Sediment abrasion resistant pump

pump wear resistance, wear resistance of the water pump

the joint action of cavitation erosion, sediment abrasion and is one of the important reasons, at present all kinds of water pump suffered damage by experiment and numerical model

intends to study the mechanism of cavitation erosion, abrasion and the joint action of both is the development of fluid machinery optimization design method, improve the fluid machine

machinery against the basis of cavitation erosion, sediment and wear ability. Wear due to the influence of cavitation erosion, sediment and the combined action of

factors both the flow field parameters such as velocity, pressure, and there are grains of sand, and material properties, since the 1970 s, the field

the study on cavitation erosion, abrasion and joint mechanism, interaction between different affecting factors, and improve the wear resistance of the pump abrasion resistant material aspects of the research development and progress.

wear-resisting sand wear protection is based on the research of the cause of the water pump after the success of the selected strategies, on the surface of hydraulic machinery flow rapidly destroy mechanism of research, provides the theoretical support.

is the classification of the wear and tear, more commonly used classification is adhesive wear, abrasive wear ( Abrasive wear) Four categories, friction oxidation and fatigue wear. Wear resistance of the water pump and turbine if work in sand river, belongs to abrasive wear. Abrasive wear according to the opinions of the lorenz and according to the degrees of freedom into consolidation of abrasive grits, semi-solid grits and free abrasive three categories. Consolidation of abrasive sandpaper, grinding wheel, file, etc. Grits are fixed on a material surface, unable to move, the results of the wear damage is abrasive grinding, fall off. Semi-solid abrasive grits is not fixed, so grinding grain can sliding, rolling, but freedom is still small, such as piles of sediment in the bulldozers shovel, plow their fields belong to the wear and tear. Free of abrasive, such as air or water entrainment grits to contact or be ground object relative movement, a series of furrows on the ground objects, grinding grain of fine hour be ground objects will also be worn smooth. Free rolling, sliding already, also can beat, etc. For a long time for corrugated, groove wear results. Wear resistance of the water pump and turbine silt wear and sand when wind power of the fan blade abrasion belongs to a type of free abrasive wear.

work water pump in water medium, water turbine can see flow components surface damage called cavitation erosion, the water in the air

bubble when high breaking, can produce thousands of atmospheric pressure, when the air bubbles in the metal surface breaking, produce the metal

, this is the basic consensus of cavitation erosion. While working in silt-laden water flow of the surface of the water pump, turbine flow components break

bad except for cavitation erosion and sediment abrasion, the exist of cavitation erosion and wear and tear of silt erosion of said ( Wear and cavitation erosion

combination) 。 Wear and cavitation erosion is caused by two distinct mechanisms, they are on the material flow components on the surface of

; The damage characteristics also have obvious difference. Can more clearly show the differences between them and interactive alternate change.

above all sediment abrasion resistant pumps that we suggest to choose some speed lower material selects the wear resistance of material produced by pump products; The mud pump, for example, corrosion resistant pump, or self-priming mud water pump, etc.

recommended products: municipal flood control and drainage pumps

the wear resistance of the water pump technology news articles by professional self-priming pump, original.

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