CN105822866B - A kind of axialmode deters noise reduction expansion joint - Google Patents
A kind of axialmode deters noise reduction expansion joint Download PDFInfo
- Publication number
- CN105822866B CN105822866B CN201610154154.5A CN201610154154A CN105822866B CN 105822866 B CN105822866 B CN 105822866B CN 201610154154 A CN201610154154 A CN 201610154154A CN 105822866 B CN105822866 B CN 105822866B
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- CN
- China
- Prior art keywords
- bellows
- expansion joint
- axialmode
- guide shell
- diversion trench
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/025—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with several corrugations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
Abstract
A kind of axialmode deters noise reduction expansion joint, belongs to pipeline expansion compensation device technical field.The axialmode deters noise reduction expansion joint and includes bellows and connecting tube, the bellows and the connecting tube assemble welding for being arranged in its both ends, guide shell is set in bellows, described guide shell one end is fixing end, the other end is free end, the fixing end is welded on the inner wall of bellows medium entrance end connecting tube, and the free end is stretched in the connecting tube of bellows media outlet end；It is particular in that：One group of diversion trench is set on the water conservancy diversion drum outer wall, the deflector hole of arrangement perforation water conservancy diversion tube inner chamber in the diversion trench.The invention avoids bellows expansion joint turbulent flow, noise and pipe-line system vibration problems, so as to ensure that the safe operation of process pipelines.
Description
Technical field
The present invention relates to a kind of type metal expansion joint, particularly a kind of axialmode deters noise reduction expansion joint, belongs to pipeline expansion
Compensation device technical field.
Background technology
In process pipelines are conveyed, pipeline section arrangement is intricate, and pipeline is because of pressure, temperature, medium, vibrations, installation dislocation
Etc. reasons easily cause the variation of axial direction, transverse direction and Angular dimension, for this problem, the generally gold by installing different structure
Belong to expansion joint to be solved, wherein on the linear type pipeline section of process pipelines, for the axial displacement of extraction duct, generally use
Axialmode deters compensation device of the noise reduction expansion joint as pipeline section.
As shown in Figure 1, axialmode type metal expansion joint include bellows 1 and connecting tube 2, bellows 1 and be arranged in its two
2 assemble welding of connecting tube at end.To ensure the steady of pipeline internal medium flowing and reducing the pressure loss, existing axialmode metal
Setting flows to consistent guide shell 3 to expansion joint with medium usually in bellows 1, which is fixed with welding manner
On the inner wall of bellows medium entrance end connecting tube 2, the other end is hatch frame, stretches to the connection of bellows media outlet end
Guan Zhong.Above-mentioned axial expansion joint is in actual moving process, since pressure drop phenomenon on foot, wink can occur often for pipeline internal medium
Between pressure big ups and downs make media flow state disequilibrium or even generate medium counter flow, the medium of reverse flow passes through water conservancy diversion
Gap between 3 openends of cylinder and bellows 1 flows to bellows inner wall sealing chamber, transient medium pressure severe impact bellows
1, expansion joint is caused turbulent flow, noise and pipe-line system vibration problems occur or even expansion joint is caused to destroy, jeopardizes process pipelines
Safe operation.
Invention content
It is an object of the invention to be directed to the drawback of the prior art, ripple caused by counter-flow media can be solved by providing one kind
The technical issues of pipe expansion joint turbulent flow, noise and pipe-line system shake ensures that the axialmode of process pipelines safe operation deters drop
It makes an uproar expansion joint.
Above-mentioned purpose of the present invention is achieved through the following technical solutions：
A kind of axialmode deters noise reduction expansion joint, and including bellows and connecting tube, the bellows is with being arranged in its both ends
Connecting tube assemble welding, guide shell is set in bellows, described guide shell one end is fixing end, and the other end is free end,
The fixing end is welded on the inner wall of bellows medium entrance end connecting tube, and the free end stretches to bellows media outlet
It holds in connecting tube；It is particular in that：One group of diversion trench on the water conservancy diversion drum outer wall is set, arranges and passes through in the diversion trench
The deflector hole of admittance flow cartridge inner cavity.
Above-mentioned axialmode deters noise reduction expansion joint, and the diversion trench is arranged with guide shell centerline axis parallel, diversion trench one
It holds as hatch frame, originates in the free end of guide shell, the other end is resident groove structure, terminates at the fixing end of guide shell,
The deflector hole is located in resident annular groove.
Above-mentioned axialmode deters noise reduction expansion joint, and the deflector hole is oblique hole structure, center axis and media flow side
To 90 ° of angle α ﹤.
Above-mentioned axialmode deters noise reduction expansion joint, the diversion trench quantity, water conservancy diversion hole number and water conservancy diversion bore dia and ripple
Pipe nominal diameter matches.
Above-mentioned axialmode deters noise reduction expansion joint, the nominal D of bellows, the diversion trench quantity, water conservancy diversion hole number
It is S, a diameter of d of deflector hole；As 100mm≤D ＜ 300mm, S=4 group, d=6mm；As 300mm≤D ＜ 600mm, S=6
Group, d=8mm；As 600mm≤D ＜ 1000mm, S=8 group, d=10mm；As 1000mm≤D ＜ 1500mm, S=10 group, d=
12mm；As 1500mm≤D ＜ 2000mm, S=14 group, d=12mm；As D >=2000mm, S=18 group, d=12mm.
The present invention is provided with one group of diversion trench on the outer wall of bellows inner draft tube, and arranges and pass through in the diversion trench
The deflector hole of admittance flow cartridge inner cavity, when pipeline internal medium generates adverse current, the medium of reverse flow passes through bellows and guide shell
Between after gap enters in bellows, along water conservancy diversion drum outer wall in diversion trench directed flow to resident annular groove, then by being arranged on
Deflector hole in resident annular groove is returned in guide shell, thus will not caused by counter-flow media is to bellows and expansion joint turbulent flow, make an uproar
The problem of sound and pipe-line system shake.Deflector hole is designed as oblique hole structure by the present invention, makes center axis and media flow side
To 90 ° of angle α ﹤, therefore the medium under normal-pressure situations can be avoided to enter between bellows and guide shell in cavity, ensure that
The stationarity of pipeline internal medium flowing, reduces the pressure loss.Diversion trench quantity, water conservancy diversion hole number S and deflector hole in the present invention
Diameter d matches with bellows nominal diameter D, and can preferably play diversion trench and deflector hole deters decrease of noise functions, so as into
One step ensure that the safe operation of process pipelines.
Description of the drawings
Fig. 1 is existing axialmode type metal expansion joint structure diagram；
Fig. 2 is schematic structural view of the invention；
Fig. 3 is the guide shell structure diagram that axialmode of the present invention deters noise reduction expansion joint；
Fig. 4 is A-A cross-sectional views in Fig. 3；
Fig. 5 is schematic enlarged-scale view at I in Fig. 4；
Fig. 6 is B-B cross-sectional views in Fig. 3；
Fig. 7 be II in Fig. 6 at schematic enlarged-scale view.
Each list of reference numerals is in figure：1st, bellows, 2, connecting tube, 3, guide shell, 3-1, diversion trench, 3-2, resident annular groove,
3-3, deflector hole.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the invention will be further described.
Referring to Fig. 2, Fig. 3, Fig. 4, Fig. 5, axialmode of the present invention deters noise reduction expansion joint and includes bellows 1 and connection
Pipe 2,2 assemble welding of connecting tube is at 1 both ends of bellows, and the setting guide shell 3 in bellows 1, described 3 one end of guide shell is
Fixing end, the other end are free end, the fixing end be welded the medium entrance end of bellows 1 connection inside pipe wall on, it is described from
It is stretched to by end in the media outlet end connecting tube of bellows 1；It is particular in that：One is set on the outer wall of guide shell 3
Group diversion trench 3-1, the diversion trench 3-1 arranges that diversion trench 3-1 one end is hatch frame, is risen with guide shell centerline axis parallel
The free end of guide shell 3 is started from, the resident annular groove 3-2 structures of other end setting terminate at the fixing end of guide shell 3, led described
The deflector hole 3-3 of arrangement perforation water conservancy diversion tube inner chamber in chute 3-1.
One is provided on the outer wall of 1 inner draft tube 3 of bellows since axialmode of the present invention deters noise reduction expansion joint
Group diversion trench 3-1, and arrangement penetrates through the deflector hole 3-3 of water conservancy diversion tube inner chamber in the diversion trench 3-1, when pipeline internal medium generates
It, can be along outside guide shell 3 after the medium of reverse flow is by the way that gap enters in bellows between bellows 1 and guide shell 3 during adverse current
On wall in diversion trench 3-1 directed flows to resident annular groove 3-2, then the deflector hole 3-3 by being arranged in resident annular groove 3-2 is returned to
In 3 inner cavity of guide shell, therefore avoid turbulent flow, noise and pipe-line system vibrations caused by counter-flow media is to bellows and expansion joint
The problem of.
Referring to Fig. 6, Fig. 7, in axialmode of the present invention deters noise reduction expansion joint, the deflector hole 3-3 is inclined hole knot
90 ° of structure, center axis and media flow angular separation α ﹤.
Referring to Fig. 2, Fig. 3, Fig. 4, in axialmode of the present invention deters noise reduction expansion joint, the diversion trench 3-1, water conservancy diversion
The quantity S and deflector hole 3-3 diameters d of hole 3-3 and 1 nominal diameter D of bellows matches, and thus can preferably play diversion trench 3-
1 and deflector hole 3-3's deters decrease of noise functions, so as to further ensure the safe operation of process pipelines.Embodiment is：
First, as 100mm≤D ＜ 300mm, S=4 group, d=6mm；
2nd, as 300mm≤D ＜ 600mm, S=6 group, d=8mm；
3rd, as 600mm≤D ＜ 1000mm, S=8 group, d=10mm；
4th, as 1000mm≤D ＜ 1500mm, S=10 group, d=12mm；
5th, as 1500mm≤D ＜ 2000mm, S=14 group, d=12mm；
6th, as D >=2000mm, S=18 group, d=12mm.
Claims (4)
1. a kind of axialmode deters noise reduction expansion joint, including bellows (1) and connecting tube (2), the bellows (1) is with being arranged in
Connecting tube (2) assemble welding at its both ends sets guide shell (3) in bellows, and described guide shell (3) one end is fixing end,
The other end is free end, and the fixing end is welded on the medium entrance end of bellows (1) connection inside pipe wall, and the free end is stretched
Enter into the media outlet end connecting tube of bellows (1)；It is characterized in that one group of diversion trench is set on guide shell (3) outer wall
(3-1), the deflector hole (3-3) of arrangement perforation water conservancy diversion tube inner chamber in the diversion trench (3-1)；
The diversion trench (3-1) arranges that diversion trench (3-1) one end is hatch frame, is originated in guide shell centerline axis parallel
The free end of guide shell (3), resident annular groove (3-2) structure of other end setting, terminates at the fixing end of guide shell (3), described to lead
Discharge orifice (3-3) is in resident annular groove (3-2).
2. axialmode type metal expansion joint according to claim 1, it is characterized in that, the deflector hole (3-3) is oblique hole structure,
90 ° of center axis and media flow angular separation α ﹤.
3. axialmode according to claim 1 or 2 deters noise reduction expansion joint, it is characterized in that, diversion trench (3-1) number
Amount, deflector hole (3-3) quantity and deflector hole (3-3) diameter and bellows (1) nominal diameter match.
4. axialmode according to claim 3 deters noise reduction expansion joint, it is characterized in that, the nominal of the bellows (1) is straight
Diameter is D, and diversion trench (3-1) quantity, deflector hole (3-3) quantity are S, deflector hole (3-3) a diameter of d；As 100mm≤D
During ＜ 300mm, S=4 groups, d=6mm；As 300mm≤D ＜ 600mm, S=6 groups, d=8mm；As 600mm≤D ＜ 1000mm
When, S=8 groups, d=10mm；As 1000mm≤D ＜ 1500mm, S=10 groups, d=12mm；As 1500mm≤D ＜ 2000mm
When, S=14 groups, d=12mm；As D >=2000mm, S=18 groups, d=12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610154154.5A CN105822866B (en) | 2016-03-18 | 2016-03-18 | A kind of axialmode deters noise reduction expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610154154.5A CN105822866B (en) | 2016-03-18 | 2016-03-18 | A kind of axialmode deters noise reduction expansion joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105822866A CN105822866A (en) | 2016-08-03 |
| CN105822866B true CN105822866B (en) | 2018-06-26 |
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|---|---|---|---|
| CN201610154154.5A Active CN105822866B (en) | 2016-03-18 | 2016-03-18 | A kind of axialmode deters noise reduction expansion joint |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2369497A1 (en) * | 1976-10-27 | 1978-05-26 | Semt | Thermal expansion joint for coaxial pipes - consists of bellows mounted between flanged rings one of which has seating for internal sleeve end flange |
| US4106798A (en) * | 1976-01-22 | 1978-08-15 | Societe D'etudes De Machines Thermiques-S.E.M.T. | Fluid-tight pipe coupling arrangement |
| EP1908936A1 (en) * | 2006-10-02 | 2008-04-09 | Sjm Co., Ltd. | Flexible conduit element |
| CN201462308U (en) * | 2009-04-03 | 2010-05-12 | 秦皇岛北方管业有限公司 | Anti-blockage smooth expansion joint |
| CN101968152A (en) * | 2010-09-15 | 2011-02-09 | 安徽铜陵科力阀门有限责任公司 | Sealed corrugated compensator |
| CN104500901A (en) * | 2014-12-24 | 2015-04-08 | 洛阳双瑞万基钛业有限公司 | Compensation device for magnesium electrolysis high-temperature chlorine system and using method of compensation device |
| CN205479919U (en) * | 2016-03-18 | 2016-08-17 | 石家庄巨力科技有限公司 | Axialmode metal expansion joint |
-
2016
- 2016-03-18 CN CN201610154154.5A patent/CN105822866B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4106798A (en) * | 1976-01-22 | 1978-08-15 | Societe D'etudes De Machines Thermiques-S.E.M.T. | Fluid-tight pipe coupling arrangement |
| FR2369497A1 (en) * | 1976-10-27 | 1978-05-26 | Semt | Thermal expansion joint for coaxial pipes - consists of bellows mounted between flanged rings one of which has seating for internal sleeve end flange |
| EP1908936A1 (en) * | 2006-10-02 | 2008-04-09 | Sjm Co., Ltd. | Flexible conduit element |
| CN201462308U (en) * | 2009-04-03 | 2010-05-12 | 秦皇岛北方管业有限公司 | Anti-blockage smooth expansion joint |
| CN101968152A (en) * | 2010-09-15 | 2011-02-09 | 安徽铜陵科力阀门有限责任公司 | Sealed corrugated compensator |
| CN104500901A (en) * | 2014-12-24 | 2015-04-08 | 洛阳双瑞万基钛业有限公司 | Compensation device for magnesium electrolysis high-temperature chlorine system and using method of compensation device |
| CN205479919U (en) * | 2016-03-18 | 2016-08-17 | 石家庄巨力科技有限公司 | Axialmode metal expansion joint |
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| Publication number | Publication date |
|---|---|
| CN105822866A (en) | 2016-08-03 |
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Address after: 051530 Xinzhaidian Industrial Park, Zhaoxian County, Shijiazhuang City, Hebei Province Patentee after: SHIJIAZHUANG JULLY SCIENCE & TECHNOLOGY CO.,LTD. Address before: 051530 No. 8 Mingzhu Road, Xinzhaidian, Zhaoxian Industrial Park, Shijiazhuang City, Hebei Province Patentee before: Shijiazhuang Jully Science & Technology Co.,Ltd. |
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Effective date of registration: 20230616 Granted publication date: 20180626 |
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