Special device and method for moving out and reassembling impeller during overhaul of pump station unit

Abstract

The invention discloses a special device and method for moving out and reassembling an impeller during overhaul of a pump station unit. The special device comprises a lifting assembly which is arranged in a coupling layer, is installed between a coupling flange and a top cover, and is used for descending and lifting the top of a water pump shaft; a translation assembly which comprises a movable pallet truck and a guide rail assembly, wherein the movable pallet truck is used for bearing an impeller head, the guide rail assembly is used for bearing the movable pallet truck, and the guide rail assembly is installed on a telescopic joint; and a gantry crane which is arranged above the other side of the guide rail assembly and used for hoisting the movable pallet truck and the impeller head. The impeller head can be moved out of an impeller chamber to be overhauled through the cooperation of the lifting assembly, the translation assembly and the gantry crane without lifting out parts such as an electric motor and the water pump shaft, the maintenance process is simple, the overhaul period is short, the cost is low, practicability and convenience are achieved, operation is easy, the unit subjected to overhaul is smaller in throw, more stable and efficient in operation, and the device is worthy of popularization.

Description

Technical field: [0001] The invention relates to the technical field of maintenance of pumping station units, in particular to a special device and method for removing and reinstalling impellers for pumping station unit overhaul. Background technique: [0002] The overhaul project of the pumping station unit generally mainly includes the main unit disassembly, installation, measurement, pressure test, lifting and hoisting, welding, training, etc. Strong professionalism, various contents and complicated procedures. During the implementation period, the safety production work must be carried out strictly according to the regulations, the monitoring and re-inspection weight must be strictly controlled, and the key elements of the installation weight should be grasped, such as the concentricity and elevation of the fixed part, the axis swing, verticality, levelness and clearance of the rotating part Wait. [0003] The main building of the pumping station is arranged from top t...

AI Technical Summary

Problems solved by technology

[0005] In order to make up for the deficiencies of the prior art, the present invention provides a special device and method for removing and reassembling the impeller of the pumping station unit overhaul, which solves the problem that mechanical equipment such as large forklifts with small operating space cannot enter, and solves the problem of complicated maintenance procedures in the past. , long overhaul period and high cost consumption

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