Gas Turbine Modular Disassembly for Maintenance Adaptability
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Solution Overview
Problem
The existing fixed assembly and disassembly processes for gas turbines are inefficient in handling various maintenance and replacement scenarios, leading to increased workload and costs.
Innovation Solution
A method is developed to provide multiple assembly and disassembly processes for different components of a gas turbine section, allowing for flexible disassembly and reassembly based on specific circumstances, including sequential steps for disassembling combustor assemblies, vane assemblies, blade assemblies, and bearing assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed assembly and disassembly process is used for gas turbines, then the process is simple and standardized, but it is ineffective for various maintenance scenarios and increases workload
Solution Approach 1:
The patent segments the gas turbine into multiple modular sections (combustor section, turbine section, generator section, etc.) that can be independently disassembled and assembled. Each section has standardized connection interfaces, allowing maintenance personnel to selectively disassemble only the required section rather than the entire turbine, thereby improving adaptability to different maintenance scenarios while maintaining process simplicity through standardization.
Solution Approach 2:
The patent introduces a dynamic assembly and disassembly process that adapts to different maintenance needs. The standardized modular design allows the system to flexibly respond to various scenarios by enabling selective disassembly of specific sections based on the maintenance requirements, transforming the rigid fixed process into a dynamic adaptable one.
2Productivity
If a fixed assembly and disassembly process is used for gas turbines, then the process is standardized, but it increases time and cost for maintenance operations
Solution Approach 1:
By dividing the gas turbine into independent modular sections with standardized interfaces, the patent enables maintenance personnel to disassemble and service only the specific section requiring maintenance rather than the entire turbine. This segmentation significantly reduces the time and resources required for maintenance operations while maintaining standardized procedures.
Solution Approach 2:
The standardized modular design with pre-defined connection interfaces allows for preliminary preparation of assembly components and procedures. Maintenance personnel can prepare replacement parts and assembly tools in advance according to the known module requirements, reducing on-site assembly time and improving overall maintenance efficiency.
Data Source
AI summary
A method of assembling and disassembling a gas turbine carries out various disassembly and reassembly processes depending on circumstances. In one process, a first-stage blade assembly and a first-stage vane assembly of a turbine section are disassembled from a gas turbine by sequential steps of disassembling a combustor assembly; disassembling a first-stage vane assembly; and disassembling a first-stage blade assembly. In another process, a fourth-stage blade assembly of a turbine section is disassembled from a gas turbine by sequential steps of disassembling a diffuser loading slot from a rear diffuser; and disassembling a fourth-stage blade assembly from a turbine disk. In another process, a rear bearing assembly of a turbine section is disassembled from a gas turbine by sequential steps of disassembling a rear diffuser cover from a rear diffuser; and supporting one end of a rotor shaft and disassembling a rear bearing from a rotor shaft support.