Method for replacing sealing part of operation oil pipe utilizing tackle device

Abstract

The invention relates to the technical field of water turbines, in particular to a method for replacing a sealing part of an operation oil pipe utilizing a tackle device. The method involves the tackle device, wherein the tackle device comprises a base, a jack and a supporting plate; and rolling wheels are arranged at the bottom of the base, the bottom end of the jack is fixedly connected to the base, and the supporting plate is connected to the top end of the jack. The method for replacing the sealing part of the operation oil pipe utilizing the tackle device has the beneficial effects that extra welding of angle steel is not needed in the replacement process of the sealing part, so that the replacement efficiency of the sealing part is greatly improved, the workload of operators is reduced, fire operation is effectively avoided, and the operation safety is improved; and the tackle device is high in flexibility, the weight of the operation oil pipe can be stably borne, and the position of the operation oil pipe can be adjusted in the vertical direction and the axial direction, so that convenience in the replacement process of the sealing part is improved.

Description

technical field [0001] The invention relates to the technical field of water turbines, in particular to a method for replacing sealing parts of operating oil pipes by utilizing a pulley device. Background technique [0002] When the axial-flow rotary paddle turbine unit is disassembled and overhauled, it is necessary to replace the sealing packing at the flange of the operating oil pipe of the control blade inside the main shaft of the runner to prevent the flange seal of the operating oil pipe from appearing after the unit is overhauled and put into production. Oil leakage affects the adjustment and control of the angle opening of the runner blades of the unit, which in turn affects the adjustment of the operating load of the unit, which is not conducive to the safe and stable operation of the unit. [0003] In the past, the replacement method for the sealing part of the operating oil pipe is to remove the flange bolts of the two connected operating oil pipes, and then weld...

AI Technical Summary

Problems solved by technology

However, due to the narrow space inside the shaft of the axial flow paddle turbine, and the long-term immersion in the turbine oil, it is prone to slipping and mechanical damage. In addition, when using the traditional method to replace the sealing parts, welding is required The hot work of angle steel has a large workload and low efficiency, and there is also a safety hazard of sudden fire

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