螺旋形和单弓形折流板换热器的工程应用比较  

APPLICATION OF HELICAL BAFFLE AND SINGLE SEGMENTAL BAFFLE HEAT EXCHANGERS

作　　者：王艳云[1] 李志安[2] 刘红禹[3] 宿萌[2] 王福新[3] 

机构地区：[1]沈阳重机重矿机械设备制造有限公司,辽宁省沈阳市110021 [2]沈阳化工学院机械工程学院,辽宁省沈阳市110142 [3]沈阳仪表科学研究院,辽宁省沈阳市110043

出　　处：《炼油技术与工程》2008年第8期33-35,共3页Petroleum Refinery Engineering

摘　　要：总结了螺旋形和单弓形折流板换热器的工程应用情况,对比了操作参数和基本结构参数相同时单弓形和螺旋形折流板换热器的工作性能特点,并对壳程同一介质下两种不同形式折流板换热器壳程的流动阻力和传热效果进行分析比较。结果表明,螺旋形折流板换热器的传热性能明显比单弓形折流板换热器要好,而且能有效降低壳程压力损失。The commercial application of helical baffle and single segmental baffle heat exchangers is described. The operating performances of helical baffle heat exchanges are compared with those of single segmental baffles at the same operating parameters and same construction dimensions. The flow resistance and heat efficiency of two different heat exchangers with the same medium are analyzed. The results indicate that the heat transfer performance of the helical baffle heat exchanger is better than that of single segmental baffle heat exchanger. Moreover, the helical baffles heat exchanger can effectively reduce the shell-side pressure drop.

关 键 词：换热器 螺旋形折流板 单弓形折流板 Nu数 压力损失 

分 类 号：TK172[动力工程及工程热物理—热能工程]