冷凝器强化传热特性分析  

Analysis of the Characteristics of Heat Transfer Enhancement in Steam Condensers

作　　者：阎昌琪 孙中宁 

机构地区：[1]哈尔滨工程大学动力与核能工程学院,150001

出　　处：《核科学与工程》2001年第4期317-321,共5页Nuclear Science and Engineering

摘　　要：分析了影响冷凝器总传热系数的主要因素 ,阐述了管壁污垢系数对冷凝器传热性能的影响。提出了冷凝器强化传热的关键问题在于管外 ,增加管外侧传热系数会使冷凝器的效率大幅度提高。对冷凝器中采用螺纹槽管强化传热的方法进行了分析 ,提出了采用低翅片管或在螺纹槽管外侧采用适当的强化传热手段可以使冷凝器的传热效率得到提高。The influence of main factors on overall heat transfer was analyzed, and the effects of fouling factors on heat transfer characteristics in steam condenser were clarified. It was proposed that the tube outside enhancement is the most important attribute, when outside heat transfer coefficient increased there will be a big increase in condenser efficiency. The characteristics of heat transfer enhancement by spirally indented tube were investigated. It was proposed that condenser heat transfer efficiency will be raised when the low fin tube or the spirally indented tube with special treated surface were used.

关 键 词：冷凝器 强化传热 螺纹槽管 核动力装置 传热效率 

分 类 号：TL331[核科学技术—核技术及应用] TL353.1