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An indirect measurement method for wear of difficult-to-disassemble parts such as high-speed switching valves

A high-speed switching valve and measurement method technology, applied in the field of erosion and wear measurement, can solve the problems of high-speed switching valve structural integrity damage, difficult measurement, etc., to achieve the effect of saving manpower and material resources, saving measurement costs, and avoiding downtime

Active Publication Date: 2022-05-17
FUZHOU UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

When high-speed switching valves are installed in confined spaces such as aerospace engines and automobile engines, it is difficult to remove them from the system by traditional wear measurement methods to measure wear values ​​to obtain their wear conditions; and, for high-speed switching valves, etc. For micro hydraulic valves, due to the very small size of the valve port, when using scanning electron microscopes and other measuring instruments to measure the wear value, the valve port structure needs to be cut open for observation and measurement, which will cause irreversible damage to the structural integrity of the high-speed switching valve. the destruction of

Method used

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  • An indirect measurement method for wear of difficult-to-disassemble parts such as high-speed switching valves
  • An indirect measurement method for wear of difficult-to-disassemble parts such as high-speed switching valves
  • An indirect measurement method for wear of difficult-to-disassemble parts such as high-speed switching valves

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Embodiment 1

[0038] reference Figure 3 , in the present embodiment, the piping system is a low-voltage or low-density system with low requirements on system containment, including an information acquisition module, an information processing module and other parts by measuring assembly 1. The information acquisition module is responsible for collecting the current value of the resistor in real time, and transmits the collected current value to the information processing module; the information processing module integrates the current information collected by the metal resistance obtained by the information acquisition module, calculates the resistance value using the formula, calculates the remaining thickness of the metal resistance according to the relationship between the thickness of the resistance and the resistance value, and then calculates the thickness loss value of the metal resistance; the display system accepts the thickness loss value of the metal resistance transmitted by the info...

Embodiment 2

[0064] reference Figure 4 , in the present embodiment of the pipeline system is a high voltage or a system with high requirements for system containment, the two ends of the direct test piece need to be connected to an external bypass, as a temporary transport for measurement, and both ends of the bypass circuit, both ends of the direct test piece are provided with valve components.

[0065] When measuring, open two bypass valves 7, and close two main circuit valves 6, the original system through the direct test piece 2 of the transport section to be transported by the bypass, and then the direct test piece 2 from the pipeline system disassembled down, directly using the measurement assembly measurement to obtain its wear value.

[0066] Establish a physical model of the fluid domain with the same solid structure as the direct test piece 2 and the indirect test piece 3, import it into the numerical simulation software, divide the calculation grid, set the same boundary conditions ...

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Abstract

The present invention relates to an indirect measurement method for wear of parts that are not easy to be disassembled, such as high-speed switching valves, comprising the following steps: Step S1: adding a direct test piece to the pipeline system of the indirect test piece to be tested; Step S2: and passing the measurement total Real-time measurement of the wear value of the direct test piece in pairs to obtain the wear value of the direct test piece; Step S3: According to the proportional relationship between the wear value of the direct test piece and the indirect test piece, according to the wear value of the direct test piece obtained from the measurement, obtain through proportional conversion Wear values ​​for indirect test pieces. The invention can obtain the wear data of the indirect test piece without dismantling it, and is suitable for pipeline systems buried deep underground and located at high places, as well as high-speed switching valves installed inside the system and other difficult-to-disassemble parts.

Description

Technical field [0001] The present invention belongs to the field of erosion wear measurement technology, specifically relates to an indirect measurement method for high-speed switching valves and the like that are not easy to disassemble parts of the wear. Background [0002] In the pipeline transportation process, the medium is inevitably mixed with sand, metal particles, oxygen and minerals that are easy to foul, especially the metal particles and quartz sand in the medium, which will hit the wall surface at a high speed driven by the medium, resulting in serious erosion wear at the valve port; at the same time, the material of the pipe wall will be reduced, and the pipe wall will be thinned, cracked and even perforated, which will seriously affect the safety and production efficiency of the system production. Erosion wear exists in the fields of petroleum, aviation, machinery, building materials, aerospace, energy, metallurgy, etc., and is one of the main causes of material ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B7/06
Inventor 李雨铮杜锦涛杜恒任祥波王年生
Owner FUZHOU UNIV
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