A sonic shock wave mixed sootblowing device for furnace

Abstract

This invention discloses a hybrid acoustic-shockwave soot blowing device for furnace ducts, comprising an air inlet assembly, an energy storage tank, a scanning acoustic wave assembly, a scanning shockwave assembly, an intelligent pressure replenishment unit, and a control cabinet. The air inlet assembly is connected to the energy storage tank and provides a stable pressure air source to it. The intelligent pressure replenishment unit is installed on the air inlet assembly and works in conjunction with it to intelligently replenish pressure to the air inlet assembly. The energy storage tank is connected to both the scanning acoustic wave assembly and the scanning shockwave assembly. The scanning acoustic wave assembly is installed on the outer wall of the furnace duct and aligned with the first working port. This invention combines the advantages of both acoustic and shockwave soot removal under a single air source supply, adapting to the soot removal needs of the furnace duct under various operating conditions, thereby better ensuring the working efficiency of the heating boiler.

Description

Technical Field

[0001] This utility model relates to a flue gas soot blowing device, specifically a hybrid soot blowing device that combines shock wave and acoustic wave dual-mode soot blowing driven by a single gas source within the same furnace duct. Background Technology

[0002] As a primary heat source in current industrial production, heating boilers consume large amounts of fuel and have high operating costs. Therefore, improving the thermal efficiency of heating boilers plays a crucial role in reducing the energy consumption of the equipment. Under otherwise constant conditions, reducing flue gas heat loss is one of the important means to improve thermal efficiency, as flue gas loss accounts for a significant proportion of the total heat loss in a heating boiler. When the boiler thermal efficiency is high (90%), flue gas heat loss accounts for approximately 70% to 80% of the total heat loss.

[0003] When carbon particles and ash from incomplete combustion in the heating furnace are adsorbed onto the outer surface of the convection chamber tubes, thermal resistance increases and heat transfer efficiency decreases. As ash accumulates, the exhaust gas temperature rises rapidly. To ensure the heating furnace operates at high efficiency for a long time, it is necessary to regularly remove the ash using a soot blower.

[0004] Currently, there are two main methods for soot blowing in furnace ducts: shock wave soot blowing and sonic soot blowing. Each method has its own characteristics. Specifically, steam soot blowers have the advantages of high blowing kinetic energy and good soot blowing effect, but the disadvantages are that they can damage the heated surface, pose safety hazards, and have high operating costs and require a lot of equipment maintenance. Sonic soot blowers have the advantages of thorough cleaning without dead corners, achieving full coverage cleaning, but the disadvantages are that the sound wave energy is low, and they can only solve the problem of loose floating ash accumulation, not the problem of sticky ash accumulation.

[0005] Currently, most sootblowing systems use only one of the two sootblowing methods, resulting in insufficient sootblowing performance and difficulty in meeting the complex working conditions within the furnace. Specifically, while some sootblowing devices simultaneously employ shock waves and acoustic waves, traditionally, shock wave generators typically use either steam or gas-fired sootblowing. With the increasing emphasis on energy conservation, various new sootblowing devices have emerged, including shock wave sootblowing devices. Compared to steam sootblowers, the entire shock wave sootblowing system has no mechanical rotation, a simple structure, and no mechanical transmission failures throughout the entire process of shock wave generation, transmission, and modulation. Therefore, it operates stably, is easy to maintain, and significantly reduces maintenance costs. Mainstream shock wave sootblowing devices use a high-pressure air tank as the air source, which is then connected to a nozzle and cylinder to generate the shock wave. In this process, the stability and magnitude of the air source pressure determine the stability and sootblowing effect of the shock wave. Theoretically, the pipe pressure of the high-pressure air intake pipe is a constant value. However, in actual applications, due to various factors such as pipe structure and air pump equipment, the air source pressure during shock wave generation is lower than the expected pressure value. This makes it difficult for the actual shock wave soot blowing effect to reach the design value. Furthermore, in actual furnace soot blowing practice, some furnaces have many bends and complex shapes due to various reasons. Using shock wave soot blowers would result in many blind spots, failing to effectively achieve the soot removal purpose. Therefore, such furnaces generally use acoustic soot blowing devices. Acoustic soot blowing devices use the energy in sound waves to generate vibrations between the sound waves and the internal dust, disrupting the dust deposition on the surface of the flue and converting the dust into a suspended state, which is then discharged with the flue gas. Although acoustic soot blowing devices offer a significantly wider soot blowing coverage area compared to shock wave soot blowing devices, existing acoustic soot blowing devices still have certain shortcomings. Specifically, there are various types of boiler soot blowers sold on the market today, with rotary whistle soot blowers being one of them. Rotary whistle soot blowers convert compressed air into sound energy to achieve the purpose of soot removal. However, the direction of the sound wave generator of rotary whistle soot blowers on the market is fixed. Due to the characteristics of sound waves themselves, there are regional differences in the intensity of the sound wave soot removal process. That is, the sound wave energy emitted towards the nozzle is greater and the soot removal effect is better, while the sound wave energy away from the nozzle is smaller and the soot removal effect is poorer. This results in different soot removal effects in different areas of the furnace duct. Over a long period of time, ash may still accumulate in some areas of the furnace duct.

[0006] In conclusion, providing a soot blowing device that combines the advantages of shock waves and acoustic waves for soot removal has high practical application value for the industry. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a simple structure for a furnace duct acoustic shock wave mixing soot blowing device that is driven by a single air source to operate acoustic shock waves.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a sonic shockwave hybrid soot blowing device for furnace ducts, comprising an air inlet assembly, an energy storage tank, a scanning sonic wave assembly, a scanning shockwave assembly, an intelligent pressure compensation unit, and a control cabinet. The air inlet assembly is connected to the energy storage tank and is used to provide a stable pressure air source to the energy storage tank. The intelligent pressure compensation unit is installed on the air inlet assembly and works in conjunction with it to intelligently compensate for the pressure of the air inlet assembly. The energy storage tank is connected to both the scanning sonic wave assembly and the scanning shockwave assembly, and is used to provide a high-pressure working air source to both the scanning sonic wave assembly and the scanning shockwave assembly. The soot blowing device is integrated with the furnace duct, which has a first working port and a second working port. The scanning acoustic component is installed on the outer wall of the furnace duct and is aligned with the first working port. Part of the component passes through the first working port and is inserted into the furnace duct to perform scanning acoustic soot blowing. The scanning shock wave component is installed on the outer wall of the furnace duct and is aligned with the second working port. Part of the component passes through the second working port and is inserted into the furnace duct to perform scanning shock wave soot blowing. The control cabinet is connected to the energy storage tank, air intake component, intelligent pressure replenishment unit, scanning acoustic component, and scanning shock wave component to control the operation of each unit and component.

[0009] Furthermore, the air intake assembly includes an air intake pipe, a manual valve, a filter, and an electrically controlled valve installed sequentially on the air intake pipe. The electrically controlled valve is connected to and controlled by the control cabinet, and the air intake pipe is connected to the air storage tank to provide a stable air source to the air storage tank.

[0010] Furthermore, the intelligent pressure replenishment unit includes a pressure boosting pipe and a pressure boosting pump. The pressure boosting pump, which is connected to and controlled by the control cabinet, is installed on the pressure boosting pipe. The two ends of the pressure boosting pipe are respectively connected to the air intake pipes at both ends of the balance valve, and together with the air intake pipes, they form a pressure replenishment branch, thereby enabling the pressure boosting pump and the balance valve to be connected in parallel on the air intake pipes.

[0011] Furthermore, the energy storage tank is equipped with at least one pressure sensor connected to the control cabinet.

[0012] Furthermore, the scanning acoustic component includes a acoustic generator and at least one acoustic scanning unit connected to the acoustic generator. The acoustic generator is mounted on an energy storage tank. The acoustic scanning unit is mounted on the outer wall of the furnace channel via an acoustic mounting bracket, aligning with the first working port. The acoustic scanning unit is connected to the acoustic generator, which provides a set frequency of soot-absorbing acoustic wave to the acoustic scanning unit. The scanning soot blower includes a horn-shaped acoustic horn elbow inserted into the furnace channel from the first working port, a first drive motor with drive teeth, an acoustic slewing bearing, and a fixed sound transmission tube. The acoustic slewing bearing includes components that are connected to the acoustic horn elbow. The system includes a fixed part connected to a fixed mounting base and a movable part that cooperates with the fixed part and can rotate around the fixed part; a first drive motor is connected to the fixed part in the acoustic slewing bearing and the drive teeth of the first drive motor are connected and cooperated with the movable part, and the first drive motor realizes the rotational drive of the movable part in the acoustic slewing bearing through the drive teeth; a fixed sound transmission tube is fixedly installed on the fixed part of the acoustic slewing bearing, and one end of the fixed sound transmission tube is connected to the sound wave generator, and the other end is movably aligned and cooperated with the acoustic horn elbow installed on the movable part of the acoustic slewing bearing, and the fixed sound transmission tube is used to transmit the sound source emitted by the sound wave generator to the acoustic horn elbow.

[0013] Furthermore, the scanning shock wave assembly includes a shock wave generator and a scanning shock wave nozzle. The scanning shock wave nozzle is mounted and fixed to the outer wall of the furnace tunnel via a bracket, and part of the scanning shock wave nozzle extends into the furnace tunnel from the second working port. The shock wave generating port of the shock wave generator is connected to the scanning shock wave nozzle via a flexible hose with a flexible deformation range. Since the scanning shock wave nozzle and the shock wave generator are not fixed on different fixed surfaces, the hose compensates for positional changes caused by operation. The shock wave generator includes a variable diameter accelerating tube penetrating the energy storage tank and a controllable gas valve installed at one end of the variable diameter accelerating tube and connected to the control cabinet. The other end of the variable diameter accelerating tube is the shock wave generating port. The controllable gas valve achieves shock wave generation through switch control. The generated shock wave is accelerated in the variable diameter accelerating tube before entering the scanning shock wave nozzle and being ejected. The scanning shock wave nozzle includes a body and a component inserted into the body along the body axis. The nozzle rotates around an axis, and a power unit is mounted on the main body and connected to the nozzle to control its rotation. The nozzle has a bent nozzle at its front end, which is inserted into the furnace channel from the second working port. The rotation of the nozzle changes the orientation of the bent nozzle. The variable-diameter accelerating tube includes a narrowing section and an expanding section connected to the narrowing section, giving the tube an hourglass shape. The narrowing section is connected to a controllable gas valve to compress the gas supplied by the valve, while the expanding section releases and accelerates the compressed gas. The power unit in the scanning shockwave nozzle includes a mechanical rotating mechanism and a cylinder connected to it. The cylinder's extension and retraction movement drives the mechanical rotating mechanism, which in turn rotates the nozzle. The cylinder is connected to an energy storage tank via a pipe, which provides a high-pressure gas source to drive the cylinder. An electrically controlled valve controlled by a control cabinet is also installed on this pipe.

[0014] Furthermore, a pressure sensor connected to the control cabinet is installed at the junction of the air intake pipe and the energy storage tank.

[0015] This invention combines scanning acoustic waves and scanning shock waves, combining the advantages of both acoustic waves and shock waves for ash removal under a single gas supply. In practical applications, the shock wave can be activated when needed, the acoustic wave can be activated when needed, or both acoustic and shock waves can be activated simultaneously to adapt to the ash removal needs of the furnace under various working conditions, thereby better ensuring the working efficiency of the heating boiler. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present specification and, together with their description, serve to explain the principles of the present specification.

[0017] Figure 1 This is an exemplary structural diagram of the present invention. Detailed Implementation

[0018] Various exemplary embodiments of this specification will now be described in detail with reference to the accompanying drawings.

[0019] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this specification or its application or use.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0021] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. Those skilled in the art can understand the specific meaning of these terms in this invention according to the specific circumstances. Example

[0023] like Figure 1 The exemplary structure shown includes an air intake assembly 1, an energy storage tank 2, a scanning acoustic wave assembly 3, a scanning shock wave assembly 4, an intelligent pressure replenishment unit 5, and a control cabinet 6. The air intake assembly 1 is connected to the energy storage tank 2 and is used to provide a stable pressure air source to the energy storage tank 2. The intelligent pressure replenishment unit 5 is installed on the air intake assembly 1 and cooperates with the air intake assembly 1. The intelligent pressure replenishment unit 5 is used to intelligently replenish the pressure of the air intake assembly 1. The energy storage tank 2 is connected to the scanning acoustic wave assembly 3 and the scanning shock wave assembly 4 respectively, and the energy storage tank 2 is used to provide a high-pressure working air source to the scanning acoustic wave assembly 3 and the scanning shock wave assembly 4. The mixing soot blowing device is integrated with the furnace duct 7. The furnace 7 is provided with a first working port 8 and a second working port 9; the scanning acoustic component 3 is installed on the outer wall of the furnace 7 and is aligned with the first working port 8. Part of it passes through the first working port 8 and is inserted into the furnace 7 to realize the scanning acoustic soot blowing work of the furnace 7; the scanning shock wave component 4 is installed on the outer wall of the furnace 7 and is aligned with the second working port 9. Part of it is inserted into the furnace 7 through the second working port 9 to realize the scanning shock wave soot blowing work of the furnace 7; the control cabinet 6 is connected and cooperates with the energy storage tank 2, the air intake component 1, the intelligent pressure replenishment unit 5, the scanning acoustic component 3 and the scanning shock wave component 4 respectively, and controls the operation of each unit and component.

[0024] Continue as Figure 1As shown, the air intake assembly 1 includes an air intake pipe 101, and sequentially mounted on the air intake pipe 101 are a manual valve 102, a filter 103, an electrically controlled valve 104, and a balancing valve 105. The electrically controlled valve 104 is connected to and controlled by the control cabinet 6. The air intake pipe 101 is connected to the air storage tank 2 to provide a stable air source to the air storage tank 2. The manual valve 102 is used to manually open and close the air intake pipe 101. The filter 103 is used to filter solid foreign objects in the gas entering through the manual valve 102. The electrically controlled valve 104, under the control of the control cabinet 6, enables real-time controllable switching of the opening and closing states of the air intake pipe 101. The balancing valve 105 works in conjunction with the intelligent pressure replenishment unit 5 to achieve pressure balance in the air intake pipe 101.

[0025] The intelligent pressure replenishment unit 5 includes a pressure boosting pipe 501 and a pressure boosting pump 502. The pressure boosting pump 502, controlled by the control cabinet 6, is installed on the pressure boosting pipe 501. Both ends of the pressure boosting pipe 501 are connected to the air inlet pipes 101, which are connected to the two ends of the balance valve 105. Together with the air inlet pipes 101, they form a pressure replenishment branch, thus connecting the pressure boosting pump 502 and the balance valve 105 in parallel on the air inlet pipes 101. A pressure sensor 106, connected to the control cabinet 6, is installed at the junction of the air inlet pipe 101 and the energy storage tank 2.

[0026] The energy storage tank 2 is equipped with a pressure sensor 201 that is connected to the control cabinet 6.

[0027] The scanning acoustic component 3 includes a sound wave generator 301 and an acoustic wave scanning unit 302. The sound wave generator 301 is mounted on the energy storage tank 2. The acoustic wave scanning unit 302 is mounted on the outer wall of the furnace passage 7 via an acoustic wave mounting base 304 and is aligned with the first working port 8. The acoustic wave scanning unit 302 is connected to the sound wave generator 301. The sound wave generator 301 is used to provide the acoustic wave scanning unit 302 with a set frequency of ash-absorbing sound waves. The scanning soot blower 302 includes a horn-shaped acoustic wave horn elbow 307 inserted into the furnace passage 7 from the first working port 8, a first drive motor 308 with drive teeth, an acoustic wave slewing bearing 309, and a fixed sound transmission tube 310. The acoustic wave slewing bearing 309 includes a connection to the acoustic wave mounting base 304. 04. A fixed part connected to the fixed part and a movable part that cooperates with the fixed part and can rotate around the fixed part; a first drive motor 308 is connected to the fixed part in the acoustic gyratory bearing 309 and the drive teeth of the first drive motor 308 are connected and cooperate with the movable part. The first drive motor 308 realizes the rotation drive of the movable part in the acoustic gyratory bearing 309 through the drive teeth; a fixed sound transmission tube 310 is fixedly installed on the fixed part of the acoustic gyratory bearing 309, and one end of the fixed sound transmission tube 310 is connected to the sound generator 301, and the other end is movably aligned and connected with the acoustic horn elbow 307 installed on the movable part of the acoustic gyratory bearing 309. The fixed sound transmission tube 310 is used to transmit the sound source emitted by the sound generator 301 to the acoustic horn elbow.

[0028] The scanning shock wave assembly 4 includes a shock wave generator and a scanning shock wave nozzle 401. The scanning shock wave nozzle 401 is mounted and fixed on the outer wall of the furnace passage 7 via a bracket 402, and part of the scanning shock wave nozzle 401 extends into the furnace passage 7 from the second working port 9. The shock wave generating port of the shock wave generator is connected to the scanning shock wave nozzle 401 via a flexible hose 403 with a flexible deformation range. Since the scanning shock wave nozzle 401 and the shock wave generator are not fixed on different fixed surfaces, the hose 403 compensates for positional changes caused by operation. The shock wave generator includes a variable-diameter acceleration tube 404 penetrating the energy storage tank 2, and a controllable air valve 405 installed at one end of the variable-diameter acceleration tube 404 and connected to the control cabinet 1; the other end of the variable-diameter acceleration tube 404 is the shock wave generating port; the controllable air valve 405 achieves shock wave generation through switch control, and the generated shock wave is accelerated in the variable-diameter acceleration tube 404 before entering the scanning shock wave nozzle 401 and being ejected; the scanning shock wave nozzle 401 includes a body 406 and a nozzle 4 inserted into the body 406 along the body axis and rotatable around the axis. 07. A power device 408, installed on the main body 406 and connected to the nozzle 407, for controlling the rotation of the nozzle 407; the nozzle 407 has a bent nozzle 409 at its front end, which is inserted into the furnace passage 7 from the second working port 9, and the orientation of the bent nozzle 409 changes due to the rotation of the nozzle 407; the variable diameter accelerating tube 404 includes a reduced diameter section 410 and an expanded diameter section 411 connected to the reduced diameter section 410, making the variable diameter accelerating tube 404 generally hourglass-shaped; the reduced diameter section 410 is connected to a controllable gas valve 405. The gas delivered by the controllable gas valve 405 is compressed by changing its diameter. The expansion section 411 is used to release and accelerate the delivery of the compressed gas. The power unit 408 in the scanning shock nozzle 401 includes a mechanical rotating mechanism and a cylinder connected and cooperating with the mechanical rotating mechanism. The mechanical rotating mechanism is driven to move by the extension and retraction of the cylinder, which in turn drives the nozzle 407 to rotate. The cylinder is connected to the energy storage tank 2 through a pipeline. The energy storage tank 2 provides a high-pressure gas source to drive the cylinder. An electrically controlled valve controlled by the control cabinet 6 is also installed on the pipeline.

[0029] The various embodiments of this specification have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein. The scope of this application is defined by the appended claims.

Claims

1. A soot blowing device using acoustic shock waves in a furnace duct, characterized in that: The system includes an air intake assembly, an energy storage tank, a scanning acoustic wave assembly, a scanning shock wave assembly, and a control cabinet. The air intake assembly is connected to the energy storage tank and provides a stable air source to it. The energy storage tank is connected to both the scanning acoustic wave assembly and the scanning shock wave assembly, providing them with a high-pressure working air source. The mixing and soot blowing device is integrated with the furnace duct, which has a first working port and a second working port. The scanning acoustic wave assembly is installed on the outer wall of the furnace duct, aligned with the first working port, with a portion of it penetrating through the first working port and inserting into the furnace duct to perform scanning acoustic soot blowing. The scanning shock wave assembly is also installed on the outer wall of the furnace duct. Aligned with the second working port, part of it is inserted into the furnace channel through the second working port to achieve scanning shock wave soot blowing of the furnace channel; the control cabinet is connected and cooperates with the energy storage tank, air intake assembly, intelligent pressure replenishment unit, scanning acoustic wave assembly and scanning shock wave assembly respectively, and controls the operation of each unit and assembly; the mixing soot blowing device also includes an intelligent pressure replenishment unit, which is installed on the air intake assembly and cooperates with the air intake assembly to intelligently replenish the air intake assembly; the scanning acoustic wave assembly includes a sound wave generator and at least one acoustic wave scanning unit connected to the sound wave generator, the sound wave generator is installed on the energy storage tank; the acoustic wave scanning unit uses a sound wave solid-state... A fixed mounting base is installed on the outer wall of the furnace channel and aligned with the first working port. The acoustic scanning unit is connected to and cooperates with the acoustic generator, which provides the acoustic scanning unit with a set frequency of soot-absorbing acoustic waves. The scanning soot blower includes a horn-shaped acoustic horn elbow inserted into the furnace channel from the first working port, a first drive motor with drive teeth, an acoustic slewing bearing, and a fixed sound transmission tube. The acoustic slewing bearing includes a fixed part connected to the acoustic fixed mounting base and a movable part that cooperates with the fixed part and can rotate around the fixed part. The first drive motor is connected to the fixed part in the acoustic slewing bearing, and the drive teeth of the first drive motor are connected to and cooperate with the movable part. The first drive motor is connected to the fixed part in the acoustic slewing bearing via the drive teeth. The system enables rotational drive of the moving part in the acoustic slewing bearing; a fixed sound tube is fixedly installed on the fixed part of the acoustic slewing bearing, with one end connected to the sound generator and the other end connected to the acoustic horn elbow installed on the moving part of the acoustic slewing bearing. The fixed sound tube is used to transmit the sound source emitted by the sound generator to the acoustic horn elbow; the intelligent pressure compensation unit includes a pressure boosting pipe and a pressure boosting pump. The pressure boosting pump, which is connected to the control cabinet and controlled by the control cabinet, is installed on the pressure boosting pipe; both ends of the pressure boosting pipe are respectively connected to the air inlet pipes at both ends of the balance valve, forming a pressure compensation branch with the air inlet pipe, thereby making the pressure boosting pump and the balance valve connected in parallel on the air inlet pipe.

2. The acoustic shock wave hybrid soot blowing device for furnace ducts as described in claim 1, characterized in that: The air intake assembly includes an air intake pipe, a manual valve, a filter, and an electrically controlled valve installed sequentially on the air intake pipe. The electrically controlled valve is connected to and controlled by the control cabinet. The air intake pipe is connected to the air storage tank to provide a stable air source to the air storage tank. A pressure sensor connected to the control cabinet is installed at the connection between the air intake pipe and the air storage tank.

3. The acoustic shock wave hybrid soot blowing device for furnace ducts as described in claim 1, characterized in that: The energy storage tank is equipped with at least one pressure sensor connected to the control cabinet.

4. The acoustic shock wave mixing soot blowing device for furnace ducts as described in claim 1, characterized in that: The scanning shock wave assembly includes a shock wave generator and a scanning shock wave nozzle. The scanning shock wave nozzle is mounted and fixed on the outer wall of the furnace tunnel by a bracket, and part of the scanning shock wave nozzle extends into the furnace tunnel from the second working port. The shock wave generator includes a variable diameter accelerating tube penetrating the energy storage tank and a controllable gas valve installed at one end of the variable diameter accelerating tube and connected to the control cabinet. The other end of the variable diameter accelerating tube is the shock wave generating port. The controllable gas valve is controlled by a switch to generate the shock wave. The generated shock wave is accelerated in the variable diameter accelerating tube before entering the scanning shock wave nozzle and being ejected. The scanning shock wave nozzle includes a body, a nozzle inserted into the body along the axis of the body and rotatable around the axis, and a power device installed on the body and connected to the nozzle for controlling the rotation of the nozzle. The nozzle has an elbow nozzle at the front end. The elbow nozzle is inserted into the furnace channel from the second working port. The rotation of the nozzle changes the orientation of the elbow nozzle. The variable diameter accelerating tube includes a reducing section and an expanding section connected to the reducing section, making the variable diameter accelerating tube shaped like an hourglass. The reducing section is connected to a controllable gas valve and is used to compress the gas sent by the controllable gas valve. The expanding section is used to release and accelerate the compressed gas. The power unit in the scanning shock head includes a mechanical rotating mechanism and a cylinder connected to the mechanical rotating mechanism. The extension and retraction of the cylinder drives the mechanical rotating mechanism to move, thereby driving the nozzle to rotate. The cylinder is connected to an energy storage tank through a pipe. The energy storage tank provides a high-pressure gas source to drive the cylinder. An electrically controlled valve controlled by the control cabinet is also installed on this pipe.

5. The acoustic shock wave mixing soot blowing device for furnace ducts as described in claim 4, characterized in that: The shock wave generator's shock wave inlet is connected to the scanning shock wave nozzle via a flexible hose with a range of deformation. Since the scanning shock wave nozzle and the shock wave generator are not fixed on different fixed surfaces, the hose compensates for positional changes caused by operation.

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