Detection method for impurities in receiver drier

Abstract

The invention provides a detection method for impurities in a receiver drier and relates to a detection method for a receiver drier of an automobile air-conditioning system. The method comprises the following steps: A, preparation work; B, preparation of gas, wherein, clean compressed dry gas with a pressure of 1.0 MPa is prepared; C, air blowing, wherein, the clean compressed dry gas with a pressure of 1.0 MPa is continuously blown into the receiver drier; D, removal of impurities, wherein, impurities in the receiver drier enter into an impurity collector through a pipeline B as the compressed dry gas flows; E, discharge of the gas and collection of the impurities, wherein, the compressed dry gas is discharged through a pipeline C, and the impurities are obstructed by a filter layer of the impurity collector and retain in the impurity collector; F, weighing, wherein, the weight of the impurity collector that contains the impurities is measured by using a weighing means, and the content of the impurities can be obtained. According to the invention, the content of the impurities in the receiver drier can be accurately and effectively detected; the method is simple and convenient to operate; high cleanliness of components of an automobile air conditioner can be guaranteed, and therefore, faults like obstruction of the air-conditioning system can be avoided.

Description

technical field [0001] The invention relates to a detection method for a liquid storage drier of an automobile air-conditioning system, in particular to a detection method for impurities in a liquid storage drier. Background technique [0002] The liquid storage dryer is the core component of the automobile air conditioning system, which plays the role of drying and storing liquid in the air conditioning system, and also plays the auxiliary role of filtering and connecting the air conditioning pipeline. For automotive air conditioning systems, the cleanliness requirements for automotive air conditioning components are very high. If the content of impurities in the air conditioning system is too high, it will cause blockage of the air conditioning system; for the liquid storage dryer, the storage liquid is dry There are two kinds of iron bottles and aluminum bottles; the two kinds of liquid storage drier need to carry out welding (brazing, argon arc welding), machining and ot...

AI Technical Summary

Problems solved by technology

There are certain defects in this test method, and it cannot be operated in actual testing. The reasons are as follows: For the schematic diagram of the storage drier, see Figure 4 , due to the structure of the liquid storage drier, the isooctane solvent poured into the liquid storage drier cannot be poured out after 4 to 5 shakes, and the impurity content cannot be detected

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