Lossless vacuumizing cleaning machine for automobile air conditioner

Abstract

The invention discloses a lossless vacuumizing cleaning machine for an automobile air conditioner. The lossless vacuumizing cleaning machine is used for filling refrigeration oil in an automobile airconditioning system or cleaning. The lossless vacuumizing cleaning machine comprises a case, a control panel installed on the case, a treatment device arranged in the case, and an input pipeline and an output pipeline which penetrate through the interior of the treatment device, wherein the input pipeline inputs a refrigerant held in a liquid storage bucket into the automobile air conditioning system in a manner of a high pressure or a low pressure, and the refrigerant flowing through the automobile air conditioning system is recovered into the liquid storage bucket in the manner of a low pressure or a high pressure through the output pipeline. The lossless vacuumizing cleaning machine disclosed by the invention is high in refrigerant recovery speed and recovery efficiency, and capable ofachieving a cleanliness degree which cannot be achieved by common recovery; and moreover, zero loss of refrigerant gas during vacuumizing is realized, so that the loss of the refrigerant is reduced while environment is protected.

Description

technical field [0001] The invention relates to the technical field of cleaning equipment for automobile air conditioners, in particular to a non-destructive vacuuming cleaning machine for automobile air conditioners. Background technique [0002] Automobile air conditioners can set a comfortable temperature for the drivers and passengers in the car, and are widely used in various vehicles. After the automobile air conditioner is used for a period of time, impurities, water vapor, incompressible gases, etc. will be mixed into the air conditioner refrigerant, resulting in a decrease in the cooling efficiency of the air conditioner. , not even cooling, so regular maintenance is required. [0003] The patent document with application number 201420840548.2 discloses a refrigerant filling cleaning machine. Since the filling and cleaning system constitutes a circulation loop, it can regularly clean the automobile air conditioning system, and can choose high-pressure filling and lo...

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Problems solved by technology

[0004] 1. When recovering refrigerant gas, since the evaporation temperature of the refrigerant inside the automobile air conditioner gradually decreases, and the inlet pressure of the compressor used for recovery is 0 or lower than zero, the displacement of the compressor is close to 0, and the recovery The efficiency is extremely low, so there is still a large amount of residual refrigerant in the refrigerant inside the car air conditioner after recovery;

[0005] 2. When vacuuming the automobile air-conditioning system, the refrigerant gas inside will be discharged to the atmosphere through the vacuum pump, which will not only pollute the air, but also cause the loss of refrigerant

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