一种新型的电站间接空气冷却系统  

New indirect air cooling system in power plant

作　　者：陈立军[1,2] 杨善让[2] 王升龙[2] 卢洪波[2] 

机构地区：[1]华北电力大学,河北保定071003 [2]东北电力大学,吉林省吉林市132012

出　　处：《吉林大学学报（工学版）》2009年第S1期146-149,共4页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家重点基础研究发展规划项目(2007CB206904)

摘　　要：在蒸汽动力循环耦合正、逆制冷循环的电站空冷系统(简称原系统)的基础上,首次将氨吸收制冷工艺应用到汽轮机排汽冷却,提出了一种基于氨吸收式制冷复合循环的间接空冷系统(简称新型系统)。通过改进,新型系统在环境高温时段,利用氨吸收制冷循环的设备代替了复合空冷系统的压缩机,降低了能耗;在环境低温时段,增设了氨气过热器及氨气轮机产能发电,充分利用了环境低温资源。介绍了新型系统的组成和工作原理,并与原系统进行了对比分析,指出了有待进一步深入研究的问题。A new indirect air cooling system based on ammonia absorption refrigeration cycle(next be abbreviated to new system) in power plant was presented in this paper.The new system hold the whole advantage of the air cooling system of steam power cycle coupled with positive & negative refrigeration cycle(next be abbreviated to old system).In high temperature,it replaces compressor with ammonia absorb refrigeration equipment to reduce energy consumption, on the other hand,in low temperature,it adds supper heat exchanger and ammonia gas turbine to generate electricity.The principles in the former claim are credible.Through comparing the old system with new system,this paper not only illustrated the components and process flow diagram predicted the effects,but also pointed out the unsolved questions for the new system.

关 键 词：汽轮机排汽 空气冷却系统 氨蒸气压缩制冷循环 氨吸收制冷循环 复合循环 

分 类 号：TM621[电气工程—电力系统及自动化]