压缩机出口扩散焊型冷却器热工性能的实验研究  

Experimental Study on Thermal Performance of Diffusion Bonding Type Heat Exchanger at Compressor Outlet

作　　者：于改革 陈永东 韩冰川 刘孝根 YU Gaige;CHEN Yongdong;HAN Bingchuan;LIU Xiaogen(Hefei General Machinery Research Institute Co.,Ltd.,Hefei 230031,Anhui,China;School of Mechanical Engineering,Xi'an Jiaotong University,Xi'an 710049,Shaanxi,China)

机构地区：[1]合肥通用机械研究院有限公司,安徽合肥230031 [2]西安交通大学机械工程学院,陕西西安710049

出　　处：《制冷技术》2024年第6期11-16,共6页Chinese Journal of Refrigeration Technology

基　　金：安徽省重点研究和开发计划(No.2023z04020020);国机集团重大科技专项(No.ZDZX2021-1)。

摘　　要：通过对扩散焊换热器样机热工性能实验获得了总传热系数与阻力损失数据,并与提出的准则方程计算结果进行对比。结果表明:针对单相液体在1168≤Re≤7182,提出的之字形流道准则方程对总传热系数理论计算与实验结果偏差在5.0%以内,阻力损失偏差在14.5%以内,可以较好地预测扩散焊换热器的传热与流动性能。压缩机后冷却器样机传热特性研究表明:水侧采用之字形通道、气侧采用直通道时,提出的准则方程和Gnielinski公式可以直接用于工程设计,为海洋油气平台压缩机级间/后冷却器的工程设计提供借鉴。The total heat transfer coefficient and resistance loss are obtained through thermal performance testing of the printed circuit heat exchanger prototype,and compared and analyzed with the proposed criterion equation calculation.The results show that for single-phase liquids in 1168≤Re≤7182,the proposed zig-zag criterion equation is a theoretical calculation and experimental result deviation of less than 5.0%for the total heat transfer coefficient,and a resistance loss deviation of less than 14.5%,which can effectively predict the heat transfer and flow performance of diffusion bonding heat exchanger.The study on the heat transfer characteristics of the prototype of the compressor aftercooler shows that when the water side adopts a zig zag channel and the gas side adopts a straight channel,the proposed criterion equation and Gnielinski formula can be directly used in engineering design,providing reference for the engineering design of compressor interstage/aftercooler on offshore oil and gas platforms.

关 键 词：扩散焊 印刷电路板式 冷却器 

分 类 号：TQ051.5[化学工程] TB652[一般工业技术—制冷工程]