摘要
排烟余热在热力系统中的利用方式之一是设置前置式空气预热器,而这种设计会导致使用前置式空气预热器比使用原空气预热器排烟温度高,使排烟余热利用效率下降。针对此问题提出了一种设置旁路烟气冷却器的优化热力系统,结合四川省600 MW机组锅炉空气预热器,进行了烟气余热热力系统的设计。该设计可大幅度地节约煤耗,降低排放。
One way of exhaust heat utilization in thermal system is to set up preposed air preheater which will result in highter te- mperature in exhaust of the preposed air preheater than that of the original air preheater, decreasing the efficiency of waste heat utilization. In this regard, this paper put forward an optimization thermal system by setting bypass flue gas cooler. Combined with the 600 MW unit, this paper carried out the design of exhaust heat thermal system, which can greatly save coal consumption and reduce emissions.
作者
张莹
常建忠
刘汉涛
郭少豪
ZHANG Ying CHANG Jianzhong LIU Hantao GUO Shaohao(School of Mechanical and Power Engineering, North University of China, Taiyuan 030051, Shanxi, China Shanxi Institute of Energy, Jinzhong 030602, Shanxi, China)
出处
《能源与节能》
2017年第8期98-99,共2页
Energy and Energy Conservation
基金
国家自然科学基金项目(51476150)
关键词
余热利用
前置式空气预热器
热力系统
优化
节约煤耗
waste heat utilization
preposed air preheater
thermal system
optimization
coal consumption saving
