螺旋隔板换热器壳侧传热与流阻性能研究  

Study on shell side heat transfer and pressure drop characteristics of helical baffles heat exchanger

作　　者：曾文良 张正国[2] 林培森[2] 王世平[2] 

机构地区：[1]广东科龙电器股份有限公司技术中心,广东顺德518000 [2]华南理工大学教育部传热与节能开放研究实验室,广东广州510640

出　　处：《石油化工设备》2000年第5期4-6,共3页Petro-Chemical Equipment

基　　金：广东省自然科学基金!(960 323)

摘　　要：螺旋隔板是强化管壳式换热器壳侧传热十分有效的壳程结构型式。以现场的压缩空气为工质 ,分别对花瓣状翅片管 (以下简称为 PF管 )与低肋管在螺旋隔板支承下的传热与流阻性能进行实验研究。结果表明 ,花瓣状翅片管比低肋管具有更优越的传热性能 ,在同等的 Re下 ,PF管螺旋隔板换热器的壳侧传热系数比低肋管螺旋隔板换热器高出 40 %～ 60 % ,而且其压力损失比低肋管低 30 %～ 40 %。Helical baffles heat exchanger is one of the high efficient shell and tube heat exchanges.Heat transfer and pressure drop characteristics of petal shaped fin tube and low finned tube heat exchanger with helical baffles were introduced,in which compressed air folwing in the shell side.The experimental results show that petal shaped fin tube has better heat transfer characteristics than low finned tube. Under the equal Reynolds number, petal shaped fin tube is 40～60 percent higher than low finned tube in heat transfer coefficient,and about 30～40 percent lower than low finned tube in pressure drop. In addition,it is also compared with smooth tube under helical baffles and segment baffles respectively.

关 键 词：换热器 螺旋隔板 强化传热 花瓣状翅片管 流阻 

分 类 号：TQ051.501[化学工程]