inlet and outlet staggered and arranged in opposite directions not only promotes the two-dimensional movement of fresh airflow on the horizontal plane in shaping the airflow field of the room and the public space, but also drives 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, thereby constructing a three-dimensional flow field of fresh airflow in the interior space, eliminating blind spots in fresh air replacement, and improving fresh air replacement efficiency.

[0076] This embodiment uses an integrated module for internal circulation and fresh air replacement as the starting point for whole-house fresh air systems. It constructs a whole-house fresh air link that starts from and ends in the outdoor environment: "Ambient fresh air → Integrated module for internal circulation and fresh air replacement → Public space in living room and corridor → Room air outlet → Main room space → Room return air duct 302 → Main return air duct 301 → Exhaust air duct 106, exhaust power point 109 → Outdoor atmosphere". It develops the potential of the fresh air supply duct in the living room and corridor to implement "ductless air supply". Only one exhaust duct is set up, which solves the serious problem of duct space interference between the fresh air supply duct and the waste air return duct in the ceiling, as well as the problem of the fresh air supply duct and the radiant temperature control unit 9 competing for ceiling and floor space, 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 whole-house five constant system.

[0077] ② Provide a quiet, efficient, economical, and reliable air conditioning system for the room complex. 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 107 and the mode switching damper 108. In this embodiment, the airflow path of fresh air replacement and internal circulation air conditioning is the same. Both consist of a loop consisting of whole-house internal circulation air conditioning system → living room corridor public space → room → main return air duct 301, room return air duct 302 → whole-house internal circulation air conditioning system. The switching between the two modes of fresh air replacement and internal circulation air conditioning only occurs within the whole-house internal circulation air conditioning system. This embodiment not only integrates the indoor air conditioning units of all rooms, including public spaces, into a single internal circulation air conditioning module 1, 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 integrated internal circulation fresh air replacement module and set on the equipment platform 8 outside the room group, providing a quiet, efficient, economical, and reliable air conditioning system and fresh air system for the five constant room groups.

[0078] ③ Use high-volume airflow to meet the needs of large-volume fresh air replacement and air conditioning in the room group. 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 air conditioning system and a two-way fresh air system with only one exhaust duct. In this embodiment, the exhaust duct diameter can be increased to over φ220, and the fresh air volume or air conditioning recirculation volume is set to 700m³. 3 / h, the airflow velocity in the φ220 duct is only 5.1m / s. Compared with the existing fresh air system, the air volume in this embodiment is greatly increased while the airflow resistance and airflow noise are greatly reduced, creating conditions for the large-flow fresh air replacement and large-volume air conditioning of the five constant system. This embodiment may sometimes require the addition of a section of fresh air supply duct, such as the supply duct of the integrated internal circulation fresh air replacement module that crosses the bathroom into the public space, but this section of the outlet duct does not interfere with the exhaust duct in space.

[0079] ④ The technological ideal of "defining architecture based on air quality" has been realized. Reinforced concrete technology is a fundamental and platform technology in the construction field, but humans work and live in the air enclosed by reinforced concrete structures rather than in reinforced concrete itself. Therefore, 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".

[0080] Example 4 See Figures 14 to 17 This embodiment provides a whole-house recirculating air conditioning system based on embodiments one to three above, for a group of rooms, including multiple rooms and a common space connected to each room. The difference lies in changing the single-pipe bidirectional flow internal recirculation system with ductless air supply to the common space and ductless return to the rooms to a single-pipe bidirectional flow internal recirculation system with a combination of supply and exhaust, primarily supplying air, where air is supplied to the rooms and ductless return to the common space. The whole-house recirculating air conditioning system of this embodiment includes an internal recirculation air conditioning module 1 and an airflow relay channel 2.

[0081] The internal circulation air conditioning module 1 includes an internal circulation channel 103 connecting the air conditioning return air vent 101 and the air conditioning outlet 102, as well as an air conditioning heat exchange module and an internal circulation power point 104 arranged in the internal circulation channel 103. The internal circulation air conditioning module 1 is configured to create positive pressure at the room outlets in each room through the internal circulation power point 104 and a single-pass duct system 3 connecting the air conditioning outlet 102, introducing air-conditioned air that has undergone heat exchange treatment. Furthermore, the internal circulation air conditioning module 1 is configured to directly or indirectly draw return air into the public space through the internal circulation power point 104 and the air conditioning return air vent 101.

[0082] Airflow relay channel 2 corresponds one-to-one with the air outlet of the room, and airflow relay channel 2 is configured to connect the public space and the room.

[0083] In this embodiment, the aforementioned airflow relay channel 2 can also be a vertical duct 201. Furthermore, the room can also include a main space, a sub-space, and an internal relay channel (vertical duct 201), with the room's air outlet located within the main space.

[0084] In this embodiment, the single-pass duct system 3 delivers fresh air to each room to create a slight positive pressure, and through the negative pressure created in the public space by the internal circulation air conditioning module 1, a pressure difference is formed between the inside and outside of the room. This pressure difference then drives the airflow in the main room space to flow out to the public space through the vertical air duct 201, and is then drawn back by the internal circulation air conditioning module 1 for return air.

[0085] In this embodiment, the single-pass duct system 3 includes a main air outlet duct 303 and several room air outlet ducts 304. The internal circulation air conditioning module 1 is connected to each room air outlet duct 304 through the main air outlet duct 303, and the room air outlet ducts 304 are connected to each room to form room air outlets. The air conditioning return air outlet 101 can be directly or indirectly connected to the public space through a section of exhaust duct 5.

[0086] This embodiment of a whole-house indoor air circulation system includes three important nodes: an internal circulation air conditioning module 1, a room air outlet, and a vertical air duct 201.

[0087] In this embodiment, the room air outlet can also be equipped with a sleeve-type sliding air valve 7. The sleeve-type sliding air valve 7 has certain structural modifications, specifically including an inner cylinder 701, an outer cylinder 702, and a drive system.

[0088] The outer cylinder 702 includes a first overlapping area, a ventilation hole area, a second overlapping area, and an inner cylinder 701 dwelling area; the inner cylinder 701 includes a third overlapping area, a covering area, and a fourth overlapping area. The inner cylinder 701 and the outer cylinder 702 have the same cross-sectional structure, which can be one of the following: triangular, rectangular, grooved rectangular, cylindrical, semi-cylindrical, or isosceles trapezoidal.

[0089] Both the inner cylinder 701 and the outer cylinder 702 are columnar thin-walled structures, with the inner dimension of the outer cylinder 702 cross-section being slightly larger than the outer dimension of the inner cylinder 701.

[0090] The drive system includes a drive motor 704 and a push rod 703. The drive motor 704 and the push rod 703 are located inside the inner cylinder 701. A crossbeam is provided at the front end of the push rod 703, and the crossbeam is perpendicular to the push rod 703. The crossbeam is symmetrically arranged with axial straight gaps connecting to the inner cylinder 701 wall. The connection point between the push rod 703 and the crossbeam is located at or near the geometric center point of the inner cylinder 701 wall.

[0091] When the sleeve-type sliding air valve 7 is opened in this embodiment, the drive motor 704 and the push rod 703 push the inner cylinder 701 to slide on the inner surface of the outer cylinder 702. The inner cylinder 701 partially or entirely slides to the dwell area. The ventilation hole area on the wall of the inner cylinder 701 partially or completely overlaps with the ventilation opening of the outer cylinder 702. 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 701 and the outer cylinder 702. The stale air in the room then passes through the vertical air duct 201 and is discharged into the public space, thus implementing fresh air replacement in the room.

[0092] When the sleeve-type sliding air valve 7 is closed in this embodiment, the push rod 703 of the drive motor 704 pushes the inner cylinder 701 to slide on the inner surface of the outer cylinder 702. The inner cylinder 701 is completely removed from the residence area. The ventilation hole area on the wall of the inner cylinder 701 does not overlap with the ventilation opening of the outer cylinder 702. Under the positive pressure of the air supply module and the air supply pipeline, the cylinder wall of the inner cylinder 701 is pressed against the inner wall of the outer cylinder 702, the room air outlet is closed, and the room fresh air replacement is terminated.

[0093] This embodiment effectively shapes the fresh air flow field inside the room by combining the sleeve-type sliding air valve 7 at the room's air outlet and the airflow relay channel 2 (vertical air duct 201).

[0094] Furthermore, this embodiment can adopt the whole-house circulating air conditioning system described in Embodiment 3 above. Focusing on room ventilation, fresh air is delivered to each room through a single-pass air supply duct, and stale air from each room is collected in the living room, corridor, and public space before being discharged to the outdoor environment. This constructs a whole-house bidirectional fresh air flow link that starts from and ends in the outdoor environment: "Ambient fresh air → Internal circulation air conditioning module 1 → Main air outlet 303 → Room air outlet 304 → Room air outlet → Main room space → Vertical air duct 201 → Living room, corridor, and public space → Exhaust air duct 106 of internal circulation air conditioning module 1 → Outdoor environment".

[0095] This embodiment adopts a single-pipe air supply type, that is, a whole-house bidirectional fresh air replacement type with ductless exhaust and supply combined with supply as the main type. Its main supply air duct and exhaust air duct do not cross; the entire air path link is set with 2 power points; the air conditioning return air vent 101 of the internal circulation air conditioning module 1 is directly connected to the public space or connected to the public space through a section of exhaust air duct 5. Preferably, it is connected to the top space of the public space that is close to the return air vent 10 of each room through a section of exhaust air duct 5; this section of exhaust air duct 5 is short in length and large in diameter, and does not interfere with the main supply air duct. This embodiment describes a whole-house bidirectional fresh air system using a single-pass fresh air supply duct. The main components of the air path link are an internal circulation air conditioning module 1, a sleeve-type sliding air valve 7, and a vertical air duct 201.

[0096] The advantages of the whole-house indoor air conditioning system in this embodiment are: ① Increased the priority of fresh air intake in the room This embodiment explores the potential of the "exhaust duct" in the living room and hallway public space. Focusing on room ventilation, fresh air is preferentially delivered to each room through the air supply duct, and the exhaust air from each room is gathered in the living room and hallway public space and finally extracted by the exhaust module and discharged to the outdoor environment. This constructs a whole-house bidirectional fresh air flow open-loop link that starts from the outdoor environment and ends at the outdoor environment: "Ambient fresh air → Internal circulation air conditioning module 1 → Main air outlet 303 → Room air outlet 304 → Room air outlet → Main room space → Vertical air duct 201 → Living room and hallway public space → Exhaust duct 106 of internal circulation air conditioning module 1 → Outdoor environment".

[0097] In this embodiment, the development of a single-pipe whole-house bidirectional fresh air system using the living room and hallway public space as an exhaust duct enhances the priority of fresh air in the rooms. This solves the problems of ductless whole-house bidirectional fresh air systems that combine supply and exhaust with exhaust as the main function, which send polluted air from noisy public spaces into the rooms, and the potential for smoke, alcohol, and 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.

[0098] ② Provide efficient, economical, and clean fresh air systems for building spaces. In this embodiment, the vertical duct 201 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 interior space, eliminates blind spots in fresh air replacement, and improves fresh air replacement efficiency.

[0099] This embodiment only requires one set of fresh air supply duct (single-pass duct system 3), which solves the problems of severe spatial interference between the two sets of fresh air supply and waste air exhaust ducts and 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.

[0100] ③ Implement high-flow fresh air replacement The actual air volume of existing residential fresh air systems is mostly around 300m³. 3With 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 exhaust duct 303 and main return duct 301 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 width, not to expand the vertical space of the ceiling where supply and exhaust ducts 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 set of single-pass supply ducts. The diameter (or cross-sectional area of ​​the rectangular duct) 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 1 / h, the airflow velocity in the φ220 main air outlet duct 303 is only 4.4m / 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. Example 5 See Figure 13 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 circulating air conditioning system described in the above embodiment.

[0101] The five constant systems in this embodiment are 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.

[0102] The five constant systems in this embodiment serve a group of rooms. Taking the single-pass bidirectional flow fresh air system with a single exhaust pipe as an example, the corridor public space replaces the supply air duct. Only one set of exhaust duct (main return air duct 301, room return air duct 302) is set up to replace the two sets of traditional supply air ducts and exhaust air ducts to implement a "ductless supply and exhaust combined bidirectional flow fresh air system with exhaust as the main component". In this embodiment, the main air supply duct and exhaust duct of the constant air system do not intersect; the entire air path link is set with only 2 power points; the air outlet of the internal circulation air conditioning module 1 is directly connected to the public space or connected to the public space through a section of air supply duct 4, preferably connected to the top space of the public space that is close to the air outlet of each room through a section of air supply duct 4; this section of air supply duct 4 is short in length and large in diameter, and does not interfere with the main exhaust duct.

[0103] In this embodiment of the five constant systems, the internal circulation air conditioning module 1 of the fresh air system is configured to regulate the freshness, cleanliness, and humidity of the fresh air supplied to the public space. The five constant systems also include 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.

[0104] The internal circulation air conditioning module 1 of this embodiment will be described in detail below: This embodiment uses the active / passive vertical air duct 201 as the core node to construct a bidirectional fresh air link with two wind path power points, starting from the outdoor environment and ending at the outdoor environment: "Ambient fresh air → Internal circulation air conditioning module 1 → Corridor public space → Room vertical air duct 201 → Room main space → Room return air duct 302 → Residential unit exhaust air duct (main return air duct 301) → Exhaust air flow channel 106 of internal circulation air conditioning module 1 → Outdoor atmosphere".

[0105] The internal circulation air conditioning module 1 of the five constant systems in this embodiment includes a fresh air filtration, summer fresh air cooling and dehumidification, and winter fresh air heating and humidification unit 110, which undertakes the task of regulating the air freshness, cleanliness, temperature and humidity in the building space. The internal circulation air conditioning module 1 of the five constant systems in this embodiment also includes an exhaust power point 109 (centrifugal fan) and an exhaust duct 106, which are responsible for pressurizing and accelerating the exhaust of the sewage air sent from the return air vents 10 of each room and the exhaust ducts (main return air duct 301, room return air duct 302) into the atmosphere. The operation of the constant system in this embodiment is divided into two stages: In the first stage, the corridor serving as the air supply channel is cleaned. The internal circulation air conditioning module 1 injects filtered and dehumidified fresh air into the corridor. Its internal exhaust air passage point is located in the corridor at a position far from the air supply outlet of the internal circulation air conditioning module 1. The stale air in the corridor is extracted through the living room return air vent (which can be connected to the main return air duct 3015 through the living room exhaust duct). This stage first completes the fresh air replacement in the corridor.

[0106] In the second stage, fresh air replacement in each room is achieved by the internal circulation air conditioning module 1 continuously injecting filtered and dehumidified fresh air into the corridor, establishing a slight positive pressure in the corridor. Simultaneously (or at staggered times), the exhaust power point 109 in the internal circulation air conditioning module 1 extracts stale air from each room, establishing a negative pressure state in each room. In this stage, the internal circulation power point 104 and the exhaust power point 109 together establish a pressure difference between the first air outlet 202 and the second air outlet 203 of the vertical air duct 201. Driven by this pressure difference, the fresh air in the corridor flows from bottom to top through the vertical air duct 201 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 the entire space of the suite.

[0107] The control targets and responsibilities of the constant temperature 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 ensures that the dew point temperature of the indoor air is significantly lower than the surface temperature of the radiant cooling surface (mainly the capillary plaster surface 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).

[0108] Condensation is a critical and common problem for radiant temperature control systems in cooling mode. The most direct and serious impact is damage to the building structure and finishes. Since radiant temperature control units 97 are typically located 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 97 located 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.

[0109] 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 equipment platform 8) and several radiant temperature control units 9 connected to the air conditioning water chiller. The radiant temperature control units 9 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 9 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 9, 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 9. The radiant temperature control unit 9 may be a radiant panel or a capillary water circuit.

[0110] The air conditioning water chiller may specifically include a refrigerant circuit consisting of a compressor 112, a condenser, a throttling valve, and an evaporator, a control system, and a hydraulic module. The hydraulic module provides the circulating power for 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.

[0111] 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 97 set in various rooms, public spaces and other areas.

[0112] Based on this, the air conditioning outdoor units that were originally located in each room can be merged and integrated into an air conditioning water chiller located on the equipment platform 8. The air conditioning water chiller 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 9, or deliver it to the radiant temperature control unit 9 via a hydraulic module.

[0113] 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) of the exterior facade of the equipment platform 8 to construct a low-resistance air outlet for the external heat exchanger 118 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.

[0114] In this embodiment, the air conditioning unit 6 and the whole-house circulating air conditioning system are both centrally located on the equipment platform 8. The refrigerant circuit of the air conditioning unit 6 is connected to both the finned tube heat exchanger refrigerant circuit of the main air inlet and outlet module and the refrigerant circuit of the refrigerant water heat exchanger used to supply cold (hot) water to the capillary radiant cooling and heating system in the indoor space. This embodiment is equipped with a central controller and sensors for temperature, humidity, gas composition, airflow speed, and water flow temperature and speed. It implements unified control of the air, water, and refrigerant resources required for managing the temperature, humidity, and freshness of the room complex. The central controller collects parameters such as temperature, humidity, oxygen content, and airflow and water flow speed of the indoor and outdoor environment through sensors. Based on user target settings and algorithms, it adjusts the speed and opening of compressor 112, four-way valve, solenoid valve, electronic expansion valve, fan, and water pump. This allows for centralized and unified allocation and control of the refrigerant flow rate and air volume of the finned tube refrigerant circuit of the main air inlet and outlet module, the refrigerant flow rate and water flow rate of the radiant cooling and heating refrigerant-water heat exchanger, and the air pressure and air volume of the air conditioning unit 6 external heat exchanger 118. This achieves the target values ​​for temperature, humidity, freshness, and cleanliness of the target space. In this embodiment, the finned tube heat exchanger in the whole-house circulating air conditioning system is arranged adjacent to the air conditioning unit 6, resulting in a short refrigerant path and high energy efficiency. The air path in this embodiment features a single-pipe pass with a large air volume and bidirectional flow. Therefore, the main air intake and exhaust module of the fresh air system in this embodiment has high cooling and heating intensity, fast cooling and heating speed, and fast temperature and humidity adjustment response for the indoor space. It has explosive power to regulate the temperature, humidity, cleanliness, and freshness of the indoor space, thus forming a distinct temporal and spatial complementarity and capacity complementarity with the capillary radiant cooling (heating) system in the apartment space, which has the characteristics of "slow and meticulous" operation. This embodiment features a powerful air conditioning unit 6 with strong cooling and heating capabilities. During startup, the user can simultaneously use the whole-house circulating air conditioning system to quickly achieve target values ​​for indoor temperature, humidity, cleanliness, and freshness to ensure comfort, while using the capillary radiant cooling (heating) system to adjust the temperature of the building envelope, including walls, floors, and ceilings. Once the building envelope temperature reaches the target value, the indoor temperature control task shifts from the fresh air system to the capillary radiant cooling and heating system, while the whole-house circulating air conditioning system focuses on regulating indoor humidity, freshness, and cleanliness. If the cooling and heating capacity of the air conditioning unit 6 is insufficient to simultaneously drive both the whole-house circulating air conditioning system and the radiant cooling and heating system, the user can prioritize the temperature, humidity, freshness, and cleanliness requirements of the indoor spaces with higher priority via priority settings on the central controller, before addressing the needs of other spaces.

[0115] The advantages of this embodiment are: ① Leverage the advantages of capillary radiant cooling and heating systems This embodiment uses a whole-house circulating air conditioning system superimposed with a capillary radiant cooling and heating system as a fresh air conditioning solution for the room group, giving full play to the advantages of the capillary radiant cooling and heating system. In this embodiment, the capillary radiant cooling (heating) system uses a network of radiant temperature-regulating units 9 laid on the ceiling, floor, and walls to exchange heat "area" for heat "intensity". In summer, the indoor space's cooling water supply temperature is raised to 18-21℃, the evaporation pressure on the refrigerant side of the refrigerant heat exchanger is high, the compression ratio of the air conditioning unit 6 is low, and the refrigerant system has high energy efficiency. In winter, the heating water supply temperature is lowered to 30-35℃, the condensation pressure on the refrigerant side of the refrigerant heat exchanger is low, the compression ratio of the air conditioning unit 6 is low, and the refrigerant system has high energy efficiency. In this embodiment, the advantages of the capillary radiant cooling and heating system, which is the hallmark of the "five constants" air conditioning system (constant temperature, constant humidity, constant oxygen, constant cleanliness, and constant quietness), such as noiselessness, high energy efficiency, and high spatial uniformity, are fully inherited and utilized.

[0116] ②Address the shortcomings of capillary radiant cooling and heating systems While capillary radiant cooling (heating) systems have outstanding advantages such as being noiseless, highly energy-efficient, and having high spatial uniformity, they also suffer from problems such as high thermal inertia and long start-up time. In this embodiment, the whole-house circulating air conditioning system is used in combination with the capillary radiant cooling and heating system. When starting up, the user uses the high-volume fresh air system to drive the indoor space temperature, humidity, cleanliness and freshness indicators to quickly reach the target values ​​to achieve comfort, while the capillary radiant cooling (heating) system drives the temperature adjustment of the building envelope such as walls, floors and ceilings. After the temperature of the building envelope is adjusted to the target value, the task of regulating the indoor space temperature is transferred from the whole-house circulating air conditioning system to the capillary radiant cooling and heating system, while the whole-house circulating air conditioning system focuses on regulating and controlling the humidity, freshness and cleanliness of the indoor space.

[0117] This embodiment inherits and leverages the advantages of capillary radiant cooling (heating) systems, such as noiselessness, high energy efficiency, and high spatial uniformity, while overcoming the problems of large thermal inertia and long start-up time, thus addressing the shortcomings of capillary radiant cooling and heating systems.

[0118] Example 6 See Figure 18 , Figure 19This embodiment further provides a fresh air module based on the above embodiments. Based on the above air conditioning heat exchange module, the fresh air module also includes a second finned tube heat exchanger 111, which is arranged downstream of the air conditioning finned tube heat exchanger 105. This system forms a three-pipe fresh air module, delivering fresh / return air to each room through supply air ducts and converging exhaust air from each room into the living room corridor before finally venting it to the ambient atmosphere. It constructs a bidirectional fresh air flow link for the room group, starting and ending in the environment: "Ambient fresh air → Fresh air module → Fresh air supply main pipeline (main outlet duct 303) → Fresh air supply branch pipeline (room outlet duct 304) → Room and storage system inlet damper (sleeve-type sliding damper 7) → Main room space → Room outlet damper (vertical duct 201) → Room group corridor → Exhaust module → Ambient atmosphere." Furthermore, it uses only one single-pass supply air duct instead of the traditional two sets of supply and exhaust ducts to implement a "ductless exhaust combined with supply and exhaust, supply-oriented bidirectional fresh air system for the room group." The air conditioning finned tube heat exchanger 105 and the second finned tube heat exchanger 111 of the finned tube assembly each have their own lotus head, manifold, and electronic expansion valve, and are two independent terminals of the refrigeration and air conditioning system that can independently control the refrigerant flow.

[0119] The difference between this embodiment of the three-pipe intake pre-cooling deep dehumidification and outlet air heating fresh air module 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.

[0120] This embodiment of a three-pipe intake pre-cooling deep dehumidification and outlet air heating fresh air system includes two parts: a three-pipe air conditioning unit 6 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 112 is equipped with two four-way valves. The first four-way valve 113 connects the compressor 112 inlet, outlet, external heat exchanger 118, first electronic expansion valve 115, second electronic expansion valve 116, third electronic expansion valve 117, air conditioning finned tube heat exchanger 105, and second finned tube heat exchanger 111. The second four-way valve 114 is connected in parallel with the first four-way valve 113 to the compressor 112 inlet, outlet, third electronic expansion valve 117, and second finned tube heat exchanger 111. It has three operating modes: air conditioning finned tube heat exchanger 105 cooling, second finned tube heat exchanger 111 cooling, air conditioning finned tube heat exchanger 105 heating, second finned tube heat exchanger 111 heating, and air conditioning finned tube heat exchanger 105 cooling and second finned tube heat exchanger 111 heating.

[0121] In the third operating mode, where the air conditioning finned tube heat exchanger 105 cools and the second finned tube heat exchanger 111 heats, the compressor 112, the first four-way valve 113, the second four-way valve 114, the first electronic expansion valve 115, the second electronic expansion valve 116, the third electronic expansion valve 117, the air conditioning finned tube heat exchanger 105, and the second finned tube heat exchanger 111 in the refrigerant circuit are linked together. Furthermore, they work in coordination with the cross-flow heat exchanger in the airflow circuit, the air conditioning finned tube heat exchanger 105, the second finned tube heat exchanger 111, and the centrifugal fan unit 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 112 flows through the second four-way valve 114 and enters the high-low pressure pipe, which is then sent to the second finned tube heat exchanger 111. In the second finned tube heat exchanger 111, the gas releases heat and condenses into liquid. The refrigerant condensate flows through the third electronic expansion valve 117 and the second electronic expansion valve 116, and enters the air conditioning finned tube heat exchanger 105 to absorb heat and vaporize into low-pressure refrigerant gas. It flows through the gas pipe back to the first four-way valve 113 and then back to the suction port of the compressor 112. It is then drawn into the compressor 112, pressurized, and discharged to the second four-way valve 114 and the high-low pressure pipe to start the next cycle. From the airflow perspective, during fresh air dehumidification and heating operation, the low-temperature and high-humidity fresh air enters the evaporator (air conditioning finned tube heat exchanger 105) for cooling and dehumidification. The dehumidified fresh air then enters the condenser (second finned tube heat exchanger 111) for heating. In the airflow path of the main air inlet and outlet module, the fresh air undergoes two heat exchanges: cooling and dehumidification, and heating. This achieves energy coupling between the refrigerant path and the airflow path, and realizes the transfer of the "latent heat" of water vapor in the fresh airflow to the "sensible heat" of the fresh air, thus becoming high-temperature and low-humidity fresh air. Finally, it is injected into the low-temperature and high-humidity indoor space under the humid weather scenario.

[0122] The primary application scenario for this embodiment is the return of spring weather; During the "return to spring" season in southern coastal areas such as Guangdong and Fujian, the ambient air temperature initially drops and then rises. In the early stages, influenced by factors such as cold air masses from the north, the ambient temperature is around 10-15℃. Later, under the control of warm and humid air currents from the ocean, the ambient temperature rapidly rises to 20-25℃. This results in large-scale condensation on the surfaces of low-temperature buildings and indoor objects, which are still around 15℃, making them damp. However, the problem with the "return to spring" season is the high humidity, while the temperature remains within a suitable range. Therefore, introducing dry and hot fresh air that has been "dehumidified" and "heated" into indoor spaces is the core requirement for air conditioning during the "return to spring" season.

[0123] This embodiment describes a three-pipe inlet pre-cooling, deep dehumidification, and outlet heating fresh air system. Under the humid weather conditions, it implements an operation scheme of "air conditioning finned tube heat exchanger 105 cooling and second finned tube heat exchanger 111 heating". It performs one cooling and dehumidification and one heating on the fresh air flow, realizing the energy coupling between the refrigerant circuit and the air circuit of the fresh air system, and realizing the transfer of the "latent heat" of water vapor in the fresh air flow to the "sensible heat" of the fresh air during the humid weather conditions.

[0124] The particular advantage of this embodiment of a three-pipe intake pre-cooling deep dehumidification and outlet heating fresh air system lies in the fact that, through two heat exchanges between the fresh air and refrigerant in the main intake and outlet air path, a total of heat absorption by the evaporator and heat release by the condenser are generated to produce high-temperature, low-humidity, dry fresh air that is injected into the indoor space. This heats and dehumidifies the indoor space and low-temperature objects under the humid weather conditions, reducing the absolute humidity and water vapor partial pressure of the indoor space, while also 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." It fundamentally solves the problem of low-temperature, high-humidity condensation in the indoor space of buildings under meteorological conditions such as the humid weather in the southern coastal areas.

[0125] 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 whole-house indoor air conditioning 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 recirculating air conditioning system includes: An internal circulation air conditioning module is arranged on an equipment platform or in an equipment room. The internal circulation air conditioning module has an internal circulation channel connecting the air conditioning return air vent and the air conditioning outlet, as well as an air conditioning heat exchange module and an internal circulation power point arranged in the internal circulation channel. The internal circulation air conditioning module is configured to directly or indirectly introduce heat-treated air conditioning air into the public space through the internal circulation power point and the air conditioning outlet. The internal circulation air conditioning module is also configured to form room return air vents in each room through the internal circulation power point and a single-pass duct system connecting the air conditioning return air vent to extract and collect return air. An airflow relay channel corresponds one-to-one with the room return air vent, and the airflow relay channel is configured to connect the public space and the room.

2. The whole-house indoor air conditioning system as described in claim 1, characterized in that, The air conditioning heat exchange module is an air conditioning finned tube heat exchanger; the air conditioning finned tube heat exchanger and the air conditioning unit cooperate to form a closed-loop refrigerant circulation system, or the air conditioning finned tube heat exchanger and the air conditioning unit or hydraulic module cooperate to form a closed-loop water circulation system.

3. The whole-house indoor air conditioning system as described in claim 1, characterized in that, The single-pass piping system includes a main return air duct and several room return air ducts; The air conditioner outlet is directly connected to the public space or through a section of air supply duct; the air conditioner return air outlet is connected to the return air duct of each room through the main return air duct, and the room return air duct extends into the room to form the room return air outlet.

4. The whole-house indoor air conditioning system as described in claim 1, characterized in that, The airflow relay channel is a vertical duct. The vertical 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 connected by a duct flow channel formed by the inner wall of the vertical duct. The 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 airflow 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 are connected by a duct flow channel formed by the inner wall of the door. The duct flow channel is used to dissipate sound wave transmission between the public space and the room and to guide or drive the flow of fresh air.

5. The whole-house indoor air conditioning system as described in claim 4, characterized in that, The first air outlet is positioned either low or high, and the second air outlet is equipped with a guide vane structure for adjusting the airflow direction.

6. The whole-house indoor air conditioning system as described in claim 4, characterized in that, The vertical ventilation duct is installed or integrated into the door frame.

7. The whole-house indoor air conditioning system as described in claim 4, characterized in that, The internal circulation power point is a centrifugal fan.

8. The whole-house indoor air conditioning system as described in claim 1, characterized in that, The room return air vent is equipped with a sleeve-type sliding air valve, which includes an outer cylinder, an inner cylinder, an extension, and a drive mechanism. The outer cylinder and the inner cylinder are nested together and slide relative to each other, and the outer cylinder and the inner cylinder are configured to switch between a closed configuration and a ventilated configuration; the inner cylinder is provided with a ventilation area extending along the sliding direction, and the ventilation area is provided with a plurality of ventilation holes; the inner ring surface of the outer cylinder is provided with a first fitting area and a second fitting area arranged at intervals along the sliding direction, and a sealed covering area is formed between the first fitting area and the second fitting area; the two ends of the extension member are opposite to each other and are respectively connected to the outer cylinder, and the extension member is configured such that its connection point overlaps with the geometric center of the outer cylinder wall; the drive mechanism is installed on the inner cylinder, and the drive end of the drive mechanism is connected to the connection point, and the movement trajectory of the drive end is located at the geometric center of the outer cylinder wall; In the closed configuration, the drive end of the drive mechanism moves the outer cylinder to the sealed coverage area, covering the entire ventilation area; in the open configuration, the drive end of the drive mechanism moves the outer cylinder to the sealed coverage area, covering part or not covering the ventilation area.

9. The whole-house indoor air conditioning system as described in claim 1, characterized in that, The internal circulation air conditioning module also includes an internal circulation air conditioning housing, which has an air return air inlet, a return air duct, an air outlet duct, and an air outlet connected in sequence; wherein the return air duct and the air outlet duct cooperate to form the internal circulation duct.

10. The whole-house indoor air conditioning system as described in claim 9, characterized in that, The internal circulation air conditioner housing is also equipped with an exhaust duct, a fresh air damper, and a mode switching damper; The air outlet duct includes a fresh air inlet and a first return air outlet; the exhaust duct includes a second return air outlet and an exhaust power point arranged therein; the output end of the return air duct is connected to the first return air outlet and the second return air outlet respectively; Along the airflow direction, the fresh air inlet, the air conditioning heat exchange module, and the internal circulation power point are arranged sequentially in the air outlet duct. The fresh air damper is installed at the fresh air inlet and is configured to open or close the fresh air inlet. The 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.

11. The whole-house indoor air conditioning system as described in claim 10, 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.

12. The whole-house indoor air conditioning system as described in claim 10, characterized in that, The internal circulation air conditioner housing is also equipped with a humidification unit, and the humidification end of the humidification unit is arranged at the output end of the internal circulation power point.

13. A whole-house indoor air conditioning 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 recirculating air conditioning system includes: An internal circulation air conditioning module, wherein the internal circulation air conditioning module is provided with an internal circulation channel connecting the air conditioning return air vent and the air conditioning outlet, and an air conditioning heat exchange module and an internal circulation power point arranged in the internal circulation channel. The internal circulation air conditioning module is configured to create positive pressure at the room outlet in each of the rooms through the internal circulation power point and a single-pass pipeline system connecting the air conditioning outlet, and to introduce air-conditioned air that has undergone heat exchange treatment; and the internal circulation air conditioning module is configured to directly or indirectly draw return air into the public space through the internal circulation power point and the air conditioning return air outlet. An airflow relay channel corresponds one-to-one with the air outlet of the room, and the airflow relay channel is configured to connect the public space and the room.

14. The whole-house indoor air conditioning system as described in claim 13, characterized in that, The room air outlet is equipped with a sleeve-type sliding air valve, which includes an outer cylinder, an inner cylinder, an extension, and a drive mechanism. The outer cylinder and the inner cylinder are nested together and slide relative to each other, and the outer cylinder and the inner cylinder are configured to switch between a closed configuration and a ventilated configuration; the outer cylinder has a ventilation area extending along the sliding direction, and the ventilation area has a plurality of ventilation holes; the inner ring surface of the inner cylinder has a first fitting area and a second fitting area arranged at intervals along the sliding direction, and a sealed covering area is formed between the first fitting area and the second fitting area; the two ends of the extension member are opposite to each other and are respectively connected to the inner cylinder, and the extension member is configured such that its connection point overlaps with the geometric center of the inner cylinder wall; the drive mechanism is mounted on the outer cylinder, and the drive end of the drive mechanism is connected to the connection point, and the movement trajectory of the drive end is located at the geometric center of the inner cylinder wall; In the closed configuration, the drive end of the drive mechanism moves the inner cylinder to the sealed coverage area, covering the entire ventilation area; in the open configuration, the drive end of the drive mechanism moves the inner cylinder to the sealed coverage area, covering part or not covering the ventilation area.

15. A whole-house five-constant system, characterized in that, The whole-house circulating air conditioning system as described in any one of claims 1 to 14, wherein the whole-house five constant systems further includes 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 below the floor and / or on the side walls.

16. The whole-house five-constant system as described in claim 15, 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.

17. The whole-house five-constant system as described in claim 16, characterized in that, The fluorine circuit system is equipped with a finned tube external heat exchanger assembly located in the equipment room or 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 room or equipment platform.

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