| 摘要: |
| 本文提出了一种射流泵节流供液制冷系统（方式III），并与传统的热力膨胀阀供液（方式I）和液泵供液（方式II）进行了实验对比，研究了三种供液方式对模拟食品的冻结时间、冻品温差和冻结装置总能耗的影响。结果表明，在本文的实验条件下，方式II和方式III比方式I的冻结时间缩短了约14%，模拟食品的温度下降更为均匀，有利于冻品质量的提高。在能耗方面，方式III比方式I节省了6.3%，比方式II节省了9.6%。因此，射流泵节流供液优势明显。 |
| 关键词: 供液方式 射流泵 冻结时间 冻品温差 能耗 |
| DOI： |
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| 基金项目:国家高技术研究发展计划（863计划，2012AA092301）资助项目。 |
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| Experimental Comparison of Three Liquid Supply System on Plate Freezer |
| Cao Xiaocheng,Wan Jinqing,Song Liyao,Li Jianguo,Wang Guoqiang |
| (College of Food Science and Technology, Shanghai Ocean University) |
| Abstract: |
| This paper proposes a type of ejector throttling refrigeration system (Mode III), and compares it with traditional thermal expansion valve (Mode I) and liquid pump for liquid (Mode II) through experiments. The effects of these three liquid supply modes on freezing time of food, freezing temperature difference and total energy consumption of freezer are studied experimentally. The results show that under the experimental conditions, the freezing time of Mode II & III is shorter by about 14% than Mode I, the falling of food’s temperature is more evenly, and it is good for enhancing the quality of food freezed. On the aspect of energy consumption, Mode III saves 6.3% than Mode I, and saves 9.6% than Mode II. Therefore, the advantages of liquid supply with ejector throttling are obvious. |
| Key words: liquid supply ejector freezing time freezing temperature difference energy consumption |
