Solar evacuated collector tube

Abstract

The utility model discloses a solar evacuated collector tube, which comprises a glass tube and a copper tube, end covers are arranged at two ends of the glass tube, the copper tube is arranged in the glass tube, a plurality of heat-conducting fins are arranged in the glass tube, the copper tube is welded on the heat-conducting fins, and the copper tube is bent back and forth. The front ends and the rear ends of the copper pipes extend out of the glass pipe, arc-shaped reflectors are arranged outside the glass pipe, the interior of the glass pipe is in a vacuum state, the multiple copper pipes bent back and forth are arranged in the glass pipe, the copper pipes are welded to the heat conducting pieces, and heat received by the sun is transmitted on the heat conducting pieces and the arc-shaped reflectors. Therefore, the area of a horizontal plane can be reduced, and convenience in production, storage and transportation is improved.

Description

Technical field:

[0001] The utility model relates to the field of solar vacuum heat collecting tubes. Background technology:

[0002] Energy is the foundation of social development and human progress. With the continuous growth of industry and the increasing needs of human beings, the energy situation is becoming increasingly tense. Green energy is considered to be a fundamental way to solve human energy needs.

[0003] Among them, solar energy is considered to be one of the most promising new energy sources due to its unlimited "reserves", universal distribution, cleanliness and economy. Solar thermal power generation is characterized by good adaptability to the power grid, high photoelectric conversion rate, environmental protection and adjustability, etc., thus becoming an important development direction for solar energy utilization.

[0004] The existing solar vacuum collector tubes include glass tubes, each of which is provided with a copper tube. The glass tubes are arranged horizontally and in parallel. This structure occupies a large space and has caused great problems in production, storage, transportation, etc. Utility model content:

[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a solar vacuum collector tube, which can solve the problem that the glass tubes in the prior art are arranged horizontally and in parallel, and this structure occupies a large space.

[0006] The purpose of the utility model is achieved through the following technical solutions.

[0007] The utility model aims to provide a solar vacuum heat collecting tube, comprising a glass tube and a copper tube, end caps are arranged at both ends of the glass tube, the copper tube is arranged in the glass tube, a plurality of heat conducting plates are arranged in the glass tube, the copper tube is welded on the heat conducting plates, and the copper tube is bent back and forth, the front end and the rear end of the copper tube extend out of the glass tube, an arc-shaped reflective sheet is arranged outside the glass tube, and the glass tube is in a vacuum state.

[0008] Preferably, a plurality of the heat conducting plates are welded into a polygon.

[0009] Preferably, the copper tube is arranged in a deformable heat conducting sheet.

[0010] Preferably, the bending position of the copper tube is arranged inside the glass tube.

[0011] Preferably, a supporting foot is provided at the bottom of the arc-shaped reflective sheet.

[0012] Preferably, the copper tube is filled with antifreeze liquid, heat transfer oil or water.

[0013] Preferably, the heat conducting sheet is made of titanium-plated aluminum.

[0014] Preferably, a vacuum tube is provided on the glass tube.

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

[0016] 1) The utility model describes a solar vacuum heat collecting tube, comprising a glass tube and a copper tube, end caps are arranged at both ends of the glass tube, the copper tube is arranged in the glass tube, a plurality of heat conducting plates are arranged in the glass tube, the copper tube is welded on the heat conducting plates, and the copper tube is bent back and forth, the front end and the rear end of the copper tube extend out of the glass tube, an arc-shaped reflective plate is arranged on the outside of the glass tube, the glass tube is in a vacuum state, a plurality of copper tubes bent back and forth are arranged inside through a glass tube, and the copper tube is welded on the heat conducting plates, and the heat received by the sun is transferred to the heat conducting plates and the arc-shaped reflective plates to improve the heat reflection effect, thereby reducing the area of ​​the horizontal plane and improving the convenience of production, storage and transportation.

[0017] 2) Other advantages of the present invention are described in detail in the embodiment section of the specification. Description of the drawings:

[0018] Figure 1 It is a three-dimensional diagram of a solar vacuum heat collecting tube provided by an embodiment of the utility model;

[0019] Figure 2 It is a cross-sectional view of a solar vacuum heat collecting tube provided by an embodiment of the utility model;

[0020] Figure 3 It is an exploded view of a solar vacuum heat collecting tube provided in an embodiment of the utility model. Specific implementation method:

[0021] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0022] like Figures 1 to 3As shown, this embodiment provides a solar vacuum heat collecting tube, including a glass tube 1 and a copper tube 2, end caps 3 are arranged at both ends of the glass tube 1, the copper tube 2 is arranged in the glass tube 1, a plurality of heat conducting plates 4 are arranged in the glass tube 1, the copper tube 2 is welded on the heat conducting plates 4, and the copper tube 2 is bent back and forth, the front end 21 and the rear end 22 of the copper tube 2 extend out of the glass tube 1, an arc-shaped reflective sheet 5 is arranged on the outside of the glass tube 1, the glass tube 1 is in a vacuum state, a plurality of copper tubes 2 bent back and forth are arranged inside through a glass tube 1, and the copper tube 2 is welded on the heat conducting plates 4, and the heat received by the sun is transferred to the heat conducting plates 4 and the arc-shaped reflective sheets 5, so as to improve the heat reflection effect, thereby reducing the area of ​​the horizontal plane and improving the convenience of production, storage and transportation.

[0023] Furthermore, a plurality of the heat conducting plates 4 are welded into a polygon, and the copper tube 2 is arranged in the deformed heat conducting plates 4, and the polygonal structure can increase the area for receiving sunlight.

[0024] Furthermore, the bending position of the copper tube 2 is arranged inside the glass tube 1 .

[0025] Furthermore, a support foot 51 is provided at the bottom of the arc-shaped reflective sheet 5, so that the entire vacuum heat collecting tube can be placed flat on the ground.

[0026] Furthermore, the copper tube 2 is filled with antifreeze liquid or heat-conducting oil or water, and the antifreeze liquid or heat-conducting oil can be heated quickly to improve the warming effect.

[0027] Furthermore, the heat conducting sheet 4 is made of titanium-plated aluminum, which heats up more quickly.

[0028] Furthermore, the glass tube 1 is provided with a vacuum tube 11, and the vacuum tube 11 is used to conveniently extract the air in the glass tube 1 to achieve a vacuum state.

[0029] Working principle: the sun shines on the heat conducting plate 4 in the glass tube 1, which receives the heat and transfers it to the copper tube 2. There is antifreeze or heat conducting oil in the copper tube 2, which can increase the temperature of the antifreeze or heat conducting oil. The polygonal heat conducting plate 4 can receive more sunlight over the maximum area. The copper tube 2 bends back and forth to improve the heating effect. The polygonal structure can reduce more space and the area of ​​the horizontal plane, thereby improving the convenience of production, storage and transportation. The arc-shaped reflective sheet 5 can reflect sunlight to the surface of the glass tube 2 to improve the heating effect.

[0030] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited thereto. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention are equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A solar vacuum heat collecting tube, comprising a glass tube (1) and a copper tube (2), wherein both ends of the glass tube (1) are provided with end caps (3), and the copper tube (2) is arranged inside the glass tube (1), characterized in that: A plurality of heat conducting plates (4) are arranged inside the glass tube (1), the copper tube (2) is welded to the heat conducting plates (4), and the copper tube (2) is bent back and forth, the front end (21) and the rear end (22) of the copper tube (2) extend out of the glass tube (1), an arc-shaped reflective plate (5) is arranged outside the glass tube (1), and the glass tube (1) is in a vacuum state.

2. A solar vacuum tube collector according to claim 1, characterized in that: A plurality of the heat conducting sheets (4) are welded into a polygon.

3. A solar vacuum tube collector according to claim 2, characterized in that: The copper tube (2) is arranged in a deformable heat conducting sheet (4).

4. A solar vacuum tube collector according to claim 1, characterized in that: The bending position of the copper tube (2) is arranged inside the glass tube (1).

5. The solar vacuum tube collector according to claim 1, characterized in that: A supporting foot (51) is provided at the bottom of the arc-shaped reflective sheet (5).

6. A solar vacuum tube collector according to claim 1, characterized in that: The copper tube (2) is filled with antifreeze liquid, heat transfer oil or water.

7. The solar vacuum tube collector according to claim 1, characterized in that: The heat conducting sheet (4) is made of titanium-plated aluminum.

8. The solar vacuum tube collector according to claim 1, characterized in that: The glass tube (1) is provided with a vacuum tube (11).

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