CN2706651Y - Constrained damping structure vibration-damping noise-reducing metal bellows - Google Patents
Constrained damping structure vibration-damping noise-reducing metal bellows Download PDFInfo
- Publication number
- CN2706651Y CN2706651Y CN 200420011025 CN200420011025U CN2706651Y CN 2706651 Y CN2706651 Y CN 2706651Y CN 200420011025 CN200420011025 CN 200420011025 CN 200420011025 U CN200420011025 U CN 200420011025U CN 2706651 Y CN2706651 Y CN 2706651Y
- Authority
- CN
- China
- Prior art keywords
- damping
- metal
- corrugated tube
- vibration
- flexible element
- 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 - Lifetime
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- Diaphragms And Bellows (AREA)
Abstract
The utility model provides a constrained damping structure vibration-damping noise-reducing metal corrugated tube, comprising the flexible element of the corrugated tube and a flange (3) connected with the flexible element of the corrugated tube. The flexible element of the metal corrugated tube is composed of a plurality of thin-wall metal material layers (1), and high damping adhering and elastic materials (2) firmly adhered together with an inner and an outer metal layer are adhered and clamped between each adjacent thin-wall metal material layers (1). The metal corrugated tube further raises the vibration-damping and noise-reducing performances of the metal corrugated tube and can be widely applied to various pipelines of the oilfield petroleum, chemical industry, metallurgy, heat supply and ship power systems.
Description
Technical field:
The utility model relates to the metal bellows of pipeline fittings, a kind of constrained damping structure vibration and noise reducing metal bellows.
Background technique:
Metal bellows is as pipeline fittings, be widely used in the various pipelines of oil, chemical industry, metallurgy, heat supply and ship power system, its flexible element has the distortion of absorption and vibration and noise reducing performance, with the dimensional changes of suction line and the vibration transfer of cutting down pipeline and equipment.At present, the domestic metal bellows that is used for vibration and noise reducing generally is made up of bellows flexible element and the flange that is attached thereto.The manufacturing of bellows element is generally made by the whole shaped by fluid pressure of multilayer thin-walled metallic material, under conditions such as the bearing capacity that guarantees bellows, stability, fatigue behaviour, has less rigidity, the vibration and noise reducing performance that it had only can satisfy the requirement of oil, chemical industry, metallurgy, heating system pipeline, but can not satisfy the requirement that the modern ships manufacturing technology improves day by day to equipment and pipeline vibration and noise reducing performance.
Summary of the invention:
At the problems referred to above, the purpose of this utility model is to provide a kind of constrained damping structure vibration and noise reducing metal bellows, and the vibration and noise reducing performance with further raising metal bellows satisfies the requirement that pipeline improves day by day to the vibration and noise reducing performance.
To achieve these goals, the utility model adopts following technological scheme:
A kind of constrained damping structure vibration and noise reducing metal bellows, form by bellows flexible element and the flange that is attached thereto, this metal bellows flexible element is made of multilayer thin-walled metal material layer, the sticking high damping viscoelastic material that bonds together securely with inside and outside metal layer that accompanies between the thin-wall metal material layer that each faces mutually.
Owing to adopted technique scheme, the utlity model has following good effect:
The utility model is clipped between the two-layer or multiple layer metal of metal bellows the high damping viscoelastic material is sticking, form the restriction damping layer structure, utilize high damping viscoelastic material noise reduction technology, make bellows when being vibrated, restriction damping layer produces tension and compression and shear deformation, by the two comprehensive function, vibration amplification quantity when consumer device or structure resonance, vibrational energy is transformed into thermal dissipation goes out, thereby reach the purpose that improves the vibration and noise reducing performance, further improved the vibration and noise reducing performance of metal bellows, reduced the vibration coupling in the structural system, the resonance of structural system can be effectively suppressed; Compare with the unconfinement damp type metal bellows with spline structure, the vibration and noise reducing performance can improve more than 3～5dB.
Description of drawings:
Fig. 1 is the structural representation of constrained damping structure vibration and noise reducing metal bellows;
Fig. 2 is the partial enlarged drawing of constrained damping structure vibration and noise reducing metal bellows.
Among the figure: 1-thin-wall metal material layer, 2-high damping viscoelastic material, 3-flange.
Embodiment:
As shown in fig. 1, the utility model is made up of bellows flexible element and the flange (3) that is attached thereto.The bellows flexible element is made of multilayer thin-walled metal material layer (1), glues to accompany high damping viscoelastic material (2) between the thin-wall metal material layer (1) that each faces mutually, bonds together securely with inside and outside metal layer.After metal bellows being carried out the damping-constraining processing, improved the vibration and noise reducing performance of metal bellows significantly, reduce the vibration coupling in the structural system, the resonance of structural system can be effectively suppressed, compare with the unconfinement damp type metal bellows with spline structure, the vibration and noise reducing performance can improve more than 3～5dB.This metal bellows has further improved the vibration and noise reducing performance of metal bellows, can be widely used in the various pipelines of oil, chemical industry, metallurgy, heat supply and ship power system.
Claims (1)
1, a kind of constrained damping structure vibration and noise reducing metal bellows, form by bellows flexible element and the flange (3) that is attached thereto, it is characterized in that: this metal bellows flexible element is made of multilayer thin-walled metal material layer (1), the sticking high damping viscoelastic material (2) that bonds together securely with inside and outside metal layer that accompanies between the thin-wall metal material layer (1) that each faces mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420011025 CN2706651Y (en) | 2004-06-10 | 2004-06-10 | Constrained damping structure vibration-damping noise-reducing metal bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420011025 CN2706651Y (en) | 2004-06-10 | 2004-06-10 | Constrained damping structure vibration-damping noise-reducing metal bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2706651Y true CN2706651Y (en) | 2005-06-29 |
Family
ID=34848618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420011025 Expired - Lifetime CN2706651Y (en) | 2004-06-10 | 2004-06-10 | Constrained damping structure vibration-damping noise-reducing metal bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2706651Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604747A (en) * | 2016-03-09 | 2016-05-25 | 广西玉柴机器股份有限公司 | Vibration fracture preventive EGR (exhaust gas recirculation) corrugated pipe |
| CN109193504A (en) * | 2018-11-13 | 2019-01-11 | 国家电网有限公司 | A kind of attachment device for indoor flooring arrangement electrical equipment |
-
2004
- 2004-06-10 CN CN 200420011025 patent/CN2706651Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604747A (en) * | 2016-03-09 | 2016-05-25 | 广西玉柴机器股份有限公司 | Vibration fracture preventive EGR (exhaust gas recirculation) corrugated pipe |
| CN109193504A (en) * | 2018-11-13 | 2019-01-11 | 国家电网有限公司 | A kind of attachment device for indoor flooring arrangement electrical equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LUOYANG SHUANGRUI STEEL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: NO.CHINA SHIPBUILDING INDUSTRY GROUP CO.LTD. 725 INSTITUTE Effective date: 20081031 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081031 Address after: No. 32 Binhe Road, hi tech Development Zone, Henan, Luoyang Province: 471000 Patentee after: Luoyang Shuangrui Special Steel Technology Co., Ltd. Address before: No. 21, Xiyuan Road, Henan, Luoyang Province, China: 471039 Patentee before: No.725 Inst. China Shipping Heavy Industry Group Corp. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090206 Address after: No. 32 Binhe Road, hi tech Development Zone, Henan, Luoyang Province: 471000 Patentee after: Luoyang Shuangrui Special Equipment Co., Ltd. Address before: No. 32 Binhe Road, hi tech Development Zone, Henan, Luoyang Province: 471000 Patentee before: Luoyang Shuangrui Special Steel Technology Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: LUOYANG SHUANGRUI SPECIAL EQUIPMENTS CO., LTD. Free format text: FORMER OWNER: LUOYANG SHUANGRUI STEEL TECHNOLOGY CO., LTD. Effective date: 20090206 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140610 Granted publication date: 20050629 |