FREQUENCY CONVERSION RETROFIT OF CONDENSATE PUMP FOR 330 MW UNIT AND SYSTEM OPEATION OPTIMIZATION THEREOF

SHENG Xibing; LI Zhenqiang; DU Huazhong; WAGN Jingkuan; ZHANG Jing'e Guodian Heze Power Plant

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FREQUENCY CONVERSION RETROFIT OF CONDENSATE PUMP FOR 330 MW UNIT AND SYSTEM OPEATION OPTIMIZATION THEREOF

Thermal Power Generation Vol. 40, Issue 9, Pages: 86-88(2011)

更新时间：2025-09-28

- FREQUENCY CONVERSION RETROFIT OF CONDENSATE PUMP FOR 330 MW UNIT AND SYSTEM OPEATION OPTIMIZATION THEREOF
- 作者机构：
  
  国电菏泽发电厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM921.51
- Published：2011
- 稿件说明：
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SHENG Xibing, LI Zhenqiang, DU Huazhong, et al. FREQUENCY CONVERSION RETROFIT OF CONDENSATE PUMP FOR 330 MW UNIT AND SYSTEM OPEATION OPTIMIZATION THEREOF[J]. Thermal Power Generation, 2011, 40(9): 86-88.
DOI：

SHENG Xibing, LI Zhenqiang, DU Huazhong, et al. FREQUENCY CONVERSION RETROFIT OF CONDENSATE PUMP FOR 330 MW UNIT AND SYSTEM OPEATION OPTIMIZATION THEREOF[J]. Thermal Power Generation, 2011, 40(9): 86-88. DOI：

摘要

国电菏泽电厂三期330 MW机组凝结水泵(凝泵)实施变频改造后

为了进一步降低凝结水管道的压力损失

机组正常运行时全开除氧器水位主、副调节阀及其旁路电动阀。为了满足汽动给水泵(汽泵)密封水压力的需要

适当开启汽泵密封水旁路阀

同时对凝结水系统控制逻辑进行了优化。优化后凝泵在变频运行方式下节电效果明显

机组安全性得到进一步提高。

Abstract

After implementation of frequency conversion retrofit for condensate pumps of 330 MW untis in the third-phase poject of Guodian Heze Power Plant

in order to further reduce the pressure loss in the condensate pipeline

the main and auxiliary regulating valves for water-level in the deaerator as well as its bypass motor-operated valve are fully opened during normal operation of units.For satisfying the requirement of sealing water pressure in the turbine-driven feed-water pump

the sealing water bypass valve of turbine-driven feed-water pump has to be properly opened.At the same time

the control logic of condensate system has been optimized.After optimization

the effectivenes of electricity-saving is remarkable under operation mode of frequency conversion

the safety of units has been further enhanced.

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