摘要
本文对水平安装的应用于干式壳管蒸发器的12孔圆锥式分配器进行了结构优化设计。通过实验验证了CFD模型的合理性,模拟能够准确预测分流器的性能。找出了分配器性能的6种结构影响因素,利用CFD模拟,分析了各个结构参数影响因素下的分流均匀性。得出分配孔径2 mm,分配孔长度30 mm,节流孔长度10 mm,节流孔径3.57 mm为最佳结构,不均匀度为0.27;而将分配孔插入混合腔可以进一步优化分配器的分配性能,不均匀度可以减小达40%。
In this passage,the structure of a 12-hole conical distributor that is installed horizontally and applied to a dry-expansion shell and tube evaporator is optimized.The rationality of the CFD model is verified through experiments,and the performance of the distribution can be predicted by simulation.The six structural parameters of the distributor performance are found,and the distribution uniformity under the influence factors of each parameter is analyzed by CFD simulation.It is concluded that the distributor with the distribution diameter of 2 mm and length of 30 mm,the orifice length of 10mm and diameter of 3.57 mm is the best structure,with an unevenness of 0.27.Inserting the distribution hole into the mixing cavity can further optimize the distribution performance of the distributor,with the unevenness reduced by up to 40%.
作者
傅羽欣
黄天骢
刘斌
胡海涛
FU Yuxin;HUANG Tiancong;LIU Bin;HU Haitao(Institute of Refrigeration and Cryogenics,Shanghai Jiao Tong University,Shanghai 200240,China;Zhejiang Extek Technology Co.,Ltd.,Anji 313300,Zhejiang,China)
出处
《制冷技术》
2022年第5期62-67,共6页
Chinese Journal of Refrigeration Technology
基金
国家自然科学基金(No.51976115)
关键词
圆锥式分配器
干式壳管蒸发器
结构优化
CFD模拟
分配性能
Conical distributor
Dry-expansion shell and tube evaporator
Structure optimization
CFD simulation
Distribution performance
