A boiler burner flame image recognition device

Abstract

The utility model belongs to boiler flame monitoring technical field, concretely provides a kind of boiler combustor flame image recognition device, including mounting bracket, installation sleeve and image acquisition component, installation sleeve is set on mounting bracket, and installation sleeve inside hollow is used to install fixed collar, optical assembly and industrial camera. Fixed collar is set in one end of installation sleeve and is housed in boiler hearth, and inside is formed with cooling channel, and the outlet end of cooling channel is towards the outer surface of lens. When using, blow gas into installation sleeve through air inlet hole, cooling airflow flows through the inner chamber of installation sleeve and carries away the heat of optical assembly, then enters cooling channel and blows out from first air outlet. Fixed collar is formed with multiple cooling channels along the circumferential direction of itself, can blow lens from different directions, the outer surface of lens is not easy to accumulate dust or coking, both improve the definition of flame image shooting, and delay the period that lens needs to clean or replace.

Description

Technical Field

[0001] This application belongs to the field of boiler flame monitoring technology, and more specifically, relates to a boiler burner flame image recognition device. Background Technology

[0002] Boilers are essential equipment in industries such as thermal power plants, steel mills, and glass manufacturing. To enable the control room to monitor the combustion status of the burners inside the boiler, existing boilers are equipped with furnace flame monitoring systems. These systems use an endoscopic tube inserted into the boiler to collect images of the furnace interior. The images are then transmitted via fiber optic cable or a lens assembly to an industrial camera at the other end of the tube. The industrial camera converts the image signals into electrical signals, which are then transmitted to the control room. A display screen in the control room then converts the electrical signals back into image signals for display.

[0003] Because the temperature inside the furnace exceeds 1200℃, a cooling system is needed to prevent damage to the endoscope tube due to high temperatures. There are two types of cooling systems: air cooling and water cooling. Water cooling offers better cooling performance, but requires an additional water tank and radiator, resulting in higher installation and operating costs, and is therefore less commonly used. Air cooling cools the endoscope tube by introducing cooling air into it. It only requires the installation of corresponding air ducts inside the endoscope tube, connected to a compressed air source. Its simple structure and ease of use have led to its adoption by many companies.

[0004] In actual use, the optical elements inside the lens tube are sealed within the tube body, making them less prone to damage or dirt accumulation. However, the lens at the very front of the lens tube is exposed to the furnace. Over time, the lens surface will develop coking and dust accumulation, resulting in blurry images. Repair personnel will need to clean the lens frequently. Utility Model Content

[0005] Based on the above-mentioned technical problems, this application provides a boiler burner flame image recognition device to solve the technical problem that the lens surface is prone to coking or ash accumulation in the prior art.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] A boiler burner flame image recognition device is provided, comprising:

[0008] Mounting brackets are used to connect to the outer wall of the boiler;

[0009] A mounting sleeve is provided on the mounting bracket. The mounting sleeve has a fixing ring at one end adjacent to the boiler and an air inlet at the end away from the boiler, communicating with its own inner bore. The fixing ring forms a cooling channel within its wall thickness. The cooling channel extends axially along the fixing ring, with one end communicating with the inner bore of the mounting sleeve and the other end communicating with the inner bore of the fixing ring to form a first air outlet. Multiple cooling channels are spaced apart along the circumference of the fixing ring.

[0010] The image acquisition component includes a lens disposed within the fixing collar, and an optical component and an industrial camera disposed sequentially on the side of the lens away from the boiler. The lens is located on the side of the first air outlet away from the boiler, and the outlet direction of the first air outlet faces the outer surface of the lens.

[0011] In one possible implementation, the mounting bracket includes:

[0012] A mounting plate for connecting to the outer wall of the boiler, and having a clearance hole extending through its own thickness, wherein the mounting sleeve is slidably fitted with the clearance hole; and

[0013] A support plate, connected to the mounting plate, and extending horizontally in a direction away from the mounting plate;

[0014] The boiler burner flame image recognition device further includes a telescopic component, which is located on the support plate and has a telescopic end that can move along its own axis. The telescopic end is provided with a connecting bracket, which is connected to the mounting sleeve.

[0015] In one possible implementation, the support plate is covered with a dust cover, and the telescopic component is housed within the dust cover.

[0016] In one possible implementation, the mounting sleeve is further provided with a second air outlet at the end away from the boiler, and the air inlet is located between the first air outlet and the second air outlet.

[0017] In one possible implementation, the boiler burner flame image recognition device further includes a cooling component, which comprises:

[0018] A cooling box, surrounding the mounting sleeve, is disposed on the side of the mounting bracket away from the boiler. The cooling box has a cooling cavity and an air inlet connector communicating with the cooling cavity. The mounting sleeve passes through the cooling cavity, and the air inlet is located inside the cooling cavity.

[0019] A semiconductor cooling plate has a cooling surface and a heating surface. The cooling surface is attached to the outer wall of the cooling box, and the heating surface is provided with heat-conducting fins.

[0020] In one possible implementation, the inner wall of the cooling box is provided with cooling fins.

[0021] In one possible implementation, the inner hole of the mounting sleeve is provided with a plurality of fixing plates spaced apart along its own axial direction, the optical component is disposed on the fixing plate, the fixing plate has a ventilation hole penetrating its own thickness, and the fixing plate is provided with a plurality of the ventilation holes spaced apart along its own circumferential direction.

[0022] In one possible implementation, the ventilation holes of two adjacent fixing plates are offset from each other axially in the mounting sleeve.

[0023] In one possible implementation, the central axis of the lens and the central axis of the mounting sleeve are arranged to intersect each other, the mounting sleeve is rotatably engaged with the mounting bracket, and the boiler burner flame image recognition device further includes a rotating component for driving the mounting sleeve to rotate about its own axis.

[0024] In one possible implementation, the retaining collar is threaded into the mounting sleeve, and the outer periphery of the retaining collar forms an external hexagonal structure.

[0025] Compared with the prior art, the beneficial effects of the boiler burner flame image recognition device provided in this application are:

[0026] This application provides a boiler burner flame image recognition device, comprising a mounting bracket, a mounting sleeve, and an image acquisition assembly. The mounting sleeve is mounted on the mounting bracket and is hollow inside for mounting a fixing ring, optical components, and an industrial camera. The fixing ring is located at one end of the mounting sleeve, which is housed within the boiler furnace, and has a cooling channel formed inside. The air outlet of the cooling channel faces the outer surface of the lens. In use, air is blown into the mounting sleeve through the air inlet. The cooling airflow flows through the inner cavity of the mounting sleeve, carrying away the heat from the optical components. Subsequently, the cooling airflow enters the cooling channel and exits from the first air outlet. The fixing ring has multiple cooling channels formed along its circumference, which can clean the outer surface of the lens from different directions. The outer surface of the lens is less prone to dust accumulation or coking, which improves the clarity of the flame image capture, delays the need for lens cleaning or replacement, and reduces the workload of maintenance personnel. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A perspective view of a boiler burner flame image recognition device provided in one embodiment of this application;

[0029] Figure 2 An exploded view of an assembly of a boiler burner flame image recognition device provided in one embodiment of this application;

[0030] Figure 3 A front view of a boiler burner flame image recognition device provided in one embodiment of this application;

[0031] Figure 4 for Figure 3 A cross-sectional view along the AA direction;

[0032] Figure 5 This is a schematic diagram of the structure of the fixing collar and lens in one embodiment of this application;

[0033] Figure 6 A perspective sectional view of a boiler burner flame image recognition device provided in one embodiment of this application;

[0034] Figure 7 A perspective view of a boiler burner flame image recognition device provided in another embodiment of this application;

[0035] Figure 8 This is a schematic diagram showing the connection between a boiler burner flame image recognition device and a controller.

[0036] Explanation of reference numerals in the attached figures:

[0037] 10. Mounting bracket; 11. Mounting plate; 12. Support plate; 13. Dust cover; 20. Mounting sleeve; 21. Air inlet; 22. Fixing collar; 221. Cooling channel; 222. First air outlet; 223. External hexagonal structure; 23. Second air outlet; 24. Fixing plate; 241. Air vent; 30. Image acquisition component; 31. Lens; 32. Optical component; 33. Industrial camera; 40. Telescopic component; 41. Telescopic end; 42. Connecting bracket; 50. Cooling component; 51. Cooling box; 511. Air inlet connector; 512. Cooling fins; 52. Semiconductor cooling plate; 53. Heat-conducting fins; 60. Rotating component; 70. Control box. Detailed Implementation

[0038] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0039] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0040] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "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 application 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 application.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0043] Please refer to the following: Figures 1 to 8 The following describes a boiler burner flame image recognition device provided in an embodiment of this application.

[0044] Please see Figure 1 , Figure 2 , Figure 5 and Figure 8This application provides a boiler burner flame image recognition device, including a mounting bracket 10, a mounting sleeve 20, and an image acquisition component 30. Mounting bracket 10 is used to connect to the outer wall of the boiler; mounting sleeve 20 is provided on mounting bracket 10, and mounting sleeve 20 is provided with a fixing collar 22 at one end near the boiler and an air inlet 21 communicating with its own inner hole at the other end away from the boiler; the fixing collar 22 forms a cooling channel 221 within its own wall thickness, the cooling channel 221 extends along the axial direction of the fixing collar 22, and one end communicates with the inner hole of the mounting sleeve 20 and the other end communicates with the inner hole of the fixing collar 22 to form a first air outlet 222, and multiple cooling channels 221 are spaced apart along the circumferential direction of the fixing collar 22; image acquisition component 30 includes a lens 31 provided in the fixing collar 22, and an optical component 32 and an industrial camera 33 sequentially provided on the side of the lens 31 away from the boiler, the lens 31 is located on the side of the first air outlet 222 away from the boiler, and the outlet direction of the first air outlet 222 faces the outer surface of the lens 31.

[0045] Compared with the prior art, the beneficial effects of the boiler burner flame image recognition device provided in this application embodiment are:

[0046] This application provides a boiler burner flame image recognition device including a mounting bracket 10, a mounting sleeve 20, and an image acquisition component 30. The mounting sleeve 20 is mounted on the mounting bracket 10 and is hollow inside for mounting a fixing ring 22, an optical component 32, and an industrial camera 33. The fixing ring 22 is located at one end of the mounting sleeve 20, which is housed within the boiler furnace, and has a cooling channel 221 formed inside it. The outlet end of the cooling channel 221 faces the outer surface of the lens 31. In use, air is blown into the mounting sleeve 20 through the air inlet 21. The cooling airflow flows through the inner cavity of the mounting sleeve 20 and carries away the heat of the optical component 32. Then the cooling airflow enters the cooling channel 221 and is blown out from the first air outlet 222. The fixing ring 22 has multiple cooling channels 221 along its own circumference, which can clean the outer surface of the lens 31 from different directions. The outer surface of the lens 31 is not easy to accumulate dust or coke, which not only improves the clarity of flame image shooting, but also delays the cycle of cleaning or replacing the lens 31, reducing the workload of maintenance personnel.

[0047] In this embodiment, the mounting bracket 10 is detachably mounted on the outer wall of the boiler using screws, and is used to support and fix the various components installed thereon. The mounting bracket 10 can be plate-shaped, strip-shaped, block-shaped, or other shapes, and the material of the mounting bracket 10 can be cast iron or carbon steel, as long as it has sufficient structural strength to form a stable support.

[0048] The mounting sleeve 20 is mounted on the mounting bracket 10. One end extends through the boiler wall thickness into the furnace of the boiler for mounting the lens 31 and optical components 32 to acquire burner flame image information inside the furnace; the other end is located outside the boiler for mounting the industrial camera 33.

[0049] The mounting sleeve 20 can be fixedly installed or retractably installed along its own axis via a cylinder or other driving component. A thermocouple can also be installed inside the mounting sleeve 20. The thermocouple is used to detect the temperature near the lens 31 of the mounting sleeve 20. When the temperature is too high, the thermocouple feeds the information back to the control box 70. The control box 70 controls the cylinder or other driving component to retract, causing the mounting sleeve 20 to exit the furnace, thus achieving automatic high-temperature protection.

[0050] The fixing collar 22 is located at the end of the mounting sleeve 20 that extends into the furnace chamber, and can be installed by means of threads, snaps, welding, etc. The lens 31 is embedded in the inner hole of the fixing collar 22. The lens 31 can be a plane lens or a convex lens. The convex lens has a wider field of view, and the specific choice can be made according to actual needs.

[0051] If needed, the inner hole of the retaining collar 22 can also be designed as Figure 5 The flared shape shown helps to increase the image acquisition range of lens 31. Multiple cooling channels 221 are formed within the wall thickness of the retaining ring 22. The cooling channels 221 can be obtained by drilling, casting or other methods.

[0052] Normally, when coking occurs on the surface of the lens 31, the mounting sleeve 20 needs to be removed from the furnace for cleaning. This cleaning process takes 10-15 minutes, during which time the internal state of the furnace cannot be monitored. In this embodiment, multiple cooling channels 221 are evenly distributed circumferentially, enabling the lens 31's outer surface to be blown clean from multiple directions, delaying coking or ash accumulation. This allows maintenance personnel to clean the lens 31 more frequently, reducing their workload.

[0053] like Figure 5 As shown, the purging channel is formed by a combination of two drilled holes. One hole is drilled horizontally along the axial direction from one end of the fixing collar 22 adjacent to the mounting sleeve 20, and the other hole is drilled radially from the outer circumferential surface of the fixing collar 22 until it penetrates the inner hole of the fixing collar 22. After the second hole is completed, the drilled end of the second hole is sealed by welding, and the two drilled holes together form the cooling channel 221.

[0054] The mounting sleeve 20 can be a single tube or an axial combination of multiple tubes. The industrial camera 33 is located at one end of the mounting sleeve 20 outside the boiler. A protective housing can be installed on the outside of the industrial camera 33 for protection.

[0055] The mounting sleeve 20, located on the outer side of the boiler, has an air inlet 21. The air inlet 21 can be connected to a compressed air source via a gas delivery hose, or a fan can be installed at the air inlet as the air source. To prevent dust from entering the mounting sleeve 20, a filter element (such as an air filter) should be installed to filter dust, regardless of whether a compressed air source or a fan is used. The filter element is a commercially available product, and its specific specifications and model are not limited.

[0056] The image acquisition component 30 includes a lens 31, an optical component 32, and an industrial camera 33. The lens 31 can be a plane mirror or a convex lens. The optical component 32 is used to transmit the light acquired by the lens 31. The optical component 32 can be an optical fiber or a lens group. The industrial camera 33 is located at the light-emitting end of the optical component 32 and can convert the light signal into an electrical signal and transmit it to the control box 70. The control box 70 then transmits the signal to the control room, where the display screen can convert the electrical signal into an image signal and display it.

[0057] The industrial camera 33 and optical components 32 are both conventional products in the prior art, and there are no restrictions on their specific specifications and models. Users can choose and set them according to their needs.

[0058] Please see Figure 1 , Figure 2 and Figure 3 The mounting bracket 10 is formed by welding together a mounting plate 11 and a support plate 12. The mounting plate 11 is used to connect with the outer wall of the boiler and has a clearance hole that extends through its own thickness direction. The mounting sleeve 20 is slidably fitted with the clearance hole. The support plate 12 is connected to the mounting plate 11 and extends horizontally away from the mounting plate 11. The boiler burner flame image recognition device also includes a telescopic component 40, which is located on the support plate 12 and has a telescopic end 41 that can move along its own axial direction. The telescopic end 41 is provided with a connecting bracket 42, which is connected to the mounting sleeve 20.

[0059] The telescopic component 40 can be an electric telescopic rod, a telescopic cylinder, etc. When maintenance is required or the temperature of the lens 31 is too high, the telescopic component 40 can retract through the telescopic end 41, driving the mounting sleeve 20 out of the furnace, making it convenient for maintenance personnel to replace or clean the lens 31.

[0060] Please see Figure 1 , Figure 2 and Figure 3 The support plate 12 is covered with a dust cover 13, and the telescopic component 40 is housed inside the dust cover 13. The dust cover 13 serves to prevent bumps and dust.

[0061] Please see Figure 1 and Figure 2The mounting sleeve 20 also has a second vent 23 at the end furthest from the boiler. The inlet 21 is located between the first vent 222 and the second vent 23. Cooling gas enters the mounting sleeve 20 through the inlet 21 and then flows along two paths. One path flows along the optical assembly 32 towards the fixing collar 22, and is blown out from the first vent 222 to cool and clean the outer surface of the lens 31. The other path flows along the optical assembly 32 towards the industrial camera 33, and is blown out from the second vent to cool the industrial camera 33.

[0062] To ensure effective airflow cooling, the inlet air temperature should not exceed 25°C when using air cooling. When the highest temperature inside the furnace exceeds 1150°C, the air pressure at the inlet 21 should not be less than 0.3 MPa, and the cooling airflow through the lens 31 and industrial camera 33 should not be less than 35 m³ / h. 3 / h. When the highest temperature inside the furnace exceeds 950℃, the air pressure at the air inlet 21 shall not be less than 0.2MPa, and the cooling airflow through the lens 31 and the industrial camera 33 shall not be less than 25m³ / h. 3 / h. When the highest temperature inside the furnace exceeds 750℃, the air pressure at the air inlet 21 shall not be less than 0.2MPa, and the cooling airflow through the lens 31 and the industrial camera 33 shall not be less than 23m³ / h. 3 / h.

[0063] When the temperature inside the furnace exceeds 1200℃ or the inlet air temperature exceeds 25℃, an auxiliary cooling device needs to be added to reduce the inlet air temperature.

[0064] Please see Figure 1 , Figure 2 and Figure 4 The boiler burner flame image recognition device also includes a cooling component 50, which includes a cooling box 51 and a semiconductor refrigeration plate 52. The cooling box 51 is located around the mounting sleeve 20 on the side of the mounting bracket 10 away from the boiler. The cooling box 51 has a cooling cavity and an air inlet connector 511 communicating with the cooling cavity. The mounting sleeve 20 passes through the cooling cavity, and the air inlet 21 is located inside the cooling cavity. The semiconductor refrigeration plate 52 has a cooling surface and a heating surface. The cooling surface is attached to the outer wall of the cooling box 51, the heating surface is provided with heat-conducting fins 53, and the inner wall of the cooling box 51 is provided with cold-conducting fins 512.

[0065] The cooling assembly 50 includes a cooling box 51 and a semiconductor cooling plate 52. The cooling box 51 is made of a material with excellent thermal conductivity, such as stainless steel or aluminum alloy. The semiconductor cooling plate 52 is existing technology; when powered on, one side cools and the other side heats. The cooling side is attached to the outer wall of the cooling box 51, and the cooling energy is transferred to the cooling cavity through the cooling box 51 and the heat-conducting fins 53. The cooling box 51 is equipped with an air inlet connector 511, which connects to an air source. When the air path is open, the cooling air in the cooling cavity can be blown into the mounting sleeve 20 to improve the cooling effect.

[0066] Both the heat-conducting fins 53 and the cold-conducting fins 512 are composed of multiple parallel metal plates, which are used to improve the heat or cold dissipation effect.

[0067] The heating surface of the thermoelectric cooler 52 is equipped with heat-conducting fins 53, which dissipate the heat generated on the heating surface to the outside, ensuring the normal operation of the thermoelectric cooler 52. Furthermore, a cooling fan can be installed on the heat-conducting fins 53 to accelerate heat dissipation. The thermoelectric cooler 52 is connected to the control box 70 and its operation is controlled by the control box 70. When it is necessary to cool the intake air temperature, the thermoelectric cooler 52 is energized to cool the air inside the cooling box 51, thereby lowering the intake air temperature.

[0068] Please see Figure 4 and Figure 6 The inner hole of the mounting sleeve 20 is provided with multiple fixing plates 24 at intervals along its own axial direction. The optical component 32 is disposed on the fixing plate 24. The fixing plate 24 is used to fix the optical fiber or lens. The fixing plate 24 has a ventilation hole 241 that penetrates its own thickness. The fixing plate 24 is provided with multiple ventilation holes 241 at intervals along its own circumference. The ventilation holes 241 are used to allow cooling airflow to pass through.

[0069] Please see Figure 6 The air vents 241 of the two adjacent fixing plates 24 are staggered in the axial direction of the mounting sleeve 20, so that the cooling airflow forms turbulence inside the mounting sleeve 20, increasing the residence time of the cooling airflow in the mounting ring, which helps to better remove the heat of the optical component 32.

[0070] The lens 31 can be coaxially mounted with the mounting sleeve 20, or it can be tilted at a certain angle (e.g., 45°). For example, please refer to... Figure 7 The central axis of the lens 31 and the central axis of the mounting sleeve 20 are intersected. The mounting sleeve 20 and the mounting bracket 10 are rotatably engaged. The boiler burner flame image recognition device also includes a rotating component 60, which can be a motor that can drive the mounting sleeve 20 to rotate around its own axis so that the lens 31 faces different directions, thereby increasing the range of the area that the lens 31 can collect.

[0071] The movements of components such as the semiconductor cooling plate 52, industrial camera 33, cooling air source, telescopic component 40, and rotating component 60 can be controlled by the control box 70. The control box 70 contains a control circuit board, which collects and transmits data through a PLC control program. The PLC control program is a conventional control method for electromechanical equipment and will not be described in detail here.

[0072] Please see Figure 5 The retaining collar 22 is threadedly engaged with the mounting sleeve 20. The outer circumference of the retaining collar 22 forms an external hexagonal structure 223, which is convenient for wrench clamping. After clamping with the wrench, the retaining collar 22 and the lens 31 can be removed for replacement.

[0073] It is understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments. The specific contents of each combined embodiment will not be repeated here. After this description, it can be considered that the present utility model specification has recorded each combined embodiment and can support different combined embodiments.

[0074] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 boiler burner flame pattern recognition apparatus, characterized by, include: Mounting bracket (10) is used to connect to the outer wall of the boiler; An mounting sleeve (20) is provided on the mounting bracket (10). The mounting sleeve (20) has a fixing ring (22) at one end near the boiler and an air inlet (21) communicating with its inner hole at the other end away from the boiler. The fixing ring (22) forms a cooling channel (221) within its wall thickness. The cooling channel (221) extends axially along the fixing ring (22), with one end communicating with the inner hole of the mounting sleeve (20) and the other end communicating with the inner hole of the fixing ring (22) to form a first air outlet (222). Multiple cooling channels (221) are spaced apart along the circumference of the fixing ring (22). The image acquisition component (30) includes a lens (31) disposed within the fixing collar (22), and an optical component (32) and an industrial camera disposed sequentially on the side of the lens (31) away from the boiler. The lens (31) is located on the side of the first air outlet (222) away from the boiler, and the outlet direction of the first air outlet (222) faces the outer surface of the lens (31).

2. A boiler burner flame pattern recognition apparatus according to claim 1, wherein The mounting bracket (10) includes: Mounting plate (11) for connecting to the outer wall of the boiler, and having a clearance hole extending through its own thickness, wherein the mounting sleeve (20) is slidably fitted with the clearance hole; and A support plate (12) is connected to the mounting plate (11) and extends horizontally in a direction away from the mounting plate (11); The boiler burner flame image recognition device further includes a telescopic component (40), which is located on the support plate (12) and has a telescopic end (41) that can move along its own axis. The telescopic end (41) is provided with a connecting bracket (42), which is connected to the mounting sleeve (20).

3. A boiler burner flame pattern recognition apparatus according to claim 2, wherein The support plate (12) is covered with a dust cover (13), and the telescopic component (40) is housed inside the dust cover (13).

4. A boiler burner flame pattern recognition apparatus according to claim 1, wherein The mounting sleeve (20) is also provided with a second air outlet (23) at the end away from the boiler, and the air inlet (21) is located between the first air outlet (222) and the second air outlet (23).

5. The boiler burner flame image recognition device according to claim 1, characterized in that, The boiler burner flame image recognition device further includes a cooling component (50), which comprises: A cooling box (51) is disposed around the mounting sleeve (20) on the side of the mounting bracket (10) away from the boiler. The cooling box (51) has a cooling cavity and an air inlet connector (511) communicating with the cooling cavity. The mounting sleeve (20) passes through the cooling cavity, and the air inlet (21) is located inside the cooling cavity. The semiconductor cooling plate (52) has a cooling surface and a heating surface. The cooling surface is attached to the outer wall of the cooling box (51), and the heating surface is provided with heat-conducting fins (53).

6. The boiler burner flame image recognition device according to claim 5, characterized in that, The inner wall of the cooling box (51) is provided with cooling fins (512).

7. The boiler burner flame image recognition device according to claim 1, characterized in that, The inner hole of the mounting sleeve (20) is provided with a plurality of fixing plates (24) spaced apart along its own axial direction. The optical component (32) is disposed on the fixing plate (24). The fixing plate (24) has a ventilation hole (241) that penetrates its own thickness. The fixing plate (24) is provided with a plurality of ventilation holes (241) spaced apart along its own circumference.

8. A boiler burner flame image recognition device according to claim 7, characterized in that, The ventilation holes (241) of two adjacent fixing plates (24) are offset from each other in the axial direction of the mounting sleeve (20).

9. A boiler burner flame image recognition device according to claim 1, characterized in that, The central axis of the lens (31) and the central axis of the mounting sleeve (20) are intersected. The mounting sleeve (20) and the mounting bracket (10) are rotatably engaged. The boiler burner flame image recognition device also includes a rotating component (60), which is used to drive the mounting sleeve (20) to rotate around its own axis.

10. A boiler burner flame image recognition device according to claim 1, characterized in that, The fixing collar (22) is threadedly engaged with the mounting sleeve (20), and the outer periphery of the fixing collar (22) forms an external hexagonal structure (223).

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