Tool and method for measuring flow resistance of certain type of oil filter

Abstract

The invention belongs to the technical field of oil filter detection. The invention relates to a tool and a method for measuring flow resistance of a certain type of oil filter. The tool comprises a connecting pipe and a fixing flange fixed to the outer wall of one end of the connecting pipe, a conveying pipe is fixedly connected to the inner wall of the fixing flange; a flow meter, a measuring pipe and a pressure transmitter are sequentially connected to the side, away from the connecting pipe, of the fixing flange in series, wherein the flow meter, the measuring pipe and the pressure transmitter are connected with the conveying pipe in series. The method includes steps of: when the oil filter is not installed, detection is carried out to acquire the flow and the pressure of a measuring medium in the measuring tube; then the detected oil filter is in threaded connection with the oil filter joint, and the detection is carried out again; the flow resistance value of the oil filter to bedetected can be measured by comparing the pressure difference value of the oil filter without the oil filter with the pressure difference value of the oil filter with the oil filter, and the corresponding oil filter can be selected according to the required flow resistance value when a person installs the oil filter, so that the installation efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of oil filter detection, and in particular relates to a tool and a method for measuring a certain type of oil filter flow resistance. Background technique [0002] Oil filter is generally the abbreviation of gasoline filter for small cars. The main function of the gasoline filter is to filter out impurities in gasoline. Under the action of the gasoline pump, the fuel enters the sedimentation cup of the filter through the oil inlet pipe. As the volume becomes larger and the flow rate becomes smaller at this time, water and impurity particles heavier than oil settle at the bottom of the cup, light impurities flow to the filter element with the fuel, and clean fuel seeps into the filter element from the micropores of the filter element, and then Flowing out through the oil pipe, because the existing oil filter in the main pipe after vacuum brazing is completed, the flow resistance of the same oil filter under h...

AI Technical Summary

Problems solved by technology

As the volume becomes larger and the flow rate becomes smaller at this time, water and impurity particles heavier than oil settle at the bottom of the cup, light impurities flow to the filter element with the fuel, and clean fuel seeps into the filter element from the micropores of the filter element, and then Flowing out through the oil pipe, because the existing oil filter in the main pipe after vacuum brazing is completed, the flow resistance of the same oil filter under high pressure is different, resulting in unstable data of the product in the main pipe, which affects the final acceptance

[0003] At present, for this problem, since the client cannot specify a suitable plan to determine the impact of the oil filter on the main pipe test, it is necessary to replace the oil filter in the main pipe several times until the flow resistance of the replaced oil filter meets the specified requirements, and it cannot be replaced at one time. In place, the time for replacement and inspection is longer, which leads to an increase in the overall installation and commissioning time of the equipment, and delays the progress of equipment installation and delivery

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