Compact Flame-Curtain Burner With Segmented Passages for Homogeneous Flames
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Solution Overview
Problem
Existing post-mix burners face challenges in generating homogeneous flame curtains due to preferential fluid flow paths, which are difficult to mitigate in compact designs without increasing manufacturing complexity or cost.
Innovation Solution
A linear post-mix burner design with a central dividing wall and compartmentalized fluid inlets and outlets, featuring through passages that distribute fluids longitudinally to prevent preferential flow paths, ensuring even distribution and combustion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a compact burner design is used, then the burner size and weight are reduced, but preferential fluid flow paths form causing non-homogeneous flame distribution
Solution Approach 1:
The burner is divided into multiple outlet compartments (first outlet compartment and second outlet compartment) separated by a central dividing wall. Each compartment has its own fluid distribution passages and ejection openings, allowing independent control of fluid flow paths. This segmentation prevents preferential flow paths by distributing fluids through separate, balanced channels to achieve homogeneous flame curtains from multiple ejection surfaces.
2Object-generated harmful factors
If traditional post-mix burners are used, then flame curtains can be generated, but preferential fluid flow paths cause non-homogeneous distribution along the flame length
Solution Approach 1:
Different regions of the burner are designed with specific local characteristics: the central dividing wall creates symmetric left and right sides, each outlet compartment has locally optimized passage configurations, and ejection openings are positioned at specific locations on the ejection surface. This local quality control ensures that fluid flow and flame characteristics are optimized at each location, preventing preferential flow paths and achieving homogeneous flame distribution along the entire flame length.
3Volume of moving object
If compact design is implemented, then space restrictions are addressed, but device complexity increases to prevent preferential flow paths
Solution Approach 1:
Multiple functions are merged into integrated components: the central dividing wall simultaneously serves as a structural separator, a fluid distribution channel divider, and a support for multiple outlet passages. The outlet compartments combine fluid mixing, distribution, and ejection functions in compact integrated structures. This merging reduces the number of separate parts and simplifies manufacturing while maintaining the ability to prevent preferential flow paths in a compact design.
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 burner generates a substantially homogeneous flame curtain suitable for various fire treatment processes, including glass polishing and coating annealing, while maintaining a compact and lightweight design.
Implementation Method 1
A first set of multiple through passages is provided in the first separation plate between the first inlet compartment and the first outlet compartment. The second separation plate, which separates the second inlet compartment from the second outlet compartment, presents a second set of multiple through passages. These passages distribute fluids longitudinally to prevent preferential flow paths.
Implementation Method 2
The burner is used to combine a fuel and an oxidant for the combustion of said fuel by means of the oxidant. In the case of post-mix burners, the fuel and oxidant are injected separately into a combustion zone located downstream of the burner so that the fuel and the oxidant first come into contact with one another in said downstream combustion zone where the combustion takes place.
Data Source
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AI summary
Post-mix burner and use of same for generating a flame curtain, the burner having a longitudinal central dividing wall (5) terminating in a wall head (7) towards the burner top (4), an oxidant inlet compartment (102) and an oxidant outlet compartment (103) on a first side of the central wall (5), a fuel inlet compartment (202) and a fuel outlet compartment on the opposite side of the central wall (5); the wall head (7) presenting a first set of oxidant outlet passages (107) and a second set of fuel outlet passages (207) terminating respectively in first oxidant ejection openings (100) and second fuel ejection openings (200) in an ejection surface (10) at the burner top (4), the oxidant and fuel ejection openings (100, 200) each extending in the longitudinal direction along the ejection surface (10).