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Novel coupling type solar high-temperature heating pipe

A high-temperature heating and coupled technology, which is applied in the direction of solar thermal power generation, solar thermal devices, heating devices, etc., can solve the problem that the temperature can only be heated to about 120 ℃, which cannot meet the application requirements, and the loss due to thermal radiation The effect of less, high thermal conductivity of the medium, and fast heat conduction

Inactive Publication Date: 2012-10-03
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the setting of the heat conduction plate can increase the heat conduction speed and the temperature of the heated body to a certain extent, even though the heat conduction plate is made of copper with good thermal conductivity, its thermal conductivity is still low, and the temperature can only be heated to about 120°C. , still cannot meet the application requirements of most industries

Method used

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  • Novel coupling type solar high-temperature heating pipe
  • Novel coupling type solar high-temperature heating pipe
  • Novel coupling type solar high-temperature heating pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A new type of coupled solar high temperature heating tube, such as figure 1 As shown, the gravity heat pipe 11 and the all-glass vacuum tube 8 are included. The all-glass vacuum tube 8 is sleeved on the outside of the gravity heat pipe 1, and the micro-heat pipe 10 is arranged between the gravity heat pipe 11 and the all-glass vacuum tube 8 to absorb the solar energy absorbed by the all-glass vacuum tube 8. The heat is transferred to the gravity heat pipe 11 efficiently and quickly through the micro heat pipe 10 while exchanging convective heat with the air and the gravity heat pipe 11 . One end of the micro heat pipe 10 is fixedly connected to the outer wall of the gravity heat pipe 11, and the other end is in close contact with the side wall of the all-glass vacuum tube 8 through its own elastic deformation, so as to achieve effective heat transfer and facilitate assembly. The micro heat pipe 10 can be one or more than one in the all-glass vacuum tube 8 according to t...

Embodiment 2

[0027] Such as figure 2 and image 3 As shown, on the basis of Embodiment 1, a curved reflector 12 can be arranged in the all-glass vacuum tube 8, and the focal area of ​​the curved reflector is concentrated on the gravity heat pipe 11, so as to focus the transmitted sunlight on the gravity heat pipe 11 Inside.

[0028] In the all-glass vacuum tube 8, a 1 / 4 to 1 / 2 circular arc-shaped reflector 12 can be arranged, and the focal area of ​​the arc-shaped reflector 12 is concentrated on the gravity heat pipe 11, so as to focus the transmitted sunlight in the gravity heat pipe 11 . The curved reflector 12 can be made of aluminum, and its reflective surface is a mirror surface. The curved reflector in the all-glass vacuum tube can effectively prevent oxidation and the influence of external dust. The curved reflector 12 and the gravity heat pipe 11 are connected and fixed through the connecting piece 13. The connecting piece 13 may be a micro heat pipe, and the micro heat pipe is...

Embodiment 3

[0030] Such as Figure 4 and Figure 5 As shown, on the basis of Embodiment 1 or Embodiment 2, a selective coating film is provided on the outer wall of the gravity heat pipe 11 to increase the absorption rate of sunlight.

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Abstract

The invention relates to a novel coupling type solar high-temperature heating pipe which comprises a gravity assisted heat pipe and an all-glass vacuum pipe, wherein the all-glass vacuum pipe is sleeved at the outer side of the gravity assisted heat pipe; a micro heat pipe is arranged between the gravity assisted heat pipe and the all-glass vacuum pipe; a cambered reflecting plate which is 1 / 4-1 / 2 of a circle can be arranged in the all-glass vacuum pipe; and the focal regions of the cambered reflecting plate are centralized on the gravity assisted heat pipe. Compared with the prior art, the invention has the advantages that the medium between the all-glass vacuum pipe and the gravity assisted heat pipe has higher heat conduction coefficient, high heat conduction speed and little loss of heat radiation and can provide high-temperature stream mixing hot water with the temperature of more than 200 DEG C.

Description

technical field [0001] The invention relates to a solar heat conduction and heat transfer device, in particular to a novel coupled solar high temperature heating tube. Background technique [0002] The solar all-glass vacuum heat collector has the advantages of high absorption rate of sunlight and little influence by the sun's altitude angle, and has been widely used. However, the all-glass vacuum heat collector also has the disadvantages of low thermal conductivity of the medium between the all-glass vacuum tube and the gravity heat pipe (usually by air heat conduction), slow heat conduction, and no focusing effect, which cannot make the temperature of the heated body reach a high temperature. Therefore, its quality and efficiency are very low, and it can only be used in households, and cannot be applied on a large scale in the industrial range, which limits the application range of solar energy. [0003] In order to overcome the above-mentioned shortcomings, the Chinese u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24J2/46F24J2/48
CPCY02E10/40
Inventor 刘效洲陈颖
Owner GUANGDONG UNIV OF TECH