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Annular micro-flow channel oil liquid detection device and manufacturing method thereof

A detection device, micro-channel technology, applied in the direction of analysis materials, instruments, etc., can solve the problems of small oil flow, long detection time, etc., to increase throughput, improve accuracy, and solve the effects of small oil flow detection

Active Publication Date: 2018-12-28
DALIAN MARITIME UNIVERSITY
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Problems solved by technology

This utility model directly contacts the oil to be tested with the insulated wire, and can detect wear particles with a diameter below 50 microns in the liquid to be tested, but this method detects a small flow of oil and takes a long time to detect

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  • Annular micro-flow channel oil liquid detection device and manufacturing method thereof
  • Annular micro-flow channel oil liquid detection device and manufacturing method thereof
  • Annular micro-flow channel oil liquid detection device and manufacturing method thereof

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Embodiment Construction

[0037] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordina...

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Abstract

The invention provides an annular micro-flow channel oil liquid detection device and a manufacturing method thereof. The device comprises a micro-fluidic sensor and a measuring unit. According to different magnetization effect mechanisms of ferromagnetic particles and non-ferromagnetic particles in a spatial magnetic field, the device is used for detecting solid pollutants in oil liquids such as hydraulic oil, lubricating oil and the like. The attributes of the pollutants are distinguished by utilizing an inductance detection method. An annular micro-flow channel is designed for the first time, so that the flux of a to-be-detected oil sample is increased, and the detection time is shortened; and a silicon steel sheet is placed in the micro-flow channel, and the spatial magnetic field of adetection area is gathered, so that the magnetic field intensity of the detection area is increased, and the detection precision of the sensor is improved. The method and the process have the advantages that the manufacturing is simple and reliable, and the cost is reduced. An effective method is provided for oil liquid online monitoring of machine equipment, and fault diagnosis can be carried outon the machine equipment.

Description

technical field [0001] The invention relates to the technical field of fault detection of a hydraulic system of ship equipment, in particular to an annular microchannel oil detection device and a manufacturing method thereof. Background technique [0002] Oil detection and analysis technology is a quantitative and qualitative analysis of the physical and chemical properties and pollutant particles in the oil (hydraulic oil, lubricating oil, etc.) in mechanical equipment. Pressure oil pollutants reflect the working status of the entire hydraulic system. The particle size of solid particle pollutants is below 20 microns, which is the normal allowable pollution range. Once abnormal mechanical wear occurs, the particle size of solid particles produced will increase rapidly, even reaching 100 microns Above, it is easy to produce dangerous conditions and cause system paralysis. At present, there are a series of rapid detection methods for pollutants, and there are many correspond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/00
CPCG01N15/00
Inventor 张洪朋白晨朝顾长智曾霖赵旭鹏
Owner DALIAN MARITIME UNIVERSITY
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