Biomass gasifier combustion burner

Abstract

The utility model discloses a kind of biomass gasifier combustion torch, belong to biomass gasifier technical field, including the main pipeline of combustion torch, cover and oxygen pipe, cover is fixedly arranged on main pipeline, fixedly connected with fixed plate on main pipeline, fixed plate is in cover, there is certain gap between the outside wall of fixed plate and the inside wall of cover, fixed plate, main pipeline and cover form an oxygen chamber among three, oxygen pipe is fixedly connected on cover, oxygen pipe is communicated with oxygen chamber, fixed hole is set up on fixed plate, fixed hole is communicated with oxygen chamber, multiple are set on fixed plate in fixed hole, fixed hole is obliquely set on fixed plate, fixed hole is oblique to the direction of main pipeline, the utility model has the advantages that the mixing of oxygen and fuel in combustion torch is more uniform, and the combustion of fuel is more sufficient.

Description

Technical Field

[0001] This utility model relates to the field of biomass gasification furnace technology, specifically to a biomass gasification furnace combustion nozzle. Background Technology

[0002] A biomass gasifier is a device that converts biomass raw materials (such as straw, sawdust, rice husks, etc.) into combustible gases through pyrolysis, oxidation, reduction, and other reaction processes under closed, oxygen-deficient conditions. The burner is a key component in a biomass gasifier used to mix and atomize fuel (such as pulverized coal, coal-water slurry, biomass pellets, etc.) with oxygen or air for combustion.

[0003] The combustion nozzle includes a main pipe, an inner cover, an outer cover, an oxygen pipe, a nozzle, and an ignition mechanism. Both the inner and outer covers are mounted on the main pipe, the nozzle is mounted on the inner cover, and the ignition mechanism is mounted on the inner cover. There is a gap between the inner and outer covers. The oxygen pipe is mounted on the outer cover. In use, fuel in the main pipe is sprayed through the nozzle onto the inner cover. Oxygen enters the inner cover from the oxygen pipe through the gap between the inner and outer covers and mixes with the fuel. This activates the ignition mechanism, which then ignites and burns the mixture.

[0004] Regarding the above technical conditions, there is also a defect that oxygen enters the inner casing through the gap between the inner and outer casings to mix with the fuel. However, after entering the inner casing, the oxygen is basically located at the outer edge of the inner casing, making it difficult to mix with the fuel ejected from the center of the nozzle. This results in uneven mixing of oxygen and fuel, leading to incomplete combustion of the fuel.

[0005] Based on this, the present invention designs a combustion burner for a biomass gasification furnace to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a combustion burner for a biomass gasification furnace to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a biomass gasification furnace burner, comprising a main pipe, an outer cover, and an oxygen pipe. The outer cover is fixedly mounted on the main pipe, with one end of the main pipe located within the outer cover. A fixing plate is fixedly connected to the main pipe, and the fixing plate is located within the outer cover. A certain gap exists between the outer wall of the fixing plate and the inner wall of the outer cover. An oxygen chamber is formed between the fixing plate, the main pipe, and the outer cover. The oxygen pipe is fixedly connected to the outer cover and communicates with the oxygen chamber. A fixing hole is provided on the fixing plate, and the fixing hole communicates with the oxygen chamber. Multiple fixing holes are provided on the fixing plate, and the fixing holes are inclined towards the main pipe.

[0008] Preferably, the fixing hole is provided with an assisting hole, and multiple assisting holes are provided on the fixing plate. The multiple fixing holes are located between the multiple assisting holes and the main pipe, and the diameter of the assisting hole is larger than the diameter of the fixing hole.

[0009] Preferably, the assist hole is inclinedly disposed on the fixing plate, and the assist hole is inclined toward the main pipe.

[0010] Preferably, the outer cover has a mounting hole, and an ignition needle is fixedly installed in the mounting hole. The ignition head of the ignition needle is located in the outer cover and abuts against the side of the fixing plate near the main pipe.

[0011] Preferably, the outer cover is fixedly connected with reinforcing ribs, and multiple reinforcing ribs are provided on the outer cover and fixedly connected to the main pipe.

[0012] In summary, this application has the following beneficial technical effects: During use, the fuel of the biomass gasification furnace enters the outer casing through the main pipe, and oxygen enters the outer casing through the oxygen pipe, oxygen chamber, fixing hole, and auxiliary hole. The oxygen and fuel are mixed in the outer casing. Because the auxiliary hole and fixing hole are inclined and tilted towards the main pipe, the oxygen enters the outer casing and converges towards the main pipe, allowing for better mixing with the fuel in the center of the main pipe. At the same time, oxygen can also enter the outer casing through the gap between the outer wall of the fixing plate and the inner wall of the outer casing, mixing with the fuel in the outer casing. Under the combined effect of the fixing hole, auxiliary hole, and the gap between the outer wall of the fixing plate and the inner wall of the outer casing, the mixing of oxygen and fuel is more uniform. At this time, the fuel is ignited by the ignition needle, resulting in more complete combustion. Fully combusted fuel is less likely to produce char smoke, achieving the effect of more uniform mixing of oxygen and fuel in the combustion nozzle and more complete combustion of fuel. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the front structure of the combustion nozzle in this embodiment; Figure 2 This is a schematic diagram of the combustion nozzle in this embodiment; Figure 3 This is a schematic diagram of the combustion nozzle in this embodiment; Figure 4This is a cross-sectional structural diagram of the combustion nozzle in this embodiment.

[0015] The attached diagram lists the components represented by each number as follows: 1. Ignition needle; 2. Power-assisted hole; 3. Fixing hole; 4. Fixing plate; 5. Outer cover; 6. Oxygen pipe; 7. Main pipe; 8. Reinforcing rib; 9. Oxygen chamber. Detailed Implementation

[0016] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0018] A biomass gasification furnace burner includes a main combustion pipe 7, an outer cover 5, and an oxygen pipe 6. The outer cover 5 is fixedly installed on the outer wall of the main pipe 7, with one end of the main pipe 7 located inside the outer cover 5. A fixing plate 4 is fixedly connected to the main pipe 7, located inside the outer cover 5. There is a certain gap between the outer wall of the fixing plate 4 and the inner wall of the outer cover 5. The fixing plate 4, the main pipe 7, and the outer cover 5 form an oxygen chamber 9.

[0019] The outer cover has mounting holes, and an ignition needle 1 is fixedly installed in the mounting holes. The ignition head of the ignition needle 1 is located in the outer cover 5. The ignition head of the ignition needle 1 abuts against the side of the fixing plate 4 near the main pipe 7. Activating the ignition needle 1 can ignite the fuel and make the fuel burn.

[0020] Oxygen enters the oxygen chamber 9 through the oxygen pipe 6, and then enters the outer cover 5 through the gap between the outer wall of the fixed plate 4 and the inner wall of the outer cover 5. The fuel of the biomass gasification furnace enters the outer cover 5 through the main pipe 7, and the fuel mixes with oxygen in the outer cover 5.

[0021] Oxygen pipe 6 is fixedly connected to outer cover 5 and communicates with oxygen chamber 9. Fixing holes 3 are provided on fixing plate 4, communicating with oxygen chamber 9. Multiple fixing holes 3 are provided on fixing plate 4. Through fixing holes 3, oxygen in oxygen chamber 9 can enter outer cover 5 and mix with fuel.

[0022] The fixing hole 3 is inclined on the fixing plate 4, and the fixing hole 3 is inclined towards the main pipe 7. With the fixing hole 3 inclined, the oxygen entering the outer cover 5 from the fixing hole 3 is closer to the center of the main pipe 7, which can better mix with the fuel in the main pipe 7, making the oxygen and fuel mixture more uniform, thus making the fuel burn more completely. The fully burned fuel can reduce the production of soot.

[0023] The fixed plate 4 has multiple auxiliary holes 2. Multiple fixed holes 3 are located between the auxiliary holes 2 and the main pipe 7. The diameter of the auxiliary holes 2 is larger than the diameter of the fixed holes 3. By setting the auxiliary holes 2, the speed at which oxygen enters the outer casing 5 can be increased, thereby improving the mixing speed of oxygen and fuel.

[0024] The assist hole 2 is inclined on the fixed plate 4, facing the main pipe 7. Oxygen entering the outer cover 5 through the assist hole 2 is better directed towards the center of the main pipe 7 due to the inclination of the assist hole 2, thus better mixing with the fuel at the center of the outer cover 5 and further improving the uniformity of oxygen-fuel mixing. Reinforcing ribs 8 are fixedly connected to the outer cover 5. Multiple reinforcing ribs 8 are provided on the outer cover 5 and fixedly connected to the main pipe 7. The reinforcing ribs 8 enhance the connection stability between the outer cover 5 and the main pipe 7.

[0025] The implementation principle of this embodiment is as follows: During use, the fuel of the biomass gasification furnace enters the outer casing 5 through the main pipe 7, and the oxygen enters the outer casing 5 through the oxygen pipe 6, oxygen chamber 9, fixing hole 3, and auxiliary hole 2. The oxygen and fuel are mixed in the outer casing 5. Because the auxiliary hole 2 and fixing hole 3 are inclined and tilted towards the main pipe 7, the oxygen enters the outer casing 5 and converges towards the main pipe 7. The oxygen can be better mixed with the fuel in the center of the main pipe 7. At the same time, the oxygen can also enter the outer casing 5 from the gap between the outer wall of the fixing plate 4 and the inner wall of the outer casing 5 and mix with the fuel in the outer casing 5. Under the combined action of the fixing hole 3, auxiliary hole 2, and the gap between the outer wall of the fixing plate 4 and the inner wall of the outer casing 5, the mixing of oxygen and fuel is more uniform. At this time, the fuel is ignited by the ignition needle 1, and the fuel combustion is more complete. The fully burned fuel is less likely to produce char smoke, thus achieving the effect of more uniform mixing of oxygen and fuel in the combustion nozzle and more complete combustion of fuel.

[0026] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biomass gasifier combustion torch comprising a main pipe (7) of the combustion torch, a casing (5) and an oxygen pipe (6), characterized in that: The outer cover (5) is fixedly installed on the main pipe (7). One end of the main pipe (7) is located in the outer cover (5). A fixing plate (4) is fixedly connected to the main pipe (7). The fixing plate (4) is located in the outer cover (5). There is a certain gap between the outer side wall of the fixing plate (4) and the inner side wall of the outer cover (5). An oxygen chamber (9) is formed between the fixing plate (4), the main pipe (7) and the outer cover (5). The oxygen pipe (6) is fixedly connected to the outer cover (5). The oxygen pipe (6) communicates with the oxygen chamber (9). A fixing hole (3) is opened on the fixing plate (4). The fixing hole (3) communicates with the oxygen chamber (9). Multiple fixing holes (3) are provided on the fixing plate (4). The fixing holes (3) are inclined on the fixing plate (4) and inclined towards the main pipe (7).

2. A biomass gasifier burner according to claim 1, characterized in that: An assisting hole (2) is provided on the fixing hole (3). Multiple assisting holes (2) are provided on the fixing plate (4). Multiple fixing holes (3) are located between multiple assisting holes (2) and the main pipe (7). The diameter of the assisting hole (2) is larger than the diameter of the fixing hole (3).

3. A biomass gasifier burner according to claim 2, wherein: The assist hole (2) is inclined on the fixed plate (4) and the assist hole (2) is inclined toward the main pipe (7).

4. The combustion burner for a biomass gasifier according to claim 1, wherein: The outer cover (5) has an installation hole, and an ignition needle (1) is fixedly installed in the installation hole. The ignition head of the ignition needle (1) is located in the outer cover (5), and the ignition head of the ignition needle (1) abuts against the side of the fixing plate (4) near the main pipe (7).

5. The combustion burner for a biomass gasifier according to claim 1, wherein: A reinforcing rib (8) is fixedly connected to the outer cover (5). Multiple reinforcing ribs (8) are provided on the outer cover (5). The reinforcing ribs (8) are fixedly connected to the main pipe (7).

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