The driving force of the fluid flow in the gravity gravity pipe is the position of the suction port of the pump

Pump flow rate The rated flow rate of the pump is determined by 1.051, 10 times the maximum filling flow rate. The lift vane pump is a positive displacement pump. The positive displacement pump has no nominal lift. The lift is the pump outlet pressure, which is mainly determined by the filling pressure of the cylinder. The higher the filling pressure, the higher the output, but when determining the filling pressure At the same time, the bearing capacity of the pump must be taken into consideration.

In general, the outlet pressure of the sliding vane pump should be set at the upper limit of the allowable value of the pump to give full play to the potential of the pump. The speed can be higher, and the flow velocity in gravity gravity pipes should be lower, according to practical experience, especially in the case of a long distance between the storage tank and the pump. The design of the liquid inlet pipe should follow the principle of straightness and simplicity, as far as possible to reduce roundabouts and undulations, the number of fittings and auxiliary facilities should be reduced to the minimum, and ball valves with small local resistance should be used as much as possible. The inlet pipe section should be heat-insulated, which is a measure against the high temperature in summer.

The inlet pipe of the liquid inlet slide vane pump is a gravity gravity flow pipe, and the driving force of the fluid flow is the position of the suction port of the pump. Flow rate and pipeline resistance of the inlet pipe section. Pump outlet pressure control method The outlet pressure of the sliding vane pump is mainly determined by the filling pressure of the steel cylinder. The filling pressure also determines the number of steel cylinders per unit of the filling scale, that is, the output.

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