HPU liquid storage tank cleaning system and impurity detection method using same

Abstract

The invention provides an HPU liquid storage tank cleaning system and an impurity detection method using the HPU liquid storage tank cleaning system. An ultrasonic cleaner is installed on the inner wall of a liquid storage tank, a liquid conveying pipe is arranged in a fixing rod, the head end of the fixing rod is installed at the top end of the inner wall of the liquid storage tank, and a spray head is integrally arranged at the tail end of the fixing rod; an inlet of the liquid conveying pipe is communicated with an outlet of the ultrasonic cleaner, the bottom end of the liquid storage tank is of a structure with a conical cross section, a liquid outlet is formed in the lowest position of the conical bottom end of the liquid storage tank, the detection loop is arranged on the side wall of the liquid storage tank and communicated with the liquid storage tank to form a closed whole, and the detector is arranged in the middle of the detection loop. Two parallel capacitor plates are vertically installed on the inner wall of the detector and connected with a computer through wires. By means of the system, the impurity content of hydraulic oil in the HPU can be monitored in real time, impurities are cleaned in time, and the number and size of the impurities in the hydraulic oil are observed and analyzed.

Description

technical field [0001] The invention relates to the field of hydraulic technology, and more specifically relates to a HPU liquid storage tank cleaning system and an impurity detection method using the system. Background technique [0002] 1 Types and sources of pollutants [0003] There are various pollutants in the hydraulic system medium, among which solid particles (with a particle size of 5-15 μm) are the most important, in addition to water, air and harmful chemicals. The sources of pollutants mainly include the following points. [0004] (1) The original residues in the system, such as metal burrs and flashes remaining in the process of component processing and system assembly, sand particles, cotton yarn and cleaning agent when cleaning the system, and rust particles produced by components without anti-rust measures. [0005] (2) Generated inside the system, such as particulate matter produced by component wear and corrosion during system operation, and harmful comp...

AI Technical Summary

Problems solved by technology

[0007] 2 The hazards of hydraulic oil pollution

[0009] 3 traditional cleaning methods

This method is time-consuming and labor-intensive, and the organic solvent and hydraulic oil are volatile, which will damage the health of cleaning personnel

[0011] 4 Traditional impurity detection methods

[0013] Since the detection of solid pollutants in oil by the shading method is realized through the principle of changes in the light quantity of the oil to be measured, and there are inevitably a small amount of tiny bubbles and tiny water droplets in the oil after use, which can cause the light transmission intensity of the oil to change. Changes have occurred, causing the detection results of oil solid pollutants to deviate from the true value

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