Polymeric Fire Fighting Water Additive for Reduced Ecological Harm
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Solution Overview
Problem
Current fire retardants, such as phosphate-based products and dry powders, have detrimental ecological effects and cause significant damage in confined spaces, necessitating the development of environmentally friendly, non-toxic alternatives that are efficient and minimize damage.
Innovation Solution
A polymeric fire fighting water additive composition containing an aqueous emulsion of acrylic copolymer, an emulsifier, and a surfactant, which forms a fine mist when diluted, optimizing water usage and reducing environmental impact, suitable for various fire scenarios including bushfires and enclosed spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If phosphate-based retardants and foams are used to enhance water's extinguishing effect, then fire fighting efficiency is improved, but ecological harm increases
Solution Approach 1:
The patent changes the chemical composition parameters by replacing phosphate-based retardants with polymeric additives (acrylic copolymer, polyacrylamide) that have different chemical properties. These polymeric additives provide fire retardancy through alternative mechanisms that are environmentally benign, thus maintaining fire fighting efficiency while eliminating ecological harm.
Solution Approach 2:
The invention uses composite material formulations combining polymeric additives with water and surfactants. The composite nature of these polymeric fire retardants allows them to provide both fire suppression functionality and environmental safety, replacing the harmful phosphate-based composite retardants previously used.
2Reliability
If dry powder retardants are used to smother fires in confined spaces, then fire suppression capability is improved, but damage to surrounding areas increases
Solution Approach 1:
The patent employs hydraulic principles by using liquid-based polymeric additives mixed with water, which can be delivered through spray and misting systems. This liquid formulation allows the retardant to be applied precisely where needed without the widespread dispersion and residual damage caused by dry powder smothering methods.
Solution Approach 2:
The invention changes the physical state parameter from solid dry powder to liquid polymeric additive formulation. This state change enables more precise application control and eliminates the damaging effects of dry powder residue while maintaining effective fire suppression through the polymeric retardant mechanism.
3Quantity of substance
If water is used in confined spaces with limited volume, then availability is improved, but effectiveness per unit volume decreases
Solution Approach 1:
The patent changes the concentration parameter by incorporating polymeric fire retardants into the water formulation. This increases the active fire suppression content per unit volume of water, thereby enhancing effectiveness without requiring additional water quantity. The polymeric additives act as highly efficient retardants that maximize the utility of limited water volumes in confined spaces.
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 polymeric additive enhances fire extinguishing efficiency with reduced water quantity, minimizes damage, and is environmentally safe, allowing for effective use in limited water volumes and reducing the load on aircraft, while being easy to mix and store.
Implementation Method 1
the retardant of the invention can be incorporated into ultra fine (fog) misting equipment and can be used in enclosed spaces... Ultra fine (fog) misting equipment such as hand held extinguishers and sprinkler systems with nozzle technology, which is capable of producing a mist of water droplets of less than 80 microns diameter
Implementation Method 2
the production of a very fine mist (fog) of water optimises the ability of the water to cool and extinguish a fire
Implementation Method 3
a polymeric fire fighting water additive composition containing an aqueous emulsion of acrylic copolymer, and an emulsifier
Implementation Method 4
the composition additionally includes a surfactant which acts as an inverter
Data Source
AI summary
A polymeric fire fighting water additive composition containing an aqueous emulsion of acrylic copolymer, and an emulsifier. The acrylic copolymer is preferably polyacrylamide. The acrylic copolymer has a polymeric weight of 5,000,000-50,000,000 Daltons or between 12,000,000-15,000,000 Daltons and is negatively charged. A surfactant acts as an inverter. The aqueous emulsion of acrylic copolymer is present in a range 35% to 70% by volume in the concentrate and the emulsifier is present in a range 10% to 70% by volume.