摘要
前置隔离阀是介质自驱动内置式截止阀,利用工艺管路介质能量作为阀门驱动源。为探究介质自驱动内置式结构对阀门流通能力的影响,采用流体动力学对前置隔离阀进行数值分析。采用正交分析法对影响阀门流通能力的主要阀门行程、阀瓣形状、活塞缸径,确定各因素主次地位,及阀门最优结构组合,结合阀门的性能要求,对内置式结构对阀门的流通能力影响分析。分析结果表明,对阀门的流通能力因素影响主次顺序是阀门行程、阀瓣形状、活塞缸径,其中阀门行程取140 mm、阀瓣形状设计为内凹型及活塞缸直径取376 mm时前置隔离阀的流通能力最优;驱动装置内置式结构对前置隔离阀的流通能力影响较小,可通过优化流道结构(阀门行程、阀瓣形状、活塞缸径)降低介质自驱动装置内置于阀腔对阀门流通特性的影响。
The pre-isolation valve is a medium self-driven built-in globe valve,using process pipeline medium energy as the valve drive source.In order to explore the influence of the dielectric self-driven built-in structure on the flow capacity of the valve,the numerical simulation analysis of the pre-isolation valve was carried out by using fluid dynamics.The main valve stroke,disc shape and piston cylinder diameter that affect the flow capacity of the valve were determined by orthogonal analysis method,and the primary and secondary positions of each factor and the optimal structure combination of the valve were determined.Combined with the performance requirements of the valve,the influence of the built-in structure on the flow capacity of the valve is analyzed.The analysis results show that the main and secondary factors affecting the flow capacity of the valve are valve stroke,disc shape and piston cylinder diameter.The flow capacity of the front isolation valve is the best when the valve stroke is 140 mm,the disc shape is concave and the piston cylinder diameter is 376 mm.The built-in structure of the drive device has little influence on the flow capacity of the pre-isolation valve.The influence of the dielectric self-drive device installed in the valve chamber on the flow characteristics of the valve can be reduced by optimizing the flow path structure(valve stroke,disc shape,piston cylinder diameter).
作者
陈开展
王志敏
陈时健
苏丽华
臧家林
朱京梅
CHEN Kai-zhan;WANG Zhi-min;CHEN Shi-jian;SU Li-hua;ZANG Jia-lin;ZHU Jing-mei(SUFA Technology Industry Co.,Ltd.,Jiangsu 215129,Suzhou,China;Nuclear Power Operation Research(Shanghai)Co.,Ltd.,Shanghai 202150,China;China Nuclear Power Engineering Co.,Ltd.,Beijing 100840,China)
出处
《阀门》
2023年第5期583-587,共5页
VALVE MAGAZINE
关键词
介质自驱动装置
流量系数Kv
数值模拟
正交分析法
dielectric self-drive device
flow coefficient K v
numerical simulation
orthogonal analysis
