Gas Turbine Filter Orientation Assembly
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Solution Overview
Problem
Existing gas turbine filtration systems face issues with incorrect filter orientation and the use of unsuitable filters, which can lead to reduced performance and efficiency due to improper drainage and contamination, causing damage to compressor blades and other components.
Innovation Solution
A filtration system with a holding frame and orientation assembly that includes a positioning rod and slots to ensure correct filter orientation, ensuring pleats are vertically positioned for efficient drainage and allowing only authorized filters to be used.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If square filters are installed in holding frames without orientation control, then installation is simple and quick, but the filters may be installed in the wrong orientation leading to poor drainage and reduced performance
Solution Approach 1:
The patent applies asymmetry by providing positioning elements (protrusions) on only specific sides of the holding frame that correspond to specific sides of the filter. This asymmetric configuration ensures the filter can only be installed in the correct orientation, as rotating it would prevent proper engagement of the positioning elements with their corresponding recesses or seals.
Solution Approach 2:
The positioning elements act as intermediaries between the holding frame and the filter. These elements mediate the orientation relationship by physically guiding the filter into the correct position through shaped recesses or engagement features that only accommodate the proper orientation.
2Adaptability or versatility
If any filter can be installed in the holding frame, then versatility is high, but unsuitable filters may be used causing damage to compressor components
Solution Approach 1:
The patent applies local quality by providing sealing surfaces and positioning elements at specific locations on the holding frame that correspond to specific features on authorized filters. This localized configuration ensures that only filters with the matching local features (proper seals, positioning recesses) can be correctly installed, thereby preventing unauthorized or unsuitable filters from being used.
Solution Approach 2:
The asymmetric positioning elements and sealing surfaces create an orientation-dependent interface that only accommodates authorized filters with the correct configuration, preventing incompatible filters from being installed in the wrong orientation or at all.
3Loss of time
If filters are installed without orientation control, then installation time is reduced, but drainage efficiency deteriorates due to horizontal pleat orientation
Solution Approach 1:
The patent applies preliminary action by pre-configuring the holding frame with positioning elements and sealing surfaces that automatically guide the filter into the correct vertical orientation during installation. This preliminary orientation guidance ensures that when the filter is installed, the pleats are automatically positioned vertically for optimal drainage, eliminating the need for post-installation adjustment.
Solution Approach 2:
The asymmetric positioning elements ensure that the filter can only be installed with pleats in the vertical orientation, as any other orientation would prevent proper engagement of the positioning features. This forces the correct orientation that enables efficient drainage.
Data Source
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AI summary
The present application provides a filtration system for a gas turbine engine. The filtration system may include a holding frame with a positioning element extending therefrom and a filtration unit for mounting within the holding frame. The filtration unit may include a positioning slot therein such that the positioning element extends through the positioning slot when the filtration unit is mounted within the holding frame.