Photo-thermal assembly capable of efficiently collecting heat

Abstract

The utility model discloses a photo-thermal assembly capable of efficiently collecting heat. The photo-thermal assembly comprises a photovoltaic laminated piece, a heat collector and a film tool, the photovoltaic laminated piece is arranged on the top of the heat collector, and the heat collector comprises a flat pipe and a collecting pipe. A plurality of flat pipes are arranged and are connected side by side; an inner cavity of the flat pipe is provided with a plurality of flow channels along the length direction of the flat pipe; and collecting pipes are arranged at the two ends of the flat pipes and communicate with the flow channels. The heat transfer efficiency of the photo-thermal assembly is high.

Description

Technical Field

[0001] The utility model relates to the technical field of collectors, and more specifically to a photothermal component with high-efficiency heat collection. Background Art

[0002] With the continuous aggravation of global environmental problems, people's demand for clean energy is not limited to photovoltaic power generation.

[0003] As a renewable clean energy, solar energy has broad application prospects in the field of hot water supply. The collector in the solar water heating system is the core equipment and plays a key role in the process of heat energy conversion.

[0004] Although there are various collector materials on the market at present, the heat exchange effect of most collectors is poor and the efficient utilization of energy cannot be achieved.

[0005] Therefore, researching and developing a photothermal component with high heat transfer efficiency and high-efficiency heat collection is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0006] In view of this, the utility model provides a photothermal component with high heat transfer efficiency and high-efficiency heat collection.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A photothermal component with high-efficiency heat collection, comprising:

[0009] A photovoltaic laminate,

[0010] A collector, the photovoltaic laminate is arranged on the top of the collector, and the collector includes: flat tubes and header pipes; a plurality of flat tubes are provided and connected side by side; a plurality of flow channels are arranged in the inner cavity of the flat tube along its length direction; header pipes are arranged at both ends of the flat tube, and the header pipes are communicated with the flow channels.

[0011] The beneficial effect of adopting the above technical scheme is that in the utility model, refrigerant is introduced into one end of the header pipe, and the refrigerant will flow in the flow channels of the flat tube and finally be discharged from the other end of the header pipe. While the refrigerant circulates in the flat tube, it will absorb the heat of the photovoltaic laminate, thereby reducing the energy consumption of the external compressor and effectively improving the heat conversion efficiency.

[0012] Preferably, a baffle is arranged in the inner cavity of the header pipe, and the shape and size of the baffle are the same as the cross-sectional area of the inner cavity of the header pipe.

[0013] Preferably, reinforcing ribs are arranged at the edges below the plurality of flat tubes. The reinforcing ribs are welded to the flat tubes and the header pipes to play a role in support and fixation.

[0014] Preferably, the sum of the thicknesses of the photovoltaic laminate, the flat tube, and the reinforcing rib is the same as the external dimension of the header tube.

[0015] Preferably, a plurality of indentations are provided on one side of the flat tube connected to the photovoltaic laminate, and the flat tube is bonded to the photovoltaic laminate. The provision of the indentations makes the bonding between the flat tube and the photovoltaic laminate more firm.

[0016] Preferably, the flat tube is bonded to the photovoltaic laminate with a thermally conductive adhesive.

[0017] Preferably, the thermally conductive adhesive is a hot melt adhesive, a structural adhesive, or a silicone adhesive.

[0018] Preferably, the arrangement spacing between adjacent flat tubes is less than 6 mm.

[0019] Preferably, a plurality of partition plates are provided in the inner cavity of the flat tube, and the flow channels are formed between adjacent two partition plates.

[0020] Preferably, the photovoltaic laminate includes: a front plate, a front encapsulation layer, solar cells, a rear encapsulation layer, and a rear plate; the front plate, the front encapsulation layer, the solar cells, the rear encapsulation layer, and the rear plate are stacked layer by layer from top to bottom.

[0021] As can be seen from the above technical solutions, compared with the prior art, the present invention discloses a solar thermal component with high-efficiency heat collection, and its beneficial effects are:

[0022] (1) In the present invention, the refrigerant enters the flat tube through the header tube and flows in the flat tube, and can absorb the heat of the photovoltaic laminate, thereby reducing the energy consumption of the external compressor and effectively improving the heat conversion efficiency;

[0023] (2) The combination of the solar collector and the photovoltaic laminate allows the simultaneous photovoltaic conversion of solar energy and the collection of thermal energy, thereby realizing the efficient utilization of various forms of energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0025] Figure 1 The drawings are schematic structural diagrams of the solar thermal component provided by the present invention;

[0026] Figure 2 The drawings are schematic structural diagrams of the connection of a plurality of flat tubes provided by the present invention;

[0027] Figure 3 The accompanying drawings are the end - face structure diagrams of the flat tubes provided by the present utility model;

[0028] Figure 4 The accompanying drawings are the cross - sectional views of the solar thermal component provided by the present utility model;

[0029] Figure 5 The accompanying drawings are the cross - sectional views of the laminated state of the solar thermal component provided by the present utility model;

[0030] Figure 6 The accompanying drawings are the schematic diagrams of the flow of the refrigerant in the flat tubes and the manifold tubes provided by the present utility model.

[0031] Among them, in the figures,

[0032] 1 - Photovoltaic laminate;

[0033] 11 - Front plate; 12 - Front encapsulation layer; 13 - Solar cell; 14 - Rear encapsulation layer; 15 - Rear plate;

[0034] 2 - Collector;

[0035] 21 - Flat tube; 22 - Manifold tube; 23 - Flow channel; 24 - Baffle; 25 - Reinforcing rib; 26 - Indentation;

[0036] 3 - Mold; 4 - Thermal conductive adhesive. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0038] As Figure 1-6 shown, an embodiment of the present utility model discloses a highly efficient heat - collecting solar thermal component, including:

[0039] Photovoltaic laminate 1,

[0040] Collector 2, the photovoltaic laminate 1 is arranged on the top of the collector 2, and the collector 2 includes: a flat tube 21 and a manifold tube 22; a plurality of flat tubes 21 are provided and are connected side by side; a plurality of flow channels 23 are arranged along the length direction of the inner cavity of the flat tube 21; manifold tubes 22 are arranged at both ends of the flat tube 21, and the manifold tubes 22 are communicated with the flow channels 23.

[0041] When the photothermal component is pressed and formed, the photovoltaic laminate 1 and the collector 2 are stacked from top to bottom first, placed above the mold 3, and enter the lamination chamber in the laminator. After high temperature, vacuum pumping, lamination, and curing, they are completely formed into one body. Due to the height difference at the bottom, the components cannot be stressed evenly, and bubbles and other defects are likely to occur. Even the glass may be crushed, so it is necessary to add a mold at the bottom (such as Figure 5 shown), so that the components are integrated.

[0042] To further optimize the above technical solution, the wall thickness of the flat tube 21 is less than 5 mm, the material is aluminum alloy, and the surface is treated with zinc spraying for anti-corrosion. The flat tube 21 is integrally formed by hot extrusion molding technology. The flat tube 21 with a thickness of 4 mm can withstand a pressure of more than 5 MPA, which is safe and reliable. The flat tube 21 is light in weight. The hollow part of the internal channel of the flat tube 21 accounts for more than 3 / 4 of the volume of the flat tube 21. Compared with the blown plate of the same thickness, it is lighter in weight and has a higher flow channel utilization rate. Both the front and rear of the flat tube 21 are flat structures, and the front and rear shrinkage rates are the same. The flat tube 21 array has gaps and will not warp longitudinally when bonded to the photovoltaic laminate 1 at high temperature. There are metal indentations on the side where the flat tube 21 is combined with the photovoltaic laminate 1 to control the internal shrinkage frequency, and the transverse warping is improved.

[0043] To further optimize the above technical solution, a baffle 24 is arranged in the inner cavity of the manifold tube 22. The shape and size of the baffle 24 are the same as the cross-section of the inner cavity of the manifold tube 22. The baffle 24 can block the refrigerant, change the flow direction of the refrigerant, and play a role in guiding the flow. The position of the baffle 24 in the manifold tube 22 and the number of the baffle 24 can be adjusted appropriately according to needs.

[0044] To further optimize the above technical solution, a refrigerant inlet pipe and a refrigerant outlet pipe are respectively arranged at both ends of the manifold tube 22. Both the refrigerant inlet pipe and the refrigerant outlet pipe are copper pipes, which are welded to both ends of the manifold tube 22.

[0045] To further optimize the above technical solution, reinforcing ribs 25 are arranged at the edges below multiple flat tubes 21. The flat tubes 21, the manifold tubes 22, the baffles 24, and the reinforcing ribs 25 are integrally welded.

[0046] To further optimize the above technical solution, the sum of the thicknesses of the photovoltaic laminate 1, the flat tube 21, and the reinforcing rib 25 is the same as the external dimension of the manifold tube 22.

[0047] To further optimize the above technical solution, multiple indentations 26 are arranged on the side surface of the flat tube 21 connected to the photovoltaic laminate 1, and the flat tube 21 is bonded to the photovoltaic laminate 1.

[0048] To further optimize the above technical solution, the flat tube 21 and the photovoltaic laminate 1 are bonded through a thermal conductive adhesive 4, and the thermal conductive adhesive 4 is a hot melt adhesive or a structural adhesive or a silicone adhesive.

[0049] To further optimize the above technical solution, the arrangement spacing between multiple flat tubes 21 is less than 6 mm.

[0050] To further optimize the above technical solution, a plurality of partition plates are arranged in the inner cavity of the flat tube 21, and a flow channel 23 is formed between two adjacent partition plates.

[0051] To further optimize the above technical solution, the photovoltaic laminate 1 includes: a front plate 11, a front encapsulation layer 12, a battery cell 13, a rear encapsulation layer 14, and a rear plate 15; the front plate 11, the front encapsulation layer 12, the battery cell 13, the rear encapsulation layer 14, and the rear plate 15 are stacked layer by layer from top to bottom.

[0052] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and reference can be made to the description in the method part for related parts.

[0053] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A highly efficient heat-collecting photothermal component, characterized in that: include: Photovoltaic laminate (1), A heat collector (2), wherein the photovoltaic laminate (1) is arranged on the top of the heat collector (2), and the heat collector (2) comprises: a flat tube (21) and a manifold (22); a plurality of the flat tubes (21) are arranged and connected in parallel; a plurality of flow channels (23) are arranged in the inner cavity of the flat tube (21) along its length direction; the manifold (22) is arranged at both ends of the flat tube (21), and the manifold (22) is connected to the flow channel (23).

2. The photothermal component with high efficiency heat collection according to claim 1, characterized in that: The inner cavity of the manifold (22) is provided with a baffle (24), and the shape and size of the baffle (24) are the same as the cross-section of the inner cavity of the manifold (22).

3. The photothermal assembly for efficient heat collection according to claim 1, characterized in that: Reinforcing ribs (25) are provided at the lower edges of the plurality of flat tubes (21).

4. The photothermal assembly for efficient heat collection according to claim 1, characterized in that: The sum of the thicknesses of the photovoltaic laminate (1), the flat tube (21) and the reinforcing rib (25) is the same as the external dimensions of the collector (22).

5. The photothermal assembly for efficient heat collection according to claim 1, characterized in that: A side surface of the flat tube (21) connected to the photovoltaic laminate (1) is provided with a plurality of indentations (26), and the flat tube (21) is bonded to the photovoltaic laminate (1).

6. The photothermal assembly for efficient heat collection according to claim 5, characterized in that: The flat tube (21) is bonded to the photovoltaic laminate (1) via a heat-conducting adhesive (4).

7. The photothermal assembly for efficient heat collection according to claim 6, characterized in that: The thermally conductive adhesive (4) is hot melt adhesive, structural adhesive or silica gel.

8. The photothermal assembly for efficient heat collection according to claim 1, characterized in that: The arrangement spacing between adjacent flat tubes (21) is less than 6 mm.

9. The highly efficient heat-collecting photothermal assembly according to claim 8, characterized in that: A plurality of partition plates are arranged in the inner cavity of the flat tube (21), and the flow channel (23) is formed between two adjacent partition plates.

10. The photothermal assembly for efficient heat collection according to claim 1, characterized in that: The photovoltaic laminate (1) comprises: a front plate (11), a front encapsulation layer (12), a battery cell (13), a rear encapsulation layer (14) and a rear plate (15); the front plate (11), the front encapsulation layer (12), the battery cell (13), the rear encapsulation layer (14) and the rear plate (15) are stacked in order from top to bottom.

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