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Abrasion particle online monitoring method through adsorption and adjacent capacitance

A particle and capacitor technology, applied in the field of hydraulic system, can solve the problem of unsatisfactory sensor sensitivity, and achieve the effect of inhibiting bubble growth, ensuring monitoring reliability, and increasing dielectric constant.

Inactive Publication Date: 2016-08-31
张国云
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The distance between the excitation plate and the receiving plate of the capacitive sensor is limited by the diameter of the hydraulic pipe. Due to the relatively large diameter of the hydraulic pipe, the sensitivity of the sensor is not ideal.

Method used

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  • Abrasion particle online monitoring method through adsorption and adjacent capacitance
  • Abrasion particle online monitoring method through adsorption and adjacent capacitance
  • Abrasion particle online monitoring method through adsorption and adjacent capacitance

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Embodiment Construction

[0036] Please refer to the attached figure 1 to attach Figure 8 As shown, the present invention is an online monitoring method for wear particles using adsorption and adjacent capacitors, which consists of a temperature control module 1, a magnetization module 2, an adsorption module 5, an adjacent capacitor particle monitoring module 6, a degaussing module 7, and an ECU 10. It consists of several parts. Wherein, the temperature control module 1 , the magnetization module 2 , the adsorption module 5 , the adjacent capacitive particle monitoring module 6 and the degaussing module 7 are connected in sequence.

[0037] One end of the temperature control module 1 is provided with an oil inlet 8 for inputting hydraulic oil into the device, which is composed of a heater, a cooler and a temperature sensor. The main purpose of the temperature control module 1 is to provide an optimum magnetization temperature of about 42° C. for the magnetization device. At the same time, temperat...

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Abstract

The invention relates to an abrasion particle online monitoring method through adsorption and adjacent capacitance. Abrasion particle online monitoring is sequentially conducted through a temperature control module, a magnetization module, an adsorption module, an adjacent capacitance abrasion particle monitoring module and a demagnetization module. One end of the temperature control module is provided with an oil inlet. One end of the demagnetization module is provided with an oil outlet, and the demagnetization module is composed of a residual magnetism sensor and a magnetic eraser. The adjacent capacitance sensor technology based on the capacitance edge effect is introduced, and non-intrusive and unconstrained monitoring of abrasion particles is achieved; the abrasion particles in oil are magnetized through the magnetization module and are adsorbed through the adsorption module, so that the intensity of output monitoring signals of adjacent capacitance sensors is improved; and through the temperature control module and the reasonable design of polar plate layer structures of the adjacent capacitance sensors, noise is suppressed, and the whole performance of an adjacent capacitance sensor monitoring device is optimized.

Description

【Technical field】 [0001] The invention relates to an online monitoring method for wear particles in hydraulic pipeline oil, in particular to an online monitoring method for wear particles using adsorption and adjacent capacitors, and belongs to the technical field of hydraulic systems. 【Background technique】 [0002] The wear particles in the hydraulic system oil can not only cause abrasive wear of the kinematic pair, but also hinder the relative movement of the kinematic pair, resulting in malfunction of the control components. Statistics at home and abroad show that 70% of hydraulic machinery failures come from particle pollution of oil. Therefore, on-line monitoring of wear particles in oil has become one of the important ways to reduce wear and hydraulic system failures. [0003] Capacitive sensors are used in the pollution monitoring of machine oil because of their convenient fabrication and low cost. Patent Document 1 (Chinese Invention Patent Authorization Announcem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/04
CPCF15B21/041F15B21/042F15B21/047
Inventor 张国云
Owner 张国云
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