Preventive maintenance and _ of vacuum pump in the vacuum drying oven

The maintenance of vacuum pump in the vacuum drying oven and maintaining

1. Always check the position of the oil level. If do not conform to the requirements, must be adjusted to meet the requirements. Use the vacuum pump is running, the center of the oil level in oil standard.

2。 Be sure to check the oil quality, find new oil should be replaced in a timely manner to ensure that the vacuum pump work.

3。 Consider oil change cycle according to the actual conditions of use, and whether it can meet the performance requirements, by the user's discretion. Usually, when using the new vacuum pump to remove, clean and dry air advice once every 100 hours to replace oil. In oil can't see the black metal powder, can extend the oil change period in the future.

4。 Under normal circumstances, should check the vacuum pump operation for 2000 hours, check the silicone seal aging degree, check whether the exhaust valve is broken, and clean the dirt on the valve plate and the exhaust valve seat. Clean the vacuum pump chamber components, such as rotor, the rotor blades, spring, etc. Usually dry clean with gasoline. Rubber parts after cleaning, dry with dry cloth. Should be careful when cleaning and assembly.

5。 Methodically pipe cleaning, ensure pipe unimpeded.

6。 After reassembling, should be tested. In general, it must be running for 2 hours, the oil change twice. Due to the cleaning process in a certain amount of volatile substances exist in the vacuum pump, will enter a state of normal operation after normal operation.

7。 Check vacuum pump pipe and connector is loose. Turn the vacuum pump with the hand, see if vacuum pump flexible.

8。 Add the bearing lubricating oil on the bearing body. Pay attention to the center line of the oil level should be located at the mimeograph. Lubricating oil should be replaced in a timely manner and supplement.

9。 Screw pump body under a vacuum pump water plug screw, pour into water ( Or slurry) 。

10。 Close the outlet pipe of vacuum gauge and entrance gate and export pressure gauge.

11。 Jog machine, check to see if the motor turning right.

12。 Start the motor. When the normal operation of vacuum pump, open the vacuum water pump outlet pressure gauge and imports. After the show the proper pressure, gradually open the gate valve and check the motor load.

13。 Try on the label instructions within the scope of the vacuum water pump flow rate and promote control, to ensure that the vacuum pump running at peak efficiency, to achieve maximum energy saving effect.

14。 During the running of the vacuum pump, bearing temperature should not be more than the environment temperature 35 ℃, the highest temperature should not exceed 80 ℃.

15。 If it is found that vacuum pump abnormal sound, please immediately stop and check the reason.

16。 When to stop the vacuum pump, the first close the gate valve, pressure gauge, then stop the motor.

17。 Vacuum pump running in the first month of 100 hours after the oil change, and then once every 500 hours in oil.

18岁。 Regularly adjust the packing gland, ensure that the drop to normal packing cavity ( The best drip) 。

19。 Regularly check the wear condition of bushing, and replace when worn.

20。 When using a vacuum pump in the cold winter, parking, should back off a water plug at the bottom of the pump body to release medium. To prevent the frost crack.

21。 Vacuum pump should completely stop using for a long time. Water must be completely sealed pump, dry, and will apply grease on the components and connectors, and save it in a safe place.

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