CN110332153A - A kind of continuous silencing means of multistage - Google Patents

A kind of continuous silencing means of multistage Download PDF

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Publication number
CN110332153A
CN110332153A CN201910774568.1A CN201910774568A CN110332153A CN 110332153 A CN110332153 A CN 110332153A CN 201910774568 A CN201910774568 A CN 201910774568A CN 110332153 A CN110332153 A CN 110332153A
Authority
CN
China
Prior art keywords
level
wall
anechoic chamber
hush pipe
silencing means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910774568.1A
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Chinese (zh)
Inventor
林洁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUBEI XIANGFAN XIANGHUA EMCHANICAL EQUIPMENTS Co Ltd
Original Assignee
HUBEI XIANGFAN XIANGHUA EMCHANICAL EQUIPMENTS Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HUBEI XIANGFAN XIANGHUA EMCHANICAL EQUIPMENTS Co Ltd filed Critical HUBEI XIANGFAN XIANGHUA EMCHANICAL EQUIPMENTS Co Ltd
Priority to CN201910774568.1A priority Critical patent/CN110332153A/en
Publication of CN110332153A publication Critical patent/CN110332153A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/66Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663Sound attenuation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/66Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663Sound attenuation
    • F04D29/664Sound attenuation by means of sound absorbing material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

The present invention provides a kind of continuous silencing means of multistage, including hush pipe ontology, the gas outlet that is set to the air inlet of hush pipe body bottom portion and is set to hush pipe bodies top, the level-one anechoic chamber and second level anechoic chamber for being set to hush pipe body interior, the level-one anechoic chamber is connected with second level anechoic chamber, it is provided with the perforated pipe being connected with air inlet in the level-one anechoic chamber, hush pipe inner body wall direction is provided with sound-absorbing material layer in the second level anechoic chamber.This programme is compact-sized, carries out noise reduction to gas using the concatenated mode of multistage noise-reducing structure, has apparent absorbing sound and lowering noise effect.

Description

A kind of continuous silencing means of multistage
Technical field
The present invention relates to muffling device technical field, in particular to a kind of continuous silencing means of multistage.
Background technique
In the industrial production, it will cause very big sound when bulk gas is discharged, form noise pollution, affect environment. Noise must be controlled by national requirements for environmental protection, therefore, it is necessary to silencer is mounted on to the airflow channel of the equipment such as blower In upper or air inlet system and exhaust system, play the role of absorbing the very noisy that exhaust gas generates.Such as Authorization Notice No. CN201720359924.X Chinese invention patent disclose a kind of cement station-service muffler, including acoustic damping mesh, silencing cotton and shell;Silencing cotton setting exist Between shell and acoustic damping mesh;Muffler be set as cuboid-type;Shell left side wall close to top position be provided with into Air port, outer casing bottom are provided with air outlet, so that the center line of the center line of air inlet and air outlet is at 90 degree of angles;Left side wall Be respectively arranged with several bloops with right side wall, left side wall and right side wall bloop muffler left and right directions and up and down Mutually be staggered arrangement on direction;There is noise reduction gap between silencing cotton and installation part, realize silencing cotton it is simple more It changes.
But above-mentioned patent application has the following problems, during noise reduction, the absorbing sound and lowering noise effect of device is unobvious, no The environmental requirement being able to satisfy in enterprise's production.
Summary of the invention
It is compact-sized the object of the present invention is to provide a kind of continuous silencing means of multistage, it is connected using multistage noise-reducing structure Mode to gas carry out noise reduction, have apparent absorbing sound and lowering noise effect.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of multistage continuous noise reduction dress Set, including hush pipe ontology, the gas outlet that is set to the air inlet of hush pipe body bottom portion and is set to hush pipe bodies top, It is set to the level-one anechoic chamber and second level anechoic chamber of hush pipe body interior, the level-one anechoic chamber is connected with second level anechoic chamber It is logical, the perforated pipe being connected with air inlet is provided in the level-one anechoic chamber, along hush pipe ontology in the second level anechoic chamber Inner wall direction is provided with sound-absorbing material layer.
By using above-mentioned technical proposal: the gas with sound wave from the perforated pipe that air inlet is introduced into level-one anechoic chamber, Gas is dispersed into different directions little airflow, the gas with sound wave that little airflow pools enters back into second level anechoic chamber, by two Sound-absorbing material layer in grade anechoic chamber absorbs, and is finally discharged by the gas outlet at the top of hush pipe.
As a further improvement of the present invention, pass through cross supporting frame phase point between level-one anechoic chamber and second level anechoic chamber Every.
By using above-mentioned technical proposal: cross supporting frame can play a part of support, connection, separation, support one respectively The sound-absorbing material layer in perforated pipe and second level anechoic chamber in grade anechoic chamber, and can guarantee level-one anechoic chamber and second level anechoic chamber Between connectivity.
As a further improvement of the present invention, level-one anechoic chamber includes spoiler, spoiler setting and air inlet to Corresponding position, for changing the flow direction of air inlet gas.
By using above-mentioned technical proposal: the gas of air inlet encounters baffling after spoiler, by the way of detour baffling Energy in energy effective noise reduction function.
As a further improvement of the present invention, perforated pipe offers several along the axial and circumferential direction of tube wall and disappears Sound hole, perforated pipe it is closed at one end, the other end open wide, closed one end is fixedly connected with cross supporting frame, open one end court To hush pipe body bottom portion.
As a further improvement of the present invention, it perforates and is provided with around inner wall spirally flow-disturbing fin on inside pipe wall.
By using above-mentioned technical proposal: the gas path change for passing through straight line is formed as vortex type path, forms whirlpool The direction of gas is changed to different directions by the bloop being then passed through on perforated pipe in manifold path, while the sound wave in gas Energy is dispersed and reflects, cancels out each other in different directions, and sound-absorbing effect is further improved.
It as a further improvement of the present invention, further include diaphragm rings, the diaphragm rings are annular plate-like structure, centre setting There is centre bore, the open one end of perforated pipe passes through centre bore and stretches to hush pipe body bottom portion, the outer wall of the diaphragm rings and noise reduction Cylinder inner body wall is fixedly connected, and center bore inner wall is fixedly connected with the outer wall of perforated pipe, and the diaphragm rings setting is remote in air inlet Side from hush pipe ontology cylinder bottom.
By using above-mentioned technical proposal: level-one anechoic chamber can be isolated with air inlet for diaphragm rings so that gas from into Port enters the bottom of hush pipe ontology subsequently into noise reduction in perforated pipe, prevent gas without perforated pipe consumption energy just into Enter second level anechoic chamber, improves gas noise reduction treatment effect.
As a further improvement of the present invention, perforation pipe outer wall, cross supporting frame, diaphragm rings and hush pipe inner body wall structure At gas expansion chamber, sound-absorbing material layer is provided on the inner wall of hush pipe ontology in the gas expansion chamber.
By using above-mentioned technical proposal: gas, which enters to expand in expansion chamber, to slow down, then has the sound-absorbing material layer on inner wall Sound wave energy is further absorbed, the sound wave energy in gas is thoroughly reduced, reduces the noise in gas.
As a further improvement of the present invention, it is opened up on tube wall of the perforated pipe axial direction by cross supporting frame to diaphragm rings There are several bloops circumferentially uniformly distributed along perforated pipe, bloop is staggered.
By using above-mentioned technical proposal: flow-disturbing effect when gas comes out from bloop can be improved, improve point of air-flow Effect is dissipated, reduces the collision resonance between gas, with further increasing silencing means sound-absorbing effect.
As a further improvement of the present invention, be arranged concentrically in second level anechoic chamber be prepared by sound-absorbing material layer it is more Layer sound-absorbing cylinder, multiple layer sound suction cylinder one end are connected in the card slot of cross supporting frame, and the other end is connected to the card of support frame two In slot, support frame two is fixed on the inner wall of hush pipe ontology.
As a further improvement of the present invention, setting is spaced between multiple layer sound suction cylinder.
Through the above technical solution:
The beneficial effects of the present invention are: sound-absorbing material layer and interval form annular multistage sound-absorbing channel, pass through sound-absorbing material Layer between channel when, sound wave can be adsorbed, to preferably absorb sound wave energy, the sound wave in gas is thoroughly inhaled It receives.
The beneficial effect of this programme is:
1, the continuous silencing means of multistage of the invention, is reduced to the first stage by the way of detour baffling in noise import Energy in noise is provided with several bloops, perforated pipe on perforation tube wall subsequently into perforated pipe closed at one end Outer to be arranged by sound-absorbing accommodating chamber, gas imports in sound-absorbing accommodating chamber after weakening sound wave energy across bloop second stage, The pressure and flow velocity of gas are reduced, the glass fibre that sound wave is arranged in sound-absorbing accommodating chamber after gas expansion carries out the phase III It absorbs, and the gas with sound wave enters the multistage channel of annular being made by glass fibre after absorbing, and carries out fourth stage to sound wave Ground shunts and absorption, by the way of multistage absorption, improves device and effectively absorbs to sound wave in gas.
2, the bloop on the perforated pipe of the continuous silencing means of multistage of the invention is staggered, can improve gas from noise reduction Flow-disturbing effect when hole comes out, improves the peptizaiton of air-flow, reduces the collision resonance between gas, further increases noise reduction dress Set ground sound-absorbing effect.
3, it is provided with around inner wall spirally flow-disturbing fin, makes on the perforated pipe of the multistage continuous silencing means in present invention ground The gas path change that straight line passes through is formed as vortex type path, forms the noise reduction being then passed through on perforated pipe in vortex type path The direction of gas is changed to different directions by hole, while the sound wave energy in gas is dispersed and in different directions reflection, phase It mutually offsets, further improves sound-absorbing effect.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.
Fig. 1 is the structural schematic diagram of multistage continuous silencing means of the invention.
Fig. 2 is the schematic diagram of the section structure of A-A in Fig. 1.
Fig. 3 is the schematic diagram for the position that bloop is distributed on perforated pipe.
Fig. 4 is the structural schematic diagram of flow-disturbing fin in perforated pipe of the present invention.
In figure, 1, hush pipe ontology, 2, air inlet, 3, gas outlet, 4, level-one anechoic chamber, 5, second level anechoic chamber, 6, perforation Pipe, 7, sound-absorbing material layer, 8, cross supporting frame, 9, spoiler, 10, bloop, 11, flow-disturbing fin, 12, diaphragm rings, 13, center Hole, 14, gas expansion chamber, 15, multiple layer sound suction cylinder.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with specific embodiment.Obviously, described Embodiment be only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiment of the present invention, ability Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to guarantor of the present invention The range of shield.
Embodiment 1: referring to Fig. 1-2, the present invention provides a kind of continuous silencing means of multistage, including hush pipe ontology 1, setting In 1 bottom of hush pipe ontology air inlet 2 and be set to the gas outlet 3 at the top of hush pipe ontology 1, be set to hush pipe ontology 1 Internal level-one anechoic chamber 4 and second level anechoic chamber 5, the level-one anechoic chamber 4 are connected with second level anechoic chamber 5, and the level-one disappears The perforated pipe 6 being connected with air inlet 2 is provided in tone chamber 4, along 1 inner wall direction of hush pipe ontology in the second level anechoic chamber 5 It is provided with sound-absorbing material layer 7.
Specifically, being mutually separated between level-one anechoic chamber 4 and second level anechoic chamber 5 by cross supporting frame 8.
Specifically, level-one anechoic chamber 4 includes spoiler 9, perforated pipe 6 and diaphragm rings 12, the spoiler 9 is arranged and air inlet Mouth 2 is to corresponding position, and for changing the flow direction of 2 gas of air inlet, perforated pipe 6 is opened along the axial and circumferential direction of tube wall Equipped with several bloops 10, perforated pipe 6 it is closed at one end, the other end opens wide, and closed one end and cross supporting frame 8 are fixed to be connected It connects, open one end is annular plate-like structure towards 1 bottom of hush pipe ontology, the diaphragm rings 12, and centre is provided with centre bore 13, the open one end of perforated pipe 6 passes through centre bore 13 and stretches to 1 bottom of hush pipe ontology, the outer wall of the diaphragm rings 12 and noise reduction Cylinder 1 inner wall of ontology is fixedly connected, and 13 inner wall of centre bore is fixedly connected with the outer wall of perforated pipe 6, the diaphragm rings 12 be arranged into Side of the port 2 far from 1 bottom of hush pipe ontology, 6 outer wall of perforated pipe, cross supporting frame 8, diaphragm rings 12 and hush pipe ontology 1 Inner wall constitutes gas expansion chamber 14, is provided with sound-absorbing material layer 7 on the inner wall of hush pipe ontology 1 in the gas expansion chamber 14.
Fig. 3 is participated in, if specifically, offering on tube wall of 6 axial direction of perforated pipe by cross supporting frame 8 to diaphragm rings 12 The dry bloop 10 circumferentially uniformly distributed along perforated pipe 6, the bloop 10 are staggered.
Specifically, the multiple layer sound suction cylinder 15 being prepared by sound-absorbing material layer 7 is arranged concentrically in second level anechoic chamber 5, 15 one end of multiple layer sound suction cylinder is connected in the card slot of cross supporting frame 8, and the other end is connected in the card slot of support frame two, support Frame two is fixed on the inner wall of hush pipe ontology 1, and setting is spaced between multiple layer sound suction cylinder 15.
The working principle of this programme is: being reduced in noise to the first stage by the way of detour baffling in noise import Energy, subsequently into perforated pipe 6 closed at one end, being provided with several bloops 10 on 6 tube wall of perforated pipe, outside perforated pipe 6 It is arranged by sound-absorbing accommodating chamber, gas imports in sound-absorbing accommodating chamber after weakening sound wave energy across 10 second stage of bloop, The pressure and flow velocity of gas are reduced, the glass fibre that sound wave is arranged in sound-absorbing accommodating chamber after gas expansion carries out the phase III It absorbs, and the gas with sound wave enters the multistage channel of annular being made by glass fibre after absorbing, and carries out fourth stage to sound wave Ground shunts and absorption, by the way of multistage absorption, improves device and effectively absorbs to sound wave in gas.
Embodiment 2: it referring to fig. 4, is provided on 6 inner wall of perforated pipe around inner wall spirally flow-disturbing fin 11, makes straight line By gas path change be formed as vortex type path, form the bloop 10 being then passed through on perforated pipe 6 in vortex type path, The direction of gas is changed to different directions, while the sound wave energy in gas is dispersed and reflects in different directions, mutually supports Disappear, further improves sound-absorbing effect.
The suspender that can flexibly stretch to one kind provided by the present invention above is described in detail.Tool used herein Principle and implementation of the present invention are described for body embodiment, and the above embodiments are only used to help understand originally The method and its core concept of invention.It should be pointed out that for those skilled in the art, not departing from this hair , can be with several improvements and modifications are made to the present invention under the premise of bright principle, these improvement and modification also fall into power of the present invention In the protection scope that benefit requires.

Claims (10)

1. a kind of continuous silencing means of multistage, it is characterised in that: including hush pipe ontology (1), be set to hush pipe ontology (1) bottom The air inlet (2) in portion and the gas outlet (3) being set at the top of hush pipe ontology (1) are set to the one of hush pipe ontology (1) inside Grade anechoic chamber (4) and second level anechoic chamber (5), the level-one anechoic chamber (4) are connected with second level anechoic chamber (5), and the level-one disappears The perforated pipe (6) being connected with air inlet (2) is provided in tone chamber (4), along hush pipe ontology in the second level anechoic chamber (5) (1) inner wall direction is provided with sound-absorbing material layer (7).
2. the continuous silencing means of multistage according to claim 1, it is characterised in that: the level-one anechoic chamber (4) and second level It is mutually separated between anechoic chamber (5) by cross supporting frame (8).
3. the continuous silencing means of multistage according to claim 1, it is characterised in that: the level-one anechoic chamber (4) includes disturbing Flowing plate (9), the spoiler (9) are arranged with air inlet (2) to corresponding position, for changing the flow direction of air inlet (2) gas.
4. the continuous silencing means of multistage according to claim 2, it is characterised in that: axis of the perforated pipe (6) along tube wall To with offer several bloops (10) in circumferential direction, perforated pipe (6) it is closed at one end, the other end opens wide, closed One end is fixedly connected with cross supporting frame (8), and open one end is towards hush pipe ontology (1) bottom.
5. the continuous silencing means of multistage according to claim 4, it is characterised in that: be arranged on perforated pipe (6) inner wall Have around the spiral flow-disturbing fin (11) of inner wall.
6. according to the continuous silencing means of multistage as claimed in claim 3 to 5, it is characterised in that: it further include diaphragm rings (12), The diaphragm rings (12) are annular plate-like structure, and centre is provided with centre bore (13), and perforated pipe (6) open one end passes through center Hush pipe ontology (1) bottom is stretched in hole (13), and the outer wall of the diaphragm rings (12) is fixedly connected with hush pipe ontology (1) inner wall, Centre bore (13) inner wall is fixedly connected with the outer wall of perforated pipe (6), and diaphragm rings (12) setting is in air inlet (2) far from noise reduction The side at cylinder ontology (1) cylinder bottom.
7. the continuous silencing means of multistage according to claim 6, it is characterised in that: perforated pipe (6) outer wall, cross-shaped Support (8), diaphragm rings (12) and hush pipe ontology (1) inner wall constitute gas expansion chamber (14), in the gas expansion chamber (14) Sound-absorbing material layer (7) are provided on the inner wall of hush pipe ontology (1).
8. the continuous silencing means of multistage according to claim 5, it is characterised in that: perforated pipe (6) axial direction by Several bloops (10) circumferentially uniformly distributed along perforated pipe (6), institute are offered on cross supporting frame (8) to the tube wall of diaphragm rings (12) It is staggered to state bloop (10).
9. the continuous silencing means of multistage according to claim 2, it is characterised in that: in the second level anechoic chamber (5) with one heart It is provided with the multiple layer sound suction cylinder (15) being prepared by sound-absorbing material layer (7), multiple layer sound suction cylinder (15) one end is connected to ten In the card slot of word support frame (8), the other end is connected in the card slot of support frame two, and support frame two is fixed on hush pipe ontology (1) Inner wall on.
10. the continuous silencing means of multistage according to claim 8, it is characterised in that: the multiple layer sound suction cylinder (15) it Between be spaced setting.
CN201910774568.1A 2019-08-21 2019-08-21 A kind of continuous silencing means of multistage Pending CN110332153A (en)

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CN201910774568.1A CN110332153A (en) 2019-08-21 2019-08-21 A kind of continuous silencing means of multistage

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Application Number Priority Date Filing Date Title
CN201910774568.1A CN110332153A (en) 2019-08-21 2019-08-21 A kind of continuous silencing means of multistage

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CN110332153A true CN110332153A (en) 2019-10-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110966263A (en) * 2019-11-26 2020-04-07 重庆美的通用制冷设备有限公司 Noise eliminator, noise eliminator assembly, axial flow fan and air conditioner
CN111577674A (en) * 2020-06-19 2020-08-25 连云港市造远机械设备有限公司 Pipeline end fan silencer
CN112780229A (en) * 2019-11-07 2021-05-11 中国石油天然气股份有限公司 Air-release silencer for oil well

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0526025A (en) * 1991-07-17 1993-02-02 Osaka Tanshiya Yohin Kogyo Kk Exhaust muffler
CN202707182U (en) * 2012-07-30 2013-01-30 湖北万安环保石化设备有限公司 Pressure reduction variable-frequency silencer
CN104575482A (en) * 2014-12-29 2015-04-29 浙江天晨胶业股份有限公司 Air silencer
CN105863783A (en) * 2016-06-08 2016-08-17 佘峰 Noise reduction device of automobile engine
CN107575283A (en) * 2017-09-28 2018-01-12 金华欧仑催化科技有限公司 A kind of silencer
CN207999575U (en) * 2018-03-26 2018-10-23 连云港宇泰电力设备有限公司 A kind of combined steam vent silencer
CN210715298U (en) * 2019-08-21 2020-06-09 湖北襄化机械设备有限公司 Multistage continuous silencing device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0526025A (en) * 1991-07-17 1993-02-02 Osaka Tanshiya Yohin Kogyo Kk Exhaust muffler
CN202707182U (en) * 2012-07-30 2013-01-30 湖北万安环保石化设备有限公司 Pressure reduction variable-frequency silencer
CN104575482A (en) * 2014-12-29 2015-04-29 浙江天晨胶业股份有限公司 Air silencer
CN105863783A (en) * 2016-06-08 2016-08-17 佘峰 Noise reduction device of automobile engine
CN107575283A (en) * 2017-09-28 2018-01-12 金华欧仑催化科技有限公司 A kind of silencer
CN207999575U (en) * 2018-03-26 2018-10-23 连云港宇泰电力设备有限公司 A kind of combined steam vent silencer
CN210715298U (en) * 2019-08-21 2020-06-09 湖北襄化机械设备有限公司 Multistage continuous silencing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112780229A (en) * 2019-11-07 2021-05-11 中国石油天然气股份有限公司 Air-release silencer for oil well
CN110966263A (en) * 2019-11-26 2020-04-07 重庆美的通用制冷设备有限公司 Noise eliminator, noise eliminator assembly, axial flow fan and air conditioner
CN111577674A (en) * 2020-06-19 2020-08-25 连云港市造远机械设备有限公司 Pipeline end fan silencer

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