MEASURES FOR ENHANCING VACUUM IN OPERATION OF CONDENSER

SUN Zhi-hong; FAN Ai-bingHuadian Yangzhou Power Generation Co Ltd

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MEASURES FOR ENHANCING VACUUM IN OPERATION OF CONDENSER

更新时间：2025-09-28

- MEASURES FOR ENHANCING VACUUM IN OPERATION OF CONDENSER
- Thermal Power Generation Vol. 38, Issue 8, Pages: 93-95(2009)
- 作者机构：
  
  华电扬州发电有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.3
- Published：2009
- 稿件说明：
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SUN Zhi-hong, FAN Ai-bingHuadian Yangzhou Power Generation Co Ltd. MEASURES FOR ENHANCING VACUUM IN OPERATION OF CONDENSER[J]. Thermal power generation, 2009, 38(8): 93-95.
DOI：

SUN Zhi-hong, FAN Ai-bingHuadian Yangzhou Power Generation Co Ltd. MEASURES FOR ENHANCING VACUUM IN OPERATION OF CONDENSER[J]. Thermal power generation, 2009, 38(8): 93-95. DOI：

摘要

凝汽器真空值的高低与汽轮机组的安全性和经济性密切相关。通过对扬州发电有限公司7号300 MW机组运行真空低的原因分析

认为影响该机组真空低的主要因素是凝汽器总体换热系数偏小、冷却水流量偏低及抽气系统工作不正常等。对此

提出了提高真空的有效途径及解决方法

如循环水泵改造、凝汽器冷却管除垢等。通过实施改造

使机组运行真空提高约4 kPa。

Abstract

The vacuum value in condenser is closely related to safety and economic efficiency of the steam turbine unit

through cause analysis of low vacuum in operation of unit no.7 in Yangzhou Power Generation Co Ltd

it is believed that the main factors affecting low vacuum in operation of said unit are as follows:smaller total heat exchange coefficient of the condenser;lower flow rate of the cooling water;and abnormal operation of the air-extracting system

etc..For these

effective ways and solving measures for enhancing the vacuum

such as retrofitting the circulating water pump

and descaling from tubes in condenser

etc.have been put forward.Through implementation of the retrofit scheme

the vacuum in operation of said condenser has been enhanced by 4 kPa.

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