Compared with the oil pump, the oil-free vacuum pump has a low degree of vacuum and a small amount of air, but it is small in size, easy to install, simple to maintain, easy to move, does not generate oil fume, and does not pollute the environment, especially in laboratories with high requirements. It is also one of the pieces of equipment that are always available in the laboratory.
Maintenance operation of oil-free vacuum pump:
1. Jog the motor to see if the direction of the motor is correct.
2. After reassembly, a trial operation should be carried out. Generally, it must be run for 2 hours and the oil should be changed twice. Because there will be some volatile substances in the vacuum pump during cleaning, it will be put into normal operation after the operation is normal.
3. If possible, clean up the pipes to ensure that the pipes are unobstructed.
4. Start the motor. When the vacuum pump is running normally, open the outlet pressure gauge and the inlet vacuum pump. After the show, the appropriate pressure gradually opens the gate valve and checks the motor load at the same time.
5. Check the vacuum pump pipeline and joints for looseness. Turn the vacuum pump by hand to see if the vacuum pump is flexible.
6. Close the gate valve, outlet pressure gauge, and inlet vacuum gauge of the water outlet pipeline.
7. Unscrew the water diversion plug of the vacuum pump body, and pour water diversion (or slurry diversion).
8. Add bearing lubricating oil into the bearing body, observe that the oil level should be at the centerline of the oil mark, and the lubricating oil should be replaced or supplemented in time.
9. Try to control the flow and head of the circulating water vacuum pump within the range indicated on the sign to ensure that the vacuum pump is running and obtain a good energy-saving effect.