摘要
某电厂350 MW燃煤机组采用常规电除尘器除尘,为满足新环保要求完成了相关的改造,采取的主要措施包括:原电除尘器电源更换为新型脉冲电源,并将原管式省煤器改为高效H型鳍片省煤器,同时在电除尘器前新增了低温省煤器;吸收塔采用MgO喷淋脱硫工艺;在吸收塔上部两级屋脊式除雾器下方新增了一级管式除雾器。烟气脱硫(flue gas desulfurization,FGD)系统性能试验结果表明,在FGD出口净烟气的含尘质量浓度达到6.5 mg/m3,小于国家新颁发的排放要求。
Conventional electrostatic precipitator（ESP）is used for dust removal for 350 MW coal-fire unit in some power plant.In order to meet new environmental protection requirements,related transform is finished,and main measures include changing original power source of the ESP into new typed pulse power source,retrofitting tubular economizer to highefficiency H typed fin economizer and newly increasing low-temperature economizer in the front of the ESP.MgO spraying desulfurization technic is used for the absorption tower and a tubular demister is newly installed below the two-stage demister in the upper absorption tower.Result of performance experiment on the flue-gas desulfurization（FGD）system indicates that mass concentration of dust in purified flue gas at the exit of FGD system reaches to 6.5 mg/m3,This value is less than the emissron starclads promulgated by the state.
出处
《广东电力》
2016年第3期20-24,37,共6页
Guangdong Electric Power
作者简介
易勇智（1963），男，湖南湘乡人。高级工程师，工学学士，主要从事火力发电厂的运行、检修等生产管理工作。
门义正（1981），男，河南南阳人。工程师，工学学士，主要从事电厂除尘脱硫系统的运行及管理工作。
田波（1980），男，辽宁沈阳人。工程师，工学学士，主要从事电厂除尘脱硫系统的运行检修、维护工作。
