How to adjust the pressure of the pressure pump

How to adjust the pressure of the pressure pump is as follows:

(1) is generally available on the panel through setting adjustment. The working principle of digital pressure control pump is that the microcontroller drives the stepping motor according to the set control program, and then the stepping motor driver (including stepping motor and high-precision roller screw).

(2) Drive the digital electro-hydraulic proportional control pump (the assembly of pump body and oil distribution mechanism) to reciprocate, so that the liquid pressure reaches the set value and remains constant (the output flow can also be controlled). This controlled variable can be controlled by J'I' loop as required, and can also be fed back to the input end of single chip microcomputer for accurate closed-loop pressure (or flow) control.

(3) The pressure pump shunts the output pressure through the regulating valve to obtain different pressures. By adjusting the power supply voltage and reducing the input power of the pump, the output pressure of the pump can be changed (reduced) to some extent.

Extended data:

Pressure principle of pressure pump:

(1) When the pressure in the system is higher or lower than the rated safety pressure, the disc in the inductor moves instantaneously, and the switch connector is opened or closed through the connecting guide rod. When the pressure drops or rises to the rated recovery value, the disc will reset immediately and the switch will reset automatically.

(3) When the measured pressure exceeds the rated value, the free end of the elastic element is displaced, which directly or after comparison pushes the switching element to change the on-off state of the switching element, thus controlling the measured pressure. The elastic elements used in pressure switch include single spiral spring tube, diaphragm, diaphragm box and bellows.