Combustion-supporting device for biomass pellet boiler

Abstract

The utility model discloses a kind of biomass pellet boiler combustion-supporting devices, including fan, the fan is provided with air outlet pipe, one end of the air outlet pipe is movably connected with pipe shell, the inside of the pipe shell is provided with spiral channel, the inside of the pipe shell is provided with through-hole, the one end of the pipe shell away from air outlet pipe is fixedly connected with connecting pipe, the inside of the connecting pipe is provided with spoiler, fan starts to produce airflow, into pipe shell through air outlet pipe, form spiral flow under the action of spiral channel, part of airflow of air outlet pipe enters through through-hole, airflow enters connecting pipe, further turbulence through spoiler, finally from the other end of connecting pipe into the combustion chamber of biomass pellet boiler, and biomass particle is fully contacted, mixed, improve combustion sufficiency, spoiler reduces the pressure loss of airflow while guaranteeing turbulence effect, device structure is simple, dismounting and maintenance are convenient, and practicality is strong.

Description

Technical Field

[0001] This utility model belongs to the field of boiler combustion technology, and in particular relates to a biomass pellet boiler combustion aid device. Background Technology

[0002] Biomass pellet boilers use biomass pellets as fuel and have the advantages of being environmentally friendly and energy-saving.

[0003] However, if the distribution of combustion air is uneven or the airflow is monotonous during combustion, it can lead to incomplete combustion of biomass pellets, resulting in energy waste and increased pollutant emissions. Therefore, a combustion-supporting device that can optimize the combustion airflow and improve combustion efficiency is needed. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a biomass pellet boiler combustion aid device. The blower generates airflow, which enters the shell through the outlet pipe and forms a spiral flow under the action of the spiral channel. A portion of the airflow enters through the through-hole in the outlet pipe and then enters the connecting pipe. The airflow is further turbulent by the baffle plate and finally enters the combustion chamber of the biomass pellet boiler from the other end of the connecting pipe, ensuring full contact and mixing with the biomass pellets and improving combustion completeness. The baffle plate reduces airflow pressure loss while ensuring the turbulence effect. The device has a simple structure, is easy to disassemble and maintain, and is highly practical.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a biomass pellet boiler combustion aid device, including a blower, an air outlet pipe provided on the blower, a pipe shell movably connected to one end of the air outlet pipe, a spiral channel opened inside the pipe shell, a through hole opened inside the pipe shell, a connecting pipe fixedly connected to the end of the pipe shell away from the air outlet pipe, and a baffle plate provided inside the connecting pipe.

[0006] Furthermore, the spiral channel extends spirally along the axial direction of the tube shell, and the edge of the baffle is fixedly connected to the inner wall of the connecting tube.

[0007] Furthermore, the through hole is located at the exact center of the casing.

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] When the fan starts, it generates airflow, which enters the shell through the outlet pipe and forms a spiral flow under the action of the spiral channel. Part of the airflow enters through the through hole in the outlet pipe and enters the connecting pipe. The airflow is further turbulent by the baffle plate and finally enters the combustion chamber of the biomass pellet boiler from the other end of the connecting pipe. It fully contacts and mixes with the biomass pellets, improving the completeness of combustion. The baffle plate reduces the pressure loss of the airflow while ensuring the turbulence effect. The device has a simple structure, is easy to disassemble and maintain, and is highly practical. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0012] In the diagram: 1. Fan; 2. Air outlet duct; 3. Pipe shell; 4. Connecting pipe; 5. Spiral channel; 6. Through hole; 7. Baffle plate. Detailed Implementation

[0013] 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, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0014] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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. Example

[0015] See appendix Figure 1-2 As shown, a biomass pellet boiler combustion aid device includes a blower 1, an air outlet pipe 2 is provided on the blower 1, a pipe shell 3 is movably connected to one end of the air outlet pipe 2, a spiral channel 5 is opened inside the pipe shell 3, a through hole 6 is opened inside the pipe shell 3, and a connecting pipe 4 is fixedly connected to the end of the pipe shell 3 away from the air outlet pipe 2, and a baffle 7 is provided inside the connecting pipe 4.

[0016] The spiral channel 5 extends spirally along the axial direction of the shell 3, and the edge of the baffle 7 is fixedly connected to the inner wall of the connecting pipe 4.

[0017] The through hole 6 is located at the exact center of the shell 3.

[0018] Working principle: During use, the connecting pipe 4 needs to be flanged to the biomass pellet boiler body. When the blower 1 is started, airflow is generated and enters the shell 3 through the air outlet pipe 2. Under the action of the spiral channel 5, a spiral flow is formed. Part of the airflow in the air outlet pipe 2 enters through the through hole 6 and enters the connecting pipe 4. The airflow is further turbulent by the baffle 7 and finally enters the combustion chamber of the biomass pellet boiler from the other end of the connecting pipe 4. It fully contacts and mixes with the biomass pellets to improve the combustion completeness. The baffle 7 reduces the pressure loss of the airflow while ensuring the turbulence effect. The device has a simple structure, is easy to disassemble and maintain, and is highly practical.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0020] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A biomass pellet boiler combustion-supporting device comprising a fan (1), characterized in that: The fan (1) is provided with an air outlet pipe (2), one end of which is movably connected to a pipe shell (3). The pipe shell (3) has a spiral channel (5) inside and a through hole (6) inside. The end of the pipe shell (3) away from the air outlet pipe (2) is fixedly connected to a connecting pipe (4), and a baffle plate (7) is provided inside the connecting pipe (4).

2. The biomass pellet boiler combustion aid device according to claim 1, characterized in that: The spiral channel (5) extends spirally along the axial direction of the shell (3), and the edge of the baffle (7) is fixedly connected to the inner wall of the connecting pipe (4).

3. The biomass pellet boiler combustion aid device according to claim 1, characterized in that: The through hole (6) is located at the center of the shell (3).

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