新型WGGH系统节能分析与实践  

Energy Saving Research and Application of a New WGGH System

作　　者：黄惠军 徐志强 钱成龙 Huang Huijun;Xu Zhiqiang;Qian Chenglong(Jiangyin Sulong Thermal Power Co.,Ltd.,Jiangyin 214442,Jiangsu Province,China;State Grid Jiangsu Electric Power Engineering Consulting Co.,Ltd.,Nanjing 210000,China)

机构地区：[1]江阴苏龙热电有限公司,江苏江阴214442 [2]国网江苏省电力工程咨询有限公司,南京210000

出　　处：《发电设备》2020年第5期344-346,351,共4页Power Equipment

摘　　要：为消除“有色烟羽”并节能,提出了一种新型水媒式烟气烟气换热器(WGGH)系统。利用汽轮机低压凝结水作为热媒,将原烟气放热器和脱硫后的净烟气加热器串联在一起,实现了对热量的高效利用。结果表明:技术改造完成后,该新型WGGH系统运行稳定,达到了设计预期,在保证环保要求的前提下有效地降低了机组供电煤耗。To achieve the goal of energy saving and“colored plume”elimination,a new water gas-gas heater(WGGH)system was proposed for energy saving and environmental protection,which uses the low-pressure condensate from steam turbine as the heating medium,and connects the original flue gas radiator with the desulfurized net flue gas heater in series to realize high efficient energy utilization.Results show that after retrofit,the new WGGH system can operate stably and met the design expectations.It can effectively reduce the coal consumption for power supply of the unit while ensuring the requirements of environmental protection.

关 键 词：WGGH 锅炉排烟 节能 环保 

分 类 号：X701.2[环境科学与工程—环境工程]