聚乙烯阀门密封及扭转试验机控制系统设计  

Design of Control System on Polyethylene Valve Sealing and Torsion Testing Machine

作　　者：刘艳军[1] 韩志凌[2,3] 赵海贤[1] 

机构地区：[1]承德石油高等专科学校机械工程系,河北承德067000 [2]承德石油高等专科学校电气与电子工程系,河北承德067000 [3]河北省仪器仪表工程技术研究中心,河北承德067000

出　　处：《承德石油高等专科学校学报》2014年第3期19-23,共5页Journal of Chengde Petroleum College

基　　金：河北省科技计划项目(燃气用埋地聚乙烯阀门密封及扭转试验机的研发):13211715

摘　　要：聚乙烯阀门密封及扭转试验机用来检测阀门的密封性及开闭阀门时的操作扭矩。在分析了试验机组成结构和工作原理的基础上,提出基于PLC+HMI的控制方案。介绍了控制系统组成、PLC选型、I/O地址定义、控制流程及程序设计。利用PLC丰富的软硬件资源和HMI良好的人机交互功能实现对试验机的精确可靠控制。现场使用证明,试验机的控制系统运行可靠,操作方便,能满足用户使用要求。Polyethylene valve testing machine is used to detect the sealing of the valve and operatingtorque of switching valve. On the basis of the analysis of the testing machine structure and workingprinciple, the paper puts forward the control scheme based on PLC ＋ HMI. The composition of con-trol system, the selection of PLC, definition of I/0 address, control flow and program design are alsointroduced. The paper realizes precise and reliable control of testing machine with PLC rich softwareand hardware resources and HMI a good human-computer interaction function. Field applicationshows that the control system of testing machine is easy to operate and the movement is reliable, andcan meet the demands of the user.

关 键 词：聚乙烯阀门试验机 控制系统 

分 类 号：TH87[机械工程—仪器科学与技术]