Disassembly process of corrosion-resistant centrifugal pumps

　　Disassemble the corrosion-resistant centrifugal pump coupling and set the positioning mark of the coupling

　　Check the concentricity and axial clearance of the coupling and make records

　　Disassemble the auxiliary pipeline

　　Use special tools to disassemble the half coupling of the corrosion-resistant centrifugal pump

　　Loosen the front and rear sealing bolts, and remove the front and rear bearing seats and bearings

　　Measure the single displacement of the corrosion-resistant pump

　　Remove the front and rear seals

　　Remove the balance plate and replace it with a special shaft sleeve with the same length as the balance plate. Tighten the rear shaft sleeve to the original position of the balance plate and measure the total displacement of the pump. After measuring, take out the shaft sleeve and special shaft sleeve

　　After disassembling the large tension bolts on the corrosion-resistant centrifugal pump body, remove the outlet section and the final stage impeller

　　Disassemble the middle section and impeller step by step from back to front in order, and measure the displacement of each stage of impeller. But when measuring, it is necessary to tighten the large bolts and rotor, so that the measured displacement is accurate