真空绝热深冷压力容器安全泄放量计算探讨  

Research on calculation of safety relief capacity for vacuum insulated cryogenic pressure vessels

作　　者：史斐菲 吴全龙 李景良 SHI Feifei;WU Quanlong;LI Jingliang(Shanghai Huali Safety Devices Co.,Ltd.,Shanghai 201108,China;CNNP Nuclear Power Operstions Management Co.,Ltd.,Haiyan 314300,China)

机构地区：[1]上海华理安全装备有限公司,上海201108 [2]中核核电运行管理有限公司,浙江海盐314300

出　　处：《压力容器》2021年第1期61-67,共7页Pressure Vessel Technology

基　　金：国家重点研发计划项目“移动式承压类特种设备风险防控与治理关键技术研究”(2017YFC0805600)。

摘　　要：确定安全泄放量是真空绝热深冷压力容器设计的一项重要内容,计算时应根据容器可能存在的不同超压失效工况并判断介质是否处于临界相态,求出对应的吸热量。通过对GB/T 18442.6—2019附录A、NB/T 47058—2017和NB/T 47059—2017附录C关于真空绝热深冷压力容器安全泄放量计算公式进行推导分析,探讨公式适用条件,为工程设计和标准编制提供参考。Determination of safety relief capacity is an important content in vacuum insulated cryogenic pressure vessel design.The corresponding heat absorption must be calculated according to the different overpressure failure conditions and the judgment whether the medium is in critical phase state.This paper conducted derivation and analysis of the calculation formulas in Annex A to GB/T 18442.6—2019,Annex C to NB/T 47058—2017 and Annex C to NB/T 47059—2017 for calculation of safety relief capacity of vacuum insulated cryogenic pressure vessels and investigated applicable conditions of the formula so as to provide a reference for engineering design and standard development.

关 键 词：深冷压力容器 安全泄放量 失效工况 吸热量 

分 类 号：TH49[机械工程—机械制造及自动化] T-65[一般工业技术]