板式蒸发式冷凝器传热性能试验研究  

Experiment Study on Heat Transfer Characteristics of Plate-type Evaporative Condenser

作　　者：钟振兴[1] 朱冬生[1] 刘清明[1] 张景卫[1] 

机构地区：[1]华南理工大学传热强化与过程节能教育部重点实验室,广东广州510640

出　　处：《流体机械》2011年第2期58-61,39,共5页Fluid Machinery

基　　金：国家"863"高技术研究发展专题课题(2007AA05Z200);广东省科技厅广州市科技局联动项目(2007A04020004);广州市科科技计划项目2007C13G0041

摘　　要：搭建了板式蒸发式冷凝器传热性能试验平台,对影响板式蒸发式冷凝器传热性能的主要因素———喷淋水流量、风速、汽液流向以及工艺流体进出口位置进行试验研究。结果表明:空气与水并流时传热效果最好、逆流次之、错流最差;板内冷凝压力随冷却循环水喷淋密度、风速的增大而减小;在各自最佳风速,不同汽液流向操作下,蒸汽对角进出时的热流密度均比蒸汽同侧进出时大。Plate-type condenser experimental platform of heat transfer performance is built,major factors affecting heat transfer characteristics of the plate-type evaporative condenser are studied,such as spray water flow,velocity of wind,import and export position of process fluid.The results showed that： co-current flow of air and water with the best heat transfer result,followed by counter-current flow and cross-flow.Condensing pressure in condenser decreases with the increasing of the circulating cooling water and velocity of wind.Upon the best velocity of wind and different vapor-liquid flow operation,the heat flux when the steam flow opposite side of the corner is greater than it when on the same side.

关 键 词：板式蒸发式冷凝器 薄膜 传热 试验研究 

分 类 号：TB65[一般工业技术—制冷工程]