摘要
将压缩空气泡沫系统引入现有储罐消防系统,针对10×104m3浮顶储罐设计了浮盘边缘式泡沫灭火系统。运用AMESim仿真软件建立仿真模型,验证了系统工作的可行性,并对泡沫溶液比例混合工作过程与气液比例混合工作过程进行了详细的研究。分析了系统泡沫出口管线直径大小与气体管线旁路节流阀流量系数对气液混合比与气液混合处的压力的影响。结果表明,旁路节流阀开口对整个系统压力与流量有重要影响,不同泡沫输送管线对应不同节流阀调节范围,并确定了在不用设定混合比例下节流阀的调节方式,为压缩空气泡沫系统在储罐上的应用与优化提供了重要的依据。
Combining the compressed air foam system with the ex-isting storage tank fire fighting system,a float-edge foam fire ex-tinguishing system was designed for a 10×104 m3 floating roof tank.A simulation model was established using AMESim simulation software,and the feasibility of the system work was verified.A de-tailed study was conducted on the ratio mixing process of foam so-lution and the mixing process of gas-liquid ratio.The influences of the diameter of the system foam outlet pipeline and the flow coeffi-cient of the gas pipeline bypass throttle valve on the gas-liquid mix-ture ratio and the pressure of the gas-liquid mixture were analyzed.The results showed that the bypass throttle valve opening has an ef-fect on the pressure and flow of the entire system;different foam delivery pipelines correspond to different throttle adjustment rang-es;the adjustment method of the throttle valve without setting the mixing ratio is determined,which provides an important basis for the application and optimization of the compressed air foam system on the storage tank.
作者
卢娜
张行
董绍华
张仕民
崔灿
LU Na;ZHANG Hang;DONG Shao-hua;ZHANG Shi-min;CUI Can(Dept.of School of Mechanical and Storage Engineering,China University of Petroleum-Beijing,Beijing 102249,China;Dept.of Oil and Gas Pipeline Research Center,China University of Petroleum-Beijing,Beijing 102249,China)
出处
《消防科学与技术》
CAS
北大核心
2018年第8期1111-1113,1117,共4页
Fire Science and Technology
基金
国家重点研发计划项目"国家石油及天然气储备库安全保障技术与装备研发"(2017YFC0805800)
