Housing Reinforcement with Support Plates for Crack Stability
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Solution Overview
Problem
In power plants, machine housings like gas turbines and generators face instability and potential shutdown due to cracks in housing parts, leading to premature failure and necessitating immediate replacement, which can result in plant shutdowns if new parts are not readily available.
Innovation Solution
The method involves removing threaded bolts from housing flanges, positioning metallic support plates outside the flanges to align with bolt holes, and re-fastening the housing parts using bolts and nuts through both flanges and support plates, ensuring stability even with cracks, allowing time for new parts to be produced or delivered without shutting down the machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the housing is monitored for cracks and new housing parts are produced/replaced upon detection, then the housing stability is maintained, but the machine shutdown time increases due to production and delivery delays
Solution Approach 1:
The patent applies preliminary action by installing support plates on the housing flanges before cracks develop or immediately upon detection. This preparatory measure ensures that when a crack is detected, the housing can be quickly stabilized without waiting for new housing parts to be produced and delivered, thereby reducing machine shutdown time while maintaining housing stability
Solution Approach 2:
The support plates serve as an intermediary element between the housing flanges and the external environment. These plates bridge the structural gap created by cracks, providing temporary reinforcement that maintains housing stability without requiring immediate replacement of the entire housing, thus avoiding prolonged machine shutdowns
2Reliability
If the threaded bolts are removed and support plates are installed to stabilize housing parts, then the housing stability is improved even with cracks, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the housing into separable parts (upper and lower housing sections connected by flanges) and introducing discrete support plates at specific locations. This modular approach allows the support plates to be independently installed and removed without affecting the entire housing structure, providing simplified temporary reinforcement compared to replacing the whole housing
Solution Approach 2:
The support plates function as temporary, disposable reinforcement elements that can be quickly installed and removed. They provide short-term stability during the critical period between crack detection and permanent repair, without the need for complex permanent modifications to the housing structure
Data Source
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AI summary
The invention relates to a method for provisionally ensuring the functional capability of a housing of a machine in the event of damage to the housing, the housing having a housing upper part and a housing lower part, which are detachably fastened to each other by means of housing flanges and by means of threaded bolts that extend through the housing flanges and are secured by means of nuts, the damage to the housing being at least one crack in one of the housing parts, which extends toward the other housing part. According to the invention, the housing is reinforced by means of support plates, which are each fastened to the outside of the housing flanges. The invention also relates to a housing reinforced by means of support plates of this type.