Welding anti-deformation water-cooling device for drive tube base penetrating part and using method of welding anti-deformation water-cooling device

Abstract

The invention discloses a welding anti-deformation water-cooling device for a drive tube base penetrating part and a using method of the welding anti-deformation water-cooling device. The welding anti-deformation water-cooling device comprises a rigid restraining mechanism, a water-cooling mechanism and a circulating cooling water tank, wherein the water-cooling mechanism comprises a water inlet hose, a water outlet hose, a fast joint, a lower sealing plug, a fan-shaped plate limiting ring, a rolling stopper pin, a reflow tube and an upper sealing plug, wherein the upper sealing plug and the lower sealing plug are separately arranged at upper and lower ends of a drive tube base cavity; a through hole is formed in the axis of the lower sealing plug; the reflow tube is arranged at the upperend of the through hole of the upper sealing plug; and the water return hose is arranged at the lower end of the through hole of the lower sealing plug. According to the welding anti-deformation water-cooling device for the drive tube base penetrating part and the using method of the welding anti-deformation water-cooling device disclosed by the invention, the rigid restraining mechanism and the water-cooling mechanism are mounted inside a drive tube base, and water-cooling anti-deformation is performed during rigid restraining and deformation preventing, so that drive tube base welding deformation can be controlled to the greatest extent, which cannot be achieved by other devices.

Description

technical field [0001] The invention relates to a welding deformation preventing device, in particular to a device for controlling the sealing welding deformation of a drive tube seat on a top cover assembly of a nuclear power reactor pressure vessel and a use method thereof. Background technique [0002] At present, the welding seam of the J-shaped groove of the sealing welding of the driving tube seat is a load-bearing weld, and the heat treatment is not performed after the sealing welding of the tube seat and the top cover. After welding, there are high requirements for the position of the driving tube seat and the top cover. Therefore, the welding deformation should be strictly controlled during the drive welding process to make the welding deformation as small as possible. [0003] Usually, the measures to drive the sealing welding of the pipe seat to prevent welding deformation include: [0004] (1) Use a water cooling device inside the drive tube seat to reduce the h...

AI Technical Summary

Problems solved by technology

[0009] According to the above-mentioned technical problems, a kind of anti-deformation water-cooling device for welding the penetrating part of the drive tube base and its use method are provided, which is used to solve the existing sealing welding anti-welding deformation of the drive tube base, and it is easy to use the internal rigid support to adjust the drive tube base. The inner wall causes damage, and the use of external rigid fixation affects the welding operation of the welding operator, and the disadvantage of being unable to use automatic welding methods for welding

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