Gas fireplace combustion device structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional gas fireplaces lack control over flame direction and combustion air distribution, resulting in insufficient ornamental effects and excessive nitrogen oxide production due to inadequate combustion air management.
Innovation Solution
A gas fireplace combustion device structure featuring multiple combustor assemblies with independent combustion air inlet passages and slots, allowing for controlled air supply to different areas, achieving sectional combustion and reducing nitrogen oxide production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If multiple combustors are connected tightly under the same simulated solid fuel, then the structure is compact, but the upper simulated solid fuel presses and covers the combustor completely, preventing combustion air from reaching the combustor
Solution Approach 1:
The combustor is divided into multiple independent combustor assemblies (first combustor assembly, second combustor assembly, etc.), each with its own combustion air inlet passages. This segmentation allows each assembly to receive combustion air independently, solving the problem of air supply blockage while maintaining compact structure.
Solution Approach 2:
Combustion air inlet passages are introduced from the bottom dimension of the combustor assembly, bypassing the overhead simulated solid fuel. The passages extend upward from the bottom plate through the combustor body, delivering air to fire holes at different heights and positions, thus overcoming the vertical blocking by simulated solid fuel.
2Device complexity
If combustion air is not controlled in different areas of the furnace chamber, then the structure is simple, but combustion air is insufficient in some areas and excessive in others, leading to poor combustion and high nitrogen oxide production
Solution Approach 1:
Different areas of the combustor are equipped with localized combustion air inlet passages positioned at specific locations (front, rear, left, right sides) to provide tailored air supply to different combustion zones. This local quality approach ensures each area receives appropriate combustion air for optimal combustion and reduced emissions.
Solution Approach 2:
The combustion air control system is designed to regulate air supply to different zones based on combustion requirements, creating a feedback mechanism that optimizes combustion efficiency and minimizes nitrogen oxide formation by controlling air-fuel ratio in each region.
3Device complexity
If there is no combustion air inlet passage near the fuel combustion area, then the structure is simple, but combustion air cannot be controlled for flames at different positions, resulting in insufficient or excessive combustion in different areas
Solution Approach 1:
The combustion air inlet system is segmented into multiple independent passages, each serving specific fire holes and combustion zones. This segmentation allows precise control of air supply to different positions, ensuring reliable combustion across all areas of the combustor.
Solution Approach 2:
Combustion air is pre-supplied through dedicated inlet passages positioned near the combustion areas before the fuel reaches those zones. This preliminary action ensures that combustion air is already in position and properly distributed when combustion occurs, improving combustion reliability.
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 structure provides a brighter, more aesthetically pleasing flame with controlled combustion air distribution, ensuring sufficient combustion while reducing nitrogen oxide emissions.
Implementation Method 1
an independent combustion air inlet passage disposed under the combustor, and the combustion air inlet passage has an entrance disposed at the outside and/or outer bottom of the furnace chamber
Implementation Method 2
the combustion air inlet passage has an entrance disposed at the outside and/or outer bottom of the furnace chamber of the gas fireplace
Implementation Method 3
a combustor and a simulated solid fuel, characterized in that the combustor has a fuel gas inlet formed thereon
Implementation Method 4
the simulated solid fuel is disposed on an upper surface of the combustor, wherein the combustor may be a one-piece combustor or two or more combustor assemblies integrated as a whole
Data Source
AI summary
A gas fireplace combustion device structure includes a simulated solid fuel and a combustor under the simulated solid fuel. The combustor has a fire exit hole facing the simulated solid fuel, a combustion air inlet passage under the combustor, and a specific slot at the combustor to define a third combustion air inlet. A partition is installed under the combustor; a second combustion air inlet leading to fire exit hole is formed between the partition and the combustor; the combustion air inlet passage is provided for supplying air to the second and third combustion air inlets; a combustion air slot is formed at the middle of the simulated solid fuel to resupply combustion air to the flame above the simulated solid fuel in order to achieve a two-time sectional combustion. This invention can control and resupply combustion air to the flames in different areas to improve the combustion effect.