CN101338846B - Flexible silencer - Google Patents
Flexible silencer Download PDFInfo
- Publication number
- CN101338846B CN101338846B CN2008101272008A CN200810127200A CN101338846B CN 101338846 B CN101338846 B CN 101338846B CN 2008101272008 A CN2008101272008 A CN 2008101272008A CN 200810127200 A CN200810127200 A CN 200810127200A CN 101338846 B CN101338846 B CN 101338846B
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- CN
- China
- Prior art keywords
- hose
- silencing
- sound
- composite
- isolation layer
- 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.)
- Expired - Fee Related
Links
- 230000003584 silencer Effects 0.000 title abstract description 13
- 230000030279 gene silencing Effects 0.000 claims abstract description 103
- 239000002131 composite material Substances 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000002955 isolation Methods 0.000 claims abstract description 18
- 238000010521 absorption reaction Methods 0.000 claims description 16
- 239000002985 plastic film Substances 0.000 claims description 14
- 229920006255 plastic film Polymers 0.000 claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 12
- 239000011888 foil Substances 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 8
- 239000004800 polyvinyl chloride Substances 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000011491 glass wool Substances 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 230000002745 absorbent Effects 0.000 abstract 6
- 239000002250 absorbent Substances 0.000 abstract 6
- 238000009423 ventilation Methods 0.000 description 5
- 238000013329 compounding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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- Pipe Accessories (AREA)
Abstract
The invention discloses a flexible silencer which comprises a termination flange, a silencing internal hose, a silencing external hose, an isolation layer, a sound absorbent lining and a composite hose. The flexible silencer is characterized in that: the silencing internal hose is densely equipped with a plurality of silencing holes, the external part of the silencing internal hose is covered with the external silencing hose; the silencing external hose is densely equipped with a plurality of silencing holes, a sound absorbent cavity is positioned between the silencing internal hose and the silencing external hose, a plurality of fixing rings are arranged in the sound absorbent cavity in interval, the external part of the silencing external hose is equipped with the isolation layer, the external part of the isolation layer is equipped with the sound absorbent lining, the external part of the sound absorbent lining is covered with the composite hose, and the silencing internal hose and the internal-circular connector of the termination flange are fixedly connected; the silencing external hose, the composite hose and the connector of the external-circular turned-edge connector of the termination flange are fixedly connected mutually. The flexible silencer is made of the flexible material which can be bent, the sound absorbent material and the reasonable silence structure, the invention can be configured according to the environment condition, and has the advantages of low cost, good silence effect and convenient installation.
Description
Technical Field
The invention relates to a silencing device, in particular to a flexible silencer for eliminating airflow noise and vibration generated during gas conveying.
Background
In industrial production and life, a fan or similar power device and a pipeline are often needed for gas delivery, such as ventilation systems in industrial and mining enterprises, air conditioning systems controlled by building centers, and the like, and because the requirements for ventilation volume and wind speed in various environments in the system are different, the sound decibel of wind noise and vibration near the tail section of the system, namely an air outlet, is large, and normal production and life of people are influenced. In order to eliminate wind noise and vibration generated by the system near the air outlet; technicians can install a silencer on the pipeline near the air outlet to eliminate or weaken the noise of wind noise and vibration. A silencer which is generally used is installed in a ventilation pipeline and is arranged near an air outlet; and the structure of silencer all is that the outside is rigid structure, and the inside is filled amortization material, and in order to reach the effect of ideal amortization, the volume of silencer is great, and can not buckle. The common ventilation system is arranged inside the ceiling, wherein the space is small, various fire-fighting, strong and weak electric pipelines are crossed vertically and horizontally, and the installation of the existing silencer is very difficult, so that the construction is greatly inconvenient, and the quality of the whole project is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a flexible muffler device which is low in cost, good in muffling effect and convenient to install.
The technical scheme of the invention is as follows:
the utility model provides a flexible silencer, hose, the outer hose of amortization, isolation layer, sound absorbing layer, compound hose in interface flange, amortization, its characterized in that: the silencing inner hose is densely distributed with silencing holes; the outer silencing hose is sleeved outside the silencing inner hose; the silencing outer hose is densely provided with silencing holes; a sound-absorbing cavity is arranged between the sound-absorbing inner hose and the sound-absorbing outer hose; fixing rings are arranged in the sound-absorbing cavity at intervals; an isolation layer is arranged outside the silencing outer hose; the sound absorption layer is arranged outside the isolation layer; a composite hose is sleeved outside the sound absorption layer; the silencing inner hose is fixedly connected with the inner circle interface of the interface flange; the silencing outer hose and the composite hose are fixedly connected with the outer circle curled edge connector of the connector flange.
The silencing inner hose or the silencing outer hose is made of one or more of the following materials: aluminum foil, PVC, plastic coated cloth or other flexible material; and is compounded with the spiral steel wire.
The silencing inner hose or the silencing outer hose is made of thin metal materials, and comprises: sheet iron, sheet aluminum and stainless steel; and is formed by winding and seaming in a corrugated shape.
The composite hose is made of one or more of the following materials: aluminum foil, PVC, plastic coated cloth or other flexible material; and is compounded with the spiral steel wire.
The composite hose is compounded by selecting one or more than one of the following materials, and comprises: aluminum foil, PVC, plastic coated cloth, or other flexible material.
The caliber of the silencing inner hose is variable under the condition that the caliber of the silencing outer hose is not changed.
The shape of the silencing inner or outer hose can be round, rectangular, celestial round, conical or other geometric shapes.
The sound absorption layer is composed of one or more of glass wool, aluminum silicate wool, rubber and plastic or other sound absorption materials.
The isolating layer is a plastic film or other flexible films.
The silencing inner hose is a silencing inner hose bundle, the end of the tube bundle is connected with the connecting interface on the interface flange, and the tube bundle is spirally arranged inside the composite hose; an isolating layer plastic film and a sound absorbing layer are sequentially arranged between the silencing inner hose bundle and the composite hose.
The invention has the advantages that: the invention can be arranged according to the environment condition, and has low cost, good noise elimination effect and convenient installation.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 is a schematic view of the structure of the composite hose of the present invention.
Fig. 3 is a schematic view of the structure of the outer noise-reduction hose of the present invention.
Fig. 4 is a schematic front view of a flange configuration of a silencer tube bundle of the present invention.
FIG. 5 is a side schematic view of a flange configuration of a muffler bundle of the present invention.
FIG. 6 is a schematic diagram of the construction of a muffler bundle of the present invention.
FIG. 7 is a schematic view of the spiral arrangement of the muffler bundle of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings and the embodiments.
As shown in fig. 1 to 7, the present invention is a muffler device provided in a gas delivery pipe, comprising: the pipe joint comprises a joint flange 11, a silencing inner hose 1, a silencing outer hose 2, a plastic film isolation layer 3, a sound absorption layer 4 and a composite hose 5. Wherein, the silencing holes 7 are densely distributed on the silencing inner hose 1; the outer part of the silencing inner hose 1 is sleeved with a silencing outer hose 2; the silencing holes 8 are densely distributed on the silencing outer hose 2; a sound-absorbing cavity 9 is arranged between the noise-absorbing inner hose 1 and the noise-absorbing outer hose 2; fixing rings 10 are arranged in the sound-absorbing cavity 9 at intervals; the outer part of the noise reduction outer hose 2 is provided with a plastic film isolation layer 3; a sound absorption layer 4 is arranged outside the plastic film isolation layer 3; the outside of the sound absorption layer 4 is sleeved with a composite hose 5; the composite hose 5 is formed by compounding aluminum foil, PVC and spiral steel wires. The silencing inner hose 1 is fixedly connected with an inner circle interface 12 of an interface flange 11; the silencing outer hose 2 and the composite hose 5 are fixedly connected with an excircle curling joint 13 of the joint flange 11.
The silencing inner hose 1 and the silencing outer hose 2 are both formed by compounding one or more of aluminum foil, PVC or other flexible materials with spiral steel wires.
The composite hose 5 is formed by compounding one or more of aluminum foil, PVC or other flexible materials and spiral steel wires.
The isolating layer 3 is a plastic film or other flexible films.
The sound absorption layer 4 is composed of one or more of glass wool, aluminum silicate wool, rubber and plastic or other sound absorption materials.
The silencing inner hose can also be a silencing inner hose bundle 13, the port of the tube bundle 13 is connected with a connecting interface 15 on an interface flange 14, and the tube bundle 13 is spirally arranged inside the composite hose 5; an isolating layer plastic film 3 and a sound absorbing layer 4 are sequentially arranged between the silencing inner hose bundle 13 and the composite hose 5.
The invention is implemented as follows:
example 1:
a flexible muffler, the two ports are interface flanges 11, there are silencing inner hoses 1 in the middle part, there are silencing holes 7 densely distributed on silencing inner hose 1, the outside of silencing inner hose 1 is fitted with the outer hose 2 of sound attenuation; the outer silencing hose 2 is densely provided with silencing holes 8. A sound-absorbing cavity 9 is arranged between the inner silencing hose 1 and the outer silencing hose 2, and fixing rings 10 are arranged in the sound-absorbing cavity 9 at intervals and used for ensuring that the sound-absorbing cavity 9 still plays a role in silencing when the bending device is bent. The outside of the outer silencing hose 2 is provided with an isolating layer plastic film 3, the isolating layer plastic film 3 is used for preventing the tiny fibers of the sound absorbing layer 4 from entering the air channel through the silencing holes 8 of the outer silencing hose 2, the outside of the isolating layer plastic film 3 is provided with the sound absorbing layer 4, and the outside of the isolating layer plastic film is further sleeved with a composite hose 5.
In the process of gas conveying, gas passes through the silencing inner hose 1, and vibration and noise generated by the gas pass through the silencing holes 7 of the silencing inner hose 1 for first silencing; a sound-absorbing cavity 9 is arranged between the silencing inner hose 1 and the silencing outer sleeve 2 and can carry out secondary silencing on vibration and noise, a silencing hole 8 is formed in the silencing outer hose 2 and can also carry out tertiary silencing on the silencing outer hose, and a fourth silencing is carried out on the isolation layer 3 and the sound-absorbing layer 4 outside the silencing outer hose 2; the composite hose 5 effectively restrains noise and vibration in the ventilation channel, and the effect of isolating noise is achieved.
Example 2:
in example 1, the caliber of the silencing inner hose 1 is a fixed value, while in example 2, the caliber of the silencing inner hose 1 is variable under the condition that the caliber of the silencing outer sleeve 2 is not changed, namely: the inner silencing hose 1 has a section with a diameter larger or smaller than the inner diameter of the interface flange 11, i.e. 12, but smaller than the outer silencing hose 2. Therefore, a variable diameter area can be formed in the gas flowing channel, so that the gas conveying path is changed, the noise and vibration of the gas are reflected in the variable diameter area, and the better sound eliminating effect is achieved.
Example 3:
in the above-described embodiment, the sound-deadening inner hose 1 is disposed inside the sound-deadening outer hose 2 in a single form. In the present embodiment, the silencing inner hose is in the form of a silencing inner hose bundle 13, which is disposed inside the composite hose 5.
As shown in fig. 4-7, the present embodiment relates to an interface flange 14 having a plurality of interfaces 15 for connecting with the ports of the muffling inner hose bundle 13; the silencing inner hose bundle 13 is spirally arranged inside the composite hose 5, as shown in fig. 6; an isolating layer plastic film 3 and a sound absorbing layer 4 are sequentially arranged between the silencing inner hose bundle 13 and the composite hose 5; each silencing inner hose in the silencing inner hose bundle 13 is fixed by a hoop 16 when being connected with an upper joint 15 of the interface flange 14, and the composite hose 5 is connected with the outer circle of the interface flange 14.
Claims (6)
1. A flexible muffler comprising: hose, outer hose of amortization, isolation layer, sound absorbing layer, compound hose in interface flange, the amortization, its characterized in that: the silencing inner hose is densely distributed with silencing holes; the outer part of the silencing inner hose is sleeved with a silencing outer hose; the silencing outer hose is densely provided with silencing holes; a sound-absorbing cavity is arranged between the sound-absorbing inner hose and the sound-absorbing outer hose; fixing rings are arranged in the sound-absorbing cavity at intervals; an isolation layer is arranged outside the silencing outer hose; the outside of the isolation layer is a sound absorption layer, and a composite hose is sleeved outside the sound absorption layer; the silencing inner hose is fixedly connected with the inner circle interface of the interface flange; the noise reduction outer hose and the composite hose are fixedly connected with an excircle curling interface of the interface flange; wherein,
the silencing inner hose or the silencing outer hose is made of one or more of the following flexible materials, and comprises: aluminum foil, PVC or plastic coated cloth; and is compounded with the spiral steel wire; the composite hose is compounded by one or more of the following flexible materials, and comprises: aluminum foil, PVC or plastic coated cloth; the isolation layer is a plastic film.
2. The flexible muffler of claim 1 wherein: the composite hose is made of one or more of the following materials: aluminum foil, PVC or plastic coated cloth; and is compounded with the spiral steel wire.
3. The flexible muffler according to claim 1 or 2, wherein: the caliber of the silencing inner hose is variable under the condition that the caliber of the silencing outer hose is not changed.
4. The flexible muffler of claim 1 wherein: the silencing inner hose or outer hose is in a shape of comprising: circular, rectangular or conical.
5. The flexible muffler of claim 1 wherein: the sound absorption layer is composed of one or more of the following sound absorption materials, and comprises: glass wool, aluminum silicate wool or rubber plastic.
6. A flexible muffler comprising: interface flange, amortization inner hose bundle, isolation layer, sound absorbing layer, compound hose, its characterized in that: the port of the silencing inner hose bundle is connected with a connecting interface on the interface flange; the silencing inner hose bundle is spirally arranged inside the composite hose; an isolation layer and a sound absorption layer are sequentially arranged between the silencing inner hose bundle and the composite hose; silencing holes are densely distributed on the silencing inner hose bundle; an isolating layer is arranged outside the silencing inner hose bundle; the outside of the isolation layer is a sound absorption layer, and a composite hose is sleeved outside the sound absorption layer; the composite hose is connected with the outer circle of the interface flange; wherein,
the noise-reduction inner hose is made of one or more of the following flexible materials, and comprises: aluminum foil, PVC or plastic coated cloth; and is compounded with the spiral steel wire; the composite hose is compounded by one or more of the following flexible materials, and comprises: aluminum foil, PVC or plastic coated cloth; the isolation layer is a plastic film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101272008A CN101338846B (en) | 2008-06-25 | 2008-06-25 | Flexible silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101272008A CN101338846B (en) | 2008-06-25 | 2008-06-25 | Flexible silencer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101338846A CN101338846A (en) | 2009-01-07 |
| CN101338846B true CN101338846B (en) | 2010-12-22 |
Family
ID=40212980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101272008A Expired - Fee Related CN101338846B (en) | 2008-06-25 | 2008-06-25 | Flexible silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101338846B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470838A (en) * | 2012-06-05 | 2013-12-25 | 濮阳市信宇石油机械化工有限公司 | Simple pressure reducing valve |
| CN103711984B (en) * | 2012-09-28 | 2018-04-13 | 费希尔控制国际公司 | Simplified modal attenuator |
| CN102940943A (en) * | 2012-10-29 | 2013-02-27 | 大连理工大学 | Wave-absorption vibration-reduction silk screen fire-resistance explosion-suppression apparatus |
| CN102940942A (en) * | 2012-10-29 | 2013-02-27 | 大连理工大学 | Wave-absorption shock-absorption corrugated fire-resistance explosion-suppression apparatus |
| CN103660417A (en) * | 2013-12-20 | 2014-03-26 | 吴江市圆明印花厂 | Two-layer composite sound insulation fabric |
| CN105840554A (en) * | 2016-03-29 | 2016-08-10 | 南京迪威尔高端制造股份有限公司 | Silent noise reducing device |
| CN107084295A (en) * | 2017-06-13 | 2017-08-22 | 长沙新奥燃气有限公司 | A kind of noise reducing plate at tube bends |
| CN108953825B (en) * | 2018-08-02 | 2020-05-15 | 哈尔滨工程大学 | Low-resistance self-adaptive suction flow control device and method with noise elimination function |
| CN109442105A (en) * | 2018-12-18 | 2019-03-08 | 南京磁谷科技有限公司 | A kind of hose assembly with silencing function |
| CN109681716A (en) * | 2018-12-29 | 2019-04-26 | 郑州宇晟汽车产品科技开发有限公司 | A kind of auto heater sqouynd absorption lowering noise pipe |
| CN109817195B (en) * | 2019-01-07 | 2020-09-18 | 珠海市广源信科技有限公司 | Method for filling silencer cavity |
| CN112538203B (en) * | 2020-12-07 | 2022-12-20 | 公元管道(天津)有限公司 | Polyolefin noise reduction type drain pipe and preparation method thereof |
| CN113417828B (en) * | 2021-06-18 | 2023-03-31 | 南京润楠医疗电子研究院有限公司 | Pneumatic noise elimination device |
-
2008
- 2008-06-25 CN CN2008101272008A patent/CN101338846B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101338846A (en) | 2009-01-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20190625 |