Gas turbine sleeve nut dismounting method
Through a series of decomposition steps, the gas turbine shaft nuts are gradually exposed and removed, which solves the problem of difficulty in disassembling when threads are damaged, and the disassembly effect is achieved without damaging other parts, simplifying the decomposition inspection process of the gas turbine.
CN119703218AActive Publication Date: 2025-03-28CSIC LONGJIANG GH GAS TURBINE CO LTD
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Patent Information
- Application Number
- CN202411639514.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2044-11-18
AI Technical Summary
Technical Problem
The existing gas turbine sleeve nut removal method is difficult to disassemble when the thread is damaged, which can easily damage other parts.
Method used
The sleeve nuts are gradually exposed and removed through a series of decomposition steps, including mounting the low vortex rotor support disc, decomposing the low pressure receiver, mounting the rotor auxiliary support plate and limit block, decomposing bolts and low pressure components, cutting sleeve nuts and mounting transition section adapter discs.
Benefits of technology
The sleeve nut is safely removed without damaging other parts, simplifying the decomposition and inspection process of the gas turbine and reducing operating steps and working hours.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides a gas turbine sleeve nut dismounting method. The gas turbine sleeve nut dismounting method comprises the steps that S1, a low-vortex rotor supporting disc is mounted; s2, a front casing hoisting plate is installed; s3, decomposing the low-pressure casing; s4, mounting a rotor auxiliary supporting plate; s5, mounting a low-voltage part sleeve limiting block; s6, bolts are disassembled; s7, decomposing and disconnecting a low-pressure assembly; s8, cutting a sleeve nut; and S9, a transition section adapter disc is installed. Under the vertical state that the front casing of the unit faces upwards, the low-pressure casing and the connecting piece of the rear shaft neck of the low-pressure rotor are detached, the whole low-pressure part is separated from the unit, the sleeve shaft nut is exposed out of the deep position of the rotor, the operable space is enlarged, stability is improved, and it is guaranteed that other components are not damaged; therefore, normal maintenance and inspection of the gas turbine are ensured.
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