双背压凝汽器热井回热除氧改造  

Deoxygenation Retrofit of Double Back Pressure Condenser Hot Well

作　　者：阳欧 高扬[1] YANG Ou;GAO Yang(Dongfang Turbine Co.,Ltd,Deyang 618000 China)

机构地区：[1]东方汽轮机有限公司,四川德阳618000

出　　处：《科技创新与生产力》2021年第4期42-44,共3页Sci-tech Innovation and Productivity

摘　　要：为解决热井无回热的双背压凝汽器运行中因低背压侧热井凝结水直接排入高背压侧热井混合导致的凝结水过冷度大、溶氧能力大、氧含量高等问题,本文提出了一种膜式除氧的方法,结构简单,该方法有效地降低了凝结水的过冷度,除氧效果明显。For the double back pressure condenser without regenerative heat in hot well,the condensate from the hot well on the low back pressure side is directly discharged into the high back pressure side,which will lead to the subcooling degree of the condensate up to 2~3℃,high oxygen dissolving capacity and high oxygen content.In order to solve these problems,this paper proposes a membrane-type deaeration method with simple structure,which effectively reduces the supercooling degree of condensate water and the deaeration effect is obvious.

关 键 词：凝汽器热井 双背压凝汽器 含氧量 过冷度 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]