Centrifugal pumps are generally designed in accordance with the theory of onephase flow, but in fact, they are often operated in condition of solid-water two-phase flow. For example, impure pumps are widely used in qu...Centrifugal pumps are generally designed in accordance with the theory of onephase flow, but in fact, they are often operated in condition of solid-water two-phase flow. For example, impure pumps are widely used in quite a number of industry departments, and the pumps at the pumping stations by the Yellow River have high sand equivalent. Because the operation conditions are out of accord with the designment, the efficiency of the pumps is very low, the anticavitation ability is decreased and the serivce life shortened.展开更多
The efficiency of a centrifugal pump is generally regarded as lower in transporting twophase solid-liquid medium than in pumping water. S. T. Bonnington considered it inevitable that the efficiency will be reduced und...The efficiency of a centrifugal pump is generally regarded as lower in transporting twophase solid-liquid medium than in pumping water. S. T. Bonnington considered it inevitable that the efficiency will be reduced under the two-展开更多
文摘Centrifugal pumps are generally designed in accordance with the theory of onephase flow, but in fact, they are often operated in condition of solid-water two-phase flow. For example, impure pumps are widely used in quite a number of industry departments, and the pumps at the pumping stations by the Yellow River have high sand equivalent. Because the operation conditions are out of accord with the designment, the efficiency of the pumps is very low, the anticavitation ability is decreased and the serivce life shortened.
文摘The efficiency of a centrifugal pump is generally regarded as lower in transporting twophase solid-liquid medium than in pumping water. S. T. Bonnington considered it inevitable that the efficiency will be reduced under the two-
