热媒水管式烟气换热器在电站脱硫系统中的应用  

Application of WGGH in Flue Gas Desulfurization System of Power Plants

作　　者：童家麟[1] 方磊 郑建平[1] 张明[1] 

机构地区：[1]国网浙江省电力公司电力科学研究院,杭州310014

出　　处：《发电设备》2015年第4期294-296,共3页Power Equipment

摘　　要：针对气-气换热器(GGH)运行中存在压差高、易堵塞等缺陷,提出热媒水管式烟气换热器(WGGH)技术,以某超超临界机组增设WGGH系统为研究对象,比较了WGGH系统设置的技术利弊。结果表明:WGGH较GGH可以降低厂用电率,且能提高脱硫系统的可靠性,从而保障了机组的经济效益和社会效益。To overcome the deficiencies of high pressure difference existing in the gas-gas heater （GGH） that is easy to be blocked, the technology of water medium heat pipe gas-gas heater （WGGH） was proposed. Taking an ultra supercritical power unit as an example, technical advantages and disadvantages were compared for the unit before and after installation of WGGH. Results show that compared with GGH, WGGH can help to lower the auxiliary power consumption rate and improve the reliability of flue gas desulfurization system, thus ensuring the economy and social benefit of the unit.

关 键 词：燃煤火电机组 烟气脱硫 气-气换热器 可靠性 

分 类 号：X701.3[环境科学与工程—环境工程]