CN116817065B - A multi-directional displacement and deviation compensation device under high pressure - Google Patents
A multi-directional displacement and deviation compensation device under high pressureInfo
- Publication number
- CN116817065B CN116817065B CN202310761846.6A CN202310761846A CN116817065B CN 116817065 B CN116817065 B CN 116817065B CN 202310761846 A CN202310761846 A CN 202310761846A CN 116817065 B CN116817065 B CN 116817065B
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- CN
- China
- Prior art keywords
- ring
- corrugated pipe
- welding
- metal net
- high pressure
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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 a bellows or an expansible folded or corrugated tube
- F16L51/025—Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube with several corrugations
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a multidirectional displacement and deviation compensation device for bearing high pressure, which comprises a corrugated pipe and a metal mesh sleeve, wherein end welding rings are arranged at two ends of the corrugated pipe, end pressing rings are sleeved at the ends of the corrugated pipe, pressing rings are arranged at the trough positions of the middle part of the corrugated pipe, the middle part of the metal mesh sleeve is sleeved on the corrugated pipe and the end pressing rings, the ends of the metal mesh sleeve extend to the end welding rings, each pressing ring is positioned between the metal mesh sleeve and the corrugated pipe, the end welding rings, the end pressing rings and the metal mesh sleeve are connected, a first assembly gap is arranged at the crest position of the corrugated pipe between each adjacent pressing ring, and a second assembly gap is arranged between the metal mesh sleeve and each pressing ring.
Description
Technical Field
The invention belongs to the field of design and manufacture of pump type engines such as liquid rocket engines, gas turbines, aeroengines and the like, is used for realizing high-pressure fluid conveying, swinging displacement compensation and multidirectional assembly deviation compensation, and relates to a high-pressure bearing multidirectional displacement and deviation compensation device.
Background
The high-pressure flexible connecting pipeline device belongs to the field of metal expansion joints and hose manufacturing, is used for realizing high-flow gas-liquid fluid conveying, compensating the swinging displacement and assembly deviation of the connecting devices at two ends, and is widely applied to the fields of liquid rocket engines, steam turbines, gas turbines, aeroengines, heavy petrochemical equipment, heavy-duty automobiles, large ships and the like.
The standard JB-T6171-2013 mentions that the angular universal expansion joint has the function of absorbing any plane internal angle displacement and bearing internal pressure, but under the conditions of high pressure and larger axial dimension, the current bearing capacity, deformation compensation and assembly deviation compensation capacity are limited. In addition, most large-diameter corrugated pipes have no compression ring structure or limited bearing capacity, so that the expansion joint is insufficient in structural strength and bearing capacity, and even if the traditional metal net sleeve structure is adopted for bearing, the net sleeve structure is required to bear radial and axial separation loads at the same time, so that the metal net sleeve is stressed severely, and phenomena such as cracking and wire breakage are extremely easy to occur, so that the expansion joint is unstable and damaged. Furthermore, currently, radial and circumferential compensation structures are not designed at both ends of most compensators, so that torsional deformation and sealing failure phenomena occur after the hose is assembled. The problems can not reliably ensure that the hose has high pressure bearing, swing displacement compensation and multidirectional assembly deviation and deformation compensation performances.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-pressure bearing multidirectional displacement and deviation compensation device which has the compensation functions of medium conveying, swinging deformation and radial and circumferential assembly.
In order to achieve the above purpose, the invention adopts the following technical scheme:
in one aspect, the invention provides a multi-directional displacement and deviation compensation device for bearing high pressure, which comprises a corrugated pipe and a metal net sleeve;
The two ends of the corrugated pipe are respectively provided with an end welding ring, the end part of the corrugated pipe is sleeved with an end pressing ring, the trough part in the middle of the corrugated pipe is provided with a pressing ring, the middle of the metal net sleeve is sleeved on the corrugated pipe and the end pressing rings, the end part of the metal net sleeve extends to the end welding rings, each pressing ring is positioned between the metal net sleeve and the corrugated pipe, and the end welding rings, the end pressing rings and the metal net sleeve are connected;
the adjacent press rings are provided with first assembly gaps at the wave crest positions of the corrugated pipes, and second assembly gaps are arranged between the metal mesh sleeves and the press rings.
The multidirectional compensation swinging device for bearing high pressure is further improved in the invention:
one end of the end welding ring, which is far away from the corrugated pipe, is provided with a spherical sealing structure.
The spherical sealing structure is sleeved with a looper flange.
And a third assembly gap is arranged between the looper flange and the spherical sealing structure.
The spherical sealing structure is sleeved with a rubber O-shaped ring.
An annular groove is formed in the joint position of the end pressing ring and the end welding ring, and the end part of the metal net sleeve extends to the inner wall surface of the annular groove;
And the metal net sleeve is sleeved with a welding lining ring, wherein the welding lining ring is positioned in the annular groove, and the end welding ring, the welding lining ring, the end pressing ring and the metal net sleeve are connected.
The end welding ring, the welding lining ring, the end pressing ring and the metal net sleeve are welded to form a welding structure.
The corrugated pipe is a multi-layer U-shaped corrugated pipe.
The metal net sleeve is pressed between the end welding ring, the welding lining ring and the end pressing ring.
The invention has the following beneficial effects:
When the multidirectional displacement and deviation compensation device for bearing high pressure is specifically operated, the corrugated pipe, the compression rings and the end compression rings are adopted, so that the bearing capacity and the instability resistance of the corrugated pipe can be effectively improved, meanwhile, the adjacent compression rings are provided with the first assembly gaps at the wave crest positions of the corrugated pipe, the second assembly gaps are arranged between the metal mesh sleeve and each compression ring, the integral uniform deformation of the corrugated pipe is effectively controlled, and the local large deformation and instability are prevented, so that the working pressure is increased to more than 30Ma and the working pressure is increased to more than 300mm under the condition that the drift diameter is more than 100mm, the difficult problems of the large axial size and the insufficient high pressure compensation and swinging capacity of the existing metal corrugated pipe/expansion joint structure are solved, and the compensation functions of medium conveying and swinging deformation and radial and circumferential assembly are provided.
In addition, the invention changes the problems of severe stress and insufficient structural strength caused by the fact that the traditional metal hose metal net sleeve bears radial load and axial load at the same time, namely, the radial load is borne by the end pressing ring and the pressing ring, the axial separation load is borne by the structure formed by the metal net sleeve, the end welding ring and the end pressing ring, and the end welding ring, the end pressing ring and the metal net sleeve are connected at the same time, thereby solving the problems of severe stress and insufficient reliability of the metal net sleeve caused by the fact that the traditional metal hose metal net sleeve bears load to the load and the axial separation load at the same time, and leading the metal net sleeve to have higher bearing capacity and working safety.
Further, the metal net sleeve adopts an integral fusion welding structure at the end heads at two ends and the end welding ring, the welding backing ring and the end head pressing ring, the welding backing ring is provided with a groove structure, the fusion welding structure of the end heads can be connected integrally, the fusion area is enlarged, the problems that the welding strength of the traditional metal hose at the end parts of the metal net sleeve is reduced and the deformation stress is concentrated are solved, and the structural strength of the two ends of the metal net sleeve is increased.
Furthermore, the invention is provided with the spherical sealing structure, the looper flange and the rubber O-shaped ring, so that radial and circumferential assembly deviation compensation of the inlet end and the outlet end can be realized simultaneously.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a block diagram of the present invention;
FIG. 3 is a position diagram of a weld backing ring;
FIG. 4 is a block diagram of a spherical seal configuration;
FIG. 5 is a position diagram of a second assembly gap and a first assembly gap;
fig. 6 is a diagram of the present invention.
The welding device comprises a spherical sealing structure 1, a looper flange 2, a welding end ring 3, a welding backing ring 4, a pressing end ring 5, a pressing ring 6, a corrugated pipe 7, a metal net sleeve 8, a rubber O-shaped ring 9, a welding structure 11, groove welding 12, a third assembly gap 13, a spherical structure 14, a second assembly gap 15 and a first assembly gap 16.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the attached drawing figures:
Referring to fig. 1 and 2, the multi-directional displacement and deviation compensation device for bearing high pressure according to the present invention comprises a spherical sealing structure 1, a loose flange 2, an end welding ring 3, a welding backing ring 4, an end pressing ring 5, a pressing ring 6, a corrugated pipe 7, a metal net sleeve 8 and a rubber O-ring 9;
The two ends of the corrugated pipe 7 are both provided with a spherical sealing structure 1 and an end welding ring 3, the end welding ring 3 is positioned between the corrugated pipe 7 and the spherical sealing structure 1, an end pressing ring 5 is sleeved at the end part of the corrugated pipe 7, a pressing ring 6 is arranged at the trough of the middle part of the corrugated pipe 7, a first assembly gap 16 is arranged at the crest position of the corrugated pipe 7 on the adjacent pressing ring 6, a gap is arranged between the outermost pressing ring 6 and the end pressing ring 5 at the outermost crest position of the corrugated pipe 7, and the pressing ring 6 is a U-shaped pressing ring.
The joint position of the end pressing ring 5 and the end welding ring 3 is provided with an annular groove, the middle part of the metal net sleeve 8 is sleeved on the corrugated pipe 7, and the end part of the metal net sleeve 8 is covered on the inner wall surface of the annular groove.
In this embodiment, each compression ring 6 and the end compression ring 5 are located between the metal mesh sleeve 8 and the bellows 7, and a second assembly gap 15 is formed between the metal mesh sleeve 8 and each compression ring 6.
In this embodiment, the metal mesh sleeve 8 is sleeved with a welding collar 4, where the welding collar 4 is located in the annular groove.
In this embodiment, the spherical sealing structure 1 is welded with the end welding ring 3, and the end welding ring 3, the welding backing ring 4, the end pressing ring 5 and the metal mesh sleeve 8 are welded to form a welded structure 11.
In this embodiment, the spherical sealing structure 1 is sleeved with the loose flange 2 and the rubber O-ring 9, where a third assembly gap 13 is provided between the loose flange 2 and the spherical sealing structure 1.
Referring to fig. 1, 5 and 6, in the present invention, the end press ring 5 and the press ring 6 have sufficient strength and rigidity to bear all radial loads formed by gas-liquid internal pressure in the operation of the corrugated pipe 7, the press ring 6 is tightly attached to the corrugated pipe 7 at the trough and straight line segments of the corrugated pipe 7 to improve the bearing capacity of the corrugated pipe 7, and a structure with gradually increased gaps is adopted between the corrugated pipe 7 and the corrugated pipe 7 at the trough position to improve the bearing capacity of the corrugated pipe 7 at the crest position and have deformation compensation capacity, and a first assembly gap 16 is arranged between the metal mesh sleeve 8 and the press ring 6 and the corrugated pipe 7, so that the metal mesh sleeve 8 is guaranteed not to bear radial loads of the corrugated pipe 7 and only bear axial separation loads, thereby improving the load state of the metal mesh sleeve 8 compared with a traditional metal hose and improving the operation safety and reliability of the metal mesh sleeve 8.
Referring to fig. 1 and 3, the metal mesh sleeve 8 forms an integrated welding structure 11 with the spherical sealing structure 1, the end welding ring 3, the welding backing ring 4 and the end pressing ring 5, wherein the metal mesh sleeve 8 is in pressure connection with the end welding ring 3, the welding backing ring 4 and the end pressing ring 5, and the welding backing ring 4 can effectively inhibit bending deformation of the metal mesh sleeve 8, so that damage hidden danger caused by the metal mesh sleeve is effectively avoided. In addition, the welding area of the end welding ring 3 and the welding lining ring 4 is further increased by the groove welding 12 at the welding position, the problems that the welding strength of the traditional metal hose at the end part of the metal net sleeve is reduced and the deformation stress is concentrated are solved, and the strength of the welding part is improved.
Referring to fig. 1 and 5, the bellows 7 includes arc segments at two ends and a straight line segment in the middle to form a plurality of nodes, the nodes are composed of arc wave troughs, straight line segments and arc wave crests connected with the straight line segments in a transitional manner, the cross section of the pressing ring 6 includes a fitting region, a compensation segment and a positioning region, the fitting region is matched with the arc wave troughs and the straight line transition segments of the bellows 7, and an increasing gap, namely a first assembly gap 16, is arranged between the wave crests of the bellows 7 and the outer side of the pressing ring 6, and is used for gap compensation in the swinging process and gradual increasing fitting of the wave crests and concave surfaces in the pressing ring 6, so that deformation compensation of the bellows 7 is realized, load protection is carried out, and excessive deformation and instability damage of the wave crest position of the bellows 7 are prevented.
Referring to fig. 4, the invention is provided with a spherical sealing structure 1, when the swinging device is assembled, when a radial included angle is formed between a connected piece and a hose, the spherical structure 14 on the spherical sealing structure 1 realizes deformation deviation compensation by adjusting the angle, and when the swinging device is assembled, the swinging device is provided with a looper flange 2, and when the circumferential deviation exists, the looper flange 2 can effectively compensate the circumferential deviation.
For turbine driving power equipment which needs to generate swing at two ends of the swinging device, the pipeline connecting the fixing part and the swinging part is provided with the concave-convex spherical flange connection between the pipeline at two ends and the pipeline.
What is not described in detail in the present specification is an industry known technology for those skilled in the art of turbine driven engines, expansion joints, and other mechanical equipment.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the specific embodiments of the present invention without departing from the spirit and scope of the present invention, and any modifications and equivalents are intended to be included in the scope of the claims of the present invention.
Claims (8)
1. The multi-directional displacement and deviation compensation device for bearing high pressure is characterized by comprising a corrugated pipe (7) and a metal net sleeve (8);
The two ends of the corrugated pipe (7) are respectively provided with an end welding ring (3), the end parts of the corrugated pipe (7) are sleeved with end pressing rings (5), the trough parts in the middle of the corrugated pipe (7) are provided with pressing rings (6), the middle of the metal net sleeve (8) is sleeved on the corrugated pipe (7) and the end pressing rings (5), the end parts of the metal net sleeve (8) extend to the end welding rings (3), each pressing ring (6) is positioned between the metal net sleeve (8) and the corrugated pipe (7), and the end welding rings (3), the end pressing rings (5) and the metal net sleeve (8) are connected;
A first assembly gap (16) is formed at the crest position of the corrugated pipe (7) on the adjacent compression rings (6), and a second assembly gap (15) is formed between the metal net sleeve (8) and each compression ring (6);
An annular groove is formed in the joint position of the end pressing ring (5) and the end welding ring (3), and the end part of the metal net sleeve (8) extends to the inner wall surface of the annular groove;
The metal net sleeve (8) is sleeved with a welding lining ring (4), wherein the welding lining ring (4) is positioned in the annular groove, and the end welding ring (3), the welding lining ring (4), the end pressing ring (5) and the metal net sleeve (8) are connected.
2. The multi-directional displacement and deflection compensating device for high pressure according to claim 1, wherein a spherical sealing structure (1) is arranged at one end of the end welding ring (3) far away from the corrugated pipe (7).
3. The multi-directional displacement and deviation compensation device for bearing high pressure according to claim 2, wherein a looper flange (2) is sleeved on the spherical sealing structure (1).
4. A multi-directional displacement and deflection compensating device for high pressure according to claim 3, characterized in that a third assembly gap (13) is provided between the looper flange (2) and the spherical sealing structure (1).
5. The multi-directional displacement and deviation compensation device for bearing high pressure according to claim 2, wherein the spherical sealing structure (1) is sleeved with a rubber O-ring (9).
6. The multi-directional displacement and deflection compensating device for high pressure according to claim 1, wherein the end welding ring (3), the welding backing ring (4), the end pressing ring (5) and the metal mesh (8) are welded to form a welded structure (11).
7. The multi-directional displacement and deflection compensating device for high pressure according to claim 1, wherein the bellows (7) is a multi-layered U-shaped bellows.
8. The multi-directional displacement and deviation compensation device for bearing high pressure according to claim 1, wherein the metal net sleeve (8) is in pressure connection between the end welding ring (3), the welding lining ring (4) and the end pressing ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310761846.6A CN116817065B (en) | 2023-06-26 | 2023-06-26 | A multi-directional displacement and deviation compensation device under high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310761846.6A CN116817065B (en) | 2023-06-26 | 2023-06-26 | A multi-directional displacement and deviation compensation device under high pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116817065A CN116817065A (en) | 2023-09-29 |
| CN116817065B true CN116817065B (en) | 2025-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310761846.6A Active CN116817065B (en) | 2023-06-26 | 2023-06-26 | A multi-directional displacement and deviation compensation device under high pressure |
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| Country | Link |
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| CN (1) | CN116817065B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119885692B (en) * | 2025-03-27 | 2025-08-12 | 西安交通大学 | Optimal design method and related device for metal hose |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228600Y (en) * | 1995-08-03 | 1996-06-05 | 沈阳市广厦热力设备开发制造公司 | Armour cover type explosion-resistant corrugated expansion joint |
| CN204345142U (en) * | 2014-12-02 | 2015-05-20 | 山东飞越机械有限公司 | A kind of heat conducting oil type swivel joint |
| CN210372387U (en) * | 2019-05-07 | 2020-04-21 | 江苏兄弟管业制造有限公司 | Flexible corrugated metal hose |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT250104B (en) * | 1964-04-30 | 1966-10-25 | Waagner Biro Ag | Device for the automatic recording of length differences, axis kinks and axis displacements of pipelines |
| CN211010231U (en) * | 2019-05-17 | 2020-07-14 | 江苏海泰客管道设备有限公司 | Be applied to vacuum apparatus's antidetonation metal collapsible tube |
-
2023
- 2023-06-26 CN CN202310761846.6A patent/CN116817065B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228600Y (en) * | 1995-08-03 | 1996-06-05 | 沈阳市广厦热力设备开发制造公司 | Armour cover type explosion-resistant corrugated expansion joint |
| CN204345142U (en) * | 2014-12-02 | 2015-05-20 | 山东飞越机械有限公司 | A kind of heat conducting oil type swivel joint |
| CN210372387U (en) * | 2019-05-07 | 2020-04-21 | 江苏兄弟管业制造有限公司 | Flexible corrugated metal hose |
Also Published As
| Publication number | Publication date |
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| CN116817065A (en) | 2023-09-29 |
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Effective date of registration: 20240424 Address after: 710049 No. 28 West Xianning Road, Shaanxi, Xi'an Applicant after: XI'AN JIAOTONG University Country or region after: China Applicant after: Sailide (Tianjin) Technology Co.,Ltd. Address before: Beilin District Xianning West Road 710049, Shaanxi city of Xi'an province No. 28 Applicant before: XI'AN JIAOTONG University Country or region before: China |
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