CN103104776A - Flexible metal silencer - Google Patents
Flexible metal silencer Download PDFInfo
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- CN103104776A CN103104776A CN 201110360558 CN201110360558A CN103104776A CN 103104776 A CN103104776 A CN 103104776A CN 201110360558 CN201110360558 CN 201110360558 CN 201110360558 A CN201110360558 A CN 201110360558A CN 103104776 A CN103104776 A CN 103104776A
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- metal
- silencing
- flexible
- flexible tube
- noise reduction
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Abstract
A flexible metal silencer comprises a connector flange, a metal inner silencing flexible pipe, a metal outer silencing flexible pipe, damping materials and a metal protective casing pipe. The flexible metal silencer is characterized in that silencing holes are formed in the metal inner silencing flexible pipe, and the outer silencing flexible pipe is installed outside the inner silencing flexible pipe in a sleeved mode. Silencing holes are formed in the outer silencing flexible pipe. A silencing hollow cavity is formed between the inner silencing flexible pipe and the outer silencing flexible pipe. Fixing rings are arranged in the silencing hollow cavity at intervals. The damping materials are coated outside the outer silencing flexible pipe. A metal outer flexible pipe is sleeved outside the damping materials. The inner silencing flexible pipe is fixedly connected with an inner circle connector of the connector flange. The outer silencing flexible pipe and the metal outer flexible pipe are fixedly connected with an edge curling connector of the outer circle of the connector flange. Due to the fact that the flexible metal silencer is formed by a flexible metal buckling way, the damping materials and a reasonable silencing structure in a combined mode, the flexible metal silencer can be set according to environmental conditions, and is flexible, good in fireproof performance, low in cost, good in silencing effect and convenient to install.
Description
Technical field
The present invention relates to silencer, refer to especially a kind of for eliminating the pneumatic noise that produces when gas is carried and the flexible metal silencing apparatus of vibrations.
Background technique
In industrial production and life, usually needing to utilize pump or similar power plant and pipeline to carry out gas carries, air-conditioning system of the ventilation system in middle industrial and mining enterprise, building center-control etc. for example, owing to requiring different to the ventilation in each environment, wind speed in system, so latter end in system, be that near the sound decibel number that exhaust outlet, wind is made an uproar, shaken is very large, affected people and produced normally, live.Make an uproar, shake in order to eliminate the wind that said system produces near exhaust outlet; The technician can install baffler near the pipeline exhaust outlet, the sound that wind is made an uproar, shaken is eliminated or weakened.Normally used silencing apparatus is mounted in ventilation duct, is arranged near exhaust outlet; Present silencing apparatus has metal silencing apparatus and the nonmetal flexible silencing apparatus of rigidity, and the structure of traditional metal silencing apparatus is the rigidity structure, the inner quieter material of filling, and in order to reach the effect of desirable noise reduction, the volume of baffler is larger, and flexible not.and ventilation system commonly used is arranged on ceiling inside, wherein the space is less, various fire-fightings, by force, the pipeline of light current intersects in length and breadth, the rigidity silencing apparatus that existing Structural Hardware is installed is just very difficult, cause the very big inconvenience of construction, affected the quality of integrated engineering, although and present nonmetal flexible silencing apparatus is easy for installation, but fireproof performance does not reach the regulation of not firing at all, its material all adopts organic material and other material to carry out produced with combination and forms, preventing fires, combustion performance is the highest only can reach the B1 level, and there is Compulsory Feature in country for the fireproof performance of structural material, mandatory provision in GB50045-95 " Code for fire protection design of high rise buildings " in the 856th: ventilate, the pipeline of air-conditioning system etc., should adopt noncombustible material to make.In corresponding ventilation system, all material also should reach the A level and not fire, although the rigidity silencing apparatus fireproof performance of present domestic Structural Hardware can reach the A level fully and not fire, but not flexible, installation inconvenience, although nonmetal flexible silencing apparatus flexible, only can reach the B1 level but fireproof performance is the highest, do not reach the mandatory provisions that the A level is not fired at all, if so just bring great disaster hidden-trouble to building and the nonmetal flexible silencing apparatus has been installed in engineering, affected the fireproof performance of integrated engineering.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art and a kind of silencer is provided, having changed the not characteristic of flexible of traditional metal silencing apparatus, referring to especially a kind of for eliminating the hot-tempered sound of air-flow that produces when gas is carried and the flexible metal silencing apparatus of vibrations.
Technological scheme of the present invention is: a kind of flexible metal silencing apparatus, include Sound eliminating soft pipe in flange, metal, the outer Sound eliminating soft pipe of metal, sound absorbing material, metal coating sleeve pipe, it is characterized in that: metal noise reduction inner flexible tube is provided with the noise reduction hole, and the outer cover of interior Sound eliminating soft pipe is equipped with outer Sound eliminating soft pipe; Outer Sound eliminating soft pipe is provided with the noise reduction hole, be provided with the noise reduction cavity between inside and outside Sound eliminating soft pipe, be interval with retaining ring in the noise reduction cavity, outer metal Sound eliminating soft pipe outside is coated with sound absorbing material, the outer cover of sound absorbing material has the metal outer flexible tube, the inner circle interface Joint of interior Sound eliminating soft pipe and flange; The cylindrical crimping interface Joint of outer Sound eliminating soft pipe, metal outer flexible tube and flange.
Soft outside described noise reduction metal inner flexible tube, noise reduction metal, metal outer flexible tube is steel band or other metallic material fastening forms.
Described noise reduction metal outer flexible tube is under the constant condition of its bore, and the bore of noise reduction metal inner flexible tube is variable.
Described noise reduction metal outer flexible tube shape can be circle, square type, old name for the Arabian countries in the Middle East's ground circle, taper or other geometrical shape.
Described sound-absorption layer, one or more form by glass wool, aluminium silicate wool or other sound absorbing materials.
The invention has the advantages that: because the tie insert method that adopts flexible and sound absorbing material and rational noise-reducing structure combine, the present invention can be according to the environmental conditions setting, and fireproof performance is good, cost is low, and soundproof effect is good, and is easy for installation.
Description of drawings
Fig. 1 is sectional drawing of the present invention;
Fig. 2 is metal outer flexible tube structural representation of the present invention;
Fig. 3 is noise reduction metal inner and outer hose construction schematic diagram of the present invention;
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
The present invention is arranged on the silencer in gas transmission pipeline, its structure includes following member: flange 1, metal outer flexible tube 2, sound-absorption layer 3, noise reduction metal outer flexible tube 4, noise reduction metal inner flexible tube 5, bloop 6, retaining ring 7, sound-absorbing cavity 8, its structure characteristic is: be densely covered with noise reduction hole 6 on noise reduction metal inner flexible tube 5, the outer cover of noise reduction metal inner flexible tube 5 is equipped with noise reduction metal outer flexible tube 4; Be densely covered with noise reduction hole 6 on noise reduction metal outer flexible tube 4, be provided with sound-absorbing cavity 8 between noise reduction metal inner and outer flexible pipe 5,4, be interval with retaining ring 7 in sound-absorbing cavity 8, noise reduction metal outer flexible tube 4 outsides are provided with sound-absorption layer 3, the outer cover of sound-absorption layer 3 has metal outer flexible tube 2, inner circle interface 9 Joints of noise reduction metal inner and outer flexible pipe and flange 1; Cylindrical crimping interface 10 Joints of metal outer flexible tube 2 and flange 1.
Noise reduction metal inner flexible tube 5 described in the present invention, noise reduction metal outer flexible tube 4 fasten by the metallic steel band with metal outer flexible tube 2 and form.
The present invention implements like this:
Embodiment 1, a kind of flexible metal silencing apparatus, and two-port is flange 1, and the inside of intermediate portion is provided with noise reduction metal inner flexible tube 5, is densely covered with noise reduction hole 6 on noise reduction metal inner flexible tube 5, and the outer cover of noise reduction metal inner flexible tube 5 is equipped with noise reduction metal outer flexible tube 4; Be densely covered with noise reduction hole 6 on noise reduction metal outer flexible tube 4.Be provided with sound-absorbing cavity 8 between noise reduction metal inner flexible tube 5 and noise reduction metal outer flexible tube 4, in sound-absorbing cavity 8, the interval is provided with retaining ring 7, is used for guaranteeing that as the present invention sound-absorbing cavity 8 still plays the effect of noise elimination when bending is implemented.The outside of noise reduction metal outer flexible tube 4 is provided with sound-absorption layer 3, and its outside is also overlapped metal outer flexible tube 2.
In the process that gas is carried, gas passes through from noise reduction metal inner flexible tube 5 of the present utility model, and the vibrations of its generation, noise are done to eliminate the noise for the first time by the noise reduction hole 6 of noise reduction metal inner flexible tube 5; And be provided with sound-absorbing cavity 8 between noise reduction metal inner flexible tube 5 and noise reduction metal outer flexible tube 4, can eliminate the noise for the second time to vibrations, noise, noise reduction outer flexible tube 4 is provided with noise reduction hole 6 and again it is eliminated the noise for the third time, and the sound-absorption layer 3 of the outside of noise reduction outer flexible tube 4 has carried out the 4th time to it and eliminated the noise; And the flexible metal outer flexible tube has also carried out effective inhibition to the noise in vent passages and vibrations, has reached the effect of isolated noise.
Embodiment 2: in embodiment 1, the bore of noise reduction metal inner flexible tube 5 is fixed numbers, and in embodiment 2, under the constant condition of noise reduction metal outer flexible tube 4 bores, the bore of noise reduction metal inner flexible tube 5 is variable, that is: noise reduction metal inner flexible tube 5 in the present embodiment, wherein the bore of a section is greater than or less than the inner circle interface bore of flange 1, but condition is the bore that is less than noise reduction outer flexible tube 4.So just can form one section reducing zone in the passage of gas flow of the present utility model, the gas transport way is changed, cause its noise and vibrations in this section reducing zone, the variation of reflection to occur, thereby reach better soundproof effect.
Claims (7)
1. flexible metal silencing apparatus, a kind of flexible metal silencing apparatus, include Sound eliminating soft pipe in flange, metal, the outer Sound eliminating soft pipe of metal, sound absorbing material, metal coating sleeve pipe, it is characterized in that: metal noise reduction inner flexible tube is provided with the noise reduction hole, and the outer cover of interior Sound eliminating soft pipe is equipped with outer Sound eliminating soft pipe; Outer Sound eliminating soft pipe is provided with the noise reduction hole, be provided with the noise reduction cavity between inside and outside Sound eliminating soft pipe, be interval with retaining ring in the noise reduction cavity, outer metal Sound eliminating soft pipe outside is coated with sound absorbing material, the outer cover of sound absorbing material has the metal outer flexible tube, the inner circle interface Joint of interior Sound eliminating soft pipe and flange; The cylindrical crimping interface Joint of outer Sound eliminating soft pipe, metal outer flexible tube and flange.
2. a kind of flexible metal according to claim 1 silencing apparatus is characterized in that described metal noise elimination inner flexible tube does not fire metal spiral by fire prevention A level and fastens and form.
3. a kind of flexible metal according to claim 1 silencing apparatus is characterized in that described metal noise elimination outer flexible tube does not fire metal spiral by fire prevention A level and fastens and form.
4. a kind of flexible metal according to claim 1 silencing apparatus is characterized in that described metal outer flexible tube does not fire metal spiral by fire prevention A level and fastens and form.
5. a kind of flexible metal according to claim 1 silencing apparatus is characterized in that described outside flexible metal outer flexible tube under the constant condition of its bore, and the bore of noise reduction inner flexible tube is variable.
6. a kind of flexible metal according to claim 1 silencing apparatus is characterized in that described metal outer flexible tube shape can be that circle, square type, old name for the Arabian countries in the Middle East ground are circular, taper or other geometrical shape.
7. a kind of flexible metal according to claim 1 silencing apparatus, is characterized in that described sound-absorption layer, and one or more form by glass wool, polyester fibre or other sound absorbing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110360558 CN103104776A (en) | 2011-11-15 | 2011-11-15 | Flexible metal silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110360558 CN103104776A (en) | 2011-11-15 | 2011-11-15 | Flexible metal silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103104776A true CN103104776A (en) | 2013-05-15 |
Family
ID=48312862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110360558 Pending CN103104776A (en) | 2011-11-15 | 2011-11-15 | Flexible metal silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103104776A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111081211A (en) * | 2019-12-27 | 2020-04-28 | 福州大学 | Silencer with high-temperature-resistant metal damping sandwich structure and working method thereof |
-
2011
- 2011-11-15 CN CN 201110360558 patent/CN103104776A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111081211A (en) * | 2019-12-27 | 2020-04-28 | 福州大学 | Silencer with high-temperature-resistant metal damping sandwich structure and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Shanghai Senfengte Ventilation Equipment Co., Ltd. Document name: Notification of Publication of the Application for Invention |
|
| DD01 | Delivery of document by public notice |
Addressee: Shanghai Senfengte Ventilation Equipment Co., Ltd. Document name: Notification of before Expiration of Request of Examination as to Substance |
|
| DD01 | Delivery of document by public notice |
Addressee: Shanghai Senfengte Ventilation Equipment Co., Ltd. Document name: Notification that Application Deemed to be Withdrawn |
|
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130515 |