High pressure piston pump flow Theoretical flow of the […]
High pressure piston pump flow
Theoretical flow of the pump: Qt=AsnZ
The theoretical flow rate of the Qt pump in the formula; the cross-sectional area of the A plunger (or piston); the S stroke; n The crankshaft speed (or the number of reciprocations per minute of the plunger) Z-joint (plunger or piston number)
Actual pump flow: Q = Qt-Q.
The flow rate of the Q pump in the formula; the theoretical flow rate of the Qt pump; the flow loss of the Q pump. The factors causing the flow loss of the pump are: volume loss due to liquid compression or expansion; volume loss due to hysteresis when the valve is closed; volume loss due to leakage of the sealing surface due to the valve being closed after closing; Volume loss caused by leakage of the piston rod or piston ring. 7. Instantaneous flow of the pump
Flow curve for single-cylinder single-acting pumps:
The flow rate of the three-cylinder single-acting pump is the superposition of the flow rate of the single-cylinder single-acting pump on three phases. The curve is as follows: