Refrigerating system comprising flash tank and oil cooler

The invention belongs to the technical field of refrigeration equipment, and particularly relates to a refrigeration system comprising a flash tank and an oil cooler, the refrigeration system comprises a compressor, an oil separator, an evaporator, a condenser and the oil cooler, the refrigeration system further comprises the flash tank, and a gaseous refrigerant outlet of the flash tank is communicated with a compressor air supply port of the compressor through a gaseous refrigerant pipeline; a first liquid refrigerant outlet of the flash evaporator is communicated with an evaporator liquid inlet of the evaporator through an evaporator liquid supply pipeline, and a second liquid refrigerant outlet of the flash evaporator is communicated with an oil cooling liquid inlet of the oil cooling device through an oil cooling liquid supply pipeline; a liquid refrigerant inlet of the flash evaporator is communicated with a condenser liquid outlet of the condenser through a liquid refrigerant inlet pipeline, and a gas-