Fire-Fighting Nozzle Structure for 3D Seawater Atomization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fire-fighting systems on helicopter platforms suffer from limited coverage, poor atomization, and environmental pollution due to the use of chemical foams, with traditional nozzles requiring multiple heads and taking too long to extinguish fires, especially during oil leakage accidents.
Innovation Solution
A nozzle structure with an inner and outer pipe body, annular cover, and impeller system that allows for all-round and three-dimensional spraying using seawater, enhancing atomization and fire extinguishing efficiency, and a helicopter platform fire-fighting system that uses seawater to replace foam, reducing costs and environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If traditional fixed fire monitors are used, then the fire-fighting system is simple to implement, but the coverage is greatly affected by wind and cannot achieve full coverage
Solution Approach 1:
The nozzle structure employs a movable inner pipe body that can slide up and down inside the outer pipe body, transforming the static fire monitor into a dynamic system. The inner pipe body moves to different positions to adjust the spraying direction and coverage area, enabling the system to adapt to wind conditions and achieve comprehensive fire-fighting coverage that overcomes wind interference.
Solution Approach 2:
The invention adds vertical movement dimension to the traditional horizontal spraying system. By enabling the inner pipe body to move vertically within the outer pipe body, the system creates three-dimensional spraying capability, expanding the coverage area and allowing the fire monitor to reach different zones on the helicopter platform, thereby achieving full coverage despite wind effects.
2Reliability
If chemical foam is used as fire-fighting medium, then fire extinguishing effectiveness is improved, but environmental pollution occurs and ongoing maintenance costs increase
Solution Approach 1:
The invention replaces expensive chemical foam with seawater, which is abundant, free, and environmentally friendly. The system uses the natural properties of seawater for fire suppression, eliminating the need for costly foam chemicals that require periodic replacement and cause environmental pollution, while maintaining effective fire-fighting capability.
Solution Approach 2:
The system utilizes seawater, a naturally available resource, as the fire-fighting medium instead of relying on manufactured chemical foam. The seawater performs the fire suppression function inherently without requiring additional chemical additives, reducing both environmental impact and maintenance requirements for foam replenishment and disposal.
3Area of stationary object
If multiple spray heads are provided to achieve full coverage, then the coverage area increases, but the device complexity and cost increase
Solution Approach 1:
The movable inner pipe body serves multiple functions: it acts as both a structural component and a positioning mechanism for adjusting spray direction. By integrating the movement function into the existing nozzle structure, the system achieves comprehensive coverage without adding separate spray heads, thereby maintaining simplicity while expanding coverage area.
Solution Approach 2:
The single spray head achieves multi-directional coverage through the dynamic movement of the inner pipe body. Instead of using multiple fixed spray heads, the system employs one adjustable spray head that can be positioned at different locations and angles, providing the same coverage capability with reduced complexity and cost.
4Device complexity
If traditional spraying devices with simple structure are used, then the device complexity is low, but the atomization effect is poor and fire extinguishing time is long
Solution Approach 1:
The nozzle is divided into an outer pipe body and an inner pipe body, with the inner pipe body containing the impeller assembly. This segmentation allows the impeller to rotate independently and create strong water currents that improve atomization, while the overall structure remains relatively simple and easy to manufacture.
Solution Approach 2:
The impeller utilizes hydraulic principles to convert the kinetic energy of incoming water into rotational motion, which then creates high-velocity water streams and improves atomization. This hydraulic mechanism enhances fire extinguishing effectiveness without requiring complex mechanical or electrical components.
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 structure achieves rapid and comprehensive fire extinguishing with good atomization effects, reduces equipment and maintenance costs, and avoids environmental pollution, while the fire-fighting system effectively guides and treats oil spills.
Implementation Method 1
the inner pipe body may move upwards under the impact pressure of seawater
Implementation Method 2
the seawater entering the bottom of the inner pipe body from the bottom of the outer pipe body of the nozzle may be sprayed upwards through an upper orifice
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present application discloses a nozzle structure for fire fighting and a helicopter platform fire-fighting system, comprising an outer pipe body and an annular cover; an upper part of the outer pipe body is provided with an annular flanging; an inner pipe body is inserted inside the outer pipe body, with a lower end of the inner pipe body being open and an upper end being provided with an upper orifice; the inner pipe body is capable of sliding up and down inside the outer pipe body; the annular cover is provided on the upper part of the outer pipe body and is sleeved on the upper end of the inner pipe body; a water outflow loop is formed between the inner pipe body and the outer pipe body and between the annular flanging of the outer pipe body and the annular cover.