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Acid and alkali resistant magnetic pumps

What are the reasons for low flow rate of acid and alkali resistant magnetic pumps?

Release Date:2023-04-06 15:32 Views:

  Acid and alkali resistant magnetic pump flow is insufficient for more reasons, taking into account the magnetic pump itself belongs to the centrifugal pump upgrade products, is based on the centrifugal pump increased magnetic coupling, internal overcurrent effect and adaptability to the medium is no difference, so for example, the medium exceeds the standard, the motor speed abnormality, the installation error and other reasons have resulted in insufficient flow, you want to solve the problem need to find out the cause of the failure.

  First, what are the reasons for the low flow of acid and alkali resistant magnetic pumps

  At present, you can find out the cause of insufficient flow of acid and alkali resistant magnetic pumps through the specific manifestations of the failure, but also according to the actual working conditions to gradually investigate and solve the problem, you can refer to the following processing steps.

  1, check whether the motor steering and rotation speed is abnormal, abnormal steering change motor wiring, abnormal rotation speed check the current and voltage and the integrity of the motor itself.

  2, check whether the pipeline is blocked, or high viscosity of the pumping medium adsorption in the pipe wall, resulting in narrowing the flow channel affecting the flow of emissions, can be solved by cleaning, in addition to pay attention to the use of the pump after the timely cleaning of the pump chamber precipitation media, to prevent crystallization caused by clogging.

  3, check whether the valve is open normally, if due to abnormal conditions such as clogging, necrosis, jams and other circumstances that lead to not open the door normally, need to be corrected or replaced.

  4, whether the pump chamber water storage is not enough to cause the normal attraction of the media, can be added as needed.

  5, according to the pump specifications of the suction range parameters to determine whether the installation height is up to standard, if it is because the location is too high to lead to self-priming, you need to reduce or replace the installation location.

  In understanding the reasons for insufficient flow of acid and alkali resistant magnetic pump, it is necessary to say that, if the suction pipe diameter is too small or clogged, it will affect the flow size, head is too high or the speed is not enough will also have a direct impact on the flow, you need to adjust the outlet valve and restore the rated speed to solve the problem, do not let the flow rate for a long time in an abnormal state, if you keep the flow rate for a long time to maintain low-flow operation, or even idling, it will lead to a short period of time, the pump chamber temperature rises rapidly and burns the pump. Rapidly and burn the pump.

  Second, the common fault solution

  1、Transportation resistance in the discharge pipe is too large. Treatment: check and clean the pipeline, replace the pipeline and valve.

  2、Leakage of suction pipe. Treatment: check the suction pipe joints, as well as the tightening torque of the bolts; check the suction port gasket; check the tightening torque of the bolts on the pump casing; check the sealing gasket on the pump, replace the new gasket.

  3、Rotation speed is too low. Treatment: check the motor frequency and voltage.

  4, the wrong direction of rotation. Treatment: In accordance with the pump rotation direction of the indicator arrow, reconnect the motor's power cord or adjust the phase.

  5. The cross-sectional area of the suction pipe is reduced. Treatment: clean the suction port filter, remove the sediments in the suction pipe or replace the suction pipe.

  6, magnetic drive interruption. Treatment: shut down the motor, wait for the machine to stop, restart the motor.

  7、Motor rotation direction is wrong. Treatment: Change the direction of motor rotation.

  8, the suction pipe is not submerged deep enough, so that the pump sucks in air. Solution: Replace the suction pipe or lengthen it.

  9、Impeller or inlet and outlet pipes are clogged; Solution: clean up the silt or clogging at the water inlet, clean the impeller or pipes.

  10, the bottom valve into the water depth is insufficient; Solution: the bottom valve into the water depth must be greater than 1.5 times the diameter of the water inlet pipe, increase the depth of the bottom valve into the water.

  11, suction height exceeds the standard. Solution: Installation position is too low, or replace the high head pump.

  12, sealing ring, impeller wear serious. Solution: Replace the damaged sealing ring or impeller.

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