Biomass gasifier air inlet device convenient for air control

By using a coordinated design for the main and auxiliary air paths, the problem of uneven airflow distribution in the air intake device of traditional biomass gasifiers has been solved, achieving precise airflow adjustment and improved gasification efficiency.

CN224186117UActive Publication Date: 2026-05-01SICHUAN DAOLUO BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN DAOLUO BIOTECHNOLOGY CO LTD
Filing Date
2025-09-19
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional biomass gasifiers cannot achieve continuous and precise air intake adjustment, resulting in uneven airflow distribution inside the furnace, forming local high or low temperature zones, which affects gasification efficiency.

Method used

It adopts a main and auxiliary airflow coordinated adjustment design, and controls the airflow through a motor-driven transmission component and hydraulic system to achieve uniform airflow and flexible adjustment to adapt to the characteristics of different combustibles.

Benefits of technology

It achieves uniform airflow distribution and precise air volume adjustment, improves ease of operation and gasification efficiency, and has a simple structure that is easy to maintain.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of biomass gasification furnaces, and discloses a biomass gasification furnace air inlet device convenient for air control, which comprises a furnace body, the top of the furnace body is fixedly connected with a feed pipe, the top of the right side of the furnace body is fixedly connected with an exhaust pipe, and the bottom side of the furnace body is fixedly connected with an air inlet pipe. A plurality of air supply pipes are fixedly connected to the top of the air inlet pipe, a motor is installed on the outer wall of the air inlet pipe through a fixing support and connected with a baffle piece through a transmission assembly, an annular pipe is arranged on the outer wall of the bottom of the furnace body, a hydraulic oil tank is fixedly connected to the outer wall of the top of the annular pipe, and an air cylinder is arranged on the top of the hydraulic oil tank. The inner wall of the annular pipe is connected with the furnace body through a plurality of adjusting assemblies. According to the utility model, the device adopts the design of cooperative adjustment of the main and auxiliary air paths, so that uniform air supply can be realized, reasonable airflow distribution can be ensured, the air volume can be flexibly regulated and controlled, meanwhile, the air volume can be automatically adapted and regulated according to the characteristics of common incinerated materials, and the operation convenience and the gasification efficiency are improved.
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Description

An air inlet device for a biomass gasification furnace that facilitates air control. Technical Field

[0001] This utility model relates to the field of biomass gasification furnace technology, and in particular to an air inlet device for a biomass gasification furnace that facilitates air control. Background Technology

[0002] The combustible gas produced by biomass gasification furnaces is a green new energy source. Because the raw materials for biogas production are crop straw, forest waste, edible mushroom residue, livestock manure, and all combustible materials, it is an inexhaustible and renewable resource.

[0003] Traditional air intake devices often use a single damper or simple valve for regulation. Air volume control relies on the operator's experience and cannot achieve continuous and precise adjustment. The single air inlet design leads to uneven airflow distribution inside the furnace, with excessive oxygen in the area near the air inlet and oxygen deficiency in the area away from it, forming local high or low temperature zones. In response to this technical problem, this application proposes an air intake device for a biomass gasification furnace that facilitates air control. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an air intake device for a biomass gasifier that facilitates air control. This air intake device adopts a main and auxiliary air path coordinated adjustment design, which not only achieves uniform air supply and ensures reasonable airflow distribution, but also allows for flexible adjustment of air volume. Furthermore, it can automatically adapt and adjust the air volume according to the characteristics of common incinerators, thereby improving operational convenience and gasification efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An air intake device for a biomass gasification furnace with easy air control includes a furnace body. A feed pipe is fixedly connected to the top of the furnace body, an exhaust pipe is fixedly connected to the top right side of the furnace body, and an air intake pipe is fixedly connected to the bottom side of the furnace body. Multiple air supply pipes are fixedly connected to the top of the air intake pipe. A motor is mounted on the outer wall of the air intake pipe via a fixed bracket. The motor is connected to a baffle plate via a transmission assembly. A ring pipe is provided on the outer wall of the bottom of the furnace body. A hydraulic oil tank is fixedly connected to the top outer wall of the ring pipe. A cylinder is provided on the top of the hydraulic oil tank. The inner wall of the ring pipe is connected to the furnace body via multiple adjustment components.

[0007] Furthermore, the transmission assembly includes a gear one located at the motor drive end, a connecting ring on the outer wall of the gear one, a gear ring fixedly connected to the top of the connecting ring, a gear two meshing with the top of the gear ring, a rotating rod fixedly connected to the inner wall of the gear two, and the outer wall of the rotating rod connected to a baffle plate.

[0008] Furthermore, the outer wall of the connecting ring is provided with a toothed groove, and the outer wall of the toothed groove is meshed with a gear.

[0009] Furthermore, a fixing block is provided on the inner wall of the air inlet pipe, and the end of the rotating rod is rotatably connected to the fixing block.

[0010] Furthermore, the adjusting assembly includes a connecting pipe fixedly connected to the inner wall of the ring pipe, the outer wall of the connecting pipe being connected to the furnace body, a gas nozzle fixedly connected to one end of the connecting pipe, an oil pipe fixedly connected to the other end of the connecting pipe, a piston block slidably connected to the inner wall of the connecting pipe, a bottom side of one end of the connecting pipe being fixedly connected to the output end of the gas supply pipe, a locking block fixedly connected to the outer wall of the piston block, and a spring provided on the outer wall of the locking block.

[0011] Furthermore, the outer wall of the locking block is slidably connected to the connecting pipe, one end of the spring is connected to the connecting pipe, and the other end of the spring is connected to the locking block.

[0012] Furthermore, the outer wall of the cylinder is mounted on the outer wall of the furnace body via a fixed bracket, and the cylinder drive end is connected to a hydraulic oil tank.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the air inlet device adopts a main and auxiliary air path coordinated adjustment design. The main air path can adjust the air volume, and the auxiliary air path can deliver air evenly, thereby achieving uniform air delivery, ensuring reasonable airflow distribution, and flexibly controlling the air volume.

[0015] 2. In this utility model, the air intake device can automatically adapt and adjust the air volume according to the characteristics of common incinerators through the design of automatically adjusting the air volume, thereby improving the ease of operation and gasification efficiency. At the same time, the structure is simple and easy to maintain. Attached Figure Description

[0016] Figure 1 is a perspective view of an air inlet device for a biomass gasification furnace that facilitates air control, as proposed in this utility model.

[0017] Figure 2 is a structural diagram of an air inlet device for a biomass gasification furnace that facilitates air control, as proposed in this utility model.

[0018] Figure 3 is a structural diagram of the transmission component of the air inlet device for a biomass gasification furnace that facilitates air control, as proposed in this utility model.

[0019] Figure 4 is a structural diagram of the regulating component of the air inlet device for a biomass gasifier that facilitates air control, as proposed in this utility model.

[0020] Legend:

[0021] 1. Furnace body; 2. Feed pipe; 3. Exhaust pipe; 4. Air inlet pipe; 5. Ring pipe; 6. Cylinder; 7. Hydraulic oil tank; 8. Connecting pipe; 9. Air supply pipe; 10. Air nozzle; 11. Piston block; 12. Clamping block; 13. Spring; 14. Oil pipe; 15. Motor; 16. Connecting ring; 17. Gear one; 18. Gear ring; 19. Gear groove; 20. Rotating rod; 21. Baffle plate; 22. Gear two; 23. Fixing block. Detailed Implementation

[0022] 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.

[0023] Referring to Figures 1 and 2, one embodiment of this utility model is provided: an air intake device for a biomass gasification furnace that facilitates air control, comprising a furnace body 1, a feed pipe 2 fixedly connected to the top of the furnace body 1, an exhaust pipe 3 fixedly connected to the top right side of the furnace body 1, an air intake pipe 4 fixedly connected to the bottom side of the furnace body 1, multiple air supply pipes 9 fixedly connected to the top of the air intake pipe 4, a motor 15 mounted on the outer wall of the air intake pipe 4 via a fixed bracket, the motor 15 being connected to a baffle plate 21 via a transmission assembly, a ring pipe 5 provided on the bottom outer wall of the furnace body 1, a hydraulic oil tank 7 fixedly connected to the top outer wall of the ring pipe 5, a cylinder 6 provided on the top of the hydraulic oil tank 7, and the inner wall of the ring pipe 5 being connected to the furnace body 1 via multiple adjustment components.

[0024] Specifically, the material enters through the feed pipe 2 at the top of the furnace body 1. Then, the blower sends air into the furnace body 1 through the air inlet pipe 4. The motor 15 adjusts the baffle plate 21 through the transmission component to control the air volume. Then, the air is evenly fed into the furnace body 1 through the air delivery pipe 9 at the top of the air inlet pipe 4 by the adjustment component. The piston at the drive end of the cylinder 6 squeezes the hydraulic oil in the oil chamber of the hydraulic oil tank 7 into the ring pipe 5. The fine air intake of the adjustment component is adjusted. Then, the material will start to burn in the furnace body 1, and the exhaust gas will be discharged from the exhaust pipe 3.

[0025] Referring to Figures 2-4, the transmission assembly includes a gear 17 located at the drive end of the motor 15. A connecting ring 16 is provided on the outer wall of the gear 17. A gear ring 18 is fixedly connected to the top of the connecting ring 16. A gear 22 is meshed with the top of the gear ring 18. A rotating rod 20 is fixedly connected to the inner wall of the gear 22. The outer wall of the rotating rod 20 is connected to a baffle plate 21. A toothed groove 19 is formed on the outer wall of the connecting ring 16, and the outer wall of the toothed groove 19 meshes with the gear 17. A fixing block 2 is provided on the inner wall of the air inlet pipe 4. 3. The end of the rotating rod 20 is rotatably connected to the fixed block 23. The motor 15 drives the gear 17 to rotate, which in turn drives the connecting ring 16 of the starting tooth groove 19 to rotate on the outer wall of the air inlet pipe 4. Then the connecting ring 16 drives the top gear ring 18 to rotate. The gear ring 18 drives multiple gears 22 to rotate, which in turn drives the rotating rod 20 to rotate. The rotating rod 20 rotates on the inner wall of the air inlet pipe 4 and the fixed block 23, and at the same time drives the baffle plate 21 fixedly connected to the outer wall to rotate, thereby adjusting the amount of air intake.

[0026] The regulating assembly includes a connecting pipe 8 fixedly connected to the inner wall of the ring pipe 5, the outer wall of the connecting pipe 8 being connected to the furnace body 1, a gas nozzle 10 fixedly connected to one end of the connecting pipe 8, an oil pipe 14 fixedly connected to the other end of the connecting pipe 8, a piston block 11 slidably connected to the inner wall of the connecting pipe 8, a bottom side of one end of the connecting pipe 8 fixedly connected to the output end of the gas supply pipe 9, a locking block 12 fixedly connected to the outer wall of the piston block 11, a spring 13 provided on the outer wall of the locking block 12, the outer wall of the locking block 12 slidably connected to the connecting pipe 8, and one end of the spring 13 connected to the connecting pipe 8. Connected to pipe 8, the other end of spring 13 is connected to block 12. Hydraulic oil enters from oil pipe 14, pushing piston block 11 to move. Air enters from air supply pipe 9 into the air chamber at the end of connecting pipe 8, and enters furnace body 1 from air nozzle 10. The position of piston block 11 in the air chamber affects the air volume. When air nozzle 10 is completely blocked by piston block 11, air supply will stop, cylinder 6 will stop driving, and when hydraulic oil returns to hydraulic oil tank 7, spring 13 pushes block 12 to drive piston block 11 to retract, thereby activating the maximum air intake volume.

[0027] The outer wall of cylinder 6 is mounted on the outer wall of furnace body 1 by a fixed bracket. The driving end of cylinder 6 is connected to hydraulic oil tank 7. Cylinder 6 will push the hydraulic oil in hydraulic oil tank 7 into ring pipe 5 and thus into the oil pipe 14 of multiple connecting pipes 8.

[0028] Working principle: Material enters through the feed pipe 2 at the top of the furnace body 1. Then, a blower sends air into the furnace body 1 through the air inlet pipe 4. Motor 15 drives gear 17 to rotate, which in turn drives the connecting ring 16 of the gear groove 19 to rotate on the outer wall of the air inlet pipe 4. The connecting ring 16 then drives the top gear ring 18 to rotate, which in turn drives multiple gears 22 to rotate, thereby driving the rotating rod 20 to rotate. The rotating rod 20 rotates on the inner wall of the air inlet pipe 4 and the fixed block 23, simultaneously driving the baffle plate 21 fixedly connected to the outer wall to rotate, thus adjusting... The air intake volume is adjusted, and then the air enters the air chamber at the end of the connecting pipe 8 through the air supply pipe 9 at the top of the air intake pipe 4. The air then enters the furnace body 1 through the air nozzle 10. The piston at the drive end of the cylinder 6 squeezes the hydraulic oil in the oil chamber of the hydraulic oil tank 7 into the ring pipe 5. The ring pipe 5 is equipped with a distributor to ensure that the oil pressure of each connecting pipe is balanced. The hydraulic oil enters the oil pipe 14 from the ring pipe 5, and then pushes the piston block 11 to move, thereby controlling the precise air intake volume. Then the material will start to burn in the furnace body 1, and the exhaust gas will be discharged from the exhaust pipe 3.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A biomass gasifier air inlet device facilitating air control, characterized in that: The furnace includes a furnace body (1), a feed pipe (2) fixedly connected to the top of the furnace body (1), an exhaust pipe (3) fixedly connected to the top right side of the furnace body (1), an air inlet pipe (4) fixedly connected to the bottom side of the furnace body (1), a plurality of air supply pipes (9) fixedly connected to the top of the air inlet pipe (4), a motor (15) mounted on the outer wall of the air inlet pipe (4) via a fixed bracket, the motor (15) being connected to a baffle plate (21) via a transmission assembly, a ring pipe (5) provided on the bottom outer wall of the furnace body (1), a hydraulic oil tank (7) fixedly connected to the top outer wall of the ring pipe (5), a cylinder (6) provided on the top of the hydraulic oil tank (7), and the inner wall of the ring pipe (5) being connected to the furnace body (1) via a plurality of adjustment assemblies.

2. The air inlet device for a biomass gasification furnace with easy air control according to claim 1, characterized in that: The transmission assembly includes a gear one (17) located at the drive end of the motor (15). A connecting ring (16) is provided on the outer wall of the gear one (17). A gear ring (18) is fixedly connected to the top of the connecting ring (16). A gear two (22) is meshed with the top of the gear ring (18). A rotating rod (20) is fixedly connected to the inner wall of the gear two (22). The outer wall of the rotating rod (20) is connected to a baffle plate (21).

3. The air inlet device for a biomass gasification furnace with easy air control according to claim 2, characterized in that: The outer wall of the connecting ring (16) is provided with a toothed groove (19), and the outer wall of the toothed groove (19) is meshed with the gear (17).

4. The air inlet device of the biomass gasification furnace facilitating air control according to claim 2, characterized in that: The inner wall of the air inlet pipe (4) is provided with a fixing block (23), and the end of the rotating rod (20) is rotatably connected to the fixing block (23).

5. The air inlet device of the biomass gasification furnace facilitating air control according to claim 1, characterized in that: The regulating assembly includes a connecting pipe (8) fixedly connected to the inner wall of the ring pipe (5), the outer wall of the connecting pipe (8) being connected to the furnace body (1), a gas nozzle (10) fixedly connected to one end of the connecting pipe (8), an oil pipe (14) fixedly connected to the other end of the connecting pipe (8), a piston block (11) slidably connected to the inner wall of the connecting pipe (8), a bottom side of one end of the connecting pipe (8) being fixedly connected to the output end of the gas supply pipe (9), a locking block (12) fixedly connected to the outer wall of the piston block (11), and a spring (13) provided on the outer wall of the locking block (12).

6. The air inlet device for a biomass gasification furnace with easy air control according to claim 5, characterized in that: The outer wall of the locking block (12) is slidably connected to the connecting pipe (8), one end of the spring (13) is connected to the connecting pipe (8), and the other end of the spring (13) is connected to the locking block (12).

7. The air inlet device of the biomass gasification furnace facilitating air control according to claim 1, characterized in that: The outer wall of the cylinder (6) is mounted on the outer wall of the furnace body (1) by a fixed bracket, and the driving end of the cylinder (6) is connected to the hydraulic oil tank (7).