变流量水系统压差旁通控制系统设计
Design of pressure difference bypass control system for variable flow rate water systems
摘要：
介绍了压差旁通控制系统的作用、系统组成、作用原理、安装位置以及相关设备的选择，分析了系统存在的问题及其原因，并介绍了确保该控制系统长期良好运转的主要措施。
关键词：调节阀 电动执行器 压差控制器 变压器
Abstract：
Presents the function, constitution, operating principle, installation position and related equipment selection, analyses the existed problems and their causes, and provides the guarantee measures to sound operation in long period.
Keywords:regulating valve, electric actuator, pressure-difference controller, transformer