Three common troubles of screw pump

1, screw pump body vibration or noise:

Causes: The pump is not installed properly or the pump is installed too high; the ball bearings of the motor are damaged; the spindle of the pump is bent or misaligned with the motor shaft, and is not parallel.

Treatment method: Install the water pump or reduce the installation height of the water pump; replace the motor ball bearing; correct the curved water pump spindle or adjust the relative position of the water pump and the motor.

2, screw pump drive shaft or motor bearings overheat:

Cause: Lack of lubricant or broken bearings.

Treatment method: Fill the oil or replace the bearing. Valve inlet pump industrial washing machine 3, screw pump water pump water:

Cause: The pump body and suction pipe are not filled with water; the dynamic water level is lower than the water pump filter pipe; the suction pipe is broken.

The sealing surface between the screw and the housing is a spatial curved surface. There is an unsealed area such as ab or de on this curved surface, and many triangular shaped notches abc, def are formed with the groove portion of the screw. The openings of these triangles constitute the channels of the liquid, so that the drive screw groove A communicates with the grooves B, C on the driven screw. The grooves B and C are wound along their own spirals to the back surface, and communicate with the grooves D and E on the back surface respectively. Since there are also triangular recesses a'b'c' similar to the front side at the sealing surfaces where the grooves D, E and the groove F (which belong to the other head thread) meet, D, F, E will also communicate. In this way, the recess ABCDEA also constitutes an “∞” shaped sealed space (if a single head thread is used, the groove will follow the axial disc and the screw will penetrate the suction and discharge port to form a seal). It is not difficult to imagine that on such a screw, many independent “∞” shaped sealed spaces will be formed, and each sealed space occupies an axial length that is exactly equal to the lead t of the rod. Therefore, in order to separate the screw suction and discharge ports, the length of the threaded section of the screw must be greater than at least one lead.