CN105822866A - Axial type blocking prevention and noise reduction expansion joint - Google Patents
Axial type blocking prevention and noise reduction expansion joint Download PDFInfo
- Publication number
- CN105822866A CN105822866A CN201610154154.5A CN201610154154A CN105822866A CN 105822866 A CN105822866 A CN 105822866A CN 201610154154 A CN201610154154 A CN 201610154154A CN 105822866 A CN105822866 A CN 105822866A
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- CN
- China
- Prior art keywords
- expansion joint
- noise reduction
- guide shell
- corrugated tube
- pod apertures
- 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.)
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Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention discloses an axial type blocking prevention and noise reduction expansion joint and belongs to the technical field of pipeline expansion compensation devices. The axial type blocking prevention and noise reduction expansion joint comprises a corrugated pipe and connecting pipes. The corrugated pipe and the connecting pipes arranged at the two ends of the corrugated pipe are assembled in a welded mode. A flow guide barrel is arranged in the corrugated pipe, one end of the flow guide barrel is a fixed end, and the other end of the flow guide barrel is a free end. The fixed end is welded to the inner wall of the connecting pipe at the medium inlet end of the corrugated pipe. The free end stretches into the connecting pipe at the medium outlet end of the corrugated pipe. The axial type blocking prevention and noise reduction expansion joint is characterized in that a set of flow guide grooves are formed in the outer wall of the flow guide barrel, and flow guide holes penetrating through an inner cavity of the flow guide barrel are distributed in the flow guide grooves. By means of the axial type blocking prevention and noise reduction expansion joint. The problems of turbulence, noise and pipeline system vibration of the corrugated pipe expansion joint are solved, and accordingly safe operation of technical pipelines is ensured.
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 conveying process pipelines, it is intricate that pipeline section is arranged, pipeline because of pressure, temperature, medium, shake, the reasons such as dislocation are installed easily cause axial, laterally and the change of Angular dimension, for this problem, typically solved by the type metal expansion joint of installation different structure, wherein on the linear type pipeline section of process pipelines, for the axial displacement of extraction duct, axialmode is generally used to deter the noise reduction expansion joint compensation device as pipeline section.
As shown in Figure 1, axialmode type metal expansion joint includes corrugated tube 1 and connecting tube 2, corrugated tube 1 and connecting tube 2 assemble welding being arranged in its two ends.For ensureing the steady of pipeline internal medium flowing and reducing the pressure loss, existing axialmode type metal expansion joint generally arranges in corrugated tube 1 and flows to consistent guide shell 3 with medium, this guide shell 3 one end is fixed on the inwall of corrugated tube medium entrance end connecting tube 2 with welding manner, the other end is hatch frame, stretches in corrugated tube media outlet end connecting tube.Above-mentioned axial expansion joint is in actual moving process; pressure fall phenomenon on foot can occur often due to pipeline internal medium; instantaneous pressure big ups and downs make media flow state disequilibrium; even produce medium counter flow; the medium of reverse flow flows to corrugated tube inner wall sealing chamber by the space between guide shell 3 opening and corrugated tube 1; its transient medium pressure severe impact corrugated tube 1; cause expansion joint that turbulent flow, noise and tubing vibration problems occur; even cause expansion joint to destroy, jeopardize the safe operation of process pipelines.
Summary of the invention
Present invention aims to the drawback of prior art, it is provided that a kind of bellows expansion joint turbulent flow, noise and technical problem of tubing vibrations that can solve the problem that counter-flow media causes, it is ensured that the axialmode of process pipelines safe operation deters noise reduction 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, including corrugated tube and connecting tube, described corrugated tube and the connecting tube assemble welding being arranged in its two ends, guide shell is set in corrugated tube, described guide shell one end is fixing end, the other end is free end, and described fixing end is welded on the inwall of corrugated tube medium entrance end connecting tube, and described free end stretches in corrugated tube media outlet end connecting tube；It is particular in that: arrange one group of guiding gutter on described guide shell outer wall, arranges the pod apertures of through guide shell inner chamber in described guiding gutter.
Above-mentioned axialmode deters noise reduction expansion joint, and described guiding gutter is arranged with guide shell centerline axis parallel, and guiding gutter one end is hatch frame, originate in the free end of guide shell, the other end is resident groove structure, terminates at the fixing end of guide shell, and described pod apertures is positioned in resident annular groove.
Above-mentioned axialmode deters noise reduction expansion joint, and described pod apertures is inclined hole structure, its center axis and media flow angular separation α 90 °.
Above-mentioned axialmode deters noise reduction expansion joint, and described guiding gutter quantity, pod apertures quantity and pod apertures diameter match with corrugated tube nominal diameter.
Above-mentioned axialmode deters noise reduction expansion joint, the nominal D of described corrugated tube, and described guiding gutter quantity, pod apertures quantity are S, a diameter of d of pod apertures；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 guiding gutter on the outer wall of corrugated tube inner draft tube, and in described guiding gutter, arrange the pod apertures of through guide shell inner chamber, when pipeline internal medium produces adverse current, after the medium of reverse flow is by between corrugated tube and guide shell, gap entrance corrugated tube is interior, along guide shell outer wall in guiding gutter directed flow extremely resident annular groove, pod apertures by being arranged in resident annular groove returns in guide shell again, thus without because of counter-flow media, corrugated tube and expansion joint causes turbulent flow, noise and the problem of tubing vibrations.Pod apertures is designed as inclined hole structure by the present invention, make its center axis and media flow angular separation α 90 °, therefore medium can be avoided under normal-pressure situations to enter between corrugated tube and guide shell in cavity, it is ensured that the stationarity of pipeline internal medium flowing, reduce the pressure loss.In the present invention, guiding gutter quantity, pod apertures quantity S and pod apertures diameter d match with corrugated tube nominal diameter D, and can preferably play guiding gutter and pod apertures deters decrease of noise functions, thus further ensures the safe operation of process pipelines.
Accompanying drawing explanation
Fig. 1 is existing axialmode type metal expansion joint structural representation；
Fig. 2 is present configuration schematic diagram；
Fig. 3 is the guide shell structural representation that axialmode of the present invention deters noise reduction expansion joint；
Fig. 4 is A-A cross-sectional view in Fig. 3；
Fig. 5 is schematic enlarged-scale view at I in Fig. 4；
Fig. 6 is B-B cross-sectional view in Fig. 3；
Fig. 7 is schematic enlarged-scale view at II in Fig. 6.
In figure, each list of reference numerals is: 1, corrugated tube, 2, connecting tube, 3, guide shell, and 3-1, guiding gutter, 3-2, resident annular groove, 3-3, pod apertures.
Detailed description of the invention
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 corrugated tube 1 and connecting tube 2, described connecting tube 2 assemble welding is at corrugated tube 1 two ends, guide shell 3 is set in corrugated tube 1, described guide shell 3 one end is fixing end, the other end is free end, and described fixing end is welded on the medium entrance end connecting tube inwall of corrugated tube 1, and described free end stretches in the media outlet end connecting tube of corrugated tube 1；It is particular in that: arrange one group of guiding gutter 3-1 on the outer wall of guide shell 3, described guiding gutter 3-1 arranges with guide shell centerline axis parallel, guiding gutter 3-1 one end is hatch frame, originate in the free end of guide shell 3, the other end arranges resident annular groove 3-2 structure, terminate at the fixing end of guide shell 3, described guiding gutter 3-1 arranges pod apertures 3-3 of through guide shell inner chamber.
On the outer wall of corrugated tube 1 inner draft tube 3, one group of guiding gutter 3-1 it is provided with owing to axialmode of the present invention deters noise reduction expansion joint, and in described guiding gutter 3-1, arrange pod apertures 3-3 of through guide shell inner chamber, when pipeline internal medium produces adverse current, after the medium of reverse flow is by between corrugated tube 1 and guide shell 3, gap entrance corrugated tube is interior, can be along guide shell 3 outer wall in guiding gutter 3-1 directed flow extremely resident annular groove 3-2, during pod apertures 3-3 by being arranged in resident annular groove 3-2 returns to guide shell 3 inner chamber again, therefore avoid because corrugated tube and expansion joint are caused turbulent flow by counter-flow media, noise and the problem of tubing vibrations.
Referring to Fig. 6, Fig. 7, in axialmode of the present invention deters noise reduction expansion joint, described pod apertures 3-3 is inclined hole structure, its center axis and media flow angular separation α 90 °.
Referring to Fig. 2, Fig. 3, Fig. 4, in axialmode of the present invention deters noise reduction expansion joint, described guiding gutter 3-1, quantity S of pod apertures 3-3 and pod apertures 3-3 diameter d match with corrugated tube 1 nominal diameter D, thus can preferably play guiding gutter 3-1 and pod apertures 3-3 deters decrease of noise functions, thus further ensures the safe operation of process pipelines.Embodiment is:
One, as 100mm≤D ＜ 300mm, S=4 group, d=6mm；
Two, as 300mm≤D ＜ 600mm, S=6 group, d=8mm；
Three, as 600mm≤D ＜ 1000mm, S=8 group, d=10mm；
Four, as 1000mm≤D ＜ 1500mm, S=10 group, d=12mm；
Five, as 1500mm≤D ＜ 2000mm, S=14 group, d=12mm；
Six, as D >=2000mm, S=18 group, d=12mm.
Claims (5)
1. an axialmode deters noise reduction expansion joint, including corrugated tube (1) and connecting tube (2), described corrugated tube (1) and connecting tube (2) assemble welding being arranged in its two ends, guide shell (3) is set in corrugated tube, described guide shell (3) one end is fixing end, the other end is free end, and described fixing end is welded on the medium entrance end connecting tube inwall of corrugated tube (1), and described free end stretches in the media outlet end connecting tube of corrugated tube (1)；It is characterized in that, described guide shell (3) outer wall arranges one group of guiding gutter (3-1), described guiding gutter (3-1) is arranged the pod apertures (3-3) of through guide shell inner chamber.
Axialmode the most according to claim 1 deters noise reduction expansion joint, it is characterized in that, described guiding gutter (3-1) is arranged with guide shell centerline axis parallel, guiding gutter (3-1) one end is hatch frame, originate in the free end of guide shell (3), the other end arranges resident annular groove (3-2) structure, terminates at the fixing end of guide shell (3), and described pod apertures (3-3) is positioned in resident annular groove (3-2).
Axialmode type metal expansion joint the most according to claim 2, is characterized in that, described pod apertures (3-3) is inclined hole structure, its center axis and media flow angular separation α 90 °.
4. deterring noise reduction expansion joint according to the axialmode described in claim 1 or 2 or 3, it is characterized in that, described guiding gutter (3-1) quantity, pod apertures (3-3) quantity and pod apertures (3-3) diameter match with corrugated tube (1) nominal diameter.
Axialmode the most according to claim 4 deters noise reduction expansion joint, it is characterized in that, the nominal D of described corrugated tube (1), and described guiding gutter (3-1) quantity, pod apertures (3-3) quantity are S, pod apertures (3-3) a diameter of d；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.
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 true CN105822866A (en) | 2016-08-03 |
| CN105822866B 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 |
|---|---|
| CN105822866B (en) | 2018-06-26 |
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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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