摘要
冻结技术是保证食品品质的最佳方式之一。食品的冻结品质与速冻机内部流场直接相关。均匀的流场能优化速冻设备的性能,提高食品冻结品质。文章从速冻设备入口结构和通道结构2个角度出发,综述了孔板结构、射流冲击、通道形状和导流技术对速冻设备内部流场的影响。这些方案主要在保证速冻设备内部流场均匀性的前提下,增加通道内气流的平均速度,增强传热效果,为今后优化设计速冻设备、保障冻结食品品质提供了一定的理论支撑。
Freezing technology is one of the most promising methods to keep the quality of food.The quality of frozen food is directly related to the internal flow field in a quick freezing equipment.The performance of freezers can be optimized by uniform flow field,and the quality of frozen food can be improved.The effects of orifice plate structure,jet impingement,channel shape and flow guiding technique on the flow field of the quick freezing equipment are summarized from 2 aspects of the inlet structure and channel structure.These programs are mainly in the premise of ensuring the uniformity of the flow field of freezers,to increase the average velocity and enhance heat transfer,which would be a useful method to design the structure of quick-freezing equipment and ensure the quality of freezing food in the future.
作者
王广夫
赵楠
李琛
WANG Guangfu;ZHAO Nan;LI Chen(First Military Representative Office of Shenyang Bureau in Dalian area of the Naval Equipment Department,Liaoning Dalian 116001,China;Eighth Military Representative Office of Shanghai Bureau in Shanghai area of the Naval Equipment Department,Shanghai 200011,China)
出处
《机电设备》
2020年第6期79-84,共6页
Mechanical and Electrical Equipment
关键词
速冻设备
内部流场
均匀性
优化
quick-freezing equipment
internal flow field
uniformity
optimization
