压力容器水压试验压力及其利弊分析  

Pressure for Hydrostatic Test of Pressure Vessel and Its Advantages and Disadvantages

作　　者：张敬才[1] 胡幼明[1] 

机构地区：[1]中国核动力研究设计院核反应堆系统设计技术重点实验室,成都610213

出　　处：《核动力工程》2016年第4期34-38,共5页Nuclear Power Engineering

摘　　要：对现行压力容器规范规定的压力容器水压试验的压力、利弊等进行讨论,指出水压试验压力约为塑性失稳压力的40%～45%,其应力准则允许的压力约为塑性失稳力的50%～75%;水压试验是压力容器检漏、强度验证的一种实用有效的试验方法和检查技术;水压试验可以改善和提高压力容器承载能力,减小破坏可能性;在役水压试验可以确定可能存在的最大缺陷或最大承受的压力,为后续安全运行和分析提供依据和数据,但压力不宜超过首次强度水压试验压力;对超载和温态预应力水压试验以及水压试验有害作用应进一步开展科研。Hydrostatic test pressure and its advantages and disadvantages have been discussed in detail. The paper indicated that the hydrostatic test pressure is about 40%-45% of the plastic instability pressure; Hydrostatic test stress criteria allowable pressure is about 50%-75% of the plastic instability pressure; Hydrostatic test may improve and increase the loading capability of the pressure vessel and decrease the failure possibility by hydrostatic test mechanism; Hydrostatic test is the useful and efficiency examination method and inspection technology for the leakage and strength of the pressure vessels; Periodic hydrostatic test during operation may establish the maximum defect in the pressure vessel or the maximum loading so that to provide basis and data for continuous operation, but the pressure of the periodic hydrostatic test does not exceed the first hydrostatic test pressure. The overpressure test and the warm pre-stressing test and harmful effects of pressure test need to be researched in depth.

关 键 词：压力容器 水压试验压力 水压试验利弊 

分 类 号：TL351.6[核科学技术—核技术及应用]