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Hydraulic machinery sediment wear experiment method and application

A technology of hydraulic machinery and experimental methods, applied in the field of hydraulic machinery, can solve the problems of lack of mesoscopic quantitative experimental methods for sediment wear of hydraulic machinery, and achieve the effects of saving experimental costs, diverse experimental functions, and wide application range

Pending Publication Date: 2022-08-02
WUHAN UNIV
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Problems solved by technology

[0003] At present, there are generally more qualitative studies on the sediment wear of hydraulic machinery, that is, to explore the law of sediment wear through the study of the wear of hydraulic machinery after the overall operation, but less research on the quantitative and specific parts of the wear. One is the lack of more accurate mesoscopic quantitative experimental methods for hydraulic mechanical sediment wear

Method used

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  • Hydraulic machinery sediment wear experiment method and application

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Embodiment Construction

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work, fall within the protection scope of the present invention.

[0034] refer to Figure 1-2 , In the present embodiment, the impeller of the double-suction centrifugal pump is used as the hydraulic machinery over-current component, which is an indoor model experiment of the hydraulic machinery. The specific experimental method steps are as follows:

[0035] (1) Patch production, select pure copper sheet for patch manufacturing, the thickness of the sheet is 0.5mm, and the size of the patch is 3.0cm×2.2cm (length×width).

[0036...

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Abstract

The invention discloses a hydraulic machinery sediment wear experiment method and application. The method can be used for a hydraulic machinery sediment wear mesoscopic quantitative experiment. According to the invention, a patch which is easy to wear and bend is fixed at a position where the flow passage component of the hydraulic machinery is seriously worn, after each experimental working condition is completed, the patch is taken down, cleaned, dried and weighed, and is put under a field emission scanning electron microscope for morphology observation, so that the sand wear loss weight and the sand wear surface morphological characteristics are directly reflected. The method is not only suitable for hydraulic machinery indoor model experiments, but also suitable for engineering field experiments, can carry out hydraulic machinery silt wear mesoscopic quantitative research, visually reflects wear loss weight and silt wear characteristics, and provides a new method for hydraulic machinery silt wear research.

Description

technical field [0001] The invention belongs to the field of hydraulic machinery, and mainly relates to a meso-quantitative experimental method and application of hydraulic machinery sediment wear. Background technique [0002] The river contains sediment, which causes wear and tear on the flow-flow components of the hydraulic machinery. The hydraulic turbines and pumps used in the rivers with heavy sediment are facing serious sediment wear and tear. In-depth research is urgently needed to improve the sediment wear and prolong the service life of hydraulic machinery. . [0003] At present, there are generally more macroscopic qualitative researches on the experimental research of hydraulic machinery sediment wear, that is, the law of sediment wear is explored by studying the wear condition of the hydraulic machinery after the overall operation, while the microscopic quantitative and specific part wear research is less. One is the lack of a relatively accurate quantitative e...

Claims

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Application Information

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IPC IPC(8): G01N3/56G01N5/04G01N23/2251
CPCG01N3/567G01N5/04G01N23/2251Y02E10/20
Inventor 王志远林云发钱忠东程永光李鹏辉
Owner WUHAN UNIV
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