Energy-saving air inlet mechanism of biomass boiler

Abstract

The utility model discloses an energy-saving air inlet mechanism of a biomass boiler, which comprises an air inlet pipe, an air pressure sensor is used for detecting and sensing the quantity of air flowing through the air inlet pipe, the air pressure sensor feeds back the collected information to a controller, and the controller controls a driving motor in an adjusting assembly to rotate. The output shaft of the driving motor drives the gear to be meshed with the annular fluted disc, so that the annular fluted disc drives the rotating air disc to rotate, the air passing holes in the rotating air disc are staggered or overlapped with the air passing holes in the fixed air disc, and when the air passing holes in the rotating air disc are completely overlapped with the air passing holes in the fixed air disc, the air volume is maximum; the air quantity is minimum when the air passing holes in the rotating air disc and the air passing holes in the fixed air disc are completely staggered, the air quantity can be adjusted by adjusting the staggered and overlapped opening sizes of the air passing holes in the rotating air disc and the air passing holes in the fixed air disc, the situation that combustion of fuel in the biomass boiler is affected by too large or too small air quantity is avoided, and the biomass boiler has a certain energy-saving effect and is simple in structure and convenient to use. The practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass boilers, in particular to an energy-saving air intake mechanism of a biomass boiler. Background Art

[0002] Biomass boiler is a type of boiler. The boiler that uses biomass energy as fuel is called a biomass boiler. It is divided into biomass steam boiler, biomass hot water boiler, biomass hot air furnace, biomass thermal oil furnace, vertical biomass boiler, horizontal biomass boiler, etc. The boiler can be equipped with a fuel (gas) ignition burner to achieve automatic ignition. The feeding, combustion, slag removal, water supply and ignition of the boiler can all be automatically controlled, which is very convenient to operate. The boiler is equipped with an automatic ash cleaning device, which can promptly remove the ash accumulated on the heating surface of the boiler to ensure the efficient and stable operation of the boiler. An economizer is arranged at the tail of the boiler, and an air preheater can also be arranged according to user needs. Compared with traditional boilers, the boiler has higher efficiency and lower exhaust gas temperature.

[0003] When the biomass boiler is working, an induced draft device is required to assist the combustion of the fuel to avoid incomplete combustion of the fuel in the biomass boiler under insufficient oxygen. When the existing induced draft device supplies air to the biomass boiler, it is unable to adjust the amount of air sent into the biomass boiler. Too much or too little air volume will affect the combustion of the fuel inside the biomass boiler. Therefore, we need to propose an energy-saving air intake mechanism for the biomass boiler. Utility Model Content

[0004] The purpose of the utility model is to provide an energy-saving air intake mechanism for a biomass boiler, which controls the air volume sent into the biomass boiler by the induced draft component through an adjusting component to avoid excessive or insufficient air volume affecting the combustion of fuel inside the biomass boiler, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An energy-saving air intake mechanism for a biomass boiler comprises an air intake pipe, an air induction component is installed inside the air intake pipe, and an adjustment component for adjusting the air volume is arranged on one side of the air intake pipe located at the air induction component;

[0007] The regulating assembly includes a fixed air disc, which is fixedly mounted on the inner wall of the air inlet pipe, one side of the fixed air disc is rotatably connected to a rotating air disc, and the fixed air disc and the rotating air disc are both provided with a plurality of groups of corresponding air holes, an annular gear disc is fixedly sleeved on the outer wall of the rotating air disc, a gear is meshed on the top of the annular gear disc, and a driving motor is fixedly connected to the inner ring of the gear;

[0008] A wind pressure sensor is fixedly embedded in the top of one end of the air inlet pipe.

[0009] Preferably, the fixed wind disc is located in the middle of several groups of air holes and is fixedly embedded with a rotating bearing, the inner ring of the rotating bearing is fixedly plugged with a rotating rod, and one end of the rotating rod is fixedly connected to one side of the rotating wind disc.

[0010] Preferably, a mounting shell is fixedly mounted on the top of the air inlet pipe, the drive motor is fixedly mounted on one side of the mounting shell, and one end of the output shaft of the drive motor passes through the mounting shell and is fixedly connected to the inner ring of the gear.

[0011] Preferably, the gear is located inside the mounting shell, a avoidance groove is provided on the top of the air inlet pipe, and the bottom of the gear passes through the avoidance groove and meshes with the top of the annular gear disc.

[0012] Preferably, the induced draft assembly includes two groups of support plates, the two groups of support plates are respectively fixedly mounted on the inner wall of one side of the air inlet duct, an induced draft motor is fixedly mounted on the opposite ends of the two groups of support plates, and one end of the induced draft motor output shaft is fixedly connected to an induced draft fan blade.

[0013] Preferably, a controller is fixedly mounted on one side of the mounting shell, and the controller is electrically connected to the induced draft motor, the drive motor and the wind pressure sensor respectively through wires.

[0014] Preferably, a flow equalizing plate is fixedly mounted on one side of the air inlet pipe located at the regulating assembly, and the diameter of the flow equalizing plate is matched with the inner diameter of the air inlet pipe.

[0015] Preferably, a connecting flange is fixedly mounted on the outer wall of one end of the air inlet duct located at the wind pressure sensor, and a dustproof net is fixedly mounted on one end of the air inlet duct located at the air induced component.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model detects and senses the air volume flowing through the air inlet pipe through a wind pressure sensor, and the wind pressure sensor feeds back the collected information to a controller, which controls the driving motor in the regulating component to rotate, and drives the gear to mesh with the annular gear plate through the driving motor output shaft, so that the annular gear plate drives the rotating wind disk to rotate, so that the air holes on the rotating wind disk are staggered or overlapped with the air holes on the fixed wind disk. When the air holes on the rotating wind disk and the air holes on the fixed wind disk completely overlap, the air volume is maximum, and when the air holes on the rotating wind disk and the air holes on the fixed wind disk are completely staggered, the air volume is minimum. The air volume can be adjusted by adjusting the size of the staggered and overlapping openings of the air holes on the rotating wind disk and the air holes on the fixed wind disk, so as to avoid excessive or insufficient air volume affecting the combustion of fuel inside the biomass boiler. The utility model has a certain energy-saving effect, a simple structure, and is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model from the side;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model in cross section;

[0020] Figure 3 This is a schematic diagram of the structure of the gear and the avoidance groove of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the adjustment component of the utility model.

[0022] In the figure: 1. air inlet duct; 2. induced draft assembly; 21. support plate; 22. induced draft motor; 23. induced draft fan blades; 3. adjustment assembly; 31. fixed wind disc; 32. rotating bearing; 33. rotating rod; 34. rotating wind disc; 35. annular gear disc; 36. gear; 37. drive motor; 38. air hole; 4. mounting shell; 5. avoidance groove; 6. flow equalizing plate; 7. wind pressure sensor; 8. connecting flange; 9. dust screen; 10. controller. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 , the utility model provides a technical solution:

[0025] An energy-saving air intake mechanism for a biomass boiler comprises an air intake pipe 1, an air induction component 2 is installed inside the air intake pipe 1, and an adjustment component 3 for adjusting the air volume is arranged on one side of the air inlet pipe 1 located at the air induction component 2;

[0026] The regulating component 3 includes a fixed air disc 31, which is fixedly installed on the inner wall of the air inlet pipe 1. One side of the fixed air disc 31 is rotatably connected to a rotating air disc 34. Both the fixed air disc 31 and the rotating air disc 34 are provided with a plurality of groups of corresponding air holes 38. An annular toothed disc 35 is fixedly sleeved on the outer wall of the rotating air disc 34. A gear 36 is meshed on the top of the annular toothed disc 35. The inner ring of the gear 36 is fixedly connected to a driving motor 37, so that the gear 36 is meshed with the annular toothed disc 35 through the output shaft of the driving motor 37, so that the annular toothed disc 35 drives the rotating air disc 34 to rotate, so that the air holes 38 on the rotating air disc 34 are staggered or overlapped with the air holes 38 on the fixed air disc 31. The air volume is adjusted by adjusting the size of the staggered and overlapped openings of the air holes 38 on the rotating air disc 34 and the air holes 38 on the fixed air disc 31.

[0027] A wind pressure sensor 7 is fixedly embedded in the top of one end of the air inlet pipe 1, so as to detect and sense the air volume flowing through the air inlet pipe 1 through the wind pressure sensor 7.

[0028] The fixed wind disc 31 is located in the middle of several groups of air holes 38 and is fixedly embedded with a rotating bearing 32. The inner ring of the rotating bearing 32 is fixedly inserted with a rotating rod 33. One end of the rotating rod 33 is fixedly connected to one side of the rotating wind disc 34, so that the rotating wind disc 34 can rotate through the cooperation between the rotating bearing 32 and the rotating rod 33.

[0029] A mounting shell 4 is fixedly installed on the top of the air inlet pipe 1, and a drive motor 37 is fixedly installed on one side of the mounting shell 4. The drive motor 37 is configured as a stepping drive motor, and one end of the output shaft of the drive motor 37 passes through the mounting shell 4 and is fixedly connected to the inner ring of the gear 36.

[0030] The gear 36 is located inside the mounting shell 4 , and a avoidance groove 5 is provided on the top of the air inlet pipe 1 . The bottom of the gear 36 passes through the avoidance groove 5 and meshes with the top of the annular gear plate 35 , so that the gear 36 can avoid the avoidance groove 5 .

[0031] The induced draft assembly 2 includes two groups of support plates 21, which are respectively fixedly installed on the inner wall of one side of the air inlet pipe 1, and an induced draft motor 22 is fixedly installed at the opposite end of the two groups of support plates 21. One end of the output shaft of the induced draft motor 22 is fixedly connected to an induced draft fan blade 23, so that the induced draft fan blade 23 is driven by the induced draft motor 22 to rotate and draw outside air into the air inlet pipe 1.

[0032] A controller 10 is fixedly mounted on one side of the mounting shell 4 , and the controller 10 is electrically connected to the induced draft motor 22 , the drive motor 37 and the wind pressure sensor 7 through wires, so that the electrically connected components can be controlled by the controller 10 .

[0033] A flow equalizing plate 6 is fixedly installed on one side of the air inlet pipe 1 located at the regulating component 3, and the diameter of the flow equalizing plate 6 is adapted to the inner diameter of the air inlet pipe 1, so that the air volume passing through the regulating component 3 can be evenly dispersed and ventilated into the biomass boiler through the cooperation of the flow equalizing plate 6.

[0034] A connecting flange 8 is fixedly installed on the outer wall of one end of the air inlet duct 1 located at the wind pressure sensor 7, and a dustproof net 9 is fixedly installed on one end of the air inlet duct 1 located at the air induced component 2, so as to filter and block the air entering the air inlet duct 1 through the dustproof net 9.

[0035] Working principle: When the utility model is used, the controller 10 controls the induced draft motor 22 in the induced draft assembly 2 to drive the induced draft fan blades 23 to rotate to draw outside air into the air inlet pipe 1, and the wind pressure sensor 7 detects and senses the air volume flowing through the air inlet pipe 1. The wind pressure sensor 7 feeds back the collected information to the controller 10, and the controller 10 controls the driving motor 37 in the regulating assembly 3 to rotate, and the output shaft of the driving motor 37 drives the gear 36 to mesh with the annular gear plate 35, so that the annular gear plate 35 drives the rotating fan plate 34 to rotate, so that the rotating fan plate 34 rotates. The air holes 38 on the moving air disk 34 are staggered or overlapped with the air holes 38 on the fixed air disk 31. When the air holes 38 on the rotating air disk 34 are completely overlapped with the air holes 38 on the fixed air disk 31, the air volume is maximum, and when the air holes 38 on the rotating air disk 34 are completely staggered with the air holes 38 on the fixed air disk 31, the air volume is minimum. The air volume can be adjusted by adjusting the size of the staggered and overlapping openings of the air holes 38 on the rotating air disk 34 and the air holes 38 on the fixed air disk 31. The equalizer plate 6 cooperates to ensure that the air volume passing through the adjustment component 3 is evenly dispersed and ventilated and sent into the biomass boiler.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving air intake mechanism for a biomass boiler, comprising an air intake pipe (1), characterized in that: An air induction component (2) is installed inside the air inlet pipe (1); and an adjustment component (3) for adjusting the air volume is arranged on one side of the air inlet pipe (1) located on the side of the air induction component (2); The regulating assembly (3) comprises a fixed wind disc (31), the fixed wind disc (31) being fixedly mounted on the inner wall of the air inlet pipe (1), one side of the fixed wind disc (31) being rotatably connected to a rotating wind disc (34), the fixed wind disc (31) and the rotating wind disc (34) both being provided with a plurality of groups of mutually corresponding air holes (38), an annular toothed disc (35) being fixedly sleeved on the outer wall of the rotating wind disc (34), a gear (36) being meshed at the top of the annular toothed disc (35), and a driving motor (37) being fixedly connected to the inner ring of the gear (36); A wind pressure sensor (7) is fixedly embedded in the top of one end of the air inlet pipe (1).

2. The energy-saving air intake mechanism of a biomass boiler according to claim 1 is characterized in that: The fixed wind disc (31) is located in the middle of the plurality of groups of air holes (38) and is fixedly embedded with a rotating bearing (32); a rotating rod (33) is fixedly inserted into the inner ring of the rotating bearing (32); and one end of the rotating rod (33) is fixedly connected to one side of the rotating wind disc (34).

3. The energy-saving air intake mechanism of a biomass boiler according to claim 1 is characterized in that: A mounting shell (4) is fixedly mounted on the top of the air inlet pipe (1); the drive motor (37) is fixedly mounted on one side of the mounting shell (4); and one end of an output shaft of the drive motor (37) passes through the mounting shell (4) and is fixedly connected to the inner ring of the gear (36).

4. The energy-saving air intake mechanism of a biomass boiler according to claim 3 is characterized in that: The gear (36) is located inside the mounting shell (4), a avoidance groove (5) is provided on the top of the air inlet pipe (1), and the bottom of the gear (36) passes through the avoidance groove (5) and meshes with the top of the annular gear disc (35).

5. The energy-saving air intake mechanism of a biomass boiler according to claim 4 is characterized in that: The induced draft assembly (2) comprises two groups of support plates (21), the two groups of support plates (21) being fixedly mounted on one inner wall of the air inlet pipe (1), respectively; an induced draft motor (22) is fixedly mounted on opposite ends of the two groups of support plates (21), and one end of an output shaft of the induced draft motor (22) is fixedly connected to an induced draft fan blade (23).

6. The energy-saving air intake mechanism of a biomass boiler according to claim 5, characterized in that: A controller (10) is fixedly mounted on one side of the mounting shell (4), and the controller (10) is electrically connected to the induced draft motor (22), the drive motor (37), and the wind pressure sensor (7) respectively through wires.

7. The energy-saving air intake mechanism of a biomass boiler according to claim 1 is characterized in that: The air inlet pipe (1) is fixedly mounted with a flow equalizing plate (6) on one side of the regulating assembly (3), and the diameter of the flow equalizing plate (6) is adapted to the inner diameter of the air inlet pipe (1).

8. The energy-saving air intake mechanism of a biomass boiler according to claim 1 is characterized in that: A connecting flange (8) is fixedly mounted on the outer wall of one end of the air inlet pipe (1) located at the wind pressure sensor (7), and a dustproof net (9) is fixedly mounted on one end of the air inlet pipe (1) located at the air induction component (2).

Images