A limiting component and a soot blowing device

Abstract

This application relates to the field of boiler cleaning technology, and more particularly to a limiting component and a soot blowing device. The limiting component includes A abutment members and a rotating connecting ring, where A is an integer greater than or equal to 2, and the A abutment members are evenly distributed circumferentially. Each abutment member includes an abutment block and a telescopic part. One end of the telescopic part is connected to the abutment block, and the other end is connected to the outer circumferential surface of the rotating connecting ring. The rotating connecting ring allows the soot blowing pipe to pass through, and its inner wall is rotatably connected to the soot blowing pipe. The abutment block abuts against the inner wall of the boiler inlet, and the telescopic part can drive the abutment block to move radially along the boiler inlet. During the installation phase of the soot blowing device, the telescopic part drives the abutment block to move radially along the boiler inlet, adapting to boiler inlets of different sizes. Once in operation, the telescopic part ensures the abutment block tightly abuts against the inner wall of the boiler inlet. Combined with the evenly distributed circumferential distribution of the abutment members, this provides multi-directional stable limiting of the soot blowing pipe, restricting its swaying from multiple directions and reducing the amplitude of vibration at the source.

Description

Technical Field

[0001] This application relates to the field of boiler cleaning technology, and in particular to a limiting component and a soot blowing device. Background Technology

[0002] In industrial production, boilers, as crucial energy conversion equipment, are widely used in various industries such as power, chemical, and metallurgy. During long-term operation, dust, slag, and other substances inevitably accumulate on the inner walls of boilers. These deposits significantly reduce the boiler's heat exchange efficiency, increase energy consumption, and may even lead to safety hazards such as internal wall corrosion and overheating. To address this problem, boiler soot blowing devices have emerged. They remove accumulated ash from the inner walls using specific methods, ensuring the stable and efficient operation of the boiler and serving as an indispensable key auxiliary device in boiler systems. The operating principle of a boiler soot blowing device is to use a medium (such as steam or compressed air) to spray high-speed airflow onto the inner wall of the boiler through a soot blowing pipe. This high-speed airflow can impact and scour the dust and slag accumulated on the inner wall, causing the ash to detach from the inner wall and be carried away by the flue gas, thereby restoring the cleanliness of the inner wall and maintaining the normal thermal efficiency of the boiler. However, due to the significant reaction force generated during the injection of the sootblowing medium, coupled with the turbulence of flue gas flow inside the boiler, the sootblowing pipe often exhibits noticeable vibration. This vibration leads to unstable injection direction, making it difficult to accurately target the ash-accumulated area and affecting the sootblowing effect. When targeted sootblowing is required at fixed locations, the vibration prevents the sootblower from maintaining the preset blowing direction, hindering continuous and concentrated soot removal operations. This results in incomplete ash removal and impacts the overall operating efficiency of the boiler. In summary, existing boiler soot blowing devices suffer from technical problems such as unstable soot blowing due to vibration and inability to effectively fix the soot blowing position during operation, making it difficult to meet the actual needs of boilers for efficient and stable soot cleaning. Utility Model Content

[0003] This utility model provides a limiting component and a soot blowing device to solve the technical problems of unstable soot blowing and inability to effectively fix the soot blowing position caused by vibration in existing boiler soot blowing devices during operation. To achieve the above objectives, the first aspect of this utility model provides a limiting component, comprising: A connecting component and a rotating connecting ring; A is an integer greater than or equal to 2, and the A abutment parts are evenly distributed in a circle. The rotating connecting ring is used for the soot blowing pipe to pass through, and the inner wall of the rotating connecting ring is used for rotatable connection with the soot blowing pipe; The abutting component includes an abutting block and a telescopic part, one end of which is connected to the abutting block and the other end of which is connected to the outer circumferential surface of the rotating connecting ring; The end face of the abutment block away from the telescopic part is used to abut against the inner wall of the boiler inlet; The telescopic part is used to drive the abutment block to move radially along the boiler inlet.

[0004] The first possible implementation of the first aspect also includes: A curved section, a second ring, and a third ring; The second ring and the third ring are collinear in axis and are spaced apart from each other. The inner circumferential surfaces of the second and third rings are connected to the outer circumferential surface of the rotating connecting ring, forming a ring space; A arc-shaped portion is embedded in the annular space and is evenly distributed around the circumference, creating A radially extending holes; The telescopic part is an electrically operated telescopic pole; The electric telescopic rod is installed in the hole, and the movable end is adapted to the hole. Both the second and third rings have axially extending and opposing arc-shaped through grooves on their radial sides. The arc-shaped through-slot extends from the inside out. The active end is equipped with a limiting pin that is inserted into the arc-shaped through groove.

[0005] Combining the first possible implementation of the first aspect, the second possible implementation of the first aspect is as follows: The movable end has a limiting protrusion on the side near the arc-shaped part; The arc-shaped portion is provided with a slide rail that is adapted to the limiting protrusion and extends radially.

[0006] The second aspect of this utility model provides a soot blowing device comprising: Such as any of the limiting components and soot blowing components in the first aspect; The soot blowing assembly includes a soot blowing pipe; The soot blowing pipe has an air outlet at one axial end and is used to connect to an air source at the other axial end. The rotating connecting ring is fitted between the two axial ends of the soot blowing pipe.

[0007] The first possible implementation of the second aspect is as follows: The soot blowing assembly also includes a soot sweeping component; The dust removal component includes a first connecting plate and a brush section; One radial end of the first connecting plate is connected to the soot blowing pipe, and the other radial end is connected to the brush section; The axial position of the brush part coincides with the axial position of the air outlet, and there is a gap between the axial positions of the brush part and the axial position of the air outlet.

[0008] Combining the first possible implementation of the second aspect, the second possible implementation of the second aspect is as follows: The soot blowing assembly also includes a first roller; The first roller is connected to the first connecting plate, and its rotation axis is parallel to the axis of the blowing tube; the first roller is located at the axial end of the brush section.

[0009] The third possible implementation of the second aspect is as follows: It also includes adjustment components; The adjustment assembly includes a rotation unit; The rotating unit includes a first driving element, a first gear, and a second gear; The second gear has a first circular through hole at its center; The soot blowing pipe is inserted into the first circular through hole; The first driving member is connected to the first gear and is used to drive the first gear to rotate; the second gear meshes with the first gear; The rotating connecting ring is located between the air outlet and the second gear.

[0010] Combining the third possible implementation of the second aspect, the fourth possible implementation of the second aspect is: The adjustment assembly also includes a moving unit; The moving unit includes a sliding base, a threaded rod, and a second driving component; The axis of the threaded rod is parallel to the axis of the soot blowing pipe; The sliding base includes a fixed part and a sliding part, and the fixed part is provided with a second circular through hole; The axial end of the soot blowing pipe, which is used to connect to the air source, passes through the second circular through hole and is rotatably connected to the fixing part. The sliding part has a threaded through hole along the axial direction of the soot blowing pipe, and the threaded rod passes through the threaded through hole; The second driving component is connected to the threaded rod and is used to drive the threaded rod to rotate.

[0011] The fifth possible implementation of the second aspect is: Sealing cover; The sealing cover has stepped circular through holes; The diameter of the large-diameter section of the stepped circular through-hole is larger than the diameter of the boiler inlet, while the small-diameter section is used for the soot blowing pipe to pass through. The larger aperture section is closer to the limiting component than the smaller aperture section.

[0012] The sixth possible implementation of the second aspect is: Positioning components; The positioning assembly includes a housing and a second roller; The second roller and the limiting component are respectively located on two opposite surfaces of the housing.

[0013] The technical solution provided in this application may include the following beneficial effects: The limiting component provided in this application includes A abutment members and a rotating connecting ring, where A is an integer greater than or equal to 2, and the A abutment members are evenly distributed circumferentially. Each abutment member includes an abutment block and a telescopic part. One end of the telescopic part is connected to the abutment block, and the other end is connected to the outer circumferential surface of the rotating connecting ring. The rotating connecting ring allows the sootblowing pipe to pass through, and its inner wall is rotatably connected to the sootblowing pipe. The abutment block abuts against the inner wall of the boiler inlet, and the telescopic part can drive the abutment block to move radially along the boiler inlet. During the installation phase of the sootblowing device, the telescopic part drives the abutment block to move radially along the boiler inlet, adapting to boiler inlets of different sizes. Once in operation, the telescopic part ensures the abutment block tightly abuts against the inner wall of the boiler inlet. Combined with the evenly distributed circumferential distribution of the abutment members, this provides multi-directional stable limiting of the sootblowing pipe, restricting its swaying from multiple directions and reducing vibration amplitude at the source. Meanwhile, the rotating connection design between the rotating connecting ring and the sootblowing pipe ensures that the sootblowing pipe can still rotate flexibly to adjust the sootblowing direction while being limited, and also prevents the contact block from rotating synchronously when the sootblowing pipe rotates. Under the action of the limiting component, the sootblowing pipe can maintain a relatively stable state, ensuring that the spraying direction of the sootblowing medium is aligned with the preset ash accumulation area, avoiding deviation of the spraying direction due to vibration, and ensuring that the sootblowing medium is concentrated and stably sprayed onto the target area, enhancing the impact and flushing effect on the ash accumulation. This solves the technical problem in existing devices where sootblowing pipe vibration leads to unstable sootblowing and inability to effectively fix the sootblowing position, thus improving the efficiency and reliability of the cleaning operation.

[0014] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0015] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0016] Figure 1 This is a schematic diagram of the structure of a soot blowing device shown in an embodiment of this application; Figure 2 This is a partial structural schematic diagram of a soot blowing device shown in an embodiment of this application; Figure 3 This is a partial structural schematic diagram of a soot blowing device shown in an embodiment of this application; Figure 4 This is a partial structural schematic diagram of a soot blowing device shown in an embodiment of this application; Figure 5 This is a partial structural schematic diagram of a soot blowing device shown in an embodiment of this application; Figure 6 This is a partial structural schematic diagram of a soot blowing device shown in an embodiment of this application; Figure 7 This is a partial structural schematic diagram of a soot blowing device shown in an embodiment of this application; Figure 8 This is a schematic diagram of the structure of a limiting component shown in an embodiment of this application; Among them, 10-limiting component, 10.1-abutting part, 10.11-abutting block, 10.12-telescopic part, 10.2-rotating connecting ring, 10.3-arc-shaped part, 10.4-second ring, 10.8-arc-shaped through groove, 10.9-limiting pin, 10.10-limiting protrusion, 20-soot blowing component, 20.1-soot blowing pipe, 20.11-air outlet, 20.2-soot sweeping component, 20.21-First connecting plate, 20.22-Brush part, 20.3-First roller, 30.11-First driving component, 30.12-First gear, 30.13-Second gear, 30.22-Threaded rod, 30.24-Fixing part, 30.25-Sliding part, 40-Sealing cover, 50.1-Box body, 50.2-Second roller, 50.3-Crossbar, 70-Supporting component. Detailed Implementation

[0017] Preferred embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0018] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0019] 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.

[0020] In the description of this application, it should be understood that the terms "thickness", "upper", "lower", "front", "rear", "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.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Example

[0022] Please see Figures 1 to 8 This application provides a limiting component 10, including: A abutment members 10.1 and a rotating connecting ring 10.2; A is an integer greater than or equal to 2, and the A abutment members 10.1 are evenly distributed circumferentially; the rotating connecting ring 10.2 is used for soot blowing pipe 20.1 to pass through, and the inner wall of the rotating connecting ring 10.2 is used for rotatably connecting with soot blowing pipe 20.1; the abutment member 10.1 includes an abutment block 10.11 and a telescopic part 10.12, one end of the telescopic part 10.12 is connected to the abutment block 10.11, and the other end is connected to the outer circumferential surface of the rotating connecting ring 10.2; the end face of the abutment block 10.11 away from the telescopic part 10.12 is used to abut against the inner wall of the boiler opening; the telescopic part 10.12 is used to drive the abutment block 10.11 to move radially along the boiler opening.

[0023] It should be noted that: The abutment component 10.1 includes an abutment block 10.11 and a telescopic part 10.12, and A abutment components 10.1 are evenly distributed circumferentially (A is an integer ≥ 2). This evenly distributed circumferential structure can form a balanced supporting force from multiple directions on the inner wall of the boiler opening, avoiding tilting or shaking of the sootblowing pipe 20.1 due to uneven force, and providing stable radial constraint for the sootblowing pipe 20.1. The end face of the abutment block 10.11 away from the telescopic part 10.12 directly contacts the inner wall of the boiler opening, forming a rigid support through physical contact. The shaking force of the sootblowing pipe 20.1 is transmitted through the telescopic part 10.12 and converted into a supporting force on the inner wall of the boiler opening. With the help of the structural strength of the boiler opening, the reaction force is applied to the sootblowing pipe 20.1, limiting the radial displacement of the sootblowing pipe 20.1 under the reaction force of the jet or flue gas disturbance, ensuring that the sootblowing pipe 20.1 maintains a relatively stable posture. The telescopic part 10.12 connects the abutment block 10.11 to the outer circumferential surface of the rotating connecting ring 10.2. Its function is to drive the abutment block 10.11 to move radially along the boiler opening: when the boiler opening size is large, the telescopic part 10.12 extends, pushing the abutment block 10.11 away from the rotating connecting ring 10.2 until the abutment block 10.11 is in close contact with the inner wall of the boiler opening; when the boiler opening size is small, the telescopic part 10.12 shortens, pulling the abutment block 10.11 closer to the rotating connecting ring 10.2. Then, when the soot blowing pipe 20.1 is placed into the boiler opening, the telescopic part 10.12 is extended again, which can also achieve stable contact. Through the adjustment of the telescopic part 10.12, the limiting component 10 can flexibly adapt to various specifications of boiler openings, ensuring that reliable limiting support is provided for the soot blowing pipe 20.1 under different working conditions, reducing the impact of vibration on the stability of soot blowing.

[0024] The rotating connecting ring 10.2 allows the soot blowing pipe 20.1 to pass through it, and the inner wall of the rotating connecting ring 10.2 is used for rotatable connection with the soot blowing pipe 20.1. This structure allows the soot blowing pipe 20.1 to rotate relative to the rotating connecting ring 10.2, providing a basis for adjusting the soot blowing direction of the soot blowing pipe 20.1. This facilitates the soot blowing pipe 20.1 to blow away ash accumulation areas at different locations on the inner wall of the boiler, and avoids the abutment block 10.11 from rotating synchronously when the soot blowing pipe 20.1 rotates.

[0025] Beneficial effects: The limiting component 10 provided in this application includes A abutment members 10.1 and a rotating connecting ring 10.2, where A is an integer greater than or equal to 2, and the A abutment members 10.1 are evenly distributed circumferentially. The abutment member 10.1 includes an abutment block 10.11 and a telescopic part 10.12. One end of the telescopic part 10.12 is connected to the abutment block 10.11, and the other end is connected to the outer circumferential surface of the rotating connecting ring 10.2. The rotating connecting ring 10.2 allows the soot blowing pipe 20.1 to pass through, and its inner wall is rotatably connected to the soot blowing pipe 20.1. The abutment block 10.11 is used to abut against the inner wall of the boiler opening, and the telescopic part 10.12 can drive the abutment block 10.11 to move radially along the boiler opening. During the installation phase of the soot blowing device, the telescopic part 10.12 drives the abutment block 10.11 to move radially along the boiler inlet, adapting to boiler inlets of different sizes. Once in operation, the telescopic part 10.12 ensures the abutment block 10.11 tightly abuts against the inner wall of the boiler inlet. Furthermore, the evenly distributed circumferential distribution of the abutment blocks 10.1 provides multi-directional stable restraint on the soot blowing pipe 20.1, limiting its swaying from multiple directions and reducing vibration at its source. Simultaneously, the rotating connection design between the rotating connecting ring 10.2 and the soot blowing pipe 20.1 ensures that the soot blowing pipe 20.1 can still rotate flexibly to adjust the soot blowing direction while being restrained, while also preventing the abutment block 10.11 from rotating synchronously when the soot blowing pipe 20.1 rotates. Under the action of the limiting component 10, the soot blowing pipe 20.1 can maintain a relatively stable state, ensuring that the spraying direction of the soot blowing medium is aligned with the preset ash accumulation area, avoiding deviation of the spraying direction due to shaking, ensuring that the soot blowing medium is concentrated and stably sprayed to the target area, enhancing the impact and scouring effect on the ash accumulation, solving the technical problem in the existing device that the soot blowing pipe 20.1 shakes, causing unstable soot blowing and unable to effectively fix the soot blowing position, and improving the efficiency and reliability of the dust removal operation.

[0026] Specifically, the movement trajectory of the movable end of the telescopic part 10.12 lacks control. Especially when the soot blowing tube 20.1 rotates, it is prone to additional displacement or shaking, which will cause the abutment block 10.11 to move irregularly and weaken the limiting effect. To solve the above technical problems, an A-shaped arc portion 10.3, a second ring 10.4, and a third ring are added to the limiting component; the second ring 10.4 and the third ring are collinear and spaced apart; the inner circumferential surfaces of the second ring 10.4 and the third ring are connected to the outer circumferential surface of the rotating connecting ring 10.2, forming a circular space; the A-shaped arc portion 10.3 is embedded in the circular space and is evenly distributed circumferentially, creating A radially extending holes; the telescopic part 10.12 is an electric telescopic rod; the electric telescopic rod is installed in the holes, and the movable end is adapted to the holes; the radial sides of the second ring 10.4 and the third ring are each provided with an axially extending and opposite arc-shaped through groove 10.8; the extension trajectory of the arc-shaped through groove 10.8 expands from the inside to the outside; a limiting pin 10.9 is provided on the movable end and inserted into the arc-shaped through groove 10.8. Thus, by adding A arc-shaped portions 10.3, a second ring 10.4, and a third ring, the second ring 10.4 and the third ring are connected at intervals to each other on the outer periphery of the rotating connecting ring 10.2, forming a circular space. The arc-shaped portions 10.3 are embedded in this space and spaced out with holes. The telescopic portion 10.12 is preferably an electric telescopic rod and is installed in the holes, providing a stable installation space and radial guidance for the electric telescopic rod, limiting its offset and swaying. At the same time, arc-shaped through grooves 10.8 extending from the inside to the outside are opened on the radial sides of the second ring 10.4 and the third ring. The movable end of the telescopic portion is provided with a limiting pin 10.9 embedded in the arc-shaped through groove 10.8, realizing precise control and limiting of the movement trajectory of the movable end, ensuring that the abutment block 10.11 moves stably along the preset trajectory. In this embodiment, combined with the attached... Figure 7 The annular structure with protrusions on the left is a limiting component 10. The limiting component 10 has a through hole in the middle, through which the soot blowing pipe 20.1 passes. (See attached diagram.) Figure 8 The six arc-shaped blocks evenly surrounding the annular structure are abutment blocks 10.11. The abutment blocks 10.11 are radially connected to the annular structure via telescopic parts 10.12, which are inserted into evenly distributed gaps on the annular structure. The surface of the annular structure has evenly distributed arc-shaped through grooves 10.8 extending from the inside out. The telescopic parts 10.12 are provided with limiting pins 10.9, which are inserted into the arc-shaped through grooves 10.8.

[0027] Specifically, when the sootblowing pipe 20.1 is subjected to axial force (such as the reaction force of the sootblowing medium injection or the axial impact generated by flue gas disturbance), axial relative sliding easily occurs between the telescopic part 10.12 and the arc-shaped part 10.3. This axial sliding causes the limiting position of the abutment block 10.11 to shift, making it unable to stably hold against the inner wall of the boiler inlet, thus causing the sootblowing pipe 20.1 to shake and affecting the sootblowing stability. To solve the above technical problem, a limiting protrusion 10.10 is provided on the side of the movable end near the arc-shaped part 10.3; the arc-shaped part 10.3 is provided with a slide rail that is adapted to the limiting protrusion 10.10 and extends radially. In this way, the matching meshing structure of the limiting protrusion 10.10 and the slide rail can form a mechanical lock in the axial direction, effectively preventing radial relative sliding between the telescopic part 10.12 and the arc-shaped part 10.3. Once the abutment block 10.11 is adjusted to the appropriate position, the limiting protrusion 10.10 engages tightly with the slide rail, providing a stable constraint on their relative positions. This ensures that the abutment block 10.11 maintains a stable limiting state under axial force, thereby reliably limiting the shaking of the sootblowing pipe 20.1 and guaranteeing the sootblowing effect. (See attached...) Figure 8 In this embodiment, rectangular protrusions are provided on the left and right sides of the telescopic part 10.12 (corresponding to the movable end of the electric telescopic rod and other structures). These rectangular protrusions are the limiting protrusions 10.10. Each arc-shaped part 10.3 has a slide rail (not shown in the figure) that is adapted to the rectangular protrusion and extends radially at both ends. The limiting protrusions 10.10 are embedded in the corresponding slide rails. Example

[0028] The limiting component 10 is mainly used to limit the soot blowing pipe 20.1 and reduce its vibration, but this component alone cannot complete the function of spraying soot blowing medium into the boiler to remove accumulated ash. Therefore, this embodiment also provides a soot blowing device, including: the limiting component 10 as provided in embodiment 1 and the soot blowing component 20; the soot blowing component 20 includes a soot blowing pipe 20.1; an air outlet 20.11 is opened at one axial end of the soot blowing pipe 20.1, and the other axial end is used to connect to an air source; a rotating connecting ring 10.2 is sleeved between the two axial ends of the soot blowing pipe 20.1. Thus, the soot blowing assembly 20 has an air outlet 20.11 at one axial end of the soot blowing pipe 20.1 for spraying soot blowing medium, and the other axial end is connected to an air source to obtain the soot blowing medium. A rotating connecting ring 10.2 is fitted between the two axial ends of the soot blowing pipe 20.1, allowing the limiting assembly 10 to limit the soot blowing pipe 20.1 without affecting the soot blowing operation of the soot blowing pipe 20.1 spraying the medium through the air outlet 20.11, thereby constituting a complete device that can be practically used to remove boiler ash. In this embodiment, combined with the attached... Figure 2 The tubular structure at the top of the image is the sootblowing pipe 20.1. Air outlets 20.11 are located on both the upper and lower sides of its rightmost end. The leftmost end of the sootblowing pipe 20.1 is used to connect to an air source (not shown in the image). (See attached image.) Figure 2 and attached Figure 7 The limiting component 10 (corresponding to the ring structure with protrusions) is located on the left side of the air outlet 20.11 and is sleeved on the soot blowing pipe 20.1.

[0029] Specifically, the soot blowing device mainly removes accumulated ash by spraying high-speed airflow (soot blowing medium) through the air outlet 20.11 of the soot blowing pipe 20.1. However, for some coke residues that have hardened due to long-term adhesion or ash with strong adhesion, the impact and scouring action of the airflow alone is often insufficient to completely remove them, leaving some ash residue and affecting the boiler's heat exchange efficiency. To solve this technical problem, the soot blowing assembly 20 also includes a sweeping component 20.2; the sweeping component 20.2 includes a first connecting plate 20.21 and a brush part 20.22; one radial end of the first connecting plate 20.21 is connected to the soot blowing pipe 20.1, and the other radial end is connected to the brush part 20.22; the axial position of the brush part 20.22 coincides with the axial position of the air outlet 20.11, and there is a gap between the axial positions of the brush part 20.22 and the axial position of the air outlet 20.11. Thus, while the sootblowing pipe 20.1 is spraying airflow, the brush section 20.22 can directly contact the inner wall of the boiler, wiping and peeling off the firmly attached ash or slag through physical cleaning. The combination of airflow spraying and brush cleaning not only utilizes high-speed airflow to loosen the ash but also removes stubborn deposits through the brush, thereby improving the thoroughness of soot removal. Figure 7 In this embodiment, an air outlet 20.11 is provided in the middle of the right side, and first connecting plates 20.21 (i.e., the block-shaped structure next to the air outlet 20.11) are connected to both sides of the air outlet 20.11. The top of the upper first connecting plate 20.21 is provided with a brush part 20.22, and the bottom of the lower first connecting plate 20.21 is provided with a brush part 20.22. The brush parts 20.22 are densely distributed in an array on the corresponding connecting plates.

[0030] Specifically, the continuous friction of the brush section 20.22 increases the resistance to movement of the sootblowing tube 20.1, affecting the flexibility of adjustment. To solve the above technical problem, the sootblowing assembly 20 also includes a first roller 20.3; the first roller 20.3 is connected to the first connecting plate 20.21, and its rotation axis is parallel to the axis of the sootblowing tube 20.1; the first roller 20.3 is located at the axial end of the brush section 20.22. Thus, by contacting the inner wall of the boiler, the first roller 20.3 rolls along the inner wall when the sootblowing tube 20.1 moves, converting the sliding friction between the brush section 20.22 and the inner wall into rolling friction of the roller, significantly reducing the moving resistance and making the position adjustment of the sootblowing tube 20.1 smoother. (See attached diagram.) Figure 3 In this embodiment, first rollers 20.3 are symmetrically installed at the corners on the left and right sides of the image (i.e., at the corners of the left and right ends of the structure in the image).

[0031] Specifically, the blowing direction of the sootblowing pipe 20.1 is relatively fixed, and it can only clean a fixed area during the sootblowing process, resulting in limited cleaning coverage and difficulty in completely removing ash accumulation in different locations on the boiler's inner wall. To solve the above technical problems, an adjustment component is also included. The adjustment component includes a rotating unit, which comprises a first driving element 30.11, a first gear 30.12, and a second gear 30.13. The second gear 30.13 has a first circular through hole at its center. The sootblowing pipe 20.1 passes through the first circular through hole. The first driving element 30.11 is connected to the first gear 30.12 and is used to drive the first gear 30.12 to rotate. The second gear 30.13 meshes with the first gear 30.12. A rotating connecting ring 10.2 is located between the air outlet 20.11 and the second gear 30.13. Thus, through the rotating unit, the sootblowing pipe 20.1 can be driven to rotate during the sootblowing process, allowing the air outlet 20.11 of the sootblowing pipe 20.1 to change its spray direction around its own axis, thereby expanding the cleaning coverage. Combined with appendix Figure 4 In this embodiment, the motor located at the front end is the first drive unit 30.11, and its right end is connected to the first gear 30.12. The rear side of the first gear 30.12 is connected to the second gear 30.13, and the two mesh and transmit power in a front-to-back direction. The second gear 30.13 has a circular hole in the middle, through which the soot blowing pipe 20.1 passes. When the first gear 30.12 rotates, it drives the second gear 30.13 to rotate through meshing transmission, and the second gear 30.13 then drives the soot blowing pipe 20.1 passing through its middle to rotate.

[0032] Specifically, although the soot blowing pipe 20.1 achieves stable positioning through the protrusion of the limiting component, the axial position of the soot blowing pipe 20.1 is relatively fixed. This means that for ash accumulation areas of different depths in the boiler, the soot blowing pipe 20.1 may not be able to be accurately cleaned due to insufficient or excessive insertion, thus affecting the ash removal effect. To address the aforementioned technical issues, the adjustment assembly further includes a moving unit; the moving unit comprises a sliding base, a threaded rod 30.22, and a second driving member; the axis of the threaded rod 30.22 is parallel to the axis of the soot blowing pipe 20.1; the sliding base includes a fixed part 30.24 and a sliding part 30.25, and the fixed part 30.24 has a second circular through hole; the axial end of the soot blowing pipe 20.1, used for connecting to the air source, passes through the second circular through hole and is rotatably connected to the fixed part 30.24; the sliding part 30.25 has a threaded through hole along the axial direction of the soot blowing pipe 20.1, and the threaded rod 30.22 passes through the threaded through hole; the second driving member is connected to the threaded rod 30.22 and is used to drive the threaded rod 30.22 to rotate. Thus, when it is necessary to adjust the depth of the sootblowing pipe 20.1 inserted into the boiler, the second drive unit is activated and drives the threaded rod 30.22 to rotate. Since the threaded rod 30.22 engages with the threaded through-hole of the sliding part 30.25, the rotation of the threaded rod 30.22 is converted into the axial movement of the sliding part 30.25 along the sootblowing pipe 20.1, thereby causing the sootblowing pipe 20.1, which passes through the fixed part 30.24, to move synchronously along the axial direction. This allows for flexible adjustment of the insertion depth of the sootblowing pipe 20.1 to meet the cleaning needs of different depths of ash accumulation areas within the boiler. (See attached diagram.) Figure 4 In this embodiment, a groove is provided in the middle of the support surface of the housing 50.1, and a threaded rod 30.22 is disposed in the groove. The plate-like structure through which the threaded rod 30.22 passes is a sliding part 30.25. Two fixing parts 30.24 are vertically mounted on the upper end of the sliding part 30.25. A circular hole is opened in the middle of the fixing part 30.24, and the soot blowing pipe 20.1 passes through the circular hole. (See attached diagram.) Figure 4 It should be noted that when the threaded rod 30.22 rotates, it drives the sliding part 30.25 to move left and right, which in turn drives the fixed part 30.24 to move synchronously. Since the soot blowing pipe 20.1 passes through the fixed part 30.24, the soot blowing pipe 20.1 will move left and right together with the fixed part 30.24. The motor 30.11 used to drive the rotation of the soot blowing pipe 20.1 is equipped with a corresponding slide rail (not shown in the figure), which allows the motor to move synchronously with the left and right movement of the soot blowing pipe 20.1.

[0033] Specifically, there is a clearance between the sootblowing pipe 20.1 and the boiler inlet. During sootblowing, high-temperature flue gas and dust inside the boiler can easily leak out through this clearance. This not only pollutes the operating environment around the device but may also damage other components due to high temperatures, and even pose a safety hazard. To solve the above technical problems, a sealing cover 40 is also included. The sealing cover 40 has a stepped circular through-hole. The diameter of the larger diameter section of the stepped circular through-hole is larger than the diameter of the boiler inlet, and the smaller diameter section is used for the sootblowing pipe 20.1 to pass through. The larger diameter section is closer to the limiting component 10 than the smaller diameter section. Thus, installing the sealing cover 40 at the gap between the sootblowing pipe 20.1 and the boiler inlet can effectively prevent the leakage of high-temperature flue gas and dust inside the boiler, protect the surrounding environment and component safety, and maintain stable internal boiler pressure to ensure the normal operation of sootblowing. In this embodiment, combined with the attached... Figure 5 The component on the left with a stepped structure is the sealing cover 40, which has a stepped circular through hole. The diameter of the larger diameter section of the stepped circular through hole is larger than the diameter of the boiler inlet, and the smaller diameter section is used for the soot blowing pipe 20.1 to pass through. The larger diameter section is closer to the limiting component 10 than the smaller diameter section.

[0034] Specifically, in practical applications, when it is necessary to clean ash from different boiler openings or different locations on the same boiler, manual handling of the device is often required, which is time-consuming and labor-intensive. To solve the above technical problems, a positioning component is also included; the positioning component includes a housing 50.1 and a second roller 50.2; the second roller 50.2 and the limiting component 10 are respectively disposed on two opposite surfaces of the housing 50.1. Thus, when it is necessary to move to different boiler openings, the rolling action of the second roller 50.2 can easily push the entire soot blowing device to move, eliminating the need for laborious handling and improving the convenience of moving the device between different working positions. In this embodiment, combined with the attached... Figure 6 At the front of the image, two horizontal bars 50.3 are installed in parallel. These two horizontal bars 50.3 are arranged along the horizontal direction of the image. Each horizontal bar 50.3 is equipped with two second rollers 50.2.

[0035] Specifically, in actual operation, the height of different boiler inlets varies, which can prevent the soot blowing pipe 20.1 from maintaining precise alignment with the boiler inlet, affecting the soot removal effect. To solve the above technical problem, the length of the telescopic rod is adjusted for boiler inlets of different heights to ensure precise alignment between the soot blowing pipe 20.1 and the boiler inlet, providing a foundation for stable soot removal. In this embodiment, combined with the attached... Figure 6 Black support members 70 (black circular parts) are installed at the four corners of the device housing 50.1. The support members are connected to the telescopic rod (not shown in the figure).

[0036] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated further here.

[0037] The solution of this application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different emphases; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to this application. Furthermore, it is understood that the steps in the method of this application embodiment can be adjusted, combined, and deleted according to actual needs, and the modules in the device of this application embodiment can be combined, divided, and deleted according to actual needs.

[0038] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A limiting component, characterized in that, include: A connecting component and a rotating connecting ring; A is an integer greater than or equal to 2, and the A abutment components are evenly distributed in a circle. The rotating connecting ring is used for the soot blowing pipe to pass through, and the inner wall of the rotating connecting ring is used for rotatable connection with the soot blowing pipe. The abutting component includes an abutting block and a telescopic part, one end of which is connected to the abutting block and the other end is connected to the outer circumferential surface of the rotating connecting ring; The end face of the abutting block away from the telescopic part is used to abut against the inner wall of the boiler inlet; The telescopic part is used to drive the abutment block to move radially along the boiler inlet.

2. The limiting component according to claim 1, characterized in that, Also includes: A curved section, a second ring, and a third ring; The second ring and the third ring are collinear in axis and are spaced apart from each other. The inner circumferential surfaces of the second ring and the third ring are connected to the outer circumferential surface of the rotating connecting ring, forming a circular space; A arc-shaped portions are embedded in the annular space and are evenly spaced around the circumference, creating A radially extending holes. The telescopic part is an electric telescopic rod; The electric telescopic rod is installed in the hole, and the movable end is adapted to the hole. Both the second ring and the third ring have axially extending and opposing arc-shaped through grooves on their radial sides; The arc-shaped through groove extends from the inside out. The movable end is provided with a limiting pin that is inserted into the arc-shaped through groove.

3. A limiting component according to claim 2, characterized in that: The movable end has a limiting protrusion on the side near the arc-shaped part; The arc-shaped portion is provided with a slide rail that is adapted to the limiting protrusion and extends radially.

4. A soot blowing device, characterized in that, include: The limiting component and the soot blowing component as described in any one of claims 1 to 3; The soot blowing assembly includes a soot blowing pipe; The soot blowing pipe has an air outlet at one axial end and is used to connect to an air source at the other axial end. The rotating connecting ring is sleeved between the two axial ends of the soot blowing pipe.

5. The soot blowing device according to claim 4, characterized in that: The soot blowing assembly also includes a soot sweeping component; The dust removal component includes a first connecting plate and a brush section; One radial end of the first connecting plate is connected to the soot blowing pipe, and the other radial end is connected to the brush section; The axial position of the brush part coincides with the axial position of the air outlet, and there is a gap between the axial position of the brush part and the axial position of the air outlet.

6. The soot blowing device according to claim 5, characterized in that: The soot blowing assembly also includes a first roller; The first roller is connected to the first connecting plate, and its rotation axis is parallel to the axis of the blowing tube; the first roller is located at the axial end of the brush part.

7. The soot blowing device according to claim 4, characterized in that: It also includes adjustment components; The adjustment assembly includes a rotation unit; The rotating unit includes a first driving element, a first gear, and a second gear; The second gear has a first circular through hole at its center; The soot blowing pipe passes through the first circular through hole; The first driving member is connected to the first gear and is used to drive the first gear to rotate; the second gear meshes with the first gear; The rotating connecting ring is located between the air outlet and the second gear.

8. The soot blowing device according to claim 7, characterized in that: The adjustment component also includes a moving unit; The moving unit includes a sliding base, a threaded rod, and a second driving component; The axis of the threaded rod is parallel to the axis of the soot blowing pipe; The sliding base includes a fixed part and a sliding part, and the fixed part is provided with a second circular through hole; The axial end of the soot blowing pipe, which is used to connect to the air source, passes through the second circular through hole and is rotatably connected to the fixing part. The sliding part has a threaded through hole along the axial direction of the soot blowing pipe, and the threaded rod passes through the threaded through hole; The second driving component is connected to the threaded rod and is used to drive the threaded rod to rotate.

9. The soot blowing device according to claim 4, characterized in that, Also includes: Sealing cover; The sealing cover has a stepped circular through hole; The diameter of the large-diameter section of the stepped circular through hole is larger than the diameter of the boiler inlet, and the small-diameter section is used for the soot blowing pipe to pass through. The larger aperture section is closer to the limiting component than the smaller aperture section.

10. The soot blowing device according to claim 4, characterized in that, Also includes: Positioning components; The positioning component includes a housing and a second roller; The second roller and the limiting component are respectively located on two opposite surfaces of the housing.

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