Solar vacuum tube getter material, fixing structure and mounting method

Abstract

The invention discloses a solar vacuum tube getter material. The solar vacuum tube getter material comprises a getter material body which is provided with a penetrating hole. The mounting mode of a traditional getter material is changed, and the production efficiency is improved in the mode of series soft rope connection; the overall mounting mode is changed, a prior welding process is omitted, the mode of direct sleeved connection is adopted, extra special operation procedures are reduced, the mounting process is simplified, the possibility of defects during welding is eliminated, and the product quality is improved.

Description

technical field [0001] The invention relates to the technical field of removing impurities in vacuum heat collecting tubes of Tianyang Energy, in particular to a solar vacuum heat collecting tube getter, a fixing structure and an installation method. Background technique [0002] With the rapid development of the global economy, the problem of environmental pollution is becoming more and more serious. The use of clean energy has become a consensus. Concentrating Solar Power (CSP, Concentrating Solar Power) has incomparable advantages as a zero-pollution clean energy. Solar power generation technology is the solar thermal power generation industry with the longest commercial use time and the most mature technology at present. The performance of the core device - solar vacuum heat collector tube is the main factor that determines the profit of the power station. [0003] The core of the trough solar power generation technology is to use a parabolic reflector to gather the rece...

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Problems solved by technology

[0006] like Figure 1-2 As shown, the currently commonly used getter 1-1 is in the form of a tablet, and the getter 1-1 is installed in the getter box 1-2, and the getter box 1-2 is a strip type or an annular metal with holes In the box, arrange a certain number of getters 1-1 in the getter box 1-2, such as figure 2 As shown, when in use, the getter box 1-2 is welded to the inside of the vacuum interlayer of the vacuum heat collecting tube, wherein 1-3 is a metal inner tube, 1-4 is a glass outer tube, 1-5 is an outer protective cover, 1 -6 is a bellows, 1-7 is a glass-to-metal seal, 1-8 is a metal sleeve, and the getter box 1-2 is welded on the metal flange of the glass-to-metal seal 1-7 or the metal sleeve 1- 8 or other parts, the disadvantages of this installation method are: (1) the assembly of the getter is cumbersome and the work efficiency is low; (2) the welding connection method of the getter box adds additional special operations, and the installation The process is cumbersome, the production efficiency is low, and defects are prone to occur during welding, which affects product quality

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