Roots blower is a positive displacement fan with simple structure and convenient manufacturing. It is widely used in aquaculture oxygenation, sewage treatment aeration, cement transportation, gas transportation and pressurization system in low pressure situations, and can also be used as a vacuum pump.
Roots blower bearing
Characteristics of Roots blower bearing
Roots blower bearings are generally required to be stronger than bearings in other industries in terms of strength, wear resistance and temperature resistance, so as to ensure their long-term operation in complex and difficult maintenance environment.
Roots blower is mostly used in the working environment with complex working conditions and high operating load, so the bearing of Roots blower must also be able to adapt to high temperature, humidity, corrosion and wear environment.
The safe operation and service life of Roots blower is closely related to its bearing selection.
Sealing of Roots blower bearing
During the use of Roots blower, the bearing may be damaged prematurely due to impurities in the bearing or uneven lubrication, resulting in paralysis of Roots blower during operation. Therefore, the sealing technology of bearing is very important
The shaft seal devices of Roots blower include expansion ring type, labyrinth type, packing type, mechanical seal type, skeleton rubber shaft seal, etc. When pressing the air, the expansion ring type, labyrinth type, packing type and skeleton rubber type shaft seal devices can be used. There are four shaft seals in the casing penetration part. In order to reduce the axial length, the seal is close to the bearing. When pressing oxygen, nitrogen and dioxide gas, mechanical seal can be applied and the lubricating oil of bearing and gear box can be completely isolated from the gas.
Roots blower is a positive displacement fan with simple structure and convenient manufacturing. It is widely used in aquaculture oxygenation, sewage treatment aeration, cement transportation, gas transportation and pressurization system in low pressure situations, and can also be used as a vacuum pump.