Sound wave sounder and ash removal device

Abstract

The invention provides a sound wave generator and an ash removal device. A sound wave sounder comprises a shell and a sliding valve, a cavity is formed in the shell, an input port used for being connected with a compressed air source and an output port used for outputting sound waves are formed in the shell, the input port and the output port are both communicated with the cavity, the sliding valve is installed in the cavity in a sliding mode, and the output port is located on a sliding track of the sliding valve. Compressed air or nitrogen generates pressure difference under the action of the sliding valve to the sliding valve so as to force the sliding valve to slide in a reciprocating mode, and strong mechanical vibration is generated under special mechanical cooperation of the sliding valve and the structure body to form initial sound waves. Initial sound waves generate sound waves with an ultra-strong sound pressure level through resonance modulation and gradual amplification of the sound wave guide tube, and mechanical waves can be conveniently amplified and propagated through the sound wave guide tube. The sound wave acts on the dedusted surface, and the dust is taken away along with flue gas after being loosened by utilizing the resonance effect of the sound wave and the dust, so that the aim of deashing is fulfilled. The structure is simplified, and the dust removal efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ash cleaning equipment, in particular to a sound wave sound generator and an ash cleaning device. BACKGROUND

[0002] With the rapid development of science and technology, the furnace is widely used in various fields, and with the increase of use time, the furnace body usually remains ash, which affects the normal work of the furnace.

[0003] In the prior art, the ash cleaning device is usually used to clean the ash of the furnace, and the existing ash cleaning device is a mechanical vibration type, which has a complex structure and low ash removal efficiency. SUMMARY

[0004] The present application solves the technical problems of the prior art and provides a sound wave sound generator and an ash cleaning device.

[0005] The technical scheme for solving the above technical problems is as follows: a sound wave sound generator, comprising: a shell and a slide valve, the shell is provided with a cavity, the shell is provided with an input port for connecting a compressed gas source and an output port for outputting sound waves, the input port and the output port are in communication with the cavity, the slide valve is slidingly installed in the cavity, and the output port is located on the sliding track of the slide valve.

[0006] The beneficial effects of the technical scheme of the present application are: the pressure difference of compressed air or nitrogen gas is generated under the action of the slide valve on the slide valve, and the slide valve is forced to reciprocatingly slide, and under the special mechanical cooperation of the slide valve and the structure main body, strong mechanical vibration is generated to form initial sound waves. The initial sound waves are resonantly modulated and gradually amplified by the sound wave guide pipe to generate sound waves with super strong sound pressure level, which is convenient for mechanical waves to be amplified and propagated through the sound wave guide pipe. The sound waves act on the surface to be cleaned, and the resonance effect of the sound waves and the dust is used to make the dust loose and then carried away by the flue gas, so that the purpose of cleaning the ash is achieved. The structure is simplified and the ash removal efficiency is improved.

[0007] Further, the slide valve is provided with a piston end and a sealing section, the middle part of the slide valve is provided with an axial through hole, the sealing section is provided with a curved groove, and the slide valve is slidingly installed in the cavity through a return spring.

[0008] The beneficial effect of the further technical scheme is that the axial through hole plays a role in releasing pressure in time to make the slide valve slide normally. The curved groove is used to generate mechanical waves. Strong airflow generates strong mechanical vibration to form initial sound waves when passing through the curved groove of the slide valve. When the high-pressure airflow passes through the tapered gap between the sealing section and the sound generator body, the airflow speed increases rapidly during the passing process due to the tapered design, and at the same time, the high-speed airflow acts on the sharp annular edge of the curved groove of the sealing end to generate strong mechanical vibration to generate initial sound waves. The initial sound waves are resonantly modulated and gradually amplified by the sound wave guide tube to generate sound waves with super-strong sound pressure level, facilitating the amplification and propagation of mechanical waves through the sound wave guide tube. The return spring is used for the reset of the slide valve. With the release of compressed gas, the pressure in the sound generator cavity decreases, and under the action of the return spring, the tapered sealing surface of the sealing section and the sound generator body tightly fits, causing the pressure in the sound generator cavity to increase rapidly again, and the process is repeated.

[0009] Further, the diameter of the piston end is greater than the diameter of the sealing section.

[0010] The beneficial effect of the further technical scheme is that it is convenient to generate a pressure difference to make the slide valve reciprocate. Compressed gas as a power to generate sound waves enters the cavity of the generator from the input port, and the pressure in the cavity increases rapidly. The area of the piston end is greater than that of the sealing section, which promotes the movement of the slide valve towards the piston end.

[0011] Further, the sealing section is a tapered sealing structure, the curved groove is an annular groove, and the piston end, the sealing section and the curved groove are an integral structure.

[0012] The beneficial effect of the further technical scheme is that the curved groove is used to generate mechanical waves. Strong airflow generates strong mechanical vibration to form initial sound waves when passing through the curved groove of the slide valve. When the high-pressure airflow passes through the tapered gap between the sealing section and the sound generator body, the airflow speed increases rapidly during the passing process due to the tapered design, and at the same time, the high-speed airflow acts on the sharp annular edge of the curved groove of the sealing end to generate strong mechanical vibration to generate initial sound waves. The initial sound waves are resonantly modulated and gradually amplified by the sound wave guide tube to generate sound waves with super-strong sound pressure level, facilitating the amplification and propagation of mechanical waves through the sound wave guide tube. The piston end and the sealing section of the slide valve are an integral structure, which facilitates the linkage reaction and improves the load strength. The sealing section and the sound generator body adopt a tapered sealing form, and they are easy to separate and have good sealing performance.

[0013] Further, the shell comprises: a sound generator rear cover and a sound generator main body, the sound generator rear cover is connected with the sound generator main body, the sound generator rear cover and the sound generator main body are the cavity, a cylindrical piston cavity is arranged on the sound generator rear cover, the piston end is slidingly installed in the piston cavity, the piston end is in clearance fit with the piston cavity, and the two ends of the reset spring are connected with the piston cavity and the piston end respectively; and the input port and the output port are located on the sound generator main body.

[0014] The beneficial effects of the above further technical solutions are: the sound generator rear cover and the sound generator main body are arranged, so that the shell is convenient to install and maintain, and production and processing are facilitated; the sound generator rear cover is designed as a cylindrical cylinder structure, and the clearance fit is adopted between the slide valve piston end and the sound generator rear cover, so that the piston end is stably slid in the piston cavity of the sound generator rear cover.

[0015] Further, a conical sealing cavity matched with the sealing section is arranged at the output port of the sound generator main body, the conical sealing cavity is communicated with the output port, and the conical sealing cavity is located on the sliding track of the sealing section.

[0016] The beneficial effects of the above further technical solutions are: the sealing section and the sound generator main body adopt a conical sealing form, and the two are easy to separate and have good sealing performance; when the high-pressure airflow passes through the conical gap between the sealing section and the sound generator main body, the airflow velocity is rapidly increased in the process, and at the same time, the high-speed airflow acts on the sharp annular edge of the curved groove of the sealing end to generate strong mechanical vibration to generate an initial sound wave; the initial sound wave is resonantly modulated and gradually amplified by the sound wave guide pipe to generate a sound wave with super strong sound pressure level, so that the mechanical wave is amplified and propagated through the sound wave guide pipe.

[0017] In addition, the application also provides a dust cleaning device, which comprises the sound wave generator of any one of the above, and further comprises: a sound wave guide pipe, a conveying system and a compressed air source, the sound wave guide pipe is communicated with the output port, and the compressed air source is communicated with the input port through the conveying system.

[0018] The beneficial effects of the technical solutions of the application are: the pressure difference is generated under the action of compressed air or nitrogen on the slide valve, so that the slide valve reciprocally slides, and strong mechanical vibration is generated under the special mechanical cooperation between the slide valve and the structure main body to form an initial sound wave; the initial sound wave is resonantly modulated and gradually amplified by the sound wave guide pipe to generate a sound wave with super strong sound pressure level, so that the mechanical wave is amplified and propagated through the sound wave guide pipe; and the sound wave acts on the surface to be cleaned, the dust is loosened by the resonance effect of the sound wave and the dust, and then the dust is taken away with the flue gas, so that the dust cleaning purpose is achieved.

[0019] Further, the sound wave guide is a tapered cylinder, the sound wave guide is divided into a sound wave guide small section and a sound wave guide large section, the sound wave guide small section is communicated with the output port, and the sound wave guide large section is connected with the sound wave guide small section; the compressed gas source is compressed air or nitrogen.

[0020] The beneficial effect of the above further technical solution is that the compressed gas source is compressed air or nitrogen, which is convenient for converting the power of compressed gas into sound waves. The initial sound waves are subjected to the resonance modulation and step-by-step amplification of the sound wave guide to generate sound waves with super strong sound pressure level, which is convenient for the mechanical waves to be amplified and propagated through the sound wave guide.

[0021] Further, the sound wave guide is a tapered cylinder, the sound wave guide is divided into a sound wave guide small section and a sound wave guide large section, the sound wave guide small section is communicated with the output port, and the sound wave guide large section is connected with the sound wave guide small section; the compressed gas source is compressed air or nitrogen.

[0022] The beneficial effect of the above further technical solution is that the installation sleeve and the flange are arranged, which is convenient for welding and fixing the flange type installation sleeve with the furnace wall. The heat insulation material is used to reduce heat transfer and noise.

[0023] Further, the conveying system comprises a main pipeline and a bypass pipeline, two ends of the main pipeline are communicated with the compressed gas source and the input port respectively, a first valve, a second valve and a Y-shaped filter are installed on the main pipeline, the Y-shaped filter is located between the first valve and the second valve, the bypass pipeline is connected with the second valve in parallel, and a third valve is installed on the bypass pipeline.

[0024] The beneficial effect of the above further technical solution is that the compressed air or nitrogen provides a power gas source through the main pipeline. During operation, a certain amount of compressed gas is opened through the bypass pipeline, so that the dust cleaning device forms a positive pressure state, which plays a self-cleaning role on the dust cleaning device and avoids the backflow of flue dust in the furnace into the dust cleaning device. The Y-shaped filter is used to filter the compressed gas to prevent dust from polluting the dust cleaning device.

[0025] The advantages of the additional aspects of the application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0027] Figure 1The structural schematic view of the sound wave sound generator provided by the embodiment of the present application.

[0028] Figure 2 The structural schematic view of the slide valve provided by the embodiment of the present application.

[0029] Figure 3 The structural schematic view of the ash cleaning device provided by the embodiment of the present application.

[0030] Figure 4 The structural schematic view of the ash cleaning device provided by the embodiment of the present application.

[0031] Brief Description of the Drawings: 1, slide valve; 2, input port; 3, piston end; 4, sealing section; 5, shaft center through hole; 6, curved groove; 7, reset spring; 8, sound generator rear cover; 9, sound generator main body; 10, compressed air source; 11, sound wave guide tube small section; 12, sound wave guide tube large section; 13, mounting sleeve; 14, heat preservation material; 15, main pipeline; 16, bypass pipeline. DETAILED DESCRIPTION

[0032] The principles and features of the present application are described below in conjunction with the accompanying drawings, and the embodiments are only used to explain the present application and not to limit the scope of the present application.

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0035] It should be noted that: similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0036] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0037] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, if the terms "arrangement", "installation", "connection", "connection" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] As shown in Figure 1 and Figure 2 The embodiment of the present application provides a sound wave sound generator, which comprises a shell and a slide valve 1, the shell is provided with a cavity, the shell is provided with an input port 2 for connecting a compressed gas source and an output port for outputting sound waves, the input port 2 and the output port are communicated with the cavity, the slide valve 1 is slidingly installed in the cavity, and the output port is located on the sliding track of the slide valve 1.

[0039] The beneficial effects of the technical scheme of the present application are: the compressed air or nitrogen gas generates a pressure difference under the action of the slide valve on the slide valve, and then forces the slide valve to reciprocatingly slide, and under the special mechanical cooperation of the slide valve and the structure main body, strong mechanical vibration is generated to form an initial sound wave. The initial sound wave is resonantly modulated and gradually amplified by the sound wave guide pipe to generate a sound wave with super strong sound pressure level, which is convenient for mechanical wave to be amplified and propagated through the sound wave guide pipe. The sound wave acts on the dust removal surface, and the resonance effect of the sound wave and the dust is used to make the dust loose and then carried away by the flue gas, so that the dust removal purpose is achieved. The structure is simplified, and the dust removal efficiency is improved.

[0040] The shell and the slide valve can be made of metal.

[0041] The overall generator (sound wave sound generator) can adopt a fully enclosed design, without external exhaust or pressure relief port, to reduce the external leakage of noise.

[0042] As shown in Figure 1 and Figure 2As shown, further, the slide valve 1 is provided with a piston end 3 and a sealing section 4, the middle part of the slide valve 1 is provided with an axial through hole 5, the sealing section 4 is provided with a curved groove 6, and the slide valve 1 is slidably installed in the cavity through a return spring 7.

[0043] The beneficial effect of the above further technical solution is that the axial through hole plays a role in timely pressure release to make the slide valve normally slide. The curved groove is used to generate mechanical waves. Strong airflow generates strong mechanical vibration to form initial sound waves when passing through the curved groove of the slide valve. When the high-pressure airflow passes through the tapered gap between the sealing section and the sound generator body, the airflow speed increases rapidly during the process due to the tapered design, and at the same time, the high-speed airflow acts on the sharp annular edge of the curved groove of the sealing end to generate strong mechanical vibration to generate initial sound waves. The initial sound waves are resonantly modulated and gradually amplified by the sound wave guide tube to generate sound waves with super strong sound pressure level, facilitating the amplification and propagation of mechanical waves through the sound wave guide tube. The return spring is used for the reset of the slide valve. With the release of compressed gas, the pressure in the sound generator cavity decreases, and under the action of the return spring, the sealing section and the tapered sealing surface of the sound generator body are tightly fitted, causing the pressure in the sound generator cavity to increase rapidly again, and the process is repeated.

[0044] The return spring 7 can be a compression spring. An annular groove can be provided between the piston end 3 and the sealing section 4.

[0045] The axial through hole 5 of the slide valve 1 functions to release the pressure when the slide valve piston end (piston end 3) moves to compress the return spring 7, so that the cavity formed by the slide valve piston end (piston end 3) and the sound generator rear cover 8 cannot normally slide.

[0046] As shown in Figure 1 and Figure 2 Further, the diameter of the piston end 3 is greater than the diameter of the sealing section 4.

[0047] The beneficial effect of the above further technical solution is that it is convenient to generate a pressure difference to make the slide valve reciprocate. Compressed gas as the power to generate sound waves enters the cavity of the generator from the input port, and the pressure in the cavity increases rapidly. The piston end has a larger area than the sealing section, which promotes the slide valve to move towards the piston end.

[0048] The diameter of the piston end 3 can be designed to be smaller than the diameter of the sealing section 4 according to actual needs, and the return spring can be designed as a tension spring.

[0049] As shown in Figure 1 and Figure 2As shown, further, the sealing section 4 is a conical sealing structure, the curved groove 6 is an annular groove, and the piston end 3, the sealing section 4 and the curved groove 6 are integrally formed.

[0050] The beneficial effect of the above further technical solution is that the curved groove is used to generate mechanical waves. Strong airflow generates strong mechanical vibration to form initial sound waves when passing through the curved groove of the slide valve. When the high-pressure airflow passes through the conical gap between the sealing section and the sound generator body, the airflow speed increases rapidly during the process due to the conical design. At the same time, the high-speed airflow acts on the sharp annular edge of the curved groove of the sealing end to generate strong mechanical vibration to generate initial sound waves. The initial sound waves are resonantly modulated and gradually amplified by the sound wave guide tube to generate sound waves with super strong sound pressure level, facilitating the propagation of mechanical waves through the sound wave guide tube. The piston end and the sealing section of the slide valve are integrated structures, facilitating the generation of linkage reaction and improving the load strength. The sealing section and the sound generator body adopt a conical sealing form, which are easy to separate and have good sealing performance.

[0051] As shown in Figure 1 and Figure 2 , further, the housing comprises a sound generator rear cover 8 and a sound generator body 9, the sound generator rear cover 8 is connected with the sound generator body 9, and the sound generator rear cover 8 and the sound generator body 9 form the cavity therebetween. A cylindrical piston cavity is arranged on the sound generator rear cover 8, the piston end 3 is slidingly installed in the piston cavity, the piston end 3 and the piston cavity are in clearance fit, the two ends of the return spring 7 are connected with the piston cavity and the piston end 3 respectively, and the input port 2 and the output port are both located on the sound generator body 9.

[0052] The beneficial effect of the above further technical solution is that the sound generator rear cover and the sound generator body are provided to facilitate the installation and maintenance of the housing, and to facilitate production and processing. The sound generator rear cover is designed as a cylindrical cylinder structure, and the slide valve piston end is in clearance fit. This facilitates the stable sliding of the piston end in the piston cavity of the sound generator rear cover.

[0053] The cylindrical piston cavity is in communication with the cavity.

[0054] As shown in Figure 1 and Figure 2 , further, a conical sealing cavity adapted to the sealing section 4 is arranged at the output port of the sound generator body 9, the conical sealing cavity is in communication with the output port, and the conical sealing cavity is located on the sliding track of the sealing section 4.

[0055] The beneficial effects of the further technical scheme are that the sealing section and the sound generator main body adopt a conical sealing form, and the two are easy to separate and have good sealing performance. When the high-pressure airflow passes through the conical gap between the sealing section and the sound generator main body, the airflow velocity is rapidly increased in the process, and the high-speed airflow acts on the sharp annular edge of the curved groove of the sealing end to generate strong mechanical vibration to generate initial sound waves. The initial sound waves are resonantly modulated and gradually amplified by the sound wave guide pipe to generate sound waves with super-strong sound pressure level, facilitating the amplification and propagation of mechanical waves through the sound wave guide pipe.

[0056] As shown in Figure 3 and Figure 4 In addition, the application also provides a soot cleaning device, which comprises the sound wave sound generator according to any one of the above, and further comprises a sound wave guide pipe, a conveying system and a compressed air source 10, the sound wave guide pipe is in communication with the output port, and the compressed air source 10 is in communication with the input port through the conveying system.

[0057] The beneficial effects of the technical scheme are that the pressure difference generated by the action of compressed air or nitrogen on the slide valve forces the slide valve to reciprocate, and the strong mechanical vibration generated by the special mechanical cooperation between the slide valve and the structure main body forms initial sound waves. The initial sound waves are resonantly modulated and gradually amplified by the sound wave guide pipe to generate sound waves with super-strong sound pressure level, facilitating the amplification and propagation of mechanical waves through the sound wave guide pipe. The sound waves act on the soot cleaning surface, and the resonance effect of the sound waves and the dust makes the dust loose and carried away with the flue gas, thereby achieving the purpose of soot cleaning.

[0058] It should be noted that the compressed air source 10 (which can be the main gas pipeline of several soot blowers) only provides a stable compressed air source, and the control of the sound wave soot blower (soot cleaning device) is in the branch gas pipeline. The branch pipeline (branch gas pipeline) is divided into a main path (main pipeline 15) and a bypass (bypass pipeline 16), and an electromagnetic valve (second valve) is arranged on the main path (main pipeline 15). The soot blower (soot cleaning device) mainly controls the opening and closing of the electromagnetic valve (second valve) to control the on-off of the compressed air. In order to overcome the air pressure and realize the return of the slide valve, the reset spring 7 can realize the reciprocating motion of the slide valve.

[0059] The soot cleaning device provided by the embodiment of the application can be a high-efficiency slide valve type sound wave soot cleaning device, which is a new type of soot cleaning device in the sound wave soot cleaning device in terms of sound generation principle.

[0060] 1. Compressed air or nitrogen (nitrogen is used in special environments) is used as the power for generating sound waves in the high-efficiency slide valve type sound wave soot cleaning device, that is, the power of the compressed gas is converted into sound waves.

[0061] 2. The use of the slide valve, which is a key component of the sound generation structure.

[0062] 3. The spool is an integral structure, divided into piston end and sealing end (sealing section 4), the piston end diameter is smaller than the sealing end diameter, which is the key to generate pressure difference and make the spool reciprocate. The shaft center is provided with a through hole (shaft center through hole 5) to release pressure in time and make the spool slide normally.

[0063] 4. The rear cover of the sound generator is designed as a cylindrical cylinder structure and the piston end of the spool adopts a clearance fit.

[0064] 5. The piston sealing end (sealing section 4) adopts a conical sealing structure matched with the conical structure (conical cavity on the sound generator body 9) of the sound generator body, and a curved groove is designed on the conical structure of the piston sealing end (sealing section 4), which is the key to generate mechanical waves.

[0065] 6. The mechanical wave is amplified and propagated through the sound wave guide pipe, which is designed in two sections, namely the sound wave guide pipe small section and the sound wave guide pipe large section.

[0066] 7. The sound wave ash removal device is fixed by flange type installation sleeve and furnace wall welding.

[0067] 8. The compressed air or nitrogen (used in special environment) provides power source through the main pipeline, which includes: DN15 process pipeline, metal hose, electromagnetic valve (second valve), manual ball valve (first valve), Y-shaped filter and pipe fittings. In addition, it also includes bypass design, which includes: DN15 process pipeline, metal hose, manual ball valve (third valve) and pipe fittings. The purpose of adding bypass is: during operation, a certain amount of compressed gas is opened through the bypass to clean the ash removal device and avoid the backflow of flue dust in the furnace into the ash removal device.

[0068] As shown in Figure 3 and Figure 4 , further, the sound wave guide pipe is a conical cylinder, the sound wave guide pipe is divided into a sound wave guide pipe small section 11 and a sound wave guide pipe large section 12, the sound wave guide pipe small section 11 is communicated with the output port, and the sound wave guide pipe large section 12 is connected with the sound wave guide pipe small section 11; the compressed gas source 10 is compressed air or nitrogen.

[0069] The beneficial effects of the above further technical solutions are: the compressed gas source is compressed air or nitrogen, which is convenient for converting the power of compressed gas into sound waves. The initial sound wave is resonantly modulated and gradually amplified by the sound wave guide pipe to generate a sound wave with super strong sound pressure level, which is convenient for the mechanical wave to be amplified and propagated through the sound wave guide pipe.

[0070] The sound wave guide can be a horn-shaped structure, and the sound wave guide small section 11 and the sound wave guide large section 12 are divided according to the diameter of the sound wave guide. The section with a smaller diameter is the sound wave guide small section 11, and the section with a larger diameter is the sound wave guide large section 12. The end of the sound wave guide small section 11 can be provided with a flange, and the flange of the sound wave guide small section 11 is connected to the sound generator body 9 through a bolt. The sound wave guide small section 11 and the sound wave guide large section 12 can be an integrally formed structure.

[0071] As shown in Figure 3 and Figure 4 , further, the outside of the sound wave guide is sleeved with a mounting sleeve 13, the end of the mounting sleeve 13 is provided with a flange for connecting with the furnace wall, and the mounting sleeve 13 and the sound wave guide are provided with a heat preservation material 14.

[0072] The beneficial effects of the above further technical solutions are: the mounting sleeve and the flange are provided, which facilitates the welding and fixation of the flange mounting sleeve with the furnace wall. The heat preservation material is used to reduce heat transfer and noise.

[0073] The mounting sleeve 13 can be sleeved on the outer wall of the sound wave guide large section 12. The mounting sleeve 13 can be a cylindrical barrel. A cover plate can be installed at the end of the mounting sleeve 13, and the cover plate can be an annular plate body. The cover plate is used to block the heat preservation material 14.

[0074] As shown in Figure 3 and Figure 4 , further, the conveying system comprises a main pipeline 15 and a bypass pipeline 16. The two ends of the main pipeline 15 are respectively communicated with the compressed gas source 10 and the input port 2. The main pipeline 15 is provided with a first valve, a second valve and a Y-shaped filter. The Y-shaped filter is located between the first valve and the second valve. The bypass pipeline 16 is connected in parallel with the second valve, and the bypass pipeline 16 is provided with a third valve.

[0075] The beneficial effects of the above further technical solutions are: compressed air or nitrogen gas provides a power source through the main pipeline. During operation, a certain amount of compressed gas is opened through the bypass pipeline, so that the dust cleaning device forms a positive pressure state, which plays a self-cleaning role on the dust cleaning device, and avoids the backflow of flue dust in the furnace into the dust cleaning device. The Y-shaped filter is used to filter the compressed gas to prevent dust pollution of the dust cleaning device.

[0076] The second valve can be an electromagnetic valve, and the first valve and the third valve can be manual ball valves.

[0077] The purpose of increasing the design of the bypass process pipeline (bypass pipeline 16) is to open a small opening of the manual ball valve (the third valve) on the bypass process pipeline (bypass pipeline 16) during the use of the ash removal device, and the ash removal device cannot make the sound of the ash remover, so that the ash removal device forms a positive pressure state, and the sound generator is cleaned, and the smoke dust backflow is avoided to cause the ash accumulation in the ash removal device to be abnormal.

[0078] The ash removal device provided by the embodiment of the application can be a high-efficiency sliding valve type acoustic wave ash removal device, which utilizes the pressure difference generated by the action of compressed air or nitrogen on a special structure sliding valve to force the sliding valve to reciprocate, and simultaneously controls the compressed air regularly, and generates strong mechanical vibration to form an initial acoustic wave under the special mechanical cooperation between the sliding valve and the structure main body, and then the acoustic wave is resonantly modulated, gradually amplified and generated by the acoustic wave guide pipe to generate an acoustic wave with super strong sound pressure level, the acoustic wave acts on the surface to be cleaned, and the resonance effect of the acoustic wave and the dust is utilized to make the dust loose and then carried away by the flue gas, so that the purpose of ash removal is achieved.

[0079] The high-efficiency sliding valve type acoustic wave ash removal device (ash removal device) provided by the embodiment of the application mainly has the technical feature that a sliding valve structure design concept is adopted on the ash removal device, the acoustic principle is ingeniously utilized by the special design structure of the sliding valve to generate an acoustic wave, and the diversity of the acoustic wave ash removal device (ash removal device) is accumulated.

[0080] The ash removal device has the advantages of simple structure, low processing and operation cost, long service life and application in different ash removal environments, and has a promoting effect on the development of the acoustic wave ash remover.

[0081] Specific working principle: compressed gas as the power of generating sound waves from the compressed gas input port (input port 2) into the cavity of the generator, the pressure in the cavity increases rapidly, the area of the slide valve piston end (piston end 3) is larger than that of the slide valve sealing segment (sealing segment 4), prompting the slide valve 1 to move towards the slide valve piston end (piston end 3) direction, while the return spring 7 is compressed (the space between the slide valve 1 and the sound generator rear cover 8 is compressed, and the gas in the space is discharged through the axial through hole 5 of the slide valve 1), at this time, the slide valve piston end (piston end 3) of the slide valve 1 and the slide valve sealing segment (sealing segment 4) are integrated structure, resulting in linkage reaction, causing the slide valve sealing segment (sealing segment 4) and the conical sealing surface of the sound generator main body 9 to be broken, a large amount of compressed gas in the generator cavity is released from here, and the strong airflow produces strong mechanical vibration when passing through the sealing end curved groove (curved groove 6) of the slide valve 1, forming initial sound waves, and then the sound waves are modulated and amplified by the sound wave guide pipe to produce sound waves with strong sound pressure level. With the release of compressed gas, the pressure in the sound generator cavity decreases, and under the action of the return spring 7, the slide valve sealing segment (sealing segment 4) and the conical sealing surface of the sound generator main body 9 are tightly fitted, so that the pressure in the sound generator cavity increases again, and the process is repeated.

[0082] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; 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. An acoustic wave sounder characterized by, The utility model relates to a sound wave generator, comprising: A shell and a slide valve, the shell is provided with a cavity, the shell is provided with an input port for connecting a compressed gas source and an output port for outputting sound waves, the input port and the output port are communicated with the cavity, the slide valve is slidingly installed in the cavity, and the output port is located on the sliding track of the slide valve.

2. A sound generator according to claim 1, wherein The slide valve is provided with a piston end and a sealing section, the middle part of the slide valve is provided with an axial through hole, the sealing section is provided with a curved groove, and the slide valve is slidingly installed in the cavity through a return spring.

3. A sound generator according to claim 2, wherein The diameter of the piston end is larger than that of the sealing section.

4. A sound generator according to claim 2, wherein The sealing section is a conical sealing structure, the curved groove is an annular groove, and the piston end, the sealing section and the curved groove are integrally formed.

5. A sound generator according to claim 2, wherein The shell comprises a sound generator rear cover and a sound generator main body, the sound generator rear cover is connected with the sound generator main body, the sound generator rear cover and the sound generator main body form the cavity, the sound generator rear cover is provided with a cylindrical piston cavity, the piston end is slidingly installed in the piston cavity, the piston end is in clearance fit with the piston cavity, the two ends of the return spring are connected with the piston cavity and the piston end respectively, and the input port and the output port are located on the sound generator main body.

6. A sound generator according to claim 5, wherein The output port on the sound generator main body is provided with a conical sealing cavity matched with the sealing section, the conical sealing cavity is communicated with the output port, and the conical sealing cavity is located on the sliding track of the sealing section.

7. A soot cleaning device, characterized by The utility model relates to a sound wave generator, comprising:

8. The ash cleaning device of claim 7, wherein The sound wave guide is a conical cylinder, the sound wave guide is divided into a sound wave guide small section and a sound wave guide large section, the sound wave guide small section is communicated with the output port, and the sound wave guide large section is connected with the sound wave guide small section; the compressed gas source is compressed air or nitrogen.

9. The ash cleaning device of claim 7, wherein The outside of the sound wave guide is provided with a mounting sleeve, the end of the mounting sleeve is provided with a flange for connecting with a furnace wall, and heat preservation material is arranged between the mounting sleeve and the sound wave guide.

10. The ash cleaning device of claim 7, wherein The conveying system comprises a main pipeline and a bypass pipeline, the two ends of the main pipeline are communicated with the compressed gas source and the input port respectively, a first valve, a second valve and a Y-shaped filter are installed on the main pipeline, the Y-shaped filter is located between the first valve and the second valve, the bypass pipeline is connected with the second valve in parallel, and a third valve is installed on the bypass pipeline.

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