Rapid Access Fire Barrier Panel System for Navy N-30 Standards
Solution Overview
Problem
Current fire insulation systems fail to meet the stringent N-30 fire protection and shock standards required by the US Navy, particularly in severe fire situations, and lack ease of installation and removal for maintenance or inspection.
Innovation Solution
A rapid access fire protection panel system with expandable insulation, a rigidized metal outer layer, multiple insulation layers, a reflector layer, and a protective cover, designed to meet N-30 standards, featuring stainless steel panels with propeller-shaped dimples to prevent warping and crumpling, and a sub-frame channel system with high-density insulation that expands significantly with heat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional surface mounted wrap insulation is used, then installation is simple, but maintenance costs are high and access for inspection is difficult
Solution Approach 1:
The fire insulation system is divided into discrete removable panels that can be individually accessed, removed, and replaced. Each panel is a separate module that can be quickly detached from the grid support structure, enabling easy maintenance and inspection without requiring removal of the entire insulation system.
Solution Approach 2:
The panel system transitions from a fixed conventional wrap insulation to a dynamic removable panel configuration. The panels can be rapidly installed and removed using quarter turn corner plates and screwed on cover strips, allowing the system to adapt between providing continuous fire protection and enabling easy access for maintenance.
2Strength
If rigid metal outer layer is used without dimples, then structural strength is high, but thermal expansion causes warping and crumpling under extreme heat
Solution Approach 1:
The metal outer layer incorporates localized dimples at specific positions and patterns throughout the panel surface. These dimples create localized compliance zones that allow controlled deformation and thermal expansion, preventing overall warping and crumpling of the rigid metal layer while maintaining its structural strength and fire protection integrity.
3Device complexity
If single layer insulation is used, then device complexity is low, but thermal resistance is insufficient for N-30 standards
Solution Approach 1:
The insulation system uses a composite multi-layer structure combining different insulation materials with complementary properties. The first high density insulation layer provides immediate thermal resistance, the reflector layer redirects thermal radiation, and the second low density insulation layer provides additional thermal barrier, collectively achieving N-30 fire protection standards.
Solution Approach 2:
The insulation system adds dimensional complexity by stacking multiple insulation layers in the thickness dimension rather than relying on a single thick layer. This multi-layer approach creates a more effective thermal barrier through sequential resistance layers, including the reflector layer positioned between the insulation layers to redirect heat.
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 meets N-30 fire protection and shock standards, allowing for rapid installation and removal, reducing maintenance costs, and providing enhanced thermal resistance and shock resistance, as proven by actual tests.
Implementation Method 1
The second insulation layer is a high-density insulation and is expandable by at least a factor of four with the application of heat from a hydrocarbon fire.
Implementation Method 2
a reflector layer positioned between the first layer and the second layer
Implementation Method 3
a rigidized metal outer layer comprising a plurality of dimples designed to absorb effects of thermal expansion resulting from extreme heat in order to avoid warping or crumpling of the metal outer layer
Data Source
AI summary
A rapid access fire protection panel system for applications requiring fire protection against severe fire situations. The system is a panel system that can be rapidly installed and rapidly removed for periodic maintenance or inspection. The panel system includes a special expandable insulation. A first preferred embodiment of the present invention includes: insulated sub-frame channels, corner support brackets, intermediate clips, insulated panels including a rigidized metal outer layer, cover strips, cover plates, insulated light panels and cable gland recess penetrations. A preferred embodiment of the present invention is specifically designed to meet the N-30 requirements of the United States Navy.