燃气用埋地聚乙烯阀门密封及扭转试验机的研制  

Development of Seal & Torsion Testing Machine of Buried PE Valve

作　　者：韩志凌[1,2] 刘艳军[1] 赵海贤[1] 王新华 

机构地区：[1]承德石油高等专科学校,河北承德067000 [2]河北省仪器仪表工程技术研究中心,河北承德067000 [3]承德市精密试验机有限公司,河北承德067000

出　　处：《现代塑料加工应用》2014年第6期53-55,共3页Modern Plastics Processing and Applications

基　　金：河北省科技计划项目(项目号:13211715)资助

摘　　要：根据GB 15558.3—2008规定的阀门密封性和扭矩试验要求,设计了阀门密封及扭转试验机。为解决试验过程中轴向力对密封性能影响的难题和提高密封性能检测的准确性,用新型高弹性密封套对阀门进行密封,并通过多种方法检测阀体是否存在泄漏;采用PLC＋HMI控制系统,实现阀门检测的自动化,并可保存扭矩曲线,提高检测效率。现场测试结果表明,该试验机能够满足DN63-160等阀门在线检测要求。Seal ＆ torsion testing machine of buried polyethylene valve were developed according to the requirements of sealing and torsion of GB 15558.3-2008. In order to solve the problem of axial force＇s influence on the sealing function and improve the accuracy of detection of sealing function, newly seal sleeves with high elasticity were used for the valve＇s seal, and several approaches were used to detect the leakage of valve. Using the control system of PLC and HMI, the automation of valve detection was achieved, and torque curve could be stored, thus the testing efficiency was improved. The results of field testing prove that the testing machine can be utilized for on-line detection, and the detection type of valve can meet the demands of DN63-160.

关 键 词：聚乙烯 阀门 密封 扭转 试验机 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]