Modular Flat-Flame Nozzle for On-Site Capacity Adjustment
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Solution Overview
Problem
Existing burners struggle to produce a flat flame efficiently and adjust fired capacity in the field without requiring replacement, as they lack modular components that can change flow velocities of fuel and oxygen.
Innovation Solution
A modular flat-flame nozzle design with interchangeable components, including removable plate-separation border frames of varying thicknesses, allows technicians to adjust fuel and oxygen flow velocities by replacing these frames, thereby modifying the nozzle's geometry to change the fired capacity without replacing the burner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional burner design is used, then the structure is simple and easy to manufacture, but the fired capacity cannot be adjusted in the field without replacing the entire burner
Solution Approach 1:
The nozzle is segmented into multiple components including a body, cap, and interchangeable inserts. Each insert contains specific flow passages for fuel and oxygen, allowing individual replacement to adjust fired capacity without replacing the entire nozzle assembly. This segmentation enables field adjustment of burner capacity while maintaining overall structural simplicity.
Solution Approach 2:
The nozzle design incorporates adjustable elements where the flow passage geometry can be dynamically changed by swapping inserts with different thicknesses and configurations. This allows the fired capacity to be adjusted based on operational requirements, transforming a static nozzle into a dynamically adaptable component.
2Speed
If the fuel-transport passageway volume is increased, then the fuel flow velocity decreases, but this requires replacing the entire burner to achieve
Solution Approach 1:
The fuel-transport passageway is segmented into the body, cap, and interchangeable insert components. By replacing only the insert with different dimensions, the passageway volume can be adjusted to control fuel flow velocity and fired capacity independently, without affecting other parts of the burner system.
Solution Approach 2:
The insert thickness and geometry are varied to change the physical parameters of the fuel-transport passageway. Different insert specifications allow adjustment of passageway volume, cross-sectional area, and length, thereby controlling fuel flow velocity and fired capacity through parameter modification rather than complete burner replacement.
3Ease of operation
If parallel alternate streams of reactant gases are discharged with mixing after discharge, then the flame mixing is achieved, but the fired capacity cannot be precisely controlled
Solution Approach 1:
The nozzle is divided into separate fuel and oxygen transport passages within the interchangeable insert. This segmentation allows independent control of fuel and oxygen flow rates, enabling precise adjustment of the combustible mixture ratio and fired capacity while maintaining effective mixing of parallel alternate streams.
Solution Approach 2:
The interchangeable insert serves multiple functions: it defines the fuel-transport passageway, defines the oxygen-transport passageway, and controls the mixing characteristics. This multi-functionality allows a single component to control both mixing effectiveness and fired capacity adjustment.
Data Source
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AI summary
According to the present disclosure, a flat-flame nozzle is provided for producing a flat flame in a flame chamber included in a burner assembly. The flat-flame nozzle is configured to conduct fuel from a fuel supply to an ignition zone in the flame chamber. In some illustrative embodiments, the flat-flame nozzle is also configured to conduct oxygen from an oxygen supply to the ignition zone to produce a combustible oxygen-fuel mixture in the flame chamber. In illustrative embodiments, a removable first plate-separation border frame is positioned to lie between a first lower plate and a companion first upper plate. This border frame is configured to cooperate with those plates to form in the flat-flame nozzle a fuel-discharge outlet and a fuel-transport passageway communicating with the fuel-discharge outlet.