Roots Blower The phenomenon that the surface material of the air shutoff parts is constantly lost due to friction is called abrasion. The wear process of the parts of the air shut varies greatly with the friction form, environmental conditions and surface contact conditions. Taking Roots blower as an example, the material wear produced by it will roughly go through the following three stages: 1. Initial wear stage The initial wear stage is the stage of material wear. At this time, the unevenness, oxide layer and decarburized layer on the surface between blower parts are quickly smoothed due to the operation of Roots blower parts. As the impeller of Roots blower runs without friction in the body, it does not need lubrication, so the discharged gas does not contain oil. It is the ideal pneumatic conveying gas source for chemical industry, food industry and other industries. At this time, the equipment can show high production efficiency, but this period of time is relatively short.
2. Normal wear stage This stage is the second stage of material wear. Generally, the wear of Roots blower parts increases at a constant speed and slowly with time. The equipment can have high productivity and processing quality, and this stage takes a long time. 3. Sharp wear stage This stage is the third stage of material wear. At this time, the normal wear relationship has been destroyed, which makes the wear increase sharply, and then causes the damage of stainless steel blower parts and equipment shutdown. Roots blower is a volumetric blower. When in use, the flow changes little with the change of pressure. However, the flow varies with the speed. Therefore, the selection range of pressure is very wide, and the selection of flow can be achieved by selecting the speed. As the impeller of Roots blower operates in the body without friction, it does not need lubrication, so that the discharged gas does not contain oil. It is the ideal pneumatic conveying gas source for chemical industry, food industry and other industries. Before that, the precision, performance and productivity of the equipment were greatly reduced. Therefore, it is generally not allowed to use the roots blower parts to the severe wear stage. When the roots blower parts tend to the later stage of the normal wear stage, they should be repaired or replaced, and the time of this stage is also short.
