压力容器2025，Vol.42Issue(2)：23-28,6.DOI:10.3969/j.issn.1001-4837.2025.02.003
外部火灾环境液体容器泄放设计中湿润面积计算探讨
Discussion on wetted surface area calculation of liquid vessel venting design under external fire environment
摘要
Abstract
The determination of wetted surface area of vessel is the first step to design the overpressure venting of liquid(liquified gas is included)vessels under external fire environment according to the API 521-2020 standard.It has been found by investigations and research that the calculations of the wetted surface area are prone to errors,and the systematical description of the calculations has not been given in existing literatures.In this paper,by using the combination methods of investigation analysis and induction and summary,the different risk conditions and geometric models for liquid vessels under external fire environments have been built.Formulas for calculating the effective liquid height of liquid vessels in spherical tanks,horizontal containers(hemispherical heads,flat heads,elliptical heads),support type vertical containers(hemispherical heads,flat heads,elliptical heads),skirt type vertical containers,tower equipment were analyzed.The calculations of the wetted surface area of different liquid vessels under external fire environments are given bases on the effective liquid height.The research can provide reference for the overpressure venting design for liquid vessels with external fire environments.关键词
液体容器/外部火灾/超压泄放/湿润面积Key words
liquid vessel/external fire/overpressure venting/wetted surface area分类
机械工程引用本文复制引用
韩冰,戴行涛,闫兴清,李岳,喻健良..外部火灾环境液体容器泄放设计中湿润面积计算探讨[J].压力容器,2025,42(2):23-28,6.基金项目
国家市场监管重点实验室(气瓶安全技术)开放课题项目(2023K02)"储氢容器/气瓶安全泄放特性研究" （气瓶安全技术）
