Rotary vane vacuum pump Troubleshooting
1. Rotary Vacuum Pump Fault Phenomenon: Low Vacuum Degree
(1) insufficient oil;
(2) Pump oil is not clean and emulsified;
(3) The pump oil number is incorrect:
(4) The oil inlet hole is blocked and the oil supply is insufficient;
(5) Leakage; (6) Damage of exhaust valve piece;
(7) excessive fit clearance due to wear;
(8) With the increase of pump temperature, the oil viscosity decreases.
(9) The temperature of pump oil and gas body is too high:
(10) When assembling, the end cap bolts are not tightened uniformly, resulting in the axis deviation of the rotor.
(11) Fracture of blade spring:
(12) Blockage of intake pipe filter;
(13) The ballast valve is not closed or damaged;
(14) The key of the pump wheel is broken and the wheel rotates idly.
(2) Open air ballast and replace new oil:
(3) oil change:
(4) Clean up the oil inlet hole and adjust the oil quantity;
(5) Check the seals, exhaust valves, end caps, etc., and replace the sealing rings;
(6) Replacing new valves; (7) Checking clearance and repairing;
(8) Increase the amount of cooling water;
(9) Air-cooled device;
(10) disassembly and reassembly;
(11) Replace the spring:
(13) Closing or repairing valves;
(14) Change keys.
2. Rotary Vacuum Pump Fault Phenomenon: Pump Blocking
(1) The end clearance is too small and the pump oil temperature rises too high;
(2) impurities enter the pump;
(3) Pump temperature is too high;
(4) Rotor fracture;
(5) Rust in pump chamber.
(1) Grinding the spindle and adjusting the clearance:
(2) cleaning up;
(3) Strengthen water cooling:
(4) Pump removal and replacement;
(5) rust removal.
3. Rotary Vacuum Pump Fault Phenomenon: High Noise
(1) Fracture of blade spring;
(2) loose assembly parts;
(3) The parts are burred and deformed.
(4) No oil in motor shaft.
(2) Change the spring;
(2) re loading;
(3) Reloading, grinding and replacement;
(4) Add lubricating oil.
4. Rotary Vacuum Pump Fault Phenomenon: Oil Leakage
(1) Seals in axle holes, end caps, oil marks, oil releasing holes and oil tanks are damaged or not tightened;
(2) There are leaks in the tank.
(1) Change the seal and tighten the screw:
(2) Close the leak.
5. Rotary Vacuum Pump Fault Phenomenon: Difficulty in Starting
(1) low oil temperature;
(2) poor lubrication in the pump;
(3) There is no gas amplification in the pump chamber, and a large amount of oil enters the pump chamber.
(1) Heating to above 15 degrees Celsius;
(2) adjusting oil quantity;
(3) Degassing during pump shutdown
6. Rotary Vacuum Pump Fault Phenomenon: Fuel Injection
(1) The system suddenly exposed to the atmosphere;
(2) too much oil;
(3) The rotation direction of the rotor is reversed.
(1) Turn off the low vacuum pump and continue to open the valve;
(2) Redundant oil released:
(3) Re-connect the power supply and commutate.
7. Rotary Vacuum Pump Fault Phenomenon: No Pump Pumping
(1) The pump wheel key is broken and the rotor does not rotate;
(2) The rotor cross joint of the two-stage pump is broken and the high vacuum stage does not turn.
(3) The intake valve was not opened;
(4) The exhaust valve fragments.
(1) New keys;
(3) Open the valve;
Rotary Vacuum Pump