Gas Hot Air Gun Head Combustor Vortex Flow Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing gas hot air tools discharge hot air that travels in a straight line, causing combustion flames to potentially stretch out and lead to accidental burns or safety hazards.
Innovation Solution
A gas hot air gun head with a flow-guiding device featuring a combustor and flow-guiding plates that create a spinning vortex of hot air, preventing flames from escaping and increasing the temperature of the hot air output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If hot air is discharged in a straight line for efficient heating, then heating efficiency is improved, but combustion flames may stretch out causing safety hazards
Solution Approach 1:
The patent introduces flow-guiding plates with curved surfaces that redirect the straight-line hot air flow into a swirling vortex pattern. The curved geometry of the flow-guiding plates transforms the linear flow into a rotational flow, causing the hot air to follow a curved trajectory rather than moving in a straight line, thereby preventing flame stretching while maintaining heating effectiveness
Solution Approach 2:
The patent utilizes fluid dynamic principles to create a controlled vortex flow within the combustion chamber. By designing the flow-guiding plates with specific angles and curved surfaces, the patent harnesses the pneumatic properties of the hot air to generate a self-sustaining swirl that contains the combustion flames, preventing them from extending outward while maintaining efficient heat transfer
2Productivity
If flow rate is increased for faster heating, then productivity is improved, but combustion stability deteriorates
Solution Approach 1:
The patent introduces a dynamic vortex flow structure that adapts to varying flow rates. The flow-guiding plates are designed to maintain optimal flow angles and swirl intensities across different operating conditions, ensuring that combustion remains stable even when the hot air flow rate changes. The rotational flow pattern creates a more uniform mixing and combustion process that is less sensitive to flow rate variations
Solution Approach 2:
The patent modifies the flow parameters by introducing a swirl component to the hot air flow. This parameter change transforms the flow characteristics from simple linear motion to rotational motion, which fundamentally alters the combustion dynamics. The swirling flow enhances mixing between fuel and air, promotes more complete combustion, and maintains combustion stability across a wider range of flow rates
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 solution effectively prevents combustion flames from escaping and enhances the temperature of the hot air output, improving safety and combustion efficiency by creating a spinning vortex of hot air.
Implementation Method 1
create a spinning vortex of hot air, preventing flames from escaping
Implementation Method 2
combustor includes a combustion chamber extending therethrough
Data Source
AI summary
A gas hot air gun head includes a fuel supply device engagable with a gas reservoir and having a fluid inlet end, a fluid outlet end and a channel extending from the fluid inlet end to the fluid outlet end. Further, a flow-guiding device connects to the fluid outlet end of the fuel supply device and includes a combustor. The combustor connects to the fuel supply device. The combustor includes a combustion chamber extending therethrough. The combustion chamber includes first and second flow-guiding plates engaging therein and separating from each other in an axial direction. The first flow-guiding plate includes a plurality of first holes extending therethrough. The second flow-guiding plate includes a plurality of second holes extending therethrough. A centerline of one of the plurality of first holes offsets from centerlines of the plurality of second holes.