A device and method for disassembling and disassembling pivot sleeves of inlet valves in energy storage power stations

Abstract

The invention discloses a disassembly and assembly device and method for pivot sleeve of water inlet valve of storage power station. The disassembly and assembly device comprises a hydraulic pump, a flow distributor, hollow jacks, stress guide screws, a combined stress suite and pivot sleeve connection screws. The flow distributor is connected with the hydraulic pump and the hollow jacks. The combined stress suite comprises a stress disk and a stress sleeve, and the stress disk and the stress sleeve are assembled in a welded mode. Stress guide screw holes are distributed in the stress disk. Connection screw holes are distributed in the stress sleeve. The disassembly and assembly device is used for disassembly and assembly of the pivot sleeve, thus the work efficiency can be improved, the number of operating personnel can be reduced, repeated disassembly and assembly procedures in a pivot sleeve reassembly link can be omitted, the time for pivot sleeve reassembly and the time when the cold-contracted pivot sleeve is exposed in the normal temperature environment are reduced, and accordingly the installation quality and the safety of equipment of the pivot sleeve are ensured. Meanwhile, the pivot sleeve is stressed uniformly, the problem that the pivot sleeve needs to be pulled out again for reworking due to clamping and blocking in the reassembly process is avoided, uncontrollable factors of pivot sleeve maintenance are reduced, and thus the whole progress of unit maintenance is ensured.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a device and method for disassembling and disassembling a pivot sleeve of an inlet valve of an energy storage power station. Background technique [0002] At present, pumped storage power plants, as an outstanding representative of new energy, are closely related to national policies on energy conservation, emission reduction, and environmental protection. They can cooperate with the operation of thermal power and nuclear power, optimize the grid structure, and ensure grid stability. One of the main structures of the energy storage power station includes a water diversion system, which includes a water inlet gate, a water delivery penstock, and a water inlet valve. Among them, the water inlet valve is divided into two parts: the valve body and the valve plate. The valve body is the shell of the water inlet valve, and the valve body is an integral casting, with shaft holes on both s...

AI Technical Summary

Problems solved by technology

[0003] The existing water inlet valve pivot sleeve disassembly and assembly device has many parts and complicated operation, so the process of disassembling and assembling the shaft sleeve is time-consuming and laborious, and there are many uncertain factors, which easily affects the maintenance period. If the sleeve is exposed to the normal temperature environment for too long, it will affect its shrinkage effect, which is not conducive to the reassembly of the sleeve

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