Briefly Describes Common Malfunctions and Elimination Methods of Multistage Slurry Pumps

In the use of multi-stage slurry pump, we will inevitably encounter machinery and equipment failure, in general, skilled machine maintenance staff quickly quickly find the cause of the problem and quickly deal with, because in their minds Lane, equipped with multi-level slurry pump common faults and their removal methods, a lot of trouble naturally see at a glance. Brief description of common fault and troubleshooting of multi-stage slurry pump Slurry pump in operation there are four common faults: corrosion and wear, mechanical failure, performance failure and shaft seal failure, these four faults often affect each other. Such as impeller corrosion and wear can cause performance problems and mechanical failure, shaft seal damage can cause performance failures and mechanical failure First, the main erosion or wear and tear should be considered from both the media and materials for wear parts wear to a certain extent Should be replaced Second, mechanical failure is mainly vibration and noise, the main reasons are: bearing damage, cavitation, poor assembly Third, the performance of the main fault flow, lack of pump cavitation and drive overload and other accidents Fourth, the shaft Seal failure refers to the main seal leak 1, bearing fever. A, excessive oil, too little or bad will cause the bearing fever, oil and oil should be modulated the appropriate B, check the unit is concentric, adjust the pump and prime mover on C, if the vibration anomalies, should check the rotor is balanced 2 , Causes the slurry pump does not output the reason of the slurry and the processing method. A, the air sucked into the pipeline or pump should be filled with liquid exhaust air B, import and export side of the pipeline valve is closed or not remove the blind, should open the valve to remove the blind C, the use of lift is higher than the maximum pump Lift, should replace the head of the pump D, impeller rotation direction error should be corrected motor rotation direction E, the suction height is too high, should reduce the pressure at the entrance to reduce F, debris clogging or suction pipe is small, should remove the plug plus Large diameter G, speed does not match, should adjust the speed to meet the requirements 3, leading to inadequate flow lift causes and treatment A, impeller damage, replace the impeller B, seal ring damage too much, replace the seal ring C, the import outlet valve is not fully open , Should be fully open D, the medium density and pump requirements do not match, recalculate 4, sealing leak serious causes and treatment methods A, sealing material selection improper, replace the appropriate components B, severe wear and tear, replacement of wear parts, and adjust the spring Pressure C, O-ring damage, replace the O-ring 5, the cause of the motor overload and treatment A, pump and prime mover (motor or diesel output) Misalignment So that the two medium B, the relative density of the medium becomes larger, change the operating conditions or replace the appropriate power of the motor C, the friction part of the rotation, repair the friction part D, the device resistance becomes low, biased to a large flow, Valve to obtain the specified traffic on the signage (Editor: Huang Nengwen QQ:)

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