All-air system for residence

Abstract

The invention discloses an all-air system for a house, and relates to the technical field of air systems. The all-air system for the residence comprises an air handling unit which comprises an air supply space, a fresh air space, an air return space and an air exhaust space. The air supply space is internally provided with a first fan, and the first fan is used for supplying air into a room; a fresh air opening is formed in the fresh air space, outdoor air enters the fresh air space through the fresh air opening, and the fresh air space communicates with the air supply space; the air return space is provided with an air return opening, the air return opening is used for enabling indoor air to enter the air return space, and the air return space communicates with the air supply space; and the air exhaust space communicates with the air return space, an air exhaust opening is formed in the air exhaust space, and the air exhaust opening is used for exhausting indoor air to the outside. Space needed by a fresh air system and a return air system is integrated, pipelines needed in the air supply process can be reduced, and therefore the space occupancy rate of the all-air system can be reduced.

Description

Technical Field

[0001] This invention relates to the field of air system technology, and in particular to an all-air system for residential use. Background Technology

[0002] Currently, residential buildings mainly use multi-split and split-system air conditioning for cooling and dehumidification. With the improvement of living standards, some villas and mansions are now using all-air systems, which have advantages such as high comfort, quiet operation, and excellent air quality.

[0003] However, all-air systems have the following problems: 1. Air ducts occupy floor height. All-air systems require large-sized air ducts, which are difficult to adapt to the floor height restrictions of ordinary single-story residential buildings. 2. The equipment occupies space and requires a separate equipment room or a large installation space, so ordinary single-story houses are not easy to meet this condition. 3. It has limitations; a single all-air system cannot meet the temperature requirements of different rooms.

[0004] Therefore, there is a need for a full-air system suitable for ordinary single-story residential buildings. Summary of the Invention

[0005] In view of the deficiencies in the existing technology, the technical problem solved by the present invention is: how to reduce the space occupancy rate of the all-air system.

[0006] To achieve the above objectives, the present invention provides a residential all-air system comprising: An air handling unit includes a supply air space, a fresh air space, a return air space, and an exhaust air space; The air supply space is equipped with a first fan, which is used to deliver air into the room; The fresh air space is equipped with fresh air inlets, which allow outdoor air to enter the fresh air space. The fresh air space is connected to the air supply space. The return air space is equipped with a return air vent, which is used for indoor air to enter the return air space. The return air space is connected to the supply air space. The exhaust space is connected to the return air space. The exhaust space is equipped with exhaust vents, which are used to exhaust indoor air to the outside.

[0007] By adopting the above technical solution, the fresh air system and return air system of the all-air system are integrated. Outdoor air enters the system through the fresh air space, and then outdoor air is delivered into the room through the supply air space. Indoor air is delivered into the return air space through the return air vent. Part of the indoor air delivered into the return air space is filtered and then re-enters the supply air space, while the remainder is delivered into the exhaust air space and discharged to the outside through the exhaust vent. Therefore, this all-air system integrates the space required for the fresh air system and return air system, and also reduces the ductwork required during the air supply process, thus reducing the space occupancy rate of the all-air system.

[0008] In one embodiment, the fresh air space is provided with two first air heat exchangers, each equipped with a filter. The fresh air space is divided into a first channel, a second channel, and a third channel by the first air heat exchangers. The fresh air inlet is located in the first channel, and the third channel is connected to the air supply space through a second fan.

[0009] By adopting the above technical solution, outdoor air can be filtered and heated before being sent indoors, thus providing high-quality air.

[0010] In one embodiment, a dehumidification component is provided inside the second channel, and the second channel is divided into a first space and a second space by the dehumidification component.

[0011] By adopting the above technical solutions, it is convenient to humidify or dehumidify the air before it is delivered into the room. At the same time, there is no need to install additional pipelines for humidification or dehumidification, further reducing the space occupation of the all-air system.

[0012] In one embodiment, the return air space and the exhaust air space are connected through a second air heat exchanger, which is equipped with a filter. The second air heat exchanger, the dehumidification component, and the partition wall form a third space.

[0013] By adopting the above technical solution, indoor air is sent into the exhaust space and then exhausted to the outside; and the indoor air can be heat exchanged to provide a cold and heat source for the second air heat exchanger, so as to achieve the purpose of saving energy. At the same time, the indoor air transfers moisture to the fresh air or absorbs some of the moisture from the fresh air, thereby performing additional humidification or dehumidification of the fresh air, thus saving energy consumption.

[0014] In one embodiment, the all-air system further includes a heat source unit, which includes a dehumidification module heat source and a fresh air compressor installed inside the exhaust space. The dehumidification module heat source, the fresh air compressor, the first air heat exchanger, and the second air heat exchanger are connected through a refrigerant pipe to provide heat source to the first air heat exchanger and the second air heat exchanger.

[0015] By adopting the above technical solution, it is convenient to transfer the cold and heat source to the first air heat exchanger. The cold and heat source absorbed by the second air heat exchanger can also be transferred to the first air heat exchanger, thereby regulating the temperature of the fresh air before it enters the room.

[0016] In one embodiment, the return air space and the supply air space are connected through a third air heat exchanger, which is equipped with a filter. The cold and heat source unit also includes a refrigeration module cold and heat source, a return air compressor, and a controller. The refrigeration module cold and heat source, the return air compressor, and the third air heat exchanger are connected through a refrigerant pipe to provide a cold and heat source to the third air heat exchanger. The controller is used to control the all-air system.

[0017] By adopting the above technical solution, it is easy to transfer the cold and heat source to the third air heat exchanger, so that the temperature of the return air can be regulated before entering the room.

[0018] In one embodiment, the dehumidification assembly includes a first dehumidification rotor and a second dehumidification rotor, the first dehumidification rotor being located in a second channel, the second dehumidification rotor being located in an exhaust space, and an isolation plate being provided between the first dehumidification rotor and the second dehumidification rotor.

[0019] By adopting the above technical solution, it is possible to humidify or dehumidify the fresh air by exhaust air, and to isolate the fresh air space and the exhaust space to prevent bad air from re-entering the room. At the same time, the above operations can be completed by the same dehumidification component, so the equipment space can be further reduced, thereby further reducing the space occupation rate of the all-air system.

[0020] In one embodiment, the air outlet of the first fan is connected to the room through an air supply assembly, which includes a main air supply pipe, a static pressure box, and branch pipes. The first fan is connected to the static pressure box through the main air supply pipe, and the static pressure box is connected to the room through the branch pipes.

[0021] By adopting the above technical solution, fresh air and return air are delivered to the designated rooms.

[0022] In one embodiment, a sound-absorbing component is provided at the end of the branch pipe near the room. The sound-absorbing component includes a sound-absorbing flexible tube and an elbow air inlet. The sound-absorbing flexible tube is sleeved on the branch pipe, and the elbow air inlet is connected to the end of the branch pipe. The elbow air inlet includes an air inlet pipe, a bend pipe, and an air outlet pipe. The air inlet pipe and the air outlet pipe are connected by the bend pipe. The diameter of the air outlet pipe gradually increases, and the diameter is largest at the end of the air outlet pipe away from the bend pipe. A windproof mesh is provided inside the air outlet pipe to slow down the airflow.

[0023] By adopting the above technical solutions, the wind speed entering the room is reduced, which not only makes the blowing air more comfortable, but also reduces the noise caused by the blowing air.

[0024] In one embodiment, the static pressure box has two branch pipes between it and a room, and each branch pipe is equipped with an air volume regulator. The port of one branch pipe is located on the top surface of the room, and the port of the other branch pipe is located on the bottom surface of the room.

[0025] By adopting the above technical solution, the branch pipe from which air is delivered can be selected according to different air blowing needs.

[0026] In summary, the present invention has at least one of the following beneficial technical effects: 1. By integrating the fresh air system and return air system of the all-air system, outdoor air is introduced into the system through the fresh air space, and then delivered into the room through the supply air space. Indoor air is then delivered into the return air space through the return air vent. Part of the indoor air delivered into the return air space is filtered and then re-enters the supply air space, while the remainder is delivered into the exhaust air space and discharged to the outside through the exhaust vent. Therefore, this all-air system integrates the space required for the fresh air system and return air system, and also reduces the ductwork required during the air supply process, thus reducing the space occupation rate of the all-air system. 2. Through the specific design of the dehumidification component, it is possible to humidify or dehumidify the fresh air by exhaust air, and to isolate the fresh air space and the exhaust space to prevent bad air from re-entering the room; at the same time, the above operations can be completed by the same dehumidification component, so the equipment space can be further reduced, thereby further reducing the space occupation rate of the all-air system. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of an all-air system for residential use according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the fresh air space according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the return air space and exhaust air space according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the air supply assembly according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the elbow air inlet in an embodiment of the present invention.

[0028] In the diagram: 1-Air handling unit, 101-Supply air space, 102-Fresh air space, 1201-First channel, 1202-Second channel, 1203-Third channel, 103-Return air space, 104-Exhaust air space, 2-Heat / cold source unit, 201-Wet module heat / cold source, 202-Refrigeration module heat / cold source, 203-Controller, 3-Fresh air inlet, 4-Exhaust air outlet, 5-First fan, 6-Supply air outlet, 7-Refrigerant pipe, 8-Return air outlet, 9-First air heat exchanger, 10-Second fan, 11-First space, 12-Second space 13-Dehumidification component, 1301-First dehumidification impeller, 1302-Isolation plate, 1303-Second dehumidification impeller, 14-Filter, 15-Second air heat exchanger, 16-Third air heat exchanger, 17-Fresh air compressor, 18-Photocatalyst, 19-Negative oxygen ion generator, 20-Main air supply pipe, 21-Static pressure box, 22-Branch pipe, 23-Air volume regulator, 24-Silenced flexible hose, 25-Elbow air inlet, 2501-Inlet pipe, 2502-Bent pipe, 2503-Outlet pipe, 2504-Wind deflector, 26-Room. Detailed Implementation

[0029] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] The all-air system for residential use in this invention embodiment is shown in [reference]. Figure 1 As shown, the all-air system for residential use includes an air handling unit 1, which includes a supply air space 101, a fresh air space 102, a return air space 103, and an exhaust air space 104. The supply air space 101 is equipped with a first fan 5, which supplies air into the room. The fresh air space 102 is equipped with a fresh air inlet 3, which allows outdoor air to enter the fresh air space 102, and the fresh air space 102 is connected to the supply air space 101. The return air space 103 is equipped with a return air inlet 8, which allows indoor air to enter the return air space 103, and the return air space 103 is connected to the supply air space 101. The exhaust air space 104 is connected to the return air space 103, and is equipped with an exhaust vent 4, which exhausts indoor air to the outside.

[0031] Therefore, this invention integrates the fresh air system and return air system of the all-air system. Outdoor air enters the system through the fresh air space 102, and then outdoor air is delivered into the room through the supply air space 101. Indoor air is then delivered into the return air space 103 through the return air vent 8. Part of the indoor air delivered into the return air space 103 is filtered and then re-enters the supply air space 101. The remainder is delivered into the exhaust air space 104 and discharged to the outside through the exhaust air vent 4. Thus, this all-air system integrates the space required for the fresh air system and the return air system, and also reduces the ductwork required during the air supply process, thereby reducing the space occupancy rate of the all-air system.

[0032] Preferred, see Figure 2 As shown, the fresh air space 102 is equipped with two first air heat exchangers 9. Each first air heat exchanger 9 is equipped with a filter 14. The fresh air space 102 is divided into a first channel 1201, a second channel 1202 and a third channel 1203 by the first air heat exchangers 9. The fresh air inlet 3 is located in the first channel 1201. The third channel 1203 is connected to the air supply space 101 through the second fan 10.

[0033] Specifically, two first air heat exchangers 9 are installed along the direction of fresh air flow. The first air heat exchangers 9 divide the fresh air space 102 into a first channel 1201, a second channel 1202 and a third channel 1203. Fresh air enters from the fresh air inlet 3 of the first channel 1201, passes through the first channel 1201, the second channel 1202 and the third channel 1203 in sequence, and is finally sent into the air supply space 101. After filtration and temperature adjustment, the fresh air forms high-quality air and is sent into the room.

[0034] Furthermore, Figure 2 As shown, a dehumidification component 13 is provided inside the second channel 1202, and the second channel 1202 is divided into a first space 11 and a second space 12 by the dehumidification component 13.

[0035] Specifically, after being filtered and temperature-controlled once, the fresh air enters the first space 11, and then enters the second space 12 through the dehumidification component 13. After being dehumidified or humidified, the temperature of the fresh air will change, so it needs to be temperature-controlled again through the first air heat exchanger 9. The above design facilitates humidification or dehumidification of the air before it is delivered into the room. At the same time, no additional ductwork is required for humidification or dehumidification, further reducing the space occupancy of the all-air system.

[0036] It should be noted that the dehumidification component 13 can both humidify and dehumidify the air; for example, in summer, it is necessary to dehumidify the fresh air coming in from the outside, and in winter, it is necessary to humidify the fresh air coming in from the outside.

[0037] Preferred, see Figure 3 As shown, the return air space 103 and the exhaust air space 104 are connected through a second air heat exchanger 15. A filter 14 is installed on the second air heat exchanger 15. The second air heat exchanger 15, the dehumidification component 13 and the partition wall form a third space.

[0038] Specifically, indoor air is sent into the exhaust space 104 and then exhausted to the outside; and the indoor air can be heat exchanged to provide a cold and heat source for the second air heat exchanger 15 to achieve the purpose of saving energy. At the same time, the indoor air transfers moisture to the fresh air or absorbs some of the moisture from the fresh air, thereby additionally humidifying or dehumidifying the fresh air, thus saving energy consumption.

[0039] Preferred, see Figure 1 As shown, the all-air system also includes a heat source unit 2, which includes a dehumidification module heat source 201. A fresh air compressor 17 is installed inside the exhaust space 104. The dehumidification module heat source 201, the fresh air compressor 17, the first air heat exchanger 9 and the second air heat exchanger 15 are connected through a refrigerant pipe 7 to provide heat source to the first air heat exchanger 9 and the second air heat exchanger 15.

[0040] Specifically, driven by the fresh air compressor 17, the cold and heat sources stored inside the dehumidification module's cold and heat source 201 can be transported through the refrigerant pipe 7 to the first air heat exchanger 9, providing energy for the temperature regulation of the fresh air. At the same time, the cold and heat sources absorbed by the second air heat exchanger 15 can also be transferred to the first air heat exchanger 9, thereby regulating the temperature of the fresh air before it enters the room, saving energy consumption of the cold and heat sources.

[0041] Further, see Figure 1 , Figure 3 As shown, the return air space 103 and the supply air space 101 are connected through a third air heat exchanger 16. A filter 14 is installed on the third air heat exchanger 16. The cold and heat source unit 2 also includes a refrigeration module cold and heat source 202, a return air compressor, and a controller 203. The refrigeration module cold and heat source 202, the return air compressor, and the third air heat exchanger 16 are connected through a refrigerant pipe 7 to provide a cold and heat source to the third air heat exchanger 16. The controller 203 is used to control the all-air system.

[0042] Specifically, driven by the return air compressor, the cold and heat source stored inside the refrigeration module cold and heat source 202 can be transported through the refrigerant pipe 7 to the third air heat exchanger 16 to provide energy for the temperature regulation of the return air and to regulate the return air temperature in the room; the controller 203 can control the whole air system, that is, control the entry of fresh air, indoor recirculation return air, indoor air exhaust, air temperature regulation, and fan start.

[0043] Preferred, see Figure 2 , Figure 3 As shown, the dehumidification assembly 13 includes a first dehumidification rotor 1301 and a second dehumidification rotor 1303. The first dehumidification rotor 1301 is located in the second channel 1202, and the second dehumidification rotor 1303 is located in the exhaust space 104. An isolation plate 1302 is provided between the first dehumidification rotor 1301 and the second dehumidification rotor 1303.

[0044] Specifically, the first dehumidifying rotor 1301 can humidify or dehumidify the fresh air by exhausting it, and the isolation plate 1302 can isolate the fresh air space 102 and the exhaust space to prevent bad air from re-entering the room. The second dehumidifying rotor 1303 can transfer the heat source of the air to be exhausted to the first dehumidifying rotor 1301 to save energy. At the same time, the above operations can be completed by the same dehumidifying component 13, so the equipment space can be further reduced, thereby further reducing the space occupation rate of the all-air system.

[0045] Preferred, see Figure 3 As shown, the return air space 103 is equipped with a photocatalyst 18 and a negative oxygen ion generator 19 to process the air sent out from the inner room.

[0046] Preferred, see Figure 1 , Figure 4 As shown, the air outlet 6 of the first fan 5 is connected to the room 26 through the air supply assembly. The air supply assembly includes a main air supply pipe 20, a static pressure box 21, and a branch pipe 22. The first fan 5 is connected to the static pressure box 21 through the main air supply pipe 20, and the static pressure box 21 is connected to the room 26 through the branch pipe 22, so as to deliver fresh air and return air to the designated rooms 26.

[0047] Furthermore, a sound-absorbing component is provided at the end of the branch pipe 22 near the room 26. The sound-absorbing component includes a sound-absorbing flexible hose 24 and an elbow air inlet 25. The sound-absorbing flexible hose 24 is sleeved on the branch pipe 22, and the elbow air inlet 25 is connected to the end of the branch pipe 22. The elbow air inlet 25 includes an air inlet pipe 2501, a bend pipe 2502, and an air outlet pipe 2503. The air inlet pipe 2501 and the air outlet pipe 2503 are connected through the bend pipe 2502. The diameter of the air outlet pipe 2503 gradually increases, and the diameter is largest at the end of the air outlet pipe 2503 away from the bend pipe 2502. A wind deflector 2504 is provided inside the air outlet pipe 2503 to reduce the airflow speed.

[0048] Specifically, the air entering the room travels along branch pipe 22, and after passing through the silencer component, it enters through air inlet pipe 2501. When it reaches bend pipe 2502, the direction of air travel is changed by bend pipe 2502, which reduces the flow velocity to a certain extent. It continues to travel along air outlet pipe 2503, where it collides with the wind deflector 2504 inside air outlet pipe 2503, further reducing the air velocity. Finally, it is sent into room 26 from the port of air outlet pipe 2503. The above design reduces the wind speed entering room 26, which not only makes the blown air more comfortable, but also reduces the noise generated by the blowing.

[0049] Preferably, there are two branch pipes 22 between the static pressure box 21 and a room 26, and each branch pipe 22 is equipped with an air volume regulator 23. The port of one branch pipe 22 is located on the top surface of the room 26, and the port of the other branch pipe 22 is located on the bottom surface of the room 26.

[0050] Specifically, the design can be further modified according to the requirements. A room 26 can be designed with only one branch pipe 22 for supplying both cooling and heating. Alternatively, a room 26 can be designed with two branch pipes 22, with one branch pipe 22 having its port located on the top surface of the room 26 for supplying cooling, and the other branch pipe 22 having its port located on the bottom surface of the room 26 for supplying heating. Each branch pipe 22 is equipped with an airflow regulator 23, which is used to adjust the airflow speed and the on / off state of the branch pipe 22, thereby achieving a better air supply effect.

[0051] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A full-air system for residential use, characterized in that, It includes: An air handling unit (1) includes an air supply space (101), a fresh air space (102), a return air space (103) and an exhaust space (104). An air supply space (101) is provided with a first fan (5) inside, which is used to supply air into the room; The fresh air space (102) is equipped with a fresh air inlet (3), which is used for outdoor air to enter the fresh air space (102). The fresh air space (102) is connected to the air supply space (101). The return air space (103) is provided with a return air vent (8), which is used for indoor air to enter the return air space (103). The return air space (103) is connected to the supply air space (101). The exhaust space (104) is connected to the return air space (103). An exhaust vent (4) is provided on the exhaust space (104) to exhaust indoor air to the outside.

2. The all-air system for residential use as described in claim 1, characterized in that: The fresh air space (102) is equipped with two first air heat exchangers (9), and a filter (14) is installed on the first air heat exchanger (9). The fresh air space (102) is divided into a first channel (1201), a second channel (1202) and a third channel (1203) by the first air heat exchanger (9). The fresh air inlet (3) is located in the first channel (1201), and the third channel (1203) is connected to the air supply space (101) through the second fan (10).

3. The all-air system for residential use as described in claim 2, characterized in that: The second channel (1202) is equipped with a dehumidification component (13), and the second channel (1202) is divided into a first space (11) and a second space (12) by the dehumidification component (13).

4. The all-air system for residential use as described in claim 3, characterized in that: The return air space (103) and the exhaust air space (104) are connected through a second air heat exchanger (15). A filter (14) is provided on the second air heat exchanger (15). The second air heat exchanger (15), the dehumidification component (13) and the partition wall form a third space.

5. The all-air system for residential use as described in claim 4, characterized in that: The all-air system also includes a heat source unit (2), which includes a dehumidification module heat source (201). A fresh air compressor (17) is installed inside the exhaust space (104). The dehumidification module heat source (201), the fresh air compressor (17), the first air heat exchanger (9) and the second air heat exchanger (15) are connected through a refrigerant pipe (7) to provide heat source to the first air heat exchanger (9) and the second air heat exchanger (15).

6. The all-air system for residential use as described in claim 5, characterized in that: The return air space (103) and the supply air space (101) are connected through a third air heat exchanger (16). A filter (14) is installed on the third air heat exchanger (16). The cold and heat source unit (2) also includes a refrigeration module cold and heat source (202), a return air compressor and a controller (203). The refrigeration module cold and heat source (202), the return air compressor and the third air heat exchanger (16) are connected through a refrigerant pipe (7) to provide a cold and heat source to the third air heat exchanger (16). The controller (203) is used to control the all-air system.

7. The all-air system for residential use as described in claim 4, characterized in that: The dehumidification assembly (13) includes a first dehumidification rotor (1301) and a second dehumidification rotor (1303). The first dehumidification rotor (1301) is located in the second channel (1202), and the second dehumidification rotor (1303) is located in the exhaust space (104). An isolation plate (1302) is provided between the first dehumidification rotor (1301) and the second dehumidification rotor (1303).

8. The all-air system for residential use as claimed in claim 1, characterized in that: The air outlet (6) of the first fan (5) is connected to the room (26) through the air supply assembly. The air supply assembly includes the main air supply pipe (20), the static pressure box (21) and the branch pipe (22). The first fan (5) is connected to the static pressure box (21) through the main air supply pipe (20), and the static pressure box (21) is connected to the room (26) through the branch pipe (22).

9. The all-air system for residential use as described in claim 8, characterized in that: The branch pipe (22) is equipped with a sound-absorbing component at the end near the room (26). The sound-absorbing component includes a sound-absorbing hose (24) and an elbow air inlet (25). The sound-absorbing hose (24) is sleeved on the branch pipe (22), and the elbow air inlet (25) is connected to the port of the branch pipe (22). The elbow air inlet (25) includes an air inlet pipe (2501), a bend pipe (2502), and an air outlet pipe (2503). The air inlet pipe (2501) and the air outlet pipe (2503) are connected through the bend pipe (2502). The diameter of the air outlet pipe (2503) gradually increases, and the diameter of the end of the air outlet pipe (2503) away from the bend pipe (2502) is the largest. A wind deflector (2504) is provided inside the air outlet pipe (2503). The wind deflector (2504) is used to slow down the airflow.

10. The all-air system for residential use as claimed in claim 8, characterized in that: The static pressure box (21) and a room (26) have two branch pipes (22), and each branch pipe (22) is equipped with an air volume regulator (23). The port of one branch pipe (22) is located on the top surface of the room (26), and the port of the other branch pipe (22) is located on the bottom surface of the room (26).

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