火电机组脱硫超低排放运行能耗分析与节能运行展望

doi:10.12096/j.2096-4528.pgt.20040

发电技术 ›› 2020, Vol. 41 ›› Issue (5): 510-516.DOI: 10.12096/j.2096-4528.pgt.20040

• 厂界环保岛与数字孪生技术 • 上一篇下一篇

火电机组脱硫超低排放运行能耗分析与节能运行展望

邱国华¹(),魏宏鸽²(),梁秀进²(),李壮²(),王丰吉²(),朱跃²()

¹ 福建华电永安发电有限公司, 福建省永安市 366013
² 华电电力科学研究院有限公司, 浙江省杭州市 310030

收稿日期:2020-07-09 出版日期:2020-10-30 发布日期:2020-11-02
作者简介:邱国华(1969),男,工程师,研究方向为锅炉检修、运行及技改, qiuguohua1@chd.com.cn|魏宏鸽(1986),男,硕士,高级工程师,研究方向为火电厂环保设施节能降耗与经济运行, hongge-wei@chder.com|梁秀进(1979),男,博士,高级工程师,研究方向为电站锅炉节能及污染物排放控制, liangxiujin@126.com|李壮(1988),男,硕士,工程师,研究方向为火电厂环保设施节能降耗与经济运行, zhuang-li@chder.com|王丰吉(1980),男,高级工程师,研究方向为火电厂锅炉燃烧及环保, fengjiwang@chder.com|朱跃(1962),男,硕士,教授级高级工程师,研究方向为锅炉燃烧技术与火电厂污染治理, yue-zhu@chder.com
基金资助:
国家重点研发计划项目(2016YFC0203704)

Energy Consumption Analysis of Desulphurization Ultra-low Emission Operation and Outlook on Its Energy-saving Operation in Thermal Power Plants

Guohua QIU¹(),Hongge WEI²(),Xiujin LIANG²(),Zhuang LI²(),Fengji WANG²(),Yue ZHU²()

¹ Fujian Huadian Yong'an Power Company Limited, Yong'an 366013, Fujian Province, China
² Huadian Electric Power Research Institute Co., LTD., Hangzhou 310030, Zhejiang Province, China

Received:2020-07-09 Published:2020-10-30 Online:2020-11-02
Supported by:
the National Key Research Program of China(2016YFC0203704)

摘要/Abstract

摘要：

完成超低排放改造后，脱硫系统运行能耗大幅增加，脱硫厂用电率平均值为1.40%，折合供电煤耗约为4.4 g/（kW·h）。随着火电企业经营压力加重，超低排放运行时必须同时兼顾节能和减排双重目标。基于此，选取了33台不同工艺（单塔、双塔）的600 MW级机组作为研究对象，从脱硫厂用电率和单位脱硫能耗2方面分析了运行能耗情况，并重点分析了能耗影响因素。最后，从开展能效对标管理、脱硫系统运行优化、关键设备节能改造、浆液品质把控、精细化检修、合理使用脱硫添加剂等角度，对脱硫运行节能进行了展望。

关键词: 脱硫厂用电率, 单位脱硫能耗, 能效对标, 运行优化

Abstract:

Operation energy consumption of flue gas desulfurization (FGD) increases greatly after finishing ultra-low emission retrofit, the average power consumption rate is 1.40%, which is equivalent to power supply coal consumption of about 4.4 g/(kW·h). With the increase of thermal power plants' operation pressure, ultra-low emission operation should consider both energy saving and pollution reducing. Taking 33 600 MW-level units using single-tower or double-tower FGD process as the research object, operation energy consumption was analyzed considering both power consumption rate and power consumption per unit of FGD. Meanwhile, the influencing factors of operation energy consumption were emphatically analyzed. Finally, outlook on operation energy saving work of FGD was proposed, considering measures including energy efficiency benchmarking management, operational optimization of FGD, energy-saving retrofit of key devices, quality control of slurry, detailed maintenance work and rational use of desulfurization additives.

Key words: power consumption rate of flue gas desulfurization (FGD), power consumption per unit, energy efficiency benchmarking, operational optimization

中图分类号:

TK16

邱国华,魏宏鸽,梁秀进,李壮,王丰吉,朱跃. 火电机组脱硫超低排放运行能耗分析与节能运行展望[J]. 发电技术, 2020, 41(5): 510-516.

Guohua QIU,Hongge WEI,Xiujin LIANG,Zhuang LI,Fengji WANG,Yue ZHU. Energy Consumption Analysis of Desulphurization Ultra-low Emission Operation and Outlook on Its Energy-saving Operation in Thermal Power Plants[J]. Power Generation Technology, 2020, 41(5): 510-516.

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火电机组脱硫超低排放运行能耗分析与节能运行展望

Energy Consumption Analysis of Desulphurization Ultra-low Emission Operation and Outlook on Its Energy-saving Operation in Thermal Power Plants

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