压力容器2025，Vol.42Issue(11)：50-56,7.DOI:10.3969/j.issn.1001-4837.2025.11.006
两相流超压泄放尺寸计算方法探析
Analysis of overpressure relief size calculation method on two-phase flow
摘要
Abstract
In process industries such as chemical,petroleum,and energy sectors,safety valves and rupture disc devices are crucial safety accessories for pressure-bearing equipment.By discharging overpressure,these devices ensure the safe operation of such equipment.When the relief medium is a two-phase flow,the relief process involves complex physical phenomena including flashing,condensation,and interphase slip,which poses significant challenges to the sizing calculation of relief devices.This paper systematically reviews the theoretical fundamentals of calculation models for two-phase flow relief.It focuses on analyzing and comparing the principles,applicable conditions,and limitations of two commonly adopted engineering methods:The Homogeneous Direct Integration(HDI)method and the Omega method.The paper further expands the scope of the literature review by introducing discussions on cutting-edge research directions such as non-equilibrium models and CFD-assisted design.Through a systematic comparison of different methods,it proposes selection guidelines tailored to diverse engineering scenarios and delves into the core challenge of determining the two-phase flow discharge coefficient.Finally,based on a comparative analysis of the domestic and international research status as well as relevant standards and specifications,this paper prospects future research directions,aiming to provide engineering technicians with more systematic and forward-looking theoretical guidance and practical references.关键词
两相流/安全阀/爆破片/超压泄放/计算模型/Omega法/HDI法Key words
two-phase flow/safety valve/rupture disc/overpressure relief/calculation model/Omega method/HDI method分类
机械制造引用本文复制引用
吴全龙,史斐菲,徐军,刘铎..两相流超压泄放尺寸计算方法探析[J].压力容器,2025,42(11):50-56,7.基金项目
国家市场监督管理总局重点实验室(爆破片装置安全技术)开放课题项目(2025BPK01) （爆破片装置安全技术）
