Intelligent requirements have made petroleum and petrochemical enterprises invest more and more in automation and control equipment.Production process control requires a lot of control valves and its predictive maintenance to realize process strengthening,functional safety and energy efficiency management.Control valve is of great importance as terminal execution element of control loop.Meanwhile,its technology is weak for a long time.Control valve manufacturing is developing quickly with rapid development of process control in recent years.The main trend of the development is standardization,modularization,networked,high integration,high performance,high intelligence,low-cost to fully achieve the requirement for petroleum and petrochemical process control.%智能化的要求使石油石化企业加大了自动化控制设备的投入,生产过程控制需要大量控制阀及其预测性维护,以实现过程强化、功能安全和能效管理.控制阀作为控制回路的终端执行元件凸显重要,同时也是技术比较薄弱的短板.近年来,控制阀制造业随过程控制的快速发展而发展,体现在标准化、模块化、网络化,高集成、高性能、高智能,低成本等方面,以全面满足石油石化过程控制需求.
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