A pellet burner

Abstract

The present application relates to a kind of particle combustor, including shell and air inlet channel, shell is opened at both ends in vertical direction and forms feeding port and discharge port, air inlet is provided on the side wall of shell, air inlet channel is horizontally arranged in shell, the end of air inlet channel is connected with air inlet, air outlet groove is provided on air inlet channel, air outlet groove makes the inner cavity of air inlet channel and the inner cavity of shell communicate. After using such structure, the contact area of fuel and air is increased, so that fuel is more easily combusted, and when facing fuel with different particle sizes, fuel can be combusted stably and fully, and resource waste is not caused.

Description

Technical Field

[0001] This invention relates to a pellet burner, and more particularly to a burner that enables stable and complete combustion of pellet fuels of different sizes. Background Technology

[0002] As people's living standards improve and their pursuit of leisure increases, more and more people enjoy outdoor activities during holidays, leading to the emergence of various types of wood-burning stoves on the market. Currently, most wood-burning stoves are designed for use both inside and outside tents, serving purposes such as cooking, heating, and more. However, due to the low combustion efficiency of firewood and its tendency to cause air pollution, people have begun to choose pellet fuel as a substitute, resulting in the availability of matching pellet burners on the market.

[0003] Although these burners can serve as containers for burning pellet fuel, their structural design is relatively fixed, and the contact area between the fuel and air is small. When faced with fuels of different particle sizes, unstable and incomplete combustion often occurs, which is not only time-consuming and labor-intensive, but also a waste of resources. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the technical problem to be solved by the present invention is a burner that can stably and completely burn particulate fuel of different sizes.

[0005] To solve the above-mentioned technical problems, the present invention proposes a pellet burner, including a shell and an air inlet channel. The shell has two vertical openings at both ends to form a feeding port and a discharging port. An air inlet is provided on the side wall of the shell. The air inlet channel is horizontally arranged inside the shell. The end of the air inlet channel is connected to the air inlet. An air outlet groove is provided on the air inlet channel, which connects the air inlet, the inner cavity of the air inlet channel and the inner cavity of the shell.

[0006] Furthermore, the pellet burner also includes an enhanced air inlet, which is located on the side wall of the casing and arranged along the direction of the air inlet channel. This structure increases the amount of air entering the burner, allowing for more rapid fuel combustion.

[0007] Furthermore, the pellet burner also includes an air damper, which is movably installed on the air inlet, the booster air inlet, or both. This structure allows for adjustment of the air intake, thereby regulating the fuel combustion rate and resulting in more stable combustion.

[0008] Furthermore, the pellet burner also includes a preheating plate, one end of which is set on the air inlet channel, and the other end of which extends towards the feed port to preheat the fuel, allowing the fuel to burn more completely.

[0009] Furthermore, the air inlet channel includes a hollow circular tube, and the air outlet slot is set on the tube wall of the hollow circular tube, which facilitates processing and installation.

[0010] Furthermore, the air inlet channel also includes a guide plate with a V-shaped cross-section. The open end of the guide plate rests on the hollow circular tube so that the tip of the guide plate faces the feeding port. The preheating plate is set on the tip of the guide plate. This structure can prevent material accumulation in the air inlet channel from causing the pellet fuel to carbonize directly without combustion.

[0011] Furthermore, the air inlet channel is shaped like a pointed roof and includes a sloping top and a vertical plate. The pointed top of the sloping top faces the feeding port. The air outlet is set on the sloping top and the vertical plate. The preheating plate is set on the pointed top of the sloping top, which prevents material accumulation and simplifies the structure.

[0012] Furthermore, the pellet burner also includes a throat plate, which is positioned between the feed inlet and the air inlet channel. The throat plate is slidably connected to the side wall of the shell in a vertical direction. Both ends of the throat plate are bent towards the side wall of the shell to form a feed slope and a discharge slope, respectively. The bottoms of the feed slope and the discharge slope are in contact with the side wall of the shell. This structure allows for adjustment of the gap between the air inlet channel and the throat plate according to different sized pellet fuels, thereby adjusting the feed rate and making fuel combustion more stable.

[0013] Furthermore, a slope air inlet is provided on the discharge slope, which faces the reinforced air inlet. The slope air inlet can prevent the air intake of the reinforced air inlet from being blocked by the discharge slope, thus affecting the air intake effect.

[0014] Furthermore, a fire net is provided at the discharge port, and the fire net has elongated grid holes, the length of which is aligned with the direction of extension along the air inlet channel. This structure can block incompletely burned particulate fuel, allowing it to continue burning on the fire net while ensuring no waste of resources.

[0015] This structure increases the contact area between the fuel and air, making the fuel easier to burn. Moreover, it ensures stable and complete combustion of fuel with different particle sizes, preventing resource waste. Attached Figure Description

[0016] The invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the internal structure of the first embodiment of the pellet burner;

[0018] Figure 2 This is a schematic diagram of the outer structure of the first embodiment of the pellet burner;

[0019] Figure 3This is a schematic diagram of the internal structure of the second embodiment of the pellet burner;

[0020] Figure 4 This is a schematic diagram of the outer structure of the second embodiment of the pellet burner;

[0021] Figure 5 This is a schematic diagram of the internal structure of the third embodiment of the pellet burner;

[0022] Figure 6 This is a schematic diagram of the outer structure of the third embodiment of the pellet burner;

[0023] Among them, the shell-1, air inlet channel-2, hollow round tube-21, guide plate-22, feeding port-3, discharge port-4, air inlet-5, air outlet slot-6, boss-7, reinforced air outlet-8, air door-9, preheating plate-10, protrusion-11, throat plate-12, feeding slope-121, discharge slope-122, slope air outlet-123, fire net-13, and locking plate-14. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] like Figure 1 , Figure 3 as well as Figure 5 The pellet burner shown includes a shell 1 and an air inlet channel 2. The shell 1 has vertical openings at both ends forming a feed port 3 and a discharge port 4. An air inlet 5 is provided on the side wall of the shell 1. The air inlet channel 2 is horizontally disposed inside the shell 1, with its end connecting to the air inlet 5. An air outlet groove 6 is provided on the air inlet channel 2, connecting the air inlet 5, the inner cavity of the air inlet channel 2, and the inner cavity of the shell 1. With this structure, the air inlet channel 2 can introduce air into the burner, resulting in more complete contact between the pellet fuel and air, allowing for more complete combustion and a more vigorous flame.

[0026] The most common structure is that the shell 1 is surrounded by four walls. The edges of the four walls are bent outward and fixed with rivets at the joints to ensure the smoothness of the inner walls and at the same time ensure the storage volume.

[0027] Preferably, the left and right walls of the housing 1 are also provided with reinforced air vents 8, which are arranged along the direction of the air inlet channel 2. The reinforced air vents 8 can further increase the air intake volume. Figure 2 , Figure 6 The reinforced air vent 8 shown is a circular hole, which facilitates the insertion of the ignition gun for ignition; as shown Figure 4 The reinforced air vent 8 shown can also be designed as a uniformly arranged grid of holes, which reduces the strength of the housing 1.

[0028] Additionally, a damper 9 can be installed on the air inlet 5 or the reinforced air outlet 8. The damper 9 is movably mounted on the outer wall of the housing 1. Figure 1 , Figure 3 As shown, the damper 9 is installed on the reinforced air outlet 8, and a sliding connection mechanism is provided between the damper 9 and the housing 1, allowing it to slide up and down; as Figure 4 As shown, the damper 9 is installed on the air inlet 5, and a rotating connection mechanism is provided between the damper 9 and the housing 1, allowing it to rotate; of course, as... Figure 6 As shown, the damper 9 can also be installed on both the air inlet 5 and the reinforced air outlet 8.

[0029] For air intake duct 2, such as Figure 1 As shown, the air inlet channel 2 is shaped like a pointed roof and includes a sloping top and a vertical plate. The pointed top of the sloping roof faces the feeding port 3, and the air outlet duct 6 is provided on the sloping top and the vertical plate. As another embodiment, such as... Figure 3 , Figure 5 As shown, the air inlet channel 2 includes a hollow circular tube 21 and a guide plate 22. The two ends of the hollow circular tube 21 are fitted into the air inlets 5 on the front and rear walls. The tube wall of the hollow circular tube 21 has an air outlet groove 6. The guide plate 22 has a V-shaped cross-section, with its open end resting on the hollow circular tube 21 so that the pointed end of the guide plate 22 faces the feeding port 3. This structure prevents material accumulation on the air inlet channel 2, which could lead to unburned and directly carbonized pellet fuel.

[0030] To preheat the fuel and ensure more complete combustion, a preheating plate 10 can be installed on the air intake duct 2, such as... Figure 1 As shown, one end of the preheating plate 10 is mounted on the pointed top of the sloping top, and the other end extends towards the feeding port 3. The preheating plate 10 is provided with protrusions 11, which are respectively engaged with the front and rear walls of the housing 1 to fix the preheating plate 10. When using... Figure 3 , Figure 5 In the structure shown, the preheating plate 10 can also be mounted on the tip of the guide plate 22.

[0031] In addition, a throat plate 12 is also provided inside the housing 1, such as Figure 1 , Figure 3 , Figure 5 As shown, the throat plate 12 is positioned between the feed inlet 3 and the air inlet channel 2. Both ends of the throat plate 12 are bent towards the side wall of the housing 1 to form a feed slope 121 and a discharge slope 122, respectively. The bottoms of the feed slope 121 and the discharge slope 122 are in contact with the side wall of the housing 1. The left and right walls of the housing 1 have axially arranged elongated holes, and the throat plate 12 has positioning holes. The throat plate 12 and the housing 1 are movably connected by bolts and nuts. With this structure, the gap between the air inlet channel 2 and the throat plate 12 can be adjusted according to the size of the fuel particles, thereby adjusting the feed rate and making fuel combustion more stable.

[0032] Among them, such as Figure 1 As shown, a slope air vent 123 is provided on the discharge slope 122, and the slope air vent 123 is directly opposite the reinforced air vent 8. The slope air vent 123 can prevent the air intake of the reinforced air vent 8 from being blocked by the discharge slope 122, thus avoiding affecting the air intake effect.

[0033] Meanwhile, a fire net 13 is provided on the discharge port 4. The fire net 13 is connected to the housing 1 by rivets. The fire net 13 has elongated grille holes, and the length direction of the grille holes is consistent with the extension direction along the air inlet channel 2. Figure 1 As shown, the fire net 13 is set on the steel plate that connects to the wood-burning stove; as Figure 3 , Figure 5 As shown, the fire mesh 13 is a detachable design, installed on the housing 1, and can be replaced according to the size of the fuel particles. When the fuel is not fully burned, the outside turns into ash while the inside remains unburned. The fuel particles have a certain strength, and the fire mesh 13 supports the fuel to continue burning inside the housing 1. When the fuel is completely burned, it turns into ash and loses its strength. Under the gravity of the unburned fuel above, the ash collapses downwards and falls through the holes in the fire mesh 13. This cycle ensures that the fuel falls at a certain speed after burning, allowing the burner to continue burning.

[0034] like Figure 1 As shown, a locking plate 14 is also provided on the steel plate that connects to the wood-burning stove. The locking plate 14 is movably installed on the steel plate by bolts and nuts to ensure the stable installation of the burner. The structure is simple.

[0035] In use, the burner is installed on the wall of the wood-fired stove. Pellets are fed into the casing 1 through the feed port 3. The fuel is ignited using an igniter inserted into the air inlet 5 or the booster vent 8. The flame then bursts out from the discharge port 4 into the stove. When the fire is strong, the damper 9 can slide downwards or rotate to block the air inlet 5 or the booster vent 8, reducing the amount of air entering. Alternatively, the throat plate 12 can be lowered to reduce the gap between the discharge slope 122 and the air inlet channel 2, slowing the fuel's descent. When the fire is weak, the opposite operation is performed. Furthermore, by adjusting the position of the throat plate 12, stable and complete combustion of fuel pellets of different sizes can be achieved.

[0036] In summary, the above description is only a preferred embodiment of the present invention and is 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 within the protection scope of the present invention.

Claims

1. A pellet burner, characterized by: The device includes a housing and an air inlet channel. The housing has vertical openings at both ends to form a feeding port and a discharging port. An air inlet is provided on the side wall of the housing. The air inlet channel is horizontally arranged inside the housing. The end of the air inlet channel is connected to the air inlet. An air outlet groove is provided on the air inlet channel, which connects the air inlet, the inner cavity of the air inlet channel, and the inner cavity of the housing. It also includes a throat plate, which is disposed between the feed inlet and the air inlet channel. The throat plate is slidably connected to the side wall of the shell in the vertical direction. The two ends of the throat plate are bent toward the side wall of the shell to form a feed slope and a discharge slope, respectively. The bottom of the feed slope and the discharge slope are in contact with the side wall of the shell. By adjusting the position of the throat plate, the gap between the air inlet channel and the throat plate is changed, thereby adjusting the feed speed to suit different sized pellet fuels.

2. The pellet combustor of claim 1, wherein: It also includes reinforced air vents, which are disposed on the side wall of the housing and arranged along the direction of the air inlet channel.

3. The pellet combustor of claim 2, wherein: It also includes a damper, which is movably installed on the air inlet or the reinforced air outlet, or both.

4. The pellet combustor of claim 3, wherein: It also includes a preheating plate, one end of which is disposed on the air inlet channel, and the other end of which extends toward the feeding port.

5. The pellet combustor of claim 4, wherein: The air inlet channel includes a hollow circular tube, and the air outlet slot is disposed on the tube wall of the hollow circular tube.

6. The pellet burner according to claim 5, characterized in that: The air inlet channel also includes a guide plate with a V-shaped cross-section. The open end of the guide plate rests on the hollow round tube so that the tip of the guide plate faces the feeding port. The preheating plate is set on the tip of the guide plate.

7. The pellet burner according to claim 4, characterized in that: The air inlet channel is shaped like a pointed roof and includes a sloping top and a vertical plate. The pointed top of the sloping top faces the feeding port. The air outlet is provided on the sloping top and the vertical plate. The preheating plate is provided on the pointed top of the sloping top.

8. The pellet burner according to claim 2, characterized in that: The discharge slope is provided with a slope air vent, which is directly opposite the reinforced air vent.

9. The pellet burner according to claim 1, characterized in that: The discharge port is equipped with a fire net, and the fire net has elongated grid holes. The length direction of the grid holes is consistent with the extension direction along the air inlet channel.

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