Spring pump common troubleshooting methods

The pumping machine is the main irrigation and drainage machine of the spring plant. Its main engine is the water pump. In the operation of the pump, it is inevitable that failure and damage will occur, resulting in normal pumping. Here are some common fault repair methods described below:

1. The pump does not absorb or drain. The reason for this is that the bottom valve is stuck, the filter water is partially blocked, the water absorption height is too high or the water absorption leaks. It may also be due to incorrect steering, blocked impeller passages, etc. After checking one by one, measures such as repairing the bottom valve, removing the plug, correcting the steering, and cleaning the impeller may be taken separately.

2. The pipe leaks or leaks. The nuts may not be tightly tightened during installation. If the leakage is not serious, you can apply cement or cement slurry mixed with asphalt oil in places where there is leakage or water leakage. Temporary repairs may be coated with wet mud or soft soap. If water leaks at the joint, tighten the nut with a wrench. Serious leakage must be re-installed.

3. The pump vibrates violently. The reason is that the electric rotor is unbalanced or the coupling is poorly coupled and the bearing wears and bends; it may also be loose parts and broken parts of the rotating parts; there are also reasons such as the lack of pipe brackets. Can be adjusted, repaired, reinforced, straightened, replaced, etc.

4. Disassembly and repair of the impeller. Impeller blades are damaged or subject to cavitation, etc. The surface is heavily pitted and should be replaced or plated with carbide. When the wear is not great, it can be burned. When disassembling, firstly fix the impeller and the pump shaft, loosen the nut or turn the mounting screw of the device, then rotate the ejector pin screw, gradually pull out the rotating device, then remove the shaft from the pump housing, remove the impeller and send it to the repair shop for repair.

5. Repair of shaft defects. The bending of the pump shaft is caused by the impact load, the belt being over-tightened or improperly installed. If the bend is not too severe, you can use a manual screw regulator to correct, but the force can not be excessive. If the pump shaft cracks or breaks, it can be welded, welded or forged, and then tempered and turned to ground.