气液分离器的可视化实验研究  

Experimental Study on Visualization of Gas-liquid Separator

作　　者：王丹东 柳慈翀 梁媛媛 陈江平[1] WANG Dandong;LIU Cichong;LIANG Yuanyuan;CHEN Jiangping(School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学机械与动力工程学院,上海200240

出　　处：《制冷技术》2018年第3期19-23,30,共6页Chinese Journal of Refrigeration Technology

摘　　要：气液分离器在制冷系统里起到防止压缩机液击、提供压缩机回油、储存系统中多余制冷剂等重要作用。空调除霜时的四通阀换向、停机后重启、不充分的蒸发器换热等情况下均有可能造成压缩机液击。本文搭建了气液分离器系统实验台,制作气液分离器可视化透明样件,对U型气液分离器开展了可视化微观实验研究;总结了压缩机启动时内部制冷剂两相流和润滑油的流动状态及液面高低变化,以及系统达到稳定时液面高度的变化规律;并且总结了入口管管径、入口干度和入口质量流量等参数对于气液分离器流动状态和液位变化的影响规律。Gas-liquid separator helps to solve the problems of compressor liquid hammering, oil return and extra refrigerant storeage in air contioner system. Compressor liquid hammering could be caused by the four-way valve swing under the conditions of air conditioning defrosting, resetting after compressor shutting down, insufficient heat exchange of the evaporator, etc. In this paper, an experimental apparatus for testing performance of gas-liquid separators was built, and the visualization sample for gas-liquid separators was fabricated; the experimental study about the visualization for the U-type gas-liquid separator was carried out. The two-phase refrigerant and lubricant flow behavior and level changing on start transient state and steady state were studied. The impact principles of tube diameter, mass flow rate and inlet quality on flow behavior were also analyzed.

关 键 词：气液分离器 可视化 压缩机液击 两相流 

分 类 号：TB65[一般工业技术—制冷工程]