A combined boiler sootblowing device

Abstract

The present application relates to the technical field of boiler operation supporting equipment, specifically a combined boiler sootblowing device, comprising: an air guide main pipe, a connecting sleeve, an air guide branch pipe, a nozzle, a connecting protrusion, a connecting shaft, a connecting strip, a transmission rod, a connecting block, an electric push rod, an air supply module, an air guide hose, a support frame, a tooth groove, a drive motor, a drive gear, a support strip, a support seat A, a support seat B and a support seat C. One end of the air guide main pipe is equidistantly fixedly connected with a plurality of connecting sleeves, the middle part of the connecting sleeve is respectively connected to the air guide main pipe, one end of each of the air guide branch pipes is rotatably connected to the two ends of the connecting sleeve, the rotating connection end of the air guide branch pipe is connected to the middle part of the connecting sleeve, and the ends of each of the air guide branch pipes away from the connecting sleeve are sealed. The present application has the effects of being able to adjust the sootblowing angle, improving the overall soot cleaning capacity at different angles, running smoothly and having a low failure rate.

Description

Technical Field

[0001] The present application relates to the technical field of boiler operation supporting equipment, and in particular to a combined boiler sootblowing device. Background Art

[0002] Boilers are common in industries such as petrochemical production, heating, garbage disposal, and smelting. Boilers generally need to work continuously for a long time after operation. In the use of boilers in some industries where the raw material is coal and smoke is generated after combustion, ash will accumulate on the component structure inside the boiler, which reduces the heat transfer efficiency. Therefore, after the boiler has been running for a period of time, the heating surface needs to be cleaned to make the heating surface clean. Among the existing boiler equipment, the telescopic soot blower is the most commonly used soot blowing equipment in traditional boilers that burn coal or generate smoke. This type of equipment is extended into the boiler through a pipeline, especially the rake soot blowing structure, which can clean the structural position with more components installed inside the boiler. The effect is better than the tubular and sonic soot blowing structures, and it is also suitable for use in larger boilers. However, the existing soot blowing structure of this type has a fixed soot blowing direction downward or at an angle, and the cleaning effect is not good for some structures with component gaps, fin gaps or inclined angles. Therefore, it is necessary to improve the existing soot blowing structure to solve these problems and improve the soot blowing capacity of the equipment. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of the present application is to provide a combined boiler sootblowing device that can adjust the sootblowing angle, improve the overall soot cleaning capacity at different angles, operate smoothly, and have a low failure rate.

[0004] The above application objectives of this application are achieved through the following technical solutions:

[0005] A combined boiler sootblower device comprises: an air guide main pipe, a connecting sleeve, an air guide branch pipe, a nozzle, a connecting convex block, a connecting shaft, a connecting strip, a transmission rod, a connecting block, an electric push rod, an air supply module, an air guide hose, a support frame, a tooth groove, a driving motor, a driving gear, a support strip, a support seat A, a support seat B and a support seat C, one end of the air guide main pipe is equidistantly fixedly connected with a plurality of connecting sleeves, the middle of the connecting sleeves is respectively connected with the air guide main pipe, one end of each of the air guide branch pipes is respectively rotatably connected to the two ends of the connecting sleeve, and the rotating connection end of the air guide branch pipe is connected with the connecting sleeve. The middle part of the connecting sleeve is interpenetrated, the ends of the air guide branches away from the connecting sleeve are sealed, the nozzles are equidistantly connected to the surface of the air guide branch, the connecting protrusions are fixedly connected to the surface of the air guide branch near one end of the connecting sleeve, the transmission rod is slidably connected to the upper surface of the air guide main pipe, the connecting shafts are fixedly connected to the rod body of the transmission rod near one end of the air guide branch, the ends of the connecting shafts are movably connected to one end of the connecting strip, the other end of the connecting strip is movably connected to the connecting protrusions, and the connecting block is fixedly connected to the air guide main pipe. Away from the upper surface of one end of the connecting sleeve, the connecting end of the electric push rod is fixedly connected to the connecting block, the telescopic end of the electric push rod is fixedly connected to the end of the transmission rod, the output end of the air supply module is connected to the inside of the air guide pipe through the air guide hose, the lower end of the support frame is fixedly connected to the ground or the supporting frame of the boiler, the tooth grooves are equidistantly arranged on the surface of one side of the air guide pipe, the driving motor is fixedly connected to the upper end of the support frame, the driving gear is fixedly connected to the upper end of the driving motor, and the driving gears are respectively meshed with the tooth grooves. The support bar is arranged inside the furnace body, the support bar corresponds to the gas guide pipe vertically, the support bar and the gas guide pipe are parallel to each other, the support seat A is fixedly connected to the surface of the support bar close to one end of the electric push rod, the upper end of the support seat A is movably connected to the lower surface of the gas guide pipe, the support seat B is fixedly connected to the lower surface of the gas guide pipe where one end of the connecting sleeve is installed, the lower end of the support seat B is movably connected to the upper surface of the support bar, the support seat C is fixedly connected to the upper surface of the support frame, and the upper end of the support seat C is movably connected to the lower surface of the gas guide pipe located outside the boiler.

[0006] Optionally, it also includes a guide rail, which is fixedly connected to the upper surface of the support bar and is cooperatively connected to the lower end of the support seat B.

[0007] Optionally, it also includes a connecting ring, which is rotatably connected to the ends of the air guide branches away from the connecting sleeve.

[0008] Optionally, it also includes a limiting sleeve, which is fixedly connected to the upper surface of the gas guide main pipe close to the gas guide branch pipe, and the transmission rod is slidably connected to the limiting sleeve.

[0009] Optionally, a sealing plate is further included, wherein the sealing plate is fixedly connected to the outer surface of the boiler, and the air guide pipe and the transmission rod are respectively slidably connected to the middle position of the sealing plate.

[0010] Optionally, it also includes scale lines, which are arranged on the surface of the air guide main pipe away from the tooth groove.

[0011] Optionally, it also includes a recessed groove, which is arranged in the middle position of the upper end of the connecting sleeve, and the transmission rod is cooperatively connected to the recessed groove.

[0012] Optionally, it also includes a control module, which is fixedly connected to the surface of the support frame, the input end of the control module is electrically connected to the output end of an external power supply, and the output end of the control module is electrically connected to the input ends of the electric push rod, the drive motor and the air supply module.

[0013] The combined boiler sootblowing device can achieve an overall change in the sootblowing angle through the combined structure, thereby significantly improving the sootblowing effect. It can achieve concentrated blowing on fin gaps, workpiece corners and other locations during reciprocating blowing, thereby achieving a better soot cleaning effect.

[0014] The combined boiler sootblower device can make the transmission rod drive the connecting shaft to move when the electric push rod is extended or shortened, and then pull the connecting protrusion to move through the connecting strip, so as to realize the rotation of the air guide branch pipe, realize the change of the spray angle of the nozzle, make the internal blowing direction focus on one angle, and improve the sootblowing power;

[0015] The combined boiler sootblowing device has an air guide main pipe that is arranged in a rectangular shape, which is convenient for component installation during the connection process, maintains stable movement during the insertion process during sootblowing, and has good stability during the process of adjusting the rotation angle of the air guide branch pipe, is not prone to failure, and has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram provided by an embodiment of the present application;

[0017] Figure 2 It is a schematic diagram of the side structure provided by an embodiment of the present application;

[0018] Figure 3 It is a schematic diagram of the bottom structure provided in an embodiment of the present application;

[0019] Figure 4 It is a schematic diagram of the local enlarged structure at point A provided in an embodiment of the present application.

[0020] Figure numerals: 1. air guide main pipe; 2. connecting sleeve; 3. air guide branch pipe; 4. nozzle; 5. connecting protrusion; 6. connecting shaft; 7. connecting strip; 8. transmission rod; 9. connecting block; 10. electric push rod; 11. air supply module; 12. air guide hose; 13. support frame; 14. tooth groove; 15. drive motor; 16. drive gear; 17. support strip; 18. support seat A; 19. support seat B; 20. support seat C; 21. guide rail; 22. connecting ring; 23. limit sleeve; 24. sealing plate; 25. scale line; 26. recessed groove; 27. control module. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings.

[0022] In order to more clearly understand the technical solutions presented in the embodiments of the present application, the working principle of the existing rake-type boiler sootblower is first introduced.

[0023] The existing rake-type sootblowing equipment can be used in boilers with larger areas. The rake-type pipes can be used to blow at different positions in the boiler. The sootblowing nozzles of the existing sootblowing devices of this type are all set downward. The reciprocating downward sootblowing is achieved by moving the rod body, and the dust deposited in the boiler can be removed. However, since the sootblowing direction is all downward, in some positions such as the gaps between heat exchange fins and workpiece connections, the dust cannot be completely removed by blowing downward, resulting in a lot of residual ash in the gaps after cleaning. In actual operation, some manufacturers will set the sootblowing nozzles in different directions to solve these problems. Such a structure will reduce the overall sootblowing ability, making the overall airflow direction during sootblowing less concentrated, and the friction between the gases greatly reduces the sootblowing effect, so that the dust at the original vertical angle is not completely dropped. Therefore, this method cannot solve this type of problem. Therefore, it is also necessary to equip it with sonic directional dust removal or blasting directional dust removal to deal with this place separately. These methods make the structure of the boiler too complicated and the operation process cumbersome. Therefore, it is necessary to improve the existing sootblowing structure to solve these problems.

[0024] See also Figure 1, which is a combined boiler sootblower device disclosed in an embodiment of the present application, includes: an air guide main pipe 1, a connecting sleeve 2, an air guide branch pipe 3, a nozzle 4, a connecting protrusion 5, a connecting shaft 6, a connecting strip 7, a transmission rod 8, a connecting block 9, an electric push rod 10, an air supply module 11, an air guide hose 12, a support frame 13, a tooth groove 14, a drive motor 15, a drive gear 16, a support strip 17, a support seat A18, a support seat B19 and a support seat C20, one end of the air guide main pipe 1 is equidistantly fixedly connected with a plurality of connecting sleeves 2, the middle of the connecting sleeves 2 are respectively connected to the air guide main pipe 1, and one end of each of the air guide branch pipes 3 is respectively connected to the rotating shaft 11. The ends of the connecting sleeve 2 are connected, the rotating connecting ends of the air guide branch pipe 3 are connected to the middle of the connecting sleeve 2, the ends of the air guide branch pipes 3 away from the connecting sleeve 2 are sealed, the nozzles 4 are connected to the surface of the air guide branch pipes 3 at equal distances, the connecting protrusions 5 are fixedly connected to the surface of the air guide branch pipes 3 close to the end of the connecting sleeve 2, the transmission rod 8 is slidably connected to the upper surface of the air guide main pipe 1, the connecting shafts 6 are fixedly connected to the rod body of the transmission rod 8 close to the end of the air guide branch pipe 3, the ends of the connecting shafts 6 are respectively movably connected to one end of the connecting strip 7, the other end of the connecting strip 7 is respectively movably connected to the connecting protrusions 5, the connecting block 9 is fixed The connecting end of the electric push rod 10 is fixedly connected to the upper surface of the end of the gas guide pipe 1 away from the connecting sleeve 2, the connecting end of the electric push rod 10 is fixedly connected to the connecting block 9, the telescopic end of the electric push rod 10 is fixedly connected to the end of the transmission rod 8, the output end of the air supply module 11 is connected to the inside of the gas guide pipe 1 through the gas guide hose 12, the lower end of the support frame 13 is fixedly connected to the ground or the supporting frame of the boiler, the tooth grooves 14 are equidistantly arranged on the surface of one side of the gas guide pipe 1, the driving motor 15 is fixedly connected to the upper end of the support frame 13, the driving gear 16 is fixedly connected to the upper end of the driving motor 15, and the driving gear 16 is respectively meshed with the tooth grooves 14 and connected to one A support bar 17 is arranged inside the furnace body, the support bar 17 corresponds to the gas guide pipe 1 vertically, the support bar 17 and the gas guide pipe 1 are parallel to each other, a support seat A18 is fixedly connected to the surface of the support bar 17 close to one end of the electric push rod 10, the upper end of the support seat A18 is movably connected to the lower surface of the gas guide pipe 1, a support seat B19 is fixedly connected to the lower surface of the gas guide pipe 1 at which the connecting sleeve 2 is installed, the lower end of the support seat B19 is movably connected to the upper surface of the support bar 17, a support seat C20 is fixedly connected to the upper surface of the support frame 13, and the upper end of the support seat C20 is movably connected to the lower surface of the gas guide pipe 1 located outside the boiler.

[0025] Specifically, one end of the gas guide main pipe 1 extending into the interior of the boiler is equidistantly connected with a connecting sleeve 2, the diameter of the connecting sleeve 2 is larger than the diameter of the gas guide main pipe 1, so that the high-pressure gas can be diverted there. One end of the arranged gas guide branch pipe 3 is rotatably connected to the connecting sleeve 2, and the connection between the two is mechanically rotated. Insulating cotton, gaskets, etc. are installed at the connection to ensure that there is no leakage or gas leakage of a small flow rate at this location. The interface is compressed under high pressure to further improve the sealing effect. The arranged nozzles 4 are equidistantly connected to the same side of the gas guide branch pipe 3, so that the high-pressure gas can be ejected, and the gas is blown upward rapidly to blow off the internal dust. , so that it falls into the lower end or is discharged through the chimney. The connecting block 9 is capable of connecting and fixing the electric push rod 10. During the blowing process, the electric push rod 10 is extended or shortened, thereby driving the transmission rod 8 to slide on the air guide main pipe 1, thereby driving the connecting shaft 6 to follow and move. The movement of the connecting shaft 6 drives the connecting strip 7 to move, thereby pulling or pushing the connecting protrusion 5 to move, so as to realize the rotation of the air guide branch pipe 3 during the soot blowing process, thereby changing the blowing direction at the nozzle 4, effectively solving the blowing effect at the gap, and improving the thoroughness of the traditional rake-type soot cleaning. The supporting frame 13 is installed on the external structure On the upper part, the outer part of the gas guide pipe 1 is supported by the support seat C20, and the specific number can be flexibly increased or decreased according to the actual size. The support bar 17 can support the components of the gas guide pipe 1 located inside the boiler, and the support seat A18 can bear the weight of the gas guide pipe 1 passing there. The support seat B19 can connect the end of the gas guide pipe 1 to ensure parallel movement during the movement. The air supply module 11 is equipped with a high-power compression device inside, which can generate and store a large volume of compressed air, and then introduce it to the end of the gas guide pipe 1 through the air guide hose 12. Both ends of the air guide pipe 1 are not sealed, and the air guide pipe 1 does not rotate during movement, which reduces the complexity of the components. The set drive motor 15 converts electrical energy into mechanical energy and then cooperates with the tooth groove 14 through the drive gear 16 at the end to drive the air guide pipe 1. The drive motor 15 is a servo motor, which can be adjusted at different angles to improve the adaptability of the whole process. Compared with the traditional one-way blowing form, this structure can change the blowing angle, so that the thoroughness of cleaning is greatly improved, so that the equipment components can better perform their own performance, improve the heat utilization efficiency of the boiler, and have good practical value.

[0026] See also Figure 2 As another specific embodiment provided in the application, it also includes a guide rail 21, which is fixedly connected to the upper surface of the support bar 17, and the guide rail 21 is cooperatively connected with the lower end of the support seat B19.

[0027] Specifically, the setting of the guide track 21 can limit the moving track of the support base B19, thereby ensuring the stability of the air guide main pipe 1 during the movement.

[0028] See also Figure 3 As another specific embodiment provided by the application, it also includes a connecting ring 22, which is rotatably connected to the ends of the air guide branch pipes 3 away from the connecting sleeve 2.

[0029] Specifically, the connection ring 22 can be connected to the guide rod body in the boiler, further ensuring the stability of the gas branch pipe 3 during use. The two are connected in a rotating manner to avoid affecting the angle adjustment.

[0030] See also Figure 1 As another specific embodiment provided by the application, it also includes a limit sleeve 23, the limit sleeve 23 is fixedly connected to the upper surface of the air guide main pipe 1 close to the air guide branch pipe 3, and the transmission rod 8 is slidably connected to the limit sleeve 23.

[0031] Specifically, the setting of the limiting sleeve 23 can limit the movement of the transmission rod 8, making its movement process more stable.

[0032] See also Figure 2 As another specific embodiment provided by the application, it also includes a sealing plate 24, which is fixedly connected to the outer surface of the boiler, and the air guide pipe 1 and the transmission rod 8 are slidably connected to the middle position of the sealing plate 24 respectively.

[0033] Specifically, the provision of the sealing plate 24 can seal the opening of the gas guide pipe 1 and other components when passing through the boiler, further reducing the spillage of dust, and allowing the gas guide pipe 1 and the transmission rod 8 to move smoothly.

[0034] See also Figure 3 As another specific embodiment provided by the application, it also includes a scale line 25, and the scale line 25 is opened on the surface of the air guide main pipe 1 away from the tooth groove 14.

[0035] Specifically, the setting of the scale line 25 enables people to observe the soot blowing position more intuitively, facilitates flexible adjustment, and improves convenience.

[0036] See also Figure 4 As another specific embodiment provided by the application, it also includes a recessed groove 26, which is arranged in the middle position of the upper end of the connecting sleeve 2, and the transmission rod 8 is connected with the recessed groove 26 in a cooperative manner.

[0037] Specifically, the arrangement of the recessed groove 26 can cooperate with the transmission rod 8, thereby making the movement of the transmission rod 8 smoother and allowing for adjustment at a larger angle.

[0038] See also Figure 2 As another specific implementation provided by the application, it also includes a control module 27, which is fixedly connected to the surface of the support frame 13, the input end of the control module 27 is electrically connected to the output end of the external power supply, and the output end of the control module 27 is electrically connected to the input ends of the electric push rod 10, the drive motor 15 and the air supply module 11 respectively.

[0039] Specifically, the control module 27 uses a programmable single chip microcomputer, which can be adjusted according to the actual size of the boiler, improve the adaptability range, and add soot blowing modes to meet the needs of different environments.

[0040] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A combined boiler sootblowing device, characterized in that: include: An air guide main pipe (1), a connecting sleeve (2), an air guide branch pipe (3), a nozzle (4), a connecting protrusion (5), a connecting shaft (6), a connecting strip (7), a transmission rod (8), a connecting block (9), an electric push rod (10), an air supply module (11), an air guide hose (12), a support frame (13), a tooth groove (14), a drive motor (15), a drive gear (16), a support strip (17), a support seat A (18), a support seat B (19) and a support seat C (20), wherein one end of the air guide main pipe (1) is fixedly connected to a plurality of connecting sleeves (2) at equal intervals, the middle parts of the connecting sleeves (2) are respectively connected to the air guide main pipe (1), and one end of each of the air guide branch pipes (3) is rotatably connected to the connecting sleeve (2). The two ends of the air guide branch pipe (3) are connected to the middle of the connecting sleeve (2); the ends of the air guide branch pipe (3) away from the connecting sleeve (2) are sealed; the nozzles (4) are connected to the surface of the air guide branch pipe (3) at equal distances; the connecting protrusions (5) are fixedly connected to the surface of the air guide branch pipe (3) close to one end of the connecting sleeve (2); the transmission rod (8) is slidably connected to the upper surface of the air guide main pipe (1); the connecting shafts (6) are fixedly connected to the rod body of the transmission rod (8) close to one end of the air guide branch pipe (3); the ends of the connecting shafts (6) are movably connected to one end of the connecting strip (7); the other ends of the connecting strip (7) are movably connected to the connecting protrusions (5); The connecting block (9) is fixedly connected to the upper surface of the end of the gas guide pipe (1) away from the connecting sleeve (2); the connecting end of the electric push rod (10) is fixedly connected to the connecting block (9); the telescopic end of the electric push rod (10) is fixedly connected to the end of the transmission rod (8); the output end of the gas supply module (11) is connected to the inside of the gas guide pipe (1) through the gas guide hose (12); the lower end of the support frame (13) is fixedly connected to the ground or the support frame of the boiler; the tooth grooves (14) are equidistantly arranged on the surface of one side of the gas guide pipe (1); the drive motor (15) is fixedly connected to the upper end of the support frame (13); the drive gear (16) is fixedly connected to the upper end of the drive motor (15); the drive gear (16) is fixedly connected to the upper end of the drive motor (15); The wheels (16) are respectively meshed and connected with the tooth grooves (14); the support bar (17) is arranged inside the furnace body; the support bar (17) corresponds vertically to the gas guide pipe (1); the support bar (17) and the gas guide pipe (1) are parallel to each other; the support seat A (18) is fixedly connected to the surface of the support bar (17) close to one end of the electric push rod (10); the upper end of the support seat A (18) is movably connected to the lower surface of the gas guide pipe (1); the support seat B (19) is fixedly connected to the lower surface of the gas guide pipe (1) at one end of which the connecting sleeve (2) is installed; the lower end of the support seat B (19) is movably connected to the upper surface of the support bar (17); the support seat C (20) is fixedly connected to the upper surface of the support frame (13);The upper end of the support seat C (20) is movably connected to the lower surface of the gas guide pipe (1) located outside the boiler.

2. A combined boiler sootblowing device according to claim 1, characterized in that: It also comprises a guide rail (21), wherein the guide rail (21) is fixedly connected to the upper surface of the support bar (17), and the guide rail (21) is cooperatively connected to the lower end of the support seat B (19).

3. A combined boiler sootblower device according to claim 1, characterized in that: It also comprises a connecting collar (22), wherein the connecting collar (22) is rotatably connected to the ends of the air guide branch pipes (3) respectively away from the connecting collar (2).

4. A combined boiler sootblower device according to claim 1, characterized in that: It also comprises a limiting sleeve (23), wherein the limiting sleeve (23) is fixedly connected to the upper surface of the air guide main pipe (1) on a side close to the air guide branch pipe (3), and the transmission rod (8) is slidably connected to the limiting sleeve (23).

5. The combined boiler sootblowing device according to claim 1, characterized in that: It also comprises a sealing plate (24), wherein the sealing plate (24) is fixedly connected to the outer surface of the boiler, and the gas guide pipe (1) and the transmission rod (8) are respectively slidably connected to the middle position of the sealing plate (24).

6. A combined boiler sootblower device according to claim 1, characterized in that: It also includes a scale line (25), wherein the scale line (25) is provided on the surface of the air guide main pipe (1) on a side away from the tooth groove (14).

7. The combined boiler sootblowing device according to claim 1, characterized in that: It also comprises a recessed groove (26), the recessed groove (26) being arranged at a middle position of the upper end of the connecting sleeve (2), and the transmission rod (8) being cooperatively connected to the recessed groove (26).

8. The combined boiler sootblowing device according to claim 1, characterized in that: It also includes a control module (27), the control module (27) being fixedly connected to the surface of the support frame (13), the input end of the control module (27) being electrically connected to the output end of an external power supply, and the output end of the control module (27) being electrically connected to the input ends of the electric push rod (10), the drive motor (15) and the air supply module (11).

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