Heat collection and heat removal integrated energy-saving enclosure structure and heat collection and heat removal adjusting method thereof

Abstract

The invention discloses a heat collection and heat removal integrated energy-saving enclosure structure and a heat collection and heat removal adjusting method thereof. In the structure, a roof subsystem comprises a roof radiation layer, a roof structure layer, a cavity located between the roof radiation layer and the roof structure layer, and a communicating device used for achieving air circulation and isolation between the indoor space and the cavity; the roof radiation layer comprises a plurality of inclined and side-by-side double-side shutter radiation units, each double-side shutter radiation unit comprises a condensation pipe, a central pipe rotationally sleeving the condensation pipe and shutter plates arranged on the two sides of the central pipe, one side of each shutter plate is provided with a sky radiation cooling material, and the other side of each shutter plate is provided with a solar heat collection material; the wall subsystem comprises a wall and evaporation pipes arranged in the wall, the upper ends of the evaporation pipes are in butt joint with the lower ends of the corresponding condensation pipes, and the evaporation pipes are used for storing heat-conducting media capable of absorbing heat and evaporating. Natural energy can be fully utilized in summer and winter to meet the cold and hot requirements, and the complexity and cost of the system are reduced.

Description

Technical Field

[0001] The present invention belongs to the field of building energy conservation, and in particular relates to a heat collection and heat dissipation integrated energy-saving enclosure structure and a heat collection and heat dissipation regulating method thereof. Background Art

[0002] As people's living standards improve, more and more energy is used for building heating and cooling to ensure indoor thermal comfort. In recent years, building energy consumption has continued to rise, reaching about 40% of the world's total energy consumption. Building greenhouse gas emissions account for nearly one-third of global greenhouse gas emissions, triggering a series of ecological problems such as global warming. Countries around the world call for reducing carbon emissions and improving the energy efficiency of building systems. Faced with the increasingly severe energy utilization situation, developing new and efficient building energy-saving technologies and increasing the application of natural energy in building systems have become the future trend of building energy conservation development.

[0003] In the building energy system, the proportion of heating and air conditioning energy consumption exceeds 40% or even higher, and there is a huge potential for energy saving and carbon reduction. In addition, in the field of construction, solar radiation energy is the most abundant, clean and economical natural energy, and is an ideal heat source for building systems; sky radiation cooling technology is a passive cooling technology that uses cosmic long-wave radiation, and has also been widely used in building cooling in recent years. In addition, in the building system, the performance of the envelope structure directly affects the size of the building load, and thus affects the operating energy consumption of the building heating and air-conditioning system. Therefore, applying these two natural energies, solar radiation heat and sky radiation cooling, to the building envelope structure can effectively reduce the direct consumption of high-quality energy such as electricity by the building heating and air-conditioning system, and has been widely favored by scholars. For example, in the cold winter, solar radiation is used to heat the roof of the building to reduce the heat dissipation of the roof, or solar collectors are used to prepare hot water and then transport it to the envelope structure (roof, wall) to achieve the insulation of the envelope structure; in the hot summer, sky radiation cooling technology is used to cool the roof and reduce indoor heat gain, or radiation coolers are used to prepare cold water to cool the envelope structure, thereby reducing the indoor load.

[0004] Although solar radiation heat and sky radiation cooling are applied to building envelope structures, they can only meet the single demand of cooling or heating in buildings, that is, they are only applicable in a single cooling season or heating season, and cannot guarantee good energy-saving effects in both cooling and heating seasons. For example, solar roofs basically do not work in summer, and radiation cooling roofs will cause greater heat loss in winter.

[0005] As an important part of the building envelope, the building roof is the main area for obtaining natural energy such as solar radiation heat and sky radiation cooling in the building system. However, due to the limited building area, the combination of independent solar energy utilization system and sky radiation cooling system will inevitably lead to waste of resources and increase the complexity and construction cost of the building system. On the other hand, China has a vast territory, and there are many regions and cities with demand for air conditioning in the summer during the winter heating season. The building volume is very large. The current single solar energy utilization or sky radiation cooling technology can no longer meet the application needs of energy-saving and low-carbon buildings in such areas.

[0006] Therefore, carbon neutrality is an important goal that needs to be achieved urgently. Reducing the energy consumption of building operations is the task of every construction professional. It is particularly important to design an energy-saving envelope structure that meets the cooling and heating needs of summer and winter, is based on the use of natural energy, and does not increase the complexity of the building system and construction costs within a limited building area. Summary of the invention

[0007] The purpose of the present invention is to provide an integrated energy-saving enclosure structure for heat collection and heat dissipation, as well as a heat collection and heat dissipation regulation method based on the above structure. The present application can fully utilize natural energy to meet the cooling and heating needs in both summer and winter, reduce the energy consumption of building heating and air conditioning, achieve year-round reduction of building energy consumption, fully utilize the limited area of ​​the roof, and reduce the complexity and cost of the system.

[0008] The technical solution adopted by the present invention is: The invention discloses an energy-saving enclosure structure integrating heat collection and heat dissipation, comprising a roof subsystem and a wall subsystem; the roof subsystem comprises a roof radiation layer facing the outside, a roof structure layer facing the interior, a cavity between the roof radiation layer and the roof structure layer, and a connecting device for realizing air circulation and isolation between the interior and the cavity; the roof radiation layer comprises a plurality of inclined and side-by-side double-sided louver radiation units, the double-sided louver radiation units comprise a fixed condenser tube, a central tube rotatably sleeved on the condenser tube, and louver plates arranged on both sides of the central tube, one side of the louver plates being a heat dissipation surface provided with sky radiation cooling material, and the other side being a heat collection surface provided with solar energy heat collection material, flipping the louver plates can switch the working surface of the louver plates, and heat can be transferred in sequence between the louver plates, the central tube and the condenser tube; the wall subsystem comprises a wall facing the outside, an evaporation tube arranged in the wall, the evaporation tube is distributed along the wall and the upper end is butted with the lower end of the corresponding condenser tube, and the evaporation tube is used to store a heat-conducting medium that can absorb heat and evaporate.

[0009] Preferably, the connecting device includes an air duct arranged on the roof structure layer to connect the cavity and the indoor room, an air valve arranged on the air duct for controlling the opening and closing of the air duct, and a fan arranged on the air duct for realizing air circulation between the cavity and the indoor room.

[0010] Preferably, a bearing is provided between the central tube and the condenser tube, a lubricating oil with excellent heat conductivity is filled between the two, and the lubricating oil is prevented from leaking by an end seal.

[0011] Preferably, the sky radiation cooling material has high long-wave emissivity and solar radiation reflectivity, and adopts a material combining an organic radiation cooling film with metallic silver.

[0012] Preferably, the solar heat collection material has a high solar radiation absorptivity and is made of black chromium oxide material.

[0013] Preferably, the heat transfer medium stored in the evaporation tube is Freon R11 or pentane.

[0014] Preferably, the louver plates and the central tube are made of aluminum alloy, the condenser tube and the evaporator tube are made of copper, and the corresponding condenser tube and evaporator tube are located in different areas of the same bent copper tube.

[0015] Preferably, the roof radiation layer covers the entire building roof, and the width of a single double-sided louver radiation unit is 200-400 mm.

[0016] Preferably, the inclination angle of the double-sided louver radiation unit is 3°~5°.

[0017] A heat collection and heat dissipation regulation method based on the above-mentioned heat collection and heat dissipation integrated energy-saving enclosure structure: When cooling is needed in seasons with high ambient temperatures, the heat dissipation surface of the louver in the roof radiation layer is facing upward: during the day, the heat dissipation surface reflects the solar radiation heat and discharges it to the outside through long-wave radiation cooling in the sky, reducing the amount of heat gained by the building roof due to solar radiation. In addition, the connecting device isolates the room from the cavity, forming an insulating air layer in the cavity to insulate the room. At the same time, as the wall temperature rises, the evaporation pipe in the wall absorbs heat from the wall, and the internal heat transfer medium absorbs heat from the evaporation pipe and evaporates into the condenser pipe. The heat of the heat transfer medium is transferred to the louver through the condenser pipe and the center pipe, and then discharged to the sky through the heat dissipation surface, and the heat transfer medium loses heat. After the heat is condensed, it flows back to the evaporation pipe to realize the circulating heat dissipation of the wall; at night, the connecting device circulates the air between the room and the cavity, and the indoor heat is transferred to the cavity through the air circulation, and the cavity heat is transferred to the louver and discharged to the outside through the heat dissipation surface, so as to realize the active heat dissipation of the room and reduce the indoor cold load. At the same time, since there is still heat storage in the wall that has not been fully discharged, the evaporation pipe in the wall absorbs heat from the wall, and the internal heat transfer medium absorbs heat from the evaporation pipe and evaporates into the condensation pipe. The heat of the heat transfer medium is transferred to the louver through the condensation pipe and the central pipe, and then discharged to the sky through the heat dissipation surface. After the heat transfer medium loses heat, it condenses and flows back to the evaporation pipe to realize the circulating heat dissipation of the wall; When heating is needed in seasons with low ambient temperatures, the heat collecting surface of the louvers in the roof radiation layer is facing upward: during the day, the heat collecting surface absorbs solar radiation heat to heat the louvers, and the louvers heat the cavity. In addition, the connecting device circulates air between the room and the cavity, and the heat from the cavity is transferred to the room through air circulation, thereby increasing the indoor temperature and reducing the indoor heat load. At night, the connecting device isolates the room from the cavity, forming an insulating air layer in the cavity to keep the room warm and reduce heat loss in the building.

[0018] The beneficial effects of the present invention are: The present application can make full use of natural energy to meet the demand for cooling and heating in both summer and winter, reduces the energy consumption of building heating and air conditioning, realizes the reduction of building energy consumption throughout the year, can make full use of the limited area of ​​the roof, and reduces the complexity and cost of the system: the roof radiation layer adopts multiple modular and independent units, which can reduce the space required for rotation, make full use of the roof area and reduce the space demand on the roof; the heat dissipation surface and the heat collection surface are respectively arranged on the two sides of the louver plate, and the working surface can be switched by flipping the louver plate. Therefore, when cooling is needed in summer, the heat dissipation surface can be turned up to reduce indoor heat gain and reduce the cooling load of the building. When heating is needed in winter, the heat collection surface can be turned up to increase the indoor temperature to reduce the heat load of the building, which can meet the cooling and heating needs of summer and winter respectively; the connecting device can realize the connection between the indoor and the cavity The cavity provides space for the rotation of the louver on the one hand, and can form a heat-insulating air layer or a thermal-insulating air layer in an isolated state on the other hand, thereby reducing the heat gain or heat loss caused by heat transfer on the indoor roof of the building. In the state of air circulation, the indoor air can directly contact the louver for heat exchange, thereby realizing different functions such as active indoor heat collection and heat dissipation, and improving the utilization efficiency of natural energy. As efficient heat transfer components, the evaporator, condenser, and heat-conducting medium can transfer a large amount of heat under low temperature difference conditions. In summer, the wall heat can be transferred to the louver and discharged to the sky through the heat dissipation surface, thereby realizing the circulating heat dissipation of the wall, thus solving the problem that traditional radiant cooling can only reduce the roof cooling load, and can also perform passive cooling on the exterior wall of the building, thereby further reducing the indoor cooling load of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the integrated energy-saving enclosure structure for heat collection and heat dissipation in an embodiment of the present invention. For the sake of easy observation, the evaporation pipes in the wall are visible.

[0020] Figure 2 Schematic diagram of the structure of the double-sided louver radiation unit in an embodiment of the present invention.

[0021] Figure 3 It is a cross-sectional schematic diagram of the integrated energy-saving enclosure structure for heat collection and heat dissipation in an embodiment of the present invention. In the figure, the roof structure layer and the wall are viewed from a cross-sectional perspective, and the two sides of the double-sided louver radiation unit are viewed from a cross-sectional perspective.

[0022] In the figure: 1-double-sided louver radiation unit; 11-heat exhaust surface; 12-louver plate; 13-collecting surface; 14-central tube; 15-condenser tube; 16-end seal; 17-bearing; 2-evaporator tube; 3-wall; 4-roof structure layer; 5-cavity; 6-connecting device; 61-air duct; 62-air valve; 63-fan; A-heat transfer medium; B-lubricating oil. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] Embodiment 1 This embodiment discloses an integrated energy-saving enclosure structure for collecting and discharging heat, such as Figures 1 to 3 As shown, it includes a roof subsystem and a wall 3 subsystem. The roof subsystem includes a roof radiation layer, a roof structure layer 4, a cavity 5 and a connecting device 6. The wall 3 subsystem includes a wall 3 and an evaporation pipe 2. Among them, the roof radiation layer faces the outside, the roof structure layer 4 faces the interior, and the cavity 5 is between the roof radiation layer and the roof structure layer 4. Figure 3 The roof radiation layer includes a plurality of inclined and parallel double-sided louver radiation units 1, the double-sided louver radiation unit 1 includes a fixed condenser tube 15, a central tube 14 rotatably sleeved on the condenser tube 15, and louver plates 12 arranged on both sides of the central tube 14. One side of the louver plate 12 is provided with sky radiation cooling material as a heat dissipation surface 11, and the other side is provided with solar heat collection material as a heat collection surface 13. The working surface of the louver plate 12 can be switched by flipping the louver plate 12, and the louver plate 12, the central tube 14 and the condenser tube 15 can conduct heat in sequence. Figures 1 to 3 ; The connecting device 6 is used to realize air circulation and isolation between the indoor cavity 5, see Figure 3 The wall 3 faces the outside, and the evaporation tube 2 is arranged in the wall 3. The evaporation tube 2 is distributed along the wall 3 and the upper end is connected to the lower end of the corresponding condensation tube 15. The evaporation tube 2 is used to store the heat-conducting medium A that can absorb heat and evaporate. Figure 1 and Figure 3 .

[0025] Regarding the communication device 6, in this embodiment, preferably: Figure 3 As shown, the connecting device 6 includes an air duct 61 arranged on the roof structure layer 4 to connect the cavity 5 and the indoor room, an air valve 62 arranged on the air duct 61 for controlling the opening and closing of the air duct 61, and a fan 63 arranged on the air duct 61 for realizing air circulation between the cavity 5 and the indoor room. The number and arrangement of the air duct 61, the air valve 62, and the fan 63 are set according to actual needs.

[0026] Regarding the installation between the central tube 14 and the condenser tube 15, in this embodiment, preferably: Figure 3As shown, a bearing 17 is provided between the central tube 14 and the condenser tube 15, and a lubricating oil B with excellent thermal conductivity is filled between the two and the lubricating oil B is prevented from leaking by an end seal 16. On the one hand, the normal rotation of the central tube 14 and the louver plate 12 can be ensured, and on the other hand, the heat transfer effect can be enhanced.

[0027] In this embodiment, the sky radiation cooling material has a high long-wave (8~13um) emissivity (~0.9) and a solar radiation reflectivity (0.9~0.95), and preferably uses a material combining an organic radiation cooling film and metallic silver. The solar thermal collection material has a high solar radiation absorptivity (~0.9), and preferably uses a black chromium oxide material; the sky radiation cooling material and the solar thermal collection material are both attached to the louver 12.

[0028] In this embodiment, the heat-conducting medium A stored in the evaporating tube 2 is preferably Freon R11 or pentane, wherein the boiling point of Freon R11 is 23.7 degrees Celsius, which is suitable for extremely cold or hot-summer and cold-winter areas, and the boiling point of pentane is 36 degrees Celsius and has high latent heat, which is suitable for extremely hot areas.

[0029] In this embodiment, the louver 12 and the center tube 14 are preferably made of aluminum alloy material, which has a higher heat transfer coefficient and is light in weight to reduce the dead weight. The condenser 15 and the evaporator 2 are preferably made of copper material. The corresponding condenser 15 and evaporator 2 are located in different areas of the same bent copper tube and have a higher heat transfer coefficient.

[0030] In this embodiment, the roof radiation layer covers the entire building roof, and the preferred width of a single double-sided louver radiation unit 1 is 200-400 mm. The design advantage of this width range is that it can fully utilize the space of the cavity 5 and facilitate rotation adjustment.

[0031] In this embodiment, the double-sided louver radiation unit 1 preferably has an inclination angle of 3° to 5°.

[0032] Embodiment 2 This embodiment provides a heat collection and heat dissipation regulation method based on the heat collection and heat dissipation integrated energy-saving enclosure structure in the above-mentioned embodiment 1.

[0033] When cooling is needed in seasons with high ambient temperatures, the heat dissipation surface 11 of the louver 12 in the roof radiation layer is directed upwards: During the day, the heat dissipation surface 11 reflects the solar radiation heat and discharges the heat to the outside through the long-wave radiation cooling of the sky, thereby reducing the heat gain of the building roof due to solar radiation. In addition, the connecting device 6 isolates the room from the cavity 5, so that the cavity 5 forms an insulating air layer to insulate the room. At the same time, due to the increase in the temperature of the wall 3, the evaporation tube 2 in the wall 3 absorbs heat from the wall 3, and the internal heat-conducting medium A absorbs heat from the evaporation tube 2 and evaporates into the condensation tube 15. The heat of the heat-conducting medium A is transferred to the louver 12 through the condensation tube 15 and the central tube 14, and then discharged to the sky through the heat dissipation surface 11. The heat-conducting medium A loses heat and condenses and flows back to the evaporation tube 2 to realize the cyclic heat dissipation of the wall 3. At night, the connecting device 6 allows air to circulate between the room and the cavity 5. The indoor heat is transferred to the cavity 5 through the air circulation, and the heat in the cavity 5 is transferred to the louver 12 and discharged to the outside through the heat dissipation surface 11, thereby realizing active indoor heat dissipation and reducing the indoor cooling load. At the same time, since there is still heat stored in the wall 3 that has not been fully discharged, the evaporation tube 2 in the wall 3 absorbs heat from the wall 3, and the internal heat transfer medium A absorbs heat from the evaporation tube 2 and evaporates into the condensation tube 15. The heat of the heat transfer medium A is transferred to the louver 12 through the condensation tube 15 and the central tube 14, and then discharged to the sky through the heat dissipation surface 11. After losing heat, the heat transfer medium A condenses and flows back to the evaporation tube 2 to realize the cyclic heat dissipation of the wall 3.

[0034] When heating is needed in seasons with low ambient temperatures, the heat collecting surface 13 of the louver plate 12 in the roof radiation layer is directed upwards: During the day, the heat collecting surface 13 absorbs solar radiation heat to heat the louver 12, and the louver 12 heats the cavity 5. In addition, the connecting device 6 allows air to circulate between the room and the cavity 5, and the heat of the cavity 5 is transferred to the room through the air circulation, thereby increasing the indoor temperature and reducing the indoor heat load. At night, the connecting device 6 isolates the room from the cavity 5, so that the cavity 5 forms a heat-insulating air layer to keep the room warm and reduce heat loss in the building.

[0035] This application can fully utilize natural energy to meet heating and cooling needs in both summer and winter, reducing the energy consumption of building heating and air conditioning, achieving year-round reduction in building energy consumption, making full use of the limited area of ​​the roof, and reducing the complexity and cost of the system: The roof radiant layer uses multiple modular, independent units, which can reduce the space required for rotation, fully utilize the roof area, and reduce the space requirement on the roof; The heat dissipation surface 11 and the heat collection surface 13 are respectively arranged on the two sides of the louver plate 12. The working surface can be switched by turning over the louver plate 12. Therefore, when cooling is needed in summer, the heat dissipation surface 11 can be turned upward to reduce indoor heat gain and reduce the cooling load of the building. When heating is needed in winter, the heat collection surface 13 can be turned upward to increase the indoor temperature and reduce the heat load of the building, thereby meeting the cooling and heating needs of summer and winter respectively. The connecting device 6 can realize air circulation and isolation between the room and the cavity 5. The cavity 5 provides a space for the louver 12 to rotate, and can form a heat-insulating air layer or a heat-retaining air layer in an isolated state, thereby reducing the heat gain or heat loss caused by heat transfer on the indoor roof of the building. In the air circulation state, the indoor air can directly contact the louver 12 for heat exchange, thereby realizing different functions such as active heat collection and heat dissipation in the room, and improving the utilization efficiency of natural energy. The evaporator tube 2, the condenser tube 15, and the heat transfer medium A serve as efficient heat transfer components and can transfer a large amount of heat under low temperature difference conditions. In summer, the heat of the wall 3 can be transferred to the louver 12 and discharged to the sky through the heat dissipation surface 11, thereby realizing the circulating heat dissipation of the wall 3, solving the problem that traditional radiation cooling can only reduce the cooling load on the roof. It can also passively cool the exterior wall of the building to further reduce the indoor cooling load of the building.

[0036] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. An integrated energy-saving enclosure structure for heat collection and heat dissipation, characterized in that: It includes a roof subsystem and a wall subsystem; the roof subsystem includes a roof radiation layer facing the outside, a roof structure layer facing the interior, a cavity between the roof radiation layer and the roof structure layer, and a connecting device for realizing air circulation and isolation between the interior and the cavity; the roof radiation layer includes a plurality of inclined and side-by-side double-sided louver radiation units, the double-sided louver radiation units include a fixed condenser tube, a central tube rotatably mounted on the condenser tube, and louver plates arranged on both sides of the central tube, one side of the louver plates is used as a heat dissipation surface and is provided with sky radiation cooling material, and the other side is used as a heat collection surface and is provided with solar energy heat collection material, flipping the louver plates can switch the working surface of the louver plates, and heat can be conducted in sequence between the louver plates, the central tube and the condenser tube; the wall subsystem includes a wall facing the outside, an evaporation tube arranged in the wall, the evaporation tube is distributed along the wall and the upper end is butted with the lower end of the corresponding condenser tube, and the evaporation tube is used to store a heat-conducting medium that can absorb heat and evaporate.

2. The integrated energy-saving heat collection and heat dissipation enclosure structure according to claim 1, characterized in that: The connecting device includes an air duct arranged on the roof structure layer to connect the cavity and the indoor room, an air valve arranged on the air duct to control the opening and closing of the air duct, and a fan arranged on the air duct to realize air circulation between the cavity and the indoor room.

3. The integrated energy-saving heat collection and heat dissipation enclosure structure according to claim 1, characterized in that: A bearing is provided between the central tube and the condenser tube, and lubricating oil with excellent heat conductivity is filled between the two and the lubricating oil is prevented from leaking by end seals.

4. The integrated energy-saving heat collection and heat dissipation enclosure structure according to claim 1, characterized in that: Sky radiation cooling materials have high long-wave emissivity and solar radiation reflectivity, and are made of a material that combines an organic radiation cooling film with metallic silver.

5. The integrated energy-saving heat collection and heat dissipation enclosure structure according to claim 1, characterized in that: The solar thermal collector material has a high solar radiation absorption rate and is made of black chromium oxide material.

6. The integrated energy-saving heat collection and heat dissipation enclosure structure according to claim 1, characterized in that: The heat transfer medium stored in the evaporating tube is selected to be Freon R11 or pentane.

7. The integrated energy-saving heat collection and heat dissipation enclosure structure according to claim 1, characterized in that: The louver plate and the central tube are made of aluminum alloy, the condenser tube and the evaporator tube are made of copper, and the corresponding condenser tube and the evaporator tube are located in different areas of the same bent copper tube.

8. The integrated energy-saving heat collection and heat dissipation enclosure structure according to claim 1, characterized in that: The roof radiation layer covers the entire building roof, and the width of a single double-sided louver radiation unit is 200~400mm.

9. The integrated energy-saving heat collection and heat dissipation enclosure structure according to claim 1, characterized in that: The inclination angle of the double-sided louver radiation unit is 3°~5°.

10. A heat collection and heat dissipation regulation method, characterized in that: Based on the integrated energy-saving enclosure structure for heat collection and heat dissipation as described in any one of claims 1 to 9; When cooling is needed in seasons with high ambient temperatures, the heat dissipation surface of the louver in the roof radiation layer is facing upward: during the day, the heat dissipation surface reflects the solar radiation heat and discharges it to the outside through long-wave radiation cooling in the sky, reducing the amount of heat gained by the building roof due to solar radiation. In addition, the connecting device isolates the room from the cavity, forming an insulating air layer in the cavity to insulate the room. At the same time, as the wall temperature rises, the evaporation pipe in the wall absorbs heat from the wall, and the internal heat transfer medium absorbs heat from the evaporation pipe and evaporates into the condenser pipe. The heat of the heat transfer medium is transferred to the louver through the condenser pipe and the center pipe, and then discharged to the sky through the heat dissipation surface, and the heat transfer medium loses heat. After the heat is condensed, it flows back to the evaporation pipe to realize the circulating heat dissipation of the wall; at night, the connecting device circulates the air between the room and the cavity, and the indoor heat is transferred to the cavity through the air circulation, and the cavity heat is transferred to the louver and discharged to the outside through the heat dissipation surface, so as to realize the active heat dissipation of the room and reduce the indoor cold load. At the same time, since there is still heat storage in the wall that has not been fully discharged, the evaporation pipe in the wall absorbs heat from the wall, and the internal heat transfer medium absorbs heat from the evaporation pipe and evaporates into the condensation pipe. The heat of the heat transfer medium is transferred to the louver through the condensation pipe and the central pipe, and then discharged to the sky through the heat dissipation surface. After the heat transfer medium loses heat, it condenses and flows back to the evaporation pipe to realize the circulating heat dissipation of the wall; When heating is needed in seasons with low ambient temperatures, the heat collecting surface of the louvers in the roof radiation layer is facing upward: during the day, the heat collecting surface absorbs solar radiation heat to heat the louvers, and the louvers heat the cavity. In addition, the connecting device circulates air between the room and the cavity, and the heat from the cavity is transferred to the room through air circulation, thereby increasing the indoor temperature and reducing the indoor heat load. At night, the connecting device isolates the room from the cavity, forming an insulating air layer in the cavity to keep the room warm and reduce heat loss in the building.

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