High-Pressure Nozzle for Extinguishing Pyrotechnic Substances
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Solution Overview
Problem
Pyrotechnic substances like Bengal flares and smoke pots pose a significant danger in football stadiums due to their inability to be effectively extinguished by existing methods, as they continue to burn even when submerged in water and require cumbersome transportation of water-filled containers, and high-pressure water jets do not yield satisfactory results.
Innovation Solution
A method utilizing a pressure device to deliver an extinguishing agent at a nozzle pressure greater than 4 bar through a nozzle with a tip designed for direct insertion into the pyrotechnic substance, using a mixture of water and FireAde 2000 as the extinguishing agent, which reduces surface tension, separates hydrocarbon molecules, and forms a foam layer to prevent oxygen supply, achieving rapid heat dissipation and extinguishment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If water is used to extinguish pyrotechnic substances, then the burning intensity is reduced temporarily, but the pyrotechnic substance continues to burn due to internal oxygen supply
Solution Approach 1:
The patent applies parameter changes by using high-pressure water jets (greater than 4 bar, preferably greater than 6 bar) to fundamentally alter the interaction between water and pyrotechnic material. The high pressure enables water to penetrate the material structure and disrupt the internal oxygen supply mechanism, transforming water from an ineffective extinguishing medium into an effective one.
Solution Approach 2:
The invention utilizes hydraulic principles by employing a pressure device to generate and deliver high-pressure water jets through a nozzle system. The hydraulic pressure greater than 4 bar forces water into the pyrotechnic substance at sufficient velocity and penetration depth to interrupt the combustion process, overcoming the limitation of conventional low-pressure water application.
2Reliability
If water-filled containers are used to extinguish pyrotechnics, then extinguishment may be achieved, but transportation to the burning site becomes cumbersome and time-consuming
Solution Approach 1:
The patent extracts the water from the container format and delivers it directly as a high-pressure jet through a portable nozzle system. This separates the extinguishing agent (water) from the cumbersome container, allowing rapid deployment without transportation delays while maintaining extinguishment effectiveness through the concentrated high-pressure delivery mechanism.
Solution Approach 2:
By using a pressure device connected to a portable nozzle, the system delivers extinguishing water directly to the fire site without requiring pre-filled containers. The hydraulic system enables on-demand water delivery, eliminating the need to transport heavy water containers while maintaining sufficient water pressure for effective extinguishment.
3Device complexity
If conventional extinguishing methods are used, then safety equipment remains simple, but the ability to extinguish pyrotechnics with internal oxygen supply is insufficient
Solution Approach 1:
The patent introduces a pressure device and nozzle system that converts ordinary water into a high-pressure jet capable of penetrating and disrupting pyrotechnic material structure. This relatively simple hydraulic system adds the critical capability to extinguish internally-oxygenated pyrotechnics without requiring complex chemical extinguishing agents or equipment.
Solution Approach 2:
The invention changes the pressure parameter of water from atmospheric to greater than 4 bar (preferably greater than 6 bar), fundamentally altering water's ability to interact with pyrotechnic material. This parameter change enables penetration and disruption of the material's internal structure and oxygen supply, achieving extinguishment with relatively simple equipment modifications.
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 method allows for quick and reliable extinguishment of pyrotechnic substances, including those with their own oxygen supply, by efficiently distributing the extinguishing agent as a spray mist, effectively absorbing energy and preventing re-ignition, enabling immediate handling of extinguished items and effective use in various applications such as extinguishing burning people or Molotov cocktails.
Implementation Method 1
Due to the spray mist, the extinguishing agent is finely distributed and has a large surface area in relation to the volume of the extinguishing agent. Due to the large surface, the extinguishing agent can evaporate quickly and quickly extract a lot of energy from the pyrotechnic substance.
Implementation Method 2
the extinguishing agent can evaporate quickly and quickly extract a lot of energy from the pyrotechnic substance
Implementation Method 3
The extinguishing water additive can have means for reducing the surface tension of the extinguishing water
Implementation Method 4
the mixture of fire-fighting water and fire-fighting water additive can have means for forming a foam layer. The foam carpet reliably separates the oxygen from the pyrotechnic substance.
Data Source
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AI summary
The invention relates to a method for extinguishing pyrotechnical materials such as torches, flares, smoke powder and/or smoke pots, wherein a pressure device that stores an extinguishing agent at a certain pressure and/or brings said extinguishing agent to a certain pressure and a nozzle that is connected to the pressure device by means of a line are used. According to the invention, the extinguishing agent is discharged at a nozzle pressure greater than 4 bar. In order to extinguish the pyrotechnical material, a nozzle tip of the nozzle is inserted directly into the pyrotechnical material or is held directly in front of the pyrotechnical material.