Refrigerating system

Abstract

The invention discloses a refrigerating system. The refrigerating system comprises a refrigerating system body and an electric control system. The refrigerating system body comprises a constant-speed compressor, electromagnetic valves, two or more cold storage cabinets and throttling devices. The electric control system comprises electromagnetic valves, relays and temperature controllers. The one-to-more refrigerating mode that the constant-speed compressor is used for independently controlling the cold storage cabinets with different refrigerant quantity demands is adopted, the refrigerant supply requirement of the cold storage cabinet with the small refrigerant quantity demand can be met under the condition that the cold storage cabinet with the small refrigerant quantity demand is opened only, and the situation that the body of the constant-speed compressor is frosted due to incomplete indoor evaporation, and consequentially the life of the constant-speed compressor is shortened is avoided; and meanwhile, the return air quantity required when the constant-speed compressor operates can be provided, so that the heat exchange effects of all evaporators are brought into full play, energy consumption is reduced, and the energy saving effect is achieved.

Description

technical field [0001] The invention relates to the field of refrigeration systems, in particular to a one-to-multiple refrigeration system suitable for constant-speed compressors. Background technique [0002] The common one-to-multiple refrigeration systems on the market are mainly realized by variable capacity compressors. Basically, fixed-speed compressors are not used to realize one-to-multiple refrigeration systems, and fixed-speed compressors are used to realize conventional one-to-multiple refrigeration systems. When the indoor load demand is small, that is, when the indoor evaporation is small, if the refrigeration system guarantees the liquid supply required for the operation of the fixed-speed compressor, the indoor evaporation will not be complete, and the body of the fixed-speed compressor will be frosted, thereby The lubricating effect of the refrigeration oil in the fixed-speed compressor will be deteriorated, which will affect the service life of the fixed-sp...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a refrigeration system, which uses a fixed-speed compressor to independently control two or more refrigeration cabinets with different coolant requirements. In the case of the first refrigerated cabinet with a small demand for coolant, the coolant supply demand for the first refrigerated cabinet will be met, and there will be no incomplete evaporation in the room that will cause frost on the body of the fixed-speed compressor and reduce the speed of the fixed-speed compressor. At the same time, it can meet the return air volume required by the fixed-speed compressor when it is running, so that the heat exchange effect of each evaporator can be fully utilized, reducing energy consumption and saving energy.

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