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What are the reasons for the high current of the centrifugal
Source:未知|Popularity:0|release date:2020-04-03 15:23:31
There are many problems and failures that may be encountered during the use of centrifugal pumps. Among them, excessive current can be referred to as one of its common failures. Here are some reasons why centrifugal pumps have excessive currents. What is the corresponding solution?
In the process medium, if its density and viscosity exceed the specified indicators, it will likely cause the phenomenon of high current of the centrifugal pump. Therefore, it is necessary to check the composition of the material and compare its viscosity and relative density with the design value is adjusted within the specified range to ensure the smooth operation of the pump as a whole.
When the pump is started, if the outlet valve is fully open and the resistance in the outlet pipe is too small, it will also cause the excessive current of the centrifugal pump. Therefore, you must close the outlet valve and slowly open the outlet valve after the pump starts; In addition, the obstruction of the balance tube can also cause this phenomenon.
The high current of the centrifugal pump is also closely related to the pump assembly. There is also friction (stuck) in the dynamic and static parts. If it is caused by the poor assembly of the pump, then the pump needs to be reassembled. It is caused by the friction (stuck) of the dynamic and static parts. First of all, it is necessary to check and adjust the mating clearances, bearing clearances, and the positioning of the mechanical seal. It is worth noting that adjustments must be made strictly according to design requirements.
Finally, the reason for the excessively high current of the centrifugal pump is the electrical failure. At this time, the setting value and voltage of the circuit breaker heater need to be checked. The three-phase current error must be ≤3%, and it must be in balance state.
In the process medium, if its density and viscosity exceed the specified indicators, it will likely cause the phenomenon of high current of the centrifugal pump. Therefore, it is necessary to check the composition of the material and compare its viscosity and relative density with the design value is adjusted within the specified range to ensure the smooth operation of the pump as a whole.
When the pump is started, if the outlet valve is fully open and the resistance in the outlet pipe is too small, it will also cause the excessive current of the centrifugal pump. Therefore, you must close the outlet valve and slowly open the outlet valve after the pump starts; In addition, the obstruction of the balance tube can also cause this phenomenon.
The high current of the centrifugal pump is also closely related to the pump assembly. There is also friction (stuck) in the dynamic and static parts. If it is caused by the poor assembly of the pump, then the pump needs to be reassembled. It is caused by the friction (stuck) of the dynamic and static parts. First of all, it is necessary to check and adjust the mating clearances, bearing clearances, and the positioning of the mechanical seal. It is worth noting that adjustments must be made strictly according to design requirements.
Finally, the reason for the excessively high current of the centrifugal pump is the electrical failure. At this time, the setting value and voltage of the circuit breaker heater need to be checked. The three-phase current error must be ≤3%, and it must be in balance state.