A medium-high temperature solar collector tube assembly assembly welding method and tooling system
A solar collector tube and assembly assembly technology, applied in welding equipment, laser welding equipment, manufacturing tools, etc., can solve the problems of high preparation cost, low joint strength, difficult quality control, etc., to improve quality and improve welding efficiency. , the effect of simplifying the process
Active Publication Date: 2021-06-11
北京天瑞星光热技术有限公司
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Problems solved by technology
[0003] In the prior art, a symmetrical, multi-step assembly method is adopted for the assembly of the above structure, the process is relatively complicated, and the quality is difficult to control, and for the two welding parts involved, that is, the first connecting flange 4 and The metal inner pipe 2 is welded and connected, and the inner side of the bellows 3 is welded to the second connecting flange 6 on the Kovar ring 5. There are certain defects in the existing welding methods, such as in the publication number "CN100513926" The invention patent specification discloses a technical solution titled "a manufacturing process for high-temperature solar collector tubes", which mentions that brazing welding is used for the welding of the above structure, and the equipment used for brazing welding has high preparation costs and low joint strength. Therefore, there is an urgent need to develop a production process for solar collector tubes with fewer assembly processes, reliable welding, and fast
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[0036] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.
[0037] In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer" , "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should therefore not be construed as limiting the invention. In the descrip...
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Abstract
A method for assembling and welding a medium-high temperature solar heat collecting tube assembly disclosed by the present invention comprises the following steps: the step of cutting material, the step of assembling the metal inner tube and the right bellows, the step of assembling the glass outer tube, and the step of assembling the left bellows , to complete the assembly step, the bellows-Kvar alloy ring welding step, the spot welding step, the metal inner tube-bellows welding step, and the cooling step. The invention provides a method for quickly assembling heat collecting tubes, which simplifies the process and reduces the probability of errors; the bellows-kovar alloy ring laser circular seam welding process and the metal inner tube-bellows argon arc welding circular seam welding process, Improve welding efficiency and improve product quality.
Description
technical field [0001] The invention relates to the technical field of manufacturing solar heat collecting tubes, in particular to a method for assembling and welding a medium-high temperature solar heat collecting tube assembly and a tooling system. Background technique [0002] Such as Figure 1-2 As shown, the medium-high temperature solar collector tube includes a glass outer tube 1, a metal inner tube 2 coaxially arranged in the glass outer tube, and a bellows 3 with expansion compensation function. The outer side of the bellows 3 is provided with a first connecting flange 4 , the first connection flange 4 is welded to the metal inner pipe 2 to complete the connection between the bellows 3 and the metal inner pipe 2, and the inner side of the bellows 3 is welded to the second connection flange 6 on the Kovar ring 5, The Kovar ring 5 is sealed with the glass outer tube. [0003] In the prior art, a symmetrical, multi-step assembly method is adopted for the assembly of t...
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IPC IPC(8): B23K26/348
CPCB23K26/348
Inventor 闫超一张磊曹明刚王静杨兴范兵丁晓波
Owner 北京天瑞星光热技术有限公司