A real fire wood fireplace
By installing a gas recirculation component in the fireplace, the density characteristics of carbon monoxide are utilized to enable secondary combustion within the fireplace, solving the problem of incomplete combustion of carbon monoxide in traditional fireplaces, improving combustion efficiency and thermal efficiency, and reducing pollution emissions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHUNAN BAOHONG HOUSEHOLD PRODUCTS CO LTD
- Filing Date
- 2024-08-13
- Publication Date
- 2026-05-26
AI Technical Summary
In traditional wood-burning fireplaces, the firewood is not fully burned, resulting in incomplete combustion of carbon monoxide, which is then emitted in the flue gas, reducing thermal efficiency and polluting the environment.
A gas recirculation component is installed in the fireplace, through which carbon monoxide is recirculated back to the furnace chamber for secondary combustion. Taking advantage of the fact that carbon monoxide has a lower density than carbon dioxide, it accumulates in the transition chamber and is then recirculated back to the furnace chamber through the recirculation pipe for complete combustion, converting it into carbon dioxide.
It improves the combustion and thermal efficiency of the fireplace, reduces carbon monoxide emissions, and reduces environmental pollution.
Smart Images
Figure CN224284709U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fireplace technology, and in particular to a real wood-burning fireplace. Background Technology
[0002] A real wood fireplace provides heat and a viewing experience by burning wood. A good real wood fireplace not only needs to have a good appearance, but most importantly, it must have high thermal efficiency.
[0003] The complete combustion of firewood and gases within the combustion chamber is a crucial factor in ensuring the thermal efficiency of a fireplace. In traditional fireplaces, incomplete combustion of firewood produces carbon monoxide, which often fails to burn fully and mixes with the flue gas, being emitted through the chimney. This reduces the fireplace's thermal efficiency, and because carbon monoxide is toxic, its release into the atmosphere causes pollution. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies and provide a real wood-burning fireplace.
[0005] The purpose of this utility model is achieved through the following technical solution: a real fire wood fireplace, including a furnace body and a gas recirculation component, a furnace cavity is provided in the furnace body, a first baffle plate is provided in the furnace cavity, and a transition cavity is formed between the first baffle plate and the upper end of the furnace cavity; a chimney pipe is provided at the upper end of the transition cavity;
[0006] The gas reflux component includes a reflux pipe, with an inlet at one end and an outlet at the other end. The inlet is located at the upper end of the transition cavity, and the outlet is connected to the furnace cavity and located below the first baffle plate.
[0007] In this invention, firewood burns in the furnace chamber, and the resulting flue gas moves upwards within the chamber. This flue gas contains a certain amount of carbon monoxide and a large amount of carbon dioxide. The flue gas first passes through a first baffle plate and then enters a transition chamber. Because carbon monoxide is less dense than carbon dioxide, it accumulates in the upper part of the transition chamber. The carbon monoxide then enters the return pipe through the inlet and flows along the return pipe to the outlet at the other end, returning to the furnace chamber for secondary combustion. This ensures that the carbon monoxide is fully combusted and converted into carbon dioxide, resulting in complete combustion of the firewood and flue gas in the furnace chamber. The heavier carbon dioxide remains in the lower part of the transition chamber and is discharged through the chimney. This invention improves the combustion and thermal efficiency of the fireplace and reduces carbon monoxide emissions, thereby reducing environmental pollution.
[0008] Preferably, a third baffle is provided at the end of the return pipe where the air inlet is located.
[0009] Preferably, a fixing plate is provided at one end of the reflux pipe where the gas outlet is located, and the fixing plate is fixedly connected to the furnace body.
[0010] Preferably, the furnace cavity is provided with a second baffle plate, which is horizontally opposite to the first baffle plate.
[0011] Preferably, the first baffle and the second baffle are arranged in a figure-eight shape.
[0012] Preferably, a combustion hopper is provided at the bottom of the furnace cavity.
[0013] Preferably, the furnace body is provided with an air inlet chamber and an air inlet channel. The air inlet chamber is located at the lower part of the furnace body, the lower end of the air inlet channel is connected to the air inlet chamber, and the upper end of the air inlet channel is connected to the furnace cavity.
[0014] The beneficial effects of this invention are: it improves the combustion efficiency and thermal efficiency of the fireplace, and reduces carbon monoxide emissions, thereby reducing environmental pollution. Attached Figure Description
[0015] Figure 1 This is a cross-sectional view of the present invention from one of its directions.
[0016] Figure 2 This is a cross-sectional view of the present invention from another direction.
[0017] Figure 3 This is a front view of the gas reflux component.
[0018] Figure 4 This is a top view of the gas reflux component.
[0019] Figure 5 This is a top view of the gas reflux component.
[0020] In the diagram: 1. Furnace body, 2. Furnace cavity, 3. Combustion bucket, 4. Air inlet cavity, 5. Air inlet channel, 6. First baffle plate, 7. Second baffle plate, 8. Transition cavity, 9. Chimney pipe, 10. Return pipe, 11. Third baffle plate, 12. Air inlet path, 13. Return path, 14. Fixed plate, 15. Air inlet, 16. Air inlet, 17. Air outlet. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.
[0022] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.
[0023] like Figure 1-5 As shown, a real wood-burning fireplace includes a furnace body 1 and a gas recirculation component. The furnace body 1 has a furnace cavity 2, and the furnace cavity 2 has a first baffle plate 6. A transition cavity 8 is formed between the first baffle plate 6 and the upper end of the furnace cavity 2. A chimney pipe 9 is provided at the upper end of the transition cavity 8. The gas recirculation component includes a recirculation pipe 10. One end of the recirculation pipe 10 has an air inlet 16, and the other end of the recirculation pipe 10 has an air outlet 17. The air inlet 16 is located at the upper end of the transition cavity 8, and the air outlet 17 communicates with the furnace cavity 2 and is located below the first baffle plate 6.
[0024] In this invention, firewood burns in the furnace chamber 2. The resulting flue gas moves upwards in the furnace chamber 2. This flue gas contains a certain amount of carbon monoxide and a large amount of carbon dioxide. The flue gas first passes through the first baffle plate 6 and then enters the transition chamber 8. Since the density of carbon monoxide is less than that of carbon dioxide, carbon monoxide accumulates in the upper part of the transition chamber 8. The carbon monoxide enters the return pipe 10 through the inlet 16, and then flows along the return pipe 10 to the outlet 17 at the other end. It then flows back into the furnace chamber 2 through the outlet 17 for secondary combustion (the flow path of carbon monoxide can be found in the appendix). Figure 1 The reflux path 13 in the furnace allows carbon monoxide to burn completely and be converted into carbon dioxide, thus ensuring the complete combustion of the firewood and flue gas in the furnace chamber 2. The heavier carbon dioxide is located in the lower part of the transition chamber 8 and is discharged outward through the chimney pipe 9. This invention improves the combustion efficiency and thermal efficiency of the fireplace and reduces carbon monoxide emissions, thereby reducing environmental pollution.
[0025] The bottom of the furnace chamber 2 is equipped with a combustion chamber 3. Firewood is placed in the combustion chamber 3 and burned there.
[0026] A third baffle plate 11 is provided at one end of the reflux pipe 10 where the air inlet 16 is located. The third baffle plate 11 is located at the upper part of the transition cavity 8, and the third baffle plate 11 is inclined. The upper end of the third baffle plate 11 is fixedly connected to the inner wall of the furnace cavity 2.
[0027] A fixing plate 14 is provided at one end of the reflux pipe 10 where the air outlet 17 is located, and the fixing plate 14 is fixedly connected to the furnace body 1.
[0028] A second baffle plate 7 is provided inside the furnace cavity 2, and the second baffle plate 7 is horizontally opposite to the first baffle plate 6. The first baffle plate 6 and the second baffle plate 7 are arranged in a figure-eight shape. A gas passage zone is formed between the first baffle plate 6 and the second baffle plate 7. The flue gas generated by combustion in the furnace cavity 2 flows upward and enters the transition cavity 8 after passing through the gas passage zone.
[0029] Furthermore, the furnace body 1 is equipped with an air inlet chamber 4 and an air inlet channel 5. The air inlet chamber 4 is located at the lower part of the furnace body 1, and the lower end of the air inlet channel 5 is connected to the air inlet chamber 4, while the upper end of the air inlet channel 5 is connected to the furnace cavity 2. The air inlet channel 5 forms an air inlet 15 through the inner wall of the furnace cavity 2. External air first enters the air inlet chamber 4, and then enters the furnace cavity 2 through the air inlet channel 5, providing sufficient oxygen for the combustion of firewood in the furnace cavity 2. The air flow path can be found in the appendix. Figure 1 Air intake path 12.
[0030] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.
Claims
1. A real firewood fireplace, characterized in that, It includes a furnace body and a gas reflux component. The furnace body is provided with a furnace cavity, and a first baffle plate is provided in the furnace cavity. A transition cavity is formed between the first baffle plate and the upper end of the furnace cavity. A chimney pipe is provided at the upper end of the transition cavity. The gas reflux component includes a reflux pipe, with an inlet at one end and an outlet at the other end. The inlet is located at the upper end of the transition cavity, and the outlet is connected to the furnace cavity and located below the first baffle plate.
2. The real wood-burning fireplace according to claim 1, characterized in that, A third baffle is provided at the end of the return pipe where the air inlet is located.
3. The real wood-burning fireplace according to claim 1, characterized in that, A fixing plate is provided at one end of the reflux pipe where the gas outlet is located, and the fixing plate is fixedly connected to the furnace body.
4. A real wood-burning fireplace according to claim 1, characterized in that, The furnace cavity is provided with a second baffle plate, which is horizontally opposite to the first baffle plate.
5. A real wood-burning fireplace according to claim 4, characterized in that, The first and second baffles are arranged in a figure-eight shape.
6. A real wood-burning fireplace according to claim 1, characterized in that, The bottom of the furnace chamber is equipped with a combustion hopper.
7. A real wood-burning fireplace according to claim 1, characterized in that, The furnace body is provided with an air inlet chamber and an air inlet channel. The air inlet chamber is located at the lower part of the furnace body, the lower end of the air inlet channel is connected to the air inlet chamber, and the upper end of the air inlet channel is connected to the furnace cavity.