中国电力2018，Vol.51Issue(4)：143-148,6.DOI:10.11930/j.issn.1004-9649.201704099
冷凝式除雾器在脱硫系统中的应用及性能评价
Application and Performance Evaluation of Condensed Mist Eliminator in Desulphurization System
摘要
Abstract
In order to realize the ultra-low emissions, a 600 MW coal-fired unit is retrofitted by replacing the original demister in desulphurization tower (two-stage roof type demister plus one-stage tubular demister) with the condensed mist eliminator. The condensed mist eliminator consists of three-stage ridge-type high-efficiency demister and condensed wet layer. In addition, a cooling station outside the tower composed of a spray cooling water pump and a closed cooling equipment is provided. The droplet emissions as well as overall collaborative efficiency of dust collection and SO3desulfurization efficiency of whole desulfurization system were tested under 50% and 100% working conditions respectively by adjusting the operating mode of outside cooling tower of the condensing demister. The test results show that the thermal capacity of the cooling station has significant influence on the operation performance of the condensing mist eliminator. Enhancing the heat transfer at the cooling station is helpful to improve the removal efficiency of droplet, dust and SO3.关键词
燃煤机组/烟气脱硫/冷凝式除雾器/冷却站/协同除尘/协同脱除性能评价Key words
coal-fired power unit/desnifurization system/condensing mist eliminator/cooling station/synergistic dust removal/performance evaluation of synergistic removal分类
信息技术与安全科学引用本文复制引用
王丰吉,尤良洲,朱跃,胡妲..冷凝式除雾器在脱硫系统中的应用及性能评价[J].中国电力,2018,51(4):143-148,6.基金项目
国家重点研发计划(2016YFC0203701-5).This work is supported by The National Key Research and Development Program(No.2016YFC0203701-5). （2016YFC0203701-5）
