大量的热通过冷藏库的四壁、顶部和底部而渗入冷间內部,抵销这种热所需要的耗冷量,依冷藏库的种类而不同。如生产性冷藏库,相当于制冷设备全部能力的10—15％;分配性冷藏库为60～70％。如果冷藏库隔热层很厚(造价就很高),则渗入冷藏库内的热量就少,制冷设备就可以少些,购置费就低,电力和润滑材料等的消耗量也将减少。反之,如果隔热材料差 A large amount of heat penetrates into the interior of the cold compartment through the four walls, the top and the bottom of the refrigerator, and the amount of cooling required to offset this heat varies depending on the type of the refrigerator. Such as the production of cold storage, refrigeration equipment equivalent to the full capacity of 10-15%; distribution of cold storage for 60 to 70%. If the insulation in the refrigerator is thick (the cost is high), there is less heat infiltration into the refrigerator, cooler refrigeration equipment, lower acquisition costs and less consumption of electricity and lubricants. Conversely, if the insulation material is poor