CAUSE ANALYSIS OF SURPASSING SET STANDARD FOR DISSOLVED OXYGEN IN CONDENSATE AND RETROFIT MEASURES THEREOF

YANG Zhen-xue; SONG Shao-weiGuodian Heze Power Plant

doi:10.19666/j.rlfd.2007.07.024

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CAUSE ANALYSIS OF SURPASSING SET STANDARD FOR DISSOLVED OXYGEN IN CONDENSATE AND RETROFIT MEASURES THEREOF

Thermal Power Generation Issue 7, Pages: 82-84(2007)

更新时间：2025-09-28

- CAUSE ANALYSIS OF SURPASSING SET STANDARD FOR DISSOLVED OXYGEN IN CONDENSATE AND RETROFIT MEASURES THEREOF
- 作者机构：
  
  国电菏泽发电厂
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2007.07.024
  CLC： TM621.8
- Published：2007
- 稿件说明：
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YANG Zhen-xue, SONG Shao-weiGuodian Heze Power Plant. CAUSE ANALYSIS OF SURPASSING SET STANDARD FOR DISSOLVED OXYGEN IN CONDENSATE AND RETROFIT MEASURES THEREOF[J]. Thermal Power Generation, 2007, (7): 82-84.
DOI：

YANG Zhen-xue, SONG Shao-weiGuodian Heze Power Plant. CAUSE ANALYSIS OF SURPASSING SET STANDARD FOR DISSOLVED OXYGEN IN CONDENSATE AND RETROFIT MEASURES THEREOF[J]. Thermal Power Generation, 2007, (7): 82-84. DOI： 10.19666/j.rlfd.2007.07.024.

摘要

针对菏泽发电厂2×300 MW机组实际运行中凝结水溶解氧超标问题

结合凝汽器补水、凝结水泵密封水和给水泵密封水回水运行方式进行分析

找出凝结水溶解氧超标原因。经改造

凝结水溶解氧浓度降至30μg/L以下

达到运行标准

同时机组真空严密性也得到改善。

Abstract

Directing against the problems of surpassing set standard for dissolved oxygen in condensate during the time of practical operation of 2×300 MW units in Heze Power Plant

Combining with the back-water operation mode of make-up water for the condenser

sealing water of the condensate pump

and sealing water of the feed-water pump

analysis has been carried out

to find out the causes leading to surpassing set standard for dissolved oxygen in the condensate.Through retrofit

the dissolved oxygen in condensate has reduced to below 30μg/L

reaching set standard in operation.At the same time

the tightness of vacuum in units has also improved.

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