Solar heat collection device

Abstract

The utility model provides a solar heat collection device, and belongs to the technical field of heat collection devices. A solar heat collection device comprises a frame body, a solar heat collection device and a solar heat collection device, the copper pipe is fixedly connected to the support, and the two ends of the copper pipe extend out of the frame body; the heat insulation cotton is fixed in the frame body, a containing groove matched with the copper pipe is formed in the heat insulation cotton, and the containing groove penetrates through the heat insulation cotton so that the two sides of the heat insulation cotton can make contact with the copper pipe; the two heat absorption plates are fixed to the two sides of the heat insulation cotton respectively and make contact with the copper pipe; and the two transparent cover plates are fixed on the frame body, and the two transparent cover plates are respectively distributed on the outer sides of the two heat absorbing plates.

Description

Technical Field

[0001] This utility model belongs to the technical field of solar thermal collectors, specifically a solar thermal collector. Background Technology

[0002] Traditional solar collectors can only receive solar heat from the front, and their heat utilization efficiency is not as high as that of traditional vacuum solar collector tubes. Therefore, their market penetration is not very high. However, solar collectors do not have the problem of tube bursting, so they still have a certain market share. Therefore, improvements are needed to address the problem of low heat collection efficiency of solar collectors. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a solar thermal collector that improves thermal collection efficiency.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A solar thermal collector includes:

[0006] A frame, wherein a support is fixed inside the frame;

[0007] A copper tube, which is fixedly connected to a bracket, with both ends of the copper tube extending out of the frame;

[0008] The heat insulation cotton is fixed in the frame and has a receiving groove for the copper tube. The receiving groove penetrates the heat insulation cotton so that the copper tube can be contacted from both sides of the heat insulation cotton.

[0009] Two heat-absorbing plates are fixed on both sides of the insulation cotton and in contact with the copper pipe.

[0010] Two transparent cover plates are fixed to the frame and are respectively distributed on the outside of the two heat absorption plates.

[0011] In the above-mentioned solar thermal collector, the heat absorption plate is made of any one of copper, aluminum alloy, copper-aluminum composite material, or stainless steel.

[0012] In the above-mentioned solar thermal collector, the surface of the heat absorber plate is coated with a selective absorption coating.

[0013] In the above-mentioned solar thermal collector, the heat-absorbing plate is fixedly connected to the copper tube.

[0014] In the aforementioned solar thermal collector, the copper tube is arranged in an S-shape on the support.

[0015] In the above-mentioned solar thermal collector, the surface of the copper tube has two parallel first planes and two arc-shaped surfaces. The two first planes are fixedly connected to two heat-absorbing plates respectively, and the arc-shaped surfaces are disposed between the two heat-absorbing plates.

[0016] Compared with the prior art, this application has the following advantages:

[0017] In this application, the device uses heat-insulating cotton with receiving grooves inside the frame, through which copper tubes pass and protrude from both sides. Combined with heat-absorbing plates fixed on both sides of the heat-insulating cotton and transparent cover plates installed on the outer side of the heat-absorbing plates, a dual-sided independent heat collection structure is formed. This design allows solar energy to be received by the heat-absorbing plates on both sides of the device, breaking through the limitation of traditional heat-collecting plates that can only absorb heat from the front. It greatly increases the heat absorption area and the range of light receiving angles, thereby making fuller use of solar energy at different times and angles and improving the overall heat collection efficiency. Attached Figure Description

[0018] Figure 1 This is a structural diagram in this application;

[0019] Figure 2 yes Figure 1 A cross-sectional view of position AA in the middle;

[0020] Figure 3 yes Figure 2 A magnified view of a portion of the image;

[0021] Figure 4 This is a structural diagram of the structure after the transparent cover and insulation cotton have been removed in this application;

[0022] In the picture,

[0023] 2. Frame; 21. Bracket;

[0024] 3. Copper tube; 31. First plane; 32. Curved surface;

[0025] 4. Insulation cotton; 41. Receptacle;

[0026] 5. Heat absorption plate;

[0027] 6. Transparent cover. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figures 1 to 4 As shown, a solar thermal collector includes: a frame 2, a copper tube 3, insulation cotton 4, two heat-absorbing plates 5, and two transparent cover plates 6. A bracket 21 is fixed inside the frame 2; the copper tube 3 is fixedly connected to the bracket 21, with both ends of the copper tube 3 extending out of the frame 2; the insulation cotton 4 is fixed inside the frame 2, and the insulation cotton 4 has a receiving groove 41 adapted to the copper tube 3, the receiving groove 41 penetrating the insulation cotton 4 so that the copper tube 3 can be contacted from both sides of the insulation cotton 4; the two heat-absorbing plates 5 are respectively fixed on both sides of the insulation cotton 4 and are in contact with the copper tube 3; the two transparent cover plates 6 are fixed on the frame 2, and the two transparent cover plates 6 are respectively distributed on the outside of the two heat-absorbing plates 5.

[0030] In this application, the device uses heat insulation cotton 4 with receiving groove 41 inside the frame 2, through which copper tube 3 passes and protrudes from both sides. Combined with heat absorption plates 5 fixed on both sides of the heat insulation cotton 4, and transparent cover plates 6 installed on the outer side of the heat absorption plates 5, a double-sided independent heat collection structure is formed. This design allows solar energy to be received by both sides of the device through the heat absorption plates 5, breaking through the limitation of traditional heat collection plates that can only absorb heat from the front. It greatly increases the heat absorption area and the range of light receiving angle, thereby making fuller use of solar energy at different times and angles and improving the overall heat collection efficiency.

[0031] During installation, the solar collector of this application needs to be installed at a certain height above the ground. Then, a reflector is installed at the bottom of the solar collector, maintaining a certain distance between the reflector and the solar collector to reflect light onto the back of the solar collector, so that the other side of the solar collector can also absorb heat simultaneously. The transparent cover 6 is made of tempered glass.

[0032] Specifically, the heat absorber plate 5 is made of any one of copper, aluminum alloy, copper-aluminum composite material, or stainless steel.

[0033] Specifically, the surface of the heat absorber plate 5 is coated with a selective absorption coating. This selective absorption coating exhibits extremely high absorption rates for solar radiation, particularly visible and near-infrared light with wavelengths primarily in the range of 0.3-2.5 μm. It maximizes the capture of solar energy and its conversion into heat energy, minimizing light energy reflection loss. The selective absorption coating is typically an electroplated coating such as black chrome or black nickel, or a vacuum sputtered coating.

[0034] Specifically, the heat absorption plate 5 is fixedly connected to the copper tube 3.

[0035] The heat converted from solar energy absorbed by the heat absorber plate 5 needs to be efficiently transferred to the copper pipe 3 for heat collection and utilization. The fixed connection between the two ensures a tight fit between the contact surfaces, making the heat transfer from the heat absorber plate 5 to the copper pipe 3 more direct and faster, and reducing heat loss during the transfer process.

[0036] Specifically, the copper tube 3 is arranged in an S-shape on the bracket 21.

[0037] Specifically, the surface of the copper tube 3 has two parallel first planes 31 and two arc-shaped surfaces 32. The two first planes 31 are fixedly connected to the two heat-absorbing plates 5 respectively, and the arc-shaped surfaces 32 are disposed between the two heat-absorbing plates 5.

[0038] The two first planes 31 of the copper tube 3 are directly fixedly connected to the heat absorption plates 5 on both sides. Compared with the line contact or point contact of the traditional circular copper tube 3, the plane contact can greatly increase the contact area between the copper tube 3 and the heat absorption plate 5. The arc surface 32 can increase the contact area for heat conduction.

[0039] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture, as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0040] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Meanwhile, the word "and / or" throughout the text means including three solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0041] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0042] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from this utility model or exceeding the scope defined by the appended claims.

Claims

1. A solar thermal collector, characterized in that, include: The frame (2) has a bracket (21) fixed inside it. Copper pipe (3), the copper pipe (3) is fixedly connected to the bracket (21), and both ends of the copper pipe (3) extend out of the frame (2); The heat insulation cotton (4) is fixed inside the frame (2) and has a receiving groove (41) adapted to the copper tube (3). The receiving groove (41) penetrates the heat insulation cotton (4) so ​​that the copper tube (3) can be contacted from both sides of the heat insulation cotton (4). Two heat-absorbing plates (5) are fixed on both sides of the heat insulation cotton (4) and in contact with the copper pipe (3); Two transparent cover plates (6) are fixed on the frame (2) and are respectively distributed on the outside of the two heat absorption plates (5).

2. The solar thermal collector according to claim 1, characterized in that, The heat-absorbing plate (5) is made of any one of copper, aluminum alloy, copper-aluminum composite material, or stainless steel.

3. The solar thermal collector according to claim 1, characterized in that, The surface of the heat-absorbing plate (5) is coated with a selective absorption coating.

4. The solar thermal collector according to claim 1, characterized in that, The heat-absorbing plate (5) is fixedly connected to the copper tube (3).

5. The solar thermal collector according to claim 1, characterized in that, The copper tube (3) is arranged in an S-shape on the bracket (21).

6. The solar thermal collector according to claim 1, characterized in that, The surface of the copper tube (3) has two parallel first planes (31) and two arc-shaped surfaces (32). The two first planes (31) are fixedly connected to the two heat-absorbing plates (5) respectively, and the arc-shaped surfaces (32) are arranged between the two heat-absorbing plates (5).

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