布袋除尘器改造电除尘器关键技术在600 MW燃煤机组超低排放改造工程中的应用分析

范学明; 王磊; 桑媛媛; 王仕龙; 韩平; 郑钦臻; 闫克平

doi:10.3981/j.issn.1000-7857.2017.15.007

科技导报 >

2017 , Vol. 35 >Issue 15: 51 - 56

DOI: https://doi.org/10.3981/j.issn.1000-7857.2017.15.007

研究论文

布袋除尘器改造电除尘器关键技术在600 MW燃煤机组超低排放改造工程中的应用分析

范学明 ,
王磊 ,
桑媛媛 ,
王仕龙 ,
韩平 ,
郑钦臻 ,
闫克平

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1. 山西鲁能河曲发电公司, 河曲 036500;
2. 神华国能集团有限公司, 北京 100033;
3. 浙江大学化学工程与生物工程学院, 杭州 310027

范学明,工程师,研究方向为燃煤电厂脱硫脱硝除尘,电子信箱:17048616@shenhua.cc

收稿日期: 2017-03-13

修回日期: 2017-05-02

网络出版日期: 2017-08-16

基金资助

国家高技术研究发展计划（863计划）项目（2013AA065000）；浙江省重点科技创新团队计划项目（2013TD07）

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Application of key technology changing bag filter to electrostatic precipitator in ultra-low emission upgrading projects of coal-fired power plants

FAN Xueming ,
WANG Lei ,
SANG Yuanyuan ,
WANG Shilong ,
HAN Ping ,
ZHENG Qinzhen ,
YAN Keping

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1. Shanxi Luneng Hequ Power Plant, Hequ 036500, China;
2. Shenhua Guoneng Energy Group Corperation Limited, Beijing 100033, China;
3. Institue of Industrial Ecology and Environment, Zhejiang University, Hangzhou 310027, China

Received date: 2017-03-13

Revised date: 2017-05-02

Online published: 2017-08-16

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摘要

山西鲁能河曲发电公司完成了2×600 MW燃煤机组布袋除尘器改造为低低温电除尘器，实现了超低排放，通过协同优化三相电源低低温电除尘器和湿法脱硫同步实现SO₂和颗粒物的超低排放，针对本燃煤机组工况特点以及原布袋除尘器本体大小，通过对电除尘器本体选型、流场优化、三相电源等关键技术的工程应用，完成布袋除尘器改造电除尘器。结果表明：在电除尘器比集尘面积为83.5 m²/（m³·s）、入口烟尘质量浓度为35.8 g/m³的条件下，电除尘器出口烟尘排放总质量浓度在9.93~14.69 mg/m³，其中PM_2.5排放质量浓度不高于1.58 mg/m³。三相电源低低温电除尘集成湿法脱硫可满足燃煤电厂超低排放要求。

关键词： 燃煤电厂; 电除尘器; 比集尘面积; 数值模拟; 过程控制

本文引用格式

范学明 , 王磊 , 桑媛媛 , 王仕龙 , 韩平 , 郑钦臻 , 闫克平 . 布袋除尘器改造电除尘器关键技术在600 MW燃煤机组超低排放改造工程中的应用分析[J]. 科技导报, 2017 , 35(15) : 51 -56 . DOI: 10.3981/j.issn.1000-7857.2017.15.007

Abstract

This paper presents a pioneer project of changing the bag-filter into colder-side electrostatic precipitator (ESP) for two 600 MW coal-fired boilers of Shanxi Luneng Hequ Power Plant for ultra-low emission of particle matters (PM) and sulfur dioxide (SO₂) by cooperative optimization of colder-side ESP with three-phase power source and wet flue gas desulfurization (WFGD). Due to the coal-fired boiler condition and initial bag filter size, we change bag filter into ESP by taking ESP sizing, gas flow distribution optimizing, three-phase power source, etc. into consideration. The main result of this paper is when the ESP's specific collection area is 83.5 m²/(m³·s) with threephase rectifier transformer and the inlet ash load concentration is around 35.8 g/m³, the outlet particle mass concentration is 9.93~14.69 mg/m³, of which the mass concentration of particles with diameters of less than 2.5 μm is below 1.58 mg/m³. The integration of colder-side ESP with three-phase power source and WFGD can achieve ultra-low emissions of air pollutants for coal-fired power plants.

Key words： coal-fired power plant; electrostatic precipitator; specific collection area; numerical simulation; process control

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