Centrifugal pump is used to transport water or other liquid equipment, it has high efficiency, can be directly connected with the high-speed motor running, simple structure, light body, easy to adjust, in industrial and agricultural production and daily life has been widely used .
Centrifugal pump in operation, may have a variety of faults, and now the possible causes of failure and approach are described below.
(1) the pump does not start when the water.
â‘ No water or no water before starting. Should stop the pump to re-fill the water;
â‘¡ absorbent height is too large. Should reduce the water absorption height, not more than 6 meters;
â‘¢ suction pipe leaks or bubbles, should check the suction pipe to eliminate leakage;
â‘£ faucet plug, tap should be cleaned;
⑤ rotation is too low, check the power situation.
(2) After starting, the pump displacement is very small.
①impeller inlet blockage by debris, impeller damage or blocked; check? Counseling Rose �? 謇 謇 锘 锘 Tour 锘 蚋?
â‘¡ faucet is partially blocked; check clean;
â‘¢ suction pipe joints are not tight; test? Private oil key mound? Jurisdiction 艋 蚧 bad 妫? Br /> å¶ impeller wear, mouth ring seal wear too large; check to confirm, replace the mouth ring seal ??
⑤ Pan plate leakage; replace the plate ç» box.
(3) suddenly dropped water faucet.
â‘ tap to reveal the water; stop pump.
â‘¡ faucet is blocked; pump stop cleaning.
(4) motor current is too large.
â‘ start when the drainage gate closed at the end of strict attention; start.
â‘¡ balance ring plate tilt too much or parts have stuck phenomenon; check the interior, the abnormal part of repair.
â‘¢ rotating part of the adjustment is not correct, to the direction of the water string too much, so that the impeller against the mouth ring; first impeller into the water side of the vertex, and should be based on the score check.
â‘£ the wheel is not correct or aprons too tight; to find treatment.
(5) lack of water pipe running too much water pressure.
â‘ balance disc sleeve and water jacket gap to expand; check the process, if necessary, replace one of the parts.
â‘¡ Improper assembly of the rubber gimbal ring, not being braced or stepped up the ring, without reinforcement rubber band rope; remove the bracket, re-assembly balance ring.
(6) pump vibration during operation.
â‘ pump and motor center is not right; check and adjust.
â‘¡ water pipe is not fixed; check and adjust.
â‘¢ stent bearing clearance big; check and adjust.
â‘£ axis bending; overhaul, replace the new shaft.
⑤ impeller or balance plate skew; overhaul.
â‘¥ feet loose screws, the foundation is not tightened; tighten the bolt or study to solve the underlying problem.
(7) Bearing fever.
â‘ oil is not clean or lack of oil; cleaning bearings, oil change or refueling.
â‘¡ oil ring does not turn or inflexible; check handling.
â‘¢ bearing clearance is too small; appropriate adjustments (pad or scraper).
(8) plate by fever. Pan ç» installed too tight or not soaked in oil; readjust or replace.
(9) Balance plate fever. Lack of water pipe dirty or pipe valve is not open; clean open the valve.
(10) Pump housing heat. In the gate closed or anhydrous circumstances, the pump working time is too long; stop pump cooling, and then turn on the attention