Adjustable Ventilation Nozzle for Welding Smoke and Fume Removal

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Solution Overview

Problem

Conventional ventilation nozzles for welding applications fail to effectively remove smoke and fumes, leading to obscured visibility and potential faulty welds due to inadequate air flow and adjustable designs.

Innovation Solution

A ventilation nozzle system with a conduit body and adjustable conduit nozzle that allows for customizable air intake, angle, and length, featuring beveled tabs for increased airflow speed and a secure seal around the welding torch, connected to an exhaust conduit for efficient smoke removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If conventional ventilation nozzles are used for welding applications, then the device structure is simple, but smoke and fumes are not effectively removed leading to obscured visibility

Engineering Contradiction:
Improvesmoke and fumes removal effectivenessVSAvoidventilation nozzle structure complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The ventilation nozzle is divided into multiple functional segments including a conduit body with adjustable sections, a nozzle portion with specific geometry, and separate coupling mechanisms. This segmentation allows each component to be optimized for its specific function while maintaining overall system effectiveness in smoke removal.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The ventilation nozzle incorporates adjustable components including an adjustable conduit body section that can be repositioned, and an adjustable coupling mechanism that can be tightened or loosened. These dynamic elements allow the device to adapt to different welding positions and configurations while maintaining effective smoke extraction.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If fixed design ventilation nozzles are used, then manufacturing is simple, but adaptability to different welding positions and configurations is limited

Engineering Contradiction:
Improveadjustability to different welding configurationsVSAvoidmanufacturing complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The ventilation nozzle incorporates adjustable components including an adjustable conduit body section that can be repositioned, and an adjustable coupling mechanism that can be tightened or loosened. These dynamic elements allow the device to adapt to different welding positions and configurations while maintaining effective smoke extraction.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The ventilation nozzle is designed with universal coupling mechanisms and adjustable geometry that allow it to be used with various welding torch types and configurations. The adjustable conduit body and coupling system enable a single device to serve multiple welding applications and positions.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Illumination intensity

If inadequate air flow is provided, then energy consumption is low, but visibility is obscured and weld quality deteriorates

Engineering Contradiction:
Improvevisibility during weldingVSAvoidair flow energy consumption
Core Design Contradiction:
Illumination intensityVSUse of energy by moving object

Solution Approach 1:

The ventilation nozzle incorporates a specifically designed nozzle portion with optimized geometry including angled surfaces and controlled opening dimensions. These parameter changes in the flow path geometry enhance airflow velocity and direction control, improving smoke removal efficiency and visibility while managing energy consumption through optimized fluid dynamics.

Inventive Principle:
Principle #35Parameter changes

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 system enhances airflow speed and visibility during welding by effectively removing smoke and fumes, allowing for improved weld quality through adjustable and secure air flow management.

Implementation Method 1

The conduit nozzle, with a first end that is beveled and a second end, is configured to be removably coupled by the second end to the conduit body

Methodology Applied
Scientific EffectBeveled geometry for airflow acceleration:

Data Source

PatentEP3825053A1Methods and apparatuses for a ventilation nozzle for welding applications
Publication Date: 2021.05.26 ILLINOIS TOOL WORKS INC
  • EP3825053A1 patent drawingFigure 1
  • EP3825053A1 patent drawingFigure 2
  • EP3825053A1 patent drawingFigure 3

AI summary

Provided is a disclosure for a ventilation conduit for a welding torch, where the ventilation conduit comprises a conduit body comprising at least a first part and a second part, and a conduit nozzle. The first part and the second part are configured to be removably coupled to each other around an outside of a welding torch. The conduit nozzle, with a first end that is beveled and a second end, is configured to be removably coupled by the second end to the conduit body.