A centrifugal separation coupled gas flow sound source smoke elimination device and method

Abstract

The application discloses a kind of coupling centrifugal separation's airflow sound source smoke elimination device and method.First airflow sound source and second airflow sound source are installed on box, first airflow sound source and second airflow sound source are respectively used to inhale and discharge airflow, dust collection drawer is connected to the bottom end of box, for collecting separated solid particles, guide mechanism and inner cylinder are fixedly connected in the lower part of box, air inlet pressure regulating assembly is fixedly connected in the upper part of box, and air inlet pressure regulating assembly is fixedly connected between first airflow sound source, cyclone vane and cylinder diameter adjusting mechanism are installed on inlet orifice plate, support tile is movably installed on inlet orifice plate along the radial direction of inlet orifice plate, a straight plate is provided between every two adjacent support tiles, and sliding vane two ends are respectively connected with resonant cavity sleeve and support tile.The application fully utilizes the discharged airflow of airflow sound source to realize self-induction and self-discharge of flue gas, realizes efficient purification of smoke and control of particle emission, and improves visibility of fire scene when fire occurs.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of fire fighting and safety technology, and particularly relates to a gas flow sound source smoke removal device and method coupled with centrifugal separation. BACKGROUND

[0002] With the vigorous development of China's economy and the significant acceleration of urbanization process, the city construction is changing rapidly, the infrastructure is improving day by day, and the traffic and power network is expanding rapidly, so the scope of fire is wider. In the process of fire, the harm of fire smoke to the trapped and rescue personnel is the most serious. Due to the strong light shielding, toxic and terror of fire smoke, it will cause physiological and psychological harm to the trapped personnel, and more than 80% of fire death cases are directly or indirectly caused by fire smoke.

[0003] The acoustic agglomeration technology promotes the agglomeration of small particles in smoke into larger particles by acoustic radiation force, accelerates its sedimentation, and thus quickly reduces the smoke concentration, providing an effective new way for fire emergency response. As the core component of the sound source, the transducer has low conversion efficiency and high requirements for the use environment, and the airflow sound source has simple structure, high temperature resistance and high energy conversion efficiency. Although the sound source device for acoustic agglomeration disclosed in the Chinese patent CN111228940A can produce high sound pressure level sound waves, the airflow discharged by the sound source will force the particles to move away from the sound field, which will interfere with the efficiency of acoustic agglomeration to some extent. Therefore, how to develop a smoke removal device with higher effect of removing fire smoke or dust is a problem to be solved. SUMMARY

[0004] In order to solve the problems in the background art, the purpose of the present application is to provide a gas flow sound source smoke removal device and method coupled with centrifugal separation.

[0005] The technical solution adopted by the present application is:

[0006] One, a gas flow sound source smoke removal device coupled with centrifugal separation:

[0007] The device comprises a box body, a first airflow sound source, a second airflow sound source, a dust collection drawer, an air inlet pressure adjusting assembly, a guide mechanism and an inner cylinder. The first airflow sound source and the second airflow sound source are both installed on the top of the box body, and the first airflow sound source and the second airflow sound source are respectively used for inhaling and discharging airflow. The dust collection drawer is connected to the bottom end of the box body and is used for collecting separated solid particles. The guide mechanism and the inner cylinder are both fixedly connected to the lower part of the box body. The air inlet pressure adjusting assembly is fixedly connected to the upper part of the box body, and the air inlet pressure adjusting assembly is fixedly connected between the first airflow sound source and the second airflow sound source.

[0008] The box is internally provided with a vertical transverse partition plate, which divides the cavity in the box into a first dust removal zone and a second dust removal zone, the airflow in the first dust removal zone flows to the second dust removal zone through a connecting pipeline, the bottom of the first dust removal zone and the bottom of the second dust removal zone are communicated through the connecting pipeline, the top of the side wall of the box is provided with a flue gas inlet and a flue gas outlet, the flue gas inlet and the flue gas outlet are respectively located in the first dust removal zone and the second dust removal zone, and the first airflow sound source and the second airflow sound source are respectively installed at the top of the first dust removal zone and the second dust removal zone.

[0009] The air inlet pressure regulating assembly comprises an inlet orifice plate, a cyclone vane and a barrel diameter adjusting mechanism, and the cyclone vane and the barrel diameter adjusting mechanism are both installed on the inlet orifice plate.

[0010] The barrel diameter adjusting mechanism comprises a straight plate, a support tile, a sliding vane, a resonant cavity sleeve and a synchronous sliding block, the inner ring of the inlet orifice plate is provided with a plurality of sliding grooves, the support tile is movably installed on the inlet orifice plate in the radial direction of the inlet orifice plate, a straight plate is arranged between every two adjacent support tiles, the outer end surface of the straight plate is connected to the inner side wall of the box through a spring, the support tile is movably installed on the straight plate track of the straight plate through the support tile groove, the inner side wall of the resonant cavity sleeve is connected to the resonant cavity of the first airflow sound source, one end of the sliding vane is movably connected to the outer side wall of the resonant cavity sleeve through the synchronous sliding block, and the other end is fixedly connected between the inner side wall of the support tile.

[0011] The inlet orifice plate is horizontally installed at the top of the first dust removal zone in the box, a plurality of cyclone vanes are uniformly and spaced arranged on the upper surface of the inlet orifice plate in the circumferential direction of the inlet orifice plate, each cyclone vane is arranged in the radial direction of the inlet orifice plate, the outer periphery of the cyclone vane is fixedly connected between the side wall of the box, and the barrel diameter adjusting mechanism is connected to the inlet orifice plate.

[0012] The straight plate and the support tile form a hollow cylindrical barrel, the sliding vane and the resonant cavity sleeve are both located in the barrel, when the airflow enters the first dust removal zone from the flue gas inlet, the airflow pushes one end of the sliding vane close to the resonant cavity sleeve to move downward, so that the interval between the resonant cavity sleeve and the support tile is increased, and then the inner diameter ratio between the barrel and the resonant cavity in the first airflow sound source is changed.

[0013] The guiding mechanism mainly comprises a conical filter screen and a guide disc, the outer periphery of the annular guide disc is fixedly connected to the inner side wall of the box, the annular guide disc mainly comprises spaced louver blades, the conical filter screen mainly comprises a hollow conical column located at the upper part and a hollow cylindrical column located at the lower part, a plurality of column through holes for communicating the airflow are formed in the hollow conical column, the outer side wall of the hollow cylindrical column is fixedly connected to the middle part of the guide disc, and the bottom of the conical filter screen is communicated with the inlet of the connecting pipeline.

[0014] The inner cylinder is located in the second dust removal area in the box, a plurality of spiral blades are installed on the outer side wall of the inner cylinder, the airflow in the first dust removal area enters the connecting pipeline after being separated by the conical filter screen, the airflow flows from the outlet of the connecting pipeline to the second dust removal area, and the airflow in the second dust removal area flows out of the second dust removal area from bottom to top.

[0015] Two, a coupling centrifugal separation gas flow sound source smoke removal method, characterized by comprising the following steps:

[0016] First, the air compressor is used for air supply of the first gas flow sound source and the second gas flow sound source, the first gas flow sound source is started to drive the airflow to enter the first dust removal area from the smoke inlet, the airflow in the first dust removal area exerts a thrust force on the sliding vane to make the end of the sliding vane close to the resonant cavity sleeve move up and down, the supporting tile connected with the sliding vane is radially outwardly opened along the inlet orifice plate, so that the spacing between the resonant cavity sleeve and the supporting tile is increased, and then the inner diameter ratio between the cylinder and the resonant cavity in the first gas flow sound source is changed, then the separated airflow in the first dust removal area enters the connecting pipeline through the conical filter screen, the airflow flows from the outlet of the connecting pipeline to the second dust removal area, and the airflow in the second dust removal area flows out of the second dust removal area from bottom to top, and flows to the atmosphere outside from the smoke outlet.

[0017] The centrifugal separation principle of the application is as follows:

[0018] The smoke enters the smoke inlet pipeline, rotates when flowing downward through the cyclone vane on the inlet orifice plate, and the smoke particles flow downward along the inner wall of the box under the action of centrifugal force to be separated by the guide mechanism, the guide mechanism can guide the airflow to enter the second dust removal area smoothly and avoid secondary dust raising. The guide mechanism guides the smoke to enter the second dust removal area from the horizontally arranged connecting pipeline tangentially, under the action of centrifugal force, the smoke flows upward along the wall, and the fixed spiral plate on the outer wall of the inner cylinder further limits the smoke flow and strengthens the rotation flow intensity of the smoke. The overflow ring at the bottom of the horn of the second gas flow sound source can prevent the smoke particles from flowing along the wall and being directly discharged.

[0019] The application uses a gas flow sound source as a sound wave agglomeration generating device and couples centrifugal separation to remove particles in the smoke, fully utilizes the airflow discharged by the sound source to realize self-suction of smoke particles, creates a rotating atmosphere in the smoke removal device by using the exhaust gas, increases the collision probability of particles, and prolongs the residence time of smoke in the sound field, effectively reduces the number of smoke particles, and thus improves the visibility of the fire scene when a fire occurs. The application fully utilizes the airflow discharged by the gas flow sound source to realize self-introduction and self-discharge of the smoke, realizes efficient purification of the smoke and control of particle emission.

[0020] The application has the following beneficial effects:

[0021] 1. In the coupling centrifugal separation smoke elimination device of the gas flow sound source, the reverse angle ratio inside and outside the resonance cavity of the gas flow sound source and the spacing between the resonance cavity and the cylinder within a certain ratio will form a backflow at the side opening, which can continuously suck the external smoke into the agglomeration chamber without the need for a fan, and the side opening of the low-frequency gas flow sound source is adjusted to control the residence time in the particle device, thereby improving the agglomeration effect of the sound wave on the particles;

[0022] 2. The present application improves the existing sound source, adds a blade between the resonance cavity and the cylinder and a synchronous slider, which can change the suction amount of flue gas by adjusting the driving pressure to change the thrust on the blade;

[0023] 3. The present application arranges a louver structure at the bottom of the high-frequency dust removal area, which can guide the smoke particles into the next dust removal area and avoid secondary dusting of the agglomerated particles due to airflow, thereby improving the separation effect of smoke particles.

[0024] 4. The present application installs several cyclone vanes at the entrance of the high-frequency dust removal area and a horizontal tangential connecting pipe at the entrance of the low-frequency dust removal area, which can improve the smoke turbulence and centrifugal separation effect in the dust removal area, increase the local concentration of smoke particles and prolong the residence time of particles in the sound field, thereby improving the agglomeration effect of sound waves on smoke particles. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 It is a schematic diagram of the overall appearance structure of the embodiment of the present application;

[0027] Figure 2 It is an internal cross-sectional view of the embodiment of the present application;

[0028] Figure 3 It is a schematic diagram of the cross-sectional structure of the high-frequency gas flow sound source of the embodiment of the present application;

[0029] Figure 4 It is an overall appearance diagram of the cylinder diameter adjustable structure of the embodiment of the present application;

[0030] Figure 5 It is a schematic diagram of the guiding mechanism of the embodiment of the present application;

[0031] Figure 6The smoke transmittance contrast chart for example two;

[0032] Figure 7 The smoke microstructure chart before and after the agglomeration by using the sound wave agglomeration and centrifugal separation treatment.

[0033] In the figure: 1-box; 2-inlet orifice plate; 3-first air flow sound source; 4-second air flow sound source; 5-smoke gas outlet; 6-dust collecting drawer; 7-smoke gas inlet; 8-overflow ring; 9-cyclone vane; 10-cylinder diameter adjusting mechanism; 11-conical filter screen; 12-guide disc; 13-connection pipeline; 14-inner cylinder; 31-resonant cavity; 101-straight plate; 102-temple; 103-sliding vane; 104-resonant cavity sleeve; 105-synchronous sliding block. DETAILED DESCRIPTION

[0034] The application will be described in detail below with specific implementation cases, which will help the person skilled in the art to further understand the application, but do not limit the application in any form.

[0035] As shown in Figure 1 and Figure 2 , the device comprises a box 1, a first air flow sound source 3, a second air flow sound source 4, a dust collecting drawer 6, an air inlet pressure adjusting assembly, a guide mechanism and an inner cylinder 14, the first air flow sound source 3 and the second air flow sound source 4 are both installed on the top of the box 1, the first air flow sound source 3 and the second air flow sound source 4 are respectively used for inhaling and discharging air flow, the dust collecting drawer 6 is connected to the bottom end of the box 1 and is used for collecting separated solid particles, the guide mechanism and the inner cylinder 14 are both fixedly connected to the lower part of the box 1, the air inlet pressure adjusting assembly is fixedly connected to the upper part of the box 1, and the air inlet pressure adjusting assembly is fixedly connected between the first air flow sound source 3.

[0036] The box 1 is internally provided with a vertical transverse partition plate, which divides the cavity in the columnar box 1 into a first dust removal area and a second dust removal area, the bottom parts of the first dust removal area and the second dust removal area are communicated through a connection pipeline 13, the top part of the side wall of the box 1 is provided with a smoke gas inlet 7 and a smoke gas outlet 5, the smoke gas inlet 7 and the smoke gas outlet 5 are respectively located in the first dust removal area and the second dust removal area, and the smoke gas inlet 7 and the smoke gas outlet 5 are symmetrically arranged with the central axis of the box 1 as the axis of symmetry, that is, the smoke gas inlet 7 and the smoke gas outlet 5 are located on the same diameter of the box 1, the first air flow sound source 3 and the second air flow sound source 4 are respectively installed at the top ends of the first dust removal area and the second dust removal area, the first air flow sound source 3 is used to drive the air flow to enter the first dust removal area from the smoke gas inlet 7, the air flow in the first dust removal area flows to the second dust removal area through the connection pipeline 13, and the second air flow sound source 4 is used to drive the air flow to flow from the second dust removal area to the atmosphere outside through the smoke gas outlet 5.

[0037] Specifically, the first dust removal area and the second dust removal area are both semi-cylindrical structures, the first dust removal area and the second dust removal area have consistent area sizes, the bottom of the transverse partition plate is provided with a through hole, and the connecting pipeline 13 is arranged through the through hole of the transverse partition plate to guide the first dust removal area and the second dust removal area.

[0038] As shown in Figure 3 and Figure 4 , the inlet orifice plate 2, the swirl vane 9 and the barrel diameter adjusting mechanism 10 are all arranged in the first dust removal area in the box body 1, the inlet orifice plate 2 is arranged below the first airflow sound source 3, the inlet orifice plate 2 is horizontally arranged at the top of the first dust removal area in the box body 1, a plurality of orifice plate through holes for guiding airflow are arranged on the inlet orifice plate 2, the plurality of swirl vanes 9 are arranged on the upper surface of the inlet orifice plate 2 in a uniform and interval manner along the circumference of the inlet orifice plate 2, each swirl vane 9 is arranged along the radial direction of the inlet orifice plate 2 and the rotation directions of the swirl vanes 9 are consistent, the outer periphery of the swirl vane 9 is fixedly connected with the side wall of the box body 1, and the barrel diameter adjusting mechanism 10 is connected to the upper surface of the inlet orifice plate 2.

[0039] As shown in Figure 3 and Figure 4 , the inlet orifice plate 2, the swirl vane 9 and the barrel diameter adjusting mechanism 10 are all arranged in the first dust removal area in the box body 1, the inlet orifice plate 2 is arranged below the first airflow sound source 3, the inlet orifice plate 2 is horizontally arranged at the top of the first dust removal area in the box body 1, a plurality of orifice plate through holes for guiding airflow are arranged on the inlet orifice plate 2, the plurality of swirl vanes 9 are arranged on the upper surface of the inlet orifice plate 2 in a uniform and interval manner along the circumference of the inlet orifice plate 2, each swirl vane 9 is arranged along the radial direction of the inlet orifice plate 2 and the rotation directions of the swirl vanes 9 are consistent, the outer periphery of the swirl vane 9 is fixedly connected with the side wall of the box body 1, and the barrel diameter adjusting mechanism 10 is connected to the upper surface of the inlet orifice plate 2.

[0040] The straight plate 101 and the supporting tile 102 constitute a hollow cylindrical cylinder with variable diameter, and the sliding vane 103 and the resonant cavity sleeve 104 are located in the cylinder. When the gas flow enters the first dust removal area from the flue gas inlet 7, the gas flow pushes the end of the inclined sliding vane 103 close to the resonant cavity sleeve 104 to move downward, the horizontal projection length of the sliding vane 103 increases, thereby increasing the spacing between the resonant cavity sleeve 104 and the supporting tile 102, and further changing the inner diameter ratio between the cylinder and the resonant cavity 31 in the first gas flow sound source 3, so as to realize the strong adsorption of the gas flow in the first dust removal area.

[0041] As shown in Figure 5 The guiding mechanism mainly comprises a conical filter screen 11 and a ring-shaped guiding disc 12. The conical filter screen 11 and the guiding disc 12 are located above the connecting pipeline 13, and the guiding mechanism is located in the first dust removal area in the box body 1. The outer periphery of the ring-shaped guiding disc 12 is fixedly connected to the inner side wall of the box body 1. The ring-shaped guiding disc 12 mainly comprises a plurality of louver blades which are uniformly and spaced apart along the same diameter of the ring-shaped guiding disc 12. The conical filter screen 11 mainly comprises a hollow conical cylinder located at the upper part and a hollow cylindrical column located at the lower part. A plurality of column through holes for guiding the gas flow are formed in the hollow conical cylinder. The hollow cylindrical column has an open structure at the upper end and the lower end. The outer side wall of the hollow cylindrical column is fixedly connected to the middle part of the guiding disc 12. The bottom of the conical filter screen 11 is in communication with the inlet of the connecting pipeline 13. The outlet of the connecting pipeline 13 is in communication with the lower part of the second dust removal area in the box body 1.

[0042] The inner cylinder 14 is located in the second dust removal area in the box body 1. The inner cylinder 14 has an open structure at the upper end and the lower end. A plurality of spiral blades are installed on the outer side wall of the inner cylinder 14. A plurality of inner cylinder through holes for guiding the gas flow are formed in the bottom side wall of the inner cylinder 14. The gas flow in the first dust removal area enters the connecting pipeline 13 after being separated by the conical filter screen 11. The gas flow flows from the outlet of the connecting pipeline 13 to the second dust removal area. The gas flow in the second dust removal area flows out of the second dust removal area from the bottom to the top through the inner cylinder 14.

[0043] The connecting pipeline 13 is provided with a pipeline wall surface only on the side wall. The top and the bottom of the connecting pipeline 13 are in communication, so that the bottom of the conical filter screen 11 is in communication with the dust collection drawer 6 at the bottom of the box body 1, and the bottom of the inner cylinder 14 is also in communication with the dust collection drawer 6.

[0044] Specifically, the inner wall surface of the horn of the second gas flow sound source 4 is provided with an overflow ring 8 to block part of the particles from flowing out of the box body 1 through the horn of the second gas flow sound source 4.

[0045] The sound frequency of the first airflow sound source 3 is greater than the sound frequency of the second airflow sound source 4, the frequency of the first airflow sound source 3 is 6000-10000Hz, the frequency of the second airflow sound source 4 is 1500-4000Hz, and the sound pressure levels of the first airflow sound source 3 and the second airflow sound source 4 are both 140-160dB.

[0046] The smoke inlet 7 and the smoke outlet 5 of the box body 1 respectively inhale and discharge through the side openings of the airflow sound sources, a plurality of cyclone vanes 9 are arranged on the inlet orifice plate 2, the sliding vane of the cylinder diameter adjusting mechanism 10 is located between the resonance cavity 31 of the first airflow sound source 3 and the cylinder, the cylinder is composed of a supporting tile 102 and a straight plate 101, the guide disc 12 guides the smoke flow direction through the oppositely arranged louvers, the connecting pipeline 13 is horizontally arranged between the first dust removal area and the second dust removal area, the inner cylinder 14 has a spiral plate on the outer wall surface, the spiral plate is used for centrifugal separation, the overflow ring 8 is installed at the lower end of the horn of the second airflow sound source 4, and the overflow ring 8 prevents particles from being directly discharged from the smoke outlet 5; the first airflow sound source 3 and the second airflow sound source 4 are supplied with air by an air compressor, and the air flow pressure provided is 0.1-0.3MPa; the inner and outer chamfer ratios of the resonance cavity 31 of the first airflow sound source 3 are 0.75-1.5, the conical filter screen 11 for inhaling airflow is fixed on the guide disc 12 and is horizontally provided with a plurality of holes, the guide disc is provided with oppositely arranged louvers, and the louvers are inclined towards the connecting pipeline 13. The connecting pipeline 13 is horizontally arranged between the first dust removal area and the second dust removal area. The inner cylinder 14 has a spiral structure on the outer wall surface and occupies 1 / 2-3 / 4 of the passage, and a plurality of holes are opened on the upper portion of the inner cylinder 14 and face the smoke outlet 5.

[0047] The overflow ring 8 is located at the lower end of the horn of the second airflow sound source and has a height of 10-30mm. The cylinder includes no less than 4 supporting tiles 101 and straight plates 102, and is used in cooperation with the limiting sliding groove on the inlet orifice plate 2 to adjust the diameter ratio between the cylinder and the resonance cavity 31, and the adjustment range is 2.0-2.7:1.

[0048] The embodiment of the application comprises the following steps:

[0049] First, the air compressor is used to supply air to the first airflow sound source 3 and the second airflow sound source 4, so that the first airflow sound source 3 and the second airflow sound source 4 are started, the first airflow sound source 3 drives the airflow to enter the first dust removal area from the flue gas inlet 7 after starting, the airflow in the first dust removal area exerts a thrust on the sliding vane 103 to make the end of the inclined sliding vane 103 close to the resonant cavity sleeve 104 move up and down, the horizontal projection length of the sliding vane 103 increases, the supporting tile 102 connected with the sliding vane 103 is radially outwardly opened along the inlet orifice plate 2, so that the interval between the resonant cavity sleeve 104 and the supporting tile 102 is increased, and then the inner diameter ratio between the cylinder and the resonant cavity 31 in the first airflow sound source 3 is changed, so that the strong adsorption of the airflow in the first dust removal area is realized, and then the airflow in the first dust removal area is separated by the conical filter screen 11 and enters the connecting pipeline 13, the airflow flows from the outlet of the connecting pipeline 13 to the second dust removal area, and the airflow in the second dust removal area flows out of the second dust removal area from the bottom to the top and flows to the atmosphere outside the flue gas outlet 5.

[0050] The flue gas entering amount of the smoke elimination device is affected by the diameter ratio of the cylinder to the resonant cavity 31, the air inlet pressure of the airflow sound source is adjusted to exert different pressures on the sliding vane 103 of the cylinder diameter adjusting mechanism 10, so that the distance between the resonant cavity and the first airflow sound source is changed, and then a higher suction amount is realized.

[0051] Under the condition of only using acoustic agglomeration for smoke treatment, the smoke treatment effects of the coupling centrifugal separation airflow sound source smoke elimination device disclosed in embodiment one and the prior art without centrifugal separation are compared. The driving pressure of the airflow sound source is 0.15 MPa, the frequency of the high-frequency airflow sound source is 8100 Hz, and the frequency of the low-frequency airflow sound source is 3000 Hz.

[0052] The results are shown in Figure 6 Under the action of only the airflow sound source, the smoke transmittance reaches about 85% after about 60s; under the combined action of the airflow sound source and centrifugal separation, the smoke transmittance can reach 90% after about 50s.

[0053] In addition, the microstructure of the fire smoke particles before and after treatment is photographed by a scanning electron microscope, and specific reference can be made to Figure 7 The particle size of the initial polystyrene fire smoke is very small, mostly around 1 um, and the distribution is relatively dispersed; the size of the agglomerate of the treated fire smoke particles can reach about 50 um, and the smoke elimination effect is very obvious.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A smoke elimination device for airflow sound sources coupled with centrifugal separation, characterized in that: The device includes a housing (1), a first airflow sound source (3), a second airflow sound source (4), a dust collection drawer (6), an air intake pressure regulating component, a guide mechanism, and an inner cylinder (14). The first airflow sound source (3) and the second airflow sound source (4) are both installed on the top of the housing (1). The dust collection drawer (6) is connected to the bottom of the housing (1) and is used to collect the separated solid particles. The guide mechanism and the inner cylinder (14) are both fixedly connected to the lower part of the housing (1). The air intake pressure regulating component is fixedly connected to the upper part of the housing (1), and the air intake pressure regulating component is fixedly connected to the first airflow sound source (3). The box (1) is equipped with a vertical partition, which divides the cavity inside the box (1) into a first dust removal zone and a second dust removal zone. The airflow in the first dust removal zone flows to the second dust removal zone through a connecting pipe (13). The bottoms of the first dust removal zone and the second dust removal zone are connected by a connecting pipe (13). The top of the side wall of the box (1) is provided with a flue gas inlet (7) and a flue gas outlet (5). The flue gas inlet (7) and the flue gas outlet (5) are located in the first dust removal zone and the second dust removal zone, respectively. The first airflow sound source (3) and the second airflow sound source (4) are installed at the top of the first dust removal zone and the second dust removal zone, respectively. The intake pressure regulating assembly includes an inlet orifice plate (2), a swirl vane (9), and a cylinder diameter regulating mechanism (10), both of which are mounted on the inlet orifice plate (2). The cylinder diameter adjustment mechanism (10) includes a straight plate (101), a support tile (102), a sliding blade (103), a resonant cavity sleeve (104), and a synchronous slider (105). The inner ring of the inlet orifice plate (2) is provided with several sliding grooves. The support tile (102) can be installed on the inlet orifice plate (2) radially. A straight plate (101) is provided between each two adjacent support tiles (102). The outer end face of the straight plate (101) is connected to the inner wall of the box (1) through a spring. The support tile (102) is movably installed on the straight plate track of the straight plate (101) through the support tile groove. The inner wall of the resonant cavity sleeve (104) is connected to the resonant cavity (31) of the first airflow sound source (3). One end of the sliding blade (103) is connected to the outer wall of the resonant cavity sleeve (104) through the synchronous slider (105), and the other end is fixedly connected to the inner wall of the support tile (102). The inlet orifice plate (2) is horizontally installed at the top of the first dust removal zone in the box (1). Several swirl blades (9) are evenly spaced along the circumference of the inlet orifice plate (2) and installed on the upper surface of the inlet orifice plate (2). Each swirl blade (9) is arranged radially along the inlet orifice plate (2). The outer periphery of the swirl blade (9) is fixedly connected to the side wall of the box (1). The cylinder diameter adjustment mechanism (10) is connected to the inlet orifice plate (2). The straight plate (101) and the support tile (102) form a hollow cylindrical cylinder. The sliding blade (103) and the resonant cavity sleeve (104) are both located inside the cylinder. When the airflow enters the first dust removal zone from the flue gas inlet (7), the airflow pushes the end of the sliding blade (103) near the resonant cavity sleeve (104) to move downward, thereby increasing the gap between the resonant cavity sleeve (104) and the support tile (102), and thus changing the inner diameter ratio between the cylinder and the resonant cavity (31) in the first airflow sound source (3).

2. The airflow sound source smoke elimination device with coupled centrifugal separation according to claim 1, characterized in that: The guiding mechanism is mainly composed of a conical filter (11) and a guide plate (12). The outer periphery of the annular guide plate (12) is fixedly connected to the inner wall of the box (1). The upper part of the conical filter (11) is provided with a columnar through hole. The lower part of the conical filter (11) is fixedly connected to the guide plate (12), and the bottom of the conical filter (11) is connected to the inlet of the connecting pipe (13).

3. The airflow sound source smoke elimination device with coupled centrifugal separation according to claim 1, characterized in that: The inner cylinder (14) is located in the second dust removal zone inside the box (1). Several spiral blades are installed on the outer side wall of the inner cylinder (14). The airflow in the first dust removal zone is separated by the conical filter (11) and enters the connecting pipe (13). The airflow flows from the outlet of the connecting pipe (13) to the second dust removal zone. The airflow in the second dust removal zone then flows out of the second dust removal zone from bottom to top through the inner cylinder (14).

4. A method for eliminating smoke from a coupled centrifugal airflow source in the apparatus described in any one of claims 1-3, characterized in that, Includes the following steps: First, an air compressor supplies air to the first airflow sound source (3) and the second airflow sound source (4). After the first airflow sound source (3) is started, it drives the airflow from the flue gas inlet (7) into the first dust removal zone. The airflow in the first dust removal zone applies a thrust to the sliding blade (103), causing the end of the sliding blade (103) near the resonant cavity sleeve (104) to move up and down. The support (102) connected to the sliding blade (103) is radially expanded outward along the inlet orifice plate (2), making... The gap between the resonant cavity sleeve (104) and the support tile (102) is increased, changing the inner diameter ratio between the cylinder and the resonant cavity (31) in the first airflow sound source (3). Then, the airflow adsorbed in the first dust removal zone is separated by the conical filter (11) and enters the connecting pipe (13). The airflow flows from the outlet of the connecting pipe (13) to the second dust removal zone. The airflow in the second dust removal zone flows out of the second dust removal zone from bottom to top through the inner cylinder (14) and flows into the outside atmosphere through the flue gas outlet (5).

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