发电厂汽轮机DEH系统的故障分析

Fault Analysis of Steam Turbine DEH System in Power Plant

基于对汽轮机DEH控制系统的工作原理与组成的分析,针对机组在AGC方式下加负荷时的DEH系统关闭调门、汽泵出口处电动门开反馈信号的跳变以及低负荷时汽泵的跳闸现象等DEH控制系统常见故障,提出相应的解决措施。

Based on the analysis of the working principle and composition of the DEH control system of steam turbine,the DEH system when the unit is loaded under the AGC mode is closed and adjusted. The common faults of the DEH control system such as the tripping of the feedback signal of the electric door opening at the outlet of the steam pump and the tripping phenomenon of the steam pump at low load are put forward and the corresponding solutions are put forward.