Online rotary ferrograph and equipment oil online monitoring method

Abstract

The invention discloses an online rotary ferrograph and an equipment oil online monitoring method. The online rotary ferrograph comprises an abrasive particle deposition spectrum forming module and amagnetic head module, wherein the magnetic head module comprises a rotatable magnetic head; the magnetic head comprises a barrel-shaped magnetic conductive bottom block, a pole shoe connected to an opening in the upper end of the magnetic conductive bottom block in a covering mode, and an electromagnet column located at the axis of the magnetic conductive bottom block; one end of the electromagnetcolumn is connected with the bottom surface of the magnetic bottom block and the other end is connected with the pole shoe to form a closed magnetic loop; the magnetic head module further comprises aconductive slip ring used for supplying power to the rotating electromagnet column; the abrasive particle deposition spectrum forming module is positioned above the pole shoe; and a to-be-detected liquid is placed in the abrasive particle deposition spectrum forming module for deposition and spectrum forming. Residual oil and pollutants in a deposition region can be cleaned and thrown away by means of the online rotary ferrograph, thus the online monitoring image quality is improved; two annular deposition surfaces with different diameters can be formed, and due to the fact that the magneticinduction intensities of the two annular deposition surfaces are different, the size ranges of abrasive particles deposited on the two annular deposition surfaces are different, and the spectrum forming monitoring efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of ferrography analysis, in particular to an online rotary ferrography instrument and an online monitoring method for equipment oil. Background technique [0002] Ferrography analysis technology (Ferrography) is a method of separating abrasive particles produced by friction and wear of machinery and equipment from oil samples under the action of a high-gradient magnetic field, and arranging them in order according to their particle size and ferromagnetic properties. On a transparent glass substrate or in a glass pipe, and then use microscopes and other means to observe and measure to obtain various information about the wear process of the equipment, so as to judge the wear state of the equipment and its wear mechanism. [0003] The existing online ferrography has the following problems: [0004] (1) On-line ferrography analysis Due to the limitation of spectrum preparation conditions, oil and pollutants wi...

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Problems solved by technology

[0004] (1) On-line ferrography analysis, due to the limitation of spectrum preparation conditions, oil and pollutants will remain on the surface of the spectrum, the edges of the wear grain image are blurred, it is difficult to clean, the imaging effect is poor, and it is difficult to accurately obtain the appearance of wear grains. appearance information

[0005] (2) The abrasive particle deposition area of ​​the existing online ferrography instrument is small, multiple abrasive particles are easy to stack, and the shape of a single abrasive particle is difficult to extract from the deposition area

[0006] (3) The size range of the deposited abrasive grains in the existing online ferrography instrument is very small under the same magnetic field strength and flow rate. According to the needs of the analysis, it is necessary to adjust the magnetic field strength and flow rate several times to deposit abrasive grains with different size ranges. To obtain different abrasive information, the operation process is complicated

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