Lifting device and lifting method for steam turbine rotor

Abstract

The invention belongs to the technical field of mechanical equipment maintenance, and particularly relates to a steam turbine rotor lifting device and a lifting method. According to the invention, the whole body of the lifting beam lifting point penetrates through the lifting beam main body, is welded with the middle position of the lifting beam main body, and is a lifting point of the lifting device; the hanging beam hanging belts are hung on the hanging beam body through the sliding saddles and distributed on the two sides of the hanging beam body in a central symmetry mode, and the sliding saddles can slide on the hanging beam body. The steam turbine rotor hanging belt is connected with the hanging beam hanging belt; the steam turbine rotor hanging belt is sleeved on a steam turbine rotor; the sleeve is fastened on the lifting beam lifting lug, the pin shaft is installed in the sleeve, a thread is arranged in the center of the pin shaft, the pin shaft is connected with the screw rod in a matched mode and used for connecting the lifting beam lifting lug with a crane lifting hook, and the pulley A is fastened on the screw rod and integrated with the screw rod. And the crane lifting hook, the lifting beam and the lifting point form a lifting device bearing point. The lifting device is simple in structure, easy to operate, convenient to maintain, high in universality and capable of being used for lifting any similar rotor parts within the rated load of the lifting beam.

Description

technical field [0001] The invention belongs to the technical field of mechanical equipment maintenance, and particularly relates to a steam turbine rotor hoisting device and a hoisting method. Background technique [0002] A steam turbine, also known as a steam turbine engine, is a rotary steam power device. The high-temperature and high-pressure steam passes through a fixed nozzle to become an accelerated airflow and then sprays it onto the blades, causing the rotor with the blades to rotate while doing external work. Steam turbines are widely used and are the main equipment for modern thermal power stations, nuclear power stations, biomass power generation and so on. [0003] A certain type of steam turbine, single-shaft four-cylinder six-exhaust steam reheating condensing type, output 1,127,000kW (before capacity increase) [0004] / 1176000kW (after capacity increase), speed 1500 rpm, frequency 50Hz, equipped with three low-pressure rotors and one high-pressure rotor wi...

AI Technical Summary

Problems solved by technology

Since the steam inlet and exhaust pipes of this type of steam turbine are located on the top of the cylinder, it will consume a lot of manpower and material resources to remove the pipes, and the workload of hoisting will increase, which will increase safety hazards

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