660MW纯凝机组抽汽供热改造方案的研究分析
Retrofit Options for 660 MW Pure Condensing Turbine Exhaust Heating
黄宏星 1陈庆华1
作者信息
- 1. 马鞍山当涂发电有限公司,安徽243102
- 折叠
摘要
以660 MW机组为例,分析计算了纯凝机组再热器热段抽汽供热、再热器冷段抽汽供热、抽汽加装压力匹配器供热这3种方案对锅炉、汽轮机、辅助设备运行的安全性和经济性的影响程度.结果表明,抽汽加装压力匹配器供热效果最佳,并验证了供热对降低蒸汽冷源损失,提高机组经济性的结论.
Abstract
Taking a 660 MW unit as an example,this paper analyzes and calculates how the operation safety and economy of boiler,turbine and auxiliary equipment is influenced by the three options,namely,the extraction steam heating of the reheater hot section,the extraction steam heating of the reheater cold section,and the extraction steam heating with press regulator of the pure condensing unit.The results show that the extraction steam heating with press regulator produces the best effect.And this heating method can reduce the steam cold source loss and increase the unit economical efficiency.
关键词
660/MW/纯凝机组/抽汽供热/压力匹配器/经济性Key words
660 MW/pure condensing turbine/exhaust heating/pressure verifier/economical efficiency引用本文复制引用
出版年
2014
NETL
NSTL
维普
万方数据