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Solar vacuum tube, solar heat collector and application method of solar vacuum tube

A solar collector and vacuum tube technology, applied in the field of solar vacuum tubes and solar thermal collectors, can solve the problems of low thermal efficiency of solar vacuum tubes, inability to replace wearing parts, and high cost of use, and achieves improved heat collection efficiency, easy replacement, and thermal conductivity. Good results

Inactive Publication Date: 2018-05-11
秦建锋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The solar vacuum tube in the prior art has a structure like an elongated thermos bile, with a vacuum between the inner and outer layers. The surface of the inner glass tube is coated with a spectrally selective absorbing coating as a heat-absorbing film by a special process, which is used to Maximum absorption of solar radiation energy; the existing solar vacuum tube, because the inner tube and the outer tube are sealed, once the coating on the inner tube falls off or is damaged, the solar vacuum tube will be scrapped, and the wearing parts cannot be replaced. Higher cost of use
And the thermal efficiency of above-mentioned solar vacuum tube is low, and heating effect is relatively poor

Method used

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  • Solar vacuum tube, solar heat collector and application method of solar vacuum tube
  • Solar vacuum tube, solar heat collector and application method of solar vacuum tube
  • Solar vacuum tube, solar heat collector and application method of solar vacuum tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1 as Figure 1 to Figure 2 As shown, the solar vacuum tube of the present embodiment comprises a transparent outer tube 31 with an open end and a transparent inner tube 33, a C-shaped reflector 32, a heat pipe 37, an end cover 30, two magnetic couplings 34, and the opening of the transparent outer tube 31 The end is sealed with the end cap 30, and the center of the end cap 30 is provided with a through hole. The closed end of the transparent inner tube 33 passes through the through hole in the center of the end cap 30 and is fixedly arranged in the transparent outer tube 31 along the axial direction of the transparent outer tube 31. Place the open end of the transparent inner tube 33 on the end cover 30, and after the heat pipe 37 and the transparent inner tube 33 are inserted and matched, the through hole and the heat pipe 37 are sealed, and the heat transfer medium to be heated circulates in the heat pipe 37; C The shape reflector 32 is rotatably arranged in t...

Embodiment 2

[0020] A kind of solar thermal collector, comprises above-mentioned solar vacuum tube, also comprises the tracking driving device that is used to drive the prime mover permanent magnet to rotate, as image 3 The tracking driving device shown includes a rotating base 41, a rotating motor, a first photodiode 42, a second photodiode 43, and a light shield 44. The rotating motor (not shown in the figure) is in transmission cooperation with the rotating base 41, and the prime mover The permanent magnet and the rotating base 41 are driven and matched so that the rotating motor can drive the rotating base 41 to rotate synchronously with the prime mover permanent magnet. The first photodiode 42 and the second photodiode 43 are arranged on both sides of the upper end surface of the rotating base 41. The light shield 44 is placed between the first photodiode 42 and the second photodiode 43; the tracking drive device also includes a control circuit ( not shown in the figure), the control...

Embodiment 3

[0022]The specific usage method of the solar heat collector described in Embodiment 2 is as follows: the upper end surface of the rotating base 41 and the reflector 32 are both set towards the sun, and the axial centerline of the reflector 32 is consistent with or parallel to the extending direction of the shading plate 44 Setting, during the initial state, the first photodiode 42 and the second photodiode 43 of the same model on the upper end surface of the base 41 are turned towards the sun; The current signals generated by the photodiode 42 and the second photodiode 43 are sent to the control circuit, and the control circuit compares the magnitude of the current generated by the first photodiode 42 and the second photodiode 43. When the currents generated by the two are the same, it indicates that the first Photosensitive diode 42, the second photosensitive diode 43 are all facing the sun, and now reflective plate 32 is placed on the angle of facing the sun equally, needn't ...

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Abstract

The invention relates to a solar vacuum tube, a solar heat collector and an application method of the solar vacuum tube. The solar vacuum tube comprises a transparent outer tube, a transparent inner tube, a C-shaped light reflecting plate, a thermal tube and an end cover, wherein one end of the transparent outer tube is opened; one end of the transparent inner tube is opened as well; the end coveris hermetically matched with the open end of the transparent outer tube; the transparent inner tube is fixedly arranged inside the transparent outer tube and along the axial direction of the transparent outer tube after penetrating through the center of the end cover so that the open end of the transparent inner tube is placed on the end cover; the thermal tube and the transparent inner tube arematched with each other in an insertion manner; the C-shaped light reflecting plate is rotationally arranged inside the transparent outer tube and below the transparent inner tube; a vacuum space is formed between the transparent inner tube and the transparent outer tube so that the sunshine can be focused and reflected onto the transparent inner tube and the thermal tube after irradiating the light reflecting plate; the inner tube adopts a transparent tube, and a replaceable thermal tube is arranged, so the thermal tube can be conveniently replaced after being damaged, and thus the overall vacuum tube needs not to be scrapped totally; moreover, the thermal tube adopts a copper tube, so direct and rapid heat conduction is realized, high thermal efficiency is realized, and the cost can be effectively lowered.

Description

technical field [0001] The invention relates to the technical field of solar energy equipment, in particular to a solar vacuum tube, a solar heat collector and an application method thereof. Background technique [0002] The definition of a solar collector is: a device that absorbs solar radiation and transfers the generated heat energy to a heat transfer medium. Among them, the heat pipe collector has the characteristics of high heat collection efficiency, large heat gain, high output temperature, good pressure operation, high structural strength, and strong frost resistance; the heat pipe collector is generally composed of superconducting heat pipes, aluminum wings, It is composed of heat collecting tube, united incubator, frame and other parts. The sunlight passes through the heat collecting tube and irradiates on the selective absorption film of the inner tube of the heat collecting tube. Heating and vaporization, the vaporized heat transfer medium rises to the condens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24S10/70F24S23/70F24S50/20
CPCY02E10/44Y02E10/47
Inventor 秦建锋
Owner 秦建锋
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