圆盘板开孔对缩放管盘环式换热器壳程性能影响的数值研究  

Numerical Simulation of Effect of Disc Plate's Openings on Shell Side Properties of Coiled Heat Exchanger with Convergent-Divergent Tubes

作　　者：吴秋华[1] 

机构地区：[1]东莞理工学院城市学院

出　　处：《化工机械》2013年第3期379-382,399,共5页Chemical Engineering & Machinery

摘　　要：利用CFD技术对圆盘板上开不同直径孔的缩放管盘环式换热器壳程进行了数值模拟。结果表明,圆盘板开孔能在一定程度上改善圆盘板后侧流体的流动状况,且开孔后圆盘与圆环折流板之间的流体压力分布较均匀;开孔直径越大,换热器的壳程传热系数和压降均越小,综合性能越好;开孔直径不宜过小,适当地开孔才能有效地提高换热器的综合性能。Making use of CFD, the shell side properties of coiled heat exchanger with convergent - divergent tubes were simulated. The results show that, the disc plate＇ s opening can improve fluid＇ s flow condition at disc plate＇ s rear side and can bring a well-distributed fluid pressure between disc and baffle plate; and the openings＇larger diameter can bring smaller shell side heat transfer coefficient and pressure drop. The opening＇s proper diameter can benefit the improvement of comprehensive properties of heat exchangers.

关 键 词：缩放管盘环式换热器 圆盘板 开孔 数值模拟 

分 类 号：TQ051.5[化学工程]