Multi-Ring Gas Burner Ignition Control to Prevent Delayed Ignition
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Solution Overview
Problem
Multi-ring gas burners face issues with delayed ignition or lack of ignition in one burner ring leading to excessive fuel flow in dependent rings due to independent gas supplies and reliance on flame carryover, resulting in inconsistent combustion across rings.
Innovation Solution
A controller-operated system that sends a spark to a first ring, determines its flame status, and adjusts the electronic gas valve of a second ring based on this status, ensuring proper ignition and combustion through a carryover duct that transfers combustion products to ignite fuel in the second ring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If flame carryover is used to ignite multiple burner rings with a single igniter, then device complexity is reduced, but delayed ignition or lack of ignition in one ring causes excessive fuel flow to dependent rings
Solution Approach 1:
The patent implements a feedback mechanism where a flame detection sensor monitors the ignition status of the first burner ring and sends signals to the controller. The controller adjusts the gas valve of the second ring based on this feedback, opening it only when successful ignition is confirmed in the first ring, thereby preventing excessive fuel accumulation and ensuring reliable synchronized ignition across all rings
Solution Approach 2:
The system performs preliminary ignition of the first burner ring before enabling gas flow to the second ring. The controller waits for confirmation of successful flame establishment in the first ring before activating the second ring's gas supply, ensuring that fuel is not supplied to rings that cannot be ignited
2Adaptability or versatility
If independent gas supplies are provided to each burner ring, then combustion flexibility is improved, but delayed ignition in one ring results in excessive fuel flow to dependent rings
Solution Approach 1:
The controller enables gas flow to the second ring only after confirming successful ignition in the first ring through flame detection. This preliminary verification prevents fuel from being supplied to rings that cannot be ignited, eliminating fuel waste while preserving the independence of gas supplies and combustion flexibility
Solution Approach 2:
The flame detection sensor provides real-time feedback on ignition status to the controller, which then adjusts gas valve positions accordingly. This feedback mechanism ensures that independent gas supplies are utilized only when successful combustion is achieved, preventing fuel accumulation and waste
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
This solution ensures reliable and synchronized ignition across multiple burner rings, preventing excessive fuel flow and ensuring consistent combustion, thereby improving the operational efficiency and reliability of multi-ring gas burners.
Implementation Method 1
an igniter in operative communication with the first ring to ignite fuel in the first ring and thereby initiate combustion in the first ring
Implementation Method 2
a carryover duct extending from the first ring to the second ring. The carryover duct permits combustion products, e.g., hot air and/or flames, generated in the first ring to ignite fuel from the second ring in the carryover duct
Data Source
AI summary
A method of operating a multi-ring gas burner includes sending a spark to a first ring of the multi-ring burner. After sending the spark to the first ring, the method determines a flame status of the first ring and adjusts a position of an electronic gas valve connected to a second ring of the multi-ring gas burner based on the determined flame status of the first ring.