Water ring vacuum pump common fault and maintenance methods introduced

[Asia Pump Network News] In the use of water ring vacuum pump may be some failure, the following small series to introduce you to some water ring vacuum pump common fault and maintenance methods, I hope for your help. Water ring vacuum pump common fault and repair methods introduced 1, the vacuum pump power consumption is too large: ⑴ rotation direction wrong solution: check the direction of rotation. ⑵ impeller damage solution: check the impeller, according to the requirements of replacement. ⑶ rotating parts bite death solution: Check the internal wear parts of the gap is normal. ⑷ axis bending solution: alignment axis or on request to be replaced. 2, the vacuum pump will stop for a while running: ⑴ suction too high solution: Check the existing net head (inlet pipe is too small or too long will cause a great friction loss). ⑵ impeller or pipeline blocked solution: Check for any obstructions. ⑶ solution to produce air or inlet pipeline leaks: Check the inlet pipeline for air cavitation and / or air leakage. ⑷ stuffing box packing or seal wear, so that the air leaked into the vacuum pump shell. Solution: Check the packing or seal and replace as needed, check the lubrication is normal. 3, no liquid to provide insufficient liquid supply or lack of pressure: ⑴ vacuum pump without water or without proper exhaust. Solution: Check the vacuum pump housing and inlet lines are all filled with liquid. ⑵ speed is too low solution: Check the motor wiring is correct, the voltage is normal or the turbine steam pressure is normal. ⑶ system head too high solution: check the system head (especially the friction loss). ⑷ suction too high solution: Check the existing net head (inlet pipe is too small or too long will cause a great friction loss). ⑸ impeller or pipeline blocked solution: check for any obstructions. (Editor: Li Juan)

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