低温捕集器内部流动及传热传质过程分析  

THE ANALYSIS OF THE FLOW, HEAT AND MASS TRANSFER PROCESS INSIDE A CRYOGENIC PH_3 TRAPPER

作　　者：袁秀玲[1] 黄东[1] 陈蕴光[1] 李伟霞[1] 濮正翔 

机构地区：[1]西安交通大学,西安710049

出　　处：《低温工程》1999年第1期12-17,共6页Cryogenics

基　　金：国家自然科学基金!29676034

摘　　要：分析了ＰＨ３与Ｎ２的二元混合气体在ＰＨ３低温捕集器中的二次相变流动，从理论上研究了其传热传质过程的机理。分析结果认为，此过程可分为：凝华、液膜生长及流动和残气凝固三个阶段。针对各阶段建立了相应的数学模型。A theoretical study of the multi-phase flow and heat mass transfer processwith the presence of a non-condensible gas, N,, in a cryogenic PH3 trapper is carried out. Bycareful analysis the process should be divided into three periods: sublimation, condensation,flow and solidification. Mathematical models for each period were developed.

关 键 词：凝华 凝结 凝固 相变流动 低温捕集器 传热 传质 

分 类 号：TB657.9[一般工业技术—制冷工程]