The common malfunction bible _ water ring vacuum pump

Common fault for the first water ring vacuum pump, water ring vacuum pump vacuum degree is not enough

the possible reasons: lack of electrical power to speed; Water supply is insufficient; Excessive clearance between impeller and distributing plate; Mechanical seal damage, leading to a leaking gas leakage; Excessive wear of impeller; Circulating water can't discharge.

elimination method: check whether the power supply voltage on the motor rated voltage range; To increase water supply ( Must be controlled within the scope of the right, otherwise it will cause the motor overload and heating) ; Adjust the clearance between the impeller and the distributor plate ( As a general rule, be 0. 15 - 0. 20 mm) ; Replacement of mechanical seals; Replacement impeller; Check out the water pipe.

second, water ring vacuum pump can't start, or will be made a lot of noise

the possible reasons: lack of motor power supply voltage; No phase operation of the motor. long-term need not lead to rust; Miscellaneous articles or objects inside pump suction; Drag the splitter impeller plate.

elimination method: check whether the power supply voltage is too low; Check the electrical wiring is strong; If a pump long time need not, can add rust remover or turn on the pump cover derusting. Open the pump cover removing debris; Adjust the distance between the impeller and the distribution plate. Third,

water ring vacuum pump motor overheating possible reasons: excessive water lead to motor overload; Motor open phase; Air vent is blocked; Impeller drag other parts.

elimination method: reducing the water supply to the normal range ( See pump for fluid volume in the operating instructions) ; Check the wiring is strong; Check the outlet; Open the pump cover, adjust the clearance between the impeller and other components. Fourth,

insufficient water ring vacuum pump discharge possible reasons: pipeline leakage; Resistance loss increases.

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

the daily maintenance of water ring vacuum pump

( 1) Normal work, we should pay attention to check the working condition and lubrication bearing. Suggest its temperature ( Bearing and the outer ring) Generally higher than the environment temperature 15 ℃ ~ 20 ℃, the highest do not exceed 30 ℃ ~ 35 ℃, the bearing frame outer actual temperature is not more than 55 ℃ ~ 60 ℃; For normal work of the bearing, should add 3 - every year Four oil, bearing cleaning at least once a year, replace all lubricating oil.

( 2) During the normal work, packaging should be compressed regularly. If the packing does not guarantee the required sealing performance due to abrasion, it should be replaced the new packing. If you are using a mechanical seal and found the leak, check whether the mechanical seal ring and static ring is damaged or auxiliary seal whether ageing. If the above situation, need to change the new parts.

( 3) For special voice, can remove the two linking piece on the end cover, check whether the dispenser is damaged the two end face of the impeller discharge valve plate is normal.

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