通用集装箱隔热措施温度场仿真及特征分析  

Simulation and Characterization of Temperature Fields for General-Purpose Container Insulation Measures

作　　者：杨楠 尹芊蔚 YANG Nan;YIN Qianwei(Department of Technology and Information,China Railway Lanzhou Group Co.,Ltd.,Lanzhou 730000,Gansu,China;School of Traffic and Transportation,Lanzhou Jiaotong University,Lanzhou 730070,Gansu,China;Key Laboratory of Railway Industry on Plateau Railway Transportation Intelligent Management and Control,Lanzhou Jiaotong University,Lanzhou 730070,Gansu,China)

机构地区：[1]中国铁路兰州局集团有限公司科技和信息化部,甘肃兰州730000 [2]兰州交通大学交通运输学院,甘肃兰州730070 [3]兰州交通大学高原铁路运输智慧管控铁路行业重点实验室,甘肃兰州730070

出　　处：《铁道货运》2024年第7期53-62,共10页Railway Freight Transport

基　　金：中国铁路兰州局集团有限公司科技发展项目(LZJKY2023086-1)。

摘　　要：为了研究气候多变的西北地区环境下,环境-集装箱-货物间的温度场耦合关系,基于k-ε紊流模型,以20ft铁路通用集装箱为研究对象,建立其在高原环境下的对流-辐射耦合模型,运用流体仿真求解温度场分布特征。研究了在西北地区环境下轻质铝和聚丙烯塑料2种货物装载至通用集装箱内部温度场分布情况;其中聚丙烯塑料集装箱内部的温度变化较不均匀且高低温差略大,以聚丙烯塑料货物集装箱内部温度场分布特征情况为例,设计2种隔热方案。根据仿真结果,采用聚氨酯泡沫喷涂集装箱顶部和侧壁一定面积可以有效控温,从而为相似热物性的货物提供运输方案建议。To study the coupling relationship of temperature fields among environment,containers,and cargo in northwestern China where the climate is variable,a convection-radiation coupling model,based on the turbulence model,was constructed with a 20ft railway general-purpose container as the study object in the plateau environment.The fluid simulation was used to determine the distribution characteristics of the temperature fields.This paper analyzed the temperature field distribution of lightweight aluminum and polypropylene plastic cargo loaded into a general-purpose container under the environmental conditions of northwestern China.It was observed that the temperature change inside the polypropylene plastic container was uneven,with a moderately large difference between the highest and lowest temperatures.Two heat insulation schemes were designed,using the distribution characteristics of the temperature fields inside the polypropylene plastic container as an illustrative example.The simulation results indicate that the application of polyurethane foam to the top and side walls of the container can effectively control the temperature,providing strategies for transporting goods with similar thermal properties.

关 键 词：通用集装箱 高原环境 对流-辐射耦合 仿真模拟 温度场 

分 类 号：U294.3[交通运输工程—交通运输规划与管理]