冷库运行不同时段温度变化过程分析  

The analysis of varying temperature at different periods of cold storage

作　　者：姜道珠[1] 鲁墨森[2] 鲁荣 刘晓辉[4] 

机构地区：[1]山东理工大学农业工程与食品科学学院,山东淄博255049 [2]山东省果树研究所贮藏加工室,山东泰安271000 [3]一新保鲜设备厂,山东泰安271000 [4]天津大学化工学院,天津300073

出　　处：《郑州轻工业学院学报（自然科学版）》2012年第4期26-29,共4页Journal of Zhengzhou University of Light Industry:Natural Science

基　　金：山东省科学技术发展计划项目(2008CG10009038);山东省农业科学院创新基金(2007YCX025)

摘　　要：针对冷库运行过程中停机阶段、风机运行阶段、制冷机运行阶段的各点温度变化,采用热镀锡膜铜-康铜热电偶分别测量了3个阶段的库温、果品温度、冷风机进风口和出风口温度及冷风机蒸发器的温度,并对测点的温度场进行了分析.结果表明:果品温度在3个阶段基本恒定在1.8℃;在风机运行阶段蒸发器仍然是冷源;在制冷机运行阶段,蒸发器进出口温差增大,蒸发器温度下降,说明制冷效果良好.In order to study every changing temperature point of stop stage and fan operation stage and chil- ler operation stage, the hot tin copper-constantan thermocouple was used to measure respectively the storage temperature, fruit product temperature, air cooler inlet and outlet temperature, cooling fan evaporator＇ s tem- perature. These data were analyzed and the results showed that：fruit product temperature was almost con- stant at 1.8 ℃ at three phases. In fan operation stage, evaporator was still cold source. In chiller operation stage, the temperature difference of evaporator import and export increased, and the evaporator temperature dropped, which indicates good cooling effect.

关 键 词：冷库 温度场 铜-康铜热电偶 

分 类 号：TB657.1[一般工业技术—制冷工程]