Silencing system

Abstract

The invention discloses a silencing system, relates to the technical field of silencing equipment, and is characterized in that the structure of a silencer in the prior art is optimized and improved, so that the silencing structure of the silencer can be flexibly adjusted as required to adapt to different working environments; the technical effects that the adaptability of the silencing system to different working environments is good, the self silencing capacity can be flexibly adjusted according to the actual working environment, then the good silencing effect is achieved, and the applicability is high are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sound attenuation equipment, in particular to a sound attenuation system. BACKGROUND

[0002] At present, compressed air silencers are mainly used for sound attenuation of metallurgical, electric power, petroleum chemical industry and other equipment, and are mainly used for suppressing noise generated by high-pressure airflow during discharge.

[0003] In the prior art, due to differences in use environment, use scene and use demand, in order to obtain better sound attenuation effect, different specifications and different types of silencers are generally arranged at different positions of the same or different machines for sound attenuation. However, in the same factory area, the use of a large number of silencers of different specifications and types will not only cause great pressure on spare parts and maintenance work, but also make it difficult to determine which specification and type of silencer is more suitable for actual demand due to the gap between theoretical design and actual use, thereby causing inconvenience to design work.

[0004] Therefore, there is a need for a sound attenuation system that has good adaptability to different working environments (including different positions for installing silencers, different types of noise to be reduced, different sizes of noise to be reduced, and other differences in the same type of noise), can flexibly adjust its sound attenuation capacity according to the actual working environment, thereby obtaining better sound attenuation effect, and has strong applicability. SUMMARY

[0005] The present application provides a sound attenuation system, which solves the technical problems of poor adaptability of the silencer in the prior art to different working environments and poor sound attenuation effect, and achieves the technical effect of good adaptability of the sound attenuation system to different working environments, flexible adjustment of its sound attenuation capacity according to the actual working environment, better sound attenuation effect, and strong applicability.

[0006] The present application provides a sound attenuation system, which includes a connecting pipe, an energy releasing pipe, an acoustic absorbing pipe assembly, and an output pipe. The connecting pipe is sleeved and detachably fixed on the exhaust pipe of the component to be attenuated. The energy releasing pipe includes a horn pipe fixed on the connecting pipe, a channel pipe fixed at one end of the horn pipe, and an end circular plate fixed at the other end of the channel pipe; the end circular plate is provided with a plurality of through holes. The main body of the sound absorption pipe assembly is a cylindrical container with an inner built-in sound absorption band, which can be fixed on the end circular plate as needed and can adjust the posture of the inner built-in sound absorption band through magnetic force. One end is rotationally connected to the end circular plate. A plurality of through holes are arranged on the end face close to the end circular plate. One through hole is arranged close to the center position of the end face away from the end circular plate. When the sound absorption pipe assembly rotates, the flow direction of the gas flowing out of the energy release pipe will change due to the overlapping amount of the through holes. The output pipe is positioned at the end of the sound absorption pipe assembly away from the energy release pipe for exhaust.

[0007] Further, the sound absorption pipe assembly comprises a carrier column, a combined fixing assembly, a carrier rod, a sound absorption assembly and an adjusting assembly. The carrier column is a hard cylindrical column as a whole The combined fixing assembly detachably fixes the energy release pipe and the carrier column together as needed. The carrier rod is a hard straight rod coaxial with the carrier column and positioned inside the carrier column. The sound absorption assembly comprises a carrier pipe, a sound absorption band and a rod end strip. The carrier pipe is fixedly sleeved on the carrier rod. The sound absorption band is woven from fibers, one end of which is fixed on the outer wall of the carrier pipe, and the other end is positioned on the rod end strip and wound around the carrier pipe to form a loose roll. The adjusting assembly is used to adjust the position of the rod end strip through magnetic force, thereby indirectly adjusting the posture of the roll wound by the sound absorption band.

[0008] Further, the adjusting assembly comprises a ring-shaped guide rail, a sliding magnet and a magnet fixing assembly. The ring-shaped guide rail is a hard guide rail closely sleeved on the outer wall of the warehouse wall pipe for sliding guidance of the sliding magnet. The sliding magnet is a block-shaped or strip-shaped magnet with the same axial direction as the warehouse wall pipe, which slides on the ring-shaped guide rail. The magnet fixing assembly is used to detachably fix the sliding magnet at a specific position on the ring-shaped guide rail.

[0009] Further, the connecting pipe comprises a base pipe, an inclined ring-shaped pipe and a squeezing positioning body. The base pipe is a hard circular pipe. The inclined ring-shaped pipe is a horn-shaped pipe body made of rubber material, the opening of which faces away from the energy release pipe, and the outer ring is fixed on the inner wall of the base pipe. The number of inclined ring-shaped pipes is two. When the inclined ring-shaped pipe is used, the inner ring abuts against the outer wall of the exhaust pipeline of the sound absorption component. The extrusion positioning bodies are positioned on and through the base pipe, and the number is two or more, which are located between the two obliquely arranged annular pipes and have equal spacing between each other, and are used for fixing the base pipe on the exhaust pipe of the component to be silenced by the extrusion positioning.

[0010] Preferably, the extrusion positioning body comprises a round rod, a lever structure for driving the round rod to slide along the axis of the round rod, and a torsion spring positioned at the fulcrum of the lever structure. The round rod is positioned on and slides through the base pipe, and the axis of the round rod is perpendicular to the axis of the base pipe; the torsion spring is used to maintain the clamping force of the round rod on the exhaust pipe of the component to be silenced. In use, the sliding of the round rod is controlled by pressing the lever structure.

[0011] Preferably, the carrier pipe is fixed with a carrier spring. The carrier spring is a metal strip-shaped torsion spring, which is sleeved on the carrier pipe and fixed on the outer wall of the carrier pipe at one end close to the center of the carrier pipe, and fixed on the rod end strip at one end close to the edge; the sound absorbing belt is arranged close to the carrier spring. The presence of the carrier spring can make the roll of the sound absorbing belt easier to be controlled to deform.

[0012] Preferably, the number of sound absorbing assemblies on the carrier rod is two, and the number of adjusting assemblies on the warehouse wall pipe is also two; in use, the posture of the two rolls of sound absorbing belts is controlled by the two adjusting assemblies respectively, so that the silencing effect of the silencing system can be adjusted more finely.

[0013] Preferably, it further comprises a displacement assembly. The number of sound absorbing assemblies on the carrier rod is two. The carrier pipe of the sound absorbing assembly away from the output pipe is fixed on the carrier rod. The carrier pipe of the sound absorbing assembly close to the output pipe is slidingly positioned on the carrier rod. The displacement assembly is used to adjust the position of the sound absorbing assembly close to the output pipe relative to the carrier rod by extruding the carrier pipe, so as to adjust the silencing effect of the silencing system.

[0014] Preferably, the displacement assembly comprises an extrusion deformation plate, a pressure extrusion assembly, an end frame and an end pressure spring. The extrusion deformation plate is an arc-shaped metal plate, which is located between the two sound absorbing assemblies and provided with a through slot close to the center. The carrier rod penetrates through the through slot on the extrusion deformation plate. The extrusion deformation plate close to the center always abuts against the carrier pipe. The pressure extrusion assembly is used to bend and deform the end of the extrusion deformation plate by extruding one end or both ends of the extrusion deformation plate, so as to push the carrier pipe to slide. The end frame is fixed at the end of the carrier tube closest to the output tube; The end compression spring is a metal compression spring, and the two ends respectively abut against the end frame and the carrier frame; due to the presence of the end compression spring, the extrusion deformation plate will always abut against the end of the carrier tube.

[0015] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: By optimizing and improving the structure of the muffler in the prior art, the sound insulation structure can be flexibly adjusted (deformed on demand) to adapt to different working environments; effectively solve the poor adaptability of the muffler in the prior art to different working environments, and the poor sound insulation effect; thereby realizing the technical effect that the sound insulation system has good adaptability to different working environments, can flexibly adjust its sound insulation capacity according to the actual working environment, thereby obtaining good sound insulation effect and strong applicability. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an internal structure diagram of the sound insulation system of the present application; Figure 2 It is an appearance structure diagram of the sound insulation system of the present application; Figure 3 It is a schematic diagram of the positional relationship between the output tube and the sound absorption tube assembly; Figure 4 It is an exploded view of the sound insulation system of the present application; Figure 5 It is an appearance structure diagram of the sound absorption assembly; Figure 6 It is a structure diagram of the extrusion positioning body; Figure 7 It is a structure diagram of the rotating hole plate; Figure 8 It is a schematic diagram of the positional relationship between the multiple sound absorption bands; Figure 9 It is a schematic diagram of the positional relationship between the sound absorption band and the carrier spring; Figure 10 It is a schematic diagram of the positional relationship between the two adjusting assemblies; Figure 11 It is a schematic diagram of the positional relationship between the two sound absorption assemblies; Figure 12 It is a schematic diagram of the positional relationship between the displacement assembly and the two sound absorption assemblies; Figure 13 It is a structure diagram of the displacement assembly.

[0017] In the figure: The base pipe 110, the obliquely arranged annular pipe 120, the extrusion positioning body 130, the horn pipe 210, the channel pipe 220, the end circular plate 230, the carrier column 310, the rotating hole plate 311, the warehouse wall pipe 312, the sealing pipe plate 313, the carrier frame 314, the combined fixing assembly 320, the carrier rod 331, the carrier pipe 332, the sound absorbing belt 333, the rod end strip 334, the carrier spring 335, the annular guide rail 341, the sliding magnet 342, the magnet fixing assembly 343, the output pipe 400, the limiting body 510, the extrusion deformation plate 520, the pressure extrusion assembly 530, the end frame 540, and the end pressure spring 550. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the present application, the present application will be described in more detail below with reference to the relevant drawings; the preferred embodiments of the present application are shown in the drawings, but the present application can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0019] It should be noted that the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only embodiment.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used herein in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0021] As shown in Figures 1 to 5 , the sound absorbing system of the present application comprises a connecting pipe, an energy releasing pipe, a sound absorbing pipe assembly, and an output pipe 400.

[0022] As shown in Figure 1 and Figure 2 , the connecting pipe is sleeved and detachably fixed on the exhaust pipe of the component to be silenced, plays a bearing and supporting role, and is tubular as a whole, comprising a base pipe 110, an obliquely arranged annular pipe 120, and an extrusion positioning body 130. The base pipe 110 is a hard circular pipe. The obliquely arranged annular pipe 120 is a rubber material horn-shaped pipe body, the opening of which faces away from the energy releasing pipe, and the outer ring is fixed on the inner wall of the base pipe 110; the number of the obliquely arranged annular pipes 120 is two; when in use, the inner ring of the obliquely arranged annular pipe 120 abuts against the outer wall of the exhaust pipe of the component to be silenced. The extrusion positioning bodies 130 are positioned on and through the base pipe 110, and the number is two or more, which are located between two inclined annular pipes 120 and have equal spacing between each other, and are used to fix the base pipe 110 on the exhaust pipe of the component to be silenced by the extrusion positioning.

[0023] As shown in Figure 1 and Figure 4 , the energy releasing pipe is used to reduce noise by diffusion and pressure reduction, and is positioned at the end of the adapter pipe, including the horn pipe 210, the channel pipe 220 and the end circular plate 230; The horn pipe 210 is a horn-shaped hard pipe body, one end of which has a larger diameter and the other end has a smaller diameter, and the large end diameter is at least 1.5 times the small end diameter, and the small end is fixed at the end of the adapter pipe and is coaxial with the base pipe 110; The channel pipe 220 is a metal circular pipe, and the axial length is less than 3 times the diameter, and is fixed at the large end of the horn pipe 210; The end circular plate 230 is a hard circular plate, and the edge is fixed at the end of the channel pipe 220 away from the horn pipe 210; the end circular plate 230 is provided with a plurality of circular through holes, and the sum of the areas of the circular through holes is greater than 2 times the cross-sectional area of the base pipe 110.

[0024] As shown in Figures 2 to 4 , the sound absorbing pipe assembly is in a cylindrical shape as a whole, including a carrier column 310, a combination fixing assembly 320 for combining and fixing the energy releasing pipe and the carrier column 310 together, a carrier rod 331, a sound absorbing assembly and an adjusting assembly; The carrier column 310 is a hard cylinder as a whole, including a rotating hole plate 311, a warehouse wall pipe 312 and a sealing pipe plate 313; the rotating hole plate 311 is a hard circular plate, coaxial with the end circular plate 230, closely arranged against the end circular plate 230 and rotationally connected to the end circular plate 230 around its own axis; the rotating hole plate 311 is provided with a plurality of circular through holes, and the sum of the areas of the circular through holes is greater than 2 times the cross-sectional area of the base pipe 110; when the rotating hole plate 311 rotates relative to the end circular plate 230, the areas of the holes for gas flow through the two plates change and different sound absorbing effects are obtained; the warehouse wall pipe 312 is a hard circular pipe, coaxial with the energy releasing pipe, and one end is fixed to the inner wall of the rotating hole plate 311 close to the edge; the sealing pipe plate 313 is a hard circular plate with a through hole in the center, and the outer ring edge is fixed to the edge of the warehouse wall pipe 312 away from the rotating hole plate 311; the inner diameter of the through hole of the sealing pipe plate 313 is greater than the inner diameter of the base pipe 110; the inner wall of the through hole of the sealing pipe plate 313 is fixed with a carrier 314, which is in a rod, plate or frame structure, and is used to support the sound absorbing assembly; the rotating hole plate 311, the warehouse wall pipe 312 and the sealing pipe plate 313 together form a cylindrical sound absorbing warehouse; The combined fixing component 320 is a clamp structure, a threaded connection structure, etc., which can detachably fix the energy release tube and the carrier column 310 together as needed. The carrier rod 331 is a rigid straight rod, coaxial with the carrier column 310, with one end fixed on the rotating perforated plate 311 and the other end fixed on the carrier frame 314; like Figure 5 As shown, the sound-absorbing assembly is located inside the carrier column 310 and is used for sound absorption. It includes a carrier tube 332, a sound-absorbing strip 333, and a rod end strip 334. The carrier tube 332 is sleeved and fixed on the carrier rod 331 to position the sound-absorbing strip 333. The sound-absorbing strip 333 is made of woven fibers and is strip-shaped. One end of the sound-absorbing strip 333 is fixed to the outer wall of the carrier tube 332, and the other end is positioned on the rod end strip 334. The width is the same as or approximately the length of the carrier tube 332, and it is loosely wound around the carrier tube 332. The rod end strip 334 is a hard strip made of ferromagnetic material and can be attracted by a magnet. like Figure 3 As shown, the adjustment component is used to adjust the position of the rod end bar 334 by magnetic force, thereby indirectly adjusting the posture of the roll formed by the sound-absorbing tape 333 and thus adjusting its sound absorption effect. The adjustment assembly includes an annular guide rail 341, a sliding magnet 342, and a magnet fixing assembly 343. The annular guide rail 341 is a rigid guide rail that fits tightly against and is sleeved on the outer wall of the bin wall tube 312, serving as a guide for the sliding magnet 342. The sliding magnet 342 is a block or strip magnet with its length direction aligned with the axial direction of the bin wall tube 312, and slides on the annular guide rail 341. The magnet fixing assembly 343 is used to detachably fix the sliding magnet 342 to a specific position on the annular guide rail 341 as needed.

[0025] The output tube 400 is a rigid round tube, one end of which is fixed to the through hole of the sealing plate 313 for discharging gas.

[0026] When using the silencing system of this application: First, attach the connecting pipe to the exhaust pipe of the component to be silenced and fix the connecting pipe in place; run the component to be silenced (the component that generates noise); then rotate the carrier column 310 and adjust the posture of the sound-absorbing component; use the human ear (with protective earplugs if necessary) or a decibel measuring instrument to judge the silencing status in real time; continuously adjust and rotate the carrier column 310 and the sound-absorbing component until it is determined that the current state of the silencing system has the best silencing effect; finally, fix the carrier column 310 and the sliding magnet 342.

[0027] Furthermore, the compression positioning body 130 is a combination of bolts and nut columns fixed on the base pipe 110. The bolts and nut columns are threadedly connected. When it is necessary to fix the base pipe 110, multiple bolts are rotated to achieve clamping and fixing.

[0028] Further, the end of the bolt located in the space surrounded by the base pipe 110 is provided with a rubber soft pad.

[0029] Considering that there is no need for sound attenuation when part of the equipment is in normal operation, the addition of a sound attenuator will increase the cost, but if the operating personnel are close to the sound source for maintenance or repair, the noise will have a great impact on the operating personnel; therefore, preferably, the connecting pipe has a quick-change function, which can be conveniently installed and removed in a short time, so as to attenuate the sound only during maintenance, thereby creating a better working environment for maintenance personnel; as shown in Figure 6 The extrusion positioning body 130 includes a round rod, a lever structure for driving the round rod to slide along its own axis, and a torsion spring positioned at the fulcrum of the lever structure; the round rod penetrates and slides on the base pipe 110, and its own axis is perpendicular to the axis of the base pipe 110; the torsion spring is used to maintain the clamping force of the round rod on the exhaust pipe of the component to be attenuated; in use, the sliding of the round rod is controlled by pressing the lever structure.

[0030] Further, as shown in Figure 7 A plurality of through holes are provided on the rotating hole plate 311, and the sizes of the through holes at different positions are different.

[0031] Further, scales are provided on the channel pipe 220, the carrier column 310, and / or the annular guide rail 341, and the posture of the rotating hole plate 311 and the sound-absorbing belt 333 can be judged according to the scales in use.

[0032] Preferably, as shown in Figure 8 The number of sound-absorbing belts 333 positioned on the carrier pipe 332 is multiple, and the multiple sound-absorbing belts 333 are stacked together, and both ends are fixed on the carrier pipe 332 and the rod end strip 334, respectively.

[0033] Further, as shown in Figure 9 A carrier spring 335 is fixed on the carrier pipe 332; the carrier spring 335 is a metal belt-shaped torsion spring, which is sleeved on the carrier pipe 332 and has one end fixed on the outer wall of the carrier pipe 332 near the center thereof and the other end fixed on the rod end strip 334 near the edge; the sound-absorbing belt 333 is arranged in close contact with the carrier spring 335; the presence of the carrier spring 335 can make the roll of the sound-absorbing belt 333 more easily controlled to deform.

[0034] Further, a pipe body made of fiber material is fixed on the inner wall of the warehouse wall pipe 312, and the pipe body made of fiber material is arranged in close contact with the inner wall of the warehouse wall pipe 312 and coaxially with the inner wall, thereby playing a sound-absorbing role.

[0035] Further, to avoid collision noise caused by vibration, the rod end strip 334 is covered with a soft sleeve.

[0036] Further, the annular guide rail 341 is composed of two plate-shaped ring bodies with an L-shaped longitudinal section.

[0037] Further, the sliding magnet 342 is provided with a through hole; the magnet fixing assembly 343 comprises a nut column and a bolt positioned on the nut column; when the sliding magnet 342 needs to be fixed, the bolt is tightened to achieve the fixing.

[0038] Preferably, as shown in Figure 10 and Figure 11 , the number of sound absorption assemblies on the carrier rod 331 is two, and the number of adjusting assemblies on the warehouse wall pipe 312 is also two; in use, the postures of the two rolls of sound absorption belts 333 are controlled by the two adjusting assemblies respectively, so that the sound elimination effect of the sound elimination system can be adjusted more finely.

[0039] Preferably, as shown in Figure 12 and Figure 13 , in order to further finely adjust the sound elimination effect of the sound elimination system, the sound elimination system further comprises a displacement assembly; the number of sound absorption assemblies on the carrier rod 331 is two, and the sum of the axial lengths of the two sound absorption assemblies is less than 0.7 times the length of the carrier rod 331; the carrier pipe 332 of the sound absorption assembly away from the output pipe 400 is fixed on the carrier rod 331; the carrier pipe 332 of the sound absorption assembly close to the output pipe 400 is slidingly positioned (but not rotating) on the carrier rod 331; the displacement assembly is used to adjust the position of the sound absorption assembly close to the output pipe 400 relative to the carrier rod 331 by extruding the carrier pipe 332, so as to adjust the sound elimination effect of the sound elimination system.

[0040] Further, as shown in Figure 13 , the displacement assembly comprises an extrusion deformation plate 520, a pressure extrusion assembly 530, an end bracket 540 and an end compression spring 550; the extrusion deformation plate 520 is an arc-shaped metal plate, which is provided with a through slot at a position close to the center; the extrusion deformation plate 520 is located between the two sound absorption assemblies; the carrier rod 331 penetrates through the through slot on the extrusion deformation plate 520; the position close to the center of the extrusion deformation plate 520 always abuts against the carrier pipe 332 of the sound absorption assembly close to the output pipe 400; the pressure extrusion assembly 530 is used to bend and deform the extrusion deformation plate 520 by extruding one end or both ends of the extrusion deformation plate 520, so as to push the carrier pipe 332 to slide; the end bracket 540 is a radial hard frame body, which is fixed at the end of the carrier pipe 332 closest to the output pipe 400; the carrier frame 314 is also a radial hard frame body; the end compression spring 550 is a metal compression spring, which abuts against the end bracket 540 and the carrier frame 314 at two ends respectively; due to the presence of the end compression spring 550, the extrusion deformation plate 520 will always abut against the end of the carrier pipe 332; the distance between the two sound absorption assemblies is adjusted by adjusting the pressure extrusion assembly 530; Further, the shifting assembly further comprises a limiting body 510, which is a hard strip, multiple in number, positioned on the inner wall of the warehouse wall pipe 312 near the middle part, and has the same length direction as the length direction of the carrier pipe 332, and is used to limit the movement of the extrusion deformation plate 520 so as to keep it always in the state of being approximately perpendicular to the carrier pipe 331.

[0041] Further, the pressure applying and extruding assembly 530 is a combination of a bolt and a threaded through hole provided on the warehouse wall pipe 312.

[0042] Further, the end of the extrusion deformation plate 520 is provided with a penetrating hole, which is a non-through hole; the bolt of the pressure applying and extruding assembly 530 is inserted into the penetrating hole and always abuts against the bottom of the penetrating hole.

[0043] Preferably, the output pipe 400 is densely provided with small holes.

[0044] The technical solutions in the embodiments of the present application have at least the following technical effects or advantages: The technical problems of poor adaptability and poor silencing effect of the muffler in the prior art for different working environments are solved, and the technical effect of good adaptability of the silencing system to different working environments, flexible adjustment of the silencing ability according to the actual working environment, better silencing effect and strong applicability is achieved.

[0045] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sound attenuation system characterized by: The application relates to a sound-absorbing device, which comprises a connecting pipe, a sound-releasing pipe, a sound-absorbing pipe assembly and an output pipe (400). The connecting pipe is sleeved and detachably fixed on an exhaust pipe of a component requiring sound absorption. The sound-releasing pipe comprises a horn pipe (210) fixed on the connecting pipe, a channel pipe (220) fixed at one end of the horn pipe (210) and an end circular plate (230) fixed at the other end of the channel pipe (220); a plurality of through holes are arranged on the end circular plate (230). The main body of the sound-absorbing pipe assembly is a cylindrical container with an internally arranged sound-absorbing band body in a roll shape, which can be fixed on the end circular plate (230) as required and can adjust the posture of the sound-absorbing band body in the roll shape in the interior through magnetic force; one end is rotationally connected to the end circular plate (230); a plurality of through holes are arranged on the end face close to the end circular plate (230); one through hole is arranged on the end face away from the end circular plate (230) and close to the central position; when the sound-absorbing pipe assembly rotates, the flow direction of the gas flowing out of the sound-releasing pipe will change due to the overlapping amount of the through holes. The output pipe (400) is positioned at the end of the sound-absorbing pipe assembly away from the sound-releasing pipe and is used for exhausting gas.

2. The sound attenuation system of claim 1, wherein: The sound-absorbing pipe assembly comprises a carrier column (310), a combined fixing assembly (320), a carrier rod (331), a sound-absorbing assembly and an adjusting assembly. The carrier column (310) is a hard cylindrical column as a whole The combined fixing assembly (320) detachably fixes the sound-releasing pipe and the carrier column (310) together as required. The carrier rod (331) is a hard straight rod coaxial with the carrier column (310) and positioned in the interior of the carrier column (310). The sound-absorbing assembly comprises a carrier pipe (332), a sound-absorbing band (333) and a rod end strip (334). The carrier pipe (332) is sleeved and fixed on the carrier rod (331). The sound-absorbing band (333) is woven by fibers, one end is fixed on the outer wall of the carrier pipe (332), the other end is positioned on the rod end strip (334) and is wound around the carrier pipe (332) to form a loose roll. The adjusting assembly is used for adjusting the position of the rod end strip (334) through magnetic force and indirectly adjusting the posture of the roll formed by the sound-absorbing band (333).

3. The sound attenuation system of claim 2, wherein: The adjusting assembly comprises a ring-shaped guide rail (341), a sliding magnet (342) and a magnet fixing assembly (343). The ring-shaped guide rail (341) is a hard guide rail which is tightly sleeved on the outer wall of the warehouse wall pipe (312) and is used for guiding the sliding of the sliding magnet (342). The sliding magnet (342) is a block-shaped or strip-shaped magnet, the length direction of which is the same as the axial direction of the warehouse wall pipe (312) and the sliding magnet (342) slides on the ring-shaped guide rail (341). The magnet fixing assembly (343) is used for detachably fixing the sliding magnet (342) on a specific position of the ring-shaped guide rail (341) as required.

4. The sound attenuation system of claim 2, wherein: The connecting pipe comprises a base pipe (110), an obliquely arranged ring-shaped pipe (120) and an extrusion positioning body (130). The base pipe (110) is a hard cylindrical pipe. The oblique annular pipe (120) is a rubber material horn-shaped pipe body, the opening is directed away from the energy release pipe, and the outer ring is fixed on the inner wall of the base pipe (110); the number of the oblique annular pipe (120) is two; when the oblique annular pipe (120) is used, the inner ring is abutted against the outer wall of the exhaust pipeline of the component to be damped; The extrusion positioning body (130) is positioned on and penetrates through the base pipe (110), the number is two or more, and the extrusion positioning body (130) is located between the two oblique annular pipes (120) and has an equal spacing between the two extrusion positioning bodies (130), so as to fix the base pipe (110) on the exhaust pipeline of the component to be damped by the extrusion positioning mode.

5. The sound attenuation system of claim 4, wherein: The extrusion positioning body (130) comprises a round rod, a lever structure for driving the round rod to slide along the axis of the round rod, and a torsion spring positioned at the fulcrum of the lever structure; The round rod penetrates and slides on the base pipe (110), and the axis of the round rod is perpendicular to the axis of the base pipe (110); the torsion spring is used to maintain the clamping force of the round rod on the exhaust pipeline of the component to be damped; When used, the sliding of the round rod is controlled by pressing the lever structure.

6. The sound attenuation system of claim 3, wherein: The carrier pipe (332) is fixed with a carrier spring (335); The carrier spring (335) is a metal strip-shaped torsion spring, which is sleeved on the carrier pipe (332) and fixed on the outer wall of the carrier pipe (332) at one end close to the center of the carrier spring (335), and fixed on the rod end strip (334) at one end close to the edge; the sound absorbing belt (333) is arranged in close contact with the carrier spring (335); The presence of the carrier spring (335) can make the roll of the sound absorbing belt (333) more easily controlled to deform.

7. A sound attenuation system as claimed in claim 3 or 6, characterised in that: The number of the sound absorbing assemblies on the carrier rod (331) is two, and the number of the adjusting assemblies on the warehouse wall pipe (312) is also two; when used, the postures of the two rolls of the sound absorbing belt (333) are respectively controlled by the two adjusting assemblies, so that the sound elimination effect of the sound elimination system can be more finely adjusted.

8. The sound attenuation system of claim 7, wherein: Further comprising a displacement assembly; The number of the sound absorbing assemblies on the carrier rod (331) is two; The carrier pipe (332) of the sound absorbing assembly away from the output pipe (400) is fixed on the carrier rod (331); The carrier pipe (332) of the sound absorbing assembly close to the output pipe (400) is slidingly positioned on the carrier rod (331); The displacement assembly is used to adjust the position of the sound absorbing assembly close to the output pipe (400) relative to the carrier rod (331) by extruding the carrier pipe (332), so as to adjust the sound elimination effect of the sound elimination system.

9. The sound attenuation system of claim 8, wherein: The displacement assembly comprises an extrusion deformation plate (520), a pressure extrusion assembly (530), an end frame (540), and an end pressure spring (550); The extrusion deformation plate (520) is an arc-shaped metal plate, which is located between the two sound absorbing assemblies and provided with a through groove at a position close to the center; The carrier rod (331) penetrates the through groove on the extrusion deformation plate (520); The position close to the center of the extrusion deformation plate (520) is always abutted against the carrier pipe (332); The pressure extrusion assembly (530) is used to bend and deform the end of the extrusion deformation plate (520) by extruding the end of the extrusion deformation plate (520) at one end or both ends of the extrusion deformation plate (520), so as to push the carrier pipe (332) to slide. The end frame (540) is fixed at the end of the carrier tube (332) closest to the output tube (400); The end compression spring (550) is a metal compression spring, with two ends respectively abutting against the end frame (540) and the carrier frame (314); due to the presence of the end compression spring (550), the extrusion deformation plate (520) will always abut against the end of the carrier tube (332).

10. The sound attenuation system of claim 9, wherein: The shifting assembly further comprises a limiting body (510), which is a hard strip, multiple in number, positioned on the inner wall of the bin wall tube (312) near the middle part, with the length direction being the same as the length direction of the carrier tube (332), for limiting the movement of the extrusion deformation plate (520) so that it always maintains the state of being approximately perpendicular to the carrier rod (331).

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