Photovoltaic and fresh air system integrated externally-hung unit type wallboard

Abstract

The utility model relates to a photovoltaic and fresh air system integrated externally-hung unit type wallboard, and relates to the technical field of fresh air systems. The system comprises a frame, two opposite sides of the frame are respectively provided with an inner wallboard and a photovoltaic panel group, and the peripheral side of the photovoltaic panel group is provided with an outer wallboard surrounding edge; a cavity is formed between the inner wall plate and the photovoltaic panel group, a fresh air exchanger and a plurality of air pipes communicated with the fresh air exchanger are arranged in the cavity, an indoor ventilation opening is formed in the inner wall plate, an outdoor ventilation opening is formed between the photovoltaic panel group and the periphery of the outer wall plate, and the indoor ventilation opening and the outdoor ventilation opening are respectively communicated with the air pipes. The fresh air effect of the fresh air system can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of fresh air systems, and in particular to an external unitized wall panel integrating photovoltaic and fresh air systems. Background Art

[0002] Nearly zero-energy buildings are a new requirement for future buildings. Nearly zero-energy buildings have very high airtightness requirements, which requires a well-sealed enclosure structure. When the exterior windows are closed, the fresh air system is the main channel for exchanging indoor and outdoor air. The fresh air system is of great significance in maintaining a healthy and comfortable indoor environment and reducing indoor cooling and heating energy consumption.

[0003] At present, the building fresh air heat exchange is carried out by separately setting up fresh air heat exchangers and air ducts in the indoor roof area, and the air ducts are connected to perform fresh air heat exchange. However, there are the following problems in actual use: on the one hand, the fresh air equipment will affect the building floor height, and on the other hand, the long distance of the fresh air duct will increase the wind resistance and reduce the fresh air effect. Utility Model Content

[0004] In order to improve the fresh air effect of the fresh air system, the present application provides an external unit wall panel that integrates photovoltaic and fresh air systems.

[0005] The present application provides an external unitized wall panel with integrated photovoltaic and fresh air systems, which adopts the following technical solutions:

[0006] An external unit wall panel integrating photovoltaic and fresh air systems comprises a frame, wherein inner wall panels and photovoltaic panel groups are respectively arranged on opposite sides of the frame, and outer wall panel surrounds are arranged on the periphery of the photovoltaic panel group; a cavity is formed between the inner wall panel and the photovoltaic panel group, and a fresh air exchanger and a plurality of air ducts connected to the fresh air exchanger are arranged in the cavity; an indoor vent is formed on the inner wall panel, and an outdoor vent is opened between the photovoltaic panel group and the periphery of the outer wall panel, and the indoor vent and the outdoor vent are respectively connected to the air duct.

[0007] By adopting the above technical solution, by setting a fresh air exchanger and air duct in the cavity, the wall panel can have the function of fresh air ventilation without occupying the space of the indoor building roof; and compared with the air duct distributed on the indoor roof, the air duct in this application is relatively short, which improves the experience of the fresh air system. On this basis, the above structures can all be prefabricated in the factory, ensuring that the products can meet the quality and standards of industrialized products, and more in line with the high requirements of air tightness in near-zero energy consumption, reducing destructive operations such as on-site opening of holes.

[0008] Preferably, the fresh air exchanger is provided with a fresh air inlet, a fresh air outlet, an exhaust air inlet and an exhaust outlet, and the multiple air ducts are respectively arranged as fresh air inlet duct, fresh air outlet duct, exhaust air inlet duct and exhaust air outlet duct; one end of the fresh air inlet duct is connected to the fresh air inlet, one end of the exhaust air outlet duct is connected to the exhaust outlet, and the other ends of the fresh air inlet duct and the exhaust air outlet duct are both connected to the outdoor vent; one end of the exhaust air inlet duct is connected to the exhaust inlet, one end of the fresh air outlet duct is connected to the fresh air outlet, and the other ends of the exhaust air inlet duct and the fresh air outlet duct are both connected to the indoor vent.

[0009] By adopting the above technical solution, the indoor and outdoor fresh air exchange function is realized.

[0010] Preferably, it further comprises a three-way valve arranged on the fresh air inlet pipe, and a port of the three-way valve away from the fresh air inlet pipe is located in the cavity.

[0011] By adopting the above technical solution, in summer, the three-way valve is in a closed state and the outdoor vent is in an open state; in winter, the outdoor vent is adjusted to a closed state and the three-way valve is opened. At this time, the air in the cavity rises due to the heat generated by the photovoltaic panels, and the air in the cavity can enter the room through the three-way valve and the fresh air inlet pipe in turn, effectively reducing energy consumption losses; in the transition season, the three-way valve and the outdoor vent are both in an open state, so that the working mode of the fresh air exchange system can be adjusted according to different outdoor temperatures.

[0012] Preferably, the three-way valve is configured as a three-way solenoid valve.

[0013] By adopting the above technical solution, the opening and closing of the three-way valve can be more conveniently controlled by using the three-way solenoid valve.

[0014] Preferably, a hollow baffle is provided between the photovoltaic panel group and the peripheral edge of the exterior wall panel.

[0015] By adopting the above technical solution, a certain protective effect can be achieved by setting a hollow baffle to prevent foreign matter from entering the air duct through the outdoor vent and affecting the normal operation of the fresh air switch.

[0016] Preferably, the indoor vent is arranged at the top of the inner wall panel close to the roof.

[0017] By adopting the above technical solution, the vents are arranged at the top of the inner wall panel close to the roof, so that the space can be fully utilized and the occupation of the ground or wall space can be avoided, thereby keeping the indoor space clean and beautiful.

[0018] Preferably, the outdoor vents are all arranged below the photovoltaic panel group away from the roof.

[0019] By adopting the above technical solution, the vents are arranged below the photovoltaic panel group, which can avoid the vents being blocked by the photovoltaic panels and ensure that the vents are unobstructed. At the same time, it can also prevent the photovoltaic panels from being damaged due to accidental touch by people or objects.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. By setting up a fresh air exchanger and air duct in the cavity, and opening indoor and outdoor vents, fresh air exchange can be completed without affecting the overall building height, and the overall length of the air duct is relatively short, which improves the fresh air effect of the fresh air system;

[0022] 2. In addition, by setting a three-way valve, the demand for fresh air in different seasons can be met, further improving the experience of the fresh air system;

[0023] 3. The entire application can be prefabricated in the factory, ensuring that the product can meet the quality and standards of industrialized products, and better meet the high requirements of air tightness in near-zero energy consumption, reduce destructive operations such as on-site opening, and improve the quality and efficiency of the overall project. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the outdoor side of the embodiment of the present application;

[0025] Figure 2 It is a schematic diagram of the structure of the indoor side of the embodiment of the present application;

[0026] Figure 3 is a schematic diagram of the structure of the embodiment of the present application in the summer state;

[0027] Figure 4 This is a schematic diagram of the structure of the embodiment of the present application in a winter state;

[0028] Figure 5 It is a structural schematic diagram of an embodiment of the present application in a transition season state.

[0029] Figure numerals: 1. frame; 2. interior wall panel; 21. indoor vent; 22. control panel; 3. photovoltaic panel group; 31. photovoltaic panel; 4. exterior wall panel edge; 5. outdoor vent; 51. hollow baffle; 6. cavity; 7. fresh air exchanger; 71. fresh air inlet; 72. fresh air outlet; 73. exhaust air inlet; 74. exhaust air outlet; 8. air duct; 81. fresh air inlet duct; 82. fresh air outlet duct; 83. exhaust air inlet duct; 84. exhaust air outlet duct; 9. three-way valve. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 This application is described in further detail.

[0031] The embodiment of the present application discloses an external unitized wall panel that integrates photovoltaic and fresh air systems.

[0032] Reference Figure 1 and Figure 2 An external unit wall panel integrating photovoltaic and fresh air system comprises a frame 1, an inner wall panel 2 is arranged on the side of the frame 1 close to the indoor, and a photovoltaic panel group 3 composed of a plurality of photovoltaic panels 31 is arranged on the side of the frame 1 close to the outdoor. Figure 3 A cavity 6 is formed between the photovoltaic panel group 3 and the inner wall panel 2, and a fresh air exchanger 7 and an air duct 8 connected to the fresh air exchanger 7 are arranged in the cavity 6. An outer wall panel edge 4 fixedly connected to the frame 1 is arranged on the periphery of the photovoltaic panel group 3, and an outdoor vent 5 is arranged between the photovoltaic panel group 3 and the outer wall panel edge 4. A plurality of indoor vents 21 are opened on the top of the inner wall panel 2 near the roof. The indoor vents 21 and the outdoor vents 5 are respectively connected to the air duct 8, so that fresh air heat exchange can be achieved. The entire unit wall panel can be pre-assembled in the factory, ensuring that the product can meet the quality and standards of industrialized products, and more in line with the high requirements of air tightness in near-zero energy consumption, reducing destructive operations such as opening holes on site.

[0033] Reference Figure 1 and Figure 2 , the fresh air switch 7 is provided with four ports for connecting with the air duct 8, and the four ports are respectively a fresh air inlet 71, a fresh air outlet 72, an exhaust air inlet 73 and an exhaust air outlet 74. The fresh air inlet 71 and the exhaust air outlet 74 are located above the fresh air switch 7 near the roof, and the exhaust air inlet 73 and the fresh air outlet 72 are located below the fresh air switch 7. In this embodiment, four air ducts 8 are provided, and the four air ducts 8 are respectively provided as a fresh air inlet duct 81, a fresh air outlet duct 82, an exhaust air inlet duct 83 and an exhaust air outlet duct 84, and the air duct 8 is L-shaped as a whole. The fresh air inlet duct 81 and the exhaust air outlet duct 84 are symmetrically arranged in the cavity 6, one end of the fresh air inlet duct 81 is connected to the fresh air inlet 71, one end of the exhaust air outlet duct 84 is connected to the exhaust air outlet 74, and the other ends of the fresh air inlet duct 81 and the exhaust air outlet duct 84 are both connected to the outdoor vent 5. The exhaust air inlet pipe 83 and the fresh air outlet pipe 82 are symmetrically arranged in the cavity 6, one end of the exhaust air inlet pipe 83 is connected to the exhaust air inlet 73, one end of the fresh air outlet pipe 82 is connected to the fresh air outlet 72, and the other ends of the exhaust air inlet pipe 83 and the fresh air outlet pipe 82 are both connected to the indoor vent 21. By setting the fresh air switch 7, the indoor wind can be discharged to the outside, and the outdoor fresh air can be sucked into the room, so that the function of fresh air interaction can be realized. In addition, compared with the existing wind duct network laid on the roof, the overall length of the air duct 8 set in the cavity 6 is shorter, which can effectively reduce wind resistance and improve the fresh air effect.

[0034] Preferably, a hollow baffle 51 is provided between the photovoltaic panel group 3 and the outer wall panel edge 4, and the hollow baffle 51 can play a certain protective role to prevent foreign matter from entering the air duct 8 through the outdoor vent 5 and affecting the normal operation of the fresh air exchanger 7.

[0035] Reference Figure 2 and Figure 3 In order to meet the demand for indoor and outdoor fresh air exchange in different seasons, a three-way valve 9 is provided at one end of the fresh air inlet pipe 81 close to the outdoor exhaust port, and in this embodiment, the three-way valve 9 uses the same DC power supply as the photovoltaic panel group 3. The end of the three-way valve 9 away from the fresh air inlet pipe 81 is set as a bypass port, and the bypass port is located in the cavity 6. When the three-way valve 9 is in a closed state, the outdoor fresh air is allowed to enter the fresh air exchanger 7 through the fresh air ventilation pipe 8 normally; when the three-way valve 9 is in an open state, the gas in the cavity 6 can enter the fresh air exchanger 7 through the three-way valve 9.

[0036] In this embodiment, the three-way valve 9 is configured as a three-way solenoid valve, and a control panel 22 for controlling the three-way valve 9 and the fresh air exchanger 7 is provided on the inner wall panel 2. By controlling the three-way solenoid valve, different control modes can be realized, including summer mode, winter mode and transition mode.

[0037] refer to Figure 3 In summer mode, the outdoor air temperature is relatively high. At this time, the three-way valve 9 is in a closed state, and outdoor fresh air enters the room from the outdoor vent 5 through the fresh air switch 7.

[0038] refer to Figure 4 In winter mode, the temperature of the outdoor air is relatively low. At this time, the outdoor vent 5 is closed and the three-way valve 9 is adjusted to the open state. Since the air in the cavity 6 generates a large amount of heat due to the power generation of the photovoltaic panel group 3, the temperature of this part of the air rises and enters the room through the three-way valve 9 and the fresh air exchanger 7, thereby increasing the temperature of the fresh air entering the room and effectively reducing energy consumption losses; at the same time, a pressure difference is provided for the gas flow in the cavity 6, further optimizing the working temperature conditions of the photovoltaic panel 31, and improving the power generation efficiency of the photovoltaic panel 31.

[0039] Reference Figure 5 In the transition season mode, the three-way valve 9 is in an open state, and the outdoor vent 5 is in an open state, so that the temperature entering the room can be balanced to adapt to the transition season.

[0040] The implementation principle of the external unitized wall panel integrating photovoltaic and fresh air systems in an embodiment of the present application is as follows: by arranging a fresh air exchanger 7 and an air duct 8 in the cavity 6, and opening an indoor vent 21 and an outdoor vent 5, fresh air exchange can be completed without affecting the overall building height; and, by arranging a three-way valve 9, the demand for fresh air in different seasons can be met, further improving the experience of the fresh air system; and, the above structures are all prefabricated and assembled in the factory workshop, ensuring that the products can meet the quality and standards of industrialized products, and are more in line with the high requirements of air tightness in near-zero energy consumption, reducing destructive operations such as on-site hole opening.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An external unitized wall panel integrating photovoltaic and fresh air systems, characterized in that: The invention comprises a frame (1), wherein inner wall panels (2) and photovoltaic panel groups (3) are respectively arranged on opposite sides of the frame (1), and an outer wall panel surround (4) is arranged around the photovoltaic panel group (3); a cavity (6) is formed between the inner wall panels (2) and the photovoltaic panel group (3), a fresh air exchanger (7) and a plurality of air ducts (8) connected to the fresh air exchanger (7) are arranged in the cavity (6), an indoor vent (21) is provided on the inner wall panels (2), an outdoor vent (5) is provided between the photovoltaic panel group (3) and the outer wall panels, and the indoor vent (21) and the outdoor vent (5) are respectively connected to the air duct (8).

2. According to claim 1, the external unitized wall panel integrating photovoltaic and fresh air system is characterized in that: The fresh air exchanger (7) is provided with a fresh air inlet (71), a fresh air outlet (72), an exhaust air inlet (73) and an exhaust air outlet (74); the plurality of air ducts (8) are respectively provided as a fresh air inlet duct (81), a fresh air outlet duct (82), an exhaust air inlet duct (83) and an exhaust air outlet duct (84); one end of the fresh air inlet duct (81) is connected to the fresh air inlet (71), one end of the exhaust air outlet duct (84) is connected to the exhaust air outlet (74), and the other ends of the fresh air inlet duct (81) and the exhaust air outlet duct (84) are both connected to the outdoor vent (5); one end of the exhaust air inlet duct (83) is connected to the exhaust air inlet (73), one end of the fresh air outlet duct (82) is connected to the fresh air outlet (72), and the other ends of the exhaust air inlet duct (83) and the fresh air outlet duct (82) are both connected to the indoor vent (21).

3. The external unitized wall panel integrating photovoltaic and fresh air systems according to claim 2 is characterized in that: It also comprises a three-way valve (9) arranged on the fresh air inlet pipe (81), wherein a port of the three-way valve away from the fresh air inlet pipe (81) is located in the cavity (6).

4. The external unitized wall panel integrating photovoltaic and fresh air systems according to claim 3 is characterized by: The three-way valve (9) is configured as a three-way solenoid valve.

5. The external unitized wall panel integrating photovoltaic and fresh air systems according to claim 1, characterized in that: A hollow baffle (51) is provided between the photovoltaic panel group (3) and the outer wall panel perimeter (4).

6. The external unitized wall panel integrating photovoltaic and fresh air systems according to claim 1, characterized in that: The indoor ventilation opening (21) is arranged on the top of the inner wall panel (2) close to the roof.

7. The external unitized wall panel integrating photovoltaic and fresh air systems according to claim 1, characterized in that: The outdoor vents (5) are all arranged below the photovoltaic panel group (3) away from the roof.

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