压力容器2024，Vol.41Issue(4)：43-52,10.DOI:10.3969/j.issn.1001-4837.2024.04.006
不同补氮程度油品罐通过呼吸阀排放油气危险性研究
Study on the hazard of oil and gas emissions from oils tank with different nitrogen supplement levels through breathing valves
摘要
Abstract
With the increasing construction volume of large oil storage tanks,there is still insufficient research on the explosive hazards caused by the gas phase oil and gas concentration formed by internal floating roof tanks under different nitrogen replenishment levels and the discharge through breathing valves.The oil and gas concentration in the gas-phase space formed under different nitrogen supplementation levels was studied using Fluent simulation,and the explosion hazard of breathing valve emissions at different wind speeds was studied.The results show that installing monitoring equipment for breathing valve emissions at the bottom of the tank cannot effectively monitor the hazard;The external wind speed forms a vortex at the roof of the tank,and the squeezing effect is obvious near the breathing valve,which accelerates the diffusion and dilution of the oil and gas discharged from the breathing valve;When there is no external wind interference,the monitoring equipment can be installed 0.1 m away from the center of the tank roof to quickly monitor the explosion hazard of oil and gas concentration of 5%～100%in the gas phase space discharged through the breathing valve;After the monitoring equipment outside and inside the tank detects hazardous concentrations,comprehensive measures should be taken to prevent the formation of hazardous oil and gas concentrations in the gasphase space,prevent the formation of discharge pressure in the gas-phase space,and prevent the discharge of oil and gas of hazardous concentrations.关键词
油品储罐/呼吸阀/补氮程度/气相空间/监测设备Key words
oils tank/breathing valve/nitrogen supplementation level/gas phase space/monitoring equipment分类
机械制造引用本文复制引用
张东许,李佳航,多英全,吴宗之..不同补氮程度油品罐通过呼吸阀排放油气危险性研究[J].压力容器,2024,41(4):43-52,10.基金项目
国家重点研发计划项目"化工园区重大风险智能感知与预警技术及规范"(2021YFC3001200) （2021YFC3001200）
