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

Abstract

The invention discloses a nuclear power plant steam generator water chamber divider seam penetration detection device which comprises a cleaning tool and a penetration tool. The penetration tool comprises a mounting bracket, a nozzle assembly, a pressure tank, a connection pipe which is connected between the nozzle assembly and the pressure tank, and a pneumatic control box which is used for controlling the supply of the spray in the pressure tank, wherein the nozzle assembly and the pressure tank are connected with the mounting bracket. The nozzle assembly comprises a penetration nozzle, a developing nozzle and a cleaning nozzle. The pressure tank comprises a developer pressure tank, a penetrating agent pressure tank and a deionized water pressure tank. The cleaning tool comprises a base, a cleaning roller brush and a driving device which is arranged on the lower end face of the base and is used for driving the cleaning roller brush to move. According to the invention, the penetration and the development adopt an oblique spray way, which overcomes a penetration inspection blind area, is more consistent with a penetration inspection technical method, and has a better developing effect; an integrated way is used; the nozzles are integrated together; the number of times of tool installation and disassembly is reduced; and the collective dose of installation and disassembly staff of the device is reduced.

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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