Method and device for controlling welding deformation of gas turbine flame tube rectifying ring assembly

Abstract

The invention discloses a method and device for controlling welding deformation of a gas turbine flame cylinder rectification ring assembly. The device includes a first pressing plate, a position degree positioning pin, a simulation block of a diffusion box, an outer ring positioning groove, an inner ring positioning groove and a second pressing plate . In the present invention, the rectification outer ring, the rectification inner ring and the connecting plate column are welded to form a first annular assembly, and the first annular assembly includes an annular flow channel cavity between the rectification outer ring and the rectification inner ring, and then multiple Diffusion boxes are grouped, and then respectively welded with the inner support ring of the diffuser box and the outer support ring of the diffuser box to form the second annular assembly, and finally the second annular assembly is integrally put into the annular flow channel cavity of the first annular assembly. , spot welding positioning, welding the first ring component and the second ring component.

Description

technical field [0001] The invention relates to the technical field of gas turbine welding deformation control, and mainly relates to a method and a control device for controlling the deformation of the cross-sectional area of ​​a flow channel during welding of a gas turbine flame tube rectifying ring assembly. Background technique [0002] The rectification ring assembly of the gas turbine flame tube is mainly combined with argon arc welding and vacuum brazing, and 40 diffuser boxes and 10 horseshoe-shaped plate columns are connected with the outer rectification ring and the inner rectification ring to form a rectification ring assembly. According to the design requirements, the installation height of the diffuser box is not greater than 4±0.3mm, and the roundness of the outer rectifying ring and the inner rectifying ring after welding is not greater than 2.0mm. Therefore, in order to ensure the design requirements, it is necessary to have a reasonable processing method and...

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Problems solved by technology

[0003] The present invention aims to provide a method and device for controlling the welding deformation of the gas turbine flame tube rectifying ring assembly, which solves the problem that the cross-sectional area of ​​the diffuser box of the above flame tube rectifier ring assembly has a large deviation after welding, and the welding height of the diffuser box exceeds 4±0.3mm. And the coaxiality difference between the inner and outer rings after welding, the position of multiple horseshoe-shaped plate columns exceeds the design requirements

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