A new type of sound hammer

Abstract

This application relates to the field of acoustic cleaning and dust removal, and in particular to a novel acoustic hammer, which includes an acoustic vibration amplifier, an acoustic vibration generator, a pressure-stabilizing gas supply mechanism, a sound-insulating sleeve, and a supporting rod. The acoustic vibration generator includes an input plate, a sound-generating plate, an output plate, and a motor. The input plate is provided with an airflow inlet, and the output plate is provided with a sound output outlet. The sound-generating plate is located inside the cavity between the input plate and the output plate. The motor is located on the outside of the input plate, and the end face of the motor is detachably and fixedly connected to the surface of the input plate away from the output plate. The motor output shaft is fixedly connected to the sound-generating plate. The sound-insulating sleeve is welded to the mounting sealing box and sealed with a meniscus. The airflow inlet on the input plate is connected to the gas storage tank through a pipe. The acoustic vibration amplifier is connected to the sound output outlet. The supporting rod is located between the acoustic vibration generator and the sound-insulating sleeve, and both ends of the supporting rod are connected to both. This application has the effect of improving boiler cleaning efficiency.

Description

Technical Field

[0001] This application relates to the field of acoustic dust removal, and in particular to a novel acoustic hammer. Background Technology

[0002] A sonic hammer is a type of acoustic ash removal device. It mainly uses high-power sound waves to intermittently vibrate for a short period of time, mimicking the mechanical hammering ash removal process, thereby achieving the ash removal effect. In use, sonic hammers are typically used in the tail flue of coal-fired boilers and in electrostatic precipitators.

[0003] Currently, the main method for ash removal in the tail flue of coal-fired boilers and electrostatic precipitators is mechanical hammering. Multiple rows of mechanical hammers are distributed inside the precipitator to periodically strike the electrode plates, knocking the accumulated ash on the electrode plates into the ash hopper in chunks. However, this method is not thorough, and large areas of clumps of ash remain on the electrode plates after ash removal, reducing the effective usable area of ​​the electrode plates and resulting in low efficiency of the electrostatic precipitator.

[0004] In recent years, acoustic hammers have been introduced into the ash removal process of coal-fired boiler tail flues and electrostatic precipitators. As a result, the acoustic soot blowers emit sound waves that disturb the dust particles, causing the dust particles to become loose and not fall off the electrode plates in block form. Instead, they fly out of the electrostatic precipitator through the tail flue in fine particles and emerge from the chimney, resulting in the power plant failing to meet environmental protection standards. Summary of the Invention

[0005] In order to improve the dust removal efficiency of electrostatic precipitators, this application provides a novel acoustic hammer.

[0006] A novel acoustic hammer includes an acoustic vibration amplifier, an acoustic vibration generator, and a pressure-stabilizing air supply mechanism. The acoustic vibration amplifier and the pressure-stabilizing air supply mechanism are disposed at one end of the acoustic vibration generator. The acoustic vibration generator includes an input plate, a sound-generating plate, an output plate, and a motor. The input plate is provided with an airflow inlet, and the output plate is provided with a sound output outlet. The input plate and the output plate are interlocked and fixed, and a cavity is formed between the input plate and the output plate. The airflow inlet and the sound output outlet share a common center line. The sound-generating plate is disposed inside the cavity between the input plate and the output plate. Gaps are left between the sound-generating plate and the surfaces of the input plate and the output plate, forming a smooth air passage inside the input plate and the output plate. Multiple airflow cutting holes are evenly distributed circumferentially on the outer periphery of the sound-generating plate. The motor is disposed on the outer side of the input plate. The end face of the motor is detachably and fixedly connected to the surface of the input plate away from the output plate. The output shaft of the motor is detachably and fixedly connected to the center of the sound-generating plate. The airflow cutting holes share a common center line with the airflow inlet and the sound output outlet. The airflow inlet, the airflow cutting holes, and the sound output outlet form a smooth air passage. The airflow inlet on the input panel is connected to the pressure-stabilizing air supply mechanism via a pipe; the acoustic vibration amplifier is connected to the acoustic output port, and the end of the pressure-stabilizing air supply mechanism away from the acoustic vibration generator is connected to an external air source pipe. The outer cover of the sound vibration generator is equipped with a sound insulation cover. The end of the sound insulation cover away from the pressure stabilizing gas supply mechanism is fixedly connected to a sound insulation sleeve. A support rod is provided inside the sound insulation cover. The sound insulation sleeve is fixedly connected to the sound vibration amplifier. One end of the sound vibration amplifier passes through the inside of the sound insulation sleeve and is connected to the sound vibration generator. The sound insulation sleeve is installed and welded to the boiler body sealing box. One end of the support rod is connected to the sound insulation sleeve, and the other end is connected to the output panel.

[0007] By adopting the above technical solution, the acoustic vibration amplifier, acoustic vibration generator, and pressure-stabilized gas supply system provided in this application can, during the ash removal process, transmit the gas from the pressure-stabilized gas supply system through the acoustic vibration generator to the acoustic vibration amplifier. Furthermore, as the motor drives the generator disc to rotate, the gas can be intermittently emitted from the acoustic vibration generator through the airflow cutting hole. This intermittent gas emission generates intermittent vibration impacts on the accumulated ash on the electrode plate, thereby facilitating the ash to fall off in block form, thus effectively improving the efficiency of ash removal. The soundproof sleeve fixedly connected to the soundproof cover provides effective support for the acoustic vibration generator and provides sound insulation for the furnace. The support rods inside the soundproof enclosure serve as a connection and support, used to fix the soundproof sleeve to the output panel. The pressure-stabilizing gas supply mechanism located on the outside of the soundproof enclosure increases the gas storage volume, allowing the flow stabilizer to store a certain amount of gas, preventing damage to the equipment from sudden changes in gas pressure. This pressure-stabilizing mechanism also prevents poor dust removal efficiency due to insufficient gas pressure. Furthermore, the pressure-stabilizing gas supply mechanism on the outside of the soundproof enclosure reduces its overall size, preventing it from becoming too large and inconvenient to fix. The external gas source fixedly connected to the tail of the pressure-stabilizing gas supply mechanism continuously supplies gas to the gas storage tank, ensuring dust removal is possible even with insufficient gas.

[0008] Optionally, the pressure-stabilizing gas supply mechanism is equipped with a flow stabilizer, and the flow stabilizer has an internal hollow structure.

[0009] By adopting the above technical solution, the flow stabilizer installed on the pipeline allows high-pressure gas from the gas storage tank to be filled into the flow stabilizer during use. The gas then flows steadily along the elliptical inner wall of the flow stabilizer to the airflow inlet. The flow stabilizer can stabilize the pressure and slow the flow of the gas to the airflow inlet, preventing the airflow from directly impacting and damaging the sound generator. Furthermore, the flow stabilizer can prevent unstable pressure gas from directly filling the cavity between the output and input discs, preventing gas backflow and making the gas pressure passing through the sound vibration generator more stable, thereby improving the dust removal effect.

[0010] Optionally, the acoustic vibration amplifier is horn-shaped, and the acoustic vibration amplifier is composed of 2 or 3 pieces welded together.

[0011] By adopting the above technical solution, the problem of the outer diameter being too large during installation, making it impossible for the artificial hole and steam hole to enter, is solved; and the problem of increasing the weld length is solved, reducing the risk of weld cracking and falling off. The small end of the acoustic vibration amplifier is connected to the sound output port, and the acoustic vibration amplifier is in the form of 2 or 3 pieces, which makes it convenient for workers to install the sound wave amplifier in the tail flue of the coal-fired boiler and inside the electrostatic precipitator.

[0012] Optionally, the input disk includes a first connecting part, a second connecting part, and a third connecting part that are fixedly connected in sequence; the second connecting part has a through hole that extends from the outside to the inside, and the through hole is opened circumferentially along the second connecting part; the first connecting part is fixedly connected to the output disk by bolts; and the third connecting part is fixed to the end face of the motor by bolts.

[0013] By adopting the above technical solution, the motor output shaft passes through the input disk and is fixedly connected to the sound-generating disk located in the cavity between the input disk and the output disk, and drives the sound-generating disk to rotate. In this application, a through hole is provided on the second connecting part of the input disk, which extends to the space between the part of the motor output shaft that enters the input disk and the inner wall of the input disk that passes through the motor output shaft. The airflow that enters the space between the inner wall of the input disk and the motor output shaft from the gap between the input disk, the sound-generating disk and the output disk can be discharged from the sound vibration generator through the through hole on the second connecting part, thereby reducing the airflow that enters the motor through the space between the motor output shaft and the inner wall of the input disk, and thus reducing the dust carried by the airflow that enters the motor, which can effectively extend the service life of the motor and improve the stability of the sound vibration generator.

[0014] Optionally, a fixed cylinder is fixedly connected at the center of the sound-generating disc. The fixed cylinder passes through the second connecting part and extends toward the motor. The motor output shaft is inserted into the fixed cylinder and connected by a key and a keyway.

[0015] By adopting the above technical solution, the fixed cylinder can increase the connection strength between the motor output shaft and the sound-generating disc.

[0016] Optionally, a nut is threaded to the end of the motor output shaft, and a countersunk hole is provided at the center of the disc surface away from the fixed cylinder. The nut can press the disc and screw it into the countersunk hole.

[0017] By adopting the above technical solution, the nut threaded onto the motor output shaft makes the connection between the sound-generating disc and the motor output shaft more secure, preventing the connection between the motor and the sound-generating disc from becoming unstable after the sound-generating disc has been used for a long time, which could easily cause wear between the sound-generating disc and the output and input discs. On the other hand, the threaded connection makes it easy to disassemble the sound-generating disc from the motor output shaft, and it is convenient to replace the sound-generating disc when it is damaged.

[0018] Optionally, the outer wall of the fixed cylinder is fitted with an annular guide ring, the outer side of the guide ring abuts against the inner wall of the second connecting part, and the guide ring corresponds to the through hole.

[0019] By adopting the above technical solution, the guide ring plays the role of guiding the gas flow. The guide ring blocks the airflow that enters the space between the inner wall of the input plate and the motor output shaft from entering the motor through the gap between the input plate, the sound plate and the output plate. At the same time, under the obstruction of the guide ring, the airflow is discharged from the input plate through the through hole of the second connection part.

[0020] Optionally, the fixed cylinder is fitted with a pressure-resistant oil seal at both the end near the sound-generating disk and the end away from the sound-generating disk, and the outer side of the pressure-resistant oil seal abuts against the inner wall of the second connecting part.

[0021] By adopting the above technical solution, a pressure-resistant oil seal is fitted outside the motor output shaft. The side of the pressure-resistant oil seal closest to the motor output shaft abuts against the position closest to the motor output shaft, while the side furthest from the motor output shaft abuts against the inner wall of the input disc, thereby sealing the space between the motor output shaft and the input disc. The pressure-resistant oil seal is close to the sound-generating disc, effectively blocking airflow from entering the space between the motor output shaft and the inner wall of the input disc through the gaps between the input disc, the sound-generating disc, and the output disc. This ensures maximum air pressure and sound wave effect within the cavity, reducing the amount of airflow that may enter the motor, and consequently reducing the amount of dust that may be carried into the motor by the airflow.

[0022] Optionally, the inner wall of the second connecting part extends toward the fixed cylinder to form an annular first limiting part, and the first limiting part abuts against the pressure-resistant oil seal of the fixed cylinder away from the sound-generating disc.

[0023] By adopting the above technical solution, the sealing ring is positioned by the first limiting part, thereby improving the sealing effect of the pressure-resistant oil seal, effectively blocking the airflow from entering the inner wall of the input plate and the motor output shaft, and improving the effective utilization rate of the airflow.

[0024] Optionally, a nylon support ring is also fitted on the outer wall of the fixed cylinder. The nylon support ring is located between the guide ring and the pressure-resistant oil seal on the fixed cylinder near the sound-generating disk. The side of the nylon support ring near the sound-generating disk abuts against the pressure-resistant oil seal, and the outer circumferential surface of the nylon support ring abuts against the inner wall of the second connecting part.

[0025] By adopting the above technical solution, the nylon support ring further improves the sealing effect of the gap between the input plate, the sound plate, and the output plate, blocking the airflow from entering the inner wall of the input plate and the motor output shaft from the gap between the input plate, the sound plate, and the output plate. This further improves the effective utilization rate of airflow and also acts as a bearing support, reducing the vibration of the sound plate and increasing the motor life. In addition, the nylon support ring can also play a supporting role, preventing vibration of the sound plate when it rotates at high speed, thus acting as a bearing.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The acoustic vibration amplifier, acoustic vibration generator, and pressure-stabilized gas supply system provided in this application, during the dust removal process, enable the gas in the pressure-stabilized gas supply system to be emitted by the acoustic vibration amplifier through the acoustic vibration generator. Furthermore, as the motor drives the generator disc to rotate, the gas is intermittently emitted from the acoustic vibration generator through the airflow cutting hole. This intermittent gas emission generates intermittent vibration impacts on the accumulated dust on the electrode plate, thereby facilitating the detachment of the accumulated dust on the electrode plate in block form, thus effectively improving the dust removal efficiency. The system is installed on the pressure-stabilized gas supply mechanism pipeline. The flow stabilizer, during use, allows high-pressure gas from the gas tank to first fill the flow stabilizer, causing the high-pressure gas to accumulate inside and maintain a constant pressure within the flow stabilizer. This also saturates the flow stabilizer with a certain amount of gas, preventing backflow. Then, the stable gas is introduced into the input and output plates. Furthermore, the flow stabilizer prevents gas with fluctuating pressure from directly filling the cavity between the output and input plates, stabilizing the gas pressure passing through the sound vibration generator. This ensures that each emitted gas effectively impacts the electrode plate, resulting in better dust removal. 2. A pressure-resistant oil seal is fitted outside the motor output shaft. The side of the pressure-resistant oil seal closest to the motor output shaft abuts against the position closest to the motor output shaft, while the side furthest from the motor output shaft abuts against the inner wall of the input disc, thereby sealing the space between the motor output shaft and the input disc. The pressure-resistant oil seal is located near the sound-generating disc, effectively blocking airflow from entering the space between the motor output shaft and the inner wall of the input disc through the gaps between the input disc, the sound-generating disc, and the output disc. This reduces the amount of airflow that may enter the motor at the source, thereby reducing the amount of dust that may be carried into the motor by the airflow. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram illustrating an acoustic vibration generator according to an embodiment of this application; Figure 3 This is a cross-sectional view illustrating the internal structure of the acoustic vibration generator in an embodiment of this application; Figure 4This is a schematic diagram illustrating the pressure-stabilizing gas supply mechanism in an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Acoustic vibration amplifier; 2. Acoustic vibration generator; 21. Input panel; 211. First connecting part; 212. Second connecting part; 2121. Through hole; 2122. Guide ring; 213. Third connecting part; 22. Sound generating plate; 221. Airflow cutting hole; 23. Output panel; 24. Motor; 25. Pressure-resistant oil seal; 26. Nylon support ring; 3. Pressure stabilizing gas supply mechanism; 31. Flow stabilizer; 32. Connecting pipe; 33. Solenoid valve; 34. Bypass pipe; 35. Ball valve; 36. Gas storage tank; 4. Sound insulation sleeve; 5. Supporting connecting rod; 6. Sound insulation cover; 7. Front-end pipe. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0030] This application discloses a novel acoustic hammer. (Refer to...) Figure 1 The acoustic hammer includes an acoustic vibration amplifier 1, an acoustic vibration generator 2, a pressure-stabilizing gas supply mechanism 3, a soundproof sleeve 4, and a support rod 5. The acoustic vibration amplifier 1, acoustic vibration generator 2, and pressure-stabilizing gas supply mechanism 3 are sequentially and detachably fixedly connected. The acoustic vibration amplifier 1 is located outside the soundproof sleeve 4 and at one end of the sleeve. The pressure-stabilizing gas supply mechanism 3 is located at the end of the sleeve 4 opposite to the acoustic vibration amplifier 1. The acoustic vibration generator 2 is located inside the sleeve 4. A front-end pipe 7 is fixedly connected to the end of the pressure-stabilizing gas supply mechanism 3 away from the acoustic vibration generator 2. An outwardly extending soundproof cover 6 is fixedly connected to the outer end of the sleeve 4 away from the pressure-stabilizing gas supply mechanism 3. The soundproof sleeve 4 communicates with the interior of the soundproof cover 6. One end of the acoustic vibration amplifier 1 passes through the interior of the soundproof sleeve 4 and... The acoustic vibration amplifier 1 is fixedly connected to the sound insulation sleeve 4 and the acoustic vibration generator 2 is connected to the sound vibration generator 2. The support rod 5 is set inside the sound insulation cover 6, and at least one pair of support rods 5 are provided. One end of the support rod 5 is detachably connected to one end of the sound insulation sleeve 4, and the other end is connected to the acoustic vibration generator 2. In use, the sound insulation sleeve 4 is fixedly installed on the boiler wall sealing box. The end of the acoustic vibration amplifier 1 away from the acoustic vibration amplifier 1 is located inside the boiler and electrostatic precipitator, and is aligned with the place where dust removal is required. The gas delivered by the pressure stabilizing gas supply mechanism 3 can enter the acoustic vibration generator 2. The acoustic vibration generator 2 generates vibration and enters the boiler and electrostatic precipitator through the acoustic vibration amplifier 1, thereby using the vibration of sound waves to cause the dust on the heat exchange surface and electrode plate to peel off, thus completing the dust removal.

[0031] Reference Figure 1 , Figure 2 and Figure 3The sound vibration generator 2 includes an input disk 21, a sound-generating disk 22, an output disk 23, and a motor 24. The input disk 21 and the output disk 23 are fastened together and fixed with bolts. A cavity is formed inside the input disk 21 and the output disk 23. The sound-generating disk 22 is located within the cavity between the input disk 21 and the output disk 23, with gaps between the sound-generating disk 22 and both the input disk 21 and the output disk 23. The motor 24 is located at the end of the input disk 21 furthest from the sound vibration amplifier 1, and the end face of the motor 24 is fixedly connected to the end face of the input disk 21 furthest from the output disk 23 with bolts. Two support rods 5 are provided... The support rod 5 is positioned between the soundproof sleeve 4 and the output disk 23. The length direction of the support rod 5 is the same as that of the soundproof sleeve 4. Multiple reserved holes are opened on the disk surface of the output disk facing the soundproof sleeve 4. One end of the support rod 5 is vertically fixed in the reserved hole, and the other end of the support rod 5 is connected to the soundproof sleeve 4. The end of the support rod 5 near the soundproof sleeve 4 is provided with threads. The support rod 5 passes through the end of the soundproof sleeve and is connected to the soundproof sleeve 4 through the provided nut. The provided support rod 5 plays the role of connection and support, so that the soundproof sleeve 4 can be better fixed on the output disk 23.

[0032] The sound insulation sleeve 4, which is fitted on the outside of the sound vibration generator 2, can protect the motor 24 on the one hand, and reduce the noise caused by the motor 24 when it starts up on the other hand, which meets the national requirements for noise.

[0033] A fixed cylinder is fixedly connected to the side of the sound-generating disk 22 near the motor 24. The fixed cylinder extends towards the motor 24 and is sleeved outside the output shaft of the motor 24. One end of the fixed cylinder near the sound-generating disk 22 is fixedly connected to the sound-generating disk 22, and the other end extends to the end of the input disk 21 near the motor 24. A limit block is fixedly connected to the side wall of the output shaft of the motor 24, and a limit groove is formed on the inner wall of the fixed cylinder. The limit block and the limit groove limit each other, so that the sound-generating disk 22 can be driven to rotate when the output shaft of the motor 24 rotates.

[0034] Furthermore, a nut is threaded onto the end of the output shaft of motor 24. A countersunk hole is provided at the center of the surface of the sound-generating disc 22 away from the fixed cylinder. When installing the sound-generating disc 22 onto the output shaft of motor 24, first, the sound-generating disc 22 is sealed onto the output shaft of motor 24, and then the nut is tightened onto the output shaft of motor 24, so that the nut is embedded in the countersunk hole. After tightening, the end faces of the output shaft of motor 24 and the nut are flush with the surface of the sound-generating disc 22, and sealant is filled in the gap between the sound-generating disc and the nut to prevent... The gas inside the cavity flows to the motor 24 through the output shaft of the motor 24; the nut threaded onto the output shaft of the motor 24 makes the connection between the sound-generating disc 22 and the output shaft of the motor 24 more secure, preventing the connection between the motor 24 and the sound-generating disc 22 from becoming unstable after long-term use with the motor 24, which could easily cause wear between the sound-generating disc 22 and the output disc 23 and the input disc 21. On the other hand, the threaded connection makes it easy to disassemble the sound-generating disc 22 and the output shaft of the motor 24, and it is convenient to replace the sound-generating disc 22 when it is damaged.

[0035] Reference Figure 1 , Figure 2 and Figure 3 The input disk 21 includes a first connecting part 211, a second connecting part 212, and a third connecting part 213, which are fixedly connected in sequence. The second connecting part 212 is sleeved on the outside of the fixed cylinder, and a through hole 2121 is provided on the second connecting part 212. The through hole 2121 is arranged circumferentially along the second connecting part 212, extending from the outside of the second connecting part 212 to the inside of the second connecting part 212. The first connecting part 211 is fixedly connected to the end face of the motor 24 by bolts. The third connecting part 213 is close to the sound-generating disk 22 and is fastened to the output disk 23, and is fixedly connected by bolts. The airflow entering between the inner wall of the input disk 21 and the output shaft of the motor 24 can be discharged from the sound vibration generator 2 through the through hole 2121 on the second connecting part 212, thereby reducing the airflow entering the motor 24 through the space between the output shaft of the motor 24 and the inner wall of the input disk 21, and thus reducing the amount of dust carried by the airflow entering the motor 24.

[0036] Furthermore, through holes 2121 are spaced apart along the outer surface of the second connecting portion 212; the side of the through holes 2121 extends obliquely from the inner surface of the second connecting portion 212 to the outer surface of the second connecting portion 212, thereby further improving the airflow discharge efficiency between the inner wall of the input disk 21 and the output shaft of the motor 24.

[0037] Furthermore, an annular guide ring 2122 is fitted on the outer wall of the fixed cylinder. The guide ring 2122 is located between the second connecting part 212 and the fixed cylinder, and is located on the side of the through hole 2121 closer to the motor 24. The side of the guide ring 2122 away from the output shaft of the motor 24 abuts against the inner wall of the second connecting part 212. When the airflow enters the space between the inner wall of the input disk 21 and the output shaft of the motor 24, it can be discharged from the through hole 2121 more quickly under the airflow guidance of the guide ring 2122, thus avoiding greater impact on the motor 24.

[0038] Furthermore, pressure-resistant oil seals 25 are fitted at both the end of the fixed cylinder furthest from the motor 24 and the end closest to the motor 24. The two pressure-resistant oil seals 25 are located on both sides of the guide ring 2122. These seals seal the gaps between the input disc 21, the sound-generating disc 22, and the output disc 23, preventing airflow from entering between the second connecting part 212 and the output shaft of the motor 24. This reduces dust carried by the airflow entering the motor 24 and extends the service life of the motor 24. Specifically, the pressure-resistant oil seals 25 are fitted onto the outer wall of the fixed cylinder, and their outer circumferential surfaces abut against the inner wall of the second connecting part 212 of the input disc 21.

[0039] Reference Figure 1 , Figure 2 and Figure 3 Furthermore, a first limiting part is provided on the inner wall of the second connecting part 212. The first limiting part extends from the middle of the inner wall of the second connecting part 212 toward the output shaft of the motor 24. The pressure-resistant oil seal 25 on the fixed cylinder near the motor 24 abuts against the first limiting part to prevent the pressure-resistant oil seal 25 from being loosely connected to the fixed cylinder and the second connecting part 212 under the action of airflow. A nylon support ring 26 is also sleeved on the fixed cylinder. The side of the nylon support ring 26 near the sound-generating disk 22 abuts against the pressure-resistant oil seal 25 on the fixed cylinder away from the motor 24. The side-facing guide ring 2122 abuts against the inner wall of the second connecting part 212 away from the outer circumference of the fixed cylinder, thereby positioning the pressure-resistant oil seal 25 near the sound-generating disk 22. The provided nylon support ring 26 seals the space between the output shaft of the motor 24 and the input disk 21, and blocks the airflow entering between the output shaft of the motor 24 and the inner wall of the input disk 21, thereby promoting the gas to be discharged from the through hole 2121 into the sound vibration generator 2. In addition, the nylon support ring 26 can also act as a "bearing" support to prevent the sound-generating disk 22 from jumping when it rotates at high speed.

[0040] Furthermore, an airflow inlet is provided on the first connecting part 211 of the input disk 21, and a sound output outlet is fixedly connected to the output disk 23. A plurality of airflow cutting holes 221 are evenly distributed around the outer periphery of the sound-emitting disk 22. The airflow cutting holes 221 share the same center line with the airflow inlet and the sound output outlet. The airflow inlet, the airflow cutting holes 221 and the sound output outlet form a smooth air passage.

[0041] The acoustic vibration amplifier 1 is horn-shaped and consists of two or three pieces welded together. It has a large end and a small end. The split design of the acoustic vibration amplifier 1 solves the problem that the large outer diameter of the amplifier makes it impossible for the boiler's artificial holes and steam holes to enter during installation, and increases the weld length, reducing the risk of weld cracking and falling off. The small end of the acoustic vibration amplifier is connected to the sound output port. The two- or three-piece acoustic vibration amplifier makes it convenient for workers to move and install the acoustic vibration amplifier in the tail flue of the coal-fired boiler and inside the electrostatic precipitator.

[0042] Reference Figure 1 , Figure 2 and Figure 4 The pressure-stabilizing gas supply mechanism 3 includes a flow stabilizer 31, a connecting pipe 32, a solenoid valve 33, a bypass pipe 34, a ball valve 35, and a gas storage tank 36. These components are connected together to ensure a stable supply of gas pressure and flow. The bypass pipe 34 ensures a continuous gas supply when the machine is stopped, and prevents the sound vibration generator 2 from being blocked by dust.

[0043] The outlet of the gas tank 36 is connected to the airflow inlet on the input plate 21. The outlet of the gas tank 36 and the airflow inlet, as well as the sound output port of the output plate 23 and the small end of the sound vibration amplifier 1, are all fixedly connected. Sealing glue is provided at the connection surfaces to seal the connection between the various parts of the pressure stabilizing gas supply mechanism, so as to ensure that the sound hammer does not leak air or sound. The gas in the gas tank 36 can enter the cavity between the input plate 21 and the output plate 23, and then transmit the gas through the sound-generating plate 22 to the sound vibration amplifier 1.

[0044] The airflow entering the acoustic vibration amplifier 1 from the small end gradually increases in cross-sectional area, with each airflow passing through an exponentially larger cross-sectional area. Furthermore, the acoustic vibration amplifier 1 has a smooth interior, conforming to the laws of sound wave propagation and amplification. Utilizing the rotation of the sound-generating disk 22, the acoustic vibration generator 2 emits ultra-high-power sound vibrations to mimic the hammering action of a mechanical hammer, producing a knocking effect on dust.

[0045] Reference Figure 1 , Figure 2 and Figure 4A flow stabilizer 31 is fixedly connected to the front section of the pipe 7 near the input panel 21. The flow stabilizer 31 is vertically installed and connected to the front section of the pipe 7. The flow stabilizer 31 is gourd-shaped and located below the motor 24. The gourd-shaped flow stabilizer 31 reduces its size and avoids occupying too much space. During use, the high-pressure gas in the gas storage tank 36 can first fill the flow stabilizer 31 and flow along the inner wall of the flow stabilizer 31 to the gas inlet. The flow stabilizer 31 can convect the gas flow. The gas at the inlet acts as a pressure stabilizer and flow modulator to prevent backflow and avoid direct airflow to the inlet, which could impact and damage the sound-generating disc 22. The flow stabilizer 31 maintains a constant pressure and is saturated with a certain amount of gas before introducing the gas into the cavity between the input disc 21 and the output disc 23. The flow stabilizer 31 prevents gas with fluctuating pressure from directly filling the cavity between the output disc 23 and the input disc 21, thus stabilizing the gas pressure passing through the sound-vibrating generator and improving the dust removal effect.

[0046] The implementation principle of a novel acoustic hammer according to an embodiment of this application is as follows: When the acoustic hammer is working, the compressed airflow generated by the air compressor is input through the air storage tank 36 into the pressure stabilizing air supply mechanism 3, where it is kept at a constant pressure. When the acoustic vibration generator 2 is working, the compressed airflow enters the flow stabilizer 31 and is further compressed, increasing the airflow speed. The secondary compressed air enters the acoustic vibration generator 2, and after reaching the airflow velocity limit, the motor 24 starts, driving the sound-generating disk to rotate and cut the hammer airflow, causing the acoustic vibration generator 2 to generate vibration sound. The vibration sound enters from the small port of the acoustic vibration amplifier 1 and exits from the large port. The vibration sound is transmitted to the boiler and the electrostatic precipitator. During the operation of the acoustic hammer, the airflow between the output shaft of the motor 24 and the inner wall of the input disk 21 can be discharged along the through hole 2121, preventing the airflow from entering the motor 24.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A new type of acoustic hammer, characterized in that: The device includes an acoustic vibration amplifier (1), an acoustic vibration generator (2), and a pressure-stabilizing gas supply mechanism (3). The acoustic vibration amplifier (1) and the pressure-stabilizing gas supply mechanism (3) are located at one end of the acoustic vibration generator (2). The acoustic vibration generator (2) includes an input disk (21), a sound-generating disk (22), an output disk (23), and a motor (24). The input disk (21) is provided with an airflow inlet, and the output disk (23) is provided with a sound output outlet. The input disk (21) and the output disk (23) are fastened together and fixed, and a cavity is formed between the input disk (21) and the output disk (23). The airflow inlet and the sound output outlet share a common center line. The sound-generating disk (22) is located between the input disk (21) and the output disk (24). 3) There are gaps between the sound-generating disk (22) and the surfaces of the input disk (21) and the output disk (23) inside the cavity. Smooth air passages are formed inside the input disk (21) and the output disk (23). Multiple airflow cutting holes (221) are evenly distributed around the outer periphery of the sound-generating disk (22). The motor (24) is set on the outside of the input disk (21). The end face of the motor (24) is detachably and fixedly connected to the surface of the input disk (21) away from the output disk (23). The output shaft of the motor (24) is detachably and fixedly connected to the center of the sound-generating disk (22). The airflow cutting hole (221) shares the same center line with the airflow inlet and the sound output outlet. The airflow inlet, the airflow cutting hole (221) and the sound output outlet form a smooth air passage. The airflow inlet on the input plate (21) is connected to the pressure-stabilizing gas supply mechanism (3) through a set pipe; the sound vibration amplifier (1) is connected to the sound output port, and the end of the pressure-stabilizing gas supply mechanism (3) away from the sound vibration generator (2) is connected to an external gas source pipe; The outer side of the sound vibration generator (2) is provided with a sound insulation cover (6). The end of the sound insulation cover (6) away from the pressure stabilizing gas supply mechanism (3) is fixedly connected to a sound insulation sleeve (4). The sound insulation cover (6) is provided with a support rod (5). The sound insulation sleeve (4) is fixedly connected to the sound vibration amplifier (1). One end of the sound vibration amplifier (1) passes through the inside of the sound insulation sleeve (4) and is connected to the sound vibration generator (2). The sound insulation sleeve (4) is installed and welded to the boiler body sealing box. One end of the support rod (5) is connected to the sound insulation sleeve (4), and the other end is connected to the output plate (23). The input disk (21) includes a first connecting part (211), a second connecting part (212), and a third connecting part (213) that are fixedly connected in sequence. The second connecting part (212) has a through hole (2121) that extends from the outside to the inside. The through hole (2121) is opened around the second connecting part (212). The first connecting part (211) is fixedly connected to the output disk (23) by bolts. The third connecting part (213) is fixed to the end face of the motor (24) by bolts. A fixing cylinder is fixedly connected at the center of the sound-generating disk (22). The fixing cylinder is close to the sound-generating disk. (22) is fitted with a pressure-resistant oil seal (25) at one end and at the end away from the sound-generating disk. The outer side of the pressure-resistant oil seal (25) abuts against the inner wall of the second connecting part (212). The outer wall of the fixed cylinder is fitted with an annular guide ring (2122). The outer side of the guide ring (2122) abuts against the inner wall of the second connecting part (212), and the guide ring (2122) corresponds to the through hole (2121). The inner wall of the second connecting part (212) extends toward the fixed cylinder to form an annular first limiting part. The first limiting part abuts against the pressure-resistant oil seal (25) of the fixed cylinder away from the sound-generating disk (22).

2. A new acoustic hammer according to claim 1, characterized in that: The pressure-stabilizing gas supply mechanism (3) is equipped with a flow stabilizer (31), and the flow stabilizer (31) has an internal hollow structure.

3. A new type of acoustic hammer according to claim 1, characterized in that: The acoustic vibration amplifier (1) is horn-shaped and consists of two or three pieces welded together.

4. A new type of acoustic hammer according to claim 1, characterized in that: The fixed cylinder passes through the second connecting part (212) and extends toward the motor (24). The output shaft of the motor (24) is inserted into the fixed cylinder and connected by a key and a keyway.

5. A new type of acoustic hammer according to claim 1, characterized in that: The output shaft of the motor (24) is threaded with a nut at the end. The sound-generating disc (22) has a countersunk hole at the center of the disc surface away from the fixed cylinder. The nut can press the sound-generating disc and screw it into the countersunk hole.

6. A new type of acoustic hammer as claimed in claim 1, characterized in that: A nylon support ring (26) is also fitted on the outer wall of the fixed cylinder. The nylon support ring (26) is located between the guide ring (2122) and the pressure-resistant oil seal (25) on the fixed cylinder near the sound-generating disk (22). The side of the nylon support ring (26) near the sound-generating disk (22) abuts against the pressure-resistant oil seal (25), and the outer circumferential surface of the nylon support ring (26) abuts against the inner wall of the second connecting part (212).

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