电液调节系统原理及应用

电液调节系统原理及应用

葸国隆

本文就汽轮机数字电液控制系统的组成、控制功能及其实现做了说明，并介绍常见项目实施过程出现的部分故障及处理方法；同时对EH油系统、电液伺服阀、ETS系统也做了介绍。

关键词：数字电液汽轮机转速电液伺服阀汽轮机保护

Abstract

This text did the introduction to the Digital Electric Hydraulic steam turbine Control System, control function and implementation, and introduced the error and fault appears in the common item implementation process and the method;Also did introduction to the EH oil system, the electricity liquid servovalve and ETS system at the same time.

Keywords: DEH STEAM TURBINE SPEED SERVOV ALVE ETS

前言...................................................................................................................................................... ３

第一章DEH概述........................................................................................................................... ４

1.1 DEH的发展经历 .................................................................................................................. ４

1.1.1 MHC .................................................................................................................................................. ４

1.1.2 EHC ................................................................................................................................................... ４

1.1.3 DEH ................................................................................................................................................... ５1.2 DEH系统的组成 .................................................................................................................. ６1.3 DEH的控制方案 .................................................................................................................. ８1.4 ETS ........................................................................................................................................ ９1.5 TSI ...................................................................................................................................... １２第二章液压执行机构 ................................................................................................................ １３

2.1 DEH的硬件组成各部分功能 .......................................................................................... １３

2.1.1 DEH常用的电液转换器 .............................................................................................................. １４

2.1.2 LVDT ............................................................................................................................................. １５第三章油系统 ............................................................................................................................ １６

3.1 低压透平油系统................................................................................................................ １６3.2 供油装置的主要部件........................................................................................................ １７3.3 自容式电液执行器............................................................................................................ １８3.4 汽轮机的自动保护系统.................................................................................................... １９第四章DEH调试....................................................................................................................... ２０

4.1 LVDT ................................................................................................................................. ２０

4.1.1 LVDT的安装调试 ........................................................................................................................ ２０4.2 拉阀试验............................................................................................................................ ２２4.3 汽轮机冲转........................................................................................................................ ２４总结.................................................................................................................................................. ２６