An introduction to the three-lobe Roots blower?


Release date:

2022-09-22

Today, many people still lack a basic understanding of certain fundamental aspects of the three-lobe Roots blower. As the manufacturer, it’s therefore necessary for us to briefly explain this equipment. In fact, the three-lobe Roots blower is something we encounter everywhere. It features a unique structural design and plays a critically important role in various industrial applications. Thus, it’s essential that we promptly familiarize ourselves with its operating principles and structural features, so that we can quickly become proficient in its operation and use.

  Today, many people still have... Three-lobe Roots blower We’re not fully familiar with some of the basic information, so as the manufacturer, it’s necessary for us to briefly explain it. In fact, this three-lobe Roots blower is something we encounter everywhere. It has a unique structure and plays a very important role in the industrial sector. Therefore, we should promptly learn about its operating principle and structural design, so that we can become more familiar with and proficient in its operation more quickly.


 Three-lobe Roots blower


  The operating principle of a three-lobe Roots blower involves arranging two three-lobe rotors within the casing. The inlet and outlet ports are located on opposite sides of the casing. Driven by a pair of synchronizing gears, the two rotors rotate in opposite directions. By meshing with each other, they effectively seal off the inlet and outlet ports and propel the gas inside the casing to achieve the purpose of air blowing. The rotors rotate in opposite directions relative to each other through the action of synchronizing gears housed within the casing. Thanks to appropriate working clearances between the rotors themselves and between the rotors and the casing, an intake chamber is formed. As the rotors turn, the gas within the casing is transferred from the intake chamber to the exhaust chamber without undergoing internal compression, and then discharged from the casing, thereby achieving the desired purging effect.

  Comprehensive inspection Three-lobe Roots blower The integrity of each component, the tightness of bolt and nut connections, the installation quality of fasteners and locating pins, as well as the installation quality of intake and exhaust pipes and valves—these factors must be carefully checked to ensure the safe operation of the fan. The fan must not bear any external loads from pipelines, valves, or frames. Inspect the alignment and alignment quality of the three-lobe Roots blower and its motor. Verify that the base of the unit is completely filled and that the anchor bolts are securely tightened. Add mechanical oil of the specified grade to the oil tank up to the oil level mark; the recommended lubricant grade is N220 medium-load gear oil. Confirm that the rotation direction of the motor driving the three-lobe Roots blower meets the required orientation specifications. A belt guard (protective cover) should be installed on the pulley (coupling) to ensure operational safety. Fully open the inlet and outlet valves of the fan, then rotate the fan rotor manually. The rotor should turn smoothly without any collisions or friction. Only after confirming that everything is normal can the fan be started for a trial run.

  No-load trial run of the three-lobe Roots blower. All newly installed or overhauled blowers shall undergo a no-load trial run. The concept of no-load operation for a Roots blower is to start it up with both the inlet and outlet valves fully open. During no-load operation, there should be no unusual odors, smoke, collisions, or friction noises, and the radial vibration velocity of the bearings should not exceed 6.3 mm/s. The no-load run should last approximately 30 minutes. If everything proceeds normally, Three-lobe Roots blower It can be put into operation under load. If any operational abnormalities are detected, even after inspection and troubleshooting, a no-load trial run is still required. Therefore, when making your purchase, we also recommend that everyone choose reputable, well-established manufacturers. This way, you can rest assured about the pricing as well.