A fixed structure of a folded angle cyclone sootblower

Abstract

The present application relates to the technical field of boiler ash removal equipment, and discloses a fixed structure of a folded-flue-angle cyclone sootblower, which comprises a base, a main machine and a blowing pipe.The main machine is fixed above the base, and the side wall of the main machine is connected with the blowing pipe.The blowing pipe is connected with an outer plate and a connecting shell, the connecting shell penetrates through a fixed rod, and the front end of the fixed rod is connected with an inner plate.A screw rod is screwed on the outer side of the connecting shell, the inner slot of the screw rod extrudes the buckle in the connecting shell, and the buckle is forced to lock the fixed rod.The connecting plate outside the blowing pipe drives the limiting plate in the pipe wall to move against the spring pushing force, and the limiting and blocking of the filter plate in the pipe are released.The buckle is shrunk and clamped to fix the fixed rod by screwing in the screw rod, flange punching and on-site welding are replaced, the risk of wall damage and the difficulty of construction positioning are reduced, the filter plate is blocked by using the spring to push the limiting plate, the filter screen can be unlocked and separated by pulling the external connecting plate, the problem of rusting and locking of the screw thread in the dust environment is avoided, and the time consumption of anti-blocking and shutdown is shortened.

Description

Technical Field

[0001] This invention relates to the field of boiler ash removal equipment technology, and in particular to a fixed structure for a flame deflector swirl soot blower. Background Technology

[0002] Cyclone sootblowers are commonly used soot-removing devices in the flame deflector area of ​​boilers. During assembly, the sootblowing tube needs to be inserted into the internal cavity through the furnace wall, the external main unit carrier is attached to the outside of the furnace wall for support, and filter components are installed at the end of the tube to block impurities.

[0003] Existing methods for fixing the equipment body to the furnace wall mostly rely on drilling holes in the flange and using through-wall bolts, or on-site welding using an auxiliary steel frame. The complex furnace side environment restricts construction operations, drilling multiple holes in the wall weakens the integrity of the furnace wall structure, and the welding quality under confined space is also inconsistent, increasing the difficulty of initial equipment installation.

[0004] To address this issue, a fixed structure for the flame deflector vortex soot blower is proposed. Summary of the Invention

[0005] In view of the problems in the existing technology of flame deflector swirl sootblower, the installation and fixation of which mostly rely on flange drilling and through-wall bolts or on-site welding, resulting in high construction difficulty and easy damage to the furnace wall structure, the present invention aims to provide a modified flame deflector swirl sootblower fixing structure that can effectively solve the above problems.

[0006] This invention provides a fixing structure for a flame deflector vortex sootblower, comprising: a base, and a main unit fixedly connected to the base, wherein a blowing pipe is connected to and fixedly connected to the side wall of the main unit; and a fixing mechanism disposed on the blowing pipe and a disassembly mechanism disposed in front of the blowing pipe. The fixing mechanism includes an inner plate, an outer plate, a connecting shell, a screw, a buckle, and a fixing rod.

[0007] Furthermore, the outer plate is connected between the main unit and the blower pipe, the outer plate is connected to the connecting shell, the fixing rod is inserted into the connecting shell, the end of the fixing rod away from the outer plate is connected to the inner plate, the connecting shell is connected to the outside of the connecting shell, the connecting shell is provided with the buckle inside, the buckle abuts against the surface of the fixing rod, the screw is provided with a groove inside, the inner wall of the groove is in contact with the outer side of the buckle and forms a compression fit.

[0008] The disassembly mechanism includes a connecting plate, a limiting plate, a spring, and a filter plate. The filter plate is placed inside the front end of the air blower. The connecting plate is sleeved on the outside of the end of the air blower. The limiting plate is connected to the inner side of the connecting plate. The front end of the limiting plate extends into and abuts against the outer edge of the filter plate. The spring is located behind the limiting plate, and both ends of the spring abut against the limiting plate and the inner support wall of the air blower, respectively.

[0009] The connecting shell and the screw are connected by a thread. The groove inside the screw has a tapered structure, and the tapered surface is guided to move axially by the thread engagement. Multiple latches are provided, and these latches are arranged in a ring array along the outer circumference of the fixing rod.

[0010] The buckle has an inclined wall surface on the outside that is parallel to the inclination of the inner wall surface of the slot, and the inner wall surface of the buckle has an arc geometric profile that matches the shape of the outer circumferential surface of the fixing rod. Multiple independent petal blocks are used to ensure the uniformity of force when compressed and contracted.

[0011] The blower pipe wall has an axial groove along its length, and the limiting plate passes through and is slidably connected inside the axial groove, with the groove wall providing a movement trajectory guide and limiting radial offset.

[0012] The connecting plate is slidably sleeved on the outer cylindrical sidewall of the blower pipe, and the spring is assembled deep inside the axial groove to prevent external dust from directly adhering to the surface of the spring coil. A limiting ring groove is machined on the inner sidewall of the front end of the blower pipe, and the outer edge of the filter plate is inserted and fixed inside the limiting ring groove, forming a bidirectional rigid barrier with the limiting plate.

[0013] Both the inner plate and the outer plate have a disc-shaped outer contour. The outer plate is fixed to the junction of the main unit and the blower pipe by fasteners, thereby increasing the contact area and dispersing the normal compressive load.

[0014] The present invention has the following beneficial effects: 1. This invention utilizes a mechanical combination where the internal conical inclined surface of the screw presses multiple clips together to retract synchronously towards the center, generating multi-point radial clamping pressure on the through-wall fixing rod. This structure replaces conventional flange drilling or on-site high-temperature welding installation procedures, achieving rigid positioning of the equipment while maintaining the integrity of the wall foundation structure, thus reducing the difficulty of fixing and installing the equipment in complex on-site environments.

[0015] 2. This invention features a mechanical blocking structure based on spring return force at the front end of the blower duct to constrain the axial position of the filter component. When dust accumulates on the filter component and needs to be removed for cleaning, the operator pulls the external sliding sleeve connecting plate backward to simultaneously release the blocking lock. This design eliminates the use of conventional threaded fasteners, avoiding the disassembly obstacles caused by bolts rusting and seizing after long-term operation in dusty environments, and shortening the maintenance time for each anti-clogging cleaning.

[0016] 3. The present invention relies on the inner and outer plates of the disc shape to clamp the two sides of the wall, which expands the contact range between the load-bearing surface of the equipment and the wall surface, and helps to disperse the vibration load caused by the reaction thrust during the operation of the soot blower; the spring that provides the reset thrust is concealed in the guide groove area inside the pipe wall, which prevents the external dust-laden airflow from directly intruding into the gap of the spring coil, and maintains the smoothness of the extension and sliding of the movable limiting component under dust conditions. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a fixed structure for a flame deflector swirl soot blower proposed in this invention; Figure 2 This is a schematic diagram of the outer plate of the fixing structure of the flame deflector vortex soot blower proposed in this invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0018] Legend: 1. Base; 2. Main unit; 3. Air blower; 4. Fixing mechanism; 41. Inner plate; 42. Outer plate; 43. Connecting shell; 44. Screw; 45. Buckle; 46. Fixing rod; 5. Disassembly mechanism; 51. Connecting plate; 52. Limiting plate; 53. Spring; 54. Filter plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example: Reference Figures 1 to 4This invention provides a fixed structure for a flame deflector vortex soot blower, including a base 1 and a main unit 2 fixedly connected above the base 1. The base 1 serves as a support platform for the overall equipment, and the main unit 2 generates the power required for soot blowing. A blowing pipe 3 is connected and fixedly connected to the side of the main unit 2, and the blowing pipe 3 guides the airflow to the working area.

[0021] The blower duct 3 is externally connected to a fixing mechanism 4, which is used to lock the main body of the equipment to the working wall. The fixing mechanism 4 includes an inner plate 41, an outer plate 42, a connecting shell 43, a screw 44, a buckle 45, and a fixing rod 46. The outer plate 42 is sleeved and fixed between the main unit 2 and the blower duct 3. The outer plate 42 is used to provide a rigid support surface outside the equipment. The connecting shell 43 is fixedly connected to the middle of the outer side of the outer plate 42. The connecting shell 43 is used to guide the movement of internal components. The fixing rod 46 is inserted through the connecting shell 43. The fixing rod 46 is used to transmit tension through the wall. The end of the fixing rod 46 away from the outer plate 42 is fixedly connected to the inner plate 41. The inner plate 41 is used to place on the inner wall of the wall to provide reverse limiting resistance. The connecting shell 43 is externally threaded with a screw 44. The screw 44 is used to receive external rotational torque and convert it into axial thrust. The connecting shell 43 is internally slidably connected with a buckle 45. The buckle 45 is used to receive pressure deformation and lock the central rod.

[0022] The inner wall of the buckle 45 abuts against the surface of the fixing rod 46. The screw 44 has a groove inside, and the inner wall of the groove is pressed and fitted with the outer end face of the buckle 45. The groove inside the screw 44 has a trumpet-shaped conical structure. The outer end face of the buckle 45 is machined with an inclined chamfer parallel to the inner wall of the groove. There are multiple buckles 45, which are distributed in a circumferential array along the outer circumference of the fixing rod 46. The inner wall of the buckle 45 is adapted to the shape of the outer surface of the fixing rod 46. The inner plate 41 and the outer plate 42 are both disc-shaped. The central axis of the fixing rod 46 is coaxial with the center of the inner plate 41 and the outer plate 42.

[0023] The front end of the blower duct 3 is equipped with a disassembly mechanism 5. The disassembly mechanism 5 is used to intercept impurities and assist manual disassembly without tools. The disassembly mechanism 5 includes a filter plate 54, a connecting plate 51, a limiting plate 52, and a spring 53. The filter plate 54 is snapped into the inside of the blower duct 3 and is used to block dust. The connecting plate 51 is slidably sleeved on the outside of the blower duct 3. The connecting plate 51 is used to provide a contact surface for manual force application. The connecting plate 51 is fixedly connected to the limiting plate 52. The limiting plate 52 passes through and is slidably connected to the side wall of the blower duct 3. The limiting plate 52 is used for... The internal filter screen is physically blocked and locked. The inner end face of the limiting plate 52 is in contact with the outer edge of the filter plate 54. The spring 53 is located behind the limiting plate 52 and is used to provide elastic restoring potential energy to resist the thrust. The blower pipe 3 has a sliding guide groove inside. The limiting plate 52 is slidably connected to the inside of the sliding guide groove. The two ends of the spring 53 are respectively in contact between the inner wall of the rear side of the sliding guide groove and the inner end face of the limiting plate 52. The inner wall of the front end of the blower pipe 3 has an annular groove. The outer edge of the filter plate 54 is inserted into the annular groove.

[0024] In the fixing mechanism 4, the outer plate 42 and the connecting shell 43 are rigidly fixedly connected. The center of the connecting shell 43 has a through hole that allows the fixing rod 46 to pass through. The fixing rod 46 is placed in the through hole and its surface is exposed. The buckle 45 is installed inside the connecting shell 43 and is close to the outer cylindrical surface of the fixing rod 46. The outer end face of the buckle 45 is machined with an inclined chamfer. The screw 44 is screwed into the external thread of the connecting shell 43. The screw 44 has a groove with a trumpet-shaped conical structure inside. The slope of the inner wall of the groove is consistent with the slope of the inclined chamfer of the buckle 45 and they fit together. The buckle 45 is divided into multiple evenly distributed independent petals and is arranged in a circumferential array along the circumference of the fixing rod 46. The inner plate 41 is fixedly welded to the front end of the fixing rod 46.

[0025] In the installation state, the inner plate 41 is inserted into the inner side of the wall and tightened. The outer host 2, together with the connecting shell 43 on the outer plate 42, is pushed into the fixing rod 46. The screw 44 is manually tightened with a torque applied to the hexagonal contour of the screw 44. The screw 44 is axially screwed inward along the external thread of the connecting shell 43. The conical groove wall inside the screw 44 moves inward accordingly. Its inclined surface gradually presses against the buckles 45 inside the connecting shell 43, which have an inclined chamfer. This forces multiple buckles 45, which are arranged in a circumferential array, to overcome friction and move radially towards the central axis. As the buckles 45 tighten inward, their inner arc wall, which is adapted to the shape, tightly hugs the outer wall of the central fixing rod 46. Due to the simultaneous force on multiple buckles 45, a 360-degree radial locking state is formed, making the outer plate 42 and the fixing rod 46 a rigid whole, thus completing the external locking of the equipment.

[0026] A sliding guide groove is provided inside the front end of the blower pipe 3 along the axial direction. The limiting plate 52 is placed in the sliding guide groove and can slide horizontally along the length of the pipe. The spring 53 is installed deep in the sliding guide groove and presses against the rear side of the limiting plate 52. The front end of the limiting plate 52 passes through the pipe wall and enters the internal cavity of the blower pipe 3. The connecting plate 51 is slidably sleeved on the outer cylindrical surface of the blower pipe 3 in a circular shape, and the outer end of the limiting plate 52 is rigidly connected to the inner side of the connecting plate 51. An annular groove is provided on the inner wall of the front end of the blower pipe 3. The filter plate 54 is disc-shaped and its outer edge is just embedded in the annular groove.

[0027] In operation, the spring 53 is in a naturally extended or slightly compressed state, continuously pushing the limiting plate 52 forward. The front end of the limiting plate 52 abuts against the rear edge of the filter plate 54 located in the annular groove, forming a physical limiting lock. When the filter plate 54 needs to be cleaned, the externally sleeved connecting plate 51 is manually pulled horizontally backward. The connecting plate 51 drives the internally connected limiting plate 52 to overcome the elastic force of the spring 53 and move horizontally backward along the sliding guide groove. The front end of the limiting plate 52 disengages from the filter plate 54, and the filter plate 54 can be directly pulled out from the front end without the rear limiting. When resetting, insert the filter plate 54 and release the connecting plate 51. The spring 53 releases energy and pushes the limiting plate 52 forward to re-lock the edge of the filter plate 54, completing the anti-disengagement reset.

[0028] The outer plate 42 is fixed to the junction of the main unit 2 and the blower pipe 3 by fasteners. The outer plate 41 and the outer plate 42 are both disc-shaped. The disc-shaped structure can expand the pressure-bearing contact area on both sides of the wall and reduce the risk of local wall damage caused by equipment vibration. The connecting shell 43 is machined with external threads on the outside, and the screw 44 is machined with internal threads in the inner hole. The connecting shell 43 and the screw 44 are connected by standard thread profile. Multiple buckles 45 are distributed in a ring array along the outer surface of the fixing rod 46. The inner wall of the buckle 45 is machined into a shape that matches the size of the outer cylindrical surface of the fixing rod 46. The inner groove of the screw 44 is conical. The buckle 45 is machined with an inclined wall parallel to the slope of the inner wall of the groove. The inclined surface ensures that when the screw 44 is screwed in, the multiple buckles 45 are synchronously concentrically contracted under radial pressure and tightly locked onto the outer surface of the fixing rod 46.

[0029] The implementation principle of this application embodiment is as follows: The operator first places the inner plate 41, which is fixedly connected to the fixing rod 46, against the inner wall surface of the wall, so that the fixing rod 46 extends outward through the hole in the wall. The outer plate 42 with the connecting shell 43 is aligned with the fixing rod 46 extending outward and pushed in until the outer plate 42 abuts the outer surface of the wall. The screw 44 is subjected to torque by external tools. The screw 44 is axially rotated along the external thread of the connecting shell 43. The inner wall surface of the conical groove of the screw 44 simultaneously presses the inclined wall surface of the buckle 45, which is processed on the outside, inward. This forces multiple buckles 45 distributed in a ring array to overcome frictional resistance and generate radial contraction displacement in the direction of the central axis. The arc wall surface of the buckle 45 with the appropriate shape tightly hugs the outer cylindrical surface of the fixing rod 46. The mechanical extrusion clamping force realizes the rigid positioning of the main unit 2 of the equipment and the blower pipe 3 together with the base 1 on the working wall.

[0030] In normal interception operation, the front end of the filter plate 54, which is installed in the limiting ring groove inside the air blowing pipe 3, is blocked by the groove wall. The spring 53, which is hidden between the supporting walls, is in the extended state and applies a continuous forward thrust to the limiting plate 52. The front end of the limiting plate 52 presses against the rear edge of the filter plate 54 to form a two-way mechanical lock. When the filter plate 54 needs to be removed for cleaning due to dust accumulation and blockage, the operator pulls the connecting plate 51, which is slidably sleeved on the outside of the air blowing pipe 3, horizontally. The connecting plate 51 drives the penetrating and sliding connection. The limiting plate 52 inside the axial groove moves backward synchronously. The limiting plate 52 moves backward to overcome the elastic force of the spring 53 and compress the spring 53. The limiting plate 52 disengages from the abutment and limiting position of the filter plate 54. After the filter plate 54 is released from the axial constraint, it is directly taken out from the opening at the front end of the blow pipe 3. After cleaning, it is pushed back into the limiting ring groove along the original path. The operator removes the tension acting on the connecting plate 51. The spring 53 releases its elastic potential energy to push the limiting plate 52 forward to reset and rebound. The limiting plate 52 re-locks the filter plate 54 to complete the anti-fall-off reset installation.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fixed structure for a flame deflector vortex soot blower, comprising a base (1) and a main unit (2) fixedly connected above the base (1), wherein the side wall of the main unit (2) is connected to and fixedly connected to a blower pipe (3). Its features are, The blower tube (3) is provided with a fixing mechanism (4), and the blower tube (3) is provided with a disassembly mechanism (5) in front of it. The fixing mechanism (4) includes an inner plate (41), an outer plate (42), a connecting shell (43), a screw (44), a buckle (45), and a fixing rod (46). The outer plate (42) is connected between the main unit (2) and the blower tube (3). The outer plate (42) is connected to the connecting shell (43). The fixing rod (46) is inserted inside the connecting shell (43). The end of the fixing rod (46) away from the outer plate (42) is connected to the inner plate (41). The screw (44) is connected to the outside of the connecting shell (43). The buckle (45) is provided inside the connecting shell (43). The buckle (45) abuts against the surface of the fixing rod (46). The screw (44) has a slot inside. The inner side wall of the slot is in contact with the buckle (45) and forms a compression fit.

2. The fixing structure for a flame deflector vortex soot blower according to claim 1, characterized in that, The connecting shell (43) is threadedly connected to the screw (44), the slot inside the screw (44) has a conical structure, and the buckle (45) has an inclined wall surface parallel to the inner wall surface of the slot.

3. The fixing structure for a flame deflector vortex soot blower according to claim 2, characterized in that, The number of the buckles (45) is multiple, and the multiple buckles (45) are arranged in a ring array along the outer surface of the fixing rod (46), and the inner sidewall of the buckle (45) is adapted to the shape of the outer surface of the fixing rod (46).

4. The fixing structure for a flame deflector vortex soot blower according to claim 1, characterized in that, The disassembly mechanism (5) includes a connecting plate (51), a limiting plate (52), a spring (53), and a filter plate (54). The filter plate (54) is located inside the air pipe (3). The connecting plate (51) is located outside the end of the air pipe (3). The connecting plate (51) is connected to the limiting plate (52). The limiting plate (52) abuts against the outer edge of the filter plate (54). The spring (53) is located behind the limiting plate (52) and abuts against the limiting plate (52) and the inner support wall of the air pipe (3). The air pipe (3) has an axial groove in its wall. The limiting plate (52) passes through and is slidably connected inside the axial groove.

5. The fixing structure for a flame deflector vortex soot blower according to claim 4, characterized in that, The connecting plate (51) is slidably sleeved on the outer side wall of the blower pipe (3), and the spring (53) is located inside the axial groove.

6. The fixing structure for a flame deflector vortex soot blower according to claim 4, characterized in that, The blower pipe (3) has a limiting ring groove inside, and the filter plate (54) is inserted and fixed inside the limiting ring groove at its edge.

7. The fixing structure for a flame deflector vortex soot blower according to claim 1, characterized in that, Both the inner plate (41) and the outer plate (42) are disc-shaped structures. The outer plate (42) is fixed to the junction of the host (2) and the blower pipe (3) by fasteners.

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