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Barrel type centrifugal pump - has volute built into outlet duct to increase delivery pressure
Barrel type centrifugal pump - has volute built into outlet duct to increase delivery pressure
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机译:桶式离心泵-出口管道内置蜗壳以增加输送压力
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摘要
A barrel type centrifugal pump or open pit pump is housed in a cylinder (1) installed below the water level. Water flows in through the inlet (6), across the impeller (4) and up the central pipe (3). A volute casing (5) is attached to the upper end of the central pipe (3) and deflects the water to the outlet (7). Using a volute instead of the usual T junction increases the delivery pressure of the pump. The principle can be equally well applied to a pump with a double sided impeller. In addition the delivery pressure may be still further increased by installing a second impeller in the mouth of the volute casing.
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