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In the carbon bowl vacuum cleaning system, the most common failure in operation is the blocking of the pipeline and the wear of the pipeline. If it is not processed in time, it will affect the normal operation of the system.
The plugging is in the process of sucking, because the material settles at the bottom of the tube to form a mass of material, or sticks to the wall of the tube and gradually thickens, and develops to fill the interface of the whole pipe, so that the material can not pass, and the transportation stops. The main reason is the influence of material properties and the quality of the pipeline. Because the performance of the filler is relatively stable, the main cause of the plugging is the quality of the pipeline. The influence of pipeline quality includes misalignment of joints in pipelines, roughening of inner wall of pipelines, or wear-repair, failure to clear internal defects, internal crimping of pipelines, etc., resulting in increased local resistance to form plugging; , so that the midway leak, the gas velocity will cause blockage; reduce the radius of curvature in the elbow maintenance, so that increasing the resistance will cause blockage; gas source parameters change, instability can also cause blockage; improper operation method, Unreasonable design parameters and pipeline layout are also the cause of congestion.
During the suction process of the filler, due to the contact between the filler and the equipment, the inner wall of the pipeline and relative movement, friction will cause the inner wall of the pipeline to wear. The wear of the elbow is larger in actual production, and the wear amount is 10 to 100 times that of the straight pipe. Reducing wear and tear mainly uses wear-resistant materials and piping design. In material selection, wear-resistant and economical materials can be used.
The use of different elbow structures to reduce the wear of the bends includes: thickening the thickness of the elbow at the wearable part; designing the structure for easy replacement and maintenance; filling the wearable parts with the material to reduce the wear; changing the shape of the elbow and reducing the flow rate of the elbow; Method. For horizontal and inclined pipelines, the bottom is generally worn out and can be rotated by 90° for a period of time to extend the pipeline life.
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