An acoustic sootblower for a boiler backpass

Abstract

This utility model relates to the field of boiler technology, and discloses an acoustic soot blower for the tail flue of a boiler, including a horn, and further comprising: a connecting flange fixedly connected to the outside of the horn, one end of the horn being connected to a sound generator, one side of the sound generator being connected to a connecting hose, a base plate being provided at the bottom of the sound generator, and a protective box being fixedly connected to the bottom of the sound generator; a protective component being disposed on the outside of the sound generator, the protective component including a first airbag fixedly connected to one side of the inner wall of the protective box, a second airbag being provided at the top of the inner cavity of the protective box, a reinforcing plate being fixedly connected to the bottom of the base plate, an elastic rod being fixedly connected to the bottom of the reinforcing plate, and an inclined plate being fixedly connected to the front surface of the base plate; this utility model, through the protective component, can position and protect the sound generator, preventing boiler vibration from causing loosening of the connections between the internal components of the sound generator, thus ensuring the normal operation of the sound generator.

Description

Technical Field

[0001] This utility model relates to the field of boiler technology, specifically to an acoustic soot blower for use in the tail flue of a boiler. Background Technology

[0002] A boiler is an energy conversion device. The energy input to a boiler includes the chemical energy of fuel and electrical energy. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. Among them, the flue gas of coal-fired units has a high fly ash content. Soot blowers are usually installed in SCR reactors to remove particulate matter covering the active surface of the catalyst and blocking the airflow channels. They can also keep the air preheater channels unobstructed and reduce the system pressure drop.

[0003] Currently, sonic soot blowers are gradually being used. The sonic soot blower releases sound waves to generate vibrations, which loosen the dust accumulated on the surface of the catalytic converter. In this way, the airflow can carry away the dust. When some sonic soot blowers are in use, their generators are installed on the outside of the boiler via fixed brackets. When the boiler is working normally, a certain degree of vibration may be generated. After long-term use, the connection between the internal components of the generator may become loose, thus affecting the normal use of the generator. Utility Model Content

[0004] The purpose of this invention is to provide an acoustic soot blower for boiler tail flue gas ducts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an acoustic soot blower for boiler tail flue, including a horn, and further comprising: A connecting flange is fixedly connected to the outside of the speaker. One end of the speaker is connected to a sound generator. One side of the sound generator is connected to a connecting hose. A base plate is provided at the bottom of the sound generator. A protective box is fixedly connected to the bottom of the sound generator. A protective assembly is disposed on the outside of the sound generator. The protective assembly includes a first airbag fixedly connected to one side of the inner wall of the protective box, a second airbag disposed at the top of the inner cavity of the protective box, a reinforcing plate fixedly connected to the bottom of the base plate, an elastic rod fixedly connected to the bottom of the reinforcing plate, and an inclined plate fixedly connected to the front surface of the base plate.

[0006] Preferably, the protective box has a through hole for use with a connecting hose, the top of the first airbag is connected to a first connecting pipe, and the end of the first connecting pipe away from the first airbag is connected to one side of the second airbag.

[0007] Preferably, the rear surface of the second airbag is connected to a second connecting pipe, and the front surface of the second airbag is connected to a discharge pipe.

[0008] Preferably, a valve is provided on the outside of the discharge pipe, and a third airbag is fixedly connected to one side of the inner wall of the protective box, with the top of the third airbag communicating with one side of the second airbag.

[0009] Preferably, a connecting rod is rotatably connected to the outer side of the elastic rod, and a connecting seat is rotatably connected to the end of the connecting rod away from the elastic rod.

[0010] Preferably, a second spring is welded to the front surface of the connecting seat, and a damping seat is welded to the end of the second spring away from the connecting seat, and a fixing strip is fixedly connected to one end of the damping seat.

[0011] Preferably, a fixing bracket is fixedly connected to the bottom of the fixing strip, and a side plate is slidably connected inside the fixing bracket.

[0012] Preferably, a slider is slidably connected inside the side plate, the top of the slider is fixedly connected to the bottom of the inclined plate, a fixing rod is fixedly connected inside the side plate, the outer side of the fixing rod is slidably connected to the outer side of the slider, and a first spring is sleeved on the outer side of the fixing rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention, by setting up protective components, can stably clamp the transmitter under the action of the first and second airbags, preventing the transmitter from colliding with the inside of the protective box and protecting the electronic components inside the transmitter. At the same time, the pressure generated by the vibration of the fixed bracket causes the base plate to exert a certain degree of pressure on the elastic rod. Under the action of multiple dampers, the pressure can be weakened to a certain extent, thereby reducing the vibration amplitude and frequency of the transmitter and protecting the electronic components inside the transmitter. Attached Figure Description

[0014] Figure 1 A three-dimensional structural schematic diagram of the acoustic soot blower for the tail flue of a boiler provided by this utility model; Figure 2 This is a schematic diagram showing the connection between the protective box and the fixed bracket structure of this utility model; Figure 3 This is a schematic diagram showing the connection between the first and second airbags of this utility model. Figure 4 This is a schematic diagram showing the connection between the base plate and the fixed bracket structure of this utility model; Figure 5 This utility model Figure 4 A magnified schematic diagram of the structure at point A shown.

[0015] In the diagram: 1. Horn; 2. Connecting flange; 3. Sound generator; 4. Connecting hose; 5. Base plate; 6. Protective components; 601. First airbag; 602. Second airbag; 603. Reinforcing plate; 604. Elastic rod; 605. Inclined plate; 7. Through hole; 8. Protective box; 9. First connecting pipe; 10. Second connecting pipe; 11. Valve; 12. Discharge pipe; 13. Third airbag; 14. Slider; 15. Side plate; 16. First spring; 17. Fixing rod; 18. Connecting rod; 19. Connecting seat; 20. Second spring; 21. Damping seat; 22. Fixing strip; 23. Fixing bracket. Detailed Implementation

[0016] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0017] Please see Figure 1-5 As shown, an acoustic soot blower for a boiler tail flue includes a horn 1 and a connecting flange 2 fixedly connected to the outside of the horn 1. The connecting flange 2 ensures a stable connection between the horn 1 and the boiler. One end of the horn 1 is connected to a sound generator 3. The sound generator 3 contains a resonant cavity, a pressure stabilizing cavity, and a resonant chamber. A connecting hose 4 is connected to an external air source, which can be air or steam. Compressed air enters the pressure stabilizing cavity and is injected into the resonant chamber through an annular nozzle. The resulting sound wave is then amplified by the horn opening and transmitted forward in an ellipsoidal shape. This is prior art, as those skilled in the art will clearly understand. A base plate 5 is provided at the bottom of the sound generator 3, and a protective box 8 and a protective component 6 are fixedly connected to the bottom of the sound generator 3. The protective component 6 protects the sound generator 3, preventing leakage between the diaphragm and its connecting parts. The current loosening, thereby extending the service life of the sound generator 3 to a certain extent, is set on the outside of the sound generator 3. The protective component 6 includes a first airbag 601 fixedly connected to one side of the inner wall of the protective box 8, and a second airbag 602 set at the top of the inner cavity of the protective box 8. Under the action of multiple first airbags 601 and second airbags 602, the sound generator 3 can be clamped and positioned, thereby reducing the vibration frequency and vibration amplitude of the sound generator 3. A reinforcing plate 603 is fixedly connected to the bottom of the base plate 5, and an elastic rod 604 is fixedly connected to the bottom of the reinforcing plate 603. When the base plate 5 vibrates to a certain extent, a certain pressure can be applied to the elastic rod 604, causing the elastic rod 604 to deform to a certain extent. An inclined plate 605 is fixedly connected to the front surface of the base plate 5. Under the action of the inclined plate 605, the connection between the base plate 5 and the fixed bracket 23 can be stabilized.

[0018] The protective box 8 has an internal through hole 7 for use with the connecting hose 4. The through hole 7 facilitates the pulling and connection of the connecting hose 4 by the operator. A first connecting tube 9 is connected to the top of the first airbag 601. The end of the first connecting tube 9 away from the first airbag 601 is connected to one side of the second airbag 602. The multiple first connecting tubes 9 allow the first airbag 601 and the second airbag 602 to be connected, thus facilitating the user to adjust the inflation level of the first airbag 601 and the second airbag 602. A second connecting tube is connected to the rear surface of the second airbag 602. Pipe 10, the front surface of the second airbag 602 is connected to the discharge pipe 12, and a valve 11 is provided on the outside of the discharge pipe 12. By opening or closing the valve 11, the inflation degree of the first airbag 601 and the second airbag 602 can be adjusted through the discharge pipe 12. A third airbag 13 is fixedly connected to one side of the inner wall of the protective box 8. The top of the third airbag 13 is connected to one side of the second airbag 602. A connecting rod 18 is rotatably connected to the outside of the elastic rod 604. When the elastic rod 604 is subjected to a certain pressure, a certain degree of displacement will occur, which can drive the connecting rod 18 to move. The connecting rod 18 is rotatably connected to a connecting seat 19 at the end away from the elastic rod 604. A second spring 20 is welded to the front surface of the connecting seat 19, and a damping seat 21 is welded to the end of the second spring 20 away from the connecting seat 19. When the connecting rod 18 moves, a certain pressure can be applied to the damping seat 21 through the second spring 20, thereby weakening the transmitted pressure to a certain extent under the action of the damping seat 21. A fixing strip 22 is fixedly connected to one end of the damping seat 21, and a fixing bracket 23 is fixedly connected to the bottom of the fixing strip 22. A side plate 15 is slidably connected inside the fixing bracket 23. The plate 15 has a slider 14 slidably connected inside. The top of the slider 14 is fixedly connected to the bottom of the inclined plate 605. Under the action of the slider 14, the inclined plate 605 can have a certain range of displacement, which allows the inclined plate 605 and the fixed bracket 23 to perform a certain range of displacement compensation. The side plate 15 has a fixed rod 17 fixedly connected inside. The outer side of the fixed rod 17 is slidably connected to the outer side of the slider 14. A first spring 16 is sleeved on the outer side of the fixed rod 17. Under the action of the first spring 16, the inclined plate 605 and the fixed bracket 23 can be reset after displacement compensation.

[0019] Working principle: When the operator uses this device to protect the sound generator 3, the boiler will generate a certain degree of vibration during long-term use. The vibration is transmitted to the protective box 8 and the sound generator 3 through the fixed bracket 23. Under the action of multiple first airbags 601 and multiple second airbags 602, the sound generator 3 can be clamped and positioned, thus making the sound generator 3 stable and preventing the connection between the precision components inside the sound generator 3 from loosening. At the same time, when the base plate 5 is subjected to a certain vibration, it will compress the elastic rod 604 to a certain extent, thereby causing the connecting rod 18 to move. When the connecting rod 18 moves, it can drive the connecting seat 19 to slide inside the fixed strip 22. Then, the second spring 20 applies a certain pressure to the damping seat 21. Under the action of the damping seat 21, the pressure transmitted by the second spring 20 can be weakened. At the same time, under the elastic force of the elastic rod 604 and the second spring 20, the protective box 8 can be slowly reset through the base plate 5, thereby protecting the precision components inside the sound generator 3.

[0020] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An acoustic sootblower for a boiler backpass comprising a horn (1), characterised in that, Also includes: A connecting flange (2) is fixedly connected to the outside of the horn (1). One end of the horn (1) is connected to a sound generator (3). One side of the sound generator (3) is connected to a connecting hose (4). A base plate (5) is provided at the bottom of the sound generator (3). A protective box (8) is fixedly connected to the bottom of the sound generator (3). The protective component (6) is located on the outside of the sound generator (3). The protective component (6) includes a first airbag (601) fixedly connected to one side of the inner wall of the protective box (8), a second airbag (602) is provided at the top of the inner cavity of the protective box (8), a reinforcing plate (603) is fixedly connected to the bottom of the base plate (5), an elastic rod (604) is fixedly connected to the bottom of the reinforcing plate (603), and an inclined plate (605) is fixedly connected to the front surface of the base plate (5).

2. The acoustic soot blower for boiler tail flue according to claim 1, characterized in that: The protective box (8) has a through hole (7) inside that is used in conjunction with the connecting hose (4). The top of the first airbag (601) is connected to a first connecting pipe (9). The end of the first connecting pipe (9) away from the first airbag (601) is connected to one side of the second airbag (602).

3. The acoustic soot blower for boiler tail flue according to claim 1, characterized in that: The rear surface of the second airbag (602) is connected to a second connecting pipe (10), and the front surface of the second airbag (602) is connected to an exhaust pipe (12).

4. The acoustic soot blower for boiler tail flue according to claim 3, characterized in that: A valve (11) is provided on the outside of the discharge pipe (12), and a third airbag (13) is fixedly connected to one side of the inner wall of the protective box (8). The top of the third airbag (13) is connected to one side of the second airbag (602).

5. The acoustic soot blower for boiler tail flue according to claim 1, characterized in that: A connecting rod (18) is rotatably connected to the outer side of the elastic rod (604), and a connecting seat (19) is rotatably connected to the end of the connecting rod (18) away from the elastic rod (604).

6. The acoustic soot blower for boiler tail flue according to claim 5, characterized in that: A second spring (20) is welded to the front surface of the connecting seat (19). A damping seat (21) is welded to the end of the second spring (20) away from the connecting seat (19). A fixing strip (22) is fixedly connected to one end of the damping seat (21).

7. The acoustic soot blower for boiler tail flue according to claim 6, characterized in that: The bottom of the fixing strip (22) is fixedly connected to a fixing bracket (23), and the inside of the fixing bracket (23) is slidably connected to a side plate (15).

8. The acoustic soot blower for boiler tail flue according to claim 7, characterized in that: The side plate (15) is slidably connected to a slider (14), the top of the slider (14) is fixedly connected to the bottom of the inclined plate (605), the side plate (15) is fixedly connected to a fixing rod (17), the outside of the fixing rod (17) is slidably connected to the outside of the slider (14), and a first spring (16) is sleeved on the outside of the fixing rod (17).

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