Laser measurement method, system and equipment for nuclear power station thermal sleeve flange abrasion and medium

Abstract

The invention relates to the technical field of million-kilowatt nuclear power station reactors, in particular to a laser measurement method, system and equipment for nuclear power station thermal sleeve flange abrasion and a medium. The method comprises the following steps of: controlling a laser measurement device to move towards a thermal sleeve in a high-radioactivity nuclear power station reactor pressure vessel until the laser measurement device moves to a preset measurement position; controlling a mobile lifting mechanism to drive a laser to move to a first position and a second position respectively at a preset measurement position, and acquiring first coordinate information of the first position and second coordinate information of the second position measured by the laser; and determining a wear state between the thermal sleeve flange and a pipe seat of an adapter penetration piece according to the first coordinate information and the second coordinate information. Accordingto the invention, accurate measurement of the wear state between the thermal sleeve flange and the adapter penetration piece in a high-dose environment is realized; therefore, personnel are preventedfrom checking in a high-dose environment, the labor cost is saved, the checking time is shortened, and the personal and collective doses are reduced.

Description

technical field [0001] The invention relates to the technical field of mega-kilowatt nuclear power plant reactors, in particular to a laser measurement method, system, equipment and medium for wear of a thermowell flange of a nuclear power plant. Background technique [0002] The reactor pressure vessel is the core component of the mega-kilowatt pressurized water reactor nuclear power plant, and the internal components of the reactor pressure vessel, such as thermowells, thermowell flanges, adapter penetrations, control rod guide rods, etc., are closely related to the operation of the reactor. At present, during the operation of the reactor, the thermowell flange of the reactor pressure vessel may be worn with the adapter penetrating part. In severe cases, the thermowell flange will wear and sink and fall off, resulting in the jamming of the control rod guide rod , affecting the normal shutdown of nuclear power units; and the location is highly radioactive, so personnel cann...

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Problems solved by technology

[0004] Aiming at the problems in the prior art of manual inspection of the wear state of the thermowell flange and the adapter penetrating part, the dose is large, the manpower is too much, and the inspection time is long, the invention provides a laser measurement method for the wear of the thermowell flange of a nuclear power plant , systems, equipment and media

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