核电厂埋地管的综合监测及评估

Comprehensive Inspection and Evaluation of Buried Pipes in Nuclear Power Plant

针对核电厂埋地管普遍存在的防腐层破损、腐蚀、泄漏等失效情况,本文调研了国际上相对完备的核电厂埋地管降质管理技术体系,归纳总结了核电厂埋地管老化管理方面的3项关键技术,包括埋地管腐蚀风险分级管理技术、埋地管检测技术和埋地管老化状态评价技术,从预防、检测、评估等角度进行埋地管综合管理,可为国内核电厂建立埋地管监测及评估技术体系提供借鉴。

In view of the damage,corrosion and leakage of the anticorrosive coating,this paper investigated the international technical system for the quality reduction of buried pipes in nuclear power plants,summarizes three key technologies in the management of buried pipe aging in nuclear power plants,including buried pipe corrosion risk grading management technology,buried pipe detection technology and buried pipe aging status evaluation technology,so as to carry out comprehensive management from the perspectives of prevention,detec⁃tion and evaluation,which can provide reference for the establishment of the technical system of buried ground supervision inspection and evaluation for domestic nuclear power plants.