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Chained high-temperature solar collector tube

A heat collecting tube, high temperature technology, applied in the field of solar thermal utilization, can solve the problems of imitation, exploration, testing, etc., and achieve the effect of improving the energy quality of heat source, increasing the density, and wide application range

Inactive Publication Date: 2012-07-25
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the research on the metal heat absorber heat collector tube, although some achievements have been made abroad, it is still in the stage of imitation, exploration and experiment in China.

Method used

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  • Chained high-temperature solar collector tube
  • Chained high-temperature solar collector tube
  • Chained high-temperature solar collector tube

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Embodiment Construction

[0021] The present invention is achieved by dividing the metal tube into several heat storage unit sections 1, and encapsulating a heat storage medium 11 capable of phase-change heat storage in each section, which is used to absorb and store the heat energy after the outer wall coating of the heat collection tube is converted from sunlight to heat , and then the multi-section heat storage unit section 1 is connected into a chain and positioned in the metal support rod 6 made of three metal rods, and can slide forward and backward along it. Its external double-layer vacuum glass tube 2 is used as a coat to ensure good thermal insulation performance. Finally, use an end base 3 with a thermal conductivity less than 0.6λ / [W / m·k] to fix both ends, and use flanges 4 at both ends to limit the chain heat storage unit section 1. At the same time, the metal rod made of metal The support rod 6 is also fixed on the extended circular pipe section 5 extended by the flange through screws and...

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Abstract

The invention relates to a chained high-temperature solar collector tube. Two end bases (3) are disposed at two ends of a double-layer vacuum glass tube (2) respectively. A flange (4) is disposed at the outer end of each end base (3). An extension round tube (5) is disposed at the outer end of each flange (4). Metal support bars (6) penetrate through the double-layer vacuum glass tube (2), the end bases (3), the flanges (4) and the extension round tubes (5). Two ends of each metal support bar (6) are fastened to the outer ends of the extension round tubes (5) through nuts and bolts (7). A heat-storage unit section (1) is fastened in the double-layer vacuum glass tube (2) by using three metal support bars (6) as a guide. By using the chained high-temperature solar collector tube, the technical problem of sealing of anisotropic glassy metal of a traditional high-temperature collector tube is solved. The high temperature of more than 380 DEG C can be obtained, and the shortages of solar high-temperature utilization are made up.

Description

technical field [0001] The invention belongs to a solar heat utilization technology, and specifically proposes a high-temperature heat collection tube adopting a chain structure. Background technique [0002] The trough solar thermal power generation technology is a mainstream solar thermal power generation technology, and the solar collector tube is the key device in the core technology of the commercialization of the trough solar thermal power generation technology. [0003] There are many types of solar collector tubes, but only metal heat absorber vacuum tubes can be used in the technical field of solar trough thermal power generation, because this kind of heat collector tubes must be able to withstand high temperature environments and have pressure-bearing performance. The main feature of the structure of this metal heat absorbing vacuum heat pipe is that it adopts a metal tube with double-ended openings. The outer wall of the metal tube has a high-temperature selective...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/46F24J2/32F24S10/95
CPCY02E10/44
Inventor 陆勇肖睿田先道吴越琼蒋伟莉周维师
Owner SOUTHEAST UNIV
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