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Detection system and method for fluid nonmetal particle concentration

A technology of non-metallic particles and metal particles, which is applied in particle suspension analysis, measuring device, suspension and porous material analysis, etc. It can solve problems such as difficult to achieve accurate detection, single fixed detection plane, and affecting the detection accuracy of particle concentration in fluids, etc. , to achieve the effect of improving accuracy and fully detecting

Pending Publication Date: 2018-05-18
FATRI UNITED TESTING & CONTROL QUANZHOU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) In order to establish the magnetic field balance and induce the magnetic field signal of metal particles, two reverse excitation coils and one induction coil are required, and the design makes the sensor length longer, which is not conducive to actual design, preparation, installation and use;
[0005] (2) Only one magnetic induction coil is used. When electromagnetic induction is used for magnetic field balance, the magnetic field attenuation outside the excitation coil (excitation coil) is relatively obvious, and the magnetic field disturbance generated by small particles on the excitation coil is reflected on the external induction coil. Attenuation has often been a lot, so the detection accuracy of tiny particles is insufficient, which affects the detection effect, and then affects the detection accuracy of the particle concentration in the fluid
[0006] For the detection of fluid particles, in the existing technology of particle shape detection devices, the laser tube is often fixed, and the particles are of different sizes, so the distribution of particles in the same lubricating oil pipeline cross section is often not uniform , so the fixed laser tube setting may have a single detection plane, which makes it difficult to accurately detect the form of particulate matter in lubricating oil, which makes the measurement accuracy of particulate matter concentration in lubricating oil insufficient.

Method used

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  • Detection system and method for fluid nonmetal particle concentration
  • Detection system and method for fluid nonmetal particle concentration
  • Detection system and method for fluid nonmetal particle concentration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0135] Embodiment 1 (a kind of detection system of non-metal particle concentration in fluid)

[0136] As shown in Figure 1 (a), it is a schematic structural view of a preferred embodiment of a detection system for non-metallic particles in a fluid of the present invention. The detection system includes a particle shape detection device 1 and a metal particle detection device 2 And the detection pipeline 3, the particle shape detection device and the metal particle detection device are connected to each other and wound on the detection pipeline;

[0137] As shown in Figure 1(a) and Figure 1(b), the particle shape detection device includes: a laser tube 11 for outputting an incident light beam; a scattering detector 12 for detecting a fluid outgoing light beam;

[0138] The metal particle detection device includes a signal detection system 21, an excitation coil 22, and two induction coils (respectively a first induction coil 23 and a second induction coil 24), and the excitati...

Embodiment 2

[0143] Embodiment 2 (a metal particle detection device in the detection system of the concentration of non-metallic particles in a fluid)

[0144] Such as figure 2 Shown is a schematic cross-sectional structure diagram of the first preferred embodiment of the metal particle detection device in the system of the present invention;

[0145] The detection device includes a signal detection system 21, an excitation coil 22, and two induction coils (respectively a first induction coil 23 and a second induction coil 24), the excitation coil is connected with the signal processing system and wound on On the detection pipeline 3; the induction coils are all connected to the signal processing system, and wound on the excitation coils sequentially and oppositely to each other.

[0146] The above is one of the preferred implementations of the technical solution. This basic implementation has the following beneficial effects:

[0147] (1) The setting method of the excitation coil and t...

Embodiment 3

[0154] Embodiment 3 (a metal particle detection device in the detection system of the concentration of non-metallic particles in a fluid)

[0155] Such as image 3 Shown is a schematic cross-sectional structure diagram of the second preferred embodiment of the metal particle detection device in the detection system of the present invention; the difference between this embodiment and the above-mentioned embodiment 1 is that: Figure 4 As shown, a spacer sleeve 25 is also arranged between the excitation coil and the induction coil in the detection device, that is, the excitation coil is covered with a spacer sleeve, and the induction coil is wound on the on the spacer sleeve. And, a shielding ring 26 is provided outside the induction coil.

[0156] The above two technical solutions can be implemented together, or only one can be implemented, depending on the needs. In this embodiment, both solutions are implemented, that is, a spacer ring sleeve and a shielding ring are prov...

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Abstract

The invention discloses a detection system and a detection method for fluid nonmetal particle concentration. The detection system comprises a particulate matter shape detection device, a metal particle detection device and a detection pipeline, wherein the particulate matter shape detection device and the metal particle detection device are mutually connected and are intertwined on the detection pipeline. The detection method comprises the following steps: S1, fluid particulate matter concentration detection, S2, fluid metal particulate matter concentration detection, and S3, fluid nonmetal particulate matter concentration detection. By the detection system and the detection method of the scheme, the concentration of nonmetal particulate matter in fluid can be more accurately detected, andthe detection accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of fluid detection, in particular to a detection system for the concentration of non-metallic particles in a fluid, and further provides a detection method using the detection system. Background technique [0002] At present, there are many methods for detecting the concentration of metal particles in fluids, but there are few methods for detecting the concentration of non-metallic particles in fluids. Some methods directly measure non-metallic particulate matter, but due to the different shapes and materials of the particles in the fluid, and they are easy to interact with each other, the measurement results are often poor. Therefore, it is a preferred implementation to measure the total particle information and the metal particles in the fluid respectively and then subtract them. [0003] For the detection of metal particles in fluids, the detection of metal particles using the principle of electromagneti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/06
CPCG01N15/06G01N15/0656G01N15/075G01N2015/003G01N2015/0668G01N15/0205G01N2015/0294G01N15/1459G01N2015/1486G01N2015/0053G01N2015/1493G01N2015/1497
Inventor 聂泳忠张中萍
Owner FATRI UNITED TESTING & CONTROL QUANZHOU TECH CO LTD
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