Improved domestic biomass fuel stove

Abstract

The utility model relates to fuel furnace technical field especially relates to an improved household biomass fuel furnace. Including furnace body base and furnace body top board, be installed with combustion chamber on furnace body base, be installed with inner bag on combustion chamber, and the outer barrel of furnace body is set up to the outside of combustion chamber and inner bag and is connected through the heat dissipation through board between the top of inner bag and the outer barrel of furnace body, and the grid side plate is connected between furnace body base and furnace body top board, and the furnace body baffle is connected in the inside of the outer barrel of furnace body, and the bunker is installed at the bottom of furnace body top board, and the bunker bottom is connected through the feeding mechanism with combustion chamber, and the air inlet fan is installed in furnace body base, and the air inlet fan is connected through the air inlet pipe with combustion chamber, and the smoke extraction fan is installed in furnace body base, and the suction end of smoke extraction fan is equipped with the smoke pipe. The utility model provides an improved household biomass fuel furnace, makes the household biomass fuel furnace to get further popularization, and improves the user experience.

Description

Technical Field

[0001] This utility model relates to the field of fuel stove technology, and in particular to an improved household biomass fuel stove. Background Technology

[0002] Household biomass fuel stoves are cooking or heating devices that use renewable biomass resources such as straw, wood chips, and fruit shells as fuel. Due to their wide availability, renewability, and relatively clean combustion, they have broad application prospects in rural areas and peri-urban areas. The core objective of these stoves is to improve ease of use, cleanliness, and safety while ensuring basic thermal efficiency, in order to meet daily household needs.

[0003] However, some existing household biomass fuel stoves still have several problems that urgently need to be addressed in practical use. The combustion efficiency of some stoves is not ideal, resulting in incomplete fuel combustion, leading to increased heat loss and flue gas emissions. Simultaneously, the flue gas path design during combustion is not ideal, making it prone to stagnation or escape within the stove body. This not only affects the effective utilization of heat energy (e.g., failing to fully utilize waste heat from flue gas) but may also cause smoke pollution in the environment, affecting indoor air quality. Furthermore, the collection and cleaning of ash is often cumbersome, easily generating dust during ash removal, and the complex internal structure of the stove body makes maintenance and cleaning inconvenient. There are also shortcomings in the coordinated control of air intake and exhaust, affecting the stability and efficiency of combustion. Utility Model Content

[0004] This utility model provides an improved household biomass fuel stove, which can further promote the use of household biomass fuel stoves and improve the user experience.

[0005] The technical solution adopted by this utility model is as follows: an improved household biomass fuel stove, including a stove base and a stove top plate. A combustion chamber is fixedly installed on the stove base, and an inner liner is fixedly installed on the combustion chamber. An outer cylinder is fitted around the combustion chamber and the inner liner and installed between the stove base and the stove top plate. The top of the inner liner is fixedly connected to the outer cylinder through a heat dissipation plate. The stove base and the stove top plate on the side away from the outer cylinder are connected by a mesh side plate. A stove partition is fixedly connected inside the outer cylinder on the side of the inner liner and the combustion chamber. A hopper is installed at the bottom of the stove top plate on the side of the outer cylinder. The bottom of the hopper is connected to the combustion chamber through a feeding mechanism. An air intake fan is installed inside the stove base and is connected to the combustion chamber through an air intake pipe. A smoke extraction fan is installed at one end of the mesh side plate inside the stove base. The suction end of the smoke extraction fan is provided with a smoke extraction pipe extending into the space between the combustion chamber and the outer cylinder.

[0006] As a further improvement of this utility model, the combustion chamber is connected to the inner liner, and a combustion plate and a ash guide plate are fixedly connected inside the combustion chamber.

[0007] As a further improvement of this utility model, a slidable ash-leaking plate is provided at the bottom of the combustion chamber, and a control rod extending to the outside of the furnace body base is fixedly connected to one side of the ash-leaking plate.

[0008] As a further improvement of this utility model, an ash collection drawer is slidably connected inside the furnace body base below the ash leakage plate, and a handle is fixedly connected to one side of the ash collection drawer.

[0009] As a further improvement of this utility model, a rectangular box is provided between the furnace body partition and the hopper, and heating boxes are slidably connected to both ends of the rectangular box. A pull handle is fixedly connected to one side of the heating box.

[0010] As a further improvement of this utility model, a feed inlet cover is installed on the top plate of the furnace body above the hopper.

[0011] As a further improvement of this utility model, a combustion chamber is formed inside the inner liner, and a smoke chamber is formed between the inner liner and the outer barrel of the furnace. The flue gas inside the inner liner enters the smoke chamber through the through holes on the heat dissipation plate, and then the smoke is discharged through the smoke extraction pipe by the smoke extraction fan.

[0012] The beneficial effects of this utility model are as follows: By optimizing the furnace structure and coordinating the control of the air intake fan and the smoke extraction fan, this utility model achieves efficient and clean combustion of fuel, directional flow of flue gas and full utilization of waste heat. At the same time, with the convenient ash and slag collection design, it significantly improves combustion efficiency, reduces smoke and dust pollution, and greatly enhances the ease of operation and maintenance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an improved household biomass fuel stove according to this utility model;

[0014] Figure 2 This utility model relates to an improved household biomass fuel stove. Figure 1 Another perspective illustration;

[0015] Figure 3 This is a partial structural diagram of an improved household biomass fuel stove according to this utility model. Figure 1 ;

[0016] Figure 4 This utility model relates to an improved household biomass fuel stove. Figure 3 Another perspective illustration;

[0017] Figure 5 This is a partial structural diagram of an improved household biomass fuel stove according to this utility model. Figure 2 .

[0018] As shown in the figure: 1. Furnace base; 2. Furnace top plate; 3. Combustion chamber; 4. Inner liner; 5. Furnace outer casing; 6. Heat dissipation plate; 7. Mesh side plate; 8. Furnace partition; 9. Hopper; 10. Feeding mechanism; 11. Air intake fan; 12. Air intake pipe; 13. Smoke extraction fan; 14. Smoke extraction pipe; 15. Combustion plate; 16. Ash guide plate; 17. Ash leakage plate; 18. Control lever; 19. Ash collection drawer; 20. Handle; 21. Heating box; 22. Pull handle; 23. Feed inlet cover plate. Detailed Implementation

[0019] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0020] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0021] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0022] This utility model provides the following: Figure 1-5 An improved household biomass fuel stove, as shown, includes a stove base 1 and a stove top plate 2. A combustion chamber 3 is fixedly installed on the stove base 1, and an inner liner 4 is fixedly installed on the combustion chamber 3. An outer casing 5 is fitted around the combustion chamber 3 and the inner liner 4, installed between the stove base 1 and the stove top plate 2. The top of the inner liner 4 is fixedly connected to the outer casing 5 by a heat dissipation plate 6. The stove base 1 and the stove top plate 2 on the side away from the outer casing 5 are connected by a mesh side plate 7. The interior of the outer casing 5 is located... A furnace body partition plate 8 is fixedly connected to one side of the inner liner 4 and the combustion chamber 3. A hopper 9 is installed at the bottom of the furnace body top plate 2 on one side of the outer barrel 5 of the furnace body. The bottom of the hopper 9 is connected to the combustion chamber 3 through a feeding mechanism 10. An air intake fan 11 is installed inside the furnace body base 1. The air intake fan 11 is connected to the combustion chamber 3 through an air intake pipe 12. A smoke extraction fan 13 is installed at one end of the grid side plate 7 inside the furnace body base 1. The suction end of the smoke extraction fan 13 is provided with a smoke extraction pipe 14 that extends into the space between the combustion chamber 3 and the outer barrel 5 of the furnace body.

[0023] like Figure 1 and Figure 5 As shown, in this utility model, the combustion chamber 3 is connected to the inner liner 4. A combustion plate 15 and an ash guide plate 16 are fixedly connected inside the combustion chamber 3. An ash leakage plate 17 is slidably connected to the bottom of the combustion chamber 3, and a control rod 18 extending to the outside of the furnace body base 1 is fixedly connected to one side of the ash leakage plate 17. An ash collection drawer 19 is slidably connected inside the furnace body base 1 below the ash leakage plate 17. A handle 20 is fixedly connected to one side of the ash collection drawer 19. By pushing the control rod 18, the ash leakage plate 17 can be moved, so that the ash falls into the ash collection drawer 19. The ash slag falling from the ash leakage plate 17 can be easily collected through the ash collection drawer 19, and the ash collection drawer 19 can be easily taken out through the handle 20.

[0024] like Figure 1-5 As shown, in this utility model, a rectangular box is provided between the furnace body partition 8 and the hopper 9, and heating boxes 21 are slidably connected to both ends of the rectangular box. A pull handle 22 is fixedly connected to one side of the heating box 21. The heating box 21 can be easily pulled out or pushed in from the rectangular box by the pull handle 22. When it is necessary to heat the items, they can be placed in the heating box 21 and heated by the heat generated by the furnace body, which effectively utilizes the waste heat.

[0025] like Figure 1 and Figure 2 As shown, in this utility model, a feed inlet cover plate 23 is installed on the top plate 2 of the furnace body above the hopper 9. The feed inlet cover plate 23 can prevent dust and other debris from falling into the hopper 9, and can also reduce heat loss to a certain extent and improve energy utilization efficiency.

[0026] In this utility model, a combustion chamber is formed inside the inner liner 4, and a smoke chamber is formed between the inner liner 4 and the outer barrel 5 of the furnace. The flue gas inside the inner liner 4 enters the smoke chamber through the through hole on the heat dissipation plate 6, and then the smoke exhaust fan 13 is used to exhaust the flue gas through the smoke exhaust pipe 14.

[0027] Working Principle: In practical implementation, biomass fuel is first placed into the combustion chamber formed by the inner liner 4. The air intake fan 11 is then activated, and air enters the combustion chamber 3 through the air intake pipe 12, providing sufficient oxygen for fuel combustion and ensuring complete combustion. The high-temperature flue gas generated by combustion flows upward within the inner liner 4 and enters the smoke chamber formed between the inner liner 4 and the outer casing 5 of the furnace body through the through holes on the heat dissipation plate 6. Simultaneously, the exhaust fan 13 is activated, utilizing its suction force to direct the flue gas flow within the smoke chamber, ultimately discharging it from the furnace body through the exhaust pipe 14. This ensures smooth exhaust of the flue gas and reduces its retention within the furnace body.

[0028] During combustion, the ash produced slides down the combustion plate 15 and the ash guide plate 16 onto the ash discharge plate 17. When it is necessary to clean the ash, push the control lever 18 to move the ash discharge plate 17, and the ash will fall into the ash collection drawer 19 below. To clean, simply hold the handle 20 and pull out the ash collection drawer 19. This design avoids dust problems during ash cleaning and simplifies the ash collection and cleaning process.

[0029] The bottom of the hopper 9 is connected to the combustion chamber 3 via the feeding mechanism 10. When the furnace is working, heat is transferred to the heating box 21 inside the rectangular box between the hopper 9 and the furnace partition 8. Users can pull out the heating box 21 by holding the handle 22 as needed, put in the items to be heated, and use the residual heat generated by the furnace to heat them, thus improving energy utilization.

[0030] Furthermore, the feed inlet cover 23 on the top plate 2 of the furnace body, located above the hopper 9, effectively prevents dust and other debris from falling into the hopper 9 during daily use, while also reducing heat loss. Throughout the entire usage process, this improved household biomass fuel stove, through its reasonable structural design and the synergistic effect of the fan, achieves efficient and clean combustion of fuel, reduces smoke pollution, and improves operational and maintenance convenience, providing users with a better user experience.

[0031] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An improved household biomass fuel stove, comprising a stove base (1) and a stove top plate (2), characterized in that: A combustion chamber (3) is fixedly installed on the furnace base (1), and an inner liner (4) is fixedly installed on the combustion chamber (3). An outer furnace shell (5) is fitted around the combustion chamber (3) and the inner liner (4) and is installed between the furnace base (1) and the furnace top plate (2). The top of the inner liner (4) is fixedly connected to the outer furnace shell (5) by a heat dissipation plate (6). The furnace base (1) and the furnace top plate (2) on the side away from the outer furnace shell (5) are connected by a mesh side plate (7). Inside the outer furnace shell (5), on the side between the inner liner (4) and the combustion chamber (3), there is a fixed connection. The furnace body partition (8) has a hopper (9) installed at the bottom of the furnace body top plate (2) on one side of the furnace body outer barrel (5). The bottom of the hopper (9) is connected to the combustion chamber (3) through a feeding mechanism (10). An air intake fan (11) is installed in the furnace body base (1). The air intake fan (11) is connected to the combustion chamber (3) through an air intake pipe (12). A smoke extraction fan (13) is installed at one end of the grid side plate (7) in the furnace body base (1). The suction end of the smoke extraction fan (13) is provided with a smoke extraction pipe (14) that extends between the combustion chamber (3) and the furnace body outer barrel (5).

2. The improved household biomass fuel stove according to claim 1, characterized in that: The combustion chamber (3) is connected to the inner liner (4), and a combustion plate (15) and a dust guide plate (16) are fixedly connected inside the combustion chamber (3).

3. An improved household biomass fuel stove according to claim 2, characterized in that: The bottom of the combustion chamber (3) is slidably connected to an ash-leaking plate (17), and a control rod (18) extending to the outside of the furnace body base (1) is fixedly connected to one side of the ash-leaking plate (17).

4. An improved household biomass fuel stove according to claim 3, characterized in that: An ash collection drawer (19) is slidably connected inside the furnace base (1) below the ash-slipping plate (17), and a handle (20) is fixedly connected to one side of the ash collection drawer (19).

5. An improved household biomass fuel stove according to claim 1, characterized in that: A rectangular box is provided between the furnace body partition (8) and the hopper (9), and heating boxes (21) are slidably connected to both ends of the rectangular box. A pull handle (22) is fixedly connected to one side of the heating box (21).

6. An improved household biomass fuel stove according to claim 1, characterized in that: The furnace body top plate (2) is equipped with a feed inlet cover plate (23) located above the hopper (9).

7. An improved household biomass fuel stove according to claim 1, characterized in that: The inner liner (4) forms a combustion chamber, and a smoke chamber is formed between the inner liner (4) and the outer barrel (5) of the furnace. The smoke inside the inner liner (4) enters the smoke chamber through the through hole on the heat dissipation plate (6), and then the smoke is discharged through the smoke extraction pipe (14) by the smoke extraction fan (13).

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