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Wear of axial pumps by turbidity currents
Conclusions 1. In order to increase the operating period and service life of axial pumps transferring liquids with a high content of hard particles, they should be operated at maximum efficiency, at all installation angles of impeller blades. 2. Superimposition of isolines of hydroabrasive wear onto the universal characteristic diagram enables optimal operational regimes for pumps to be selected on a well-founded basis, and also makes it possible to make engineering-economic comparisons of alternative pumping-station arrangements which differ in the number of units. 3. The data obtained regarding changes in the zones of hydroabrasive wear on components of the flow-through parts of axial pumps, which occurs as their operating conditions are varied, enables design measures to be taken for their protection. 4. The protective effect of cavitation, which is based on the damping properties of the cavitation zone, when traced experimentally over a wide range of change in the concentration of the turbidity current and the operational pump parameters, enables, within certain limits, the intensity of total cavitational-abrasive wear to be reduced.
Wear of axial pumps by turbidity currents
Conclusions 1. In order to increase the operating period and service life of axial pumps transferring liquids with a high content of hard particles, they should be operated at maximum efficiency, at all installation angles of impeller blades. 2. Superimposition of isolines of hydroabrasive wear onto the universal characteristic diagram enables optimal operational regimes for pumps to be selected on a well-founded basis, and also makes it possible to make engineering-economic comparisons of alternative pumping-station arrangements which differ in the number of units. 3. The data obtained regarding changes in the zones of hydroabrasive wear on components of the flow-through parts of axial pumps, which occurs as their operating conditions are varied, enables design measures to be taken for their protection. 4. The protective effect of cavitation, which is based on the damping properties of the cavitation zone, when traced experimentally over a wide range of change in the concentration of the turbidity current and the operational pump parameters, enables, within certain limits, the intensity of total cavitational-abrasive wear to be reduced.
Wear of axial pumps by turbidity currents
Karelin, V. Ya. (author) / Mamazhonov, M. (author)
Hydrotechnical Construction ; 12 ; 46-50
1978-01-01
5 pages
Article (Journal)
Electronic Resource
English
Wear of axial pumps by turbidity currents
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