Cold storage usage and management technology 1. Preparation for starting and starting the machine Before starting the machine, check whether the valves of the unit are in the normal state. Check whether the cooling water source is sufficient. After the power is turned on, set the temperature according to the requirements. The refrigeration system of the cold storage is generally controlled automatically, but the cooling water pump should be turned on for the first time, and the compressor should be started one by one after the normal operation. 2. Operation Management After the normal operation of the refrigeration system, pay attention to the following points: First, listen to whether the device has abnormal sound during operation; second, see if the temperature in the storage tank decreases; and third, check whether the exhaust heat and cooling are distinct or not. Cooling effect is normal. 3. Harvesting of fruits and vegetables and stacking requirements for storage The fruits and vegetables used for cold storage should be of good quality and harvested at an appropriate maturity. Without mechanical injury, the individual should be excluded from the examination and pre-cooling should be carried out as far as possible. And rinse. The refrigerated fruits and vegetables must be properly packaged and stacked in an orderly manner in the warehouse. There must be space between the purlins and purlins, purlins and the wall and the top, and the bottom is best to use an overhead cushion pad. Start so that air conditioning can be reached as soon as possible. The number of warehouses entering and leaving the warehouse should be controlled within 20% of the total storage capacity in order to avoid excessive fluctuations in warehouse temperature. 4. Ventilation and defrosting Fruits and vegetables will release some gases during storage. Accumulation to a certain degree will cause the collection to be physiologically degraded and deteriorate. Therefore, in the course of use, ventilation should be performed frequently. Generally, it should be done in the morning when the temperature is low. In addition, the evaporator will be covered with a layer of frost on the use of a period of time, not timely removal will affect the cooling effect, defrosting, cover the library collections, use a broom to sweep the accumulation of frost, be careful not knock hard.
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