Individual Fireplace Combustion Floor Access for Air Box Maintenance
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Solution Overview
Problem
Existing individual fireplaces with grates for solid fuel combustion are difficult to maintain due to the need for additional maintenance hatches, complicating the design and visual appearance.
Innovation Solution
A single fireplace design with a combustion chamber floor that opens to access an air guiding box, allowing maintenance without additional hatches, and includes control devices for primary and secondary combustion air, with a removable floor element and fluid-tight separation, enabling easy access and maintenance of internal components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an additional maintenance hatch is added to access the air duct box, then accessibility for maintenance work is improved, but device complexity and visual appearance are worsened
Solution Approach 1:
The combustion chamber floor is designed to serve dual purposes: it acts as the base of the combustion chamber during operation and as an access door to the air duct box during maintenance. This multi-functional design eliminates the need for separate maintenance hatches, reducing device complexity while maintaining accessibility.
Solution Approach 2:
The invention merges the combustion chamber floor with the air duct box access door into a single component. By combining these two previously separate elements, the design eliminates additional maintenance hatches and simplifies the overall structure.
2Adaptability or versatility
If control devices are installed in the air duct box, then combustion air control functionality is improved, but accessibility for maintenance is worsened
Solution Approach 1:
The combustion chamber floor serves as both the operational base and the maintenance access door. When opened, it provides direct access to the air duct box where control devices are installed, ensuring that enhanced functionality does not compromise maintenance accessibility.
Solution Approach 2:
The removable floor elements act as intermediaries that can be taken away to provide access to the air duct box. This allows control devices to be installed in the air duct box while maintaining ease of access through the floor opening mechanism.
3Ease of operation
If the combustion chamber floor is made removable, then accessibility to air duct box is improved, but structural integrity is worsened
Solution Approach 1:
The combustion chamber floor is segmented into a fixed portion and removable floor elements. This segmentation allows parts of the floor to be removed for access to the air duct box while the remaining fixed portions maintain the structural integrity of the combustion chamber.
Solution Approach 2:
Different portions of the combustion chamber floor have different properties: the fixed portions provide structural strength and support, while the removable floor elements provide access functionality. This local differentiation of properties resolves the contradiction between accessibility and structural integrity.
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
Simplifies maintenance by eliminating the need for additional hatches, improves design aesthetics, and ensures easy access and efficient control of combustion air volumes, enhancing overall usability and accessibility.
Implementation Method 1
During combustion, the fuel is first gasified into fuel gas at high temperatures by adding primary combustion air containing oxygen
Implementation Method 2
The fuel gas is then further oxidized as a mixed gas together with secondary combustion air containing additional oxygen, thus producing exhaust gas
Data Source
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AI summary
The invention relates to a single fireplace for burning fuel, such as firewood, with a combustion chamber for receiving the fuel, which is bounded at the bottom by a combustion chamber floor, and an air supply device for supplying combustion air to the combustion chamber, wherein the air supply device is designed with an air supply box which is arranged under the combustion chamber floor, and the combustion chamber floor is designed to be opened from the combustion chamber in order to allow access to the air supply box.