The troubleshooting and maintenance of water ring vacuum pump _

now concentrate on the fault handling of water ring vacuum pump. In water ring vacuum pump troubleshooting skills before, you must know its working principle and application scope, the necessary skills to determine water ring pump and mechanical maintenance of common sense, and according to the pump is not normal and can quickly determine the malfunction.

a, vacuum water pump, vacuum degree is not enough

may cause: motor power supply shortage in speed is not enough; Water supply is insufficient; Excessive clearance between impeller and distributing plate; Mechanical seal damage lead to leak leakage; The impeller wear too much; Circulating water is out.

elimination method: check whether the power supply voltage is within the scope of the motor rated voltage; Increase water supply ( Must be controlled within the scope of the right, otherwise it will lead to motor overload fever) ; Down the clearance between the impeller and distribution board ( Generally in 0. 15 - 0. 20mm) ; Replacement of mechanical seals; Replacement impeller; Check the outlet pipe.

2, start, don't noisy or launched

may cause: motor power supply voltage is insufficient; Motor open phase running; long time doesn't lead to rust; In the water pump suction sundry; Impeller drag distribution board.

elimination method: check if the power supply voltage is too low; Check whether the motor wiring are strong; If the pump for a long time useless result in corrosion can add some rust remover or open the pump cover artificial remove rust; Open the pump cover to remove debris; Adjust the distance of impeller and distribution board. Three, vacuum pump motor overheating

may cause: too much water lead to motor overload; Motor open phase; Vent plug; Impeller drag other components.

elimination method: reduce the water supply to the normal range ( With reference to the operating instructions of the pump for fluid volume) ; Check the wiring is strong; Check the outlet; Open the pump cover to adjust the impeller clearance and other components.

4, insufficient flow

may cause: pipeline leak leakage; Increases resistance losses;

elimination method: check the joint mechanical seal; Check and check valve in the pipeline for XXX.

water ring vacuum pump maintenance

( 1) In normal work should pay attention to check the working condition and lubrication bearing, its temperature ( Bearings and cylindrical) Generally higher than the environment temperature 15 ℃ ~ 20 ℃ advisable, highest does not allow more than 30 ℃ ~ 35 ℃, namely the bracket cylindrical actual temperature should not be more than 55 ℃ ~ 60 ℃; Normal work of the bearing should come on 3 ~ 4 times a year, cleaning bearing at least once a year, and replace all lubricating oil.

( 2) In the normal work and regular compression packing, if the packing does not guarantee the required sealing performance due to abrasion, new packing should be replaced. If the mechanical seal and found leakage phenomenon, shall check the movement of mechanical seal ring is damaged or auxiliary seal aging, such as in the above situation, all need to change the new parts.

( 3) In the event of a special sound can be removed two linking piece on the end cover, check whether the two face impeller and distributor grind, also can check whether the exhaust valve plate is normal.

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