Flexible Enclosure for Mobile Explosion Lab Ignition Testing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional ignition hazard testing methods are costly, limited by the size of test chambers, and require long setup times due to the need for large volumes of flammable gases, making it difficult to test larger and more representative components for ignition hazards.
Innovation Solution
A mobile explosion lab system using a flexible enclosure with an indicator gas mixture and an energy source to simulate ignition hazards, allowing for testing of larger components without the need for a full-sized test chamber, by sealing a surface region of the test article with a flexible sheet and applying an energy discharge to detect ignition sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional test chambers are used for ignition hazard testing, then test safety is ensured, but test chamber size and cost increase significantly
Solution Approach 1:
The patent divides the test environment into two separate zones: a hazardous zone containing the flammable gas mixture and test article, and a safe zone containing the test chamber. The flexible enclosure acts as a barrier separating these zones, allowing the test article to be exposed to flammable conditions without requiring the entire test chamber to be filled with flammable gas. This segmentation enables testing of large components while maintaining safety and reducing chamber size requirements.
Solution Approach 2:
The flexible enclosure serves as an intermediary barrier between the test article and the test chamber environment. It contains the flammable gas mixture around the test article while preventing the propagation of potential ignition hazards to the larger test chamber structure. This intermediary approach allows safe testing of large components without requiring a proportionally large test chamber.
2Measurement precision
If large volumes of flammable gases are used to fill test chambers, then ignition hazard detection sensitivity is improved, but test setup time increases
Solution Approach 1:
The patent segments the flammable gas containment to only the necessary volume around the test article using a flexible enclosure, rather than filling an entire large test chamber. This dramatically reduces the volume of flammable gas required, allowing for much faster setup and purging times while maintaining adequate sensitivity for detecting ignition hazards at the test article surface.
Solution Approach 2:
The patent changes the spatial parameter of flammable gas distribution from a large-volume chamber fill to a localized enclosure fill. This parameter change reduces the total volume of flammable gas needed by orders of magnitude, directly reducing setup time while maintaining detection sensitivity through proper gas mixture composition and enclosure positioning.
3Reliability
If conventional test chambers are used, then contained explosion capability is ensured, but testing of large representative components is limited
Solution Approach 1:
The patent segments the containment function to the flexible enclosure that directly surrounds the test article, rather than relying on the test chamber walls. This allows the test article to be as large as needed while the flexible enclosure provides the explosion containment barrier. The segmentation enables testing of full-scale components that would be impossible to fit in conventional rigid test chambers.
Solution Approach 2:
The patent uses a flexible, movable enclosure rather than a fixed rigid chamber structure. This dynamic approach allows the enclosure to adapt to various test article sizes and shapes, enabling testing of large and complex components while maintaining explosion containment capabilities. The flexibility allows the system to accommodate test articles of varying dimensions without requiring a proportionally large fixed chamber.
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
Enables efficient and versatile testing of large structures for ignition hazards, reducing costs and setup times by allowing testing of full-scale components without the need for large test chambers, and facilitating the detection of ignition sources with a flexible and portable system.
Implementation Method 1
The indicator gas mixture may be flammable or non-flammable, and the reaction of the indicator gas mixture due to the energy discharge may be combustion, explosive combustion, and/or thermal decomposition.
Implementation Method 2
applying a flexible sheet over at least a portion of a test article to seal a surface region of the test article from an ambient atmosphere and to form a sealed space between the flexible sheet and the surface region of the test article
Data Source
AI summary
Methods of incendivity testing include applying a flexible sheet over a test article to form a sealed space between the flexible sheet and a surface region of the test article. Methods further include filling the sealed space with an indicator gas mixture, applying an energy discharge to the test article, and determining whether the indicator gas mixture in the sealed space reacted in response to the energy discharge. The indicator gas mixture may be flammable and may be formed while filling the sealed space. Incendivity test systems include the test article, the flexible sheet sealed to the test article to form the sealed space, a gas control module configured to fill, flush, purge, and/or sample gas in the sealed space, and an energy source configured to apply the energy discharge to the test article.