CN112610789A - Corrugated pipe - Google Patents
Corrugated pipe Download PDFInfo
- Publication number
- CN112610789A CN112610789A CN202011564239.3A CN202011564239A CN112610789A CN 112610789 A CN112610789 A CN 112610789A CN 202011564239 A CN202011564239 A CN 202011564239A CN 112610789 A CN112610789 A CN 112610789A
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- CN
- China
- Prior art keywords
- rectifying
- guide shell
- guide cylinder
- corrugated
- pipeline
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 6
- 230000002411 adverse Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Diaphragms And Bellows (AREA)
Abstract
The invention relates to the field of pipeline connecting pieces and discloses a corrugated pipe. The corrugated pipe comprises a guide cylinder and a rectifying structure, the guide cylinder comprises a corrugated part and a rigid part which are connected, and the corrugated part can elastically deform along the axial direction of the guide cylinder so as to change the length of the guide cylinder; the rectifying structure is arranged on the inner side of the guide shell and provided with a plurality of rectifying channels extending along the axial direction of the guide shell, and the rectifying channels can guide air flow. When the pipelines on the two sides of the corrugated pipe vibrate, displace or thermally deform, the rigid part of the guide cylinder receives the acting force of the pipeline and transmits the acting force to the corrugated part, and the corrugated part can elastically deform along the axial direction of the guide cylinder to change the length of the guide cylinder, so that the adverse effects of vibration, displacement, thermal deformation and the like of the pipeline are reduced, the service life is prolonged, the failure rate is reduced, the corrugated pipe has a rectifying effect simultaneously by arranging a rectifying structure on the inner side of the guide cylinder, the pipeline installation space is saved, and the pipeline cost is reduced.
Description
Technical Field
The invention relates to the field of pipeline connecting pieces, in particular to a corrugated pipe.
Background
The gas rectifier is used for changing irregular flowing gas flow into regular flowing gas flow or changing rotating gas flow into linear flowing gas flow. Through carrying out the rectification to gas, reduce the air current vortex that gets into next stage equipment impeller entry, reduce the gas flow loss, effectively eliminate the influence of import distortion air current, improve the operating efficiency of this equipment. The metal corrugated pipe is mainly used for connecting a pipeline and equipment or the pipeline and the pipeline, effectively compensates horizontal, longitudinal and angular displacements, absorbs the cold and hot alternate deformation of the pipeline and absorbs the vibration of the pipeline. The gas rectifier and the metal corrugated pipe are common parts in pipelines of a blower, a compressor and a vacuum pump, and in order to achieve the effects of rectifying, compensating for thermal deformation of the pipelines and damping, the rectifier and the metal corrugated pipe are often used at the same time, so that the pipeline installation space is short, the pipeline structure is complex, the failure rate is high, and the cost is high.
Disclosure of Invention
Based on the above problems, an object of the present invention is to provide a corrugated pipe, which can save the installation space of the pipeline and reduce the cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
a corrugated pipe, comprising:
the guide cylinder comprises a corrugated part and a rigid part which are connected, and the corrugated part can elastically deform along the axial direction of the guide cylinder so as to change the length of the guide cylinder;
the rectifying structure is arranged on the inner side of the guide shell and provided with a plurality of rectifying channels extending along the axial direction of the guide shell, and the rectifying channels can guide air flow.
As a preferable aspect of the bellows of the present invention, the bellows portion includes a plurality of support portions and a plurality of elastic portions that are staggered in the axial direction of the guide cylinder, one elastic portion is interposed between two adjacent support portions, and the elastic portion can elastically deform under the pressing action of the two support portions.
As a preferable aspect of the bellows of the present invention, the cross section of the rectifying passage is circular.
As a preferable scheme of the corrugated pipe of the present invention, the rectifying structure includes a positioning plate and a plurality of seamless steel pipes, an inner cavity of the seamless steel pipe forms the rectifying channel, the seamless steel pipes are mounted on the positioning plate, and the positioning plate is connected with the guide shell.
As the preferable scheme of the corrugated pipe, the positioning plate is welded with the guide shell.
As a preferable aspect of the bellows of the present invention, the cross section of the rectifying passage is a sector.
As a preferable aspect of the bellows of the present invention, the cross section of the rectifying passage is square.
As a preferable aspect of the bellows of the present invention, the cross section of the rectifying passage is square.
As a preferable scheme of the corrugated pipe of the present invention, two sides of the guide shell are respectively provided with a connecting flange.
As a preferable scheme of the corrugated pipe of the present invention, a plurality of connection holes are circumferentially distributed on the connection flange.
The invention has the beneficial effects that:
according to the corrugated pipe provided by the invention, when the pipelines on the two sides of the corrugated pipe vibrate, displace or thermally deform, the rigid part of the guide cylinder is subjected to the acting force of the pipeline and is transmitted to the corrugated part, the corrugated part can elastically deform along the axial direction of the guide cylinder to change the length of the guide cylinder, so that the adverse effects of vibration, displacement, thermal deformation and the like of the pipeline are reduced, the service life is prolonged, and the failure rate is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic structural view of a bellows according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a bellows provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic structural view of a fairing in a bellows, according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a bellows (the rectifying channel is square) according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a corrugated pipe (the rectifying channel is in a fan shape) according to an embodiment of the present invention.
In the figure:
1-a guide shell; 2-a rectifying structure;
11-a corrugated portion; 12-a rigid portion; 13-a connecting flange; 131-a connection hole;
111-a support; 112-a resilient portion;
21-a rectifying channel; 22-a positioning plate; 23-seamless steel tube; 24-a first plate; 25-a second plate; 26-installation
A shaft; 27-third plate.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 5, the present embodiment provides a bellows, which includes a guide shell 1 and a rectifying structure 2. The guide shell 1 comprises a corrugated part 11 and a rigid part 12 which are connected, and the corrugated part 11 can be elastically deformed along the axial direction of the guide shell 1 to change the length of the guide shell 1. The flow rectification structure 2 is arranged on the inner side of the guide shell 1, the flow rectification structure 2 is provided with a plurality of flow rectification channels 21 extending along the axial direction of the guide shell 1, and the flow rectification channels 21 can guide air flow.
When the pipelines on two sides of the corrugated pipe vibrate, displace or deform thermally, the rigid part 12 of the guide cylinder 1 receives the acting force of the pipeline and transmits the acting force to the corrugated part 11, the corrugated part 11 can elastically deform along the axial direction of the guide cylinder 1 to change the length of the guide cylinder 1, thereby reducing the adverse effects of vibration, displacement, thermal deformation and the like of the pipeline, prolonging the service life and reducing the failure rate, the rectifying structure 2 is arranged on the inner side of the guide cylinder 1, the rectifying structure 2 is provided with a plurality of rectifying channels 21 along the axial direction of the guide cylinder 1, and the rectifying channels 21 can guide the airflow, so that the corrugated pipe has the rectifying function at the same time, the pipeline installation space is saved, and the pipeline cost is reduced.
Optionally, the corrugated portion 11 includes a plurality of support portions 111 and a plurality of elastic portions 112 that are staggered in the axial direction of the guide cylinder 1, one elastic portion 112 is interposed between two adjacent support portions 111, and the elastic portion 112 can be elastically deformed by the pressing action of the two support portions 111. The support 111 is annular and made of a rigid material to transmit an acting force.
For ease of machining, the cross-section of the rectifying channel 21 is optionally circular. Optionally, the rectifying structure 2 includes a positioning plate 22 and a plurality of seamless steel tubes 23, an inner cavity of the seamless steel tube 23 forms the rectifying channel 21, the seamless steel tube 23 is mounted on the positioning plate 22, and the positioning plate 22 is connected with the draft tube 1. The plurality of seamless steel tubes 23 are arranged in an array and are arranged along the axial direction of the guide shell 1. The two positioning plates 22 can be arranged and are positioned at the two ends of the seamless steel tube 23. In order to facilitate the fixed connection between the positioning plate 22 and the draft tube 1, optionally, the positioning plate 22 is welded to the draft tube 1, and the positioning plate 22 is slidably connected to the seamless steel tube 23.
Optionally, the cross-section of the rectifying channel 21 is square. At this time, the rectifying structure 2 includes a plurality of first plates 24 and a plurality of second plates 25, the first plates 24 and the second plates 25 are vertically connected to ensure the structural support strength, the first plates 24 and the second plates 25 can be welded on the inner wall of the draft tube 1, and the passage surrounded by the first plates 24 and the second plates 25 is the rectifying passage 21 to guide the irregular airflow to the regular airflow. Optionally, the cross-section of the rectifying channel 21 is square. At this time, the first plate 24 and the second plate 25 are disposed at the same interval, which is advantageous for obtaining more stable air flow.
Optionally, the cross-section of the rectifying channel 21 is fan-shaped. At this time, the rectifying structure 2 includes the mounting shaft 26 and a plurality of third plates 27, the plurality of third plates 27 are distributed along the circumferential direction of the mounting shaft 26, one side of the third plates 27 is connected to the mounting shaft 26, and the other side is connected to the inner wall of the guide cylinder 1.
In order to facilitate connection with a pipeline, optionally, two connecting flanges 13 are respectively arranged on two sides of the guide shell 1. Optionally, a plurality of connection holes 131 are circumferentially distributed on the connection flange 13. The fastening member such as a bolt penetrates the connection hole 131 to fixedly connect the connection flange 13 and the pipeline.
The bellows that this embodiment provided, when the pipeline of bellows both sides produced vibration, displacement or heat altered shape, rigid portion 12 of draft tube 1 received the effort of pipeline, and transmit to corrugated portion 11, corrugated portion 11 can be along the axial elastic deformation of draft tube 1, in order to change the length of draft tube 1, thereby reduce the vibration of pipeline, displacement, adverse effect such as heat altered shape, increase of service life, reduce the fault rate, through setting up rectification structure 2 in the inboard of draft tube 1, rectification structure 2 is provided with a plurality of rectification passageways 21 along the axial of draft tube 1, rectification passageway 21 can lead to the air current, make the bellows possess the rectification simultaneously, the pipeline installation space has been saved, the pipeline cost is reduced.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A corrugated pipe, comprising:
the guide shell (1) comprises a corrugated part (11) and a rigid part (12) which are connected, wherein the corrugated part (11) can elastically deform along the axial direction of the guide shell (1) so as to change the length of the guide shell (1);
the flow-rectifying structure (2) is arranged on the inner side of the guide shell (1), the flow-rectifying structure (2) is provided with a plurality of flow-rectifying channels (21) extending along the axial direction of the guide shell (1), and the flow-rectifying channels (21) can guide air flow.
2. The corrugated portion (11) comprises a plurality of supporting portions (111) and a plurality of elastic portions (112) which are arranged along the axial direction of the guide shell (1) in a staggered manner, one elastic portion (112) is arranged between every two adjacent supporting portions (111), and the elastic portion (112) can elastically deform under the squeezing action of the two supporting portions (111).
3. The bellows according to claim 1, wherein the cross-section of the rectifying channel (21) is circular.
4. The corrugated pipe according to claim 3, wherein the fairing structure (2) comprises a positioning plate (22) and a plurality of seamless steel pipes (23), the inner cavities of the seamless steel pipes (23) form the fairing channel (21), the seamless steel pipes (23) are mounted on the positioning plate (22), and the positioning plate (22) is connected with the guide shell (1).
5. The bellows according to claim 4, wherein the positioning plate (22) is welded to the guide shell (1).
6. The bellows according to claim 1, wherein the cross-section of the rectifying channel (21) is sector-shaped.
7. The bellows according to claim 1, wherein the cross-section of the rectifying channel (21) is square.
8. The bellows according to claim 7, wherein the cross-section of the rectifying channel (21) is square.
9. The bellows according to claim 1, wherein the guide shell (1) is provided with a connecting flange (13) on each side.
10. The bellows according to claim 9, wherein the connection flange (13) has a plurality of connection holes (131) circumferentially distributed thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011564239.3A CN112610789A (en) | 2020-12-25 | 2020-12-25 | Corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011564239.3A CN112610789A (en) | 2020-12-25 | 2020-12-25 | Corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112610789A true CN112610789A (en) | 2021-04-06 |
Family
ID=75247849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011564239.3A Pending CN112610789A (en) | 2020-12-25 | 2020-12-25 | Corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112610789A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1358959A (en) * | 1971-05-03 | 1974-07-03 | Johns Manville | Duct connector |
| US4106798A (en) * | 1976-01-22 | 1978-08-15 | Societe D'etudes De Machines Thermiques-S.E.M.T. | Fluid-tight pipe coupling arrangement |
| FR2490118A1 (en) * | 1980-09-18 | 1982-03-19 | Schafer August | DEVICE FOR REALIZING AN INVERTED TUBE COMPENSATOR FROM A REVOLVING CYLINDER SHAPE PIECE |
| CN2380780Y (en) * | 1999-02-05 | 2000-05-31 | 南京晨光东螺波纹管有限公司 | Pressure-adjointed straight-through axial-pressure balancing corrugation compensator |
| CN102135218A (en) * | 2010-12-27 | 2011-07-27 | 洛阳双瑞特种装备有限公司 | Guide cylinder structure applied on corrugated pipe expansion joint |
| CN102537581A (en) * | 2011-12-27 | 2012-07-04 | 大连益多管道有限公司 | Full-fixation-type bi-directional outer pipe metal corrugated compensator |
| CN105423047A (en) * | 2016-01-12 | 2016-03-23 | 江苏远通波纹管有限公司 | Metal corrugated pipe expansion joint |
| CN105715898A (en) * | 2014-12-02 | 2016-06-29 | 江苏恒丰波纹管有限公司 | Anti-abrasive expansion joint provided with flexible dustproof structure |
| CN105736889A (en) * | 2016-03-16 | 2016-07-06 | 江苏晨光航天波纹管有限公司 | Wear resistant air cooling system compensator |
| CN206817032U (en) * | 2017-06-23 | 2017-12-29 | 丁平 | A kind of hinge type expansion bellow |
| CN208567996U (en) * | 2018-06-19 | 2019-03-01 | 苏州东剑智能科技有限公司 | A kind of pipe segment structure for ultrasonic wave gas meter |
-
2020
- 2020-12-25 CN CN202011564239.3A patent/CN112610789A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1358959A (en) * | 1971-05-03 | 1974-07-03 | Johns Manville | Duct connector |
| US4106798A (en) * | 1976-01-22 | 1978-08-15 | Societe D'etudes De Machines Thermiques-S.E.M.T. | Fluid-tight pipe coupling arrangement |
| FR2490118A1 (en) * | 1980-09-18 | 1982-03-19 | Schafer August | DEVICE FOR REALIZING AN INVERTED TUBE COMPENSATOR FROM A REVOLVING CYLINDER SHAPE PIECE |
| CN2380780Y (en) * | 1999-02-05 | 2000-05-31 | 南京晨光东螺波纹管有限公司 | Pressure-adjointed straight-through axial-pressure balancing corrugation compensator |
| CN102135218A (en) * | 2010-12-27 | 2011-07-27 | 洛阳双瑞特种装备有限公司 | Guide cylinder structure applied on corrugated pipe expansion joint |
| CN102537581A (en) * | 2011-12-27 | 2012-07-04 | 大连益多管道有限公司 | Full-fixation-type bi-directional outer pipe metal corrugated compensator |
| CN105715898A (en) * | 2014-12-02 | 2016-06-29 | 江苏恒丰波纹管有限公司 | Anti-abrasive expansion joint provided with flexible dustproof structure |
| CN105423047A (en) * | 2016-01-12 | 2016-03-23 | 江苏远通波纹管有限公司 | Metal corrugated pipe expansion joint |
| CN105736889A (en) * | 2016-03-16 | 2016-07-06 | 江苏晨光航天波纹管有限公司 | Wear resistant air cooling system compensator |
| CN206817032U (en) * | 2017-06-23 | 2017-12-29 | 丁平 | A kind of hinge type expansion bellow |
| CN208567996U (en) * | 2018-06-19 | 2019-03-01 | 苏州东剑智能科技有限公司 | A kind of pipe segment structure for ultrasonic wave gas meter |
Non-Patent Citations (1)
| Title |
|---|
| 王有伦: "《轻化工与食品设备》", 中国轻工业出版社, pages: 38 - 40 * |
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| PB01 | Publication | ||
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Application publication date: 20210406 |