聚乙烯醇装置控制阀的设计与应用

Design and application of control valve in PVA equipment

控制阀是化工类装置实现生产过程自动化的重要设备,一台满意的控制阀,不仅能使自控系统稳定运行,减轻操作人员的劳动强度,而且能有效减少装置运行参数的偏差,提高经济性。文章介绍了各类控制阀在聚乙烯醇装置中的设计选型及应用,包括阀门形式、材质,阀门特性、口径和执行机构的选择等,充分考虑了可行性、经济性,解决了实际生产中存在的问题。

Control valve is an important facility in chemical equipment to achieve process automation.A good control valve can not only make the control system run stably,but also reduce the labor intensity and effectively reduce the operating error.As a result,economic benefit is improved.This article introduces the selection and application of various kinds of control valve in PVA equipment,including selection of valve type,construction material,valve feature,size and actuator.Feasibility and economy are fully considered during selection.