冷凝再热复合技术应用于燃煤电厂湿烟羽治理的可行性分析  

FEASIBILITY ANALYSIS OF THE CONDENSATION AND REHEATING COMPOSITE TECHNOLOGY APPLIED TO THE WET PLUME CONTROL IN COAL FIRED POWER PLANT

作　　者：舒喜 杨爱勇[1] 叶毅科 韦飞[1] 王敏[1] 王春玲[1] 

机构地区：[1]国电环境保护研究院,南京210031

出　　处：《环境工程》2017年第12期82-85,91,共5页Environmental Engineering

基　　金：国家863计划项目:燃煤电站多污染物综合控制技术研究与示范(2013AA065401)

摘　　要：为了消除"湿烟羽",目前一般采用MGGH等烟气再热技术。该技术虽然可以提高烟气扩散效果,但不能减少污染物的排放,且能耗较高、环境温度较低时(约低于15℃)不能消除"湿烟羽"现象。为了降低能耗、污染物减排、完全消除"湿烟羽"现象,研发了烟气冷凝再热复合技术。以我国长江下游某300 MW机组为例,对烟气冷凝再热复合技术与常规MGGH技术进行经济技术对比分析。研究结果表明:冷凝再热复合技术与MGGH技术相比,投资费用相当,但可有效实现降低能耗、节水、污染物减排、消除"湿烟羽"等多种目的,具有较好的经济和环境效益。In order to eliminate the ＂wet plume＂,MGGH and other flue gas reheating technology is commonly used. This technology can improve the effect of gas diffusion effect,but can not reduce the amount of pollutant emissions. This technology has high energy consumption and invalid to eliminate＂wet plume＂phenomenon when environmental temperature is lower than 15 ℃. In order to reduce energy consumption,pollutant emission and completely eliminate the＂wet plume＂phenomenon,the condensation and reheating composite technology was development. In this paper,the economic and technical comparison analysis of the flue gas condensation and reheating composite technology and conventional MGGH technology was applied to a 300 MW unit which was located in the downstream of Yangtze River. The results showed that the investment cost was equivalent in the special case,but the condensation and reheating composite technology had many economic and environmental benefits such as energy consumption reduction,water saving,pollutant emission reduction and ＂wet plume＂elimination.

关 键 词：冷凝再热技术 湿烟羽 节水节能 污染物减排 

分 类 号：X773[环境科学与工程—环境工程]