Air conditioning unit and method for increasing intake capacity of air conditioning unit

Abstract

The invention discloses an air conditioning unit and a method for increasing the intake capacity of the air conditioning unit. The air conditioning unit comprises a low-pressure valve, a high-pressure valve, a four-way valve, a heat exchanger, a compressor, a gas-liquid separator and a flash evaporator. The low-pressure valve is connected with the first end of the four-way valve. The second end of the four-way valve is connected with the third end of the four-way valve sequentially through the gas-liquid separator and the compressor. The fourth end of the four-way valve is connected with the high-pressure valve sequentially through the heat exchanger and the flash evaporator. The air conditioning unit further comprises a gas supplementing loop for supplementing gaseous refrigerants sent out by the flash evaporator in a flash manner into the compressor. According to the air conditioning unit and the method for increasing the intake capacity of the air conditioning unit, the gas supplementing loop is added, so that the refrigerant circulation amount can be increased, and the intake capacity of the compressor is increased; the low-temperature heating amount and the high-temperature cooling amount of the air conditioning unit are increased, and the user comfort experience is improved; and the air conditioning unit has the beneficial effects of being simple in structure and low in cost.

Description

technical field [0001] The invention relates to the field of air conditioning, in particular to an outdoor unit of an air conditioner and a method for increasing the air intake of the air conditioner unit. Background technique [0002] Insufficient high-temperature cooling capacity and low-temperature heating capacity have always been a stubborn problem of air conditioners. To increase the cooling / heating capacity of the unit, either increase the operating frequency of the compressor, or use a large-displacement compressor. Although the power of the compressor will increase rapidly after the frequency is increased, the energy efficiency will be greatly reduced, the noise will increase, and the long-term high-frequency operation of the compressor will have hidden dangers to the reliability of the whole machine. The use of a large displacement compressor will first increase the cost, and is limited by the casing of the external machine, so the structure is not easy to design. ...

AI Technical Summary

Problems solved by technology

Although the power of the compressor will increase rapidly after the frequency is increased, the energy efficiency will be greatly reduced, the noise will increase, and the long-term high-frequency operation of the compressor will have hidden dangers to the reliability of the whole machine.

However, the use of a large displacement compressor will first increase the cost, and the structure is not easy to design due to the limitation of the outer machine shell

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