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Cavitation erosion-erosion wearing cooperative test device

A technology of experimental testing and synergy, applied in the direction of testing wear resistance, etc., can solve the problems such as the inability to accurately describe the weight loss of metal materials, the lack of in-depth research on the synergistic mechanism of multiphase flow cavitation-erosion wear, and the long testing time. , to achieve the effect of extending the safe and stable operation cycle and avoiding unplanned shutdown accidents

Active Publication Date: 2013-09-25
ZHEJIANG SCI-TECH UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) The research on the synergy mechanism of multiphase flow cavitation-erosion wear is not deep enough, the test time of related equipment is long, and the experimental results are difficult to be extended to engineering applications
[0007] (2) Conventional experimental devices cannot quantitatively predict and observe the failure of cavitation-erosion wear in solid-containing multiphase flow transmission devices, and cannot accurately describe the weight loss of metal materials under the synergistic effect of cavitation-erosion wear

Method used

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  • Cavitation erosion-erosion wearing cooperative test device
  • Cavitation erosion-erosion wearing cooperative test device
  • Cavitation erosion-erosion wearing cooperative test device

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with drawings and embodiments.

[0019] Such as figure 1 As shown, the present invention comprises a feeder 1, a compressor 2, a motor 5, a slurry tank 6, a cavitation-erosion wear test valve 8, a separator 10, a recovery tank 11, a first shut-off valve 3, and a second shut-off valve 30. The third cut-off valve 31; the inlet of the slurry tank 6 is composed of three branches converging, the gas in the first branch (such as nitrogen, air) is connected to the slurry tank 6 through the compressor 2 and the first stop valve 3 through pipelines The inlet of the upper side, the water inlet of the second branch is connected with the pipeline between the compressor 2 and the first stop valve 3 through the second stop valve 30, and the solid particles of the third branch (such as coal powder, fine sand, carbon dioxide Silicon) through the feeder 1, the flange is connected with the pipeline at the outlet of the...

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Abstract

The invention discloses a cavitation erosion-erosion wearing cooperative test device. A slurry tank inlet is formed by a convergence of three branches which are a gas inlet, a water inlet, and a solid particle inlet. A transmission shaft of a motor extends into the slurry tank, and drives stirring blades to rotate. The outlet of the slurry tank is connected to an inlet of a separator through a stop valve and a cavitation erosion-erosion wearing test valve, and a pipeline. A gas phase outlet is provided on the top of the separator. A solid-liquid double-phase outflow port on the bottom of the separator communicates with a recovery tank. A liquid level gauge and pressure gauge are arranged on the side of the slurry tank. With the device provided by the invention, the flow state of a multiphase flow medium can be observed, and particle motion trajectory can be observed. With a valve core pressure sensor on the top of the test valve core, the determination of flow cavitation number is realized. The device is suitable to be used for researching cavitation erosion and erosion wearing, and weight loss law of a metal material under the cooperative effect of cavitation erosion-erosion under different influencing facts. With the device, a functional relationship between a corresponding failure mode and weight loss can be established. The relationship can be used in guiding design of pipes, valves, and pipe fittings, and in optimization operations of operation conditions.

Description

technical field [0001] The invention relates to a multi-phase flow erosion test device, in particular to a test device for cavitation-erosion wear synergy applied to gas-liquid-solid multi-phase flow. Background technique [0002] Multiphase flow transportation is widely used in process industries such as petroleum, chemical industry, biology, pharmaceuticals, and metallurgy, and plays a very important role in the development of the national economy. Cavitation-erosion (abrasion) damage failure is a common failure problem in multiphase flow transmission equipment. Among them, the cavitation-erosion wear phenomenon of high-temperature, high-pressure differential, and high-speed solid-containing multiphase fluids on devices is particularly prominent. Become a serious obstacle to the long-term safe operation of equipment or pipeline systems. [0003] In recent years, in order to meet the needs of energy development, it is imperative to increase the national energy strategic re...

Claims

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Application Information

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IPC IPC(8): G01N3/56
Inventor 金浩哲偶国富肖定浩
Owner ZHEJIANG SCI-TECH UNIV
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