Efficient automatic de-icing system

Abstract

The invention discloses an efficient automatic de-icing system. The system comprises an ice making mechanism, a low-temperature secondary refrigerant mechanism, a high-temperature secondary refrigerant mechanism and an ice-making and de-icing mechanism, wherein the ice making mechanism can provide cooling capacity and heat for the low-temperature secondary refrigerant mechanism and the high-temperature secondary refrigerant mechanism so as to carry out ice making or de-icing, the low-temperature secondary refrigerant mechanism and the high-temperature secondary refrigerant mechanism are used for supplying cooling capacity and heat generated by heat exchange to the ice-making and de-icing mechanism for ice making or de-icing through a secondary refrigerant, and the ice making mechanism comprises a compressor, a shock absorbing pipe, an oil extractor, a condenser, a refrigerant flowing-into liquid storage tank, a drying filter, a liquid tube electromagnetic valve, an expansion valve andan air return filter, wherein the drying filter, the liquid tube electromagnetic valve and the expansion valve communicate with the refrigerant flowing-into liquid storage tank in sequence, and the air return filter is connected with the compressor. The efficient automatic de-icing system has the beneficial effects that a sealing strip is long in service life and good in sealing, the thickness ofmade ice is uniform, system operation is stable, no liquid impact and no oil throwing exist in de-icing and secondary ice making, energy consumption is reduced, assembling is convenient, and the costis saved.

Description

technical field [0001] The invention belongs to the field of ice making equipment, in particular to an efficient automatic deicing system. Background technique [0002] At present, the automatic deicing machines on the market mainly have the following problems in the production process, the water sealing effect of the aluminum ice mold is poor, and the service life is not long; moreover, the ice made by the aluminum ice mold has uneven ice thickness in different parts , the system is unstable. During the de-icing process and the second ice-making process, the unit is prone to liquid shock and oil throwing. The above-mentioned "liquid hammer" phenomenon mainly occurs in the compressor, because the refrigerant liquid (or lubricating oil) is sucked by the compressor, when the liquid refrigerant (or lubricating oil) is sucked through the suction valve plate, due to the flow of the liquid The kinetic energy is greater than the kinetic energy of gas, so the impact force of the s...

AI Technical Summary

Problems solved by technology

The unstable operation of the system is due to adverse phenomena such as oil throwing and liquid shock of the compressor, which will lead to unstable operation of the system

In addition, the fluorine pipes in the existing automatic deicer system are complex, the refrigerant charge is large, the local resistance and resistance along the pipeline are large, and the cooling capacity loss of the pipeline is large, which affects the efficiency of the unit

The aluminum plate evaporator of the ordinary automatic deicing machine is under high pressure when it is in the deicing state, and the thickness of the aluminum plate evaporator is required to be high. As the thickness becomes thicker, the thermal conductivity and thermal resistance become larger, and the heat transfer effect is poor, which is not conducive to energy saving and also causes rising material costs

The waste heat of the exhaust gas during normal automatic deicing refrigeration and the cooling capacity of the evaporator during deicing are almost wasted, which is not conducive to saving energy.

The existing ordinary automatic deicing equipment also uses the evaporator to cool the liquid medium during deicing to avoid wasting cooling capacity, but this design method has disadvantages. If the liquid medium is water, the refrigerant temperature is relatively low during deicing , the water for heat exchange and cooling is easy to freeze, causing the heat exchanger to swell or freeze, and damage the equipment; if the liquid medium is a refrigerant, the water is cooled by the refrigerant, which can be avoided Heat exchanger bulges and freezes, but equipment becomes overly complex

Ordinary automatic deicers are equipped with multiple expansion valves, and each group of evaporators needs to be equipped with an expansion valve. Different adjustments need to be made during the test process. The amount of debugging is large and the production is inconvenient.

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