Principles and operating procedures of Roots blower (compressor):

(3) Check whether the cooling water is unblocked and normal (observe whether the water meter rotates or whether there is no water flowing out of the drain).

(4) Check whether the equipment bearing and motor are overheated.

(5) Check whether the air volume, suction and discharge air pressure and other parameters are within the range of process indicators.

(6) Check the indicated value of the ammeter. In case of any abnormality, stop the machine immediately for inspection.

2.4 Shutdown steps

(1) Process load reduction.

(2) Open the pressure relief valve to relieve pressure.

(3) Stop the motor after no load and no voltage.

3. Common faults and solutions of Roots blower

Common faults and treatment methods of Roots blower

Handling method:

1. Insufficient air volume

2. Large rotor gap

3. Adjust the clearance

4. Seal leakage

5. Replace the sealing device

6. Filter mesh is blocked

7. Replace or clean the filter

8. Motor overload

9. Lubricating oil fails

10. Replace high-quality lubricating oil

11. Oil ring does not rotate or rotates too slowly

12. Repair or replace

13. Poor centering of fan shaft motor

Re centering

Seal wear

Large coaxiality error between seal ring and shaft sleeve

Replace worn parts

The shaft is bent or sundries enter the sealing ring

Remove sundries and carry out shaft alignment

Rotor vibration is too large or bearing clearance is too large

Replace the bearing to remove the influence of deformation

Roots blower (Roots blower) is a rotary compressor that uses two or three blade rotors to make relative movement in the cylinder to compress and deliver gas. The blower has simple structure and is easy to manufacture. It is suitable for gas transmission and pressurization at low pressure occasions, and can also be used as a vacuum pump.