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Corrugated tube type solar heat absorber with functions of strengthening heat transferring and reducing heat deformation

A technology for solar heat absorbers and enhanced heat transfer, which is applied in the field of tubular solar heat absorbers and corrugated tube solar heat absorbers, and can solve problems such as heat-deformed metal pipe walls, cracking and failure of glass covers, and reduce Flow resistance, reduce pressure drop, improve the effect of heat transfer

Inactive Publication Date: 2015-11-18
HARBIN INST OF TECH AT WEIHAI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the heat flux density field distribution on the outer surface of the metal circular tube solar heat absorber is highly non-uniform, and the metal circular tube solar heat absorber is easy to withstand high temperature gradients, which will cause thermal deformation and failure of the metal tube wall
Since the thermal deformation of the metal tube is much greater than that of the glass cover, the huge difference in thermal deformation between the metal tube and the glass cover may easily cause the glass cover to break

Method used

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  • Corrugated tube type solar heat absorber with functions of strengthening heat transferring and reducing heat deformation
  • Corrugated tube type solar heat absorber with functions of strengthening heat transferring and reducing heat deformation
  • Corrugated tube type solar heat absorber with functions of strengthening heat transferring and reducing heat deformation

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Embodiment Construction

[0024] Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. For the sake of clarity and conciseness, not all features of the actual implementation are described in the specification. However, it should be understood that many implementation-specific decisions must be made during the development of any such actual implementation in order to achieve the developer’s specific goals, for example, compliance with system and business-related constraints, and these The restriction conditions may vary depending on the implementation. In addition, it should also be understood that, although the development work may be very complicated and time-consuming, for those skilled in the art who benefit from the disclosure of the present invention, such development work is only a routine task.

[0025] Here, it should be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the device str...

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Abstract

The invention relates to a corrugated tube type solar heat absorber with the functions of strengthening heat transferring and reducing heat deformation, and belongs to the technical field of solar utilization. The corrugated tube type solar heat absorber aims at solving the problem of heat deformation of a metal tube of a metal round tube solar heat absorber, and achieving the aim of strengthening heat transferring in the metal tube. The corrugated tube type solar heat absorber comprises a vacuum glass cover, and further comprises a corrugated tube; the corrugated tube is installed in the vacuum glass cover, a vacuum section is formed between the corrugated tube and the vacuum glass cover, and a heat transferring fluid channel is formed in the corrugated tube; and the corrugated tube is an outwards-protruding corrugated tube. According to the corrugated tube type solar heat absorber, a round tube in a traditional parabolic groove type solar spotlight system is replaced with the outwards-protruding corrugated tube, so that the aims of strengthening heat transferring, homogenizing temperature field distribution of the tubular heat absorber and reducing the heat deformation of the tubular heat absorber are achieved.

Description

Technical field [0001] The invention relates to a tubular solar heat absorber, in particular to a corrugated tubular solar heat absorber with enhanced heat transfer and reduced thermal deformation, belonging to the technical field of solar heat utilization. Background technique [0002] With its unlimited reserves and cleanness of development and utilization, solar energy has become one of the effective ways to solve the problems of energy shortage, environmental pollution and greenhouse effect caused by the development and utilization of fossil energy in the 21st century. The utilization of solar energy resources can be divided into photothermal conversion utilization, photoelectric conversion utilization and photochemical conversion utilization according to the energy conversion method. Among them, solar thermal power generation is one of the effective ways of solar thermal conversion, which has the advantages of cleanliness and pollution-free. However, due to the low energy f...

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Application Information

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IPC IPC(8): F24J2/26F24S10/75
CPCY02E10/44
Inventor 谭建宇王富强来庆志谢银模马兰新王程超
Owner HARBIN INST OF TECH AT WEIHAI
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