节流阀阀芯振动失效分析及结构改进  

Throttle Spool Vibration Failure Analysis and Structure Improvement

作　　者：贾林[1] 艾志久[1] 王彪[2] 邓莉[1] 胡文礼[1] 

机构地区：[1]西南石油大学机电工程学院,成都610500 [2]新疆油田公司陆梁油田作业区,新疆克拉玛依834000

出　　处：《石油矿场机械》2013年第4期29-32,共4页Oil Field Equipment

摘　　要：井控节流阀在高压降的环境下工作,阀芯容易发生振动失效。建立了液体节流阀阀腔的计算域与固体阀芯的计算域,对流场与阀芯进行了流固耦合运算,研究了节流阀阀芯在不同开度条件下的振动位移。楔形阀芯的振动位移远小于针形阀芯,因此使用寿命长。When the well control throttle is used in the high pressure drop of the working environ mere.it is easy to cause the spool work failure. The article established liquid compulational do- main of the throttle valve cavity and solid spool computational domain, put the flow field and spool togelher to calculate the fluid-struclure interaction operations, studied vibration displace- ment of the throttle spool in a different opening conditions. The vibration displacemenl of the wedge-shaped spool is much smaller than the needle-shaped spool, and the service life of 1he wedge-shaped valve is grealer than the needle valve.

关 键 词：节流阀 阀芯 流固耦合 振动 结构改进 

分 类 号：TE921.501[石油与天然气工程—石油机械设备]