Flame Torch Nozzle Side Hole Ignition
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Solution Overview
Problem
Existing flame torches face difficulties in igniting gas due to limited gas injection direction and angle, and the generation of an electric arc at high gas flow velocities, making it challenging to sustain ignition.
Innovation Solution
A flame torch design featuring a body with an igniter and nozzle assembly, including a barrel, head seat with a spray hole and side hole, and a flow rectifier, where the electric arc wire is inserted into the side hole to create a low gas flow velocity area for easy ignition, and an insulation tube prevents electrical contact with the head seat, allowing for efficient gas ignition and diffusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the barrel is used as the conduit for gas injection, then the gas flow is contained within the barrel, but the direction and angle of gas injection are limited, resulting in a small range of flame provision
Solution Approach 1:
The gas injection system is segmented into multiple components: the barrel for gas containment, the spray hole for gas ejection, and the side hole for electric arc introduction. This segmentation allows each component to perform its specific function independently, enabling the gas to be injected in multiple directions (through the spray hole and side hole) rather than being constrained to a single path within the barrel, thereby expanding the flame provision range.
Solution Approach 2:
The invention introduces a radial dimension to gas injection by creating a side hole that extends radially along the spray hole. This allows gas to be injected not only axially through the spray hole but also radially outward through the side hole, adding a new dimension to the gas flow patterns and enabling a wider range of flame provision angles and directions.
2Reliability
If an electric arc is generated between the conductive element and the barrel, then the electric arc is easily generated, but it occurs at the location of extremely fast gas flow in the barrel, making it difficult to actually ignite the gas
Solution Approach 1:
The side hole acts as an intermediary structure that separates the electric arc generation zone from the high-velocity gas flow zone. The electric arc wire is inserted through the side hole into the barrel, creating a localized area where the electric arc can form without being immediately exposed to the extremely fast gas flow that passes through the main spray hole. This intermediary structure allows the electric arc to ignite the gas effectively by reducing the relative velocity between the arc and the gas at the ignition point.
3Ease of operation
If the electric arc wire is inserted into the side hole, then the gas is easily ignited by the electric arc, but the structure becomes more complex with additional components
Solution Approach 1:
The side hole serves multiple functions simultaneously: it provides a pathway for the electric arc wire to reach the gas flow, creates a low-velocity zone for effective ignition, and structurally integrates with the spray hole system. By merging these functions into a single structural element, the invention achieves easy ignition without proportionally increasing the overall device complexity.
Solution Approach 2:
The side hole is designed with multi-functionality: it acts as both a structural support element for the electric arc wire and a functional component for creating the ignition environment. The same structure that provides mechanical support also creates the low-velocity zone necessary for ignition, reducing the need for separate components and minimizing the increase in device complexity.
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 design enables easy ignition of gas with a larger flame area, as the electric arc effectively ignites the gas within the nozzle assembly, overcoming previous limitations of limited flame provision and high gas flow interference.
Implementation Method 1
One end of the electric arc wire is connected to the igniter, and the other end of the electric arc wire passes through the head seat and is inserted into the side hole. Thus, the gas is easily ignited by the electric arc.
Implementation Method 2
The spray hole communicates with the gas conduit, allowing the gas passing through the gas conduit and spraying outside through the spray hole.
Implementation Method 3
an insulation tube prevents electrical contact with the head seat, allowing for efficient gas ignition and diffusion.
Data Source
AI summary
A flame torch includes a body and a nozzle assembly. The body is provided with an igniter inside, and the igniter is connected to an electric arc wire. The nozzle assembly includes a barrel and a head seat. The barrel has a first end connected to the body, a second end opposite to the first end, and a gas conduit extending therethrough. The head seat is connected to the second end and has a spray hole and a side hole. The spray hole communicates with the gas conduit, allowing the gas passing through the gas conduit and spraying outside through the spray hole. The side hole extends radially along the spray hole and communicates with the spray hole. One end of the electric arc wire is connected to the igniter, and the other end of the electric arc wire passes through the head seat and is inserted into the side hole.