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Multiparameter oil comprehensive detection device and manufacturing method thereof

A comprehensive detection, multi-parameter technology, used in fluid pressure actuation devices, fluid pressure actuation system testing, mechanical equipment, etc., can solve problems such as insufficient detection accuracy, and achieve the effect of improving detection accuracy and strengthening magnetic field strength

Active Publication Date: 2019-04-16
DALIAN MARITIME UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some existing oil detection devices can realize the comprehensive detection of oil, they also face the problem of insufficient detection accuracy

Method used

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  • Multiparameter oil comprehensive detection device and manufacturing method thereof
  • Multiparameter oil comprehensive detection device and manufacturing method thereof
  • Multiparameter oil comprehensive detection device and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 As shown, the present invention provides a multi-parameter oil comprehensive detection device including a microfluidic detection chip, a detection mode switching unit 9 and an excitation-detection unit 10; the microfluidic detection chip includes a glass substrate 6 and a A chip body; the chip body includes:

[0047] One end of the chip body is provided with a microchannel inlet 1, and the other end is provided with a microchannel 2 with a microchannel outlet 4 and a sensing unit 3; the oil with particulate pollutants is driven from the microchannel inlet 1 into the detection device, Flow through the sensing unit 3 through the microchannel 2, and finally go from the microchannel 2 to the outlet 4 of the microchannel.

[0048] Such as Figure 2-3 As shown, the sensing unit 3 includes a planar inductance coil 7 and a strip-shaped silicon steel sheet 8; the planar inductance coil 7 and the strip-shaped silicon steel sheet 8 are placed oppositely; the mic...

Embodiment 2

[0063] Such as Figure 7 As shown, another embodiment of the present invention shows a detection comparison chart for 90-100 micron iron particles. The signal obtained by detecting 90-100 micron iron particles with a chip added with a silicon steel sheet is 9.3×10 -10 H, the signal obtained by detecting 90-100 micron iron particles on the chip without silicon steel sheet is 5.2×10 -10 H; The detection accuracy of the chip with silicon steel sheet is significantly improved compared with the chip without silicon steel sheet.

[0064] Such as Figure 8 As shown, another embodiment of the present invention shows a detection comparison chart for 190-200 micron copper particles. The signal obtained by detecting 190-200 micron copper particles with a silicon steel sheet is 7.4×10 -10 H, the signal obtained by detecting 190-200 micron copper particles on the chip without silicon steel sheet is 2.1×10 -10 H; Compared with the chip without silicon steel sheet, the detection accurac...

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Abstract

The invention provides a multiparameter oil comprehensive detection device and a manufacturing method thereof in order to distinguish and detect ferromagnetic metal particles, nonferromagnetic metal particles, water drops and bubbles in oil. Based on a manufacturing method of a micro-fluidic chip, for the first time, a strip-shaped silicon steel sheet is arranged on the side of a planar inductancecoil to enhance the magnetic field around the planar inductance coil so as to improve the detection accuracy of the metal particles; and meanwhile, the strip-shaped silicon steel sheet and the planarinductance coil can be used as two polar plates of a capacitor so as to introduce capacitance parameter detection to distinguish and detect the water drops and the bubbles in the oil. The detection device can complete comprehensive detection of particle pollutants in lubricating oil and hydraulic oil, a new method for the rapid detection of oil in machinery equipment is provided, and the failurediagnosis of the machinery equipment can be realized.

Description

technical field [0001] The invention relates to the technical field of oil system fault detection, in particular to a multi-parameter oil comprehensive detection device and a manufacturing method thereof. Background technique [0002] The failure of the hydraulic system is caused by the pollution of the hydraulic oil. The pollutants in the hydraulic oil can be mainly divided into three categories: solid particles, water and air bubbles. When the concentration and particle size of solid particles in hydraulic oil are too large, it will increase the wear of hydraulic components and reduce work efficiency; water will degrade the additives in hydraulic oil to weaken the lubricating performance of the oil, and water will emulsify the oil, Corrosion of hydraulic components; air can cause cavitation, cavitation, resulting in vibration and noise. Oil pollutants carry a large amount of information about the operation of machinery and equipment. Therefore, the detection of hydraulic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B19/00B29C39/10
CPCB29C39/10F15B19/00
Inventor 张洪朋史皓天王文琪孙广涛徐志伟
Owner DALIAN MARITIME UNIVERSITY
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