空温式深冷翅片管气化器表面结霜特性实验研究  

Experiment on Frost Characteristic of Air-warmed Cryogenic Finned-tube Vaporizer

作　　者：陈叔平[1] 来进琳[1] 殷劲松 赖永才 王炫松[3] 

机构地区：[1]兰州理工大学石油化工学院,兰州730050 [2]张家港富瑞特种装备股份有限公司,张家港215637 [3]甘肃蓝科石化高新装备股份有限公司,兰州730050

出　　处：《制冷学报》2010年第4期26-30,共5页Journal of Refrigeration

基　　金：国家863计划(2008AA11A132)资助项目~~

摘　　要：空温式深冷翅片管气化器实际使用中,表面往往会结霜,影响传热效果。由于结霜过程的非稳态性,理论分析较为困难。这里以液氩为工作介质对气化器结霜过程进行了实验,获取了一些数据。根据实验数据拟合了翅片管表面非稳态的结霜厚度和沿管长方向的结霜速度的多项式,多项式在霜层生长稳定期的计算结果和实验结果均方误差小于23%。表明通过反复实验,不断完善数据,可以使拟合结果具有更好的适用性,也为工程设计提供指导。Frost usually forms on the surface of air-warmed cryogenic finned-tube vaporizers in practical application, resulting in unfavorable influence on heat transfer. It is difficult to perform the theoretical analysis on the unstable frosting process. In our study, the experiment was conducted to obtain the data in the frosting process of a vaporizer with liquid argon as the working medium. The polynomials of frost thickness and distribution along the finned-tubes in unsteady-state were achieved from the experimental data. The mean-square error between the calculation results by the polynomials and the experimental data was lower than 23% for the stable frost growing.

关 键 词：热工学 空温式翅片管气化器结霜特性 实验研究 深冷 

分 类 号：TB611[一般工业技术—制冷工程] TB657.5