Oil separator, control method of oil separator and air conditioning unit

Abstract

The invention provides an oil separator, a control method of the oil separator and an air conditioning unit. The oil separator comprises an oil separation barrel, an oil separation assembly and a heating assembly; the oil separation barrel is provided with a gas inlet and a gas outlet, and the oil separation assembly is arranged in the oil separation barrel and used for separating a gas-oil mixture entering from the gas inlet; the heating assembly is arranged on the oil separation assembly and used for heating the gas-oil mixture. According to the technical scheme, in the gas-oil mixture separation process, if the exhaust temperature of a compressor is too low, the gas-oil mixture in the separation process can be heated through the heating assembly, the temperature of the gas-oil mixture is increased, a liquid refrigerant in the gas-oil mixture is evaporated, the emulsified refrigerant oil content is effectively reduced, and oil and gas can be separated in production. meanwhile, the problem that a refrigerant easily carries lubricating oil and deposits in the oil separation barrel at a low exhaust temperature can be effectively avoided, so that the oil separation efficiency is improved, and normal oil supply of the unit is guaranteed.

Description

technical field [0001] The invention relates to the technical field of air-conditioning components, in particular to an oil separator, a control method thereof, and an air-conditioning unit. Background technique [0002] No matter the existing oil separator adopts two-stage or three-stage oil separator, its separation efficiency is based on the normal exhaust temperature. When the exhaust gas temperature of the compressor drops due to suction liquid or low condensation temperature, it will easily lead to the emulsification of the refrigerator oil in the exhaust gas to produce an emulsified mixture. The main components of the emulsified mixture are liquid refrigerant and lubricating oil. [0003] The above-mentioned emulsified mixture, due to the presence of liquid refrigerant components, will make it difficult for the oil separator to separate the refrigerated oil through the oil, which will greatly reduce the oil separation efficiency of the oil separator, resulting in insu...

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Problems solved by technology

[0004] The embodiment of the present invention provides an oil separator and its control method and air conditioning unit to solve the technical problem that the oil separator in the prior art cannot effectively separate the low-temperature oil-gas mixture

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