Filter Unit Quality Management System for Gas Turbine Intake
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Solution Overview
Problem
Large machines, such as gas turbines, face challenges in managing the filter life of filter units due to the accumulation of foreign substances, leading to increased maintenance costs and difficulties in predicting filter replacement needs, as existing methods rely on differential pressure measurements that require extensive worker involvement and are not precise enough to identify clogging in individual filters within a filter layer.
Innovation Solution
A filter unit quality management system with evaluation parameter detection units for each filter layer, which detect and distribute evaluation parameters like differential pressure and flow rate to determine the quality of each filter layer, allowing for precise evaluation and identification of clogging, thereby enabling targeted maintenance and reducing economic burdens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If differential pressure measurement is used to evaluate filter life, then filter performance can be monitored, but it requires extensive worker involvement and cannot precisely identify clogging in individual filters
Solution Approach 1:
The patent divides the filter unit into multiple filter layers, with each layer containing multiple filters. Evaluation parameter detection units are individually assigned to each filter layer to detect evaluation parameters (such as differential pressure, flow rate, or clogging degree) separately. This segmentation enables precise identification of which specific filter layer is clogged, transforming the inability to locate individual filter issues into a capability for targeted maintenance.
Solution Approach 2:
The system automatically detects evaluation parameters from each filter layer and determines quality distribution without requiring manual inspection or worker involvement. The quality evaluation unit processes detection values automatically to identify clogged filter layers, enabling the system to self-diagnose maintenance needs and eliminate complex manual operations.
2Reliability
If all filters in a filter layer are replaced when clogging is detected, then filter unit quality can be maintained, but maintenance costs and downtime increase significantly
Solution Approach 1:
Instead of replacing all filters in a filter layer uniformly, the patent identifies the specific filter layer with clogging based on evaluation parameter detection. Only the clogged filter layer (or specific filters within it) is replaced, while other functional filter layers continue to operate. This localized maintenance approach maintains filter unit quality by addressing only the problematic area, significantly reducing maintenance costs and downtime compared to blanket replacement.
3Quantity of substance
If multiple filter layers are used to increase filtration capacity, then foreign substance removal improves, but determining which specific layer is clogged becomes difficult
Solution Approach 1:
The patent equips each filter layer with its own evaluation parameter detection unit, segmenting the monitoring function across all layers. This allows the system to independently measure evaluation parameters (differential pressure, flow rate, clogging degree) for each filter layer, making it straightforward to identify which specific layer is clogged even when multiple layers are stacked for high filtration capacity.
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 system allows for precise quality control and accurate prediction of filter life, reducing maintenance costs and preventing failures by quantitatively evaluating filter performance and identifying clogging in specific areas, thus optimizing filter replacement and operation.
Implementation Method 1
the inlet pressure and outlet pressure of the filter element are measured, and the state of the filter element is evaluated based on the differential pressure between them
Implementation Method 2
a filter device for removing foreign substances such as dust contained in the gas
Data Source
AI summary
The present application relates to a system for quality management of a filter unit disposed in an intake passage. The system includes a plurality of evaluation parameter detection units configured to detect an evaluation parameter relating to of each filter constituting a filter layer of the filter unit. By determining a distribution of the evaluation parameter based on the detection values, the quality evaluation is performed.