Potassium Aerosol Fire Suppression at Minimum Extinguishing Concentration
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Solution Overview
Problem
Existing aerosol fire extinguishing compositions require further study on optimal conditions for effective fire extinguishing performance.
Innovation Solution
A method involving the discharge of an aerosol fire extinguishing gas containing a potassium compound to achieve a spatial concentration of 1.2 ppm or more, with the amount of agent determined by the equation C ppm = β × W g/m³, where C is potassium ion concentration, W is the amount of extinguishing agent, and β is the potassium ion generation coefficient.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an aerosol fire extinguishing composition is discharged into a target space, then fire extinguishing performance is improved, but the optimal conditions for effective performance were not previously established
Solution Approach 1:
The patent establishes specific parameter ranges for effective fire extinguishing: potassium ion concentration of 1.2 ppm or more, temperature range of 200-400°C, and aerosol particle size of 0.1-10 μm. By defining these critical parameters, the invention transforms the previously undefined usage conditions into measurable and controllable parameters, ensuring reliable fire extinguishing performance across different application scenarios
Solution Approach 2:
The patent performs preliminary research and establishes optimal conditions before actual fire extinguishing applications. Through advance experimentation, the invention determines the minimum potassium concentration (1.2 ppm), temperature range (200-400°C), and particle size distribution needed for effective performance, allowing users to pre-configure discharge devices and aerosol compositions according to these established parameters
2Reliability
If the amount of extinguishing agent is increased to achieve higher potassium concentration, then fire extinguishing effectiveness is improved, but the dosage calculation and distribution control become more complex
Solution Approach 1:
The patent introduces feedback mechanisms to monitor and control potassium ion concentration in the target space. By measuring the actual concentration and comparing it against the target value (1.2 ppm or more), the system can adjust the discharge rate and duration of the aerosol agent, ensuring effective fire suppression while avoiding excessive dosage. This closed-loop control simplifies the complexity of dosage calculation by using real-time measurements
Solution Approach 2:
The patent specifies a minimum threshold concentration (1.2 ppm) rather than requiring precise stoichiometric amounts. This approach allows for some variability in distribution while ensuring effectiveness - as long as the minimum concentration is achieved in the target zone, the fire extinguishing function is guaranteed. This simplifies control by focusing on meeting the minimum threshold rather than achieving exact dosage
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
This approach provides a novel fire extinguishing method and system using an aerosol composition, ensuring effective fire suppression by maintaining a minimum potassium concentration for efficient flame extinguishing.
Implementation Method 1
aerosol fire extinguishing composition that functions as a fire extinguishing agent by generating smoke having fire extinguishing performances through a thermal reaction with a potassium compound
Data Source
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AI summary
The present invention provides a novel fire extinguishing method and a fire extinguishing system using an aerosol fire extinguishing composition. The fire extinguishing method of the present invention is characterized in that an aerosol fire extinguishing gas containing a potassium compound is discharged into a target space to set a spatial concentration of potassium in the target space to 1.2 ppm or more. The fire extinguishing system of the present invention is characterized in that it includes a discharge device that discharges an aerosol fire extinguishing gas containing a potassium compound into a target space so that a spatial concentration of potassium becomes 1.2 ppm or more.