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Common troubleshooting methods for water ring vacuum pump

In the chemical production, water ring vacuum pump is used to transport or suck flammable, explosive and corrosive gases. It is efficient and safe. But if the operation is improper in use, there will be some faults occasionally. The following will let us analyze the common failures and solutions of the vacuum pump.

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Water ring vacuum pump common troubleshooting methods:


1. Overheating of water-ring vacuum pump motor is generally caused by excessive water supply motor overload, lack of phase, exhaust hole plugging, impeller dragging other components. At this time we need to reduce the water supply to the normal range, refer to the use of the pump instructions; check whether the wiring is firm, check the exhaust port, open the pump lid to adjust the clearance between the impeller and other components.


2. can not start or start after the noise is too big, the water ring vacuum pump motor power supply voltage is insufficient, the pump for a long time did not cause corrosion, when the pump inhalation of sundries will happen. Check whether the power supply voltage is too low and whether the electrical wiring is reliable. If the pump has not been used for a long time to cause corrosion can be added a point of rust remover or open the pump cover to artificially remove rust; open the pump cover to remove debris.


3.  the reason why the vacuum pump is not enough is that the motor power supply is insufficient, the water supply is insufficient and the clearance between the impeller and the distribution plate is too large. The mechanical seal damage leads to the leakage of water, and the impeller wear too much circulation water can not be discharged. Check whether the power supply voltage of the water ring vacuum pump is in the rated voltage range of the motor; increase the water supply (must be controlled in the correct range, otherwise it will lead to overloading of the motor); the clearance between the impeller and the distribution board (generally in 0.15-0.20mm); the replacement of the mechanical seal; the replacement of the impeller; and the inspection of the pipe of the outlet.


The water-ring vacuum pump has the advantages of compact structure, stable and reliable operation and uniform flow, and there are also reasons for problems in operation. As long as we usually pay attention to inspection and maintenance to find the cause of the failure, it can be very good to solve and prevent the occurrence of accidents.


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