A three-cavity large-area flat-plate solar air collector

Abstract

The utility model relates to a kind of three-cavity large-area flat-plate solar air collector, and the collector includes three-cavity frame body.The front of the three-cavity frame body is covered with transparent cover plate, and back plate is equipped on the back;The three-cavity frame body between the transparent cover plate and the back plate is respectively provided with heat-insulating layer and heat-collecting film, and heat-collecting tray is provided between the heat-insulating layer and the heat-collecting film;Heat exchange fin is clamped between the heat-collecting film and the heat-collecting tray;Every cavity bottom corner of the three-cavity frame body is provided with air inlet, and cavity top corner is provided with air outlet, and the air inlet and the air outlet are diagonally distributed.The utility model is simple in structure, low in manufacturing cost and easy to install, and by increasing heat-collecting chamber and using efficient heat exchange structure, the heat-collecting efficiency and heat exchange area are improved, while the structural stability and manufacturing cost advantages are maintained.

Description

Technical Field

[0001] This utility model relates to the field of solar thermal collector technology, and in particular to a three-cavity large-area flat-plate solar air collector. Background Technology

[0002] With increasing global emphasis on energy and environmental protection, solar energy, as a clean and renewable energy source, has been widely adopted. Flat-plate solar air collectors, as an important form of solar thermal utilization technology, offer advantages such as simple structure, low manufacturing cost, and convenient installation. However, traditional flat-plate collectors suffer from problems such as low heat collection efficiency and limited heat exchange area.

[0003] Therefore, it is of great significance to develop a three-cavity large-area flat-plate solar air collector with high heat collection efficiency, large heat exchange area, and stable structure. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a three-cavity large-area flat plate solar air collector with high heat collection efficiency, large heat exchange area and stable structure.

[0005] To solve the above problems, the present invention provides a three-cavity large-area flat-plate solar air collector, characterized in that: the collector includes a three-cavity frame; the front of the three-cavity frame is covered with a transparent cover plate, and the back is fitted with a back plate; an insulation layer and a heat collection film are respectively provided on the three-cavity frame between the transparent cover plate and the back plate, and a heat collection tray is provided between the insulation layer and the heat collection film; a heat exchange plate is sandwiched between the heat collection film and the heat collection tray; each cavity in the three-cavity frame has an air inlet at one bottom corner and an air outlet at one top corner, and the air inlet and the air outlet are distributed diagonally.

[0006] The interface between the air inlet and the air outlet faces the back.

[0007] The three-cavity frame has a rectangular shape.

[0008] This utility model has the following advantages compared with the prior art:

[0009] 1. The three-cavity frame of this utility model is a rectangular whole, which is simple and beautiful.

[0010] 2. This utility model integrates three cavities, effectively increasing the solar heat collection area of ​​a single collector and improving heat collection efficiency. It is very suitable for engineering applications with large solar heat collection capacity, such as large-scale solar thermal drying systems, or industrial systems suitable for large-scale application of hot air.

[0011] 3. In this utility model, each cavity of the three-cavity frame is provided with an air inlet at one bottom corner and an air outlet at one top corner, and the air inlets and outlets are distributed diagonally. Therefore, the three heat collection cavities formed are relatively independent, providing selectable conditions for the series or parallel connection of the air inlet and outlet interfaces.

[0012] 4. This utility model has low labor intensity and high construction efficiency, which is conducive to the construction of large-scale solar thermal air projects.

[0013] 5. This utility model has a simple structure, low manufacturing cost, and convenient installation. By increasing the heat collection chamber and adopting a high-efficiency heat exchange structure, it improves the heat collection efficiency and heat exchange area while maintaining structural stability and manufacturing cost advantages. Attached Figure Description

[0014] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0015] Figure 1 This is a front view of the present invention.

[0016] Figure 2 This is a top view of the present invention.

[0017] Figure 3 This is the left view of the present invention.

[0018] Figure 4 This is a bottom view of the present invention.

[0019] Figure 5 This is a partial enlarged view I of the present invention.

[0020] Figure 6 This is a rear view of the present invention.

[0021] Figure 7 This is an isometric view of the present invention.

[0022] Figure 8 This is a schematic diagram of the series connection of the air vents of this utility model.

[0023] Figure 9 This is a schematic diagram of the parallel connection of the air vents of this utility model.

[0024] In the diagram: 1—Three-chamber frame; 2—Transparent cover; 3—Heat collection film; 4—Heat collection tray; 5—Heat exchange plate; 6—Air inlet; 7—Air outlet; 8—Insulation layer; 9—Back panel. Detailed Implementation

[0025] like Figures 1-7As shown, a three-cavity large-area flat-plate solar air collector includes a three-cavity frame 1; the front of the three-cavity frame 1 is covered with a transparent cover plate 2, and the back is equipped with a back plate 9; an insulation layer 8 and a heat collection film 3 are respectively provided on the three-cavity frame 1 between the transparent cover plate 2 and the back plate 9, and a heat collection tray 4 is provided between the insulation layer 8 and the heat collection film 3; a heat exchange plate 5 is sandwiched between the heat collection film 3 and the heat collection tray 4; each cavity in the three-cavity frame 1 has an air inlet 6 at one corner of its bottom and an air outlet 7 at one corner of its top, and the air inlet 6 and the air outlet 7 are distributed diagonally.

[0026] Among them, the interface between the air inlet 6 and the air outlet 7 faces the back.

[0027] The three-cavity frame 1 has a rectangular shape.

[0028] In this invention, three sets of heat-collecting films 3, heat-collecting trays 4, and heat exchange plates 5 constitute three relatively independent heat-collecting cavities on the left, middle, and right, effectively increasing the heat collection and heat exchange area of ​​the collector. Meanwhile, the air inlet 6 and air outlet 7 are assembled diagonally within each heat-collecting cavity, thus forming a three-cavity large-area flat-plate solar air collector.

[0029] like Figures 8-9 As shown, the three relatively independent heat collection cavities are equipped with air inlets 6 and air outlets 7 in diagonal directions, and their interfaces face the back, which can be easily arranged in series or parallel air inlet and outlet modes.

[0030] If the focus is on higher output air temperature, the air inlets 6 and outlets 7 of the three chambers can be connected end-to-end to form a series configuration. If the focus is on higher output air flow, the air inlets 6 and outlets 7 of the three chambers can be connected separately to form a parallel configuration. Therefore, this invention allows for flexible and convenient selection of appropriate interface connection methods according to different application scenarios.

Claims

1. A three-cavity large-area flat-plate solar air collector, characterized in that: The solar collector includes a three-chamber frame (1); the front of the three-chamber frame (1) is covered with a transparent cover plate (2), and the back is fitted with a back plate (9); an insulation layer (8) and a heat collection film (3) are respectively provided on the three-chamber frame (1) between the transparent cover plate (2) and the back plate (9), and a heat collection tray (4) is provided between the insulation layer (8) and the heat collection film (3); a heat exchange plate (5) is sandwiched between the heat collection film (3) and the heat collection tray (4); each cavity in the three-chamber frame (1) has an air inlet (6) at one corner of its bottom and an air outlet (7) at one corner of its top, and the air inlet (6) and the air outlet (7) are distributed diagonally.

2. The three-cavity large-area flat-plate solar air collector as described in claim 1, characterized in that: The interface between the air inlet (6) and the air outlet (7) faces the back.

3. A three-cavity large-area flat-plate solar air collector as described in claim 1, characterized in that: The three-cavity frame (1) has a rectangular shape.

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