Smoke-proof biomass fuel stove

Abstract

The present invention provides a smoke-leakage-proof biomass fuel stove, which relates to the technical field of biomass fuel stoves and includes a stove body, a feed barrel, an air guide pipe, and a flue; the stove body is provided with a furnace chamber, and a furnace port connected to the furnace chamber is provided on the top surface; a burner is provided in the furnace chamber, and a furnace cover is provided above the furnace port; the lower part of the feed barrel passes through the stove body and extends into the furnace chamber; the air guide pipe is located in the furnace wall of the stove body and extends upward into the furnace cover; the flue is provided on the side of the stove body and is connected to the furnace cover. The smoke-leakage-proof biomass fuel stove provided by the present invention utilizes the air guide pipe to guide the combustible gas generated by the feed barrel near the furnace chamber, thereby achieving effective guidance of the combustible gas into the furnace cover, facilitating its subsequent full utilization, and avoiding the problem of combustible gas escaping from the inlet end of the feed barrel. This not only ensures the stability of the biomass fuel in the feed barrel, but also achieves full utilization of the small amount of combustible gas generated at the lower end of the feed barrel, thereby improving energy utilization.

Description

Technical Field

[0001] The present invention belongs to the technical field of biomass fuel stoves, and more particularly, relates to a smoke leakage-proof biomass fuel stove. Background Art

[0002] When using a biomass fuel stove for heating, since the lower end of the feed barrel extends into the lower part of the furnace body, it is affected by the heat generated by the incomplete combustion of the biomass fuel in the furnace. Therefore, part of the biomass fuel at the lower end of the feed barrel will also produce a small amount of combustible gas. This part of the gas is difficult to flow downward through the furnace to achieve normal heating use. In severe cases, the gas will escape from the inlet end of the feed barrel, which greatly affects the normal combustion and also causes a certain impact on the personal safety of the operator. Summary of the Invention

[0003] The purpose of the present invention is to provide a smoke-leakage-proof biomass fuel stove to solve the technical problems in the prior art of combustible gas generated at the lower end of the feeding barrel of the smoke-leakage-proof biomass fuel stove, which is insufficiently utilized and escapes to the inlet end of the feeding barrel, causing safety hazards.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a smoke-leakage-proof biomass fuel stove, including a furnace body, a feeding tube, an air guide pipe and a flue; a furnace body is provided with a furnace inside, a furnace is provided inside, and a furnace mouth connected to the furnace is provided on the top surface; a burner is provided in the furnace, and a furnace cover is provided above the furnace mouth; the feeding tube is provided on the side of the furnace body and the lower part passes through the furnace body and extends into the furnace; the air guide pipe is provided on the feeding tube and is connected to the inside of the feeding tube, the air guide pipe is located in the furnace wall of the furnace body and extends upward into the furnace cover; the flue is provided on the side of the furnace body and is connected to the furnace cover.

[0005] As a further optimization, a feeding cover for sealing the feeding port of the feeding barrel is further provided on the top of the feeding barrel, and the feeding cover is hinged to the side wall of the feeding barrel.

[0006] As a further optimization, the flue is arranged on a side of the furnace body away from the feeding cylinder, and the upper end of the air guide pipe is also provided with a guide cover extending toward one side of the flue.

[0007] As a further optimization, the guide cover is provided with a sealing plate which passes through the side wall of the guide cover and is used to block the internal airflow of the air duct. The plate surface of the sealing plate is perpendicular to the up and down direction, and the sealing plate is slidably connected to the air duct.

[0008] As a further optimization, a guide plate is provided at one end of the guide cover close to the air guide pipe, which is inclined from bottom to top toward the furnace mouth.

[0009] As a further optimization, a track for sliding connection with the sealing plate is provided on the furnace body.

[0010] As a further optimization, the flue and the feed tube are arranged on the same side of the furnace body, and a baffle is provided between the furnace mouth and the feed tube to isolate the furnace mouth from the air guide tube.

[0011] As a further optimization, the upper end of the baffle is connected to the inner wall of the top plate of the furnace cover, and the baffle is arranged away from the inlet end of the flue.

[0012] As a further optimization, the cross section of the air guide tube is rectangular, and the cross section of the feeding barrel is also rectangular.

[0013] As a further optimization, the air guide pipe is connected to the feed barrel through an air collecting pipe, and the cross-sectional area of ​​one end of the air collecting pipe connected to the feed barrel is larger than the cross-sectional area of ​​one end of the air collecting pipe connected to the air guide pipe.

[0014] The beneficial effects of the smoke leakage-proof biomass fuel stove provided by the present invention are: the smoke leakage-proof biomass fuel stove provided by the present invention utilizes an air guide pipe to discharge the combustible gas generated by the feeding barrel near the furnace, thereby achieving effective guidance of the combustible gas into the furnace cover, facilitating subsequent full utilization thereof, and avoiding the problem of combustible gas escaping from the inlet end of the feeding barrel, thereby ensuring the stability of the biomass fuel in the feeding barrel and achieving full utilization of the small amount of combustible gas generated at the lower end of the feeding barrel, thereby improving energy utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic cross-sectional view of the smoke leakage-proof biomass fuel stove provided in Example 1 of the present invention;

[0017] Figure 2 A schematic cross-sectional view of a smoke-leakage-proof biomass fuel stove according to a second embodiment of the present invention;

[0018] Figure 3 for Figure 2 Schematic diagram of the partially enlarged structure of middle Ⅰ;

[0019] Figure 4 A schematic cross-sectional view of a smoke-leakage-proof biomass fuel stove according to a third embodiment of the present invention;

[0020] Figure 5 for Figure 4 A schematic diagram of a top view and partial cross-section of the structure.

[0021] In the figure: 100, furnace body; 110, furnace chamber; 120, burner; 130, furnace cover; 140, track; 150, baffle; 200, feed barrel; 210, feed cover; 300, air guide pipe; 310, gas collecting pipe; 320, guide cover; 321, guide plate; 330, sealing plate; 400, flue. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] Please also refer to Figures 1 to 5 The smoke-leakage-proof biomass fuel stove provided by the present invention is now described. The smoke-leakage-proof biomass fuel stove includes a stove body 100, a feed barrel 200, an air duct 300, and a flue 400. The stove body 100 is provided with a furnace 110 inside, and a furnace opening connected to the furnace 110 is provided on the top surface. A burner 120 is provided in the furnace 110, and a furnace cover 130 is provided above the furnace opening. The feed barrel 200 is provided on the side of the stove body 100, and its lower portion passes through the stove body 100 and extends into the stove 110. The air duct 300 is provided on the feed barrel 200 and is connected to the inside of the feed barrel 200. The air duct 300 is located in the furnace wall of the stove body 100 and extends upward into the furnace cover 130. The flue 400 is provided on the side of the stove body 100 and is connected to the furnace cover 130. The orientations or positional relationships indicated by terms such as “upper”, “lower”, “top”, “bottom”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0024] In this embodiment, since the main axis of the feed barrel 200 is arranged at an acute angle to the vertical direction, and the lower end of the feed barrel 200 extends into the furnace 110 of the furnace body 100, the lower end of the feed barrel 200 is close to the furnace 110 and extends into the furnace 110. Under the influence of the high temperature generated by the incomplete combustion of the biomass fuel in the furnace 110, some of the biomass fuel at the lower end of the feed barrel 200 will also undergo incomplete combustion, producing a small amount of combustible gas. If this part of the gas flows toward the inlet end of the feed barrel 200 and escapes from the inlet end of the feed barrel 200, it will not only cause waste of combustible gas, but also pollute the surrounding environment, and pose certain safety hazards, which is not conducive to the normal use of the biomass fuel stove. The provision of the gas guide 300 can effectively guide this part of the gas in the feed barrel 200 to the vicinity of the furnace mouth, realize the effective utilization of the combustible gas, and improve the utilization rate of the biomass fuel. Biomass fuel furnaces are boilers that use biomass energy as fuel. These furnaces are categorized into biomass steam boilers, biomass hot water boilers, biomass hot air furnaces, and biomass thermal oil furnaces. The feed tube 200 and air duct 300 provided in this embodiment are suitable for a variety of biomass fuel furnaces. The smoke-proof biomass fuel furnace in this embodiment is a vertical biomass fuel furnace.

[0025] Compared with the prior art, the smoke-leakage-proof biomass fuel stove provided by the present invention utilizes the air guide pipe 300 to discharge the combustible gas generated by the feeding barrel 200 near the furnace 110, thereby effectively guiding the combustible gas into the furnace cover 130, facilitating its subsequent full utilization and avoiding the problem of combustible gas escaping from the inlet end of the feeding barrel 200. This not only ensures the stability of the biomass fuel in the feeding barrel 200, but also realizes the full utilization of the small amount of combustible gas generated at the lower end of the feeding barrel 200, thereby improving energy utilization.

[0026] Please also refer to Figures 1 to 3 As a specific embodiment of the smoke-leakage-proof biomass fuel stove provided by the present invention, the top of the feed barrel 200 is also provided with a feed cover 210 for sealing the feed port of the feed barrel 200, and the feed cover 210 is hinged to the side wall of the feed barrel 200. The provision of the feed cover 210 facilitates ensuring that the feed barrel 200 is effectively isolated from the external environment during the non-feeding stage, thereby avoiding adverse effects on the external environment. When the feed cover 210 is closed, the air duct 300 can be in a non-conductive form. When feeding is required, when the feed cover 210 is open, it is necessary to achieve the conduction of the air duct 300, so as to achieve the effective guidance of the combustible gas at the lower part of the feed barrel 200 to the furnace port by the air duct 300, thereby avoiding the problem of combustible gas escaping from the inlet end of the feed barrel 200.

[0027] Please also refer to Figures 1 to 3As a specific embodiment of the smoke leakage-proof biomass fuel stove provided by the present invention, the flue 400 is arranged on the side of the furnace body 100 away from the feed cylinder 200, and the upper end of the air guide pipe 300 is further provided with a guide cover 320 extending toward one side of the flue 400. In this embodiment, the feed cylinder 200 and the flue 400 are respectively arranged on opposite sides of the furnace body 100. At this time, in order to achieve effective combustion of the combustible gas in the air guide pipe 300, it is necessary to guide the combustible gas to the furnace mouth. The outlet end of the guide cover 320 is arranged toward the furnace mouth, which can guide the combustible gas to the furnace mouth for sufficient combustion. The exhaust gas from the combustion enters the flue 400 on the other side, thereby achieving smooth airflow and improving the utilization rate of the combustible gas.

[0028] Please also refer to Figures 1 to 3 As a specific embodiment of the smoke-leakage-proof biomass fuel stove provided by the present invention, a sealing plate 330 is provided on the guide cover 320, which is set through the side wall of the guide cover 320 and is used to block the internal airflow of the air guide pipe 300. The plate surface of the sealing plate 330 is perpendicular to the up and down direction, and the sealing plate 330 is slidably connected to the air guide pipe 300. When the feeding cover 210 is in a closed state, since the combustible gas of the feeding barrel 200 does not have the problem of escaping from the inlet end of the feeding barrel 200, the sealing plate 330 on the upper side of the air guide pipe 300 can be pushed to a position that closes the air guide pipe 300. The combustible gas generated at the lower end of the feeding barrel 200 enters the lower furnace 110 and moves from bottom to top in the furnace 110 to the furnace mouth for combustion. When it is necessary to open the feeding cover 210 to fill the biomass fuel, it is necessary to first slide the sealing plate 330 which is slidingly connected to the furnace body 100 to a position where the gas guide pipe 300 can be connected, so that the gas guide pipe 300 can smoothly guide the combustible gas at the lower end of the feeding barrel 200, thereby ensuring full utilization of the combustible gas.

[0029] Please also refer to Figures 1 to 3 As a specific embodiment of the smoke-leakage-proof biomass fuel stove provided by the present invention, a guide plate 321 is provided at one end of the guide hood 320, near the air duct 300, and is tilted upward toward the furnace opening. The provision of the guide plate 321 effectively guides the combustible gas produced by incomplete combustion in the air duct 300, preventing the gas from directly impacting the guide hood 320 and causing airflow problems. This allows the airflow from below to be smoothly directed to the furnace opening, ensuring full combustion of the combustible gas and achieving full energy utilization.

[0030] Please also refer to Figures 1 to 3As a specific embodiment of the smoke leakage-proof biomass fuel stove provided by the present invention, the stove body 100 is provided with a track 140 for sliding connection with the sealing plate 330. The track 140 provided on the stove body 100 can provide an effective limit for the sliding of the sealing plate 330, preventing the sealing plate 330 from shifting during the sliding process, which could cause the gas duct 300 to be loosely sealed or insufficiently opened, thereby ensuring the control of the blocking and penetration of the combustible gas.

[0031] Please also refer to Figures 4 and 5 As a specific embodiment of the smoke-leakage-proof biomass fuel stove provided by the present invention, the flue 400 and the feed barrel 200 are arranged on the same side of the stove body 100, and a baffle 150 is provided between the stove mouth and the feed barrel 200 to isolate the stove mouth from the air guide 300. When the feed barrel 200 and the flue 400 are arranged on the same side of the stove body 100, the high temperature at the stove mouth will affect the biomass fuel in the feed barrel 200. Under high temperature conditions, the biomass fuel in the feed barrel 200 is very likely to produce incomplete combustion, making it difficult to smoothly convey the material in the feed barrel 200 to the furnace 110 for incomplete combustion and the generation of combustible gas in the furnace 110.

[0032] Please also refer to Figures 4 and 5 As a specific embodiment of the smoke-leakage-proof biomass fuel stove provided by the present invention, the upper end of the baffle 150 is connected to the inner wall of the top plate of the stove cover 130, and the baffle 150 is positioned away from the inlet end of the flue 400. The upper and lower sides of the baffle 150 are connected to the top and bottom surfaces of the stove cover 130 to isolate the feed barrel 200 from the stove opening, preventing the heat at the stove opening from affecting the material in the feed barrel 200. Because the stove opening and the flue 400 must remain interconnected, the length of the baffle 150 is set to be shorter than the length of the stove cover 130 in the same direction. In this embodiment, the baffle 150 is arranged in the front-to-back direction and away from the inlet end of the flue 400, ensuring that the smoke generated at the stove opening can smoothly pass through the gap and enter the flue 400. The flue 400 is located in front of the feed barrel 200, and its inlet end is connected to the stove cover 130. The baffle 150 avoids the inlet end of the flue 400, facilitating the smooth discharge of smoke.

[0033] Please also refer to Figures 4 and 5 As a specific embodiment of the smoke-leakage-proof biomass fuel stove provided by the present invention, the air duct 300 has a rectangular cross-section, and the feed barrel 200 also has a rectangular cross-section. The rectangular cross-section of the feed barrel 200 facilitates processing and production, and reduces production costs. In this embodiment, the air duct 300 is connected to the side wall of the feed barrel 200. To ensure a good connection, the air duct 300 also has a rectangular cross-section, facilitating welding of the two.

[0034] Please also refer to Figures 4 and 5 As a specific embodiment of the smoke leakage-proof biomass fuel stove provided by the present invention, the air guide pipe 300 is connected to the feed barrel 200 through the gas collecting pipe 310, and the cross-sectional area of ​​the end of the gas collecting pipe 310 connected to the feed barrel 200 is larger than the cross-sectional area of ​​the end of the gas collecting pipe 310 connected to the air guide pipe 300. The setting of the gas collecting pipe 310 can effectively collect the combustible gas generated in the feed barrel 200 and uniformly guide it to the air guide pipe 300, thereby maximizing the collection of the combustible gas in the feed barrel 200 and making full use of the combustible gas. The gas collecting pipe 310 can be set to a hollow truncated cone shape or a polygonal prism shape, and the end with a larger cross-sectional area is connected to the side wall of the feed barrel 200 near the upper side, and the upper end is connected to the lower end of the air guide pipe 300, thereby realizing the gathering and collection of the combustible gas in the feed barrel 200 and ensuring a good collection effect. When the combustible gas above the gas guide pipe 300 is burned in time and the air pressure in this area is low, the lower airflow will also generate an upward flow due to the higher air pressure relative to the upper end of the gas guide pipe 300, thereby achieving smooth discharge of the combustible gas.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Anti-smoke biomass fuel stove, characterized in that: include: A furnace body (100) is provided with a furnace (110) therein, and a furnace opening communicating with the furnace (110) is provided on the top surface; a burner (120) is provided in the furnace (110), and a furnace cover (130) is provided above the furnace opening; A feeding cylinder (200) is arranged on the side of the furnace body (100), and the lower portion thereof passes through the furnace body (100) and extends into the furnace chamber (110); an air guide pipe (300) provided on the feeding cylinder (200) and communicating with the interior of the feeding cylinder (200); the air guide pipe (300) is located in the furnace wall of the furnace body (100) and extends upward into the furnace cover (130); a flue (400) disposed on a side of the furnace body (100) and communicating with the furnace cover (130); A feeding cover (210) for sealing the feeding port of the feeding barrel (200) is further provided on the top of the feeding barrel (200), and the feeding cover (210) is hinged to the side wall of the feeding barrel (200); The flue (400) is provided on a side of the furnace body (100) away from the feeding cylinder (200), and the upper end of the air guide pipe (300) is further provided with a guide cover (320) extending toward one side of the flue (400); The guide cover (320) is provided with a sealing plate (330) which is arranged through the side wall of the guide cover (320) and is used to block the internal airflow of the air guide pipe (300); the plate surface of the sealing plate (330) is perpendicular to the up and down direction, and the sealing plate (330) is slidably connected to the air guide pipe (300); The cross section of the air guide tube (300) is rectangular, and the cross section of the feeding cylinder (200) is also rectangular; The air guide pipe (300) is connected to the feeding barrel (200) via an air collecting pipe (310), and the cross-sectional area of ​​one end of the air collecting pipe (310) connected to the feeding barrel (200) is larger than the cross-sectional area of ​​one end of the air collecting pipe (310) connected to the air guide pipe (300).

2. The smoke-leakage-proof biomass fuel stove according to claim 1, characterized in that: The guide cover (320) is further provided at one end close to the air guide pipe (300) with a guide plate (321) that is inclined from bottom to top toward the furnace opening of the furnace body (100).

3. The smoke-leakage-proof biomass fuel stove according to claim 1, characterized in that: The furnace body (100) is provided with a rail (140) for sliding connection with the sealing plate (330).

4. The smoke-leakage-proof biomass fuel stove according to claim 3, characterized in that: The flue (400) and the feeding cylinder (200) are arranged on the same side of the furnace body (100), and a baffle (150) for isolating the furnace mouth from the air guide pipe (300) is provided between the furnace mouth of the furnace body (100) and the feeding cylinder (200).

5. The smoke-leakage-proof biomass fuel stove according to claim 4, characterized in that: The upper end of the baffle (150) is connected to the inner wall of the top plate of the furnace cover (130), and the baffle (150) is arranged to avoid the inlet end of the flue (400).

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