Fog-Cloud Nozzle Segmentation for Fire Suppression Efficiency
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Solution Overview
Problem
Conventional firefighting nozzles are inefficient in water consumption and efficacy, particularly in breaking up water into a fine spray to effectively combat interior fires and protect personnel.
Innovation Solution
A fog-cloud generating nozzle design featuring a threadable nozzle head and base with a rotationally disposed inner sleeve, creating multiple discharge ports and orifices that break up water into a fine mist with directional control and forward thrust, utilizing high-pressure water sources to create a large volume of fog or mist for effective fire suppression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If water is discharged in a converging pattern of diffused solid streams, then the nozzle structure is simple, but the water consumption efficiency is poor and fire suppression efficacy is reduced
Solution Approach 1:
The nozzle segments the water stream into multiple discrete streams through internal geometry and a rotatable distributor, transforming a single converging stream into multiple diffused streams that cover a larger volume and improve fire suppression efficacy while reducing water consumption
Solution Approach 2:
The nozzle incorporates a rotatable distributor that can rotate to dynamically redirect the pattern of water streams, allowing the nozzle to adaptively target different areas and maintain effective fire suppression while optimizing water distribution efficiency
2Productivity
If water is broken up into a fine spray, then fire suppression efficacy is improved, but the nozzle structure becomes complex
Solution Approach 1:
The nozzle uses internal segmentation with multiple discharge ports and a rotatable distributor to create fine spray patterns without requiring complex external mechanisms, achieving effective fire suppression through geometric segmentation rather than mechanical complexity
Solution Approach 2:
The rotatable distributor is designed to rotate automatically under the influence of the water flow itself, eliminating the need for external motors or power sources, thus reducing device complexity while still achieving dynamic fine spray distribution for improved 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 nozzle achieves efficient fire extinguishment with reduced water consumption by breaking water into fine droplets that absorb heat and prevent fire spread, allowing for safer firefighter approach and containment.
Implementation Method 1
Multiple discharge ports of the nozzle head and multiple discharge orifices of the inner sleeve cooperate to generate a fog-cloud
Implementation Method 2
water absorbs not only heat but also many of the toxic gases of a fire and tends to clear away the smoke
Data Source
AI summary
A fog-cloud generating nozzle is disclosed. In one embodiment, a nozzle head having a fluid passageway is threadable coupled to a nozzle base. The nozzle base, which provides a threadable coupling to a water source, is disposed in fluid communication with the fluid passageway. An inner sleeve is rotationally disposed within the fluid passageway with bearing surfaces against the nozzle head and the nozzle base. Multiple discharge ports of the nozzle head and multiple discharge orifices of the inner sleeve cooperate to generate a fog-cloud having a magnified forward thrust component and enabled directional control.