NUMERICAL SIMULATION AND RETROFIT OF INLET FLUE DUCT FOR ELETROSTATIC PRECIPITATOR

TAO Kexuani1; CHAGN Yijun1; ZHANG Bo2; WANG Xiaobing2; NIU Guoping2; LU Chengzheng21.Huaneng Yuhuan Power Plant; Yuhuan 317604

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NUMERICAL SIMULATION AND RETROFIT OF INLET FLUE DUCT FOR ELETROSTATIC PRECIPITATOR

更新时间：2025-09-28

- NUMERICAL SIMULATION AND RETROFIT OF INLET FLUE DUCT FOR ELETROSTATIC PRECIPITATOR
- Thermal Power Generation Vol. 40, Issue 1, Pages: 52-54(2011)
- 作者机构：
  
  1. 华能玉环电厂
  2. 西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： X701.2
- Published：2011
- 稿件说明：
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TAO Kexuani1, CHAGN Yijun1, ZHANG Bo2, et al. NUMERICAL SIMULATION AND RETROFIT OF INLET FLUE DUCT FOR ELETROSTATIC PRECIPITATOR[J]. Thermal power generation, 2011, 40(1): 52-54.
DOI：

TAO Kexuani1, CHAGN Yijun1, ZHANG Bo2, et al. NUMERICAL SIMULATION AND RETROFIT OF INLET FLUE DUCT FOR ELETROSTATIC PRECIPITATOR[J]. Thermal power generation, 2011, 40(1): 52-54. DOI：

摘要

通过数值模拟分析某电厂超超临界4×1 000 MW机组除尘器入口飞灰流量分布不均匀的原因

认为是由于除尘器入口结构不合理所致。为此

提出了相应改进措施:(1)在烟道分配室内安装2片导流板;(2)改造原除尘器入口结构中的3号烟道和2号烟道之间的导流板;(3)在1号烟道入口下方安装导灰板。改造后

灰量分布偏差由19%降为7%

灰量均流效果显著。

Abstract

Through Numerical Simulation

the causes leading to non-uniform distribution of fly ash at inlet of the electrostatic precipitator(EP) for ultra-supercritical 4×1000 MW untis in one power plant has been analysed

it is believed that the said situation is due to unreasonable structure of the EP's inlet.For this

retrofit measures have been put forward as follows:(1) two baffle plates have to be installed into distribution chamber of the flue duct;(2) the baffle plate between flue duct no.3 and flue duct no.2 in original structure of EP's inlets has to be retrofitted;(3) a guide plate for ash has to be installed below inlet of flue duct no.1.After retrofitting

the deviation of fly ash distribution decreases from 19% before retrofit to 7% after retrofit

the effectiveness of fly ash uniformization being remarkable.

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