蓄冷罐式冷板冷藏车厢设计及温度场分析  

Design of cold storage tank type cold plate refrigerated vehicle and its temperature field analysis

作　　者：沈向阳[1] 韦保光 肖杰文 陈嘉澍[1] Shen Xiangyang;Wei Baoguang;Xiao Jiewen;Chen Jiashu(College of Mechannical&Electrical Engineering,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,China)

机构地区：[1]仲恺农业工程学院,广州510225

出　　处：《低温与超导》2020年第6期87-92,共6页Cryogenics and Superconductivity

基　　金：广东省大学生创新创业训练计划项目(201811347053)资助。

摘　　要：针对机械式冷藏车和传统冷板冷藏车的缺点,设计蓄冷罐式冷板冷藏车厢,以提高蓄冷式冷藏车的蓄冷量,延长冷藏运输时间。通过计算冷藏车厢运载时的冷负荷,确定冷板尺寸及蓄冷罐容积等参数;建立蓄冷罐式冷板冷藏车厢模型,通过模拟得到冷藏车厢内温度场分布。结果表明,车厢底面隔热层厚度为90 mm时,车厢内货物温度可维持在281.15 K以内,车厢底部温度随运输时间增加逐渐升高,10 h时车厢底面货物温度升至283.75 K;当隔热层厚度增加至150 mm时,车厢底部温度随运输时间增加变化较小,10 h时车厢底面货物温度升至282.58 K。According to the shortcomings of mechanical refrigerated vehicle and cold plate refrigerated vehicle,a cold plate refrigerated vehicle with cold storage tank was designed to improve the cold storage capacity and extend refrigerated transportation time of cold plate refrigerated vehicle.The cooling load of refrigerated vehicle was calculated,and the size of cold plate and volume of cold storage tank could be determined.A model of cold plate refrigerated vehicle with cold storage tank was established,and obtained the temperature distribution through numerical simulation.The results show that when the thickness of insulation layer at the refrigerated vehicle bottom is 90 mm,the cargo temperature can be maintained within 281.15 K,and the temperature of refrigerated vehicle bottom increases with transportation time,then the cargo bottom temperature rises to 283.75 K at 10 hours.When the thickness of insulation layer raises to 150 mm,the temperature of refrigerated vehicle bottom little increases with transportation time,and the cargo bottom temperature rises to 282.58 K at 10 hours.

关 键 词：蓄冷罐 冷板冷藏车 温度场 隔热层 

分 类 号：TB657[一般工业技术—制冷工程]