常见智能阀门定位器的基本原理及对比分析(上)  

Basic Principle and Contrastive Analysis of General Intelligent Valve Positioners (Section One)

作　　者：韩剑 HAN Jian(Shaanxi Huabin Zheng Kai New Energy Technology Co.,Ltd.)

机构地区：[1]陕西华彬正开新能源科技有限公司

出　　处：《化工自动化及仪表》2019年第10期789-797,共9页Control and Instruments in Chemical Industry

摘　　要：在化工生产过程中,智能阀门定位器作为气动控制阀的主要附件,在提高控制阀的运行品质等方面发挥着重要的作用。笔者对定位器的概念、气动元件结构、工作原理以及性能参数等指标进行了说明和对比,有助于在化工生产中正确选用和使用阀门定位器。In chemical production, the intelligent valve positioner, acting as the main part of pneumatic control valves, plays an important role in improving the running quality of control valves. In this paper, the valve positioners’ concept, pneumatic component structure, working principle and performance parameters were described and compared to benefit both correct selection and use of them in the chemical production.

关 键 词：阀门定位器 I/P转换器 气动放大器 压电阀 

分 类 号：TH83[机械工程—仪器科学与技术]