Biomass boiler air distribution device

Abstract

The utility model is applicable to the technical field of biomass boilers, and discloses a biomass boiler air distribution device which is characterized in that a rotating pipe is vertically and rotatably mounted in the middle of the top of a boiler body through a sealing bearing, support frames are vertically and fixedly mounted on two sides of the top of the boiler body, and a fixed sleeve is fixedly mounted on the surface of the top of each support frame; a conveying pipe is fixedly installed between the inner sides of the two fixing sleeves in a transverse penetrating mode, the top end of the side edge of the conveying pipe fixedly communicates with an air feeding pipe, a driving mechanism is arranged in the conveying pipe, and a transmission mechanism is arranged in the rotating pipe. According to the technical scheme, air can be normally conveyed into the rotating pipe and the exhaust pipe through the connecting straight pipe and the rotating joint, and external air is uniformly conveyed to different positions in the furnace body by combining with the synchronous rotating exhaust groove; and air is conveyed to different positions in the furnace body, so that the contact degree of comburent in the furnace body and oxygen is increased, and the combustion rate of the comburent in the furnace body is increased.

Description

Technical Field

[0001] This utility model applies to the field of biomass boiler technology, and particularly relates to a biomass boiler air distribution device. Background Technology

[0002] Currently, biomass boilers require air distribution equipment to supply air and oxygen during operation, ensuring that the fuel inside the boiler can be fully combusted.

[0003] However, in current methods of supplying external air to the boiler using air distribution ducts, the fixed position of the duct's exhaust port prevents the airflow from being evenly distributed into the biomass boiler. Consequently, the combustion materials in other locations cannot quickly come into contact with the supplied oxygen, significantly impacting the boiler's combustion efficiency. Therefore, we propose an air distribution device for biomass boilers. Utility Model Content

[0004] The main objective of this invention is to provide a biomass boiler air distribution device that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A biomass boiler air distribution device includes a boiler body. A rotating pipe is vertically rotatably installed at the top center of the boiler body via a sealed bearing. Support frames are vertically fixedly installed on both sides of the top of the boiler body. A fixed sleeve is fixedly installed on the top surface of each support frame. A conveying pipe is horizontally fixedly installed between the inner sides of the two sets of fixed sleeves. An air supply pipe is fixedly connected to the top of the side of the conveying pipe.

[0007] The conveying pipe is equipped with a driving mechanism, and the rotating pipe is equipped with a transmission mechanism. The driving mechanism and the transmission mechanism are connected in a transmission manner.

[0008] As an optional solution to the technical solution of this application, a rotary joint is rotatably installed on the top of the rotating pipe via a sealed bearing. A connecting straight pipe is rotatably sleeved on the top of the rotary joint and the top of the connecting straight pipe is fixedly connected to the middle of the bottom of the conveying pipe. A fixed straight pipe is fixedly connected to the bottom of the rotating pipe. An exhaust pipe is fixedly connected to the bottom of the fixed straight pipe. An exhaust groove is opened at the bottom of the exhaust pipe, and the number of exhaust grooves is several sets.

[0009] By adopting the above technical solution, the rotation of the rotary joint and the relative rotation of the connecting straight pipe and the rotary pipe allow air to be normally transported through the connecting straight pipe and the rotary joint to the inside of the rotary pipe and the exhaust pipe. Combined with the synchronous rotation of the exhaust groove, the external air is evenly transported to different positions inside the furnace body. This air transport to different positions inside the furnace body increases the contact between the combustibles and oxygen inside the furnace body, thereby improving the combustion rate of the combustibles inside the furnace body.

[0010] As an optional solution to the technical solution of this application, the driving mechanism includes a transmission fan blade, a transmission bevel gear, and a follower bevel gear. Both ends of the inner side of the conveying pipe are fixedly installed with a fixed frame. A rotating rod is installed laterally through a bearing at the middle of the inner side of the fixed frame. A connecting sleeve is fixedly sleeved on the top side of the rotating rod. A transmission fan blade is fixedly installed on the outer surface of the connecting sleeve, and the number of transmission fan blades is several sets. A transmission bevel gear is fixedly sleeved on the top surface of the other side of the rotating rod. A transmission rod is vertically rotatably installed inside the connecting straight pipe. A follower bevel gear is fixedly sleeved on the top of the transmission rod, and the follower bevel gear and the transmission bevel gear mesh on their outer sides.

[0011] By adopting the above technical solution, through the structural action of the transmission fan blades and the meshing transmission action of the transmission bevel teeth and the follower bevel teeth, the rotating tube can rotate synchronously inside the furnace body along with the airflow, further improving the automation of airflow discharge and conveying.

[0012] As an optional solution to the technical solution of this application, the transmission mechanism includes a fixed rod, a transmission sleeve is fixedly sleeved at the bottom of the transmission rod, a fixed rod is fixedly installed on the outside of the transmission sleeve, and the top edge of the fixed rod is fixedly connected to the inner wall of the rotating tube.

[0013] By adopting the above technical solution, the transmission sleeve and the fixed rod can be connected and driven to rotate synchronously when the transmission rod rotates.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present application discloses a biomass boiler air distribution device, which includes a rotating pipe installed at the top of the boiler body and a rotating joint connecting the rotating pipe and a straight pipe. This allows the rotating pipe to rotate relative to the straight pipe while the rotating joint ensures the continuity between them. Consequently, after external air is drawn and delivered into the delivery pipe, the rotating pipe's rotatability allows air to pass normally through the straight pipe and the rotating joint to the rotating pipe and exhaust pipe. Combined with the synchronously rotating exhaust trough, external air is evenly distributed to different locations within the boiler body. This air distribution increases the contact between the combustibles and oxygen within the boiler, thereby improving the combustion rate of the combustibles.

[0016] 2. A biomass boiler air distribution device according to the technical solution of this application, by setting a drive fan blade at the air inlet end inside the conveying pipe, and setting a rotating rod connected to the drive fan blade on the side, so that the drive fan blade rotates when blown by the airflow, and drives the drive bevel gear to rotate synchronously. Under the meshing transmission action of the drive bevel gear and the follower bevel gear, and under the connection transmission action of the fixed rod, the power required for the rotation of the rotating pipe is provided, so that the rotating pipe can rotate synchronously inside the furnace body with the airflow, further improving the automation of airflow discharge and conveying. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the conveying pipe structure of a biomass boiler air distribution device according to this utility model;

[0018] Figure 2 This is a schematic diagram of the overall front cross-sectional structure of a biomass boiler air distribution device according to the present invention;

[0019] Figure 3 This is a bottom view cross-sectional structural diagram of the rotating pipe of a biomass boiler air distribution device according to this utility model.

[0020] Reference numerals in the attached drawings: 1. Furnace body; 11. Support frame; 12. Fixed sleeve; 13. Conveying pipe; 14. Gas supply pipe; 2. Rotating pipe; 21. Rotary joint; 22. Connecting straight pipe; 23. Fixed frame; 24. Rotating rod; 25. Transmission bevel gear; 26. Connecting sleeve; 27. Transmission fan blade; 3. Fixed rod; 31. Transmission sleeve; 32. Transmission rod; 33. Follower bevel gear; 4. Fixed straight pipe; 41. Exhaust pipe; 42. Exhaust groove. Detailed Implementation

[0021] like Figure 1-3As shown, this utility model provides a technical solution: a biomass boiler air distribution device, in which a rotating pipe 2 is vertically rotatably installed at the top center of the boiler body 1 via a sealed bearing, and support frames 11 are vertically fixedly installed on both sides of the top of the boiler body 1. A fixed sleeve 12 is fixedly installed on the top surface of each support frame 11, and a conveying pipe 13 is horizontally fixedly installed between the inner sides of the two sets of fixed sleeves 12. An air supply pipe 14 is fixedly connected to the top of the side of the conveying pipe 13.

[0022] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown), a fixed bracket 23 is fixedly installed at both ends of the inner side of the conveying pipe 13. A rotating rod 24 is installed in the middle of the inner side of the fixed bracket 23 by means of a bearing. A connecting sleeve 26 is fixedly sleeved on the top side of the rotating rod 24. A transmission fan blade 27 is fixedly installed on the outer surface of the connecting sleeve 26. There are several sets of transmission fan blades 27. The rotation direction of the transmission fan blades 27 is the same as the direction of the air inlet at the side end of the conveying pipe 13.

[0023] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown), a transmission bevel tooth 25 is fixedly sleeved on the top surface of the other side of the rotating rod 24. A transmission rod 32 is vertically and rotatably installed inside the connecting straight tube 22. The transmission rod 32 passes through the rotary joint 21 and extends rotatably into the rotating tube 2. A follower bevel tooth 33 is fixedly sleeved on the top of the transmission rod 32, and the follower bevel tooth 33 and the outer side of the transmission bevel tooth 25 mesh with each other.

[0024] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown), a transmission sleeve 31 is fixedly sleeved at the bottom of the transmission rod 32, and a fixing rod 3 is fixedly installed on the outside of the transmission sleeve 31. The top side of the fixing rod 3 is fixedly connected to the inner wall of the rotating tube 2.

[0025] In some technical solutions (through Figure 1 , Figure 2 and Figure 3 As shown), a rotary joint 21 is rotatably mounted on the top of the rotating pipe 2 via a sealed bearing. A connecting straight pipe 22 is rotatably sleeved on the top of the rotary joint 21 with a fixed sealed bearing. The top of the connecting straight pipe 22 is fixedly connected to the middle of the bottom of the conveying pipe 13. A fixed straight pipe 4 is fixedly connected to the bottom of the rotating pipe 2. An exhaust pipe 41 is fixedly connected to the bottom of the fixed straight pipe 4. An exhaust groove 42 is opened at the bottom of the exhaust pipe 41, and the number of exhaust grooves 42 is several sets.

[0026] During operation, after the combustible material is placed inside the furnace body 1, the airflow is then transported to the air supply pipe 14 by the exhaust fan. As the airflow flows inside the supply pipe 13, it abuts against the surface of the drive fan blade 27, causing the drive fan blade 27 to rotate synchronously with the drive bevel gear 25 under the transmission action of the rotating rod 24. Combined with the meshing transmission action of the drive bevel gear 25 and the follower bevel gear 33, the follower bevel gear 33 and the drive rod 32 rotate synchronously. This allows the drive rod 32 to rotate within the connecting straight pipe 22, rotary joint 21, and rotating pipe 2. Under the transmission action of the fixed rod 3 and the fixed sleeve 3112, the rotating pipe 2 then rotates within the rotary joint. The bottom of tube 21 rotates, connecting the rotating tube 2 and the connecting straight tube 22 via the rotary joint 21. This allows the rotating tube 2 to be connected to the straight tube 22 while they are rotating relative to each other. The rotary joint 21 ensures the continuity between the rotating tube 2 and the connecting straight tube 22. As a result, after external air is drawn and delivered into the delivery pipe 13, the air can be normally delivered to the rotating tube 2 and the exhaust pipe 41 through the connecting straight tube 22 and the rotary joint 21. Combined with the synchronous rotation of the exhaust groove 42, the external air is evenly delivered to different positions inside the furnace body 1. This air delivery to different positions inside the furnace body 1 increases the contact between the combustibles and oxygen inside the furnace body 1, thereby increasing the combustion rate of the combustibles inside the furnace body 1.

Claims

1. A biomass boiler air distribution device, comprising a boiler body (1), characterized in that: A rotating pipe (2) is vertically mounted on the top center of the furnace body (1) via a sealed bearing. Support frames (11) are vertically fixed on both sides of the top of the furnace body (1). A fixed sleeve (12) is fixedly mounted on the top surface of each support frame (11). A conveying pipe (13) is horizontally fixedly mounted between the inner sides of the two sets of fixed sleeves (12). A gas supply pipe (14) is fixedly connected to the top of the side of the conveying pipe (13). The conveying pipe (13) is equipped with a driving mechanism, and the rotating pipe (2) is equipped with a transmission mechanism. The driving mechanism and the transmission mechanism are connected in a transmission manner.

2. The air distribution device for a biomass boiler according to claim 1, characterized in that: The rotating pipe (2) has a rotating joint (21) mounted on its top via a sealed bearing. The rotating joint (21) has a fixed sealed bearing on its top and a connecting straight pipe (22) that is rotatably connected to it. The top of the connecting straight pipe (22) is fixedly connected to the middle of the bottom of the conveying pipe (13).

3. The air distribution device for a biomass boiler according to claim 2, characterized in that: The drive mechanism includes a drive fan blade (27), a drive bevel gear (25), and a follower bevel gear (33). Both ends of the inner side of the conveying pipe (13) are fixedly installed with a fixed frame (23). The middle of the inner side of the fixed frame (23) is rotatably mounted with a rotating rod (24) through a bearing. The top side of the rotating rod (24) is fixedly sleeved with a connecting sleeve (26). The outer surface of the connecting sleeve (26) is fixedly installed with a drive fan blade (27), and the number of drive fan blades (27) is several sets.

4. The air distribution device for a biomass boiler according to claim 3, characterized in that: The top surface of the other side of the rotating rod (24) is fixedly sleeved with a transmission bevel tooth (25). The connecting straight tube (22) is vertically rotatably installed inside. The transmission rod (32) passes through the rotary joint (21) and rotates to extend into the rotating tube (2). The top of the transmission rod (32) is fixedly sleeved with a follower bevel tooth (33), and the follower bevel tooth (33) and the outer side of the transmission bevel tooth (25) mesh with each other.

5. The air distribution device for a biomass boiler according to claim 4, characterized in that: The transmission mechanism includes a fixed rod (3), and a transmission sleeve (31) is fixedly sleeved at the bottom of the transmission rod (32). The fixed rod (3) is fixedly installed on the outside of the transmission sleeve (31), and the top side of the fixed rod (3) is fixedly connected to the inner wall of the rotating tube (2).

6. The air distribution device for a biomass boiler according to claim 1, characterized in that: The bottom of the rotating tube (2) is fixedly connected to a fixed straight tube (4), and the bottom of the fixed straight tube (4) is fixedly connected to an exhaust pipe (41). The bottom of the exhaust pipe (41) is provided with an exhaust groove (42), and the number of exhaust grooves (42) is several groups.

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