Anti-choking automatic smoke discharging particle furnace

Abstract

The utility model aims to provide the anti-choking automatic smoke discharging particle furnace which can adjust internal air distribution and oxygen supply and reduce smoke generation. The automatic smoke exhaust pipe is used for adjusting the smoke exhaust speed, the air inlet adjusting piece is arranged on the first side of the furnace body, a combustion cavity is formed in the furnace body, and the automatic smoke exhaust pipe is arranged at the top of the furnace body and communicated with the combustion cavity; the air inlet adjusting part is provided with a first pipeline, a second pipeline, a drying box and an adjusting assembly, one end of the first pipeline and one end of the second pipeline communicate with the combustion cavity, the second pipeline forms an access end located in the middle section and an opening end located in the rear section, the top of the drying box communicates with the first pipeline, and the bottom of the drying box communicates with the access end. The first pipeline, the drying box and the second pipeline form a smoke backflow channel, and the adjusting assembly can adjust the air suction amount of the opening end of the second pipeline. The utility model is applied to the technical field of particle furnaces.

Description

Technical Field

[0001] The utility model relates to the technical field of pellet stoves, and particularly relates to an anti-choking automatic smoke exhaust pellet stove. Background Art

[0002] A pellet stove, also known as a biomass pellet stove, is a heating device that uses biomass pellets as fuel and is favored for its environmental protection characteristics and high thermal efficiency. Biomass pellet fuel is usually made from sawdust or straw, which is a renewable resource. When burned, it does not produce sulfur dioxide and phosphorus pentoxide, thus reducing environmental pollution. There are various types of pellet stoves on the market, including air stoves, duct air stoves, and pellet hydronic stoves. The air stove is equipped with a front fan and can quickly and efficiently heat a room. The duct air stove distributes hot air to different rooms in the home through a duct network. The pellet hydronic stove is connected to a radiator circuit to heat the whole house and can even provide domestic hot water.

[0003] There is a problem of insufficient air supply in the pellet combustion stoves on the market. When burning in a stove body with insufficient air supply, the oxygen content is relatively low, and in this case, incomplete combustion of the granular fuel is likely to occur. Incomplete combustion of the fuel will produce a large amount of flue gas, which contains water vapor, carbon dioxide, sulfur dioxide, water vapor, oxygen, nitrogen, carbon monoxide, hydrogen, methane, etc., which is neither environmentally friendly nor causes waste of fuel pellets. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an anti-choking automatic smoke exhaust pellet stove that can adjust the internal air supply and oxygen supply to reduce the generation of flue gas.

[0005] The technical solution adopted by the utility model is as follows: The utility model includes a stove body, an automatic smoke exhaust pipe for adjusting the smoke exhaust speed, and an air intake adjusting member arranged on the first side of the stove body. A combustion chamber is formed in the stove body. The automatic smoke exhaust pipe is arranged on the top of the stove body and is communicated with the combustion chamber.

[0006] The air intake adjusting member is provided with a first pipe, a second pipe, a drying box, and an adjusting assembly. One ends of the first pipe and the second pipe are both communicated with the combustion chamber. The second pipe is formed with an access end in the middle section and an opening end in the rear section. The top of the drying box is communicated with the first pipe, and the bottom of the drying box is communicated with the access end. The first pipe, the drying box, and the second pipe form a flue gas reflux channel, and the adjusting assembly can adjust the air intake amount at the opening end of the second pipe.

[0007] Furthermore, the adjusting assembly includes a fixing bracket slidably connected to the open end of the second pipe, a rotating shaft fixedly connected to the middle of the fixing bracket, a fixed fan blade arranged inside the fixing bracket, a movable fan blade rotatably connected to the rotating shaft, and an adjusting cover. The movable fan blade is formed with an adjusting post, and the adjusting cover is formed with a clamping groove that is in limit fit with the adjusting post respectively. The movable fan blade and the fixed fan blade form an air flow valve to adjust the air passage area.

[0008] Furthermore, a dry material drawer is slidably connected inside the drying oven, and a grille is arranged inside the dry material drawer.

[0009] Furthermore, a feeding assembly is also arranged on the second side of the furnace body. An inlet channel communicating with the feeding assembly is formed on the first surface of the combustion chamber. The feeding assembly includes a feeding bin, a feeding motor, a feeding pusher, and a material buffer bin. The feeding bin and the feeding motor are both fixedly connected to the furnace body. A pushing cylinder for the feeding pusher to be rotatably connected is arranged inside the feeding bin. The feeding motor is arranged on one side of the feeding bin, and the movable end of the feeding motor is connected to the feeding pusher. The material buffer bin is arranged in the feeding bin. The material buffer bin is formed with a material inlet and a material outlet. The material inlet is connected to the outlet of the pushing cylinder, and the material outlet is communicated with the inlet channel.

[0010] Furthermore, the feeding pusher is conical, and a spiral pushing plate is formed on the side wall of the feeding pusher.

[0011] Furthermore, the combustion chamber is provided with a combustion tray for receiving granular fuel, an ash box, and an igniter. The combustion tray is detachably connected to the middle of the combustion chamber and is located below the outlet of the inlet channel. The ash box is slidably connected to the bottom of the combustion chamber. The igniter is arranged below the material inlet.

[0012] Furthermore, the automatic smoke exhaust pipe includes an exhaust pipe arranged on the top of the furnace body and an adjusting fan arranged at the outlet end of the exhaust pipe. A flue gas detection piece for detecting the soot concentration is arranged inside the exhaust pipe. The flue gas detection piece cooperates with an external control component to adjust the exhaust speed of the adjusting fan.

[0013] Furthermore, the furnace body is formed with a heating chamber located above the combustion chamber. The heating chamber is formed with a heating groove communicating with the combustion chamber and a heat conducting plate arranged in the heating groove. A plurality of electric fans for blowing out heat are also arranged at the front of the heating chamber.

[0014] The beneficial effects of the present utility model are as follows: Since the present utility model adopts the structure of an air intake adjusting member, the first pipe, the second pipe and the drying box form a flue gas reflux channel. When the particles are burning, the automatic exhaust pipe is closed, the gas density in the combustion chamber decreases, becomes lighter and rises, the internal air pressure drops, and oxygen is inhaled from the open end of the second pipe. At this time, the first pipe is connected to the second pipe through the drying box. Due to the relatively high flow rate in the second pipe, an adsorption effect is formed on the flue gas in the first pipe, so that the flue gas rising to the upper part of the combustion chamber mixes with the externally inhaled air along the flue gas reflux channel and enters the combustion box again for secondary combustion. This can reduce the phenomena of carbon deposition and slagging in the flue gas, thereby prolonging the service life of the pellet stove and enhancing the stability during the use of the pellet stove. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the air intake adjusting member of the present utility model;

[0017] Figure 3 is an exploded view of the adjusting assembly of the present utility model;

[0018] Figure 4 is an exploded view of the feeding assembly of the present utility model;

[0019] Figure 5 is a schematic structural diagram of the automatic exhaust pipe of the present utility model;

[0020] Figure 6 is an exploded view of the furnace body of the present utility model;

[0021] Figure 7 is Figure 6 a partial enlarged view of part A in

[0022] In the figure: 1. Furnace body; 2. Combustion chamber; 21. Feeding channel; 22. Combustion tray; 23. Ash box; 24. Igniter; 3. Automatic exhaust pipe; 31. Exhaust pipe; 32. Adjusting fan; 4. Air intake adjusting member; 41. First pipe; 42. Second pipe; 43. Drying box; 44. Adjusting assembly; 441. Fixed frame; 442. Rotating shaft; 443. Fixed fan blade; 444. Movable fan blade; 445. Adjusting cover; 446. Adjusting column; 447. Card slot; 45. Dry material drawer; 5. Feeding assembly; 51. Feeding bin; 52. Feeding motor; 53. Feeding push head; 54. Material buffer bin; 6. Heating chamber; 61. Electric fan. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Such as Figures 1 to 7As shown in the figure, in this embodiment, the utility model includes a furnace body 1, an automatic smoke exhaust pipe 3 for adjusting the smoke exhaust speed, and an air intake adjusting member 4 provided on the first side of the furnace body 1. A combustion chamber 2 is formed inside the furnace body 1. The automatic smoke exhaust pipe 3 is arranged on the top of the furnace body 1 and is communicated with the combustion chamber 2. The air intake adjusting member 4 is provided with a first pipe 41, a second pipe 42, a drying box 43 and an adjusting assembly 44. One ends of the first pipe 41 and the second pipe 42 are both communicated with the combustion chamber 2. The second pipe 42 is formed with an access end in the middle section and an open end in the rear section. The top of the drying box 43 is communicated with the first pipe 41, and the bottom of the drying box 43 is communicated with the access end. The first pipe 41, the drying box 43 and the second pipe 42 form a flue gas reflux channel. The adjusting assembly 44 can adjust the air intake amount at the open end of the second pipe 42. The communication port of the second pipe 42 with the combustion chamber 2 is located below the combustion tray 22, and the communication port of the first pipe 41 with the combustion chamber 2 is located above the combustion tray 22. With the structure of the air intake adjusting member 4, the first pipe 41, the second pipe 42 and the drying box 43 form a flue gas reflux channel. When the granular fuel is burning, the automatic smoke exhaust pipe 3 is closed. The gas density in the combustion chamber 2 decreases, becomes lighter and rises, and the internal air pressure drops. Oxygen is inhaled from the open end of the second pipe 42. At this time, the first pipe 41 is communicated with the second pipe 42 through the drying box 43. Due to the relatively high flow rate of the second pipe 42, an adsorption effect is formed on the flue gas in the first pipe 41, so that the flue gas rising to the upper part of the combustion chamber 2 is mixed with the externally inhaled air along the flue gas reflux channel and enters the combustion chamber again to realize secondary combustion. This can reduce the carbon deposition and slagging phenomena in the flue gas, thereby prolonging the service life of the pellet stove and enhancing the stability during the use of the pellet stove.

[0024] A smoke exhaust channel is formed on the second side of the combustion chamber 2. The smoke outlet of the smoke exhaust channel is communicated with the automatic smoke exhaust pipe 3. The smoke inlet hole of the smoke exhaust channel is located in the middle of the second side of the combustion chamber 2 and is also located above the combustion tray 22, which is used to timely discharge the flue gas in the combustion chamber 2. The automatic smoke exhaust pipe 3 regularly detects the internal concentration through a flue gas detection member arranged inside. When the flue gas detection member detects an increase in the flue gas concentration, it means that the granular fuel inside the combustion chamber 2 is incompletely burned. At this time, the adjusting fan 32 is started to increase the air intake amount of the combustion chamber 2 from the side of the adjusting assembly 44, improve the oxygen content in the combustion chamber 2, and make the granular fuel burn more fully, reducing the flue gas generated due to incomplete combustion.

[0025] In this embodiment, the adjusting assembly 44 includes a fixing frame 441 slidably connected to the opening end of the second pipe 42, a rotating shaft 442 fixedly connected to the middle of the fixing frame 441, a fixed fan blade 443 arranged inside the fixing frame 441, a movable fan blade 444 rotatably connected to the rotating shaft 442, and an adjusting cover 445. The movable fan blade 444 is formed with an adjusting column 446, and the adjusting cover 445 is formed with a clamping groove 447 that is in limit fit with the adjusting column 446 respectively. The movable fan blade 444 and the fixed fan blade 443 form an air flow valve to adjust the air passing area. A chute is provided at the opening end of the second pipe 42. The fixing frame 441 is square-shaped. Two groups of limiting grooves are provided at one end of the fixing frame 441, and the two groups of limiting grooves are in limit fit with the fixed fan blade 443 to prevent the fixed fan blade 443 from rotating. The movable fan blade 444 and the fixed fan blade 443 are both symmetrically provided with two groups of 90-degree sector blocks. An opening connected to the rotating shaft 442 is provided in the middle of the two groups of sector blocks. The movable fan blade 444 is arranged on one side of the fixed fan blade 443. The surface of the rotating movable fan blade 444 slides relative to the surface of the fixed fan blade 443. When the movable fan blade 444 and the fixed fan blade 443 are perpendicular to each other, they form a circular structure equivalent to the inner diameter of the second pipe 42, maximizing the restriction of the air intake from one side of the opening end of the second pipe 42. When the movable fan blade 444 and the fixed fan blade 443 coincide, the air intake at the opening end of the second pipe 42 is at the maximum value. Two groups of convex rods are formed on the outer circumference of the adjusting cover 445. The two groups of convex rods facilitate the user to hold and rotate the adjusting rod, thereby adjusting the rotation angle of the movable fan blade 444.

[0026] In this embodiment, a dry material drawer 45 is slidably connected inside the drying box 43. A grid is provided inside the dry material drawer 45, and the grid is used to support granular fuel. The drying box 43 can use flue gas preheating to reduce the moisture content in the granular fuel.

[0027] In this embodiment, a feeding assembly 5 is further provided on the second side of the furnace body 1. An inlet passage 21 communicating with the feeding assembly 5 is formed on the first surface of the combustion chamber 2. The feeding assembly 5 includes a feeding bin 51, a feeding motor 52, a feeding pusher 53, and a material buffer bin 54. Both the feeding bin 51 and the feeding motor 52 are fixedly connected to the furnace body 1. A pushing cylinder for the feeding pusher 53 to be rotatably connected is provided in the feeding bin 51. The feeding motor 52 is arranged on one side of the feeding bin 51, and the movable end of the feeding motor 52 is connected to the feeding pusher 53. The material buffer bin 54 is arranged in the feeding bin 51. The material buffer bin 54 is formed with a feeding port and a discharging port. The feeding port is connected to the outlet of the pushing cylinder, and the discharging port is communicated with the inlet passage 21. The feeding motor 52 is a rotary motor, and the movable end of the feeding motor 52 is connected to one end of the feeding pusher 53. The feeding pusher 53 is designed with a conical structure. The spiral pushing plate formed in cooperation with the feeding pusher 53 is used to compress and push out the particles. The input amount of the granular fuel can be adjusted by the output power of the feeding motor 52. The outlet side of the inlet passage 21 on one side of the combustion chamber 2 is formed with a discharging plate, and the discharging plate pushes the granular fuel to the middle of the combustion tray 22, avoiding blockage at the outlet side and affecting the combustion effect.

[0028] In this embodiment, the feeding pusher 53 is conical, and a spiral pushing plate is formed on the side wall of the feeding pusher 53.

[0029] In this embodiment, the combustion chamber 2 is provided with a combustion tray 22 for receiving granular fuel, an ash box 23, and an igniter 24. The combustion tray 22 is detachably connected to the middle of the combustion chamber 2 and is located below the outlet of the inlet passage 21. The ash box 23 is slidably connected to the bottom of the combustion chamber 2. The igniter 24 is arranged below the feeding port. The length of the combustion tray 22 is less than the width of the combustion chamber 2. One end of the combustion tray 22 is provided with a hanging ear for easy screw connection and fixation. A supporting block is formed in the middle of the combustion chamber 2, and the supporting block is used to support the bottom of the combustion tray 22 so that the combustion tray 22 is stably placed in the middle of the combustion chamber 2. The ash box 23 is slid into the combustion chamber 2 and is located below the combustion tray 22 for collecting the residual ashes after combustion. The igniter 24 is fixedly connected to the side wall of the combustion chamber 2. At the same time, an ignition hole cooperating with the igniter 24 is provided in the combustion tray 22. The igniter 24 passes through the ignition hole to ignite the granular fuel in the combustion tray 22. The combustion chamber is provided with an observation door, and a transparent observation window is formed in the middle of the observation door, facilitating the user to observe the fuel combustion situation.

[0030] In this embodiment, the automatic smoke exhaust pipe 3 includes an exhaust pipe 31 disposed at the top of the furnace body 1 and an adjusting fan 32 disposed at the outlet end of the exhaust pipe 31. A flue gas detector for detecting the soot concentration is provided in the exhaust pipe 31. The flue gas detector cooperates with an external control component to adjust the exhaust speed of the adjusting fan 32. The flue gas detector is located in the middle of the exhaust pipe 31. The flue gas detector cooperates with an external control component to control the opening and closing of the adjusting fan 32 and adjust the rotation speed. When the detected concentration of the outflowing flue gas increases, the adjusting fan 32 is turned on to increase the amount of air inhaled by the combustion chamber 2 from one side of the adjusting component 44, increase the oxygen content in the combustion chamber 2, enable the pellet fuel to burn more fully, discharge the flue gas generated due to incomplete combustion, and ensure the combustion quality of the internal fuel. When the detected flue gas concentration is at a normal level, the rotation speed of the adjusting fan 32 is reduced or turned off, so that the flue gas flows back along the flue gas return channel for secondary combustion.

[0031] In this embodiment, the furnace body 1 forms a heating chamber 6 above the combustion chamber 2. The heating chamber 6 forms a heating groove communicating with the combustion chamber 2 and a heat conducting plate disposed in the heating groove. A plurality of electric fans 61 for blowing out heat are further provided at the front part of the heating chamber 6. The heat conducting plate is of a metal structure and transfers the heat in the combustion chamber 2 into the heating chamber 6. The plurality of electric fans 61 blow out hot air to output heat to the indoor environment, quickly and efficiently heating up the room.

[0032] The working principle of the present utility model:

[0033] The granular fuel is put into the feeding bin 51. The feeding motor 52 drives the feeding push head 53 to rotate. The granular fuel enters the feeding bin 51 along the spiral push plate on the feeding push head 53 along the feeding cylinder. The fuel enters the feeding channel 21 along the inclined surface at the bottom of the feeding bin 51 and drops onto the combustion tray 22. After the fuel accumulates to a certain extent, the igniter 24 ignites the fuel;

[0034] During the combustion of the pellets, the automatic smoke exhaust pipe 3 is in a closed or low-flow state. At this time, the gas density in the combustion chamber 2 decreases, becomes lighter and rises, and the internal air pressure drops. Oxygen is inhaled from the open end of the second pipe 42. At this time, the first pipe 41 is communicated with the second pipe 42 through the drying box 43. Due to the relatively high flow rate of the second pipe 42, an adsorption effect is formed on the flue gas in the first pipe 41, so that the flue gas rising to the upper part of the combustion chamber 2 mixes with the externally inhaled air and enters the combustion box again for secondary combustion;

[0035] When the flue gas detector detects an increase in the flue gas concentration, it indicates that the pellet fuel in the combustion chamber 2 is incompletely burned. At this time, the adjusting fan 32 is started to increase the amount of air inhaled by the combustion chamber 2 from one side of the adjusting component 44, increase the oxygen content in the combustion chamber 2, enable the pellet fuel to burn more fully, discharge the flue gas generated due to incomplete combustion, and reduce the accumulation of flue gas.

[0036] Although the embodiments of the present utility model are described in terms of actual solutions, they do not constitute a limitation to the meaning of the present utility model. For those skilled in the art, modifications to its implementation solutions according to this specification and combinations with other solutions are obvious.

Claims

1. An anti-choking automatic smoke exhaust pellet stove, comprising a stove body (1), wherein a combustion chamber (2) is formed inside the stove body (1), and is characterized in that: It further includes an automatic smoke exhaust pipe (3) for adjusting the smoke exhaust speed and an air intake adjusting member (4) disposed on the first side of the furnace body (1). The automatic smoke exhaust pipe (3) is disposed on the top of the furnace body (1) and is communicated with the combustion chamber (2). The air intake adjusting member (4) is provided with a first pipe (41), a second pipe (42), a drying box (43) and an adjusting assembly (44). One end of the first pipe (41) and the second pipe (42) are both communicated with the combustion chamber (2). The second pipe (42) is formed with an access end in the middle section and an open end in the rear section. The top of the drying box (43) is communicated with the first pipe (41), and the bottom of the drying box (43) is communicated with the access end. The first pipe (41), the drying box (43) and the second pipe (42) form a flue gas return channel, and the adjusting assembly (44) can adjust the air intake amount at the open end of the second pipe (42).

2. The automatic smoke exhaust particulate stove for preventing choking according to claim 1, wherein: The adjusting assembly (44) includes a fixing frame (441) slidably connected to the open end of the second pipe (42), a rotating shaft (442) fixedly connected to the middle of the fixing frame (441), a fixed fan blade (443) disposed inside the fixing frame (441), a movable fan blade (444) rotatably connected to the rotating shaft (442), and an adjusting cover (445). The movable fan blade (444) is formed with an adjusting column (446), and the adjusting cover (445) is formed with a card slot (447) which is in limit fit with the adjusting column (446) respectively. The movable fan blade (444) and the fixed fan blade (443) form an air flow valve to adjust the air passing area.

3. The automatic smoke exhaust particle stove for preventing choking according to claim 1, characterized in that: A dry material drawer (45) is slidably connected inside the drying box (43), and a grille is provided inside the dry material drawer (45).

4. The automatic smoke-exhausting particulate stove for preventing choking according to claim 1, wherein: A feeding assembly (5) is further disposed on the second side of the furnace body (1). A feeding channel (21) communicated with the feeding assembly (5) is formed on the first surface of the combustion chamber (2). The feeding assembly (5) includes a feeding bin (51), a feeding motor (52), a feeding push head (53) and a material buffer bin (54). The feeding bin (51) and the feeding motor (52) are both fixedly connected to the furnace body (1). The feeding motor (52) is disposed on one side of the feeding bin (51). A pushing cylinder for the feeding push head (53) to be rotatably connected is provided inside the feeding bin (51). The material buffer bin (54) is disposed in the feeding bin (51). The material buffer bin (54) is formed with a feeding port and a discharging port. The feeding port is connected to the outlet of the pushing cylinder, and the discharging port is communicated with the feeding channel (21).

5. The automatic smoke exhaust particulate stove for preventing choking according to claim 4, wherein: The feeding push head (53) is conical, and a spiral pushing plate is formed on the side wall of the feeding push head (53).

6. The automatic smoke exhaust particle stove for preventing choking according to claim 4, wherein: The combustion chamber (2) is provided with a combustion tray (22) for receiving particulate fuel, an ash box (23) and an igniter (24). The combustion tray (22) is detachably connected to the middle of the combustion chamber (2) and is located below the outlet of the feed channel (21). The ash box (23) is slidably connected to the bottom of the combustion chamber (2), and the igniter (24) is arranged below the feed port.

7. The automatic smoke exhaust particulate stove for preventing choking according to claim 1, wherein: The automatic smoke exhaust pipe (3) includes an exhaust pipe (31) arranged at the top of the furnace body (1) and an adjusting fan (32) arranged at the outlet end of the exhaust pipe (31). A flue gas detection member for detecting the soot concentration is arranged in the exhaust pipe (31), and the flue gas detection member cooperates with an external control component to adjust the exhaust speed of the adjusting fan (32).

8. The automatic smoke-exhaust particulate stove for preventing choking according to claim 1, wherein: The furnace body (1) forms a heating chamber (6) above the combustion chamber (2). The heating chamber (6) forms a heating groove communicating with the combustion chamber (2) and a heat conducting plate arranged in the heating groove. A plurality of electric fans (61) for blowing out heat are further arranged at the front part of the heating chamber (6).

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