压力平衡式旋塞阀的阀体结构  

Structure of pressure balanced plug valve

作　　者：杨胜龙 张晓松 刘沛鑑 杜华东 

机构地区：[1]四川精控阀门制造有限公司 [2]中国石油西部管道分公司

出　　处：《油气储运》2016年第3期321-326,共6页Oil & Gas Storage and Transportation

摘　　要：为了使旋塞阀阀体既能满足强度要求,又能满足客户指定射线探伤的要求,对不同结构形式的阀体进行了分析。结合API 6D、API 599、ASME B16.34等阀门设计标准,进行了不同结构形式旋塞阀阀体零件的三维建模,并对各种模型进行具有相同边界条件和约束条件的有限元分析,从中找出满足要求的阀体结构。分析表明:球形结构的旋塞阀阀体在很好地满足阀门使用强度要求的同时,避免了加筋结构旋塞阀阀体不能进行射线探伤操作、探伤结果判定不准确等缺点,对阀体零件的内部质量控制具有极为明显的优势。To make the pressure balanced plug valve meet the required strength and also the necessary RT（Radiographic Test） specified by customers, different structural types of valves are analyzed. Based on the valve design standards such as API 6D, API 599 and ASME B16.34, three-dimensional models of plug valves in different structural types are established. FEA（Finite Element Analysis） is performed on different models under the same boundary conditions and constraint conditions, in order to find the qualified valve structure. The analysis result shows that the plug valve with spherical structure can fulfill the requirements of strength, without the disadvantages of plug valve with stiffened structure such as unavailable RT operation and inaccurate result of RT. This kind of valve has significant advantages on internal quality control of structure components.

关 键 词：压力平衡式旋塞阀 球形阀体结构 有限元分析 射线探伤 质量控制 

分 类 号：TE974[石油与天然气工程—石油机械设备]