Working principle of common hydraulic pump accessories

2020-05-14 14:04:42

1. Basic principle of plunger pump accessories: by the hydraulic function of plunger in the cylinder, the cylinder volume changes repeatedly to suction and discharge fluid.

2. Working principle of hydraulic pump accessories: use the rotation of eccentric shaft to drive the movement of the plunger through the connecting rod device, and convert the circular rotation of the shaft into the hydraulic movement of the plunger. The plunger continuously moves hydraulically, and the process of water absorption and pressure of the pump parts is continuously and alternately carried out. Special structure

3. Working principle of water ring Rexroth pump accessories: the impeller of the blades of water ring hydraulic pump accessories Rexroth pump accessories a16 is eccentrically installed in the cylindrical pump accessories shell. Pump accessories into a certain amount of water. When the impeller rotates, the water is thrown to the pump accessory shell to form a water ring, and the inner surface of the ring is tangent to the impeller hub. Because the pump accessory shell is not concentric with the impeller, the air intake space 4 between the right half wheel hub and the water ring gradually expands, thus forming Rexroth, which enables the gas to enter the air intake space of the pump accessory through the air intake pipe. Then the gas enters the left half. As the volume between the hub rings is gradually compressed, the pressure increases, so the gas is discharged to the outside of the pump accessories through the exhaust space and exhaust pipe.

4. Working principle of Blythe pump accessories: the working principle of Blythe pump accessories is similar to that of Blythe blower. Due to the continuous rotation of the rotor, the extracted gas is drawn into the space V0 between the rotor and the pump accessory shell from the air inlet, and then discharged through the exhaust port. As the V0 space is totally closed after suction, the gas in the pump fitting cavity is not compressed and expanded. However, when the top of the rotor turns the edge of the exhaust port and the space V0 is connected with the exhaust side, because of the high gas pressure at the exhaust side, a part of the gas flows back into the space V0, which makes the gas pressure suddenly increase. When the rotor continues to rotate, the gas is discharged out of the pump accessories.