600 MW燃煤机组SO2、烟尘综合治理技术经济性分析

doi:10.11930/j.issn.1004-9649.201807098

中国电力 ›› 2019, Vol. 52 ›› Issue (3): 36-42.DOI: 10.11930/j.issn.1004-9649.201807098

600 MW燃煤机组SO₂、烟尘综合治理技术经济性分析

张志中, 张杨, 杜振, 裴煜坤, 徐克涛, 朱跃

华电电力科学研究院有限公司, 浙江杭州 310030

收稿日期:2018-07-31 修回日期:2018-08-27 出版日期:2019-03-05 发布日期:2019-03-27
作者简介:张志中(1987-),男,硕士,工程师,从事火电厂环保技术的研究与应用,E-mail:zhizhong426@126.com;张杨(1985-),男,硕士,高级工程师,从事火电厂环保技术的研究与应用,E-mail:yang-zhang@chder.com;杜振(1985-),男,硕士,工程师,从事能源利用过程中烟气污染物综合治理的基础和应用研究,E-mail:zhen-du@chder.com
基金资助:
国家重点研发计划资助项目（典型除尘器颗粒物脱除响应关系数据库构建及高效除尘技术装备与系统的性能评估研究，2017YFB0603201-03）。

Techno-Economic Analysis on Comprehensive SO₂ and Dust Treatment Technologies of 600 MW Coal-Fired Units

ZHANG Zhizhong, ZHANG Yang, DU Zhen, PEI Yukun, XU Ketao, ZHU Yue

Huadian Electric Power Research Institute Co., Ltd., Hangzhou 310030, China

Received:2018-07-31 Revised:2018-08-27 Online:2019-03-05 Published:2019-03-27

摘要/Abstract

摘要： 针对燃煤电厂烟尘、SO₂超低排放要求，简述目前多采用的高效脱硫技术，脱硫系统协同除尘技术和湿式电除尘器技术。以某燃用高硫、高灰煤600 MW机组SO₂、烟尘超低排放改造为例，在技术参数、工程量、适应能力、投资及运行成本方面，对双塔双循环脱硫协同除尘方案（方案1）及双塔双循环+湿式电除尘器脱硫除尘方案（方案2）进行技术经济比较。由比较结果可知，方案1的改造工程量、检修维护工作量及增加的厂用电耗小于方案2；方案2在机组负荷和入口烟尘浓度适应性、烟尘理化特性敏感度、运行稳定性方面优于方案1；方案2的总投资费用、运行维护成本高于方案1，但能够进一步协同脱除SO₃，有助于消除蓝色烟羽现象。

关键词: 燃煤电厂, 超低排放, 烟气治理, 有色烟羽治理, 高效脱硫, 协同除尘, 双塔双循环, 湿式电除尘器, 技术经济分析

Abstract: In view of the requirements of ultra-low SO₂ and dust emission in coal-fired power plants, the currently widely-used technologies of high-efficiency desulfurization, collaborative dust removal of desulfurization system and wet electrostatic precipitator have been briefly described. Taking the example of ultra-low SO₂ and dust emission renovation in 600 MW units burning coal with high sulfur and high ash content, the techno-economic assessment has been performed to study the scheme of double-tower double-cycle collaborative desulfurization and dust removal (i.e. scheme one) and the scheme of double-tower double-cycle design equipped with wet electrostatic precipitator (i.e. scheme two) in terms of technical parameters, engineering work load, adaptability, investment expense and the cost of operation. The comparison result shows that the scheme one comes with less renovation engineering work load, maintenance work load or additional auxiliary power consumption of power plant, while scheme two has advantages over scheme one in the aspects of the adaptabilities of unit load and inlet dust concentration, the physicochemical property sensitivities of dust and the operation stability. Although the total investment expense and the cost of operation and maintenance of scheme two are higher than those of scheme one, scheme two is capable of promoting further collaborative SO₃ removal and contributing to eliminating the issue of blue smoke plume.

Key words: coal-fired power plant, ultra-low emission, flue gas treatment, blue plume treatment, efficient desulfurization, collaborative dust removal, double-tower double-cycle, wet electrostatic precipitator, techno-economic analysis

中图分类号:

TM621.9
X51

张志中, 张杨, 杜振, 裴煜坤, 徐克涛, 朱跃. 600 MW燃煤机组SO₂、烟尘综合治理技术经济性分析[J]. 中国电力, 2019, 52(3): 36-42.

ZHANG Zhizhong, ZHANG Yang, DU Zhen, PEI Yukun, XU Ketao, ZHU Yue. Techno-Economic Analysis on Comprehensive SO₂ and Dust Treatment Technologies of 600 MW Coal-Fired Units[J]. Electric Power, 2019, 52(3): 36-42.

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https://www.electricpower.com.cn/CN/Y2019/V52/I3/36

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600 MW燃煤机组SO₂、烟尘综合治理技术经济性分析

Techno-Economic Analysis on Comprehensive SO₂ and Dust Treatment Technologies of 600 MW Coal-Fired Units

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