| 摘要: |
| 为研究2~8℃小型疫苗冷库内部温度场情况并优化热性能，本文以江苏省疾病预防控制中心一座20 m3疫苗冷库为研究对象，在不同工况下分别对其稳态温度场和库门呈30°或90°开启60s后的非稳态温度场进行实测，通过建立数学模型对冷库,结构进行了模拟优化，同时对冷库在测量时间段内和稳定运行时刻的制冷效果和冷库温度场均匀性等评价指标进行系统分析。结果表明:对于小型疫苗冷库，当长度L≥宽度W时，在L方向上布置两台制冷量适当的冷风机为最优布置方案，随着长宽比的降低，库内不均匀系数将更趋于理想状态，且当L＝W 时，疫苗冷库为最优结构；考虑开门影响，应规范疫苗箱摆放位置，库内疫苗箱距库门1.5ｍ范围内堆放高度建议不超过1.5ｍ整体堆放高度建议不超过1.8m。 |
| 关键词: 冷库 疫苗储存 热性能 温度场 |
| DOI： |
| 投稿时间：2020-05-28 修订日期：2020-08-12
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| 基金项目:本文受江苏省研究生科研创新计划项目(KYCX20_1259),镇江市重点研发计划项目(GY2019025),江苏省研究生工作站——江苏北洋冷链设备科技有限公司泰州市科技支撑计划(农业)项目(TN201805),江苏省第十六批“六大人才高峰”高层次人才选拔培养项目(JNHB-249)资助。 |
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| Experimental and Simulation Study on Thermal Performance of Small-volume Vaccine Cold Storage at 2–8 ℃ |
| Zhang Haoyue,Zhang Zhongbin,Go Chenghua,Wang Wei |
| (School of Energy and Mechanical Engineering, Nanjing Normal University;Jiangsu Provincial Center for Disease Control and Prevention) |
| Abstract: |
| To optimize the thermal performance of small-volume vaccine cold storage, a 20 m3vaccine cold storage with a working temperature of 2–8 ℃ belonging to the Jiangsu Province CDC was investigated. Steady temperature fields under different working conditions and unsteady temperature fields 60 s after opening the door at opening angles of 30°or 90°were measured. By establishing a mathematical model, the structure of cold storage was simulated, and the optimized refrigeration effect and temperature field uniformity in cold storage were systematically analyzed considering both the measurement period and stable running time; in addition, the existing evaluation indexes were extended in the evaluation. The results show that when the length L≥width W, the optimal arrangement scheme for the small-volume vaccine cold storage is two air coolers with proper refrigerating capacity located in the L direction. When L=W, the vaccine cold storage is the optimal structure. Considering the influence of door opening, the positions of the vaccine boxes should be given sufficient attention. It is suggested that the stacking height of vaccine boxes be kept within 1.5 m, the distance from the doorway should be within 1.5 m, and the overall stacking height should not exceed 1.8 m. |
| Key words: cold storage vaccine storage thermal performance temperature field |
