Mine submersible pump failure analysis and solution

Mine submersible pump failure analysis and solution

Mine submersible pump is conveying liquid or causes the liquid turbo-charged machinery. Of all the equipment in operation, more or less inevitable failure and damage, which cannot be normal pumping. Need is the event of a failure to have the corresponding processing method, the following is several common mine submersible pump failure and elimination method.

1, no water absorption: Failure analysis: probably because there is air in the pump body or feed line pneumatosis, or bottom valve closed lax irrigation water diversion discontent, vacuum packing serious leakage, a gate or door closed lax. Solution: the water first, and then pump body filled with water, and then start; Check whether the check valve is tight, pipe, joint presence of air leakage phenomenon; Check the pump shaft seal ring, such as severe worn should replace a new one.

2, flow: Failure analysis: power speed don't match or belt creep, the speed is low; Axial flow pump blade installation Angle is too small; Head is insufficient, the line is too long or pipe elbow bend. Solution: restore the rated speed, remove belt oil dirties, adjust the belt tightness; Adjusted the blade Angle, reduce the water pump installation location, and shorten or change the pipe bending; Sealing water pump leakage, pressure packing; Unclog, replace the impeller; Replacement minus leakage ring, plug leaks.

3, violent vibration: Failure analysis: probably electric rotor imbalance, or coupling with bad, bending bearing wear; May also turn loose parts, burst; May be due to pipe bracket is not strong and so on. Solution: respectively to adjust, repair, strengthening, alignment, replacement, etc. To deal with. When mine submersible pump troubleshooting, must be timely find out problems, correct expression. Diving, mainly mechanical and electrical integration of new drainage equipment, by high pressure water filling type submersible motors and multistage centrifugal pump, become an organic whole repeatedly into the water. Low requirements for installation environment condition, make bed, can adjust measures to local conditions place where appropriate drainage. On the analysis of the fault and solve can not only improve the competitiveness of the products, also can improve the work efficiency.