Offshore Turbomachinery Power Module Assembly With Torque Tube Baseplate
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Solution Overview
Problem
The installation of gas turbines and associated equipment on offshore platforms is complex and time-consuming due to the need for on-site assembly of numerous parts, leading to increased costs and prolonged commissioning times, as well as limitations in using standardized packages.
Innovation Solution
A turbomachinery installation design featuring a preassembled power module with a torque tube baseplate and supporting baseplate, where the power module includes a gas turbine and load, enclosed by a structure, and auxiliary equipment is integrated below the supporting baseplate, coupled to the torque tube baseplate using adjustable jacking screws and spherical joints to accommodate platform deformability, allowing for efficient transport and rapid assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the train system and baseplate are designed and realized by different subjects in different factories, then specialization and division of labor are improved, but the installation time and technical adaptations required increase
Solution Approach 1:
The power module is pre-assembled on a supporting baseplate at the factory before transport to the offshore platform. This preliminary assembly includes mounting the gas turbine, generator, and auxiliary equipment on the baseplate, so that upon arrival only coupling to the torque tube baseplate is required, dramatically reducing on-site installation time while maintaining manufacturing specialization
2Ease of operation
If all equipment is installed over the torque tube baseplate on-site, then flexibility in installation is improved, but the total footprint and complexity increase
Solution Approach 1:
The installation system is segmented into two main parts: a pre-assembled power module containing the gas turbine, generator, and auxiliary equipment mounted on a supporting baseplate, and the torque tube baseplate fixed to the offshore platform. This segmentation allows the power module to be manufactured and tested separately, then coupled as a complete unit to the torque tube baseplate using adjustable coupling members, reducing overall installation complexity
3Ease of operation
If auxiliary equipment is installed over the torque tube baseplate, then installation flexibility is maintained, but the footprint of the installation increases
Solution Approach 1:
Auxiliary equipment is relocated from the horizontal plane (installed over the torque tube baseplate) to the vertical dimension (installed below the supporting baseplate). This dimensional reorganization utilizes the space underneath the power module, effectively reducing the horizontal footprint of the installation on the offshore platform while maintaining all necessary installation connections
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enables faster installation and commissioning of gas turbines on offshore platforms, reduces the overall footprint, and allows for the same unit to be used for both onshore and offshore installations, while minimizing the need for extensive on-site assembly and reducing design and production costs.
Implementation Method 1
The coupling members are arranged between the supporting baseplate and the torque tube baseplate. The turbomachinery installation comprises spherical joints or anti-vibration mounts arranged below the torque tube baseplate, to compensate for the deformability of the offshore platform.
Implementation Method 2
The turbomachinery installation comprises spherical joints or anti-vibration mounts arranged below the torque tube baseplate, to compensate for the deformability of the offshore platform.
Data Source
AI summary
A turbomachinery installation for an offshore platform is disclosed. The turbomachinery installation comprises a train system having at least one preassembled power module, and a torque tube baseplate, on which the train system is installed. A supporting baseplate of the power module is coupled with the torque tube baseplate. Also disclosed is a method of assembling a turbomachinery installation.