Gas Burner Flame Strength Calibration via Ionization Feedback
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Solution Overview
Problem
Manufacturing heat exchangers that operate safely and efficiently is challenging due to variations in components and settings, requiring improved gas burner systems that can automatically compensate for these factors while minimizing parts and steps.
Innovation Solution
A gas burner system with a variable-speed forced-air device, a control valve, an electrode for igniting and measuring flame strength, and a controller that automatically calibrates and regulates the forced-air device to achieve a target flame strength set point, using a single electrode for monitoring and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual calibration and adjustment of gas burner systems is performed, then manufacturing precision can be achieved, but productivity is reduced due to additional time-consuming steps
Solution Approach 1:
The gas burner system performs self-calibration through automatic flame strength measurement and adjustment. The controller automatically regulates the variable-speed forced-air device based on flame strength feedback from the electrode, eliminating the need for manual calibration steps while maintaining consistent combustion quality across production batches.
2Reliability
If multiple components and calibration steps are used to ensure safe operation, then reliability is improved, but device complexity increases
Solution Approach 1:
The system combines the ignition electrode and flame strength measurement function into a single component. The same electrode that ignites the air-gas mixture also measures flame strength by detecting ionization current, eliminating the need for separate measurement sensors and reducing overall system complexity while maintaining safety through automatic flame monitoring.
Solution Approach 2:
The controller serves multiple functions: it controls the variable-speed forced-air device, monitors flame strength through the electrode, automatically calibrates the system, and regulates combustion parameters. This multi-functional approach consolidates what would traditionally require multiple separate devices into a single integrated control system.
3Manufacturing precision
If automatic flame strength regulation is implemented, then manufacturing precision is maintained despite component variations, but device complexity increases due to additional control mechanisms
Solution Approach 1:
The system implements automatic feedback control where the electrode continuously measures flame strength and sends signals to the controller. The controller compares the measured flame strength against target values and automatically adjusts the variable-speed forced-air device to maintain consistent combustion, compensating for component variations without requiring complex manual intervention systems.
Solution Approach 2:
The variable-speed forced-air device provides dynamic adjustment of air flow based on real-time flame strength measurements. This dynamic control allows the system to adapt to component variations and maintain optimal combustion parameters automatically, replacing static manual calibration with adaptive real-time regulation.
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 ensures safe and efficient operation by automatically adjusting to achieve a target flame strength, minimizing parts and steps, and maintaining consistent combustion quality despite variations in components and settings.
Implementation Method 1
an electrode configured to ignite the air-gas mixture and produce a flame, wherein the electrode is further configured to measure an actual flame strength of the flame
Data Source
AI summary
A gas burner system and corresponding methods include a gas burner through which an air-gas mixture is conducted; a variable-speed forced-air device that forces air through the gas burner; a control valve that controls a supply of gas for mixture with the air to thereby form the air-gas mixture; an electrode configured to ignite the air-gas mixture and produce a flame, wherein the electrode is further configured to measure an actual flame strength of the flame; a controller; and an input device for inputting a calibration command to the controller. Upon receipt of the calibration command, the controller is configured to automatically calibrate and save the target flame strength set point and thereafter automatically regulate a speed of the variable-speed forced-air device to cause the actual flame strength to achieve the target flame strength set point.