CN217714106U - Flexible connection expansion joint - Google Patents
Flexible connection expansion joint Download PDFInfo
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- CN217714106U CN217714106U CN202221984178.0U CN202221984178U CN217714106U CN 217714106 U CN217714106 U CN 217714106U CN 202221984178 U CN202221984178 U CN 202221984178U CN 217714106 U CN217714106 U CN 217714106U
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- pipeline
- flexible
- expansion joint
- ring
- flexible connection
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Abstract
The utility model discloses a flexible coupling expansion joint, including first pipeline, second pipeline, third pipeline and flexible connector, same axis setting is followed respectively to first pipeline, second pipeline and third pipeline, is equipped with the clearance between first pipeline and the third pipeline, and the one end of second pipeline is connected with the one end of first pipeline, and the other pot head of second pipeline is established in the outside of the one end of third pipeline, and the flexible connector cladding is in the periphery side of the junction of second pipeline and third pipeline. The technical effects achieved are as follows: by arranging the gap, a telescopic deformation space is reserved for the pipeline, so that the equipment connected with the pipeline can be prevented from being moved to damage the equipment when the pipeline is telescopically deformed; by arranging the soft connecting piece, the sealing performance of the pipeline can be guaranteed while the pipeline can be stretched and deformed; the expansion joint can be formed by directly and rapidly installing the second pipeline and the soft connecting piece on the pipeline on site, or the expansion joint is prefabricated and then installed on the pipeline on site, so that the installation is convenient, and the manufacturing cost is low.
Description
Technical Field
The utility model relates to a pipe connection technical field, concretely relates to flexible coupling expansion joint.
Background
When the temperature of the metal pipeline rises, the pipeline can expand and extend due to the influence of the characteristics of the pipeline, at the moment, if the pipeline is installed without the function of an expansion joint, the pipeline can deform connected equipment along with the increase of the expansion amount, and when the temperature of the pipeline drops, the expansion amount of the pipeline retracts, and the connected equipment moves along with the expansion amount. The pipeline expands with heat and contracts with cold like this, reciprocating motion can reduce the life of connected equipment. The existing expansion joint uses the matching of a screw rod and a nut to fix two flanges, a corrugated pipe is arranged between the two flanges, and the distance between the two flanges can be adjusted by using the matching of the screw rod and the nut. This kind of expansion joint among the prior art, to the big pipeline of diameter, the preparation flange is with high costs, and it is complicated to dismantle the installation operation, simultaneously for the stability of guarantee expansion joint, uses the screw nut cooperation more than three, and for the length of adjusting the expansion joint, need rotate the nut simultaneously, the staff's of being inconvenient in operation.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a flexible coupling expansion joint to solve the complicated inconvenient problem of installation of the expansion joint structure among the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
according to the utility model discloses a first aspect, a flexible coupling expansion joint, including first pipeline, second pipeline, third pipeline and flexible connector, first pipeline the second pipeline with the third pipeline is along same axis setting respectively, first pipeline with be equipped with the clearance between the third pipeline, the one end of second pipeline with the one end of first pipeline is connected, another pot head of second pipeline is established the outside of the one end of third pipeline, the flexible connector cladding is in the second pipeline with the periphery side of the junction of third pipeline.
Further, the joint of the first pipeline and the second pipeline is connected in a welding mode.
The first positioning ring is arranged on the pipe wall of one end, connected with the third pipeline, of the second pipeline, the second positioning ring is arranged on the pipe wall of the third pipeline, and the distance between the first positioning ring and the second positioning ring is larger than or equal to the width of the gap.
Furthermore, the flexible connecting piece is tubular, and two ends of the flexible connecting piece are wrapped and covered on the first positioning ring and the second positioning ring respectively.
Further, one end of the soft connecting piece covers the first positioning ring and extends 100mm to 150mm along the length direction of the second pipeline, and the other end of the soft connecting piece covers the second positioning ring and extends 100mm to 150mm along the length direction of the third pipeline.
Furthermore, the soft connecting piece is formed by winding filter cloth.
Furthermore, the filter cloth is provided with a plurality of mutually parallel folds along the length direction.
Further, a silicon carbide coating is arranged on the surface of the filter cloth.
Further, still include the solid fixed ring of first solid fixed ring and second, the solid fixed ring of first solid fixed ring with the second sets up respectively the both ends of flexible connector.
Furthermore, first solid fixed ring with the solid fixed ring of second all adopts the steel wire to make, first solid fixed ring with the solid fixed ring of second will respectively the both ends ligature of flexible connector be in the pipe wall of second pipeline with on the pipe wall of third pipeline.
The utility model has the advantages of as follows: a gap is formed between the first pipeline and the third pipeline, one end of the second pipeline is connected with one end of the first pipeline, the other end of the second pipeline is sleeved outside one end of the third pipeline, the flexible connecting piece covers the outer peripheral side of the joint of the second pipeline and the third pipeline, a flexible deformation space is reserved for the pipeline by arranging the gap between the first pipeline and the third pipeline, the equipment connected with the pipeline can be effectively prevented from being moved and damaged when the pipeline is in flexible deformation, and the sealing performance of the pipeline can be effectively guaranteed by arranging the flexible connecting piece while the pipeline can be subjected to flexible deformation; overall structure is simple, and first pipeline and third pipeline can be directly obtain after cutting off the pipeline of laying directly, and direct on-the-spot quick installation second pipeline and flexible connectors can constitute the expansion joint on the pipeline, perhaps prefabricate behind the expansion joint on-the-spot welding install the pipeline can, simple to operate, the cost of manufacture is low, the flexible control range of inflation is wide, can all use extremely cold or extremely hot pipeline.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary and that other implementation drawings may be derived from the provided drawings by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a cross-sectional view of a flexible expansion joint according to some embodiments of the present invention.
Fig. 2 is a partially enlarged view of a point a in fig. 1.
In the figure: 1. first pipeline, 2, second pipeline, 3, third pipeline, 4, soft connecting piece, 5, clearance, 6, first holding ring, 7, second holding ring, 8, first solid fixed ring, 9, the solid fixed ring of second.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
As shown in fig. 1 and fig. 2, the utility model discloses a flexible coupling expansion joint in the embodiment of the first aspect, including first pipeline 1, second pipeline 2, third pipeline 3 and flexible connector 4, first pipeline 1, second pipeline 2 and third pipeline 3 set up along same axis respectively, be equipped with clearance 5 between first pipeline 1 and the third pipeline 3, the one end of second pipeline 2 is connected with the one end of first pipeline 1, the other pot head of second pipeline 2 is established in the outside of the one end of third pipeline 3, the periphery side at the junction of second pipeline 2 and third pipeline 3 of flexible connector 4 cladding.
In the above embodiment, it should be noted that the diameters of the first pipeline 1 and the third pipeline 3 are the same, and the first pipeline 1 and the third pipeline 3 can be obtained by cutting off a pipeline laid on site, in this way, the pipeline laid on site is directly used as a part (integral structure) of the expansion joint, and the pipeline and the expansion joint are integral structure; the first pipeline 1 and the third pipeline 3 can also be obtained by respectively processing pipelines in advance, and then are combined with the second pipeline 2 and the soft connecting piece 4 to form an expansion joint, in this way, the pipelines and the expansion joint are mutually independent (split structure), the expansion joint can be obtained before construction, and the expansion joint is installed on the pipelines during construction; the inner diameter of the second pipe 2 is equal to the outer diameter of the first pipe 1, or slightly larger than the outer diameter of the first pipe 1; the width of the gap 5 depends on the amount of expansion of the pipe; and the third pipeline 3 has a length to cross the second pipeline 2, and the length to cross the second pipeline 2 is larger than the contraction amount of the pipeline, and the pipeline is ensured not to fall off when being contracted to the minimum length.
Furthermore, the joint of the first pipeline 1 and the second pipeline 2 is connected in a welding mode, and the inner wall of the second pipeline 2 is connected with the outer wall of the third pipeline 3 in a sliding mode.
Further, the flexible connector 4 can elastically stretch and retract, and the flexible connector 4 covers the outer periphery of the joint of the second pipeline 2 and the third pipeline 3, so that the joint of the second pipeline 2 and the third pipeline 3 is in a sealed state.
The technical effects achieved by the above embodiment are as follows: by arranging the gap 5 between the first pipeline 1 and the third pipeline 3, a telescopic deformation space is reserved for the pipeline, the equipment can be effectively prevented from being damaged by moving equipment connected with the pipeline when the pipeline is telescopically deformed, and by arranging the flexible connecting piece 4, the sealing performance of the pipeline can be effectively guaranteed while the pipeline can be telescopically deformed; overall structure is simple, and first pipeline 1 and third pipeline 3 can be directly obtain after cutting off the pipeline of laying directly, and direct on-the-spot quick installation second pipeline 2 and flexible connectors 4 can constitute the expansion joint on the pipeline, perhaps prefabricate well the expansion joint after the on-the-spot welding install on the pipeline can, simple to operate, the cost of manufacture is low, the flexible control range of inflation is wide, can all use extremely cold or extremely hot pipeline.
Optionally, as shown in fig. 1 and fig. 2, in some embodiments, the device further includes a first positioning ring 6 and a second positioning ring 7, the first positioning ring 6 is disposed on the pipe wall at the end where the second pipe 2 is connected to the third pipe 3, the second positioning ring 7 is disposed on the pipe wall of the third pipe 3, and the distance between the first positioning ring 6 and the second positioning ring 7 is greater than or equal to the width of the gap 5.
In the above alternative embodiment, it should be noted that the first positioning ring 6 and the second positioning ring 7 are made of steel wires, the first positioning ring 6 and the second positioning ring 7 are arranged in parallel, and the first positioning ring 6 and the second positioning ring 7 are welded on the pipe walls of the second pipe 2 and the third pipe 3, respectively.
The beneficial effects of the above alternative embodiment are: through setting up first holding ring 6 and second holding ring 7, can instruct the mounted position at 4 both ends of flexible connecting piece, guarantee flexible connecting piece 4 can wrap up the junction of second pipeline 2 and third pipeline 3 completely, reserve simultaneously and have certain flexible deformation space.
Alternatively, as shown in fig. 1 and 2, in some embodiments, the flexible connecting member 4 is tubular, and both ends of the flexible connecting member 4 are wrapped and covered by the first positioning ring 6 and the second positioning ring 7 respectively.
In the above alternative embodiment, it should be noted that one end of the flexible connector 4 covers the first positioning ring 6 and extends 100mm to 150mm along the length direction of the second pipe 2, and the other end of the flexible connector 4 covers the second positioning ring 7 and extends 100mm to 150mm along the length direction of the third pipe 3.
Furthermore, the flexible connector 4 is made of high-temperature-resistant material, and two ends of the flexible connector 4 are respectively connected with the pipe walls of the second pipeline 2 and the third pipeline 3 in a sealing manner.
Further, the flexible connector 4 may be made of a corrugated tube.
The beneficial effects of the above alternative embodiment are: the one end of flexible connection piece 4 covers first holding ring 6 and extends 100mm to 150mm along the length direction of second pipeline 2, and the other end of flexible connection piece 4 covers second holding ring 7 and extends 100mm to 150mm along the length direction of third pipeline 3, can effectively ensure that flexible connection piece 4 wraps the junction of second pipeline 2 and third pipeline 3 completely, guarantee leakproofness and flexible deformability.
Alternatively, as shown in fig. 1 and 2, in some embodiments, the soft connector 4 is formed by winding a filter cloth.
In the above alternative embodiment, it should be noted that the soft connector 4 is made by wrapping the filter cloth around the joint of the second pipe 2 and the third pipe 3 for two circles, and the filter cloth has a plurality of mutually parallel folds along the length direction thereof, and the folds are wave-shaped folds.
Further, the surface of the filter cloth is provided with a silicon carbide coating.
The beneficial effects of the above alternative embodiment are: the soft connecting piece 4 is formed by winding filter cloth, and is convenient to process and manufacture; the filter cloth is provided with a plurality of mutually parallel folds along the length direction, and after the filter cloth is wound to form the soft connecting piece 4, the folds are distributed along the axial direction of the soft connecting piece 4, so that the soft connecting piece 4 has good telescopic performance; the surface of the filter cloth is provided with the silicon carbide coating, so that the filter cloth is more resistant to high temperature and abrasion and has good corrosion resistance.
Optionally, as shown in fig. 1 and 2, in some embodiments, a first fixing ring 8 and a second fixing ring 9 are further included, and the first fixing ring 8 and the second fixing ring 9 are respectively disposed at two ends of the flexible connector 4.
In the above optional embodiment, it should be noted that the first fixing ring 8 and the second fixing ring 9 are both made of steel wires, and the first fixing ring 8 and the second fixing ring 9 respectively bind the two ends of the flexible connecting element 4 to the tube wall of the second pipeline 2 and the tube wall of the third pipeline 3.
The beneficial effects of the above alternative embodiment are: through setting up first solid fixed ring 8 and two solid fixed ring 9, the both ends of fixed soft connecting piece 4 that can be convenient stable to soft connecting piece 4 takes place to slide or drop in preventing the use.
Because service position, pipeline diameter and the service temperature of pipeline all diverse, consequently the material that the expansion joint adopted is also different, the utility model provides an expansion joint of following two kinds of materials:
example 1
The pipeline is made of a 20G steel pipe, and the service temperature of the adopted filter cloth is 350-550 ℃.
Example 2
The pipeline is made of 310S steel pipes, the service temperature of the adopted filter cloth is 600-800 ℃, and the expansion joint can be used at the lower end of a high-temperature material discharger.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
In the present invention, the terms "upper", "lower", "left", "right", "middle", and the like are used for clarity of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof without substantial changes in the technical content are also regarded as the scope of the present invention.
Claims (10)
1. The utility model provides a flexible coupling expansion joint, characterized in that, includes first pipeline (1), second pipeline (2), third pipeline (3) and flexible connector (4), first pipeline (1) second pipeline (2) with third pipeline (3) are respectively along same axis setting, first pipeline (1) with be equipped with clearance (5) between third pipeline (3), the one end of second pipeline (2) with the one end of first pipeline (1) is connected, the other end cover of second pipeline (2) is established the outside of the one end of third pipeline (3), flexible connector (4) cladding second pipeline (2) with the periphery side of the junction of third pipeline (3).
2. A flexible joint expansion joint according to claim 1, characterized in that the joint of the first conduit (1) and the second conduit (2) is welded.
3. The flexible connection expansion joint according to claim 1, further comprising a first positioning ring (6) and a second positioning ring (7), wherein the first positioning ring (6) is disposed on the wall of the end of the second pipe (2) connected to the third pipe (3), the second positioning ring (7) is disposed on the wall of the third pipe (3), and the distance between the first positioning ring (6) and the second positioning ring (7) is greater than or equal to the width of the gap (5).
4. A flexible connection expansion joint according to claim 3, characterized in that the flexible connection member (4) is tubular, and both ends of the flexible connection member (4) are wrapped around the first retaining ring (6) and the second retaining ring (7), respectively.
5. A flexible connection expansion joint according to claim 4, characterized in that one end of the flexible connection member (4) covers the first retaining ring (6) and extends 100mm to 150mm in the length direction of the second conduit (2), and the other end of the flexible connection member (4) covers the second retaining ring (7) and extends 100mm to 150mm in the length direction of the third conduit (3).
6. A flexible joint expansion joint according to claim 1, characterized in that the flexible joint (4) is made by winding filter cloth.
7. A flexible expansion joint according to claim 6, wherein said filter cloth is provided with a plurality of parallel pleats along its length.
8. A flexible joint expansion joint according to claim 6, wherein the surface of the filter cloth is provided with a silicon carbide coating.
9. A flexible connection expansion joint according to claim 1, characterized by further comprising a first retaining ring (8) and a second retaining ring (9), said first retaining ring (8) and said second retaining ring (9) being arranged at both ends of said flexible connection member (4), respectively.
10. A flexible joint expansion joint according to claim 9, characterized in that the first fixing ring (8) and the second fixing ring (9) are made of steel wire, and the first fixing ring (8) and the second fixing ring (9) bind the two ends of the flexible joint (4) to the wall of the second conduit (2) and the wall of the third conduit (3), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221984178.0U CN217714106U (en) | 2022-07-29 | 2022-07-29 | Flexible connection expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221984178.0U CN217714106U (en) | 2022-07-29 | 2022-07-29 | Flexible connection expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217714106U true CN217714106U (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221984178.0U Active CN217714106U (en) | 2022-07-29 | 2022-07-29 | Flexible connection expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217714106U (en) |
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2022
- 2022-07-29 CN CN202221984178.0U patent/CN217714106U/en active Active
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