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Deal with gear pump fault coup
Gear pump broken how to do? Do not worry, you find out the reasons for the symptoms, you can repair the method described below. (1) Failure phenomenon: the pump can not discharge Fault causes: a, the opposite direction of rotation; b, suction or discharge valve is closed; c, no inlet or pressure is too low; d, viscosity is too high, the pump can not bite countermeasures: a , Confirm the direction of rotation; b, confirm the valve is closed; c, check the valve and pressure gauge; d, check the liquid viscosity, low speed operation by the speed ratio of the flow rate is there, if the flow, then the inflow, (2) Phenomenon: Insufficient pump flow Failure causes: a. Inlet or discharge valve is closed; b. Inlet pressure is low; c. Outlet line is blocked; d, Fill box leaks; e. Check the valve is open; c, to confirm the discharge volume is normal; d, tighten; a large number of leaks affect production, should stop running, disassembly inspection; e, check the actual shaft speed; : A, the coupling eccentric or poor lubrication b, motor failure; c, reducer abnormalities; d, shaft seal at the installation of bad; e, shaft deformation or wear countermeasures: a, find or fill the grease; b, check electric Machine; c, check the bearings and gears; d, check the shaft seal; e, check the disintegration of parking (4) Symptom: current is too large Fault causes: a, the outlet pressure is too high; b, melt viscosity is too large; c, Package with bad; d, shaft or bearing wear; e, motor failure measures: a, check the downstream equipment and pipelines; b, test the viscosity; c, check the shaft seal, appropriate adjustments; d, check after parking, Excessive; e, check the motor (5) Symptom: Sudden stop pump Failure causes: a, power failure; b, motor overload protection; c, coupling damage; d, the outlet pressure is too high, interlocking reaction; B, check the motor; c, open the safety cover, disk car inspection; d, check the instrument interlock system; e, after the stop, both positive and negative Turntable car confirmed; f, car confirmation