Environment control system for ultra-low energy consumption residence

Abstract

The utility model relates to an environment control system for an ultra-low energy consumption house. The outdoor main machine comprises a vapor-liquid separator, a compressor, an outdoor air-cooled heat exchanger and a liquid storage device which are connected in sequence; each direct expansion type radiation wallboard comprises a built-in heat exchange assembly, each heat exchange assembly comprises a heat exchange pipe, a heat exchange fin, a gas collecting pipe and a liquid collecting pipe, the heat exchange fins wrap the outer walls of the heat exchange pipes, the gas collecting pipes and the liquid collecting pipes are connected with the two ends of the heat exchange pipes respectively, the liquid storage device is connected with the liquid collecting pipes, and the gas-liquid separator is connected with the gas collecting pipes; each direct expansion type air conditioner fresh air purification module comprises a fluorine side heat exchanger, an air feeder, an exhaust fan, an air-air exchanger, a fresh air filtering device, a turbid air filtering device and a return air filtering device; according to the utility model, the functional requirements of refrigeration, heating, dehumidification, humidification, constant oxygen, air purification and the like of the ultra-low energy consumption residence can be well met.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to an environmental control system for ultra-low energy consumption houses. Background Art

[0002] "Ultra-low energy consumption housing" is a truly ultra-low energy consumption building. Its efficient thermal insulation and sealing performance make its cooling and heating energy consumption very low. However, due to seasonal changes and the need for ventilation for indoor residents, there is heat and moisture exchange and energy loss. Therefore, ultra-low energy consumption housing requires a set of cooling, heating and fresh air exchange equipment.

[0003] In order to meet the demand for cooling, heating and fresh air in ultra-low energy residential buildings, currently, most people use integrated environmental control equipment (consisting of indoor and outdoor units). This equipment integrates the fluorine system (to solve the cooling and heating) and the fresh air system into one, and is installed in indoor areas such as kitchens, balconies and equipment rooms. The air duct design of central air conditioning is used to send the air processed by the equipment through the air duct to each room that needs to be conditioned. However, due to the performance and noise of the equipment, the air duct size is large and the on-site construction is difficult. In addition, the " The air duct design lowers the ceiling height, reducing both the room's space utilization and aesthetic appeal. This is especially true when the indoor unit is installed in the kitchen ceiling. Firstly, the equipment spans multiple ceiling joists, making it difficult to maintain. Secondly, the high static pressure required for long-distance air supply results in high operating noise from the indoor unit. This noise is particularly noticeable in highly insulated and sealed rooms like those in ultra-low-energy homes. Summary of the Invention

[0004] To this end, the utility model provides an environmental control system for ultra-low energy consumption houses, which can well meet the functional requirements of ultra-low energy consumption houses such as cooling, heating, dehumidification, humidification, constant oxygen, and air purification.

[0005] In order to solve the above technical problems, the present invention provides an environmental control system for ultra-low energy consumption housing, comprising:

[0006] The outdoor main unit includes a vapor-liquid separator, a compressor, an outdoor air-cooled heat exchanger and a liquid receiver connected in sequence;

[0007] A plurality of direct expansion radiant wall panels, each of the direct expansion radiant wall panels including a built-in heat exchange assembly, the heat exchange assembly including a heat exchange tube, a heat exchange fin, an air collecting pipe, and a liquid collecting pipe, the heat exchange fin being wrapped around the outer wall of the heat exchange tube, the air collecting pipe and the liquid collecting pipe being connected to both ends of the heat exchange tube, respectively, an indoor connecting pipe 1 being connected between the liquid reservoir and each of the liquid collecting pipes, and an indoor connecting pipe 2 being connected between the vapor-liquid separator and each of the air collecting pipes;

[0008] Several direct expansion air conditioning fresh air purification modules, each of which includes a fluorine-side heat exchanger, a blower, an exhaust fan, an air-to-air exchanger, a fresh air filter, a stale air filter, and a return air filter;

[0009] Wherein, the fluorine side heat exchanger and the air blower matched with the fluorine side heat exchanger, the first end and the second end of each of the fluorine side heat exchangers are respectively connected to the indoor connecting pipe 1 and the indoor connecting pipe 2;

[0010] The fresh air can enter the air-to-air exchanger through the fresh air filter device, and after heat and moisture exchange with the indoor filamentous air purified by the filamentous air filter device, be discharged outdoors through the exhaust fan;

[0011] The indoor return air can be filtered by the return air filter device, and then humidified by the humidification module under the action of the blower to be supplied indoors.

[0012] In one embodiment of the present invention, the direct expansion radiation wallboard includes a first gypsum board, a thermal insulation layer, a reflective layer, a heat conducting layer and a second gypsum board arranged in sequence, and the heat exchange component is arranged in the heat conducting layer.

[0013] In one embodiment of the present invention, the thermal insulation layer includes a polystyrene thermal insulation board.

[0014] In one embodiment of the present invention, the reflective layer includes an aluminum foil reflective film, and the aluminum foil reflective film is connected to the thermal insulation layer by bonding.

[0015] In one embodiment of the present invention, the heat-conducting layer includes heat-conducting paste or heat-conducting silica gel.

[0016] In one embodiment of the present invention, the heat exchange tube is a copper tube and is distributed in a serpentine shape. A plurality of the heat exchange tubes are arranged longitudinally along the surface of the reflective layer. The gas collecting tube and the liquid collecting tube are arranged on both sides of each heat exchange tube in the transverse direction. The liquid collecting tube includes a first end distributed along its length direction and a second end located in the axial direction. The gas collecting tube includes a first end distributed along its length direction and a second end located in the axial direction. The two ports of each of the heat exchange tubes are respectively connected to the first end of the gas collecting tube and the first end of the liquid collecting tube, and the second end of the liquid collecting tube and the second end of the gas collecting tube are respectively connected to the indoor connecting pipe one and the indoor connecting pipe two.

[0017] In one embodiment of the present invention, the outdoor host further includes a four-way valve, and the four ports are respectively connected to the compressor, the outdoor air-cooled heat exchanger, the vapor-liquid separator and the second indoor connecting pipeline.

[0018] In one embodiment of the present invention, a throttling element 1 is connected between the outdoor air-cooled heat exchanger and the liquid reservoir, and a one-way valve 1 is connected in parallel to the throttling element 1.

[0019] In one embodiment of the present invention, the second end of the liquid collecting pipe is connected to a second throttling element, and the second throttling element is also connected to a second one-way valve.

[0020] In one embodiment of the present invention, the indoor connecting pipe 1 is connected to the fluorine-side heat exchanger via a throttling element 3, and the throttling element 3 is also connected to a one-way valve 3.

[0021] The above technical solution of the utility model has the following advantages compared with the prior art:

[0022] The environmental control system for ultra-low-energy homes described in this utility model can effectively meet the functional requirements of ultra-low-energy homes, including cooling, heating, dehumidification, humidification, oxygen regulation, and air purification. Compared with heat pump-based fresh air environmental control systems currently on the market, this system not only offers advantages such as simplified on-site construction, effectively increased room headroom, and more precise room air environment control, but also improves system operating energy efficiency by over 30%. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0024] Figure 1 The utility model is a schematic diagram of the overall structure of an environmental control system for ultra-low energy consumption housing.

[0025] Figure 2 It is a structural diagram of the outdoor host of the utility model.

[0026] Figure 3 It is a structural schematic diagram of this practical direct expansion radiation wall panel.

[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the practical direct expansion radiation wall panel.

[0028] Figure 5 This is a structural diagram of the practical direct expansion air conditioning fresh air purification module.

[0029] Description of the accompanying drawings:

[0030] 1. Outdoor main unit; 2. Main unit connection pipe 1; 3. Main unit connection pipe 2; 4. Direct expansion radiant wall panel; 5. Direct expansion air conditioning fresh air purification module; 6. Control unit; 7. Indoor connection pipe 1; 8. Indoor connection pipe 2; 9. Detection module;

[0031] 10. Compressor; 11. Four-way valve; 12. Outdoor air-cooled heat exchanger; 13. Throttling element 1; 14. One-way valve 1; 15. Liquid receiver; 16. Vapor-liquid separator;

[0032] 17. Throttling element 2; 18. Check valve 2; 19. Liquid collecting pipe; 20. Gas collecting pipe; 21. Heat exchange tube; 22. Heat exchange fin;

[0033] 23. First gypsum board; 24. Insulation layer; 25. Reflective layer; 26. Heat-conducting layer; 27. Second gypsum board;

[0034] 28. Fluorine-side heat exchanger; 29. ​​Throttling element three; 30. Check valve three; 31. Supply fan; 32. Exhaust fan;

[0035] 33. Air-to-air exchanger; 34. Fresh air filter; 35. Stale air filter; 36. Return air filter; 37. Humidification module. DETAILED DESCRIPTION

[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0037] In the present invention, if there is a description of directions (up, down, left, right, front and back), it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0038] In this utility model, "several" means one or more, "multiple" means more than two, "greater than," "less than," "exceeds," etc. are understood to exclude the number itself; "above," "below," "within," etc. are understood to include the number itself. In the description of this utility model, the use of "first" or "second" is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0039] In this utility model, unless otherwise expressly defined, terms such as "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to direct connection or indirect connection through an intermediate medium; fixed connection or detachable connection or integral molding; mechanical connection or electrical connection or mutual communication; and internal connection between two components or interaction between two components. Those skilled in the art can reasonably determine the specific meanings of these terms in this utility model based on the specific content of the technical solution.

[0040] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 As shown, the present invention is an environmental control system for ultra-low energy consumption housing, comprising:

[0041] The outdoor main unit 1 includes a vapor-liquid separator 16, a compressor 10, an outdoor air-cooled heat exchanger 12 and a liquid receiver 15 connected in sequence;

[0042] Several direct expansion radiant wall panels 4, each of which includes a built-in heat exchange assembly, comprising a heat exchange tube 21, a heat exchange fin 22, an air collecting pipe 20, and a liquid collecting pipe 19. The heat exchange fin 22 is wrapped around the outer wall of the heat exchange tube 21. The air collecting pipe 20 and the liquid collecting pipe 19 are respectively connected to the two ends of the heat exchange tube 21. An indoor connecting pipe 1 7 is connected between the liquid reservoir 15 (connected to the main unit connecting pipe 2) and each of the liquid collecting pipes 19. An indoor connecting pipe 2 8 is connected between the vapor-liquid separator 16 (connected to the main unit connecting pipe 2 3) and each of the air collecting pipes 20.

[0043] Several direct expansion air conditioning fresh air purification modules 5, each of which includes a fluorine-side heat exchanger 28, a blower 31, an exhaust fan 32, an air-air exchanger 33, a fresh air filter 34, a stale air filter 35, and a return air filter 36;

[0044] The fluorine side heat exchanger 28 and the blower 31 matched with the fluorine side heat exchanger 28, the first end and the second end of each fluorine side heat exchanger 28 are connected to the indoor connecting pipe 1 7 and the indoor connecting pipe 2 8 respectively;

[0045] The fresh air can enter the air-to-air exchanger 33 through the fresh air filter 34 and exchange heat and moisture with the indoor filtrated air purified by the filtrated air filter 35 before being discharged outdoors through the exhaust fan 32.

[0046] The indoor return air can be filtered by the return air filter device 36 and then humidified by the humidification module 37 under the action of the blower 31 to be supplied indoors.

[0047] In one embodiment, referring to Figure 4 As shown, the direct expansion radiation wallboard 4 includes a first gypsum board 23, a thermal insulation layer 24, a reflective layer 25, a heat-conducting layer 26 and a second gypsum board 27 arranged in sequence, and the heat exchange component is arranged in the heat-conducting layer 26.

[0048] Exemplarily, the insulation layer 24 includes a polystyrene insulation board; the reflective layer 25 includes an aluminum foil reflective film, which is connected to the insulation layer 24 by gluing; and the heat-conducting layer 26 includes heat-conducting paste or heat-conducting silicone.

[0049] Reference Figure 3 As shown, the heat exchange tube 21 is a copper tube and is distributed in a serpentine shape. A plurality of the heat exchange tubes 21 are arranged longitudinally along the surface of the reflective layer 25. The gas collecting pipe 20 and the liquid collecting pipe 19 are arranged on both sides of each heat exchange tube 21 in the transverse direction. The liquid collecting pipe 19 includes a first end distributed along its length direction and a second end located in the axial direction. The gas collecting pipe 20 includes a first end distributed along its length direction and a second end located in the axial direction. The two ends of each heat exchange tube 21 are respectively connected to the first end of the gas collecting pipe 20 and the first end of the liquid collecting pipe 19. The second end of the liquid collecting pipe 19 and the second end of the gas collecting pipe 20 are respectively connected to the indoor connecting pipe 1 7 and the indoor connecting pipe 2 8.

[0050] It is understood that the main function of the gas and liquid manifolds 20 and 19 is to divide the heat exchange tubes 21 within the radiant panel into several circuits, thereby facilitating uniform refrigerant flow. This avoids the problem of high flow resistance caused by a single circuit, as well as the problem of increasing or decreasing temperatures along the pipe, which can lead to uneven temperature distribution on the radiant panel surface.

[0051] In one embodiment, the outdoor host 1 further includes a four-way valve 11 , and the four ports are respectively connected to the compressor 10 , the outdoor air-cooled heat exchanger 12 , the vapor-liquid separator 16 and the indoor connecting pipe 2 8 .

[0052] In one embodiment, a throttling element 13 is connected between the outdoor air-cooled heat exchanger 12 and the liquid reservoir 15 , and a one-way valve 14 is connected in parallel to the throttling element 13 .

[0053] In one embodiment, the second end of the liquid collecting pipe 19 is connected to a second throttling element 17 , and the second throttling element 17 is also connected to a second one-way valve 18 .

[0054] In one embodiment, the indoor connecting pipe 1 7 and the fluorine-side heat exchanger 28 are connected to a throttling element 3 29 , and the throttling element 3 29 is also connected to a one-way valve 3 30 .

[0055] Specifically, a control system, including a control unit 6 and a detection module 9, is provided for controlling the entire system. The outdoor unit 1, several direct expansion radiant wall panels 4, and several direct expansion air conditioning fresh air purification modules 5 are connected via copper pipes to form a complete refrigeration system circuit. The control unit 6 is used to set the appropriate parameters according to the functional requirements of each room and then the system is turned on.

[0056] Specifically, the compressor 10 used in the outdoor host 1 is a variable frequency compressor 10; the throttling element 1 13, the throttling element 2 17, and the throttling element 3 29 all use electronic expansion valves; the maximum filtration level of the fresh air filter device 34 is not lower than H11, and the minimum level is not lower than G4; the maximum filtration level of the return air filter device 36 is not lower than F9, and the minimum level is not lower than G4.

[0057] The working principle of this utility model is as follows:

[0058] Refrigeration:

[0059] The four-way valve 11 does not operate, and the compressor 10 starts. The high-temperature and high-pressure gas discharged from the compressor 10 condenses and releases heat under the action of the outdoor air-cooled heat exchanger 12, and becomes a low-temperature and high-pressure liquid. The gas then flows to the liquid reservoir 15 through the one-way valve 14, and enters the throttling element 2 17 of the direct expansion radiation wall panel 4 through the indoor connecting pipe 17 for throttling and pressure reduction. The direct expansion radiation wall panel 4 absorbs heat and evaporates (to achieve room cooling). The gas returns to the outdoor main unit through the connecting pipe 2 8, flows through the four-way valve 11, enters the vapor-liquid separator 16, and then returns to the compressor. This cycle is repeated to achieve room cooling.

[0060] The number of radiation wall panels 4 is activated according to the cooling requirements of each room. If there is a demand for fresh air during the cooling period, the direct expansion air conditioning fresh air purification module 5 is activated according to the instructions. The working process is as follows:

[0061] Fluorine system: The blower 31 is started, and the low-temperature and high-pressure liquid enters the throttling element 3 29 through the indoor connecting pipe 1 7. After throttling and reducing the pressure, it absorbs heat and evaporates in the fluorine side heat exchanger 28 under the enhanced action of the blower 31 (indoor air cooling). After that, it returns to the outdoor main unit through the connecting pipe 2 8. This cycle is repeated to achieve room cooling.

[0062] Air duct system: The electric airtight valves on the fresh air duct and exhaust duct, which connect to the outdoor environment, are open. After the supply fan 31 is started, the exhaust fan 32 is started. Outdoor air passes through the electric airtight valve, flows through the fresh air duct, and enters the fresh air inlet of the direct expansion air conditioning fresh air purification module 5. After being purified by the fresh air filter 34, it enters the air-to-air exchanger 33, where it exchanges heat and moisture with the indoor stale air (which has previously been purified by the stale air filter 35). Afterward, under the enhanced action of the exhaust fan 32, it flows through the exhaust duct and is discharged outdoors through the exhaust airtight valve, achieving both fresh air intake and energy savings. Indoor air is filtered by the return air filter 36 at the return air outlet, mixed with the incoming fresh air, and then delivered to the room under the enhanced action of the supply fan 31. This cycle achieves fresh air, purification, and cooling. When the fresh air demand is met, the exhaust fan 32 is turned off, the fresh and exhaust air electric sealing valves are closed, and the direct expansion air conditioning fresh air purification module 5 continues to work until the set temperature requirement is reached and then enters the standby state.

[0063] Heating:

[0064] The four-way valve 11 is reversed, and the compressor 10 starts. The high-temperature and high-pressure gas discharged from the compressor 10 passes through the four-way valve (11) and then enters the indoor direct expansion radiation wall panel 4 through the connecting pipe 2 8 to release heat and condense (to achieve room heating). After that, it passes through the one-way valve 2 18 and returns to the outside through the connecting pipe 1 7 and enters the liquid storage tank 15. After throttling and reducing the pressure through the throttling element 13, it absorbs heat and evaporates in the outdoor air-cooled heat exchanger 12. After that, it passes through the four-way valve 11 and enters the vapor-liquid separator 16 and returns to the compressor 10. This cycle realizes room heating.

[0065] The number of radiant wall panels 4 is activated according to the heating requirements of each room. If there is a demand for fresh air during the heating period, the direct expansion air conditioning fresh air purification module 5 is activated according to the instructions. The operation is as follows:

[0066] Fluorine system: The blower 31 is started, and the high-temperature and high-pressure gas enters the fluorine-side heat exchanger 28 through the indoor connecting pipe 2 8 and condenses and releases heat (indoor air temperature rises) under the enhanced action of the blower 29. After that, it passes through the one-way valve 3 30 and the connecting pipe 1 7 to return to the outdoor host. This cycle realizes room heating.

[0067] Air duct system: The electric airtight valves on the fresh air duct and exhaust duct, which connect to the outdoor environment, are open. After supply fan 29 is started, exhaust fan 32 is activated. Outdoor air passes through the electric airtight valve, flows through the fresh air duct, and enters the fresh air inlet of the direct expansion air conditioning fresh air purification module 5. After being purified by fresh air filter 34, it enters air-to-air exchanger 33, where it exchanges heat and moisture with the indoor stale air (which has previously been purified by stale air filter 35). Afterward, under the enhanced action of exhaust fan 32, it flows through the exhaust duct and is discharged outdoors through the exhaust airtight valve, achieving both fresh air intake and energy savings. Indoor air is filtered by return air filter 36 at the return air outlet, mixed with the incoming fresh air, and then delivered to the room under the enhanced action of supply fan 29. This cycle of fresh air, purification, and heating continues. When the fresh air demand is met, the exhaust fan 32 is turned off, the fresh and exhaust air electric sealing valves are closed, and the direct expansion air conditioning fresh air purification module 5 continues to work until the set temperature requirement is reached and then enters the standby state.

[0068] Dehumidification:

[0069] The throttling element 2 17 is closed to the minimum, the direct expansion air conditioning fresh air purification module 5 works, and the blower 31 starts and runs at a low speed.

[0070] The four-way valve 11 does not operate, and the compressor 10 starts. The high-temperature and high-pressure gas discharged by the compressor 10 condenses and releases heat under the action of the outdoor air-cooled heat exchanger 12, and then becomes a low-temperature and high-pressure liquid. The gas then flows to the liquid storage tank 15 through the one-way valve 14, and then enters the throttling element 3 29 through the indoor connecting pipe 17 for throttling and pressure reduction. After that, the gas absorbs heat and evaporates in the fluorine-side heat exchanger 28 under the action of the blower 29 (the indoor air is quickly cooled and dehumidified). After that, the gas returns to the outdoor main unit through the connecting pipe 2 8. This cycle is repeated to achieve room cooling.

[0071] When there is a demand for fresh air, the fresh air electric sealed valve and the exhaust electric sealed valve on the fresh air duct and the exhaust duct connected to the outdoor environment are opened. After the supply fan 31 is started, the exhaust fan 32 is started. The outdoor air passes through the fresh air electric sealed valve and then enters the fresh air inlet of the direct expansion air conditioning fresh air purification module 5 through the fresh air duct. After being purified by the fresh air filter device 34, it enters the air-air exchanger 33 and exchanges heat and moisture with the stale air from the room (first purified by the stale air filter device 35). After that, it flows through the exhaust duct under the enhanced action of the exhaust fan 32 and is discharged to the outside through the exhaust sealed valve, so as to achieve both fresh air intake and energy saving and consumption reduction.

[0072] Humidification:

[0073] The outdoor air conditioner is shut down, the direct expansion air conditioning fresh air purification module 5 is activated, and the blower 31 is started and runs at high speed. The air from the room is filtered by the return air filter device 36 at the return air outlet, and then humidified by the enhanced action of the blower 29 through the humidification module 37 before being sent into the room, completing the humidification cycle.

[0074] When there is a demand for fresh air, the fresh air electric sealed valve and the exhaust electric sealed valve on the fresh air duct and the exhaust duct connected to the outdoor environment are opened. After the supply fan 29 is started, the exhaust fan 32 is started. The outdoor air passes through the fresh air electric sealed valve and then enters the fresh air inlet of the direct expansion air conditioning fresh air purification module 5 through the fresh air duct. After being purified by the fresh air filter device 34, it enters the air-air exchanger 33 and exchanges heat and moisture with the stale air from the room (first purified by the stale air filter device 35). After that, it flows through the exhaust duct under the enhanced action of the exhaust fan 32 and is discharged to the outside through the exhaust sealed valve, so as to achieve both fresh air intake and energy saving and consumption reduction.

[0075] Purification:

[0076] The outdoor host does not start. The direct expansion air conditioning fresh air purification module 5 works and the blower 31 starts.

[0077] The air from the room is filtered by the return air filter device 36 at the return air outlet and then sent into the room under the enhanced action of the blower 29, and the purification is achieved in this cycle.

[0078] When there is a demand for fresh air, the fresh air electric sealed valve and the exhaust electric sealed valve on the fresh air duct and the exhaust duct connected to the outdoor environment are opened, and the exhaust fan 32 is started. The outdoor air passes through the fresh air electric sealed valve and then enters the fresh air inlet of the direct expansion air conditioning fresh air purification module 5 through the fresh air duct. After being purified by the fresh air filter device 34, it enters the air-air exchanger 33 and exchanges heat and moisture with the stale air from the room (first purified by the stale air filter device 35). After that, it flows through the exhaust duct under the enhanced action of the exhaust fan 32 and is discharged to the outside through the exhaust sealed valve, so as to achieve both fresh air intake and energy saving and consumption reduction.

[0079] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to examples, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An environmental control system for ultra-low energy consumption housing, characterized in that: include: An outdoor main unit (1) includes a vapor-liquid separator (16), a compressor (10), an outdoor air-cooled heat exchanger (12), and a liquid storage tank (15) connected in sequence; A plurality of direct expansion radiation wall panels (4), each of the direct expansion radiation wall panels (4) includes a built-in heat exchange component, the heat exchange component includes a heat exchange tube (21), a heat exchange fin (22), an air collecting pipe (20) and a liquid collecting pipe (19), the heat exchange fin (22) is wrapped around the outer wall of the heat exchange tube (21), the air collecting pipe (20) and the liquid collecting pipe (19) are respectively connected to the two ends of the heat exchange tube (21), an indoor connecting pipe (7) is connected between the liquid reservoir (15) and each of the liquid collecting pipes (19), and an indoor connecting pipe (8) is connected between the vapor-liquid separator (16) and each of the air collecting pipes (20); A plurality of direct expansion air conditioning fresh air purification modules (5), each of the direct expansion air conditioning fresh air purification modules (5) comprising a fluorine side heat exchanger (28), a blower (31), an exhaust fan (32), an air-to-air exchanger (33), a fresh air filter (34), a stale air filter (35), and a return air filter (36); The fluorine-side heat exchanger (28) and the blower (31) matched with the fluorine-side heat exchanger (28) are connected to the indoor connecting pipe 1 (7) and the indoor connecting pipe 2 (8) at their first and second ends, respectively. The fresh air can enter the air-to-air exchanger (33) through the fresh air filter device (34), and after heat and moisture exchange with the indoor filthy air purified by the filthy air filter device (35), be discharged outdoors through the exhaust fan (32); The indoor return air can be filtered by the return air filter device (36), and then humidified by the humidification module (37) under the action of the air supply fan (31), and then supplied indoors.

2. The environmental control system for ultra-low energy consumption housing according to claim 1, characterized in that: The direct expansion radiation wallboard (4) comprises a first gypsum board (23), a thermal insulation layer (24), a reflective layer (25), a heat-conducting layer (26), and a second gypsum board (27) which are arranged in sequence, and the heat exchange component is arranged in the heat-conducting layer (26).

3. The environmental control system for ultra-low energy consumption housing according to claim 2, characterized in that: The thermal insulation layer (24) comprises a polystyrene thermal insulation board.

4. The environmental control system for ultra-low energy consumption housing according to claim 2, characterized in that: The reflective layer (25) comprises an aluminum foil reflective film, and the aluminum foil reflective film is connected to the thermal insulation layer (24) by gluing.

5. The environmental control system for ultra-low energy consumption housing according to claim 2, characterized in that: The heat-conducting layer (26) comprises heat-conducting paste or heat-conducting silica gel.

6. The environmental control system for ultra-low energy consumption housing according to claim 2, characterized in that: The heat exchange tube (21) is a copper tube and is distributed in a serpentine shape. A plurality of the heat exchange tubes (21) are arranged longitudinally along the surface of the reflective layer (25). The gas collecting tube (20) and the liquid collecting tube (19) are arranged on both sides of each heat exchange tube (21). The liquid collecting tube (19) includes a first end distributed along its length direction and a second end located in the axial direction. The gas collecting tube (20) includes a first end distributed along its length direction and a second end located in the axial direction. The two ends of each heat exchange tube (21) are respectively connected to the first end of the gas collecting tube (20) and the first end of the liquid collecting tube (19). The second end of the liquid collecting tube (19) and the second end of the gas collecting tube (20) are respectively connected to the indoor connecting pipe 1 (7) and the indoor connecting pipe 2 (8).

7. The environmental control system for ultra-low energy consumption housing according to claim 1, characterized in that: The outdoor main unit (1) further comprises a four-way valve (11), wherein the four ports are respectively connected to the compressor (10), the outdoor air-cooled heat exchanger (12), the vapor-liquid separator (16) and the second indoor connecting pipeline (8).

8. The environmental control system for ultra-low energy consumption housing according to claim 1, characterized in that: A throttling element (13) is connected between the outdoor air-cooled heat exchanger (12) and the liquid storage device (15), and a one-way valve (14) is connected in parallel to the throttling element (13).

9. The environmental control system for ultra-low energy consumption housing according to claim 6, characterized in that: The second end of the liquid collecting pipe (19) is connected to a second throttling element (17), and the second throttling element (17) is also connected to a second one-way valve (18).

10. The environmental control system for ultra-low energy consumption housing according to claim 1, characterized in that: The indoor connecting pipe 1 (7) is connected to the fluorine side heat exchanger (28) by a throttling element 3 (29), and the throttling element 3 (29) is also connected to a one-way valve 3 (30).

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