Wood stove
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Solution Overview
Problem
Existing combustion heating stoves pose safety risks when used in enclosed spaces, such as tents, due to oxygen consumption and toxic gas leakage from combustion processes.
Innovation Solution
A stove design incorporating an air inlet channel and exhaust channel that introduces external air and exhausts combustion gases outside the enclosed space, with an air intake adjusting device to control airflow and prevent gas leakage, and additional air supplement zones for thorough combustion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a stove is used in an enclosed space for heating, then heating function is provided, but oxygen is consumed and toxic gas leaks into the enclosed space
Solution Approach 1:
The air inlet and exhaust systems are segmented into separate channels: a first air inlet channel extends from outside the enclosed space to the combustion chamber, while a second air inlet channel and exhaust gas discharge channel are separate from each other. This segmentation ensures that fresh air for combustion is supplied independently from the enclosed space, and exhaust gases are discharged separately, preventing toxic gas accumulation and oxygen depletion inside the enclosed space.
Solution Approach 2:
The patent introduces an intermediary mechanism (air inlet channel extending outside the enclosed space) to supply combustion air from the external environment rather than from inside the enclosed space. This intermediary channel acts as a mediator that separates the combustion air supply from the enclosed space atmosphere, ensuring that oxygen consumption and toxic gas production do not directly affect the enclosed space air quality.
2Productivity
If air inlet is opened to supply oxygen for combustion, then complete combustion is achieved, but toxic gas may leak into the enclosed space
Solution Approach 1:
The air inlet system is divided into separate channels: a first air inlet channel that extends from outside the enclosed space to the combustion chamber for supplying fresh air, and a second air inlet channel within the enclosed space. The exhaust gas discharge channel is also separate. This segmentation allows complete combustion to be achieved using fresh air from outside while preventing any potential toxic gas leakage into the enclosed space through dedicated exhaust pathways.
Solution Approach 2:
The first air inlet channel serves as an intermediary that brings fresh air from the external environment to the combustion chamber, enabling complete combustion without depleting oxygen from the enclosed space. The separate exhaust gas discharge channel acts as another intermediary to safely remove combustion products outside the enclosed space, isolating the combustion process from the enclosed space atmosphere.
3Productivity
If stove door is opened to add fuel, then fuel supply is maintained, but exhaust gas may leak into the enclosed space
Solution Approach 1:
The patent introduces an intermediary handle mechanism connected to the air inlet channel control. When the user operates the handle to add fuel by opening the stove door, the handle simultaneously adjusts the air inlet channel opening degree. This intermediary mechanism ensures that fuel supply can be maintained while the air inlet is properly controlled, and the separate exhaust gas discharge channel ensures exhaust gases are directed outside the enclosed space, preventing leakage.
4Reliability
If air inlet channel is extended outside the enclosed space, then oxygen supply for combustion is ensured, but device complexity increases
Solution Approach 1:
The air inlet channel structure is designed to serve multiple functions: it extends from outside the enclosed space to the combustion chamber to supply fresh air, and its opening degree can be adjusted to control air flow. The handle mechanism also serves dual purposes: it allows users to open the stove door for fuel addition and simultaneously controls the air inlet channel opening degree. This multi-functionality reduces the need for separate complex control systems.
Solution Approach 2:
The patent merges the fuel addition operation with the air inlet control through the handle mechanism. When the user opens the stove door to add fuel, the handle mechanism simultaneously adjusts the air inlet channel opening degree. This merging of functions simplifies the overall device complexity by combining what could be separate operations into a single integrated mechanism.
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
Ensures safe use of the stove in enclosed spaces by preventing oxygen consumption and minimizing toxic gas production, allowing for effective ventilation and complete combustion.
Implementation Method 1
an air inlet end of the air inlet channel is in communication with an outside of the enclosed space, and a connection end of the air inlet channel is in communication with an air inlet of the stove body. The air inlet channel is operative to introduce air into the stove body from the outside of the enclosed space.
Implementation Method 2
an air inlet end of the air inlet channel is in communication with an outside of the enclosed space, and a connection end of the air inlet channel is in communication with an air inlet of the stove body. The air inlet channel is operative to introduce air into the stove body from the outside of the enclosed space.
Implementation Method 3
a connection end of the exhaust channel is in communication with an exhaust port of the stove body, and an exhaust end of the exhaust channel is in communication with the outside of the enclosed space, whereby the exhaust channel is operative to discharge an exhaust gas in the stove body out of the enclosed space.
Implementation Method 4
a connection end of the exhaust channel is in communication with an exhaust port of the stove body, and an exhaust end of the exhaust channel is in communication with the outside of the enclosed space, whereby the exhaust channel is operative to discharge an exhaust gas in the stove body out of the enclosed space.
Implementation Method 5
the heat as produced by the combustion of the wood is used for heating purposes
Implementation Method 6
the heat as produced by the combustion of the wood is used for heating purposes
Data Source
Figure 1
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Figure 3
AI summary
The present invention belongs to the technical field of the combustion heating stove, and disclosed is a stove including a stove body (1), an air inlet channel (2) and an exhaust channel (3). When the stove body (1) is used in an enclosed space, an air inlet end of the air inlet channel (2) is in communication with an outside of the enclosed space, a connection end of the air inlet channel (2) is in communication with an air inlet of the stove body (1), the air inlet channel (2) is operative to introduce air into the stove body (1) from the outside of the enclosed space; and a connection end of an exhaust channel (3) is in communication with an exhaust port of the stove body (1), an exhaust end of the exhaust channel (3) is in communication with the outside of the enclosed space, whereby the exhaust channel (3) is operative to discharge exhaust gas in the stove body (1) out of the enclosed space.