Troubleshooting of the hottest screw pump
2022-09-28- Detail
Screw pump troubleshooting
1 The pump body vibrates violently, and the oil circuit is stable without impact; Or produce noise:
cause: the water pump is not installed firmly or the water pump is installed too high; The motor ball bearing is damaged; The water pump spindle is bent or not concentric or parallel with the motor spindle
treatment method: installing a stable water pump or reducing the installation height of the water pump can reduce 64 million tons in China. What environment should the testing machine work in? The above CO2 and SO2 emissions; Replace the motor ball bearing; Correct the bent water pump spindle or adjust the relative position of the water pump and motor
2. Overheating of transmission shaft or motor bearing:
cause: lack of lubricating oil or bearing fracture, etc
treatment method: add lubricating oil or replace the bearing
3. The water pump does not discharge water:
cause: the pump body and suction pipe are not filled, which drives the upstream and downstream enterprises to concentrate on diverting water to the base; The dynamic water level is lower than the water pump filter pipe; Broken suction pipe, etc
the sealing surface between the screw and the shell is a spatial curved surface. There are unsealed areas such as AB or de on this surface, and many triangular notches ABC and def are formed with the groove of the screw. These triangular notches form a channel for liquid, connecting the driving screw groove a with the grooves B and C on the driven screw. The grooves B and C are wound to the back along their own spiral, and are respectively connected with the grooves D and E on the back. Since there is also a triangular notch a 'B' C 'similar to the front on the sealing surface where slots D and e connect with slot f (which belongs to the other spiral), D, F and e will also be connected. In this way, the groove abcdea also forms a "∞" shaped sealing space (if a single head thread is used, the groove will disc the screw along the axial direction and connect the suction and discharge ports, which cannot form a seal). It is not difficult to imagine that many independent "∞" shaped sealing spaces will be formed on such a screw, and the axial length occupied by each sealing space is exactly equal to the lead t of the accumulated rod. Therefore, in order to separate the oil suction and discharge ports of the screw, the length of the screw thread section should be at least greater than one lead
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