Copper Salt Fire Extinguishing Composition Cooling
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Solution Overview
Problem
Aerosol fire extinguishers face issues with high nozzle temperatures and reduced fire extinguishing performance due to redox reactions, requiring complex and costly cooling systems, which can lead to secondary fires and operator injuries.
Innovation Solution
A fire extinguishing composition comprising copper salts and a pyrotechnic agent, where the copper salts undergo decomposition to release fire extinguishing substances, reducing nozzle temperature through endothermic reactions and enhancing fire inhibition via radical scavenging and oxygen reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling system is added to reduce apparatus and aerosol temperature, then temperature control is improved, but device complexity and cost increase
Solution Approach 1:
The invention utilizes the endothermic decomposition reaction of copper salts to convert the harmful heat generated during fire suppression into a beneficial cooling effect. The copper salt decomposition absorbs heat, naturally reducing nozzle temperature without requiring external cooling systems.
Solution Approach 2:
The fire extinguishing composition itself provides the cooling function through the endothermic decomposition of copper salts. The system is self-cooling, eliminating the need for separate cooling subsystems and reducing overall device complexity.
2Temperature
If a cooling system is added to reduce apparatus temperature, then temperature control is improved, but fire extinguishing performance deteriorates due to inactivation of active particles
Solution Approach 1:
Instead of using external cooling that would quench active particles, the invention uses the endothermic decomposition of copper salts to cool the system while simultaneously generating beneficial copper-based active particles that enhance fire suppression effectiveness.
Solution Approach 2:
The invention changes the temperature parameter control method from external mechanical cooling to internal chemical endothermic reaction, maintaining optimal temperature for active particle generation while achieving necessary cooling effect.
3Productivity
If high temperature is generated by pyrotechnic agent to enable decomposition reaction, then fire extinguishing substance generation is improved, but harmful factors increase due to high nozzle temperature
Solution Approach 1:
The high temperature generated by pyrotechnic agent decomposition is converted into a beneficial dual-effect process: it drives the decomposition of fire extinguishing agents while the endothermic copper salt decomposition simultaneously limits temperature rise, preventing harmful overheating.
Solution Approach 2:
The invention exploits the phase transition and decomposition of copper salts at specific temperature ranges to create an automatic temperature regulation mechanism that prevents excessive heating while maintaining effective fire suppression.
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 composition effectively reduces nozzle temperature, enhances fire extinguishing efficiency, and eliminates the need for complex cooling systems, while being environmentally friendly and safe for operators.
Implementation Method 1
the fire extinguishing composition uses a pyrotechnic agent as a heat source and a power source, and through being ignited, the pyrotechnic agent is burnt to generate high temperature to enable the composition to perform decomposition reaction so that a large quantity of the resulting fire extinguishing substances can be spouted out with the pyrotechnic agent to achieve an object of fire extinguishing while reducing nozzle temperature through an endothermic reaction
Implementation Method 2
the fire extinguishing composition uses a pyrotechnic agent as a heat source and a power source, and through being ignited, the pyrotechnic agent is burnt to generate high temperature
Data Source
AI summary
Disclosed is a fire extinguishing composition of copper salts, which comprises a compound of copper salts and a fire retardant component with the content of 30wt%-95wt% for the former and 5wt%-70wt% for the latter respectively. A pyrotechnic agent in the composition serves as heat source and power source, and through being ignited, the pyrotechnic agent is burnt to generate high temperature to enable the composition to perform decomposition reaction so that a large quantity of the resulting fire extinguishing substances can be spouted out with the pyrotechnic agent to achieve an object of fire extinguishing. The fire extinguishing composition of copper salts can decrease the quantity of heat released by combustion of the pyrotechnic agent rapidly and efficiently, thus greatly reducing the nozzle temperature of a fire extinguishing apparatus and a sprayed substance, avoiding use of a complicated cooling system of the fire extinguishing apparatus, and also eliminating the danger of a secondary fire. the fire extinguishing composition releases a great deal of an effective fire extinguishing substance at the moment of being heated, through the synergistic effect of various particles, the fire extinguishing time is greatly shortened.