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小型冷库制冷工艺设计根据食品工艺要求往往需二个以上蒸发温度,如何保证冷库在工艺设计上既能满足食品工艺的温度要求,又使工艺系统简单,节约费用,节约能源,是值得探讨的问题。我们在设计中采用了以下处理方法,现分述如下: 一、采用带中间负荷的双级系统 1.活塞式单级压缩要满足-28℃以下蒸发温度(特别南方)其压缩比大于8,
Small cold storage refrigeration process design often requires two or more evaporation temperatures according to the requirements of the food process. How to ensure that the cold storage can not only meet the temperature requirements of the food process in process design, but also make the process system simple, save the cost and save energy is a problem worth exploring . We used in the design of the following treatment methods are as follows: First, the use of intermediate load with a two-stage system 1. Piston single-stage compression to meet the evaporation temperature below -28 ℃ (especially the south) its compression ratio greater than 8,