air conditioner

Abstract

The invention discloses an air conditioner, comprising: a compressor, the compressor has an exhaust port and an air return port; The liquid phase area below the area; the condenser, the first end of the condenser is connected with the exhaust port, and there is a second gas phase area in the condenser; the liquid storage tank, the liquid storage tank has a liquid intake port, a gas outlet, a high pressure inlet and a return The oil port and the liquid intake port are connected to the liquid phase area through the liquid intake line, the oil return port is connected to the oil pool of the compressor through the oil return line, and the high-pressure inlet is connected to the exhaust port through the exhaust line to flow into the liquid storage tank. The high temperature and high pressure gaseous refrigerant is discharged, and the gas outlet is connected with the gas return port through the gas return pipeline; the control device. According to the air conditioner of the present invention, continuous liquid extraction can be realized, and high-purity lubricating oil can be obtained without setting a Venturi ejector.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner. Background technique [0002] In the prior art, a Venturi ejector and a purification tank are generally used to form the oil return system of the refrigeration unit. The Venturi ejector has a very small throat, which is easily blocked by foreign matter and difficult to clean after being blocked. Generally, it needs to be replaced as a whole, which increases the cost. Moreover, this oil return system has a poor separation effect on the refrigerant and the lubricating oil, and there is still a large amount of refrigerant in the purified lubricating oil, which affects the temperature and viscosity of the lubricating oil in the compressor oil tank. In addition, in the oil return process of this oil return system, the liquid extraction stage, the extraction stage and the oil return stage are carried out simultaneously, and it is impossible to individually...

AI Technical Summary

Problems solved by technology

The Venturi ejector has a very small throat, which is easily blocked by foreign matter and difficult to clean after being blocked. Generally, it needs to be replaced as a whole, which increases the cost

Moreover, this oil return system does not have a good separation effect on the refrigerant and lubricating oil. There is still a large amount of refrigerant in the purified lubricating oil, which affects the temperature and viscosity of the lubricating oil in the compressor oil tank.

In addition, in the oil return process of this oil return system, the liquid extraction stage, the extraction stage and the oil return stage are carried out at the same time, and it is impossible to individually control a certain stage of the oil return process according to the oil return demand of the refrigeration unit

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