Two-Phase Fire Suppression for Residual Fire Source Control
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Solution Overview
Problem
Existing fire fighting methods require high water consumption, large extinguishing agent storage, and use of ecotoxic chemicals, leading to high costs and environmental risks, with insufficient control of residual fires.
Innovation Solution
A method involving two phases of extinguishing, where a detection device identifies residual fire sources, allowing targeted discharge of extinguishing agents with varying effects based on fire parameters, minimizing agent use and environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large amount of extinguishing agent is discharged to ensure fire containment, then the fire fighting effectiveness is improved, but the water consumption and storage requirements increase significantly
Solution Approach 1:
The extinguishing process is divided into two distinct phases: a first phase with initial extinguishing agent discharge, and a second phase with targeted supplementary discharge. This segmentation allows the system to achieve fire containment while minimizing total agent usage by addressing residual fire sources separately rather than using excessive agent in a single discharge.
Solution Approach 2:
The system performs preliminary detection and localization of residual fire sources after the first extinguishing phase. By identifying and targeting remaining fire seats before the second discharge, the system ensures that the second extinguishing agent discharge is precisely directed only where needed, minimizing overall agent consumption while maintaining effectiveness.
2Reliability
If ecotoxic chemicals are used to enhance extinguishing effect, then the fire suppression capability is improved, but environmental risks and disposal costs increase
Solution Approach 1:
Instead of using ecotoxic chemicals throughout the entire extinguishing process, the system applies them only partially during the second extinguishing phase and only in the specific locality where residual fire sources are detected. This partial application maintains fire suppression capability while significantly reducing environmental exposure and disposal costs compared to comprehensive chemical treatment.
Solution Approach 2:
The system varies the quality of extinguishing agent application by location and phase: the first phase uses standard extinguishing agent broadly, while the second phase targets specific localized areas with enhanced or different extinguishing agents. This local quality approach ensures effective fire suppression at residual sources while minimizing the use of ecotoxic chemicals to only where absolutely necessary.
3Reliability
If the entire extinguishing agent quantity is discharged after system triggering, then fire containment probability is improved, but system costs and storage space requirements increase
Solution Approach 1:
The extinguishing agent discharge is segmented into two controlled phases rather than a single all-or-nothing discharge. The first phase discharges an initial quantity, and the second phase discharges additional agent only if and where residual fire sources are detected. This segmentation reduces the required total storage capacity and lowers system costs by avoiding the need to provision for maximum possible discharge in all scenarios.
Solution Approach 2:
The system incorporates feedback through detection devices that monitor the fire situation after the first extinguishing phase. Based on this feedback about residual fire sources, the control unit decides whether and how much additional extinguishing agent to discharge in the second phase. This feedback mechanism allows the system to adapt agent discharge to actual fire conditions, reducing unnecessary discharge and associated costs.
Data Source
AI summary
The invention relates to a method for fighting a fire event. According to the invention, the following method steps are proposed:detecting a fire event by a detection device,starting a first extinguishing phase for fighting the fire event, wherein an extinguishing agent with a first extinguishing effect is discharged during the first extinguishing phase by at least one discharge apparatus,monitoring the fire event by the detection device and detecting fire event parameters and determining a locality of at least one still existing residual fire source andstarting a second extinguishing phase on the basis of the detected fire event parameters, wherein an extinguishing agent with a second extinguishing effect is discharged, according to need, at least one of the locality or the surroundings thereof during the second extinguishing phase, wherein the second extinguishing effect differs from the first extinguishing effect. The invention further relates to a system for carrying out the method according to the invention and a control device.