智能阀门定位器的气动部件

在流程工业过程强化、功能安全和现场设备资产管理的强劲需求下，控制阀数字解决方案成为近年来控制阀制造厂商研发的重点，市场上数字式阀门定位器不断涌现，其中一些是具有数据处理、数字通信、状态识别和故障智能诊断、在线和离线测试等功能的智能阀门定位器。在计算机技术、电子技术、通信技术、智能预估诊断技术飞速发展的大环境下，智能阀门定位器的固件易于研发和技术提升，但其气动部件性能和表现却成为影响高可用性和安全可靠性的重要因素。本文试对中国市场常见的智能阀门定位器的气动部件进行探讨和细节分析。

The Pneumatic Componems of Intelligent Valve Positioners

Under the strong demand of industrial process intensification, functional safety and on-site equipment asset management, the digital solution of control valves has become the focus of research and development for the valve manufacturers in recent years. Digital positioners are continuously emerging in the market, some of which are intelligent valve positioners with the functions of data processing, digital communication, status recognition and intelligent fault diagnosis as well as online and off-line testing. Under the general environments of rapid development of computer technology, electronic technology, communication technology and intelligent predicted diagnostic technique, it is easy to develop the firmware of the intelligent valve positioners and to improve the related techniques. However, the capability and performance of pneumatic components has become an important factor to influence its high availability and safe reliability. This article attempts to discuss and analyze in detail the pneumatic components of the common intelligent valve positioners in Chinese market.