混合动力机车电池组液冷板流道结构选型研究  

Selection of flow channel structure of liquid cooling plate for hybrid locomotive battery pack

作　　者：唐怀宇 邓纪辰 韩亮 崔洪江[1] TANG Huaiyu;DENG Jichen;HAN Liang;CUI Hongjiang(School of Locomotive and Rolling Stock Engineering,Dalian Jiaotong University,Dalian 116028,China;CRRC Dalian Co.,Ltd.,Dalian 116022,China)

机构地区：[1]大连交通大学机车车辆工程学院,辽宁大连116028 [2]中车大连机车车辆有限公司,辽宁大连116022

出　　处：《电力机车与城轨车辆》2024年第3期38-44,共7页Electric Locomotives & Mass Transit Vehicles

基　　金：辽宁省教育厅基本科研项目(LJKFZ20220203)。

摘　　要：为了选出混合动力机车电池组液冷板的最优流道结构,文章结合电池组液冷原理提出了4种流道结构模型,并在环境温度35℃、冷却液进口速度2 L/min和进口温度25℃的条件下,进行热仿真分析。通过对比分析发现,随着并行流道数量的增加,电池组的平均温度、最高温度、最大温差均呈上升趋势,冷却液的进出口压差均呈下降趋势。综合评价指标及冷却液流速情况,两并行流道被确定为该电池组最适配的液冷板流道结构。In order to screen out the optimal flow channel structure of the liquid cooling plate for the hybrid locomotive battery pack,four flow channel structure models are proposed based on the liquid cooling principle of battery pack.Under the conditions of ambient temperature of 35℃,coolant inlet speed of 2 L/min,and inlet temperature of 25℃,thermal simulation analysis is conducted on different flow channels.Through comparative analysis,it is concluded that with the increase of the number of parallel flow channels structure,the average temperature,maximum temperature and maximum temperature difference of the battery pack all tend to increase,while the inlet and outlet pressure difference of the coolant all tend to decrease.Combining the evaluation indexes and the coolant flow rate,the structure with two parallel flow channels is determined as the most suitable liquid cooling plate flow channel structure for the battery pack.

关 键 词：液冷板 流道结构 混合动力机车 电池组 仿真分析 

分 类 号：U267[机械工程—车辆工程]