Explain YG vertical pipeline pump failure causes and troubleshooting

YG vertical pipeline pump is suitable for conveying petroleum products such as gasoline, kerosene, diesel, etc. The temperature of the conveying medium is controlled within the range of minus 20 degrees Celsius to 120 degrees Celsius. Then, in the actual use of the user, due to improper use of some of the problems caused by the next, Xiaobian for you to explain the YG vertical pipeline pump failure causes and the corresponding exclusion method.

Explain YG vertical pipeline pump failure causes and troubleshooting

1. The phenomenon of failure is that the pump does not discharge water. The possible reasons are that the inlet and outlet valves are not open, the inlet and outlet pipelines are blocked, and the impeller flow channel is blocked; the motor runs in the wrong direction, the motor lacks a phase rotation speed is very slow; the suction pipe leaks; the pump is not Filled with liquid, there is air in the pump chamber; Insufficient water supply to the inlet, high suction range, and leaking of the bottom valve; excessive resistance of the pipeline, improper pump selection, corresponding exclusion method for inspection, removal of obstructions; adjustment of motor direction, fastening Motor wiring; tighten the sealing surfaces to eliminate air; open the pump cover or open the exhaust valve, exhaust air; stop inspection, adjustment; reduce the pipe bends, re-select the pump, of course, Shanghai Yi pump factory pumps will not In the case of improper pump selection, the technical personnel of the plant selected the most suitable model according to the actual parameters used by the customer.

2. In case of insufficient flow of the pump, take into account the obstruction of the runners of the pipeline and the pump impeller, the deposition of scale, and the lack of opening of the valve; the low voltage; the wear of the impeller, and the corresponding exclusion method is to remove the obstruction and re-adjust the opening of the valve; Regulated; replace the impeller.

3. There are three main reasons that may cause excessive power during the use of the YG vertical pipeline pump. They are: over-rated flow; excessive suction; pump bearing wear, corresponding exclusion: adjust flow, close the outlet valve; reduce Suction lift; replacement of bearings.

4. There are noises and vibrations in the water pump. Consider the following problems: unstable pipeline support; gas mixed with liquid; cavitation; bearing damage, corresponding elimination methods: stabilize the pipeline; increase the suction pressure and exhaust; reduce the vacuum; Replace the bearing.

5. The phenomenon of motor heating occurs, the cause of the failure: excessive flow, overload operation; rubbing; motor bearing damage; voltage is insufficient, the corresponding exclusion method: close the small outlet valve; check and eliminate; replace the bearing;

6. In case of leakage of water pump, two points to consider are: mechanical seal wear; pump body with sand holes or cracks; sealing surface is not flat; mounting bolts loose, the corresponding exclusion method: replace the mechanical seal; welding repair or replacement; trim; Fasten.