Blower device for a burner

Abstract

The application discloses a kind of air supply devices of combustor, the air supply device of combustor includes air distribution assembly, air supply assembly and adjusting piece, air distribution assembly includes air distribution box and multiple air outlet pipes, one side of air distribution box has multiple mounting holes, the other side has opening opposite to mounting hole, multiple air outlet pipes are correspondingly arranged in multiple mounting holes, air supply assembly includes air distribution disc and air box, air distribution disc is rotatably installed at opening, and air distribution disc has multiple air distribution holes, air box has multiple air inlet pipes communicated with air distribution hole, and air box is provided with pressing member between air distribution disc, adjusting piece includes adjusting rod and limiting piece, adjusting rod passes through air box, air distribution disc in sequence and is connected with air distribution box, limiting piece is movably arranged on adjusting rod and abuts against the side of air box away from air distribution disc.The air supply device of combustor of the application can pass primary air into shell under the working condition that air distribution assembly rotates, reduce primary air loss, improve primary air utilization.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of burners, in particular to an air supply device of a burner. BACKGROUND

[0002] In a rotary burner, in order to make the fuel fully burn, primary air is usually introduced to act on the combustion cone, however, in the related art, while the combustion cone rotates, the tightness of the air supply device and the combustion cone cannot be ensured, resulting in a large amount of leakage of the introduced primary air, reducing the utilization rate of the primary air. SUMMARY

[0003] The technical problem to be solved by the present application is to provide an air supply device of a burner, which can introduce primary air into the shell under the working condition that the air distribution assembly rotates, and the air supply assembly and the air distribution assembly always maintain good sealing between them during the process, the primary air is not lost, the leakage of the primary air is greatly reduced, and the utilization rate of the primary air is improved.

[0004] The air supply device of the burner of the present application, the burner has a shell, the shell is provided with an assembly hole, the air supply device comprises: an air distribution assembly, the air distribution assembly comprises an air distribution box and a plurality of air outlet pipes, the air distribution box is rotatably installed at the assembly hole and partially located in the shell, the side of the air distribution box facing the inside of the shell has a plurality of mounting holes arranged at intervals in the circumferential direction thereof, the side of the air distribution box located outside the shell has openings opposite to the mounting holes, a plurality of air outlet pipes are correspondingly arranged in a plurality of mounting holes and one end of each air outlet pipe extends into the shell and the other end is fitted in the air distribution box; an air supply assembly, the air supply assembly comprises an air distribution disc and an air box, the air distribution disc is rotatably installed at the opening, and the air distribution disc has a plurality of air distribution holes arranged at intervals in the circumferential direction thereof, a plurality of air distribution holes are opposite to a plurality of air outlet pipes, the air box is located on the side of the air distribution box away from the shell, and the air box has a plurality of air inlet pipes communicating with the air distribution holes, a pressing member is arranged between the air box and the air distribution disc, one end of the pressing member abuts against the air distribution disc, and the other end abuts against the air box; an adjusting member, the adjusting member comprises an adjusting rod and a limiting member, the adjusting rod passes through the air box, the air distribution disc and is connected with the air distribution box in sequence, the limiting member is arranged on the adjusting rod and abuts against the side of the air box away from the air distribution disc, and the limiting member is movable along the length direction of the adjusting rod and can be self-locked on the adjusting rod after moving.

[0005] The air supply device of the combustor according to the embodiment of the application comprises an air distribution assembly and an air supply assembly. The air distribution assembly comprises an air distribution box and a plurality of air outlet pipes. The air distribution box is rotatably arranged at the assembly hole of the shell. The side of the air distribution box facing the shell is provided with a plurality of mounting holes. The side of the air distribution box facing away from the shell is provided with openings corresponding to the mounting holes. The plurality of air outlet pipes are arranged in the plurality of mounting holes. The air supply assembly comprises an air distribution disc and an air box. The air distribution disc is rotatably arranged at the openings. The air distribution disc is provided with a plurality of air distribution holes corresponding to the plurality of air outlet pipes. The air box is provided with a plurality of air inlet pipes corresponding to the air distribution holes. The air box and the air distribution disc are provided with a pressing member. The adjusting member comprises an adjusting rod and a limiting member. The adjusting rod passes through the air box, the air distribution disc and the air distribution box in sequence. The limiting member is movably arranged on the adjusting rod and abuts against the side of the air box facing away from the air distribution disc. Thus, the air supply assembly can supply primary air into the shell when the air distribution assembly rotates. The air supply assembly and the air distribution assembly maintain good sealing during the process. The primary air is not lost in the process. The leakage of the primary air is reduced. The utilization rate of the primary air is improved. The air outlet pipes arranged circumferentially around the air supply assembly can guide the primary air to different directions in the shell. Thus, the primary air can fully act on the fuel combustion. The combustion efficiency is improved. The position of the limiting member can be adjusted by the adjusting rod. Thus, the tightness of the pressing member can be adjusted. The air distribution assembly and the air supply assembly can operate in a suitable pressing condition. The leakage of the primary air is reduced. The rotation of the air distribution assembly is smooth.

[0006] In some embodiments, the adjusting rod is a threaded rod, and the limiting member is a limiting nut.

[0007] In some embodiments, the outer peripheral edge of the opening is provided with an assembly groove recessed towards the shell. The air distribution disc is embedded in the assembly groove.

[0008] In some embodiments, the air distribution disc and the assembly groove are provided with a sealing member.

[0009] In some embodiments, the sealing member is an annular sealing ring. The side of the air distribution disc facing the air distribution box and / or the bottom surface of the assembly groove is provided with an annular groove. The annular sealing ring is fitted in the annular groove.

[0010] In some embodiments, the pressing member is a pressing spring.

[0011] In some embodiments, the pressing spring is a plurality of pressing springs. The plurality of pressing springs correspond to at least part of the plurality of air inlet pipes one by one. The pressing spring is sleeved on the corresponding air inlet pipe.

[0012] In some embodiments, the air supply device of the combustor further comprises a hoop plate. The hoop plate connects the plurality of air outlet pipes to form an air outlet cover along the circumference of the air distribution box.

[0013] In some embodiments, the cross-sectional area of ​​the air outlet shroud gradually increases in the direction toward the interior of the housing.

[0014] In some embodiments, the air outlet hood is provided with a slag discharge plate, the slag discharge plate is connected to the air outlet pipe, and the adjusting rod is connected to the slag discharge plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the air supply device of a burner according to an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the air distribution plate of the air supply device for a burner according to an embodiment of the present invention.

[0017] Figure label:

[0018] 1. Housing, 2. Air distribution assembly, 21. Air distribution box, 22. Air outlet pipe, 23. Drive component, 3. Air supply assembly, 31. Air distribution plate, 311. Air distribution hole, 32. Air box, 33. Air inlet pipe, 34. Pressing component, 4. Adjusting component, 41. Adjusting rod, 42. Limiting component, 43. Slag discharge plate, 5. Annular sealing ring. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] like Figure 1 and Figure 2 As shown, the air supply device of the burner in this embodiment of the invention includes: an air distribution assembly 2, an air supply assembly 3, and an adjusting component 4.

[0021] Specifically, the burner has a shell 1, an assembly hole is arranged on the shell 1, an air distribution assembly 2 comprises an air distribution box 21 and a plurality of air outlet pipes 22, the air distribution box 21 is rotatably arranged at the assembly hole and partially arranged in the shell 1, the air distribution box 21 has a plurality of mounting holes arranged at a circumferential direction of the air distribution box 21 on a side of the air distribution box 21 facing the shell 1, the air distribution box 21 has an opening opposite to the mounting holes on a side of the air distribution box 21 away from the shell 1, the plurality of air outlet pipes 22 are arranged in the plurality of mounting holes and one end of each of the plurality of air outlet pipes 22 extends into the shell 1 and the other end of each of the plurality of air outlet pipes 22 is fitted in the air distribution box 21, an air supply assembly 3 comprises an air distribution disc 31 and an air box 32, the air distribution disc 31 is rotatably arranged at the opening, the air distribution disc 31 has a plurality of air distribution holes 311 arranged at a circumferential direction of the air distribution disc 31, the plurality of air distribution holes 311 are opposite to the plurality of air outlet pipes 22, the air box 32 is arranged on a side of the air distribution box 21 away from the shell 1, the air box 32 has a plurality of air inlet pipes 33 communicated with the air distribution holes 311, a pressing member 34 is arranged between the air distribution disc 31 and the air box 32, one end of the pressing member 34 abuts against the air distribution disc 31 and the other end of the pressing member 34 abuts against the air box 32; an adjusting member 4, the adjusting member 4 comprises an adjusting rod 41 and a limiting member 42, the adjusting rod 41 sequentially passes through the air box 32, the air distribution disc 31 and is connected with the air distribution box 21, the limiting member 42 is arranged on the adjusting rod 41 and abuts against a side of the air box 32 away from the air distribution disc 31, the limiting member 42 is movable along a length direction of the adjusting rod 41 and is self-locked on the adjusting rod 41 after the movement is completed.

[0022] It should be noted that in the rotary burner, the rotation of the combustion cone cooperates with the primary air of the air supply device to make the fuel in a fluidized combustion state, so that the fuel is fully burned. In order to ensure the safety of the equipment operation, the air supply device is usually fixedly installed and cannot rotate with the combustion cone, which leads to the problem of primary air loss at the contact position of the air supply device and the combustion cone, and the primary air cannot fully act on the fuel combustion, affecting the combustion efficiency. In the air supply device of the present application, the air supply assembly 3 is arranged outside the shell 1 as a non-rotating part, and the air distribution assembly 2 is rotatably matched inside the shell 1 as a rotating part, both of which are coaxially arranged on the same adjusting rod 41. The primary air generated by the air supply assembly 3 enters the burner shell 1 through the air distribution assembly 2. The specific primary air flow process is as follows: the primary air is introduced by the air box 32, flows into the air distribution box 21 through the air inlet pipe, the air distribution hole 311 and the opening, and is temporarily stored in the air distribution box 21. In this process, the air distribution disc 31 is always tightly attached to the air distribution box 21 under the action of the pressing piece 34, ensuring that the air supply assembly 3 does not separate from each other due to the rotation of the air distribution assembly 2. The air distribution hole 311 is always in communication with the opening of the air distribution box 21. When the air distribution hole 311 is rotated to the position opposite to the pipe opening of the air outlet pipe 22, the primary air in the air distribution box 21 flows into the shell 1 through the mounting hole and the air outlet pipe 22. Thus, the air supply assembly 3 of the present application can pass the primary air into the shell 1 under the working condition of the rotation of the air distribution assembly 2, and the air supply assembly 3 and the air distribution assembly 2 always maintain good sealing between them during the process. The primary air flows without loss. Compared with the traditional technology, the present application greatly reduces the leakage of primary air, improves the combustion efficiency, and at the same time, the present application can guide the primary air to all directions of the burner through the circumferentially distributed air outlet pipes, so that the primary air fully acts on the fuel combustion, improving the utilization rate of the primary air.

[0023] It can be understood that when the burner is initially operated or after long-term operation of the burner, the pressing piece 34 cannot make the air distribution disc 31 tightly attached to the air distribution box 21, and a large amount of primary air leaks, or when the air distribution assembly 2 and the air supply assembly 3 are too tightly connected, the air distribution disc 31 and the air distribution box 21 are worn out too quickly. At this time, the tightness of the pressing piece 34 can be adjusted by adjusting the position of the limiting piece 42 through the adjusting rod 41. For example, when there is leakage of primary air, the limiting piece 42 can be moved towards the position close to the air distribution box 21 through the adjusting rod 41. At this time, the limiting piece 42 drives the air box 32 to move close to the air distribution box 21, so that the pressing force of the pressing piece 34 on the air distribution disc 31 increases, and the air distribution disc 31 is more tightly attached to the air distribution box 21. When the leakage of primary air meets the operation requirements and the rotation between the air distribution disc 31 and the air distribution box 21 is not stuck, stop adjusting the limiting piece 42, and the limiting piece 42 is fixed at this position. When the air distribution disc 31 and the air distribution box 21 are worn out too quickly, the adjustment process is opposite to the above process. Thus, the air distribution assembly 2 and the air supply assembly 3 can operate in a suitable pressing working condition.

[0024] It should be noted that the air distribution hole 311 has a limiting clamping groove, and the air inlet pipe is matched in the limiting clamping groove through the limiting protrusion, so that the air inlet pipe has a certain range of movement, avoiding the air inlet pipe from extending into the air distribution box 21 to hinder the rotation of the air distribution box 21 or the air inlet pipe from being pulled out of the air distribution disc 31 during the adjustment of the adjusting rod 41.

[0025] It should be noted that the adjusting rod 41 has a limiting clamping groove and / or a limiting protrusion to clamp the air distribution box 21 on the adjusting rod 41, preventing the adjusting rod 41 from falling off.

[0026] It can be understood that the air distribution box 21 can be connected to the shell 1 through a roller bearing, and the air distribution assembly 2 has a driving member 23 for driving the rotation of the air distribution box 21, so that the rotation rate of the air distribution box 21 can be controlled.

[0027] According to the air supply device of the burner, the air distribution assembly includes an air distribution box and a plurality of air outlet pipes, the air distribution box is rotatably installed at the assembly hole of the shell, the air distribution box has a plurality of installation holes on the side facing the inside of the shell, the air distribution box has an opening opposite to the installation hole on the side outside the shell, the plurality of air outlet pipes are correspondingly arranged in the plurality of installation holes, the air supply assembly includes an air distribution disc and an air box, the air distribution disc is rotatably installed at the opening, and the air distribution disc has a plurality of air distribution holes opposite to the plurality of air outlet pipes, the air box has a plurality of air inlet pipes in communication with the air distribution holes, and a pressing member is arranged between the air box and the air distribution disc, the adjusting member includes an adjusting rod and a limiting member, the adjusting rod passes through the air box, the air distribution disc in sequence and is connected with the air distribution box, and the limiting member is movably arranged on the adjusting rod and abuts against the side of the air box away from the air distribution disc, so that the air supply assembly of the present application can pass the primary air into the shell under the working condition of the rotation of the air distribution assembly, and the air supply assembly and the air distribution assembly always maintain good sealing property in the process, the primary air is not damaged, the leakage of the primary air is greatly reduced, the utilization rate of the primary air is improved, and the circumferentially distributed air outlet pipes of the air supply assembly can guide the primary air to each direction in the shell, so that the primary air fully acts on the fuel combustion, the combustion efficiency is improved, and the position of the limiting member can be adjusted through the adjusting rod to adjust the tightness of the pressing member, so that the air distribution assembly and the air supply assembly are in a suitable pressing working condition, the leakage of the primary air is reduced, and the rotation of the air distribution assembly is smooth and not condensed.

[0028] Further, as shown in Figure 1 , the adjusting rod 41 is a threaded rod, and the limiting member 42 is a limiting nut.

[0029] In other words, the adjusting rod 41 can adjust the position of the limiting nut in the adjusting rod 41 by screwing in or out, when screwing in, the limiting nut drives the bellow 32 to move towards the air distribution disc 31, when screwing out, the bellow 32 is pushed by the pressing member 34 to move away from the air distribution disc 31, thus realizing the position adjustment of the bellow 32 relative to the adjusting rod 41.

[0030] Further, as shown in Figure 1 , the outer peripheral edge of the opening has an assembly groove recessed towards the housing 1, and the air distribution disc 31 is embedded in the assembly groove.

[0031] It can be understood that when the air distribution disc 21 rotates, the air distribution disc 21 is always pressed in the assembly groove under the action of the pressing member 34, at this time, the assembly groove can be used as a limiting structure to avoid the air distribution disc 31 and the air distribution disc 21 from being separated from each other, thereby improving the tightness of the assembly of the air distribution mechanism and the air supply mechanism.

[0032] It should be noted that the assembly groove and the air distribution disc 31 are made of wear-resistant elements, and lubricating oil should be applied between the contact surfaces of the assembly groove and the air distribution disc 31, thereby reducing the mutual wear of the assembly groove and the air distribution disc 31 and improving the durability of the parts.

[0033] Further, as shown in Figure 1 and Figure 2 , a sealing element is arranged between the air distribution disc 31 and the assembly groove, thereby further improving the sealing of the assembly.

[0034] Further, as shown in Figure 1 and Figure 2 , the sealing element is a ring-shaped sealing ring 5, and the side surface of the air distribution disc 31 towards the air distribution disc 21 and / or the bottom surface of the assembly groove is provided with a ring-shaped groove, and the ring-shaped sealing ring 5 is fitted in the ring-shaped groove.

[0035] It can be understood that the air distribution holes 311 are arranged in a ring shape on the air distribution disc 31, and the ring-shaped sealing ring 5 can be arranged on the outer ring edge and the inner ring edge formed by the air distribution holes 311, and the air distribution holes 311 can jointly prevent the leakage of primary air from the inner and outer ring edges.

[0036] Further, as shown in Figure 1 , the pressing member 34 is a pressing spring.

[0037] It can be understood that when the bellow 32 moves towards the air distribution disc 21, the degree of spring compression increases, and the pressure of the spring acting on the air distribution disc 31 also increases, thereby driving the air distribution disc 31 to tightly contact the air distribution disc 21, and vice versa, thereby reducing the compression degree of the air distribution disc 31 and the air distribution disc 21 and reducing the wear.

[0038] Further, as shown in Figure 1 andFigure 2 As shown, the compression springs are multiple, and the multiple compression springs correspond to at least part of the multiple air inlet pipes 33 one by one, and the compression springs are sleeved on the corresponding air inlet pipes 33.

[0039] It can be understood that the compression springs sleeved on the air inlet pipes 33 can form a protection structure for the air inlet pipes 33, avoiding the air inlet pipes 33 from being directly subjected to collision or bending, and at the same time, the compression springs are arranged circumferentially along the air bellow 32, so that the air distribution disc 31 is uniformly stressed in each direction, avoiding the stress concentration phenomenon, leading to the brittle failure of the air distribution disc 31 or the air bellow 21.

[0040] Further, the air supply device of the burner further comprises a hoop plate (not shown), and the hoop plate sequentially connects the multiple air outlet pipes 22 along the circumference of the air bellow 21 to form an air outlet cover.

[0041] It can be understood that the hoop plate cooperates with the air outlet pipe 22 to form a mesh frame-shaped air outlet cover, and at this time, the air outlet cover can be used as a combustion cone of the burner to hold fuel, and when the burner works, the combustion cone forms a rotating burner head, and at the same time, the combustion cone can be circumferentially supplied with primary air, so that the fuel in the air outlet cover can be burned in a fluidized state, improving the combustion efficiency, and in addition, the hoop plate can improve the structural strength of the air outlet pipe 22, preventing the air outlet pipe 22 from being bent or broken under the impact of fuel.

[0042] Optionally, the air outlet pipe can be provided with multiple air outlet holes at intervals along the length direction thereof, for more uniformly supplying primary air into the burner.

[0043] Further, as shown in Figure 1 The cross-sectional area of the air outlet cover gradually increases in the direction towards the inside of the shell 1, so that the opening of the air outlet cover increases, which is beneficial to the fuel falling into the air outlet cover from the fuel supply mechanism for combustion.

[0044] Further, as shown in Figure 1 The air outlet cover is provided with a slag discharge disc 43, the slag discharge disc 43 is connected with the air outlet pipe 22, and the adjusting rod 41 is connected with the slag discharge disc 43.

[0045] It can be understood that the slag discharge disc 43 can be rotated by operating the handle of the adjusting rod 41, so as to drive the air outlet cover to rotate quickly and remove the combustion residues attached to the slag discharge disc 43.

[0046] Optionally, the slag discharge disc 43 can be rotatably connected with the air outlet pipe 22 through a rolling bearing, so that the slag discharge disc 43 can be rotated by the adjusting rod 41 to disturb the combustion residues in the air outlet cover.

[0047] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0048] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated thereby. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0049] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise explicitly limited.

[0050] For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0051] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.

[0052] In this disclosure, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material, or characteristic is included in at least one embodiment or example of the present disclosure. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily referred to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the terminology "comprising" is used in the disclosure as comprising but not limited to, that is, it is open-ended and does not exclude the presence of additional features, structures, materials, or characteristics.

[0053] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above-described embodiments are exemplary, and are not to be interpreted as limiting the present disclosure, and the ordinary skilled in the art can make changes, modifications, replacements, and variations to the above-described embodiments within the scope of the present disclosure.

Claims

1. An air supply device for a burner, characterized in that, The burner has a housing with mounting holes, and the air supply device includes: An air distribution assembly includes an air distribution box and multiple air outlet pipes. The air distribution box is rotatably mounted at the mounting hole and partially located inside the housing. The side of the air distribution box facing the inside of the housing has multiple mounting holes arranged circumferentially therebetween. The side of the air distribution box outside the housing has an opening opposite to the mounting holes. The multiple air outlet pipes are correspondingly inserted into the multiple mounting holes, with one end extending into the housing and the other end fitting into the air distribution box. An air supply assembly includes an air distribution plate and an air box. The air distribution plate is rotatably mounted at the opening and has a plurality of air distribution holes arranged at intervals along its circumference. The plurality of air distribution holes are opposite to a plurality of air outlet pipes. The air box is located on the side of the air distribution box away from the housing and has a plurality of air inlet pipes communicating with the air distribution holes. A clamping member is provided between the air box and the air distribution plate. One end of the clamping member abuts against the air distribution plate, and the other end abuts against the air box. An adjusting component includes an adjusting rod and a limiting component. The adjusting rod passes through the air box and the air distribution plate in sequence and is connected to the air distribution box. The limiting component is provided on the adjusting rod and abuts against the side of the air box away from the air distribution plate. The limiting component is movable along the length direction of the adjusting rod and can self-lock onto the adjusting rod after the movement is completed.

2. The air supply device for the burner according to claim 1, characterized in that, The adjusting rod is a threaded rod, and the limiting component is a limiting nut.

3. The air supply device for the burner according to claim 1, characterized in that, The outer peripheral edge of the opening has a recessed mounting groove facing the housing, and the air distribution plate is embedded in the mounting groove.

4. The air supply device for the burner according to claim 3, characterized in that, A sealing element is provided between the air distribution plate and the assembly groove.

5. The air supply device for the burner according to claim 4, characterized in that, The sealing element is an annular sealing ring. The side of the air distribution plate facing the air distribution box and / or the bottom surface of the assembly groove are provided with an annular groove, and the annular sealing ring fits into the annular groove.

6. The air supply device for the burner according to any one of claims 1-5, characterized in that, The clamping component is a clamping spring.

7. The air supply device for the burner according to claim 6, characterized in that, There are multiple compression springs, and each of the multiple compression springs corresponds to at least a portion of the multiple air intake pipes. The compression springs are sleeved on the corresponding air intake pipes.

8. The air supply device for the burner according to any one of claims 1-5, characterized in that, It also includes a hoop plate, which connects multiple air outlet pipes sequentially along the circumference of the air distribution box to form an air outlet hood.

9. The air supply device for the burner according to claim 8, characterized in that, The cross-sectional area of ​​the air outlet hood gradually increases in the direction toward the inside of the housing.

10. The air supply device for the burner according to claim 8, characterized in that, The air outlet hood is equipped with a slag discharge plate, which is connected to the air outlet pipe, and the adjusting rod is connected to the slag discharge plate.

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