冷藏库作为食品低温流通的中枢,近年来在我国得到了显著的发展,不仅建库的规模和容量增大,还表现在建库技术上的现代化,如土建结构的予制装配化,货物堆垛输送的机械化,管理与控制的自动化等。就制冷工艺来说,对所用制冷剂的种类、冷冻机和库内冷却设备的型式也都有了若干变革,但在制冷系统设计方面,国外的发展趋势如何,自然引起了我 Cold storage, as the hub of low temperature circulation of food, has made remarkable progress in our country in recent years. It not only increases the scale and capacity of the database, but also shows the technical modernization of the database. For example, prefabrication of civil engineering structures, Mechanized handling, management and control automation. As far as the refrigeration process is concerned, there have been some changes in the types of refrigerants used, types of refrigerators and in-store cooling equipment. However, in terms of the design of refrigeration systems, what are the development trends in foreign countries, which naturally aroused me