A low water pressure tightness test method and system for a high water pressure solenoid valve

Abstract

A method and system for testing the low water pressure tightness of a high water pressure solenoid valve, comprising: connecting the high water pressure solenoid valve to be tested to a straight-through valve of a water tank through a first water pipe, The water outlet is connected to a needle or thin tube with an inner diameter of no more than 1.5mm through the second water pipe; water is injected into the water tank, and the height of the water surface from the straight-through valve is not less than 70mm and not higher than 330mm; open the high water pressure solenoid valve and open the straight-through valve, Close the high water pressure solenoid valve after the water flow drains the air in the pipeline between the through valve and the needle or thin tube; open the high water pressure solenoid valve for the first preset time, then close the high water pressure solenoid valve for the second Preset duration, repeatedly turn on and off the high water pressure solenoid valve for a preset number of times; then turn on and off the high water pressure solenoid valve once and collect the water dripping from the needle or thin tube in the closed state; the measurement is collected from the needle or thin tube The water volume of the water is used to judge the low water pressure sealing performance of the high water pressure solenoid valve, and realize the low water pressure tightness test.

Description

technical field [0001] The invention relates to the technical field of sealing performance testing of high water pressure solenoid valves, in particular to a method and system for testing low water pressure sealing performance of high water pressure solenoid valves. Background technique [0002] At present, there are relatively mature standards to detect whether the high water pressure solenoid valve in the water purification product can work normally under high water pressure. The light industry standard (QB) QB / T1291-1991 for the water inlet solenoid valve for automatic washing machines The standards for high water pressure solenoid valves are stipulated in the standard. The water inlet solenoid valves for automatic washing machines can be tested for their tightness under high pressure conditions through water pressure resistance and durability tests. The testing process and standards are quite complete. However, there is no specific test method and system for whether the ...

AI Technical Summary

Problems solved by technology

However, there is no specific test method and system for whether the high water pressure solenoid valve can work normally in the low water pressure state and whether there is water leakage. Under the pressure state, water leakage occurs due to its own process structure and other problems, which will cause trouble for users to use water, and even cause certain property losses.

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