某600MW机组冷端系统优化及应用研究  

The Application Study of Optimization for the Cold End System in a 600MW Unit

作　　者：蒋文 胡清 宁玉琴 朱文中 JIANG Wen HU Qing NING Yu-qing ZHU Wen-zhong(Hangzhou Huadian Energy Engineering Institute, Hangzhou 310030, China Huadian Electric Power Research Institute, Hangzhou 310030, China)

机构地区：[1]杭州华电能源工程有限公司,杭州310030 [2]华电电力科学研究院,杭州310030

出　　处：《汽轮机技术》2017年第1期63-64,66,共3页Turbine Technology

摘　　要：介绍了一种冷端系统改造技术,并对该技术在国内某600MW机组投入运行后的经济性进行了分析,得出以下结论:冷端系统改造技术可大幅降低凝汽器运行压力,相比于改造前,凝汽器运行压力降低0.99kPa;该冷端系统改造技术投入运行后,机组年平均标煤耗降低2.48g/(kW·h),按机组年运行5500h、标煤单价600元/t计算,节能效益为515.6万元/年。This article introduced a technology of reconstruction for the cold end system. And took a 600 MW unit as the example,the application benifits of this technology was analysised,the result showed that： this technology can substantially depress the pressure of steam condenser, comparing with the pressure before reconstruction, the pressure depressed 0.99 kPa; after its application,the standard coal consumption of the unit depressed 2.48 g/（ kW · h）. On the basis of 5500 hours running time and 600 yuan per ton coal,the energy-saving benefits is about 5. 156 million yuan each year.

关 键 词：冷端系统 凝汽器压力 标煤耗 节能效益 

分 类 号：TK264[动力工程及工程热物理—动力机械及工程]