主被动双模式冷藏集装箱设计及箱内环境特性分析  

Design of active and passive dual modes refrigerated container and analysis of environmental characteristics in the container

作　　者：任晓芬 张蕾 童山虎 折晓会 李晨旭 REN Xiaofen;ZHANG Lei;TONG Shanhu;SHE Xiaohui;LI Chenxu(School of Mechanical Engineering Shijiazhuang Railway University,Shijiazhuang,Hebei 050043,China;School of Energy and Environment Engineering,Hebei University of Technology,Handan,Hebei 056038,China;CRRC Shijiazhuang Vehicle Co.,Ltd.,Shijiazhuang,Hebei 051430,China)

机构地区：[1]石家庄铁道大学机械工程学院,河北石家庄050043 [2]河北工程大学能源与环境工程学院,河北邯郸056038 [3]中车石家庄车辆有限公司,河北石家庄051430

出　　处：《食品与机械》2024年第9期92-98,共7页Food and Machinery

基　　金：河北省优秀青年科学基金项目(编号:E2022210022);石家庄市重大科技专项(编号:236260237A)。

摘　　要：[目的]提高冷链运输装备分析主被动双模式对冷链集装箱箱内环境分布特性的影响。[方法]提出一种集制冷机组、纤维送风管道、相变蓄冷板于一体的主被动双模式冷藏集装箱(控温区间为-1~10℃),该系统利用被动释冷模式运行,箱内空气温度>10℃时切换为主动释冷模式运行,对箱体数值进行模拟研究,并分析箱内环境分布特性。[结果]主被动双模式箱内速度分布均匀,气流可送达箱内各处;主动释冷模式温度分布均匀,箱内温度梯度较小,最大温差仅为0.3℃,被动释冷模式箱内温度梯度略大,且温度不均匀性高于主动释冷模式;与单独采用被动制冷模式相比,主被动双模式可有效保证10℃以下温区长时运输,有利于大多数新鲜货物冷藏运输。[结论]主被动双模式冷链集装箱设计具有较大的能源优化潜力,且流场均匀、温度稳定并具有较强的实用价值。[Objective]Improved cold chain transportation equipment and analyzed the impact of active and passive dual modes on the environmental distribution characteristics inside cold chain containers.[Methods]An active and passive dual-mode refrigerated container(temperature control range is-1~10℃)was proposed,which integrated refrigeration unit,fiber air supply pipe and phase-change cold storage plate.The system operated in passive cooling mode,and switched to active cooling mode when the air temperature inside the box was greater than 10℃.[Results]The results showed that the velocity distribution in the active and passive dual mode box was uniform,and the air flow could reach all parts of the box.The temperature distribution in the active release mode was uniform,the temperature gradient in the box was small,and the maximum temperature difference was only 0.3℃.The temperature gradient in the passive release mode was slightly larger and the temperature non-uniformity was higher than the active release mode.Compared with the passive refrigeration mode alone,the active and passive dual mode could effectively ensure the long-term transportation of the temperature zone below 10℃,which was conducive to the refrigerated transportation of most fresh goods.[Conclusion]The design of active and passive dual-mode cold chain container has great potential for energy optimization,uniform flow field,stable temperature and strong practical value.

关 键 词：主被动双模式 冷藏集装箱设计 速度场 温度场 保冷效果 

分 类 号：TS205.7[轻工技术与工程—食品科学]