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Online cavitation monitoring device

A monitoring device and cavitation technology, applied in measuring devices, using electrical devices, measuring ultrasonic/sonic/infrasonic waves, etc., can solve the problems of low sensitivity of traditional monitoring technology and cannot realize real-time monitoring, etc., and achieve the effect of high sensitivity

Inactive Publication Date: 2021-03-26
西安柯莱特信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional cavitation monitoring technology cannot realize real-time monitoring of cavitation, and the sensitivity of traditional monitoring technology is not high

Method used

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  • Online cavitation monitoring device
  • Online cavitation monitoring device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The invention provides a cavitation on-line monitoring device, such as figure 1 As shown, it includes a graphene layer 2 , a source electrode 3 , a drain electrode 4 , an electronegative material part 5 and an electropositive material part 6 . The number of layers of graphene in the graphene layer 2 is greater than 1 layer and less than 10 layers, so as to ensure the sensitivity of the conductive properties of the graphene layer 2 to its gate voltage, that is, the conductive properties of the graphene layer 2 are relatively sensitive to the electronegative material. Sensitivity to charge changes within section 5. The source electrode 3 and the drain electrode 4 are placed at both ends of the graphene layer 2 to measure the conductivity of the graphene layer 2 . The materials of the source electrode 3 and the drain electrode 4 are gold, silver, platinum. The electronegative material part 5 is fixed on the graphene layer 2 , and the electronegative material part 5 is no...

Embodiment 2

[0022] On the basis of Example 1, such as figure 2 As shown, the graphene layer 2 is provided with holes 7 . The hole 7 is placed on the lower side of the electronegative material part 5 . The electronegative material part 5 penetrates through the hole. During application, the electronegative material part 5 penetrating through the hole 7 adheres to the tube wall of the Venturi tube 1 . In this way, on the one hand, the graphene layer 2 has more contact area with the electronegative material part 5, and the change of electric charges in the electronegative material part 5 will change the conductive properties of the graphene layer 2 more; On the one hand, the graphene layer 2 and the electronegative material part 5 are more firmly fixed on the tube wall of the Venturi tube 1, and when the Venturi tube 1 vibrates, the electropositive material part 6 can be more in contact with the electronegativity The material portions 5 are separated so that a more pronounced charge chang...

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Abstract

The invention belongs to the field of cavitation on-line monitoring, and particularly provides an online cavitation monitoring device which comprises a graphene layer, a source electrode, a drain electrode, an electronegative material part and an electropositive material part, the source electrode and the drain electrode are arranged at the two ends of the graphene layer, the electronegative material part is fixed to the graphene layer, and the electronegative material part does not make contact with the source electrode or the drain electrode. Wherein the electropositive material part is arranged on the electronegative material part, and the edges of the electropositive material part and the electronegative material part are bonded. Real-time monitoring of cavitation in the Venturi tube is achieved by detecting the conductive characteristic of the graphene layer. Because the conductive characteristic of the graphene layer is very sensitive to the grid voltage, the device has the advantage of high sensitivity.

Description

technical field [0001] The invention relates to the field of cavitation on-line monitoring, in particular to a cavitation on-line monitoring device. Background technique [0002] Bubbles form, expand and collapse rapidly in a fluid when the pressure within the fluid changes suddenly, a phenomenon known as cavitation. Cavitation causes erosion of materials, shortens the life of equipment, and creates hazards such as vibration and noise. Monitoring cavitation is very important to the proper operation of equipment. Traditional monitoring techniques include high-speed camera method, coating corrosion method, noise measurement method, etc. Traditional cavitation monitoring technology cannot realize real-time monitoring of cavitation, and the sensitivity of traditional monitoring technology is not high. Contents of the invention [0003] In order to solve the above problems, the present invention provides a cavitation on-line monitoring device, comprising a graphene layer, a ...

Claims

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Application Information

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IPC IPC(8): G01N27/00G01H11/06
CPCG01H11/06G01N27/00
Inventor 不公告发明人
Owner 西安柯莱特信息科技有限公司