SAFETY AND ECONOMIC BEHAVIOR OF SWITCHING THE GOVERNING VALVE FROM SINGLE VALVE CONTROL TO SEQUENCIAL VALVE CONTROL IN OPERATION OF 600 MW STEAM TURBINE

ZHAO Yong-lin; QIN Zhan-feng; FAN Pei-hua; SHI Xin-gang(Liaocheng Power Plant

doi:10.19666/j.rlfd.2007.05.015

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SAFETY AND ECONOMIC BEHAVIOR OF SWITCHING THE GOVERNING VALVE FROM SINGLE VALVE CONTROL TO SEQUENCIAL VALVE CONTROL IN OPERATION OF 600 MW STEAM TURBINE

更新时间：2025-09-28

- SAFETY AND ECONOMIC BEHAVIOR OF SWITCHING THE GOVERNING VALVE FROM SINGLE VALVE CONTROL TO SEQUENCIAL VALVE CONTROL IN OPERATION OF 600 MW STEAM TURBINE
- Thermal Power Generation Issue 5, Pages: 52-55(2007)
- 作者机构：
  
  聊城发电厂
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2007.05.015
  CLC： TK263
- Published：2007
- 稿件说明：
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ZHAO Yong-lin, QIN Zhan-feng, FAN Pei-hua, et al. SAFETY AND ECONOMIC BEHAVIOR OF SWITCHING THE GOVERNING VALVE FROM SINGLE VALVE CONTROL TO SEQUENCIAL VALVE CONTROL IN OPERATION OF 600 MW STEAM TURBINE[J]. Thermal power generation, 2007, (5): 52-55.
DOI：

ZHAO Yong-lin, QIN Zhan-feng, FAN Pei-hua, et al. SAFETY AND ECONOMIC BEHAVIOR OF SWITCHING THE GOVERNING VALVE FROM SINGLE VALVE CONTROL TO SEQUENCIAL VALVE CONTROL IN OPERATION OF 600 MW STEAM TURBINE[J]. Thermal power generation, 2007, (5): 52-55. DOI： 10.19666/j.rlfd.2007.05.015.

摘要

聊城电厂2×600 MW机组一直存在调节阀无法由单阀切换为顺序阀运行的问题

对机组的效率影响较大。为此

提出了优化调节阀开启顺序和调整阀门重叠度的改进方案。调节阀控制方式改为对角开启顺序阀运行后

保障了机组安全稳定运行

经济效益显著。

Abstract

The problem of governing valves for two 600 MW steam turbines continuously existing in operation is that the governing valve can't be switched from single valve control to sequencial valve control

having comparatively large influence upon the efficiency of units.For this

an improvement scheme for optimizing the open sequence of the governing valves and for adjusting the overlap degree of said valves has been put forward.After changing the control mode of said governing valves to sequencial valve control which can be diagonally opened

safe and stable operation of the units can be ensured

obtaining remarkable economic benefits.

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