摘要
为系统分析燃煤电站烟气污染物协同治理中的负协同效应,针对167台以低低温电除尘器为核心技术路线的机组为样本,分析各种负协同效应机理。对某350 MW机组的研究证明:在启机运行初期低温省煤器烟气阻力及除尘器出口烟尘浓度的提升幅度并不明显,但在停机前,低温省煤器压降每月提升52.23和36.23 Pa,除尘器出口烟尘浓度每月提升3.06和2.88 mg/m^3,即机组运行周期越长,其负协同效应越容易显现。
To systematically analyze negative synergy effects of synergetic treatment for flue gas pollutants in coal-fired power plant,167 units with low-low temperature electrostatic precipitator as the core technical route were taken as samples.And the mechanism and mutual relationship of various negative synergy effects were analyzed deeply.A 350 MW coal-fired power unit was studied.The results showed that pressure drop of low-temperature economizer and dust concentration at the outlet of precipitator were not significantly increased in the initial stage of start-up operation.But in the stage before shutdown,pressure drop of low-temperature economizer increased by 52.23 and 36.23 Pa monthly,and dust concentration at the outlet of precipitator increased by 3.06 and 2.88 mg/m^3 monthly.That is,the longer the unit′s operation cycle,the easier its negative synergy effects will appear.
作者
高沛荣
晏志仁
杨君
马骁骅
GAO Pei-rong;YAN Zhi-ren;YANG Jun;MA Xiao-hua(Xi′an Thermal Power Research Institute Co.,Ltd.,Xi'an,China,710032;Huaneng Ruijin Power Plant Co.,Ltd.,Ganzhou,China,341100)
出处
《热能动力工程》
CAS
CSCD
北大核心
2020年第11期162-168,共7页
Journal of Engineering for Thermal Energy and Power
关键词
烟气污染物
协同治理
负协同效应
增量排放
治理能力下降
flue gas pollutants
synergetic treatment
negative synergy effect
incremental emission
decline of treatment capacity
