High-Temperature Oxygen Generation Device Burner Design
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Solution Overview
Problem
Conventional high-temperature oxygen generation devices face challenges in efficiently generating high-temperature oxygen gas under varying pressure conditions, from atmospheric to high pressure, without requiring significant equipment upsizing or expansion.
Innovation Solution
The device incorporates a burner with a combustion chamber, fuel flow path, and separate oxygen flow paths for combustion and heating, allowing for efficient mixing of high-temperature gas with oxygen to be heated in a preheating chamber, independent of pressure conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the supply pressure is increased to achieve supersonic ejection velocity for efficient heating and cutting, then the heating efficiency and productivity are improved, but the equipment scale must be significantly increased and the cost increases
Solution Approach 1:
The invention changes the pressure parameter from atmospheric pressure to high pressure (0.7 MPaG or higher). By operating the burner at high pressure, the ejection velocity of fuel gas and oxygen can be maintained at supersonic speeds without requiring large equipment scale, thus achieving both high productivity and compact equipment size
Solution Approach 2:
The invention introduces adjustable flow paths and flow rate control mechanisms that allow dynamic adjustment of gas flow rates and pressure. This enables the system to adapt to different operational requirements (heating, cutting, melting) while maintaining optimal ejection velocities and flame stability under high pressure conditions
2Speed
If the supply pressure is increased to achieve supersonic ejection velocity, then the ejection velocity is improved, but the flame becomes unstable and misfire or flashback occurs
Solution Approach 1:
The burner is segmented into multiple independent flow paths: a central fuel gas flow path, an inner oxygen flow path, and an outer oxygen flow path. This segmentation allows precise control of each gas stream's flow rate and velocity, enabling stable combustion even at high ejection velocities by optimizing the mixing ratio and flow distribution
Solution Approach 2:
The invention introduces a preheating chamber as an intermediary component between the gas supply and combustion chamber. This preheating chamber stabilizes the gas flow before it enters the high-pressure combustion zone, reducing flow turbulence and preventing flame instability, misfire, or flashback
3Volume of stationary object
If the equipment is designed for atmospheric pressure operation, then the equipment scale is reduced, but the preheating efficiency is lowered and preheating temperature is lowered when used at high pressure
Solution Approach 1:
The invention transitions from two-dimensional atmospheric pressure operation to three-dimensional high pressure operation (0.7 MPaG or higher). This pressure dimension change allows the compact equipment to achieve high preheating temperatures and efficient combustion by maintaining supersonic ejection velocities that would require much larger equipment at atmospheric pressure
4Temperature
If the flow rate of oxidizing agent is increased to meet high-temperature gas requirements, then the temperature requirement is satisfied, but the power output required increases and equipment scale becomes large
Solution Approach 1:
The invention changes the pressure parameter to high pressure (0.7 MPaG or higher), which allows the system to achieve high temperatures with lower power output. The high pressure enables supersonic ejection velocities and efficient combustion in a compact configuration, avoiding the need for large power output equipment that would be required at atmospheric pressure
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 configuration enables stable flame maintenance and efficient preheating of oxygen gas across a wide range of pressure conditions, preventing misfires and ensuring consistent high-temperature oxygen generation without equipment expansion.
Implementation Method 1
a combustion chamber 5 which forms a flame by a fuel gas G1 and oxygen gas G2 for combustion
Implementation Method 2
a preheating chamber 7 which mixes the high-temperature gas G4 and oxygen gas G3 to be heated
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The object of the present invention is to provide a high-temperature oxygen generation device and a high-temperature oxygen generation method which can efficiently supply preheated high-temperature oxygen gas regardless of pressure conditions from normal pressure to high pressure, without requiring upsizing or expansion of the equipment, and the present invention provides a high-temperature oxygen generation device (10) in which a high-temperature gas (G4) and an oxygen gas (G3) to be heated are mixed to generate a high-temperature oxygen gas (G5), wherein the high-temperature oxygen generation device (10) includes a burner (1) which generates the high-temperature gas (G4), and a preheating chamber (7) which is provided on the downstream side of the burner (1) and mixes the high-temperature gas (G4) and the oxygen gas (G3) to be heated, and the burner (1) includes a combustion chamber (5) which forms a flame by a fuel gas (G1) and an oxygen gas (G2) for combustion, a fuel flow path (2) which supplies the fuel gas (G1) into the combustion chamber (5), a first oxygen flow path (3) and a second oxygen flow path (4) which supply the oxygen gas (G2) for combustion into the combustion chamber (5), and a flow path (6) for oxygen to be heated which communicates with the preheating chamber (7), and supplies the oxygen gas (G3) to be heated toward the preheating chamber (7).