Gas Radiation Burner Air Supply Control for Complete Combustion

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Solution Overview

Problem

Existing gas radiation burners face issues with insufficient air supply for combustion, leading to incomplete combustion, increased carbon monoxide production, safety concerns due to residual mixed gases, and overheating of objects and surroundings.

Innovation Solution

A gas radiation burner system with a gas supply unit for mixing gas and air, a burner body for combustion, and an air supply unit to regulate air intake based on heat requirements, ensuring sufficient air is provided during and after combustion to prevent overheating and explosive ignition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If air is supplied only by pressure difference around gas fuel, then the burner structure remains simple, but combustion efficiency deteriorates due to insufficient air supply

Engineering Contradiction:
Improveburner structureVSAvoidcombustion efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The air supply function is segmented into two independent paths: (1) primary air supplied through the mixing pipe by pressure difference, and (2) secondary air supplied through a dedicated air supply hole in the burner body. This segmentation allows each path to be optimized independently, ensuring sufficient total air supply for complete combustion while maintaining simple overall structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The burner body acts as an intermediary component that introduces additional air through the air supply hole, mediating between the gas fuel from the mixing pipe and the combustion process. This intermediary air supply mechanism ensures adequate oxygen for complete combustion without requiring complex overall burner redesign.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If gas fuel is sprayed at high speed, then mixing efficiency improves, but air supply becomes insufficient due to low pressure generation

Engineering Contradiction:
Improvemixing efficiencyVSAvoidair supply quantity
Core Design Contradiction:
Ease of operationVSQuantity of substance

Solution Approach 1:

The air supply is segmented into primary air (through mixing pipe) and secondary air (through air supply hole in burner body). The high-speed gas spray effectively draws primary air through the mixing pipe, while the secondary air path compensates for the insufficient total air quantity, ensuring complete combustion.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the burner provide different air supply characteristics: the mixing pipe region provides primary air through pressure difference suitable for mixing, while the burner body region provides additional secondary air through the air supply hole. This local differentiation ensures both efficient mixing and sufficient total air supply.

Inventive Principle:
Principle #3Local quality

3Use of energy by moving object

If combustion continues without post-combustion air supply, then energy consumption remains low, but overheating occurs and safety deteriorates

Engineering Contradiction:
Improveenergy consumptionVSAvoidsafety
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The air supply hole in the burner body is designed to automatically supply air after combustion occurs. This preliminary-designed passive air supply mechanism ensures that sufficient air is available during and after combustion without requiring active control, preventing overheating and residual mixed gas accumulation while maintaining simple operation.

Inventive Principle:
Principle #10Preliminary action

4Productivity

If residual mixed gas accumulates in burner body, then combustion completeness improves, but explosive ignition risk increases

Engineering Contradiction:
Improvecombustion completenessVSAvoidexplosive ignition risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The air supply hole in the burner body extracts residual mixed gas from the combustion chamber and supplies it with additional air for continued combustion. This extraction mechanism prevents dangerous accumulation of unburned mixed gas by ensuring complete combustion through continuous air supply during and after the main combustion phase.

Inventive Principle:
Principle #2Taking out (Extraction)

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

Enhances combustion efficiency, reduces harmful exhaust gases, improves safety by ensuring adequate air supply, and prevents overheating of objects and surroundings.

Implementation Method 1

since the gas is sprayed into the mixing pipe from the nozzle, a flowing speed of the gas fuel introduced into the mixing pipe is considerably high. Therefore, a low pressure is generated around the gas fuel. In this case, the air in a static state around the nozzle has a relatively high pressure to be sucked into the mixing pipe by the fluid pressure difference.

Methodology Applied
Scientific EffectFluid pressure difference: Bernoulli Effect

Implementation Method 2

the mixed gas is then sprayed via the burner mat 6. Simultaneously, the mixed gas is ignited by a prescribed ignition means (not shown in the drawings) and is then burnt on the burner mat 6. As the mixed gas is burnt, the burner mat 6 is heated to emit radiant energy.

Methodology Applied
Scientific EffectCombustion: Combustion

Implementation Method 3

the burner mat 6 is heated to emit radiant energy. Therefore, the object put on the glass 10 is heated by the generated radiant energy.

Methodology Applied
Scientific EffectRadiant energy emission: Thermal Radiation

Implementation Method 4

subsequently, the blowing fan 310 is activated to force air into the burner body 112. Therefore, the burner body 112, the glass 30, and the like can be cooled down

Methodology Applied
Scientific EffectForced convection: Forced Convection

Data Source

PatentUS7766005B2Gas radiation burner and controlling method thereof
Publication Date: 2010.08.03 LG ELECTRONICS INC
  • US7766005B2 patent drawing
  • US7766005B2 patent drawing
  • US7766005B2 patent drawing

AI summary

A gas radiation burner includes a gas supply unit for spraying a mixed gas of a gas and air; a burner body having a burner pot accommodating the mixed gas supplied by the gas supply unit and a burner housing provided on the burner pot to configure a combustion chamber; a burner mat provided over the burner pot to emit a radiant heat generated by combustion of the mixed gas supplied by the burner pot; and an air supply unit supplying air to the burner housing.