Long axis liquid pump _ Long axis liquid pump maintenance _ Long axis liquid pump installation

It is reported that the long axis of the submerged pump for conveyor belt particles, high viscosity, acid, alkali, salt, strong Oxidants and other corrosive media. The following Asian Fluid Network Xiaobian introduce you to the long shaft liquid pump maintenance and installation of knowledge. Long axis submerged pump _ Long axis submerged pump maintenance _ Long axis submerged pump installation Long axis submerged pump maintenance 1, Long axis submerged pump maintenance According to the technical status monitoring data to determine the maintenance project, you can press Periodic preventive checks, the repair of defective parts or replacement. 2, the maintenance of long axis liquid pump Dismantling replacement of the main components, should meet the major maintenance quality standards. Large maintenance projects, content, quality, should meet the following requirements: 1) to remove scale, rust, non-processing surface can be coated with non-toxic water and rust coating; 2) cooling water hole, pressure gauge hole, vent should be unobstructed; ) Shell wall or guide vane erosion thickness exceeds the original wall thickness of 1/3, should be repaired or replaced; 4) Shape and fit tolerances in line with the technical requirements of the drawings 5) After the impeller repair or switch to a new impeller static balance test, Impeller maximum diameter on the static balance of allowable deviation, in line with the current 6) to remove the static unbalance weight, should be ground evenly, keep smooth, the maximum grinding thickness of not more than 1/3 of the original cover thickness; 7) closed impeller Shaft fit tolerances comply with the requirements of H8 / h7 in the current national standard "Tolerance and Fit"; 8) The taper of semi-open impeller and tapered sleeve should be consistent with the contact area not less than 60% of the fit area; 9) Closed impeller Seal ring and impeller with the running clearance, single-stage double-suction centrifugal pump should meet the requirements; long shaft deep well pump and submersible pump should meet the requirements. When the wear is more than 50% of the specified clearance in the table, the new seal should be replaced. Long axis liquid pump installation 1, Long axis liquid pump installation Axial thrust to withstand the way: 1), the pump uses an ordinary vertical motor drive, pump rotor weight and axial thrust by the thrust bearing installed in the upper part of the pump . 2) When the pump is driven by a vertical motor with a thrust bearing, the weight of the pump rotor and axial thrust are borne by the thrust bearing in the motor. 3) When the pump is driven by a right-angle gearbox, the weight and axial thrust of the pump rotor are supported by thrust bearings installed in a right angle gearbox. 2, the installation of long-axis liquid pump thrust bearing lubrication: Thrust bearings generally use thin oil lubrication (small pump can also be used grease lubrication). Outside the bearing body can be set cooling jacket, through the cooling water cooling oil temperature. 3, the long axis of the submerged pump installation Guide bearing lubrication: Self-lubricating: If the pump is transported by the media as a clean liquid, the guide bearing can be directly used to transport the media for lubrication. External pressure water lubrication: If the pump medium containing a small amount of impurities, you need to access the external pressure of clean water to lubricate (water pump with self-closing seal system, pump shutdown, self-sealing system to prevent impurities from entering Guide bearing). 4, long axis submerged pump installation method: General pump unit installed on the same base layer. 5, the long axis liquid pump installation outlet position: Under normal circumstances, the outlet located above the base layer, such as user needs can also be located below the basement. Above is the fluid network in Asia Xiaobian brought you the long axis of submerged pump maintenance and installation of long axis submerged pump knowledge. I hope for your help. (Editor: Qian Wen)