大亚湾核电站闸阀锅炉效应状况及其改进  

Status of Boiler Effect for Safety-Related Gate Valves and Its Improvement

作　　者：王安[1] 向文元[1] 李书周[1] 

机构地区：[1]大亚湾核电运营管理有限责任公司,广东深圳518124

出　　处：《核动力工程》2006年第4期64-67,共4页Nuclear Power Engineering

摘　　要：基于国际上相关的闸阀锅炉效应的试验和研究结果,利用甄别方法及概率安全分析(PSA)方法对大亚湾/岭澳核电站每个机组的闸阀锅炉效应进行了分析。结果表明,大亚湾/岭澳核电站每个机组的闸阀RIS063/064VP及PTR022VB需要改进。为了防止阀腔超压,改进的措施分别为：RIS063/064VP增加带有双向逆止阀的的旁路,PTR022VB则在高压侧的闸板上钻孔。Based on international experimental and research results for Boiler Effect, this paper describes the analysis principle and method for Daya Bay ＆ Ling＇ao nuclear power stations to confirm which gate valves are affected by boiler effect. Further analysis with PSA and detailed safety functions is to define finally RIS063/064VP and PTR022VB need to be modified. The solution avoiding Boiler Effect for RIS063/064VP is adding a bypass line with double-directional check valve, and drilling a hole on the upstream disk of PTR022VB is adopted.

关 键 词：核电厂 闸阀 锅炉效应 

分 类 号：TL364.2[核科学技术—核技术及应用]