CN106205588B - Multilayer micro-perforated structure noise elimination flow deflector - Google Patents

Multilayer micro-perforated structure noise elimination flow deflector Download PDF

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Publication number
CN106205588B
CN106205588B CN201610722474.6A CN201610722474A CN106205588B CN 106205588 B CN106205588 B CN 106205588B CN 201610722474 A CN201610722474 A CN 201610722474A CN 106205588 B CN106205588 B CN 106205588B
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perforated
plate
cavity
frameworks
metal micro
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CN106205588A (en
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唐正兵
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Sichuan Sanyuan Environmental Governance Co ltd
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Sichuan Sanyuan Environmental Governance Co ltd
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    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162Selection of materials
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Pipe Accessories (AREA)

Abstract

The invention relates to a multilayer micro-perforated structure noise elimination flow deflector, which consists of a closed cavity consisting of a metal micro-perforated left plate, a metal micro-perforated right plate, a framework sealing plate, a semicircular flow deflector and a pointed flow deflector, wherein a metal micro-perforated middle plate is arranged in the cavity, a left cavity is formed between the metal micro-perforated left plate and the metal micro-perforated middle plate, a right cavity is formed between the metal micro-perforated right plate and the metal micro-perforated middle plate, a plurality of left frameworks which are arranged in parallel are arranged in the left cavity, a plurality of right frameworks which are arranged in parallel are arranged in the right cavity, and the middles of the plurality of left frameworks and the plurality of right frameworks are connected through a supporting plate.

Description

Multilayer micro-perforated structure noise elimination flow deflector
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of aerodynamic noise control, in particular to a multilayer micro-perforated structure noise elimination flow deflector.
[ background of the invention ]
The silencing sheet in the prior art is mostly applied to a ventilation system and has good silencing effect on airflow noise, and the traditional silencing sheet is mostly made of a metal perforated plate serving as a facing material and internally filled with sound absorption materials such as glass fibers. Although the conventional method can function to reduce the noise of the air current, it has disadvantages in that the sound-absorbing material is at risk of failure and the sound-absorbing material escapes.
Therefore, in order to avoid the above technical problems, it is necessary to provide a sound attenuation baffle with an improved structure to overcome the above-mentioned drawbacks in the prior art.
[ summary of the invention ]
In order to overcome the defects in the prior art, the invention aims to provide the sound-deadening flow deflector with the multilayer micro-perforated structure, which has a good sound-deadening effect and does not have the defects of failure risk of a sound-absorbing material and escape of the sound-absorbing material.
In order to achieve the purpose, the invention adopts the following specific technical scheme: multilayer micro-perforated structure noise elimination water conservancy diversion piece comprises a metal micro-perforated left plate, a metal micro-perforated right plate, a skeleton shrouding, a semi-circular water conservancy diversion head and a sharp water conservancy diversion head and constitutes a closed cavity, is equipped with a metal micro-perforated medium plate in the cavity, forms left cavity between metal micro-perforated left plate and the metal micro-perforated medium plate, forms right cavity between metal micro-perforated right plate and the metal micro-perforated medium plate, be equipped with a plurality of parallel arrangement's left skeleton in the cavity of a left side, be equipped with a plurality of parallel arrangement's right skeleton in the cavity of the right side, the middle part of the left skeleton of a plurality of and the right skeleton of a plurality of is all connected through the backup pad.
Furthermore, the left framework and the right framework are arranged in a staggered mode along the length direction of the framework sealing plate.
Furthermore, the lengths of the left framework and the right framework are equal, and the width of the right framework is larger than that of the left framework.
Furthermore, right-angle side bending parts are arranged on two sides of the left framework and the right framework.
Furthermore, the cross section of the pointed flow guide head is triangular.
Furthermore, the cross section of the semicircular flow guide head is arc-shaped.
Compared with the prior art, the invention has the advantages that: the sound absorption and noise reduction device carries out sound absorption and noise reduction through the three layers of micro-perforated plates, and the left cavity and the right cavity formed by the three layers of micro-perforated plates have different intervals, so that the coincidence effect is avoided. The silencing guide vane is not filled with any sound absorption material, can avoid the problem of fiber leakage of the sound absorption material, and can be suitable for places with high cleanliness requirement and other places with special requirements, such as places with ultrahigh temperature, ultralow temperature, high wind pressure and wind speed and the like, for silencing and denoising.
[ description of the drawings ]
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
the present invention will be described in further detail with reference to the accompanying drawings.
[ detailed description ] A
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of ways different from those described herein and similar generalizations can be made by those skilled in the art without departing from the spirit of the invention. The invention is therefore not limited to the specific implementations disclosed below.
Referring to the attached drawings 1 and 2 in the specification, the invention discloses a multilayer micro-perforated structure noise-elimination flow deflector, which is a closed cavity formed by a left metal micro-perforated plate 1, a right metal micro-perforated plate 2, a framework sealing plate 3, a semicircular flow guide head 4 and a pointed flow guide head 5.
Wherein, be equipped with a metal microperforation middle plate 6 in the cavity, form left cavity 7 between metal microperforation left side board 1 and the metal microperforation middle plate 6, form right cavity 8 between metal microperforation right side board 2 and the metal microperforation middle plate 6, be equipped with complex piece parallel arrangement's left skeleton 9 in the cavity of a left side 6, be equipped with complex piece parallel arrangement's right skeleton 10 in the cavity of a right side 8, left skeleton 9 is isometric with the length of right skeleton 10, and the width of right skeleton 10 is greater than the width of left skeleton 9, and left skeleton 9 all is equipped with right angle limit kink 11 with the both sides of right skeleton 10, and the middle part of complex piece left skeleton 9 and complex piece right skeleton 10 all passes through backup pad 12 and connects, left side skeleton 9 and right skeleton 10 all along the length direction staggered arrangement of skeleton shrouding 3, the chamber is to coming the noise effect of making an uproar about through the twice.
It should be noted that the cross section of the pointed flow guide head is triangular.
It should also be noted that the cross section of the semicircular flow guide head is arc-shaped.
However, the foregoing detailed description is exemplary only, and is not intended to limit the scope of the patent, as defined by the claims which follow; any equivalent alterations or modifications made according to the spirit of the disclosure of this patent are intended to be included in the scope of this patent.

Claims (3)

1. Multilayer micro-perforated structure noise elimination water conservancy diversion piece, its characterized in that: a closed cavity is formed by a metal micro-perforated left plate, a metal micro-perforated right plate, a framework sealing plate, a semicircular flow guide head and a pointed flow guide head, a metal micro-perforated middle plate is arranged in the cavity, a left cavity is formed between the metal micro-perforated left plate and the metal micro-perforated middle plate, a right cavity is formed between the metal micro-perforated right plate and the metal micro-perforated middle plate, a plurality of parallel-arranged left frameworks are arranged in the left cavity, the lengths of the left frameworks and the right frameworks are equal, the width of the right framework is larger than that of the left framework, right-angle bending parts are arranged on two sides of the left framework and the right framework, a plurality of parallel-arranged right frameworks are arranged in the right cavity, the middle parts of the plurality of left frameworks and the plurality of right frameworks are connected through supporting plates, and the left frameworks and the right frameworks are arranged in a staggered mode along the length direction of the framework sealing plate.
2. The sound damping baffle of multilayer micro-perforated structure as recited in claim 1, wherein: the cross section of the pointed flow guide head is triangular.
3. The multi-layer micro-perforated structural sound damping baffle of claim 1, wherein: the cross section of the semicircular flow guide head is arc-shaped.
CN201610722474.6A 2016-08-26 2016-08-26 Multilayer micro-perforated structure noise elimination flow deflector Active CN106205588B (en)

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CN201610722474.6A CN106205588B (en) 2016-08-26 2016-08-26 Multilayer micro-perforated structure noise elimination flow deflector

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CN106205588B true CN106205588B (en) 2022-10-28

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109505808B (en) * 2018-12-25 2024-02-20 广东美的白色家电技术创新中心有限公司 Fan silencer and fan silencing system

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US4056161A (en) * 1975-10-30 1977-11-01 Tillotson Corporation Sound attenuation material
JPH07217423A (en) * 1994-01-31 1995-08-15 Toshiba Corp Exhaust silencer
CN2295050Y (en) * 1996-12-12 1998-10-21 武汉鼓风机厂 Sheet-type micro-porous silencer
CN1644802A (en) * 2005-01-20 2005-07-27 上海交通大学 Double-face sound-absorbing contacting oral cavity sound shield without cotton
CN201317983Y (en) * 2008-12-03 2009-09-30 上海声望声学工程有限公司 Acoustic-wedge
CN201369165Y (en) * 2009-02-04 2009-12-23 纪洪鹏 Combined sound insulation and absorption and noise reduction plate
CN201599917U (en) * 2009-09-23 2010-10-06 北京绿创声学工程股份有限公司 Sound eliminator of large-sized subway ventilating system
CN101876264A (en) * 2010-03-30 2010-11-03 宁波大叶园林设备有限公司 There are five chambeies to contain the silencing apparatus of wedge
CN102296715A (en) * 2011-08-31 2011-12-28 周国柱 Sound insulation structure with perforated plate
CN102522079A (en) * 2012-01-10 2012-06-27 厦门嘉达环保建造工程有限公司 Impedance compound right-angled muffler
CN102842303A (en) * 2011-06-23 2012-12-26 中国电力科学研究院 Microporous-fiber composite sound absorbing board
CN103670602A (en) * 2013-11-28 2014-03-26 武汉理工大学 Three-layer series micro-perforated pipe muffler
CN203701317U (en) * 2013-12-13 2014-07-09 深圳市科德声学技术有限公司 Micro-through-hole double-cavity sound-absorbing board
CN203701886U (en) * 2013-12-13 2014-07-09 深圳市科德声学技术有限公司 Micro-through-hole double-cavity silencing louvers
CN204060936U (en) * 2014-07-14 2014-12-31 佰思电力设备(天津)有限公司 Two plate inclined silencing apparatus
CN104412020A (en) * 2012-06-29 2015-03-11 挪威国家石油公司 Flexible pipe carcass for controlling flow induced vibration in a riser
CN104616649A (en) * 2014-12-05 2015-05-13 城林环保技术(上海)有限公司 PVC (Polyvinyl Chloride) corrosion-resistant sound-absorbing silencing plate
CN204373184U (en) * 2014-12-26 2015-06-03 福建朗宇环保科技有限公司 A kind of silencer for ventilating system
CN105222320A (en) * 2015-11-04 2016-01-06 上海声望声学科技股份有限公司 Anechoic sheet
CN205920756U (en) * 2016-08-26 2017-02-01 四川三元环境治理股份有限公司 Multilayer micropunch structure noise elimination water conservancy diversion piece

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201473893U (en) * 2009-08-07 2010-05-19 四川三元环保工程有限公司 Modularization sound barrier with high performance
CN101625146A (en) * 2009-08-12 2010-01-13 四川三元环保工程有限公司 Ventilation silencer
CN202630348U (en) * 2012-06-18 2012-12-26 四川三元环保工程有限公司 Matrix-type ventilation silencer
CN204834033U (en) * 2015-08-11 2015-12-02 四川三元环境治理股份有限公司 No filler shell and tube silencer

Patent Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056161A (en) * 1975-10-30 1977-11-01 Tillotson Corporation Sound attenuation material
JPH07217423A (en) * 1994-01-31 1995-08-15 Toshiba Corp Exhaust silencer
CN2295050Y (en) * 1996-12-12 1998-10-21 武汉鼓风机厂 Sheet-type micro-porous silencer
CN1644802A (en) * 2005-01-20 2005-07-27 上海交通大学 Double-face sound-absorbing contacting oral cavity sound shield without cotton
CN201317983Y (en) * 2008-12-03 2009-09-30 上海声望声学工程有限公司 Acoustic-wedge
CN201369165Y (en) * 2009-02-04 2009-12-23 纪洪鹏 Combined sound insulation and absorption and noise reduction plate
CN201599917U (en) * 2009-09-23 2010-10-06 北京绿创声学工程股份有限公司 Sound eliminator of large-sized subway ventilating system
CN101876264A (en) * 2010-03-30 2010-11-03 宁波大叶园林设备有限公司 There are five chambeies to contain the silencing apparatus of wedge
CN102842303A (en) * 2011-06-23 2012-12-26 中国电力科学研究院 Microporous-fiber composite sound absorbing board
CN102296715A (en) * 2011-08-31 2011-12-28 周国柱 Sound insulation structure with perforated plate
CN102522079A (en) * 2012-01-10 2012-06-27 厦门嘉达环保建造工程有限公司 Impedance compound right-angled muffler
CN104412020A (en) * 2012-06-29 2015-03-11 挪威国家石油公司 Flexible pipe carcass for controlling flow induced vibration in a riser
CN103670602A (en) * 2013-11-28 2014-03-26 武汉理工大学 Three-layer series micro-perforated pipe muffler
CN203701317U (en) * 2013-12-13 2014-07-09 深圳市科德声学技术有限公司 Micro-through-hole double-cavity sound-absorbing board
CN203701886U (en) * 2013-12-13 2014-07-09 深圳市科德声学技术有限公司 Micro-through-hole double-cavity silencing louvers
CN204060936U (en) * 2014-07-14 2014-12-31 佰思电力设备(天津)有限公司 Two plate inclined silencing apparatus
CN104616649A (en) * 2014-12-05 2015-05-13 城林环保技术(上海)有限公司 PVC (Polyvinyl Chloride) corrosion-resistant sound-absorbing silencing plate
CN204373184U (en) * 2014-12-26 2015-06-03 福建朗宇环保科技有限公司 A kind of silencer for ventilating system
CN105222320A (en) * 2015-11-04 2016-01-06 上海声望声学科技股份有限公司 Anechoic sheet
CN205920756U (en) * 2016-08-26 2017-02-01 四川三元环境治理股份有限公司 Multilayer micropunch structure noise elimination water conservancy diversion piece

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Denomination of invention: Muffler deflector with multilayer micro perforated structure

Effective date of registration: 20221228

Granted publication date: 20221028

Pledgee: Chengdu Rural Commercial Bank Co.,Ltd. Guixi Sub branch

Pledgor: SICHUAN SANYUAN ENVIRONMENTAL GOVERNANCE Co.,Ltd.

Registration number: Y2022510000336

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Granted publication date: 20221028

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PE01 Entry into force of the registration of the contract for pledge of patent right
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Denomination of invention: Multi layer micro perforated structure sound-absorbing guide vanes

Granted publication date: 20221028

Pledgee: Chengdu Rural Commercial Bank Co.,Ltd. Commercial City Branch

Pledgor: SICHUAN SANYUAN ENVIRONMENTAL GOVERNANCE Co.,Ltd.

Registration number: Y2024980008189