Dual-Stack Burner Flame Stabilization With Separate Flame Paths
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Solution Overview
Problem
Conventional burner devices, particularly dual stack burner devices, face challenges in maintaining flame stability due to their complex configuration, which affects the stability of both simmer and main flames, and this issue is exacerbated in dual burner devices.
Innovation Solution
The burner device incorporates a flame stabilization structure with specific nozzle configurations, flame holes, and expansion chambers to stabilize flames, ensuring that both simmer and main flames are maintained through separate flame paths and chambers, enhancing thermal efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a dual stack burner device with outer burner and inner burner is constructed, then the overall thermal efficiency is increased, but the flame stabilization function deteriorates due to complex configuration
Solution Approach 1:
The burner device is segmented into distinct outer and inner burner systems, each with separate flame holes and gas passages. The outer burner has outer flame holes for main flame and inner flame holes for simmer flame, while the inner burner has corresponding separate openings. This segmentation allows independent optimization of each burner's flame characteristics while maintaining overall thermal efficiency.
Solution Approach 2:
Different regions of the burner device are given different functional qualities. The outer burner structure provides main heating capability through larger flame holes, while the inner burner structure provides simmer heating through smaller flame holes. The side walls are designed with different protrusion patterns to create localized flow control zones that stabilize flames in specific regions.
2Device complexity
If multiple flame holes and burners are integrated in a compact dual stack configuration, then the device complexity is reduced, but the flame stability deteriorates
Solution Approach 1:
The inner burner is nested within the outer burner structure, with the inner burner head positioned inside the outer burner assembly. The inner burner's side walls are nested within the outer burner's side walls, creating a compact dual-stack configuration. This nesting reduces overall device complexity while maintaining separate flame zones for stability.
Solution Approach 2:
The burner design utilizes vertical dimensionality with side walls extending in the height direction to create three-dimensional flame stabilization zones. Protrusions on side walls create vertical flow channels that stabilize flames in the vertical dimension, adding a new dimension to flame control without increasing horizontal complexity.
3Productivity
If gas passages and flame holes are densely arranged in dual burner structure, then the productivity is improved, but the manufacturing precision requirement increases
Solution Approach 1:
The side walls are designed with pre-formed protrusions at specific positions before final assembly. These protrusions serve as preliminary flow guides that shape gas flow patterns before the gas reaches the flame holes. By establishing flow direction upstream through the protrusion geometry, the design compensates for variations in flame hole manufacturing precision.
Solution Approach 2:
The design varies the geometric parameters of flame holes and gas passages between outer and inner burners, and between different burners. The outer burner has larger flame holes for main flame while the inner burner has smaller holes for simmer flame. This parameter variation optimizes heating output for different cooking needs while distributing manufacturing tolerance requirements across different size ranges.
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 solution provides stable flame maintenance, reducing flame extinguishment and improving overall thermal efficiency by ensuring continuous operation of simmer and main flames in dual stack burner devices.
Implementation Method 1
gas flowing in through the first lower head hole provides flames through the first outer flame holes and the first inner flame holes, respectively
Data Source
AI summary
The present invention provides a burner device having a flame stabilization structure, the burner device including: a burner body having a first nozzle, a second nozzle, and a third nozzle through which gas is introduced, and also having a first body hole communicating with the first nozzle, second body holes communicating with the second nozzle, and a third body hole communicating with the third nozzle; an outer burner lower head disposed on the burner body, and having first outer flame holes and first inner flame holes; an outer burner upper head disposed on the outer burner lower head, and having second outer flame holes; an outer burner cap disposed on the outer burner upper head; an inner burner head disposed on the outer burner lower head, and having second inner flame holes; and an inner burner cap disposed on the inner burner head.