文档介绍：非稳态下翅片管气化器霜层内温度分布数值研究1

谢福寿陈叔平姚淑婷韩宏茵常智新

(兰州理工大学石油化工学院,甘肃兰州 730050)

摘要为了分析非稳态下空温式翅片管气化器霜层内温度分布,采用数值模拟技术对多组
影响因素进行数值计算。通过指数模型和多元线性回归模型,拟合出非稳态下霜层内温度分
布关系式。结果表明该拟合关系式总体均方差小于 10%,其精度在工程计算要求范围内,
可用于工程计算。
关键字翅片管气化器温度分布数值模拟

A numerical study on the temperature distribution of unsteady frost layer
for finned-tube vaporizer

Xie Fushou Chen Shuping Yao Shuting Han Hongyin Chang Zhixin
( School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, 730050, China)

Abstract In order to analyze the temperature distribution of unsteady frost layer for finned-tube
vaporizer, numerical simulation technology was adopted to calculate several sets of influence
factors. Through index model and multivariate linear regression model, a formula of the
temperature distribution was fitted. The result shows that the overall mean square error of fitting
value is less than 10%. The fitting formula is sufficiently precise, and can be used in the field of
engineering calculation.
Key words Finned-tube vaporizer Temperature distribution Numerical simulation
作者简介:谢福寿, (1987- ),男,硕士
的设备,其结构如图 1 所示。由于具备结构
0 前言简单、运行成本低廉等优点广泛应用于低温
液体气化器、低温贮运设备自增压器等[1-2]。
空温式翅片管换热器是通过吸收外界但是,在实际应用中,低温工况下翅片管换
环境中的热量并传递给低温介质使其气化热器普遍存在结霜现象,考虑地区、温度和

基金项目:国家自然科学基金项目(51076061)
季节变化在内,各种气化器的结霜面积大约换热器在低温工况下的传热性能以及结霜
情况,进行了翅片管换热器的结霜试验。得
出了在不考虑环境风速的情况下