21 points for maintenance of DZF vacuum drying oven vacuum pump

1. Regularly checkDZF vacuum drying ovenThe oil level position must be adjusted to meet the requirements if it does not comply with the regulations. When the vacuum pump is running, the oil level should be at the center of the oil gauge.

2. Regularly check the oil quality and replace it with new oil if it deteriorates, to ensure the normal operation of the vacuum pump.

3. The oil change period shall be considered based on actual usage conditions and whether it can meet performance requirements, and shall be determined by the user at their discretion. It is recommended to change the oil of a new vacuum pump after about 100 hours of operation when removing clean and dry gases. After the black metal powder is no longer visible in the oil, the oil change period can be extended appropriately in the future.

4. In general, after 2000 hours of operation, the vacuum pump should be inspected for aging of the sealing components, cracking of the exhaust valve plate, and cleaning of any dirt deposited on the valve plate and exhaust valve seat. Clean all parts inside the vacuum pump chamber, such as rotors, rotors, springs, etc. Usually cleaned with gasoline and dried. After cleaning the rubber parts, dry them with a dry cloth. When cleaning and assembling, handle with care to avoid injury.

5. Conditional cleaning should also be carried out in the pipeline to ensure smooth flow.

6. After reassembly, a trial run should be conducted, generally requiring 2 hours of idle operation and a second oil change. This is because there may be a certain amount of volatile substances left in the vacuum pump during cleaning. After normal operation, it can be put back into normal work.

7. Check for any looseness in the vacuum pump piping and joints. Rotate the vacuum pump by hand to see if it is flexible.

8. Add bearing lubricating oil into the bearing body, and observe that the oil level is at the centerline of the oil gauge. The lubricating oil should be replaced or replenished in a timely manner.

9. Unscrew the water inlet plug of the vacuum pump body and inject water (or slurry).

10. Close the gate valve, outlet pressure gauge, and inlet vacuum gauge of the water outlet pipeline.

11. Tap the motor and try to see if the motor direction is correct.

12. Start the motor, and when the vacuum pump is running normally, open the outlet pressure gauge and the inlet vacuum pump. After the appropriate pressure is displayed, gradually open the gate valve and check the motor load.

13. Try to control the flow rate and head of the vacuum pump within the range indicated on the label as much as possible to ensure that the vacuum pump operates at the maximum efficiency point, in order to achieve the maximum energy-saving effect.

14DZF vacuum drying ovenDuring the operation of the vacuum pump, the bearing temperature should not exceed 35 ℃ of the ambient temperature, and the maximum temperature should not exceed 80 ℃.

15. If any abnormal sound is found in the vacuum pump, it should be stopped immediately to check the cause.

16. When the vacuum pump needs to be stopped, first close the gate valve and pressure gauge, and then stop the motor.

17. The lubricating oil of the vacuum pump should be changed after 100 hours of operation within * months, and then every 500 hours thereafter.

18. Regularly adjust the packing gland to ensure normal dripping inside the packing chamber (preferably in droplets).

19. Regularly check the wear of the shaft sleeve, and replace it promptly if there is significant wear.

20DZF vacuum drying ovenWhen using a vacuum pump in the cold winter season, after parking, it is necessary to unscrew the drain plug at the bottom of the pump body to drain the medium completely. Prevent frost cracking.

21. If the vacuum pump of DZF vacuum drying oven is not in use for a long time, the pump should be completely disassembled, wiped dry of moisture, and the rotating parts and joints should be coated with grease and properly stored