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Heat absorption tube for solar energy

一种吸热管、太阳能的技术，应用在其中领域，能够解决不适合等问题，达到减少热损耗、提高耐用性的效果

Inactive Publication Date: 2010-11-24
SCHOTT AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such collector tubes are simply not suitable for use in parabolic trough collectors

Method used

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  • Heat absorption tube for solar energy
  • Heat absorption tube for solar energy
  • Heat absorption tube for solar energy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] figure 1 The end of the heat absorber tube 1 is shown in section. The heat absorber tube 1 has a jacket tube 2 made of glass and a metal tube 3 arranged concentrically in the jacket tube 2 and coated on the outside with a radiation-selective coating that absorbs solar radiation.

[0042] At the end of the sleeve 2 on the free end side, a glass-to-metal transition piece 5 is fastened, which has a radially inwardly directed band. In the annular space 4 formed between the sleeve 2 and the metal tube 3 , an expansion compensation device 10 in the form of a bellows 11 is arranged, which is fastened with its outer end 13 to the strap 6 of the glass-to-metal transition piece 5 .

[0043] The corrugated tube 11 therefore extends below the glass-to-metal transition piece 5 into the annular space 4 and is fastened at the opposite end to a connecting piece 15 which has an annular disc 16 for this purpose. At its inner edge, the annular disc 16 merges into a conical section 17 wh...

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Abstract

The absorber pipe (1), especially for a parabolic collector for a solar heat collecting apparatus, is described. The absorber pipe (1) has a central metal pipe (3) and a glass sleeve tube (2). An expansion compensation device (10) is provided, which is arranged at least partially in an annular space (4) between the metal pipe (3) and a glass-metal transitional element (5), which is attached to the sleeve tube (2). The expansion compensation device (10) can have a folding bellows (11). Furthermore a connecting element (15) is provided, which has either a cylindrical or a conical section (17, 18, 18'').

Description

[0001] The application for the present invention is a divisional application of the invention patent application whose original application number is 03158832.8, the title of the invention is "heat absorbing pipe for solar energy", and the application date is July 8, 2003. technical field [0002] The invention relates to a heat absorber tube, in particular a parabolic trough collector absorber tube for use in a solar thermal power plant, with a central metal tube and a glass sleeve surrounding the central metal tube, at its free end a glass-metal- The transition piece forms an annular space between the metal pipe and the sleeve, wherein the metal pipe and the transition piece are connected to each other displaceably relative to each other in the longitudinal direction by means of at least one expansion compensation device. The invention also relates to the application of the parabolic trough heat collector and the heat absorption pipe. Background technique [0003] For exam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/48F24J2/46F16L27/12F24S10/40F24S10/70F24S20/20
CPCY02E10/44Y02E10/41F24J2002/4681F24J2/055F24J2/07F24J2/4636F24S2025/6013F24S40/80F24S20/20F24S10/45Y02E10/40
Inventor T·库克尔科恩F·-D·德尼茨N·本茨
Owner SCHOTT AG
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