FID Chimney Turbulence Aid for Reliable Flame Ignition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing flame ionization detectors in gas chromatography often require manual operator intervention for flame ignition, which can be hazardous and inefficient, and may lead to unattended analysis loss if the flame goes out.
Innovation Solution
An ignition aid apparatus and method that creates turbulence in the fuel/air mixture near the ignition source within the detector chimney, enhancing the likelihood of reliable flame ignition without operator intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual operator intervention is used to provide air flow across the detector chimney to create turbulence, then flame ignition reliability is improved, but operator safety risks increase and automated operation capability deteriorates
Solution Approach 1:
The system uses an automated fan mounted on the detector to generate the required air flow across the chimney, eliminating the need for manual operator intervention. The fan is controlled by the instrument's automation system, allowing unattended operation while maintaining reliable flame ignition through consistent turbulence generation in the fuel/air mixture.
2Reliability
If manual operator intervention is used to provide air flow across the detector chimney, then flame ignition reliability is improved, but automation capability deteriorates
Solution Approach 1:
The detector system performs the turbulence-generation function autonomously through an integrated fan mechanism. The fan is activated automatically by the instrument's control system when flame ignition is required, enabling completely unattended operation and eliminating the need for operator presence during the ignition process.
3Reliability
If detector flows are ramped up to create a rich fuel/air mixture, then ignition process is enhanced, but flame stability may deteriorate
Solution Approach 1:
The fan creates localized turbulence specifically at the chimney region where the fuel/air mixture contacts the ignition source. This localized action enhances ignition reliability without requiring a globally rich fuel/air mixture throughout the entire detector, thereby maintaining flame stability in the bulk flow while improving ignition at the critical location.
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 ignition aid ensures consistent and reliable flame ignition, reducing the need for manual intervention and minimizing safety risks, while maintaining detector sensitivity and functionality.
Implementation Method 1
create turbulence in flow of gases flowing out of the detector to enhance commingling of the fuel/air mixture with an ignition source
Data Source
AI summary
An ignition aid method and apparatus for a flame ionization detector, comprising a body that traverses a chimney of the detector to create turbulence in flow of gases flowing out of the detector to enhance commingling of the fuel/air mixture with an ignition source when the ignition source is active.