1 350 MW机组电除尘器选型及其钢支架热膨胀影响控制

doi:10.11930/j.issn.1004-9649.201807105

中国电力 ›› 2019, Vol. 52 ›› Issue (1): 124-128,136.DOI: 10.11930/j.issn.1004-9649.201807105

1 350 MW机组电除尘器选型及其钢支架热膨胀影响控制

赵海宝, 何毓忠, 沈志昂, 蒋华, 姚宇平

浙江菲达环保科技股份有限公司, 浙江诸暨 311800

收稿日期:2018-08-02 修回日期:2018-08-30 出版日期:2019-01-05 发布日期:2019-01-14
作者简介:赵海宝(1987-),男,硕士,工程师,从事电除尘及燃煤电站污染物控制研究,E-mail:zhaohaibaozj@163.com;何毓忠(1970-),男,硕士,高级工程师(教授级),从事烟气除尘技术开发与管理,E-mail:heyuzhong2002@163.com;蒋华(1975-),男,学士,工程师,从事环保设备钢结构强度设计,E-mail:1243477646@qq.com
基金资助:
国家重点研发计划资助项目（新型高效静电除尘装备，2017YFB0603202；高灰煤超低排放技术与装备集成及应用，2016YFC0203704）。

Type Selection on 1 350 MW Electrostatic Precipitator and Its Steel Frame Control on Thermal Expansion

ZHAO Haibao, HE Yuzhong, SHEN Zhi'ang, JIANG Hua, YAO Yuping

Zhejiang Feida Environmental Science & Technology Co., Ltd., Zhuji 311800, China

Received:2018-08-02 Revised:2018-08-30 Online:2019-01-05 Published:2019-01-14
Supported by:
This work is supported by National Key R & D Program of China (New High-Efficiency Electrostatic Precipitator Equipment, No.2017YFB0603202; Equipment Integration and Demonstration Application on Ultra-Low Emissions Technique of High-Ash Coal, No.2016FYC0203704).

摘要/Abstract

摘要： 燃煤火电机组的最新技术发展带动了相应辅机设备的选型及设计技术的发展。以安徽某1 350 MW高低位分轴布置超超临界二次再热机组配置的大型电除尘器为例，对比分析了不同电除尘器选型方案（每台炉配套2台四室五电场、3台三室五电场、4台双室五电场）；基于有限元分析软件，针对有较好经济性的四室五电场大型电除尘器，分析了热膨胀量大引起的强度不足问题，并设计了立柱预偏心结构。结果表明：热膨胀对超大型电除尘器钢支架的强度影响较大，立柱预偏心结构可有效解决这一问题。

关键词: 燃煤机组, 1 350 MW机组, 电除尘器, 热膨胀, 钢结构

Abstract: The recent technology development of coal-fired generation unit drives the progress of corresponding auxiliary equipments and their design techniques. Take the example of the electrostatic precipitator (ESP) installed in a 1 350 MW double reheat ultra supercritical coal-fired unit in Anhui province with cross compound steam turbine arrangement featured by separated shafts with elevated and conventional layout. The schemes for ESP type selection are analyzed and different combinations are compared, i.e., two sets with four-chamber and five-field, three sets with three-chamber and five-field, four sets with two-chamber and five-field of ESPs. Especially regarding the four-chamber ESP with better economic performance, the problem of insufficient strength caused by thermal expansion is analyzed by a finite element analysis software package and then the pre-eccentricity of pivots is developed. The result shows that the thermal expansion has significant impacts on the strength of the steel frame of large size ESPs and the pre-eccentricity of pivots can effectively reduce the internal force and deformation.

Key words: coal-fired power plant, 1 350 MW unit, ESP, thermal expansion, steel frame

中图分类号:

M621.7⁺3

赵海宝, 何毓忠, 沈志昂, 蒋华, 姚宇平. 1 350 MW机组电除尘器选型及其钢支架热膨胀影响控制[J]. 中国电力, 2019, 52(1): 124-128,136.

ZHAO Haibao, HE Yuzhong, SHEN Zhi'ang, JIANG Hua, YAO Yuping. Type Selection on 1 350 MW Electrostatic Precipitator and Its Steel Frame Control on Thermal Expansion[J]. Electric Power, 2019, 52(1): 124-128,136.

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1 350 MW机组电除尘器选型及其钢支架热膨胀影响控制

Type Selection on 1 350 MW Electrostatic Precipitator and Its Steel Frame Control on Thermal Expansion

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1 350 MW机组电除尘器选型及其钢支架热膨胀影响控制

Type Selection on 1 350 MW Electrostatic Precipitator and Its Steel Frame Control on Thermal Expansion

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