RETROFIT OF SLURRY PUMP IN LIMESTONE/GYPSUM WET DESULPHURIZATION SYSTEM

GAO Xiao-chun; FANG Sheng; AN Hong; WANG SenGuohua Yuedian Taishan Power Generation Co Ltd

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RETROFIT OF SLURRY PUMP IN LIMESTONE/GYPSUM WET DESULPHURIZATION SYSTEM

更新时间：2025-09-28

- RETROFIT OF SLURRY PUMP IN LIMESTONE/GYPSUM WET DESULPHURIZATION SYSTEM
- Thermal Power Generation Vol. 39, Issue 1, Pages: 39-41(2010)
- 作者机构：
  
  国华粤电台山发电有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： X701.3
- Published：2010
- 稿件说明：
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GAO Xiao-chun, FANG Sheng, AN Hong, et al. RETROFIT OF SLURRY PUMP IN LIMESTONE/GYPSUM WET DESULPHURIZATION SYSTEM[J]. Thermal power generation, 2010, 39(1): 39-41.
DOI：

GAO Xiao-chun, FANG Sheng, AN Hong, et al. RETROFIT OF SLURRY PUMP IN LIMESTONE/GYPSUM WET DESULPHURIZATION SYSTEM[J]. Thermal power generation, 2010, 39(1): 39-41. DOI：

摘要

石灰石-石膏湿法脱硫系统浆液泵普遍存在磨损严重的问题。介绍国华粤电台山发电有限公司(国华台电)1号、2号机组进口脱硫浆液泵的设计选型、磨损情况及磨损原因分析

提出其国产化改造的依据及措施

即过流件采用GGH-36不锈钢合金

合理设计转速

加厚前护板、后护板、涡壳护套、叶轮等

采用双泵壳设计

定期更换内泵壳过流件。改造后

机组经济性明显提高

系统运行稳定。

Abstract

The serious wornout problems were commonly existing on slurry pumps in limestone/gypsum wet desulphurization systems.The designed structure

wornout situation

and wornout causes of imported slurry pumps for units no.1 and no.2 in Guohua Yuedian Taishan Power Generation Co Ltd have been presented

and the bases and measures for retrofit by localization being put forward

i.e.adopting GGH 36 stainless alloy for the flow-passage pieces

designing the reasonable revolutionary speed

thickening the front and rear protecting plates

the shroud of volute

and the impellers etc.

as well as adopting double-shell design for the slurry pumps

replacing periodically flow-passage pieces in the inner shell.After retrofitting

the economic efficiency of units is obviously enhanced

the operation of said system being stabilized.

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