V形调节球阀阀芯结构与等百分比流量特性分析  

Analysis of V-ball Valve's Disc Structure and Equal Percentage Flow Characteristic

作　　者：张希恒[1] 孙丰位[1] 俞树荣[1] 吴佳宝[1] 

机构地区：[1]兰州理工大学

出　　处：《化工机械》2012年第5期598-601,共4页Chemical Engineering & Machinery

基　　金：甘肃省科技支撑计划资助项目(1104GKCA052)

摘　　要：通过理论分析V形球阀的流量与阀座处流通面积的关系,导出了流通面积、阀芯V形切口和球冠半径的近似计算式。利用等百分比流量特性优化阀芯V形切口和球冠半径,使V形球阀的设计流量特性与等百分比流量特性趋于一致,减小了流量系数误差,并给出了一个优化设计实例。Through analyzing the relationship between flow rate and flow area at V-ball valve seat, the approx- imate calculation formula for the ball valve＇ s flow area and the disc＇ s V-cut and crown radius were derived. Optimizing the V-cut and crown radius with equal percentage flow characteristic shows that design flow charac- teristic tends to be consistency with equal percentage flow characteristic and to have the error of flow coefficient reduced, and an optimal design was given as an example simultaneously.

关 键 词：V形球阀 阀芯结构 等百分比流量特性 流量系数 

分 类 号：TQ055.81[化学工程]