Halogenated Fire Extinguishing Compounds Replacing Halon 1301
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Solution Overview
Problem
The depletion of Halon 1301, a banned but previously predominant fire extinguishing agent, necessitates the development of new fire extinguishing compounds and units that can effectively replace it, particularly for aircraft applications where current supplies are limited.
Innovation Solution
The development of novel halogen-containing compounds with specific fire extinguishing properties, including formulas such as 2-iodoperfluoro-1-butene and 2,3-dibromo-4,4,4-trifluoro-1-butene, which are integrated into fire extinguishing units with delivery systems for effective flame suppression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Halon 1301 is used as fire extinguishing agent, then fire suppression effectiveness is achieved, but the substance is banned and supply will be depleted
Solution Approach 1:
The patent modifies the chemical structure of fire extinguishing compounds by changing parameters such as halogen types (F, Cl, Br, I) and their positions in the molecular structure. This allows development of alternative compounds that replace banned Halon 1301 while maintaining fire suppression effectiveness through optimized chemical parameters.
Solution Approach 2:
The patent creates composite fire extinguishing compounds by combining multiple halogenated functional groups within a single molecular structure. These composite molecules integrate the beneficial properties of different halogen substitutions to achieve both effectiveness and regulatory compliance.
2Quantity of substance
If new fire extinguishing compounds are developed to replace Halon 1301, then supply sustainability is improved, but compound complexity increases
Solution Approach 1:
The patent systematically varies chemical parameters (halogen types, molecular length, substitution patterns) to generate a series of compounds with progressively improved properties. This parameter optimization approach manages complexity by following structured chemical design rules rather than random molecular generation.
Solution Approach 2:
The patent divides the complex fire extinguishing function into multiple molecular components, each with specific halogen substitutions serving particular functions. This segmentation allows independent optimization of different molecular regions while maintaining overall system effectiveness.
3Reliability
If specific halogen substitutions are made in the compound structure, then fire extinguishing performance is enhanced, but manufacturing difficulty increases
Solution Approach 1:
The patent optimizes manufacturing feasibility by selecting halogen substitution patterns that can be achieved through established chemical synthesis methods. The molecular structures are designed with reasonable synthetic pathways, avoiding extremely complex multi-step processes while maintaining high fire extinguishing performance.
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
These compounds demonstrate acceptable to very good abilities in extinguishing heptane flames and can be used in various fire extinguishing applications, including aircraft, offering a viable alternative to Halon 1301 by providing effective fire suppression in different scenarios.
Implementation Method 1
new compounds with fire extinguishing properties having the formula... These compounds demonstrate acceptable to very good abilities in extinguishing heptane flames
Data Source
AI summary
Compounds with fire extinguishing properties having the formula:wherein R1 is —CR5R6R7 or —CR5R6CR8R9R10 as well as fire extinguishing units including one or more of the compounds.