Component type photovoltaic glass curtain wall system with cooling structure

Abstract

The utility model provides a component type photovoltaic glass curtain wall system with a cooling structure. The system comprises a curtain wall stand column, a curtain wall cross beam and a photovoltaic unit, wherein the photovoltaic unit comprises photovoltaic glass; the system further comprises a buckle plate fixed on the curtain wall stand column and the curtain wall cross beam; and the cooling structure is fixed on the buckle plate, and the cooling structure and the photovoltaic unit are arranged side by side so as to cool the photovoltaic glass. Different from natural ventilation or mechanical air exhaust, the component type photovoltaic glass curtain wall plate heating device well solves the problem that a component type photovoltaic glass curtain wall plate is overheated on the premise that the vertical face effect is guaranteed, and is convenient to install and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a modular photovoltaic glass curtain wall system with a cooling structure. Background Art

[0002] With the development of the photovoltaic industry, more and more construction projects choose to add photovoltaic components to the facade curtain wall. Photovoltaic power generation can not only solve its own power consumption problem, but even achieve "surplus power storage", effectively achieving low-carbon environmental protection. The modular curtain wall has the highest degree of industrialization among all curtain wall categories. The professional contracting unit of building curtain walls can reasonably arrange the customized production of panels according to the on-site construction progress, and complete diversified building curtain walls at a relatively low cost.

[0003] In the current application scenarios of solar photovoltaic buildings, i.e., building integrated photovoltaics (BIPV), the combination of photovoltaic components and the facade curtain wall has relatively little impact on the building effect. Considering the indoor effect, the photovoltaic panels are more inclined to be used in the interlayer position. However, there is a problem of heat generation in the closed interlayer of the modular photovoltaic glass curtain wall. Once the temperature is too high, not only will the photovoltaic efficiency decrease, but there may also be safety problems. From the perspective of the power source, the cooling measures for photovoltaic panels can be divided into active cooling and passive cooling. Active cooling uses pumps or fans to circulate the heat transfer fluid through the photovoltaic panels, and the cooling efficiency is relatively high, but the cost itself is relatively high; passive cooling relies on three heat transfer mechanisms: natural convection, heat conduction, and radiation, and its maintenance cost is relatively low. However, how to design a passive cooling structure for easy installation and maintenance is a technical problem that needs to be solved urgently at present. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a modular photovoltaic glass curtain wall system with a cooling structure, which is different from natural ventilation or mechanical exhaust. On the premise of ensuring the facade effect, it well solves the problem of overheating of the modular photovoltaic glass curtain wall panels and is convenient for installation and maintenance.

[0005] To achieve the above object, an embodiment of the utility model provides a modular photovoltaic glass curtain wall system with a cooling structure, including a curtain wall column, a curtain wall cross beam, and a photovoltaic unit. The photovoltaic unit includes photovoltaic glass; the system further includes: a buckle plate fixed on the curtain wall column and the curtain wall cross beam; a cooling structure fixed on the buckle plate and arranged side by side with the photovoltaic unit to cool the photovoltaic glass.

[0006] In some embodiments, the cooling structure includes: a temperature control box fixed on the buckle plate and arranged side by side with the photovoltaic unit; a phase change material filled in the temperature control box for cooling the photovoltaic glass.

[0007] In the above technical solution, by adding a buckle fixed on the curtain wall column and the curtain wall cross beam, and a cooling structure fixed on the buckle and arranged side by side with the photovoltaic unit, the photovoltaic glass can be cooled, and the overheating problem of the prefabricated photovoltaic glass curtain wall with a cooling structure is well solved. Different from natural ventilation or mechanical exhaust, on the premise of ensuring the facade effect, the overheating problem of the prefabricated photovoltaic glass curtain wall panel is well solved, and it is convenient for installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings according to these drawings without creative efforts.

[0009] Figure 1 is the architecture diagram of a prefabricated photovoltaic glass curtain wall system with a cooling structure provided by an embodiment of the present invention;

[0010] Figure 2 is the sectional view along the Figure 1 A-A direction in

[0011] Figure 3 is the Figure 2 magnified schematic view of part A1 in

[0012] Figure 4 is the sectional view along the Figure 1 B-B direction in

[0013] Figure 5 is the Figure 4 magnified schematic view of part B1 in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0015] Please refer to Figures 1 to 5 together, where [[ID=IO]]Figure 1 is the architecture diagram of a prefabricated photovoltaic glass curtain wall system with a cooling structure provided by an embodiment of the present invention; Figure 2 is the sectional view along the Figure 1 A-A direction in

[0016] Figure 3 is Figure 2 an enlarged schematic view of part A1 in Figure 4 is Figure 1 a sectional view taken along line B - B in Figure 5 is Figure 4 an enlarged schematic view of part B1 in

[0017] As Figures 1 to 5 shown, the modular photovoltaic glass curtain wall system with a cooling structure described in this embodiment includes a curtain wall column 11, a curtain wall cross - beam 12, and a photovoltaic unit 19. The photovoltaic unit 19 includes photovoltaic glass 191. The system further includes a buckle plate 13 and a cooling structure 14. The buckle plate 13 is fixed on the curtain wall column 11 and the curtain wall cross - beam 12; the cooling structure 14 is fixed on the buckle plate 13, and the cooling structure 14 is arranged side by side with the photovoltaic unit 19 to cool the photovoltaic glass 191. Specifically, the cooling structure 14 cools the photovoltaic glass 191 by a passive cooling method.

[0018] In this embodiment, the buckle plate 13 is an aluminum alloy buckle plate and is fixed on the curtain wall column 11 and the curtain wall cross - beam 12 by screws 131, as Figure 4 shown.

[0019] In this embodiment, the cooling structure 14 is fixed on the buckle plate 13 by a plug - in method.

[0020] In this embodiment, the cooling structure 14 includes: a temperature - regulating box 141 and a phase - change material 142; the temperature - regulating box 141 is fixed on the buckle plate 13 and is arranged side by side with the photovoltaic unit 19; the phase - change material 142 is filled in the temperature - regulating box 141 and is used to cool the photovoltaic glass 191. Specifically, the phase - change material 142 cools the photovoltaic glass 191 by a passive cooling method. Specifically, the phase - change material 142 does not fill the temperature - regulating box 141 completely, so as to allow the temperature - regulating box 141 to accommodate the volume change of the phase - change material 142 after heat absorption and avoid deformation of the temperature - regulating box 141.

[0021] Continuing with the above - mentioned embodiment, the temperature - regulating box 141 is an integrally - formed aluminum box and has an opening (not shown), and the phase - change material 142 can be injected into the temperature - regulating box 141 through the opening. Specifically, the integrally - formed aluminum box can be drilled at the installation construction site to inject the phase - change material.

[0022] Continuing with the above - mentioned embodiment, the opening is located at the top of the temperature - regulating box 141, and there is a gap 140 between the injection height of the phase - change material 142 and the top of the temperature - regulating box 141. Specifically, the height H1 of the gap 140 is greater than or equal to 3 cm, as Figure 5 shown.

[0023] In some embodiments, the phase change material 142 is liquid paraffin. That is, a waxy (Paraffin Wax) phase change material is used, such as liquid Paraffin C19.

[0024] In this embodiment, the curtain wall cross beam 12 is arranged at the interlayer position, and the extending direction of the curtain wall cross beam 12 is substantially perpendicular to the extending direction of the curtain wall column 11.

[0025] In this embodiment, the photovoltaic unit 19 is arranged at the interlayer position and a fixing unit is adopted to ensure the connection reliability of the photovoltaic glass 191; the joints between adjacent photovoltaic units 19 are sealed with a sealant 101, and the joints between the photovoltaic unit 19 and the adjacent conventional curtain wall unit 10 are sealed with the sealant 101. Specifically, the photovoltaic glass 191 is arranged near the outdoor side, and the cooling structure 14 is arranged behind. The glass of the conventional curtain wall unit 10 can be laminated insulating glass or photovoltaic glass. In other embodiments, the photovoltaic unit 19 can also be arranged on all the outer facades of the system to enhance the photovoltaic power generation capacity.

[0026] The following gives an installation example of the present utility model to further explain the gap of the component photovoltaic glass curtain wall system with a cooling structure. First, the interlayer is designed to fix the photovoltaic unit to ensure the connection reliability of the photovoltaic glass. During installation: first, nails are driven on the curtain wall columns and the curtain wall cross beams to fix the aluminum alloy buckle plates; then, holes are opened at the top of the integrally formed aluminum box (temperature control box), and after injecting liquid paraffin (phase change material), the aluminum box is fixed on the aluminum alloy buckle plate by plugging, and then fixed on the curtain wall columns and the curtain wall cross beams; finally, the photovoltaic glass of the photovoltaic unit is closely installed against the aluminum box, and the liquid Paraffin C19 in the aluminum box is used to cool the photovoltaic glass by passive cooling. Among them, at the installation construction site, micro-holes can be opened at the top of the integrally formed aluminum box before installing the aluminum box, and then liquid paraffin is injected; the injection height of the liquid paraffin is at least 3 cm away from the top of the aluminum box to facilitate the injection of the liquid paraffin and accommodate the volume change after the liquid paraffin absorbs heat, avoiding deformation of the aluminum box.

[0027] It should be noted that the above embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same / similar parts among the embodiments, reference can be made to each other. The terms "including" and "having" and their variants involved in the documents of the present utility model are intended to cover non-exclusive inclusion. The terms "first", "second", etc. are used to distinguish similar objects and do not necessarily need to be used to describe a specific order or sequence. Unless otherwise clearly indicated in the context, it should be understood that the data used in this way can be interchanged under appropriate circumstances. In addition, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. In addition, in the above description, the description of well-known structures and technologies is omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0028] The above are only the specific embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A component-type photovoltaic glass curtain wall system with a cooling structure, comprising curtain wall columns, curtain wall beams, and photovoltaic units, wherein the photovoltaic units comprise photovoltaic glass; characterized in that: The system further includes: a buckle plate fixed on the curtain wall column and the curtain wall cross beam; a cooling structure fixed on the buckle plate and arranged side by side with the photovoltaic unit to cool the photovoltaic glass; the cooling structure includes: a temperature regulating box fixed on the buckle plate and arranged side by side with the photovoltaic unit; a phase change material filled in the temperature regulating box for cooling the photovoltaic glass.

2. The system according to claim 1, wherein The buckle plate is an aluminum alloy buckle plate and is fixed on the curtain wall column and the curtain wall cross beam by screws.

3. The system according to claim 1, characterized in that, The cooling structure is fixed on the buckle plate by a plug-in method.

4. The system according to claim 1, characterized in that, The temperature regulating box is an integrally formed aluminum box and has openings through which the phase change material can be injected into the temperature regulating box.

5. The system according to claim 4, wherein The openings are located at the top of the temperature regulating box, and there is a gap between the injection height of the phase change material and the top of the temperature regulating box.

6. The system according to claim 5, characterized in that, The height of the gap is greater than or equal to 3 cm.

7. The system according to claim 1, characterized in that, The phase change material is liquid paraffin.

8. The system according to claim 1, wherein The curtain wall cross beam is arranged at the interlayer position, and the extending direction of the curtain wall cross beam is substantially perpendicular to the extending direction of the curtain wall column.

9. The system according to claim 1, wherein The photovoltaic unit is arranged at the interlayer position and is a fixed photovoltaic unit. The joints between adjacent photovoltaic units are sealed with sealant, and the joints between the photovoltaic unit and adjacent conventional curtain wall units are sealed with sealant.

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