CAUSE ANALYSIS OF HIGH PRESSURE DIFFERENCE OCCURRED ON ULTRA-FILTER AND COUNTERMEASURES THEREOF

LOU Xinming Zheneng Lanxi Power Generation Co Ltd

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CAUSE ANALYSIS OF HIGH PRESSURE DIFFERENCE OCCURRED ON ULTRA-FILTER AND COUNTERMEASURES THEREOF

更新时间：2025-09-28

- CAUSE ANALYSIS OF HIGH PRESSURE DIFFERENCE OCCURRED ON ULTRA-FILTER AND COUNTERMEASURES THEREOF
- Thermal Power Generation Vol. 39, Issue 9, Pages: 89-91(2010)
- 作者机构：
  
  浙能兰溪发电有限责任公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.8
- Published：2010
- 稿件说明：
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LOU Xinming Zheneng Lanxi Power Generation Co Ltd. CAUSE ANALYSIS OF HIGH PRESSURE DIFFERENCE OCCURRED ON ULTRA-FILTER AND COUNTERMEASURES THEREOF[J]. Thermal power generation, 2010, 39(9): 89-91.
DOI：

LOU Xinming Zheneng Lanxi Power Generation Co Ltd. CAUSE ANALYSIS OF HIGH PRESSURE DIFFERENCE OCCURRED ON ULTRA-FILTER AND COUNTERMEASURES THEREOF[J]. Thermal power generation, 2010, 39(9): 89-91. DOI：

摘要

对浙能兰溪发电厂(以下简称兰溪发电厂)4×600MW机组锅炉补给水预脱盐系统超滤装置压差异常升高问题进行分析

认为其主要原因为:杀菌用次氯酸钠有效氯浓度过低

影响杀菌效果;澄清池停加杀菌剂

使超滤装置入口水微生物含量增加

导致微生物在超滤膜表面加速繁殖而形成污堵。采取相应措施后使问题得以解决

超滤装置的压差在较短的时间内恢复至正常值。

Abstract

The problem of abnormal high pressure difference occurred on ultra-filter in pre-desalting system of make-up water for boilers of 4×600 MW units at Zheneng Lanxi Power Plant has been analysed

it is believed from analysis that the main causes are as follows:(1) concentration of effective chroline in sodium hypochlorite used for killing bacteria is too low

affecting the effectiveness of killing bacter;(2) stopage of dosing bactericide into clarifying basin makes the microorganism content in the inlet water of ultra-filter to increase

leading to accelerate reproduction of microorgainsms on the surface of ultra-filtering films

resulting in blockage of fouling materials.After adopting corresponding measures

the pressure difference of said ultra-filter can return to normal value within a shorter time.

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