PROPOSALS TO DEAL WITH ABNORMAL CONTROL OF CCS CAUSED BY SERVO VALVES IN A 300 MW UNIT

HUANG Wei-jian1; HE Guan-sheng2; ZHU Ye-tian2; HUANG Wei21.Electric Power Research Institute of Guangdong Power Grid Company

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PROPOSALS TO DEAL WITH ABNORMAL CONTROL OF CCS CAUSED BY SERVO VALVES IN A 300 MW UNIT

更新时间：2025-09-28

- PROPOSALS TO DEAL WITH ABNORMAL CONTROL OF CCS CAUSED BY SERVO VALVES IN A 300 MW UNIT
- Thermal Power Generation Vol. 38, Issue 5, Pages: 59-61(2009)
- 作者机构：
  
  1. 广东电力科学研究院
  2. 茂名热电厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK228
- Published：2009
- 稿件说明：
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HUANG Wei-jian1, HE Guan-sheng2, ZHU Ye-tian2, et al. PROPOSALS TO DEAL WITH ABNORMAL CONTROL OF CCS CAUSED BY SERVO VALVES IN A 300 MW UNIT[J]. Thermal power generation, 2009, 38(5): 59-61.
DOI：

HUANG Wei-jian1, HE Guan-sheng2, ZHU Ye-tian2, et al. PROPOSALS TO DEAL WITH ABNORMAL CONTROL OF CCS CAUSED BY SERVO VALVES IN A 300 MW UNIT[J]. Thermal power generation, 2009, 38(5): 59-61. DOI：

摘要

针对某电厂300MW机组一次检修后锅炉燃料流量异常波动的现象

进行了故障原因可能性的分析、故障点的现场检查和消除

明确故障因电液控制(EH)油劣化造成调节阀GV1～GV4动作迟缓或失控引起。对此

提出了保证和提高EH油品质的多项措施。

Abstract

To deal with the problem that the boiler fuel flow was fluctuating after normal unit inspection in a power plant

possible cause was analyzed and on-site checking and trouble elimination were conducted.It was clearly defined that the flow fluctuation was caused by slow down movement or control failure of GV1

GV2

GV3

GV4 due to EH oil aging.A number of countermeasures are proposed to ensure and improve the oil quality of EH.

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