A vertical four-corner tangential air distribution device for a biomass boiler
By introducing a dust prevention mechanism and a flow guiding component into the vertical four-corner tangential air distribution device, the problem of poor airflow caused by dust accumulation is solved, achieving efficient dust prevention and uniform airflow, thereby improving the combustion efficiency and service life of the biomass boiler.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU HUIDI NEW ENERGY TECH CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-14
AI Technical Summary
Existing vertical four-corner tangential air distribution devices are prone to dust accumulation during use, which leads to poor airflow, affects the air distribution effect, and increases maintenance difficulty and cost.
A dustproof mechanism was designed, comprising an air outlet duct, a fan, an impeller, a connecting column, a cleaning brush, a fixing groove, a fixing ring, a dustproof net, and screws. The centrifugal force generated by the rotation of the impeller drives the cleaning brush to clean the dustproof net. Combined with the cooperation of the fixing groove and the fixing ring, the dustproof net can be stably installed and removed, ensuring ventilation effect. At the same time, the flow guiding component, through the setting of the flow guiding blades and flange ring, ensures that the airflow enters the boiler interior evenly and stably.
It effectively avoids dust accumulation, improves ventilation and dust prevention, simplifies the installation and disassembly process of the dust screen, enhances the reliability and durability of the device, and improves combustion and thermal efficiency.
Smart Images

Figure CN224498482U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of biomass boilers, and in particular to a vertical four-corner tangential air distribution device for biomass boilers. Background Technology
[0002] A biomass boiler is a device that uses biomass energy to generate heat through combustion. Biomass energy, such as wood, agricultural waste, and municipal solid waste, is a renewable resource with environmentally friendly and low-carbon characteristics. Biomass boilers convert this biomass energy into heat energy through specific combustion methods for heating, power generation, or other industrial applications. Compared to traditional fossil fuel boilers, biomass boilers offer higher environmental friendliness and sustainability. To improve the boiler's lifespan and combustion efficiency, a vertical, tangentially rounded air distribution device is specifically needed for biomass boilers.
[0003] Because of the existing vertical four-corner tangential air distribution devices, most of the traditional vertical four-corner tangential air distribution devices tend to accumulate dust inside the fan during long-term use, which leads to poor airflow and affects the air distribution effect. In addition, the dust screen needs to be manually cleaned, which increases the difficulty of operation and maintenance costs. Utility Model Content
[0004] The purpose of this invention is to provide a vertical four-corner tangential air distribution device for biomass boilers to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a vertical four-corner tangential air distribution device for a biomass boiler, comprising a biomass boiler body, wherein a dustproof mechanism is provided on the outer surface of the biomass boiler body, and a flow guiding component is provided on the inner surface of the biomass boiler body.
[0006] The dustproof mechanism includes an air outlet pipe, a fan, an impeller, a connecting column, a cleaning brush, a fixing groove, a fixing ring, a dustproof net, mounting holes, and screws. The air outlet pipe is connected to the outer surface of the biomass boiler body. A fan is fixedly connected to one end of the air outlet pipe. An impeller is installed on the inner surface of the fan. A connecting column is fixedly connected to the outer surface of the impeller. A cleaning brush is fixedly connected to the outer surface of the connecting column. A fixing groove is formed on the outer surface of the fan. A fixing ring is installed on the inner surface of the fixing groove. A dustproof net is fixedly connected to the inner surface of the fixing ring. Mounting holes are formed on the outer surface of the dustproof net. Screws are installed on the outer surface of the fixing ring.
[0007] Preferably, the flow guiding assembly includes a connecting pipe, a flow guiding pipe, flow guiding blades, a flange ring, a first bolt, and a second bolt. The connecting pipe is connected to the outer surface of the biomass boiler body, and the flow guiding pipe is connected to one end of the connecting pipe. The flow guiding blades are fixedly connected to the inner surface of the flow guiding pipe, and the flange ring is fixedly connected to the outer surface of the flow guiding pipe. The first bolt is installed on the outer surface of the flange ring, and the second bolt is installed on the outer surface of the flange ring.
[0008] Preferably, the biomass boiler body includes a boiler and an air distribution box, and the air distribution box is provided on the outer surface of the boiler.
[0009] Preferably, the impeller and the connecting column form a rotating structure, and the inner surface of the fixing groove matches the outer surface of the fixing ring.
[0010] Preferably, the outer surface of the connecting post matches the outer surface of the mounting hole, and the connecting post passes through the mounting hole and connects to the impeller.
[0011] Preferably, screws are evenly spaced on the outer surface of the fixing ring, and the screws pass through the fixing ring and connect to the fan.
[0012] Preferably, the first bolt passes through the flange ring and is connected to the connecting pipe, and the second bolt passes through the flange ring and is connected to the air outlet pipe.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This vertical four-corner tangential air distribution device for biomass boilers, through the arrangement of air outlet pipe, fan, impeller, connecting column, cleaning brush, fixing groove, fixing ring, dustproof net, mounting hole and screws, allows for efficient operation. When the fan is started, the impeller guides the airflow. The rotation of the impeller generates a strong centrifugal force, drawing in and accelerating the air. Simultaneously, it drives the cleaning brush on the connecting column to rotate. The cleaning brush contacts the dustproof net, brushing off the dust and preventing dust accumulation from affecting the ventilation effect. The cooperation between the fixing groove and the fixing ring makes the installation and removal of the dustproof net simple and convenient. The fixing through the mounting hole and screws ensures the stability of the dustproof net and improves the dustproof effect. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;
[0015] Figure 2 This is a schematic diagram of the dustproof mechanism of this utility model;
[0016] Figure 3 This is a schematic diagram of the disassembled structure of the dustproof mechanism of this utility model;
[0017] Figure 4 This is a schematic diagram of the flow guiding component of this utility model.
[0018] In the diagram: 1. Biomass boiler body; 11. Boiler; 12. Air distribution box; 2. Dust prevention mechanism; 21. Air outlet pipe; 22. Fan; 23. Impeller; 24. Connecting column; 25. Cleaning brush; 26. Fixing groove; 27. Fixing ring; 28. Dustproof net; 29. Mounting hole; 210. Screw; 3. Flow guide assembly; 31. Connecting pipe; 32. Flow guide pipe; 33. Flow guide blade; 34. Flange ring; 35. First bolt; 36. Second bolt. Detailed Implementation
[0019] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-4 This utility model provides a technical solution: a vertical four-corner tangential air distribution device for a biomass boiler, including a biomass boiler body 1, a dustproof mechanism 2 provided on the outer surface of the biomass boiler body 1, and a flow guiding component 3 provided on the inner surface of the biomass boiler body 1.
[0021] The dust control mechanism 2 includes an air outlet pipe 21, a fan 22, an impeller 23, a connecting column 24, a cleaning brush 25, a fixing groove 26, a fixing ring 27, a dustproof net 28, mounting holes 29, and screws 210. The air outlet pipe 21 is connected to the outer surface of the biomass boiler body 1. One end of the air outlet pipe 21 is fixedly connected to the fan 22. An impeller 23 is mounted on the inner surface of the fan 22. A connecting column 24 is fixedly connected to the outer surface of the impeller 23. A cleaning brush 25 is fixedly connected to the outer surface of the connecting column 24. A fixing groove 26 is formed on the outer surface of the fan 22. A fixing ring 27 is mounted on the inner surface of the fixing groove 26. A dustproof net 28 is fixedly connected to the inner surface of the fixing ring 27. Mounting holes 29 are formed on the outer surface of the dustproof net 28. A fixing ring 25 is mounted on the outer surface of the fixing ring 27. Equipped with screws 210, the system comprises an air outlet duct 21, a fan 22, an impeller 23, a connecting column 24, a cleaning brush 25, a fixing groove 26, a fixing ring 27, a dustproof net 28, mounting holes 29, and screws 210. In use, starting the fan 22 guides the airflow through the impeller 23. The rotation of the impeller 23 generates a strong centrifugal force, drawing in and accelerating the air. Simultaneously, it drives the cleaning brush 25 on the connecting column 24 to rotate. The cleaning brush 25 contacts the dustproof net 28, brushing off the dust and preventing dust accumulation from affecting ventilation. The cooperation between the fixing groove 26 and the fixing ring 27 makes the installation and removal of the dustproof net 28 simple and convenient. The fixing through the mounting holes 29 and screws 210 ensures the stability of the dustproof net 28 and improves its dustproof effect.
[0022] Furthermore, the flow guiding assembly 3 includes a connecting pipe 31, a flow guiding pipe 32, a flow guiding vane 33, a flange ring 34, a first bolt 35, and a second bolt 36. The connecting pipe 31 is connected to the outer surface of the biomass boiler body 1. One end of the connecting pipe 31 is connected to the flow guiding pipe 32. The flow guiding vane 33 is fixedly connected to the inner surface of the flow guiding pipe 32. The flange ring 34 is fixedly connected to the outer surface of the flow guiding pipe 32. The first bolt 35 and the second bolt 36 are installed on the outer surface of the flange ring 34. Through the arrangement of the connecting pipe 31, the flow guiding pipe 32, the flow guiding vane 33, the flange ring 34, the first bolt 35, and the second bolt 36, during use, air enters the outlet pipe 21 through the fan 22. After being guided by the outlet pipe 21, the air... Gas enters the guide pipe 32. Inside the guide pipe 32, the guide vanes 33 effectively change the direction of airflow, allowing the airflow to enter the biomass boiler body 1 evenly and stably, thus improving combustion efficiency. At the same time, the flange ring 34 connected to the outer surface of the guide pipe 32, fixed by the first bolt 35 and the second bolt 36, ensures a tight connection between the guide pipe 32 and the biomass boiler body 1 or other connecting parts, preventing air leakage. In addition, the design of the guide vanes 33 not only changes the direction of airflow but also increases airflow disturbance, further promoting uniform air distribution, reducing dead zones in the combustion process, and enabling biomass fuel to burn more completely, thus improving combustion efficiency and thermal efficiency.
[0023] Furthermore, the main body 1 of the biomass boiler includes a boiler 11 and an air distribution box 12, with the air distribution box 12 provided on the outer surface of the boiler 11.
[0024] Furthermore, the impeller 23 and the connecting column 24 form a rotating structure, and the inner surface of the fixing groove 26 matches the outer surface of the fixing ring 27. Through the setting of the impeller 23, the connecting column 24 and the cleaning brush 25 on it can be driven to rotate together under the drive of the fan 22. This design not only realizes the intake and acceleration of air, but also combines the cleaning function, effectively maintaining the cleanliness of the dustproof net 28 and extending the service life of the device. At the same time, the precise fit between the fixing groove 26 and the fixing ring 27, as well as the firm installation through the mounting hole 29 and the screw 210, ensure that the dustproof net 28 can remain stable and not fall off when subjected to the impact of high-speed airflow, further enhancing the reliability and durability of the device.
[0025] Furthermore, the outer surface of the connecting post 24 matches the outer surface of the mounting hole 29. The connecting post 24 passes through the mounting hole 29 and connects to the impeller 23. Through the setting of the connecting post 24, an effective connection between the cleaning brush 25 and the dust screen 28 is achieved. At the same time, the design of the connecting post 24 passing through the mounting hole 29 not only ensures that the cleaning brush 25 can rotate with the rotation of the impeller 23 to clean the dust screen 28, but also ensures the stability of the cleaning brush 25 during the cleaning process, avoiding poor cleaning effect or damage to the dust screen 28 due to shaking.
[0026] Furthermore, screws 210 are evenly distributed on the outer surface of the fixing ring 27. The screws 210 pass through the fixing ring 27 and connect to the fan 22. Through the setting of the fixing ring 27 and the even distribution and stable connection of the screws 210, the dustproof net 28 is firmly installed on the fan 22. In addition, the use of screws 210 makes the replacement and maintenance of the dustproof net 28 simple and quick. The dustproof net 28 can be easily removed for cleaning or replacement simply by loosening the screws 210, which greatly improves the ease of use and maintainability of the device.
[0027] Furthermore, the first bolt 35 passes through the flange ring 34 and connects to the connecting pipe 31, and the second bolt 36 passes through the flange ring 34 and connects to the air outlet pipe 21. The setting of the first bolt 35 achieves a tight connection between the guide pipe 32 and the connecting pipe 31, ensuring smooth airflow and avoiding air leakage caused by loose connection. At the same time, the setting of the second bolt 36 achieves a stable connection between the guide pipe 32 and the air outlet pipe 21, further enhancing the stability and reliability of the entire air distribution device.
[0028] Working Principle: In actual operation, when the fan 22 is started, the impeller 23 guides the airflow. The rotation of the impeller 23 generates a strong centrifugal force, drawing in and accelerating the air. Simultaneously, it drives the cleaning brush 25 on the connecting column 24 to rotate. The cleaning brush 25 contacts the dust filter 28, brushing off the dust and preventing dust accumulation from affecting ventilation. The cooperation between the fixing groove 26 and the fixing ring 27 makes the installation and removal of the dust filter 28 simple and convenient. The fixing through the mounting hole 29 and screws 210 ensures the stability of the dust filter 28 and improves the dustproof effect. Through the setting of the air guide component 3, during use, air enters the outlet duct 21 through the fan 22, and after being guided by the outlet duct 21, the air enters the guide pipe 32. Inside the guide pipe 32, the guide vanes 33 effectively change the direction of airflow, allowing the airflow to enter the biomass boiler body 1 evenly and stably, thus improving combustion efficiency. At the same time, the flange ring 34 connected to the outer surface of the guide pipe 32, fixed by the first bolt 35 and the second bolt 36, ensures a tight connection between the guide pipe 32 and the biomass boiler body 1 or other connecting parts, preventing air leakage. In addition, the design of the guide vanes 33 not only changes the direction of airflow but also increases airflow disturbance, further promoting uniform air distribution, reducing dead zones in the combustion process, and enabling biomass fuel to burn more completely, thus improving combustion efficiency and thermal efficiency.
[0029] 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 vertical tangential air distribution device for a biomass boiler, comprising a biomass boiler body (1), characterized in that: The outer surface of the biomass boiler body (1) is provided with a dustproof mechanism (2), and the inner surface of the biomass boiler body (1) is provided with a flow guiding component (3). The dustproof mechanism (2) includes an air outlet pipe (21), a fan (22), an impeller (23), a connecting column (24), a cleaning brush (25), a fixing groove (26), a fixing ring (27), a dustproof net (28), a mounting hole (29), and screws (210). The outer surface of the biomass boiler body (1) is connected to the air outlet pipe (21), and one end of the air outlet pipe (21) is fixedly connected to the fan (22). An impeller (23) is installed on the inner surface of the fan (22). A connecting column (24) is fixedly connected to the outer surface of the fan (22), a cleaning brush (25) is fixedly connected to the outer surface of the connecting column (24), a fixing groove (26) is opened on the outer surface of the fan (22), a fixing ring (27) is installed on the inner surface of the fixing groove (26), a dustproof net (28) is fixedly connected to the inner surface of the fixing ring (27), an installation hole (29) is opened on the outer surface of the dustproof net (28), and a screw (210) is installed on the outer surface of the fixing ring (27).
2. A vertical four-corner tangential air distribution device for a biomass boiler according to claim 1, characterized in that: The flow guiding assembly (3) includes a connecting pipe (31), a flow guiding pipe (32), a flow guiding blade (33), a flange ring (34), a first bolt (35), and a second bolt (36). The connecting pipe (31) is connected to the outer surface of the biomass boiler body (1). One end of the connecting pipe (31) is connected to the flow guiding pipe (32). The flow guiding blade (33) is fixedly connected to the inner surface of the flow guiding pipe (32). The flange ring (34) is fixedly connected to the outer surface of the flow guiding pipe (32). The first bolt (35) is installed on the outer surface of the flange ring (34), and the second bolt (36) is installed on the outer surface of the flange ring (34).
3. A vertical four-corner tangential air distribution device for a biomass boiler according to claim 1, characterized in that: The biomass boiler body (1) includes a boiler (11) and an air distribution box (12), and the air distribution box (12) is provided on the outer surface of the boiler (11).
4. A vertical four-corner tangential air distribution device for a biomass boiler according to claim 1, characterized in that: The impeller (23) and the connecting column (24) form a rotating structure, and the inner surface of the fixing groove (26) matches the outer surface of the fixing ring (27).
5. A vertical four-corner tangential air distribution device for a biomass boiler according to claim 1, characterized in that: The outer surface of the connecting post (24) matches the outer surface of the mounting hole (29), and the connecting post (24) passes through the mounting hole (29) and is connected to the impeller (23).
6. A vertical four-corner tangential air distribution device for a biomass boiler according to claim 1, characterized in that: The outer surface of the fixing ring (27) is provided with screws (210) at equal intervals, and the screws (210) pass through the fixing ring (27) and are connected to the fan (22).
7. A vertical four-corner tangential air distribution device for a biomass boiler according to claim 2, characterized in that: The first bolt (35) passes through the flange ring (34) and is connected to the connecting pipe (31), and the second bolt (36) passes through the flange ring (34) and is connected to the air outlet pipe (21).