Photovoltaic photo-thermal liquid flow window

Abstract

The utility model discloses a photovoltaic photo-thermal liquid flow window, which relates to the field of photovoltaic building integration and comprises outer side glass, a partition cross bar, inner side glass, a solar cell module, circulating water, a circulating water inlet, a circulating water outlet, a shell-and-tube heat exchanger, a water pump, an aluminum alloy side frame, an upper frame and a lower frame. The outer side glass is whole-surface light-transmitting glass and faces outdoors, the upper section of the inner side is inner side glass, and the lower section of the inner side is a solar cell module; the inner side glass and the solar cell module are separated by a separation cross bar, and two ends are welded on the aluminum alloy side frame; the circulating water is deionized water and is positioned between the outer side glass and the inner side glass; the circulating water inlet and the circulating water outlet are respectively positioned in the middle positions of the aluminum alloy lower frame and the aluminum alloy upper frame; the heat exchanger is driven by a water pump to perform internal circulation and exchanges heat with an external circulation working medium through a shell-and-tube heat exchanger; the light transmission of the window is not influenced, the battery is cooled, the temperature is reduced, the efficiency is improved, the utilization efficiency of electricity, heat and solar energy is high, and the return on investment period is shortened.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic building integration, and in particular to a photovoltaic thermal liquid flow window. Background Art

[0002] The integration of solar cells into buildings can fully utilize the wall space of buildings, provide energy for buildings and reduce building energy consumption.

[0003] Liquid flow windows are a special window design that combines the transparency and thermal performance of traditional windows, and adjusts the temperature and transparency of the window through a built-in liquid flow system. However, existing liquid flow windows only convert solar energy into low-grade thermal energy, and because of the need to take into account light transmittance, the photothermal conversion efficiency is less than 40%; semi-transparent solar cells can use solar energy to generate electricity while maintaining light transmittance, but light transmittance loses part of the solar energy, the cell conversion efficiency is low, and the use of a full-surface photovoltaic glass window increases the construction cost. In summary, the existing technology cannot take into account light transmittance, cell efficiency, solar energy utilization and cost. Utility Model Content

[0004] In view of the fact that the liquid flow window in the prior art cannot take into account the light transmittance, battery efficiency, solar energy utilization rate and cost at the same time, the utility model provides a photovoltaic thermal liquid flow window that can take into account the light transmittance, battery efficiency, solar energy utilization rate and cost of the window.

[0005] To achieve the above-mentioned purpose, the utility model provides a photovoltaic thermal liquid flow window, which includes: an inner panel, an outer panel and an inner cavity enclosed by the inner panel and the outer panel, the inner panel is an outer glass facing the outdoors when installed, the inner panel includes an inner glass and a solar cell module, the inner glass is facing the indoors when installed and is located at the upper section of the inner panel, the solar cell module is facing the indoors when installed and is located at the lower section of the inner panel, the inner cavity is provided with circulating water, the circulating water is connected to a heat exchanger through a circulating pipeline, and the heat exchanger is used to exchange heat with an external working medium.

[0006] The photovoltaic thermal liquid flow window as described above further includes a circulating water inlet and a circulating water outlet, wherein the circulating water inlet is located at the lower end of the photovoltaic thermal liquid flow window, and the circulating water outlet is located at the upper end of the photovoltaic thermal liquid flow window.

[0007] The photovoltaic thermal liquid flow window as described above further includes two aluminum alloy side frames, an aluminum alloy upper frame and an aluminum alloy lower frame. The two aluminum alloy side frames, the aluminum alloy upper frame and the aluminum alloy lower frame fix the inner panel and the outer panel.

[0008] As for the photovoltaic thermal liquid flow window as described above, further, the inner glass and the solar cell module are installed separately by a partitioning horizontal bar.

[0009] The photovoltaic thermal liquid flow window as described above, further, the two ends of the dividing horizontal bar are welded on the two aluminum alloy side frames

[0010] In the photovoltaic thermal liquid flow window as described above, further, the solar cell module is any one of a monocrystalline silicon cell or a polycrystalline silicon cell.

[0011] The photovoltaic thermal liquid flow window as described above, further, the heat exchanger is a shell and tube heat exchanger.

[0012] The photovoltaic thermal liquid flow window as described above, further, the circulation pipeline is also provided with a water pump.

[0013] The photovoltaic thermal liquid flow window as described above, further, the circulating water is deionized water.

[0014] As described above, the photovoltaic thermal liquid flow window further has the circulating water inlet located in the middle of the aluminum alloy lower frame, and the circulating water outlet located in the middle of the aluminum alloy upper frame.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) The upper surface of the solar cell is cooled by low-temperature water to maintain a low operating temperature, thereby improving the efficiency of the solar cell;

[0017] (2) The photovoltaic cells are located at the lower section of the inner glass, and the upper section is transparent glass for letting in sunlight, which does not affect the light transmittance of the window;

[0018] (3) The photovoltaic thermal liquid flow window generates heat and electricity simultaneously, improving the efficiency of solar energy utilization and shortening the investment payback period. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the system structure of the photovoltaic thermal liquid flow window in the embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of a separating horizontal bar in an embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the inner wall structure in the embodiment of the utility model;

[0023] Figure 4 It is a front view with a partial cutaway surface of the photovoltaic thermal liquid flow window in the embodiment of the utility model.

[0024] 1. Inner glass; 2. Partition bar; 3. Solar cell module; 4. Outer glass 5. Circulating water 6. Circulating water inlet; 7. Circulating water outlet; 8. Water pump; 9. Shell and tube heat exchanger; 10. Aluminum alloy side frame; 11. Aluminum alloy upper frame; 12. Aluminum alloy lower frame. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. 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 this application.

[0026] Example:

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" in the embodiments of the utility model and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise clearly defined. In addition, unless otherwise clearly defined and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] See also Figures 1 to 4This embodiment provides a photovoltaic thermal liquid flow window, which includes: an inner panel, an outer panel and an inner cavity enclosed by the inner panel and the outer panel, wherein the inner panel is an outer glass facing the outside when installed, and the inner panel includes an inner glass 1 and a solar cell module 3, wherein the inner glass 1 is an upper section facing the indoors and located at the inner panel when installed, and the solar cell module 3 is a lower section facing the indoors and located at the inner panel when installed, wherein the outer glass is a whole light-transmitting glass, and the inner panel is divided into an upper and a lower section, wherein the upper section is a light-transmitting glass that can transmit most of the sunlight, and the lower section is a solar cell module 3 that is not light-transmitting. The inner cavity is provided with circulating water, and the circulating water is connected to a heat exchanger through a circulating pipeline, and the heat exchanger is used to exchange heat with an external working medium.

[0030] In some embodiments, it also includes a circulating water inlet 6 and a circulating water outlet 7, wherein the circulating water inlet 6 is located at the lower end of the photovoltaic thermal liquid flow window, and the circulating water outlet 7 is located at the upper end of the photovoltaic thermal liquid flow window. The water flow inlet is located at the lower end of the liquid flow window, and the inlet water temperature is low, absorbing infrared band sunlight and solar cell waste heat to complete the first stage of heat absorption; the water flow continues to flow to the upper section of the liquid flow window, absorbing the incident sunlight from the upper section of the light-transmitting glass, and completing the second stage of heat absorption. Preferably, the solar cell module 3 is a solar cell of either a monocrystalline silicon cell or a polycrystalline silicon cell. Preferably, the heat exchanger is a shell and tube heat exchanger 9. Preferably, the circulating water is deionized water. The shell and tube heat exchanger 9 realizes heat exchange between the internal circulating water and the external circulating working medium, and the circulating water temperature is reduced and then flows back to the circulating water inlet 6 to complete the cycle.

[0031] In some embodiments, two aluminum alloy side frames 10, an aluminum alloy upper frame 11 and an aluminum alloy lower frame 12 are further included, and the two aluminum alloy side frames 10, the aluminum alloy upper frame 11 and the aluminum alloy lower frame 12 fix and install the inner panel and the outer panel. The inner glass 1 and the solar cell module 3 are separated and installed by a partition horizontal bar 2. The two ends of the partition horizontal bar 2 are welded to the two aluminum alloy side frames 10. The circulating water inlet 6 is located in the middle of the aluminum alloy lower frame 12, and the circulating water outlet 7 is located in the middle of the aluminum alloy upper frame 11.

[0032] In some embodiments, the circulation pipeline is further provided with a water pump 8, and the circulating water is driven by the water pump 8 to circulate internally, thereby avoiding scale generation due to long-term use, extending the service life, and reducing maintenance costs.

[0033] See attached Figure 1The inner glass 1 and the outer glass 4 are transparent glass with a thickness of 10 mm. The intermediate circulating water 5 is 10 mm thick and uses deionized water; the solar cell module 3 is a single crystal silicon cell and is located at the lower side of the inner glass 1; the inner glass 4 and the solar cell module 3 are separated by a partition bar 2; the circulating water 5 is driven by a water pump 8 and flows from bottom to top. When the circulating water 5 flows in from the circulating water inlet 6, it first passes through the solar cell module 3 to absorb infrared sunlight and waste heat generated by the solar cell module 3, and then passes through the upper inner glass 1 to continue to absorb part of the sunlight, and the rest of the sunlight passes through the glass; the circulating water 5 flows through the circulating water outlet 7 to the shell and tube heat exchanger 9 for heat exchange.

[0034] See attached Figure 2 , the cross section of the partition bar 3 is "H" shaped;

[0035] See attached Figure 3 The inner glass 1 and the photovoltaic cell module 3 are separated by a partition bar 2, and the partition bar 2 plays a fixing role;

[0036] See attached Figure 4 The two ends of the partition bar 3 are welded to the aluminum alloy side frame 10; the circulating water inlet 6 and the circulating water outlet 7 are respectively located at the center of the aluminum alloy lower frame 11 and the aluminum alloy upper frame 12;

[0037] The working principle of the utility model is as follows: circulating water 5 flows into the interlayer from the circulating water inlet 6 of the lower end frame 11 of the aluminum alloy, and the circulating water 5 first passes through the solar cell module 3, absorbs heat from the solar cell module 3 and sunlight, and completes the first stage of heating. The low inlet water temperature is conducive to reducing the temperature of the solar cell module and improving the power generation efficiency of the solar cell module; the circulating water 5 gradually heats up, driven by buoyancy and water pump 8 to flow upward, flows through the inner glass 1 to absorb incident sunlight and continue to heat up, and flows out from the circulating water outlet 7 to complete the second stage of heating; the circulating water 5 flows through the circulating water outlet 7 to the shell and tube heat exchanger 9 to exchange heat with the external working medium, and the cooled circulating water 5 re-enters from the circulating water inlet 6 to complete the cycle. The circulating water and the solar cell module 3 provide heat energy and electrical energy for the building respectively.

[0038] It can be seen that the upper surface of the solar cell is cooled by low-temperature water to maintain a low operating temperature, thereby improving the efficiency of the solar cell; the photovoltaic cell is located in the lower section of the inner glass, and the upper end is translucent glass for transmitting sunlight, which does not affect the light transmittance of the window; the photovoltaic thermal liquid flow window generates heat and electricity at the same time, improving the efficiency of solar energy utilization and shortening the investment payback period.

[0039] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0042] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable ordinary technicians in the field to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the essence of the content of the utility model should be included in the protection scope of the utility model.

Claims

1. A photovoltaic thermal liquid flow window, characterized in that: include: An inner panel, an outer panel and an inner cavity enclosed by the inner panel and the outer panel, the inner panel is an outer glass facing the outside when installed, the inner panel includes an inner glass and a solar cell module, the inner glass faces the inside of the room when installed and is located at the upper section of the inner panel, the solar cell module faces the inside of the room when installed and is located at the lower section of the inner panel, the inner cavity is provided with circulating water, the circulating water is connected to a heat exchanger through a circulating pipeline, and the heat exchanger is used to exchange heat with an external working medium.

2. The photovoltaic thermal liquid flow window according to claim 1, characterized in that: It also includes a circulating water inlet and a circulating water outlet. The circulating water inlet is located at the lower end of the photovoltaic thermal liquid flow window, and the circulating water outlet is located at the upper end of the photovoltaic thermal liquid flow window.

3. The photovoltaic thermal liquid flow window according to claim 1, characterized in that: It also includes two aluminum alloy side frames, an aluminum alloy upper frame and an aluminum alloy lower frame. The two aluminum alloy side frames, the aluminum alloy upper frame and the aluminum alloy lower frame fix the inner panel and the outer panel.

4. The photovoltaic thermal liquid flow window according to claim 3, characterized in that: The inner glass and the solar cell module are installed separately by a partitioning horizontal bar.

5. The photovoltaic thermal liquid flow window according to claim 4, characterized in that: The two ends of the partition horizontal bar are welded to the two aluminum alloy side frames.

6. The photovoltaic thermal liquid flow window according to claim 1, characterized in that: The solar cell module is a single crystal silicon cell or a polycrystalline silicon cell.

7. The photovoltaic thermal liquid flow window according to claim 1, characterized in that: The heat exchanger is a shell and tube heat exchanger.

8. The photovoltaic thermal liquid flow window according to claim 1, characterized in that: The circulation pipeline is also provided with a water pump.

9. The photovoltaic thermal liquid flow window according to claim 1, characterized in that: The circulating water is deionized water.

10. The photovoltaic thermal liquid flow window according to claim 2, characterized in that: The circulating water inlet is located at the middle position of the aluminum alloy lower frame, and the circulating water outlet is located at the middle position of the aluminum alloy upper frame.

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