Nuclear power plant steam generator water chamber partition weld seam penetration testing equipment

Abstract

The invention discloses a weld penetration detection equipment for a water chamber partition plate in a nuclear power plant steam generator. It includes a cleaning tool and a penetration tool. The penetration tool includes a mounting frame, a nozzle assembly connected to the mounting frame, a pressure tank, and a nozzle assembly connected to the nozzle. The connecting pipe between the component and the pressure tank and the pneumatic control box used to control the supply of spray in the pressure tank. The nozzle assembly includes a penetrating nozzle, a developing nozzle and a cleaning nozzle. The pressure tank includes a developer pressure tank and a penetrating agent pressure tank. and a deionized water pressure tank; the cleaning tool includes a base, a cleaning roller brush, and a driving device installed on the lower end of the base and used to drive the cleaning roller brush to move; the penetration and imaging of the present invention adopt an oblique spray method, which overcomes the problem of penetration inspection It is more in line with the penetration inspection technology method and has better imaging effect; the integrated method is adopted to integrate the nozzles together, which reduces the number of installation and disassembly of tools and reduces the collective dose of equipment installation and disassembly personnel.

Description

technical field [0001] The invention relates to the field of nuclear power detection, in particular to a welding seam penetration detection device for a steam generator water chamber partition plate of a nuclear power plant. Background technique [0002] The ICAR manipulator of Westinghouse Corporation of the United States is used for the automatic penetration inspection of the weld seam of the water chamber partition plate of the steam generator. Its products include cleaning devices, penetration devices, and imaging devices, but its structure is complex and the manufacturing cost is high; it uses direct injection to prevent spraying Penetrants and imaging agents are prone to penetration blind spots; penetration and imaging effects are poor; each nozzle is set separately, and each step requires a nozzle replacement, which is extremely inconvenient. Contents of the invention [0003] The object of the present invention is to provide a penetration detection device for weldi...

AI Technical Summary

Problems solved by technology

[0002] The ICAR manipulator of Westinghouse Corporation of the United States is used for the automatic penetration inspection of the weld seam of the water chamber partition plate of the steam generator. Its products include a cleaning device, a penetration device, and an imaging device, but its structure is complex and the manufacturing cost is high; it uses direct injection to prevent spraying Penetrants and imaging agents are prone to penetration blind spots; penetration and imaging effects are poor; each nozzle is set separately, and each step needs to be disassembled and replaced, which is extremely inconvenient

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