Telescopic soot blower for boiler

Abstract

The utility model relates to the technical field of soot blowers, and discloses a telescopic soot blower for a boiler, which comprises a soot blower frame, screw rods are fixedly mounted on opposite surfaces of two vertical plates of the soot blower frame, gas delivery rods are sleeved on the outer surfaces of the screw rods in a threaded manner, a soot blowing mechanism is arranged in the soot blower frame, and the gas delivery rods are connected with the soot blower frame. And the soot blowing mechanism comprises air compression equipment, a motor, a first belt wheel, a belt, a gas conveying rod, a second belt wheel, a bearing, a moving block, a spray head, a sliding groove, two first springs, two fixing plates, a circular ring, two spring grooves and two sliding holes. In this way, the spray head can be quickly disassembled and replaced, the rubber sealing ring is arranged in the spray head, the gas conveying rod is completely wrapped by the rubber sealing ring for sealing, gas leakage is prevented, the gas tightness during soot blowing is improved, and soot blowing is more effective.

Description

Technical Field

[0001] This utility model relates to the field of soot blower technology, specifically a telescopic soot blowing device for boilers. Background Technology

[0002] Currently, the soot blowing equipment installed in power plant boilers mainly includes steam soot blowers, sonic soot blowers, and shock wave soot blowers. Steam soot blowers are the traditional soot blowers, which are currently the most widely used and most effective, and are essential for boiler soot blowing. Due to the characteristics of their structure and the medium, coupled with the influence of high-temperature environment, soot blowing gun tubes are prone to jamming, malfunction, and air leakage, resulting in a relatively high equipment failure rate and requiring a high level of maintenance. Failure to address malfunctions over a long period of time can lead to damage to the tube wall.

[0003] In actual soot blowing, it is often necessary to adjust the position of the high-speed airflow to ensure the impact velocity of the high-speed airflow. Therefore, nozzles are needed to guide the high-speed airflow. A single nozzle is a consumable and may be damaged due to various factors such as low soot blowing pressure, excessively frequent soot blowing cycles, incomplete condensation removal, improper nozzle installation, and nozzles being too close to the heating surface. Therefore, a quick-replacement nozzle is needed. In view of this, a telescopic soot blowing device for boilers is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a telescopic soot blowing device for boilers, which solves the problem of inconvenient replacement of soot blower nozzles.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned purpose of facilitating the replacement of sootblower nozzles, this utility model provides the following technical solution: a telescopic sootblowing device for boilers, including a sootblower frame, with screws fixedly installed on the opposite sides of the two vertical plates of the sootblower frame, and a gas conveying rod threaded on the outer surface of the screws;

[0008] The soot blowing machine frame is equipped with a soot blowing mechanism, which includes an air compressor, a motor, a first pulley, a belt, a gas conveying rod, a second pulley, a bearing, a moving block, a nozzle, a slide, two first springs, two fixed plates, a ring, two spring grooves, two sliding holes, two second springs, two fixed blocks, two fixed rollers, two locking holes, and a rubber sealing ring.

[0009] Preferably, the two bearings are fixedly mounted on the outer surface of the gas conveying rod, and the moving block is fixedly sleeved on the outer surface of the two bearings;

[0010] The air compressor is fixedly installed on the upper surface of the moving block, and the air compressor is connected to the gas delivery rod through an air pipe.

[0011] Preferably, the motor is fixedly mounted on the right surface of the air compressor, the first pulley is fixedly sleeved on the outer surface of the motor output shaft, and the belt drive is connected to the outer surface of the first pulley;

[0012] The second pulley is connected to the inner surface of the belt and is fixedly sleeved on the outer surface of the gas conveying rod.

[0013] Preferably, the nozzle is disposed on the outer surface of the gas conveying rod, the slide groove is formed on the outer surface of the nozzle, two spring grooves are formed in the inner wall of the slide groove, and two sliding holes are respectively formed in the inner wall of the two spring grooves.

[0014] Preferably, the two first springs are fixedly installed in the inner wall of the slide groove, and the two fixing plates are respectively fixedly installed on the right end of the two first springs, and the right surface of the two fixing plates is set as an inclined plane.

[0015] The circular ring is fixedly sleeved on the outer surface of the two fixing plates.

[0016] Preferably, the two second springs are respectively fixedly installed in the inner walls of the two spring grooves, the two fixing blocks are respectively fixedly installed on the opposite ends of the two second springs, the opposite surfaces of the two fixing blocks are both inclined, and the two fixing rods are respectively fixedly installed on the opposite surfaces of the two fixing blocks;

[0017] The rubber sealing ring is fixedly installed in the inner wall of the nozzle, and two locking holes are respectively opened on the outer surface of the gas delivery rod.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this utility model provides a telescopic soot blowing device for boilers, which has the following beneficial effects:

[0020] 1. This telescopic boiler soot blowing device can install the nozzle by snap-fitting, which allows for quick disassembly and replacement of the nozzle. The nozzle is equipped with a rubber sealing ring, which completely surrounds the gas conveying rod to prevent gas leakage, improve the airtightness during soot blowing, and make soot blowing more effective.

[0021] 2. The telescopic boiler soot blowing device drives the gas conveying rod to rotate through the first pulley, the second pulley and the belt. Compared with the method of using chains and sprockets to drive the gas conveying rod, this method has less noise and lower maintenance costs, which helps to reduce cost expenditures. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a telescopic soot blowing device for a boiler according to the present invention;

[0023] Figure 2 This is a schematic diagram of the frame structure of the soot blowing machine of this utility model;

[0024] Figure 3 This is a schematic diagram of the nozzle structure of this utility model;

[0025] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0026] In the diagram: 1. Soot blower frame; 2. Screw; 3. Air compressor; 4. Motor; 5. Pulley; 6. Belt; 7. Gas delivery rod; 8. Second pulley; 9. Bearing; 10. Moving block; 11. Nozzle; 12. Slide groove; 13. First spring; 14. Fixing plate; 15. Ring; 16. Spring groove; 17. Slide hole; 18. Second spring; 19. Fixing block; 20. Fixing rod; 21. Locking hole; 22. Rubber sealing ring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-4 This utility model provides a new technical solution: a telescopic boiler soot blowing device, including a soot blowing machine frame 1, with screws 2 fixedly installed on the opposite sides of the two vertical plates of the soot blowing machine frame 1, and a gas conveying rod 7 threaded on the outer surface of the screws 2.

[0029] The soot blowing machine frame 1 is equipped with a soot blowing mechanism, which includes an air compressor 3, a motor 4, a first pulley 5, a belt 6, a gas conveying rod 7, a second pulley 8, a bearing 9, a moving block 10, a nozzle 11, a slide 12, two first springs 13, two fixing plates 14, a ring 15, two spring grooves 16, two sliding holes 17, two second springs 18, two fixing blocks 19, two fixing rods 20, two locking holes 21, and a rubber sealing ring 22.

[0030] Furthermore, two bearings 9 are fixedly installed on the outer surface of the gas conveying rod 7, and the moving block 10 is fixedly sleeved on the outer surface of the two bearings 9;

[0031] The air compressor 3 is fixedly installed on the upper surface of the movable block 10, and the air compressor 3 is connected to the gas delivery rod 7 through an air pipe.

[0032] Furthermore, the motor 4 is fixedly mounted on the right surface of the air compressor 3, the first pulley 5 is fixedly sleeved on the outer surface of the output shaft of the motor 4, and the belt 6 is connected to the outer surface of the first pulley 5.

[0033] The second pulley 8 is connected to the inner surface of the belt 6 and is fixedly sleeved on the outer surface of the gas conveying rod 7.

[0034] Furthermore, the nozzle 11 is disposed on the outer surface of the gas delivery rod 7, the slide groove 12 is formed on the outer surface of the nozzle 11, two spring grooves 16 are formed in the inner wall of the slide groove 12, and two sliding holes 17 are respectively formed in the inner wall of the two spring grooves 16.

[0035] Furthermore, two first springs 13 are fixedly installed in the inner wall of the slide groove 12, and two fixing plates 14 are respectively fixedly installed on the right end of the two first springs 13, with the right surface of the two fixing plates 14 being inclined.

[0036] The ring 15 is fixedly sleeved on the outer surface of the two fixing plates 14.

[0037] Furthermore, two second springs 18 are respectively fixedly installed in the inner walls of two spring grooves 16, two fixing blocks 19 are respectively fixedly installed on opposite ends of the two second springs 18, the opposite surfaces of the two fixing blocks 19 are both inclined, and two fixing rods 20 are respectively fixedly installed on the opposite surfaces of the two fixing blocks 19.

[0038] Among them, the rubber sealing ring 22 is fixedly installed in the inner wall of the nozzle 11, and the two locking holes 21 are respectively opened on the outer surface of the gas conveying rod 7;

[0039] When using this telescopic boiler soot blowing device, starting the motor 4 causes it to output power to the first pulley 5, which is fixedly mounted on the outer surface of the output shaft, causing it to rotate. The first pulley 5 drives the belt 6, which is connected to the outer surface, to rotate. The belt 6 then drives the second pulley 8, which is connected to the inner surface, to rotate. The second pulley 8 then drives the gas conveying rod 7, which is fixedly mounted on the inner surface, to rotate. At this time, the gas conveying rod 7 moves continuously to the right through the thread on the outer surface of the screw 2. While the gas conveying rod 7 is rotating, the bearing will also rotate on its own axis, but the rotation will not be transmitted to the moving block. 10. The movable block 10 can only move left and right. Simultaneously, the movable block 10 drives the air compressor 3, which is fixedly mounted on the upper surface, to move to the right, extending the gas conveying rod 7 into the boiler for soot blowing. When the nozzle 11 needs to be replaced, the ring 15 is pushed to the left. The ring 15 drives the two fixed plates 14, which are fixedly mounted on the inner surface, to move to the left. As the two fixed plates 14 move to the left, they apply pressure to the two first springs 13, causing them to contract. At this time, the two fixed blocks 19 are no longer under the pressure of the two fixed plates 14, and the two second springs 18 are no longer under force. The second spring 18 expands, and the two second springs 18 apply opposing thrusts to the two fixed blocks 19 fixed at opposite ends, causing them to move towards opposite directions. Simultaneously, the two fixed blocks 19 drive the two fixed rods 20 fixed on opposite sides to move towards opposite directions and retract into the nozzle 11. At this point, the nozzle 11 is inserted into the outer surface of the gas delivery rod 7, and the two sliding holes 17 on the nozzle 11 are aligned with the two locking holes 21 opened on the outer surface of the gas delivery rod 7. At this point, no further thrust is applied to the two rings 15, and the two first springs 13 are no longer under force. 3. Expansion occurs, and the two first springs 13 apply a rightward pushing force to the two fixed plates 14 fixed at the right end, causing them to move to the right. At this time, the inclined surfaces of the two fixed plates 14 collide with the inclined surfaces of the two fixed blocks 19. The two fixed plates 14 apply a relative pushing force to the two fixed blocks 19, and the two fixed blocks 19 apply a relative pushing force to the two fixed rods 20 fixed at opposite surfaces, causing them to move towards the opposite surfaces and engage with the two locking holes 21 opened on the outer surface of the gas conveying rod 7 for fixation. After installation, the rubber sealing ring wraps around the outer surface of the gas conveying rod 7 to improve airtightness.

[0040] This telescopic boiler soot blowing device allows for the installation of the nozzle 11 via a snap-fit ​​mechanism, enabling quick disassembly and replacement. The nozzle 11 is equipped with a rubber sealing ring 22, which completely encloses the gas conveying rod 7 to prevent gas leakage, improving airtightness during soot blowing and making the process more effective. Furthermore, this telescopic boiler soot blowing device drives the gas conveying rod 7 via a first pulley 5, a second pulley 8, and a belt 6. Compared to using a chain and sprocket to drive the gas conveying rod 7, this method results in lower noise and maintenance costs, helping to reduce overall expenses.

[0041] Working principle: When using this telescopic boiler soot blowing device, starting the motor 4 causes the motor 4 to output power to the first pulley 5 fixedly mounted on the outer surface of the output shaft, causing it to rotate. The first pulley 5 drives the belt 6 connected to the outer surface to rotate, which in turn drives the second pulley 8 connected to the inner surface to rotate. The second pulley 8 then drives the gas conveying rod 7 fixedly mounted on the inner surface to rotate. At this time, the gas conveying rod 7 continuously moves to the right through the thread on the outer surface of the screw 2. While the gas conveying rod 7 is rotating, the bearing will also rotate, without transmitting the rotational power. Moving block 10 can only move left and right. Simultaneously, moving block 10 drives the air compressor 3, fixedly mounted on its upper surface, to move to the right, extending the gas delivery rod 7 into the boiler for soot blowing. When the nozzle 11 needs to be replaced, pushing ring 15 to the left causes ring 15 to move the two fixed plates 14, fixedly mounted on its inner surface, to the left. As the two fixed plates 14 move to the left, they apply pressure to the two first springs 13, causing them to contract. At this time, the two fixed blocks 19 are no longer under pressure from the two fixed plates 14, and the two second springs 18 are no longer under force. At this time, the two second springs 18 expand, and the two second springs 18 apply opposing thrusts to the two fixed blocks 19 fixed at opposite ends, causing them to move towards the opposite side. At the same time, the two fixed blocks 19 drive the two fixed rods 20 fixed on opposite sides to move towards the opposite side and retract into the nozzle 11. At this time, the nozzle 11 is inserted into the outer surface of the gas conveying rod 7, and the two sliding holes 17 on the nozzle 11 are aligned with the two locking holes 21 opened on the outer surface of the gas conveying rod 7. At this time, no thrust is applied to the two rings 15, and the two first springs 13 are no longer under force. When expansion occurs, the two first springs 13 apply a rightward pushing force to the two fixed plates 14 fixed at the right end, causing them to move to the right. At this time, the inclined surfaces of the two fixed plates 14 collide with the inclined surfaces of the two fixed blocks 19. The two fixed plates 14 apply a relative surface pushing force to the two fixed blocks 19, and the two fixed blocks 19 apply a relative surface pushing force to the two fixed rods 20 fixed at opposite surfaces, causing them to move towards the opposite surface and engage with the two locking holes 21 opened on the outer surface of the gas conveying rod 7 for fixation. After installation, the rubber sealing ring wraps around the outer surface of the gas conveying rod 7 to improve airtightness.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A telescopic boiler soot blowing device, comprising a soot blowing machine frame (1), wherein screws (2) are fixedly installed on the opposite surfaces of two vertical plates of the soot blowing machine frame (1), characterized in that: The outer surface of the screw (2) is threaded with a gas conveying rod (7); The soot blowing machine frame (1) is equipped with a soot blowing mechanism, which includes an air compressor (3), a motor (4), a first pulley (5), a belt (6), a gas conveying rod (7), a second pulley (8), a bearing (9), a moving block (10), a nozzle (11), a slide (12), two first springs (13), two fixing plates (14), a ring (15), two spring grooves (16), two sliding holes (17), two second springs (18), two fixing blocks (19), two fixing rods (20), two locking holes (21), and a rubber sealing ring (22).

2. The telescopic soot blowing device for a boiler according to claim 1, characterized in that: The two bearings (9) are fixedly installed on the outer surface of the gas conveying rod (7), and the moving block (10) is fixedly sleeved on the outer surface of the two bearings (9); The air compressor (3) is fixedly installed on the upper surface of the moving block (10), and the air compressor (3) is connected to the gas conveying rod (7) through an air pipe.

3. The telescopic soot blowing device for a boiler according to claim 1, characterized in that: The motor (4) is fixedly installed on the right surface of the air compressor (3), the first pulley (5) is fixedly sleeved on the outer surface of the output shaft of the motor (4), and the belt (6) is connected to the outer surface of the first pulley (5). The second pulley (8) is connected to the inner surface of the belt (6) and is fixedly sleeved on the outer surface of the gas conveying rod (7).

4. A telescopic soot blowing device for a boiler according to claim 1, characterized in that: The nozzle (11) is disposed on the outer surface of the gas conveying rod (7), the slide groove (12) is opened on the outer surface of the nozzle (11), two spring grooves (16) are opened in the inner wall of the slide groove (12), and two sliding holes (17) are respectively opened in the inner wall of the two spring grooves (16).

5. A telescopic soot blowing device for a boiler according to claim 1, characterized in that: Two first springs (13) are fixedly installed in the inner wall of the slide (12), and two fixing plates (14) are fixedly installed on the right end of the two first springs (13) respectively. The right surface of the two fixing plates (14) is set as an inclined plane. Among them, the ring (15) is fixedly sleeved on the outer surface of the two fixing plates (14).

6. A telescopic soot blowing device for a boiler according to claim 1, characterized in that: Two second springs (18) are respectively fixedly installed in the inner walls of two spring grooves (16), two fixing blocks (19) are respectively fixedly installed on opposite ends of two second springs (18), the opposite surfaces of the two fixing blocks (19) are both inclined, and two fixing rods (20) are respectively fixedly installed on opposite surfaces of the two fixing blocks (19). Among them, the rubber sealing ring (22) is fixedly installed in the inner wall of the nozzle (11), and the two locking holes (21) are respectively opened on the outer surface of the gas conveying rod (7).

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