The main characteristics of reciprocating pump

characteristics of reciprocating pump, the characteristics of the reciprocating pump

reciprocating pump it belongs to a kind of positive displacement pump, reciprocating pump is mainly by the pump cavity volume periodic changes for the purpose of the medium. Prime mover's mechanical energy by the reciprocating pump can directly into the medium pressure, the flow of reciprocating pump on pump cavity volume value and its changes in frequency, theoretically has nothing to do with the discharge pressure. The instantaneous flow rate is fluctuating

this is because in the reciprocating pump, the suction and discharge process of liquid medium ( The volume change process) Is alternates and piston ( Plunger) In the process of moving, the speed and in constant change. Work in only one cavity ( Single cylinder pump) The pump, the instantaneous flow rate of the pump not only change over time, and it is discrete; Work in with multiple cavity ( Multi-cylinder pump) Variations in the instantaneous flow rate of pump, the pump and how much work cavity and phase set about. Average flow rate is constant

pump working volume flow rate only depends on the frequency of value and its changes. Specific speaking, the pump flow depends only on the main structural parameters of pump and the number n of reciprocating piston or plunger stroke S, piston or plunger diameter D and working chamber or piston number Z, theoretically has nothing to do with the discharge pressure. The pressure of the water pump depends on the pipeline characteristics

centrifugal pump capacity and head is limited by the pump itself, and the two are closely related. Reciprocating pump is different, its discharge pressure is not limited by the pump itself, but rather depends on the pipeline characteristics, device has nothing to do with the flow. Reciprocating pump can theoretically according to the properties of pipe device to establish any necessary discharge pressure.

in fact, in the reciprocating pump factory has a pump discharge pressure specified value, this is not to say that the pump discharge pressure will not rise again, but due to the limit of the engine power and structure strength limit pump itself, does not allow the pump in the discharge pressure is higher than 1. 05 ~ 125 times. So the reciprocating water pump discharge pipe must be the road while driving the valve is opened entirely, and reciprocating pump discharge line must be set the relief valve. For conveying medium has the strong adaptability of

reciprocating pump for the transmission of any media can in principle, in fact also there will be not adapt to the situation, it mostly by the hydraulic side material, manufacturing process and the limitation of sealing technology, but is still the most widely in the medium range of pump. Good self-priming capacity

reciprocating pump and self-priming pump has good self-priming capability, basically do not need to fill before starting the pump,

can be seen from the above characteristics of reciprocating pump, reciprocating pump is mainly suitable for high voltage, small flow rate, and is suitable for the requirement of pump flow is constant or quantitative, Measurement) Transmission of various media or in proportion as the plunger metering pump is used, or require people absorption performance good occasion.

related products series: reciprocating pump