The three leaf Roots blower is mainly composed of the following parts:
1. Shell and wall panel: The shell is the main part of the fan, used to accommodate and protect other internal components. The wall panel and the casing together form the overall structure of the Roots blower, which is usually made of sturdy gray cast iron material and undergoes aging treatment to ensure its durability and stability. The design of the casing and wall panels also includes reinforcement ribs, providing additional support and enhancing the stability of the structure.
2. Impeller: The impeller is a key moving component of a three bladed Roots blower, typically made of gray cast iron and treated with aging. The blade surface of the impeller adopts an involute design, which helps reduce airflow resistance and improve fan efficiency. In addition, the impeller undergoes static and dynamic balance correction to ensure its stability and performance during operation. Two three bladed impellers rotate relative to each other in a sealed space, which reduces machining difficulty and ensures the operation of the fan.
3. Shaft and Bearing System: The main and auxiliary shafts of a three bladed Roots blower are typically made of high-strength 45 steel and undergo quenching and tempering treatment to meet the load-bearing and rotational requirements of the blower during operation. Both the main and auxiliary shafts are supported on the wall panel using rolling bearings. In some configurations, such as C-type transmission, additional support bearings are installed on the main shaft pulley side to ensure the balance and stable operation of the entire fan system.
4. Gears: The gears of a three blade Roots blower are usually made of 20Cr material and undergo carburizing and quenching treatment before grinding to improve their hardness and wear resistance. The accuracy of the synchronous gear reaches level 6, ensuring the reliability and performance of the transmission. Gears are the internal transmission components of a fan, used to transfer the power transmitted by the driving device to the impeller.
5. Oil tank: The oil tank is mainly used to store lubricating oil for lubricating gears and bearings. Good lubrication is crucial for ensuring the smooth operation and extending the service life of the fan.
5. Muffler: Muffler is used to reduce the noise generated by airflow pulsation during the intake and exhaust process of Roots blower. This helps create a quiet working environment and reduce noise pollution.
6. Drive device: The drive device is the power source of the three blade Roots blower, which can be an electric motor or a diesel engine. It is used to drive the impeller to rotate, thereby achieving gas delivery and pressurization.
In summary, the compact structure and reasonable design of the Three Leaf Roots blower ensure the stable operation of the blower through the coordinated work of its various components.
