CN201762849U - Dismountable ventilation-type photovoltaic curtain wall - Google Patents

Abstract

A detachable ventilated photovoltaic curtain wall, including a photovoltaic curtain wall body and a photovoltaic matrix control module, the photovoltaic curtain wall body includes a frame support structure, an outer wall insulation layer and a plate, and the frame support structure includes a pile, a beam and a buried plate , connectors and adjusting bolts, which are characterized in that the panels include ventilation louver panels and photovoltaic panels, and the photovoltaic panels include sub-frames, laminated photovoltaic cell assemblies and photovoltaic wiring ports, and the photovoltaic wiring ports are connected to the photovoltaic controller. The signal transmission ports are connected, and a space for air flow is provided between the outer wall insulation layer and the plate to form a structural air duct, and the upper and lower parts of the structural air duct are respectively provided with air outlets and air inlets. The utility model solves the problems of self-heating and inconvenient disassembly, replacement and maintenance of photovoltaic panels existing in existing photovoltaic curtain walls when generating electricity.

Description

A detachable ventilated photovoltaic curtain wall

technical field

The utility model relates to a photovoltaic curtain wall, in particular to a new type of photovoltaic component in BIPV (Building Integrated Photovoltaic) - a detachable ventilated photovoltaic curtain wall, which is an improvement to the existing photovoltaic curtain wall structure and belongs to Solar photovoltaic power generation and building solar energy integration technology. the

Background technique

Photovoltaic curtain wall combines photovoltaic power generation technology and curtain wall technology. It uses special resin to paste solar cells on the glass, and inlays them between two pieces of glass to convert light energy into electrical energy through batteries. It is a high-tech product. Photovoltaic curtain walls not only have energy-saving functions such as flame retardancy, heat insulation and noise reduction, but also reduce light pollution compared with ordinary glass curtain walls, representing the latest development direction of building solar energy integration technology. the

Solar energy is an inexhaustible clean energy. In today's increasingly serious global pollution and energy crisis, the study of solar energy utilization is of great significance to alleviate the energy crisis, protect the ecological environment and ensure the sustainable development of the economy. the

Building integrated solar photovoltaic BIPV is a new concept of applying solar power generation: laying photovoltaic matrix on the outer surface of the building to maintain the structure to provide electricity. It can be said that among many renewable energy power generation technologies, photovoltaic power generation is the greenest, most environmentally friendly and most anticipated technology. the

Solar photovoltaic curtain wall is a kind of photovoltaic component in building integrated photovoltaic BIPV. From a theoretical design point of view, the currently widely used solar photovoltaic curtain wall has technical shortcomings as follows:

1. When photovoltaic cell panels are assembled into ordinary curtain wall structures, the overall energy-saving index (heat transfer coefficient K value) of the curtain wall cannot meet the national mandatory standards. the

2. Add a layer of glass synthetic hollow plate to the photovoltaic cell plate and assemble it into the ordinary curtain wall structure. Although the thermal insulation and energy saving index (heat transfer coefficient K value) meets the national mandatory standards, it ignores the photovoltaic plate in summer. A certain amount of self-heating is generated, and the temperature of the air in the hollow layer will rise, resulting in a decrease in the power generation efficiency of the battery pack, and an increase in the self-explosion rate of the hollow photovoltaic panel. At the same time, this structure of photovoltaic curtain wall is not conducive to the disassembly, replacement and maintenance of photovoltaic panels. the

To sum up, based on the technical status of the above-mentioned photovoltaic curtain wall, a new structure of photovoltaic curtain wall is designed, so that it can not only ensure the energy saving of the photovoltaic curtain wall, eliminate the self-heating of the photovoltaic panel when generating electricity, but also facilitate the photovoltaic panel. Disassembly is convenient for maintenance and replacement. the

Contents of the invention

The purpose of the utility model is to overcome the shortcomings in the above-mentioned existing production technology and provide a detachable ventilated photovoltaic curtain wall with a new design structure. This new type of photovoltaic curtain wall not only saves energy, but also eliminates the self-heating of the panels. At the same time, the photovoltaic panels are easy to disassemble and easy to repair and replace. the

The technical solution given by the utility model is: this detachable ventilated photovoltaic curtain wall includes a photovoltaic curtain wall body and a photovoltaic matrix control module. The frame support structure includes piles, beams, embedded panels, connectors and adjusting bolts, and is characterized in that the panels include ventilation louver panels and photovoltaic panels, and the photovoltaic panels include sub-frames of panels, laminated photovoltaic cell components and photovoltaic wiring ports , where the photovoltaic wiring port is connected to the signal transmission port of the photovoltaic controller, and a space for air flow is provided between the outer wall insulation layer and the plate to form a structural air duct, and the upper and lower parts of the structural air duct are respectively provided with air outlets and air inlet. the

In order to better realize the purpose of the utility model, the air outlet and the air inlet of the structural air duct are respectively provided with ventilation louver plates composed of louver blades, insect-proof nets and air circulation control devices, wherein the flow of wind is passed through the air circulation. Control device regulation. the

In order to better realize the purpose of the utility model, the laminated photovoltaic cell assembly is composed of ultra-clear glass, PVB film, photovoltaic cell assembly and white glass, wherein the photovoltaic cell assembly is located between the outer ultra-clear glass and the white glass. Between them, they are tightly connected into one by lamination through film. the

In order to better achieve the purpose of the utility model, the sub-frame of the panel is composed of an aluminum sub-frame and a sealing strip, the sub-frame of the panel is firmly bonded to the laminated photovoltaic cell assembly through structural glue, and the photovoltaic panel is connected to the structure through the sub-frame of the panel. The aluminum pallet on the beam is hooked and assembled, and the sealing rubber strip is assembled on the outside of the sub-frame of the plate to play the role of sealing and waterproofing. The sealing rubber strips are assembled by overlapping, which is convenient for the flexible disassembly of photovoltaic panels. the

The scope of application of the utility model: the non-lighting walls of the three facades in the east, west and east of the building. the

The structural parts not involved in the utility model are the same as those of the photovoltaic curtain wall in the prior art. the

The utility model is respectively designed with air outlet louvers and air inlet louvers at the upper and lower ends of the structural air duct. When photovoltaic cells generate electricity, the self-heating generated by them will increase the temperature of the air in the structural air duct. According to the principle of air convection, hot air Going up, cold air is supplied through the lower air inlet, and the hot air and heat are taken away through the upper air outlet, thereby maintaining the air temperature in the structural air duct and ensuring the power generation efficiency of photovoltaic cells. For buildings in spring, autumn and winter in high latitude areas, without affecting the power generation efficiency of photovoltaic cells, the air circulation control device should be appropriately lowered to protect the air in the structural air duct to a certain temperature, which is conducive to the insulation of the entire building. the

Compared with the prior art, the beneficial effects of the utility model are:

1. The design of photovoltaic curtain wall conforms to the specification of building curtain wall;

2. The design of the external insulation layer of the wall fully considers the design requirements of the building for thermal insulation and energy saving;

3. The structural air duct designed using the principle of air convection can take away the self-heat generated by photovoltaic cells when generating electricity through convective air to ensure power generation efficiency;

4. The structural design of the detachable photovoltaic panel can be installed or disassembled at will. The advantage of this design is that on the one hand, the overall photovoltaic panel can be manufactured in a factory without any processing on the construction site, which is conducive to ensuring The product quality of the core main parts, on the other hand, the detachable assembly structure of the plates, is very consistent with the characteristics of easy replacement and maintenance of the plates of the photovoltaic power generation system. the

Description of drawings

Figure 1 is a large sample diagram of the detachable ventilated photovoltaic curtain wall of the utility model;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is a vertical section node diagram (D01) of the detachable ventilated photovoltaic curtain wall of the utility model;

Figure 4 is a partial enlarged view of the photovoltaic panel in Figure 3;

Fig. 5 is a cross-sectional node diagram (D02) of the detachable ventilated photovoltaic curtain wall of the utility model;

Figure 6 is a cross-sectional node diagram (D03) of the detachable ventilated photovoltaic curtain wall of the utility model;

Fig. 7 is a schematic flow chart of the photovoltaic power generation system of the present invention. the

Marks in the figure: 1. Upright column, 2. Beam, 3. External insulation layer of the wall, 4. Buried board connector and adjusting bolt, 5. Photovoltaic panel, 6. Photovoltaic panel sub-frame, 7. Aluminum support plate, 8. Junction box, 9. Outgoing cables, 10. Wiring groove, 11. Sealing tape, 12. Ventilation louvers, 13. Anti-insect net, 14. Air circulation control device, 15. Aluminum grille, 16. Steel angle piece, 17. Ventilation louver plate, 18. Insulation material, 19. Steel mesh, 20. Clay layer, 21. Ultra-clear glass, 22. PVB film, 23. Photovoltaic battery pack, 24. White glass, 25. Aluminum sub-frame, 28. Civil structure, 29. Block, 30. Chemical anchor, 31. Expansion bolt, 32. Bolt, 33. Washer, 34. Stop washer, 35. Nut, 36. Adjusting bolt, 37. Air inlet, 38. Air outlet, 44. buried plate, 54. connector, 64. adjusting bolt. the

Detailed ways

Below in conjunction with embodiment and accompanying drawing, the concrete technical scheme of the present utility model is described further:

As shown in Fig. 1 to Fig. 6, the large sample diagram of the partial design of the solar photovoltaic curtain wall and its node diagram include the photovoltaic curtain wall body and the photovoltaic matrix control module. Plate, the frame supporting structure includes column 1, beam 2, buried plate connector and adjusting bolt 4, the above three parts constitute the main load-bearing structure of the photovoltaic curtain wall, and the design must meet the specifications of the curtain wall. The outer wall insulation layer 3 includes insulation material 18, steel mesh 19 and cement layer 20, and the material, density and thickness of the insulation material are selected according to architectural design requirements. A space is left between the outer wall insulation layer 3 and the panels to form a structural air duct, and the panels include ventilation louver panels 17 and photovoltaic panels 5, and the ventilation louver panels include ventilation louvers 12, insect-proof nets 13 and air circulation control Device 14, the photovoltaic panel 5 includes a laminated photovoltaic cell assembly, a panel sub-frame 6 and a photovoltaic terminal. The panel sub-frame 6 includes an aluminum sub-frame 25 and a sealant strip 11. The photovoltaic panel 5 and the supporting plate 7 are designed to be lifted up and down. and 36 can be adjusted up and down (vertical direction) and in and out (horizontal direction), thereby adjusting the installation accuracy of the photovoltaic panel. The photovoltaic matrix control module includes a photovoltaic inverter module, a photovoltaic control module and integrated wiring, and the integrated wiring includes Wiring groove 10 and lead out cable 9. the

Referring to Figures 3 to 4, the column 1, the beam 2 and the insulation material 18 of the utility model can respectively choose H-shaped steel, angle steel and rock wool board;

Referring to Fig. 3 to Fig. 5, the supporting plate 7, the aluminum sub-frame 25 and the ventilation louver plate 17 of the utility model can be selected from aluminum profiles, the surface is electrostatically sprayed, and the coating thickness is 40-120 μm, which meets the GB/T5237-2000 standard . the

As shown in FIG. 6 , the laminated photovoltaic cell assembly 26 of the present invention can be selected from 5mm toughened ultra-clear glass 21 , 1.14PVB film 22 , 3mm photovoltaic cell stack 23 and 5mm ordinary tempered white glass 24 . the

Referring to Figures 3 to 4, the sealing rubber strip 11 of the present invention can be made of EPDM or silicone rubber strips. The assembly relationship between the rubber strips adopts the lap joint method of top outside and bottom inside, which is conducive to waterproofing. the

Referring to Fig. 3 to Fig. 6, the buried plate 44 and the connecting piece 54 of the present invention can be made of steel material Q235, and the surface is hot-dip galvanized, which conforms to the GB/T13912-2002 standard. the

Referring to Figures 3 to 4, the assembly of the photovoltaic panel 5 of the present invention is required to be carried out in a factory, and the laminated photovoltaic cell assembly and the aluminum sub-frame 25 are bonded with structural adhesive; the junction box 8 and The photovoltaic cell modules are bonded with waterproof glue. After the photovoltaic plate 5 is prepared as a whole, it needs to be tested again for photovoltaics, and can only be packaged for delivery if it is qualified. the

Referring to Fig. 7, the utility model is composed of a photovoltaic curtain wall body, a photovoltaic matrix control module and users (or grid-connected output). The solar photovoltaic curtain wall body converts solar energy into DC power, which is converted into AC power through the inverter control module for AC load or grid-connected power supply; it can also be rectified and stabilized by the photovoltaic controller to DC power for DC load or battery energy storage. Its power generation system can be designed as an independent grid system, a grid-connected system, and an independent grid system with energy storage. Due to the storage loss (30%), service life and maintenance of the battery itself, it is often more advantageous to apply the grid-connected system to the photovoltaic curtain wall. The cost of the grid-connected system is lower than that of the independent grid system with energy storage, and the grid-connected The system produces more electricity than a stand-alone system. The independent grid system with energy storage has the function of emergency power generation. the

Those of ordinary skill in the art should understand that the above specific descriptions about the utility model are only used to illustrate the utility model and are not limited to the technical solutions described in the embodiments, and the utility model can still be modified or equivalently replaced, so as to To achieve the same technical effect, as long as the needs of use are met, all should be within the protection scope of the present utility model. the

Claims (4)

1. detachable ventilated type photovoltaic curtain wall, comprise photovoltaic curtain wall body and photovoltaic matrix control module, described photovoltaic curtain wall body comprises frame supporting structure, wall outer insulation layer and plate, described frame supporting structure comprises staking out, crossbeam and buried plate, connector and adjusting bolt, it is characterized in that described plate comprises ventilating blind plate and photovoltaic plate, described photovoltaic plate comprises the secondary frame of plate, doubling photovoltaic cell component and photovoltaic Wiring port, photovoltaic Wiring port wherein is connected with the signal transmission port of photovoltaic controller, be provided with between wall outer insulation layer and the plate and be convenient to the formation structure air channel, space that air flows, the upper and lower in structure air channel is respectively equipped with air outlet and air intake.

2. detachable ventilated type photovoltaic curtain wall according to claim 1 is characterized in that the air outlet in described structure air channel and air intake place are provided with the ventilating blind plate that is made of louvre blade, fly net and circulation of air control device respectively.

3. detachable ventilated type photovoltaic curtain wall according to claim 1, it is characterized in that described doubling photovoltaic cell component is by ultra-clear glasses, PVB film, photovoltaic cell group sheet and white glass constitute, wherein photovoltaic cell group sheet closely fuses through lamination by film respectively between outer ultra-clear glasses and white glass.

4. detachable ventilated type photovoltaic curtain wall according to claim 1, it is characterized in that the secondary frame of described plate is made of secondary frame of aluminium and sealing joint strip, the secondary frame of plate is by structure glue and doubling photovoltaic cell component strong bond, the photovoltaic plate articulates assembling by the aluminium supporting plate on secondary frame of plate and the structure crossbeam, described sealing joint strip is assemblied in the secondary frame of the plate outside, is the overlap joint assembling between the sealing joint strip.

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