Flexible Thermal Protection System for Fire Safety
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Solution Overview
Problem
Current fire shelters, such as the M2002, while effective in reflecting thermal radiation, lack a flexible and lightweight solution that can provide comprehensive protection against high-intensity heat sources, particularly in dynamic and unpredictable firefighting scenarios where personnel may be trapped, requiring a system that can be easily transported and deployed to maintain a safe environment.
Innovation Solution
A portable, lightweight flexible thermal protection system comprising multiple layers: a refractory textile layer for heat resistance, a thin film insulator layer for reduced heat transfer, and a non-porous gas barrier layer, optionally with a radiation protection layer, joined by high-temperature adhesives or stitching, allowing for various forms like a sleeping bag, tent, or wrap, to create a compact and effective heat barrier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a traditional fire shelter design is used, then thermal radiation reflection is effective, but the system is not flexible and lightweight enough for dynamic firefighting scenarios
Solution Approach 1:
The patent employs flexible thermal protection layers including a refractory textile layer, thin film insulator layer, and non-porous gas barrier layer that can be conformally applied to various shapes and sizes. These flexible layers allow the shelter to adapt to different geometries while maintaining thermal protection, resolving the contradiction between lightweight flexibility and thermal effectiveness.
Solution Approach 2:
The patent uses composite material construction combining multiple layers with different functions: refractory textile for heat resistance, thin film insulator for reduced heat transfer, and non-porous film for gas barrier. This composite approach achieves comprehensive thermal protection while maintaining flexibility and lightweight characteristics.
2Ease of operation
If a traditional fire shelter design is used, then thermal radiation reflection is effective, but the system is not portable enough for dynamic deployment
Solution Approach 1:
The flexible, conformally applicable layers enable the shelter to be easily transported and deployed in dynamic firefighting scenarios while maintaining reliable thermal protection through their multi-layer composite structure designed for high-temperature resistance.
3Object-affected harmful factors
If multiple protective layers are added, then comprehensive heat protection is achieved, but the system complexity increases
Solution Approach 1:
The patent divides the thermal protection system into distinct functional layers: refractory textile layer for heat resistance, thin film insulator layer for reduced heat transfer, and non-porous gas barrier layer for gas sealing. This segmentation allows each layer to perform its specific function efficiently while maintaining overall system manageability.
Solution Approach 2:
The composite material structure combines multiple protective functions into an integrated multi-layer system that achieves comprehensive heat protection against convective and radiant heat while maintaining reasonable system complexity through functional integration.
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
The system effectively protects against convective and radiant heat, maintaining a safe environment at temperatures up to 3000 degrees F for ten minutes, while being compact and portable, suitable for firefighters and equipment, and resistant to direct flames and high-velocity gases.
Implementation Method 1
a second layer formed from insulator material or materials
Implementation Method 2
a third layer formed from a non-porous film which forms a gas barrier
Implementation Method 3
a fourth layer formed of a material to provide radiation protection
Data Source
AI summary
A portable thermal protection system is provided for protecting equipment, facilities, and personnel in a region from a high intensity incident heat source. The system can be formed as a sleeping bag, a tent, a blanket, a sleeping bag, a vertical barrier, a curtain, a flexible rollup doorway, or a wrap. The system includes an outer textile layer first layer, an insulative material(s) second layer, and a non-porous film third layer which forms a gas barrier. Some embodiments include a fourth layer formed of a material to provide radiation protection. In some embodiments, the first and/or second layers are integrally formed with the materials that reflects radiation. The layers are joined together by high-temperature adhesives, stitching, needling, or tacking.