1, the operation personnel into the cold storage for artificial defrosting, this kind of defrosting method can ensure that the ground frost does not dissolve and is combed, in the defrosting of air conditioning evaporator can be normal application, this kind of defrosting method needs staff to work in the cold storage, immediately enhance the refrigeration capacity in the cold storage, the demand for a certain amount of labor costs.

2. The nozzle head system can be used in the air conditioning evaporator to spray working pressure water to the frosting position to carry out defrosting. The method of tap water defrosting is simple in practice and can complete the automatic control system, but this method consumes electricity and water, and needs to be applied in contact with the hot flow defrosting. When the heat flow defrosting is applied, the refrigerant inside the air conditioning evaporator needs to be discharged and cleaned first, and then the machine and equipment defrosting is solved.

3. The common method of defrosting in cold storage should be defrosting with electric heater, which is generally used in the cool air machine with finned tube radiator. The electric heating material system is on the plate fin type. This method is simple to operate, high defrosting efficiency, the disadvantage is high energy consumption.