CN216666895U - Steel epoxy sleeve for increasing axial restraint force of pipeline - Google Patents
Steel epoxy sleeve for increasing axial restraint force of pipeline Download PDFInfo
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- CN216666895U CN216666895U CN202123207096.3U CN202123207096U CN216666895U CN 216666895 U CN216666895 U CN 216666895U CN 202123207096 U CN202123207096 U CN 202123207096U CN 216666895 U CN216666895 U CN 216666895U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model discloses a steel epoxy sleeve for increasing the axial restraint force of a pipeline, which comprises two first steel sleeves, two second steel sleeves and an epoxy resin glue layer, wherein the epoxy resin layer is coated on a pipeline repairing part, the two first steel sleeves are fixed on the pipeline through flanges, the two first steel sleeves are arranged on two end faces of the epoxy resin glue layer, one end of each first steel sleeve is provided with an outer wedge-shaped structure, the two first steel sleeves are symmetrically arranged relative to a pipeline defect part, the two second steel sleeves are arranged on the peripheral wall of the epoxy resin glue layer, one end of each second steel sleeve is provided with an inner wedge-shaped structure matched with the corresponding first steel sleeve, the other end of each second steel sleeve is provided with a locking flange, the two second steel sleeves are connected to the peripheral side of the epoxy resin glue layer through flanges, and the outer wedge-shaped structures are matched with the inner wedge-shaped structures. The utility model discloses a solve the pipeline and restore the position and receive easy damage problem along axial extension behind the axial stress.
Description
Technical Field
The utility model belongs to the technical field of pipeline repair, and particularly relates to a steel epoxy sleeve for increasing axial constraint force of a pipeline.
Background
The pipeline is the most main mode for transporting natural gas, the natural gas pipeline becomes the key point of domestic and foreign pipeline construction, and the loads borne by the pipeline in service mainly include dead load such as pipeline structure dead weight, earth covering load, fluid gravity and the like, and live loads such as traffic load, ground stacking load, temperature load, pipeline internal pressure, floating load, earthquake load and the like.
The steel epoxy sleeve repairing technology is a pipeline repairing method which is widely applied at present, and can repair the position of a pipeline with defects under the condition of not influencing pipeline transportation, but the pipeline repaired by the epoxy steel sleeve still can be under the action of the load in the continuous service process, and the pipeline repairing position is easy to expand and damage along the axial direction after being subjected to axial stress.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: the steel epoxy sleeve for increasing the axial constraint force of the pipeline is provided in order to solve the problem that the pipeline repair part is easy to expand and damage along the axial direction after being subjected to axial stress.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a steel epoxy sleeve for increasing the axial restraint force of a pipeline comprises two first steel sleeves, two second steel sleeves and an epoxy resin adhesive layer, wherein the epoxy resin adhesive layer is coated on a pipeline repairing part, the two first steel sleeves are fixed on the pipeline through flanges, the two first steel sleeves are arranged on two end faces of the epoxy resin adhesive layer, one end of each first steel sleeve is provided with an outer wedge-shaped structure, the two first steel sleeves are symmetrically arranged about a pipeline defect part, the outer wedge-shaped structure end of each first steel sleeve is in contact with the epoxy resin adhesive layer, the two second steel sleeves are arranged on the outer peripheral wall of the epoxy resin adhesive layer, one end of each second steel sleeve is provided with an inner wedge-shaped structure matched with the first steel sleeve, the other end of each second steel sleeve is provided with a locking flange, and the two second steel sleeves are connected to the outer peripheral side of the epoxy resin adhesive layer through flanges, the outer wedge-shaped structure and the inner wedge-shaped structure are mutually matched.
As a further description of the above technical solution:
the first steel sleeve comprises two first semi-arc plates, the two first semi-arc plates are connected through flanges, an outer wedge-shaped structure is arranged at one end of each first semi-arc plate, and the outer wedge-shaped structure is in a conical cylinder shape after the first semi-arc plates are spliced.
As a further description of the above technical solution:
the second steel sleeve is assembled by two second half-arc plates through flange connection to form, one axial end of the second half-arc plate is provided with a locking flange, the locking flange is arranged on the outer peripheral wall of the second half-arc plate, the locking flange on the second steel sleeve integrally forms a circular ring shape, and the inner peripheral wall of the other end of the second half-arc plate forms an inner wedge structure.
As a further description of the above technical solution:
and four reinforcing ribs are arranged between the locking flange and the second steel sleeve at equal intervals on the circumference.
As a further description of the above technical solution:
and a sealing plate is arranged between the two second steel sleeves and arranged at the end part of the second half-arc plate, and the sealing plate is used for shielding a gap between the two second steel sleeves.
As a further description of the above technical solution:
and the second steel sleeve is provided with a through hole.
In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:
(1) the epoxy steel sleeve increases the axial constraint force on the pipeline repairing part by utilizing the acting force between the two second steel sleeves and the friction force between the first steel sleeve and the pipeline, and has the advantages of simple structure and convenience in installation.
(2) The reinforcing ribs between the second steel sleeve and the locking flange can strengthen the connection stability between the locking flange and the second steel sleeve, and can also provide positioning for the hydraulic calipers.
(3) The sealing plate seals the gap between the two second steel sleeves, and epoxy resin glue is prevented from overflowing when epoxy resin glue is injected into the annular cavity.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an exploded schematic view of the present invention;
fig. 3 is a cross-sectional view of the present invention.
Illustration of the drawings: 1. a first steel sleeve; 2. a first half-arc plate; 3. a second steel sleeve; 4. a second half-arc plate; 5. an epoxy resin adhesive layer; 6. locking the flange; 7. reinforcing ribs; 8. a through hole; 9. and (7) sealing the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Referring to fig. 1-3, the present invention provides a technical solution:
the steel epoxy sleeve for increasing the axial constraint force of the pipeline comprises two first steel sleeves 1, two second steel sleeves 3 and epoxy resin glue. Two first steel casings 1 are fixed on the pipeline, the inner peripheral wall of the first steel casing 1 is attached to the outer peripheral wall of the pipeline, the two first steel casings 1 are symmetrical about the pipeline repairing portion, and a certain distance is reserved between the two first steel casings 1. The epoxy resin glue layer 5 is wrapped at the pipeline repairing part, the epoxy resin glue layer 5 is formed by solidifying epoxy resin glue, and the epoxy resin glue layer 5 is arranged between the two first steel sleeves 1. The first steel sleeve 1 is connected through the flange by two first semi-arc plates 2, and 2 one ends of the first semi-arc plates are provided with an outer wedge-shaped structure, and after the two first semi-arc plates 2 are spliced, the outer wedge-shaped structure is in a cone shape, and the outer wedge-shaped structures on the two first steel sleeves 1 are just opposite to each other.
Two second steel sleeves 3 are arranged on the outer peripheral sides of a first steel sleeve 1 and an epoxy resin glue layer 5, an annular cavity is formed between the second steel sleeve 3 and the outer peripheral wall of the pipeline, the epoxy resin glue layer 5 is positioned in the annular cavity, the second steel sleeve 3 is formed by connecting and assembling two second half-arc plates 4 through flanges, a locking flange 6 is arranged at one axial end part of each second half-arc plate 4, the locking flange 6 is circumferentially welded and fixed on the outer peripheral wall of each second half-arc plate 4, the locking flange 6 on each second steel sleeve 3 is integrally in a circular ring shape, an inner wedge-shaped structure is formed on the inner peripheral wall of the other end of each second half-arc plate 4, the inner wedge-shaped structure of each second steel sleeve 3 is matched with the outer wedge-shaped structure of the first steel sleeve 1, four reinforcing ribs 7 are circumferentially and equidistantly welded and fixed between the locking flange 6 and the second steel sleeves 3, the two second steel sleeves 3 are symmetrically arranged, the locking flanges 6 on the two second steel sleeves 3 are oppositely arranged and have a certain interval, be provided with closing plate 9 between two second steel sleeves 3, closing plate 9 sets up the tip at second half arc board 4, closing plate 9 is located same one end of second half arc board 4 with locking flange 6, closing plate 9 stretches out second steel sleeve 3 tip, closing plate 9 welded fastening is at second half arc 4 internal perisporium, closing plate 9 is the semicircle ring-type, closing plate 9 welded fastening is at second half arc 4 internal perisporium, two closing plate 9 concatenations are the ring form, closing plate 9 is used for sheltering from the interval gap between two second steel sleeves 3.
The working principle is as follows: firstly, the installation position of a first steel sleeve 1 is determined according to a pipeline reinforcing part, a marking pen is used for marking the installation position, then a marking area on a pipeline is polished, then two first half-arc plates 2 are installed through flanges, and the two first steel sleeves 1 are symmetrically arranged relative to the pipeline reinforcing part.
Then a second steel sleeve 3 is installed, the inner wedge-shaped structures of the two second half-arc plates 4 are correspondingly matched with the outer wedge-shaped structure of the first steel sleeve 1, then the two second half-arc plates 4 are connected through flanges, and the other steel sleeve is installed in the same way; after the two second steel sleeves 3 are installed, the locking flanges 6 of the two second steel sleeves 3 are spaced at a certain distance, the locking flanges 6 of the two second steel sleeves 3 are screwed up through bolts, the locking flanges 6 are clamped by four hydraulic clamps, the number of the hydraulic clamps is four, the hydraulic clamps are arranged at equal intervals, each hydraulic clamp clamps the reinforcing ribs 7 of the second steel sleeves 3, the bolts on the locking flanges 6 are screwed up after the four hydraulic clamps apply the same force, and the second steel sleeves 3 are tightly clamped with the first steel sleeves 1 in the screwing process. The in-process that hydraulic pressure calliper pressed from both sides tightly, two second steel casings 3 have the trend of moving in opposite directions, second steel casing 3 produces certain pressure to first steel casing 1 in wedge type structure position when first steel casing 1 and the 3 chucking of second steel casing, the frictional force of first steel casing 1 with the pipeline periphery wall has been increased, frictional force interact between first steel casing 1 and the pipeline makes pipeline reinforcement position axial both ends all produce the axial force, the equal directional pipeline reinforcement position of axial force, when pipeline reinforcement position receives the extension power, the axial force of production can offset it.
And sealing gaps between the two second steel sleeves 3 and between the second steel sleeve 3 and the first steel sleeve 1 by using a sealing material, and pouring epoxy resin glue into an annular cavity formed between the second steel sleeve 3 and the outer peripheral wall of the pipeline. Through-hole 8 through a second steel sleeve 3 is to annular cavity evacuation then from the through-hole 8 of another second steel sleeve 3 to injecting epoxy glue in the annular cavity, when the through-hole 8 of evacuation had epoxy glue to spill over, closed the feed valve. And after the epoxy resin adhesive is cooled and formed, the sleeve is installed.
The sealing material is formed by mixing 6 parts of epoxy resin glue and 10 parts of wollastonite powder.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. The steel epoxy sleeve for increasing the axial restraint force of the pipeline is characterized by comprising two first steel sleeves (1), two second steel sleeves (3) and an epoxy resin adhesive layer (5), wherein the epoxy resin adhesive layer is coated on a pipeline repairing part, the two first steel sleeves (1) are fixed on the pipeline through flanges, the two first steel sleeves (1) are arranged on two end faces of the epoxy resin adhesive layer (5), one end of each first steel sleeve (1) is provided with an outer wedge-shaped structure, the two first steel sleeves (1) are symmetrically arranged around a pipeline defect part, the end of the outer wedge-shaped structure is in contact with the epoxy resin adhesive layer (5), the two second steel sleeves (3) are arranged on the peripheral wall of the epoxy resin adhesive layer (5), one end of each second steel sleeve (3) is provided with an inner wedge-shaped structure matched with the first steel sleeves (1), the other end of the second steel sleeve (3) is provided with a locking flange (6), the two second steel sleeves (3) are connected to the outer peripheral side of the epoxy resin glue layer (5) through flanges, and the outer wedge-shaped structure is matched with the inner wedge-shaped structure.
2. The steel epoxy sleeve for increasing axial restraint of a pipe of claim 1, wherein: the first steel sleeve (1) comprises two first half-arc plates (2), two first half-arc plates (2) are connected through flanges, one end of each first half-arc plate (2) is provided with an outer wedge-shaped structure, and the outer wedge-shaped structure is in a cone shape after the first half-arc plates (2) are spliced.
3. The steel epoxy sleeve for increasing axial restraint of a pipe of claim 2, wherein: the second steel sleeve (3) is assembled by two second half-arc plates (4) through flange connection and is formed, one axial end part of the second half-arc plate (4) is provided with a locking flange (6), the locking flange (6) is arranged on the outer peripheral wall of the second half-arc plate (4), the locking flange (6) on the second steel sleeve (3) integrally forms a circular ring shape, and the inner peripheral wall of the other end of the second half-arc plate (4) forms an inner wedge structure.
4. A steel epoxy sleeve for increasing axial restraint of a conduit as claimed in claim 3, wherein: the locking flange (6) and the second steel sleeve (3) are circumferentially arranged at equal intervals by four reinforcing ribs (7).
5. A steel epoxy sleeve for increasing axial restraint of a conduit as claimed in claim 3, wherein: two be provided with closing plate (9) between second steel sleeve (3), closing plate (9) set up the tip of second half arc board (4), closing plate (9) are used for sheltering from the interval gap between two second steel sleeve (3).
6. The steel epoxy sleeve for increasing axial restraint of a pipe of claim 1, wherein: and the second steel sleeve (3) is provided with a through hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123207096.3U CN216666895U (en) | 2021-12-20 | 2021-12-20 | Steel epoxy sleeve for increasing axial restraint force of pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123207096.3U CN216666895U (en) | 2021-12-20 | 2021-12-20 | Steel epoxy sleeve for increasing axial restraint force of pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216666895U true CN216666895U (en) | 2022-06-03 |
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ID=81797427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123207096.3U Active CN216666895U (en) | 2021-12-20 | 2021-12-20 | Steel epoxy sleeve for increasing axial restraint force of pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216666895U (en) |
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2021
- 2021-12-20 CN CN202123207096.3U patent/CN216666895U/en active Active
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