福清核电厂1、2号机组安全壳整体泄漏率试验充压和降压速率优化的分析和研究

Optimization Analysis and Study for Pressurization and Depressurization Gradient of Fuqing 1&2 Overall Containment Leakage Test

福清核电厂1、2号机组安全壳整体泄漏率试验在换料大修期间进行并作为大修关键路径的主线工作,而安全壳整体泄漏率试验的充压和降压速率是影响主线工作的重要因素。为提高机组的可利用率和经济性,基于法规和标准的要求,结合同类型机组的经验反馈对安全壳整体泄漏率试验进行优化,分析和研究试验中充压和降压速率提升的可行性。

Considered as a mainline work, the Fuqing 1＆2 overall containment leakage test takes place during the refueling outage, meanwhile the pressurization and depressurization gradient are important factors related to this test. In order to increase the availability and economy of these units, the overall containment leakage test is optimized as required by relevant regulations and standards and the feedback of other NPPs, the analysis and study are focus on the feasibility of increasing the pressurization and depressurization gradient.