EP2406533A1 - Manchon pour réparations de canalisation - Google Patents
Manchon pour réparations de canalisationInfo
- Publication number
- EP2406533A1 EP2406533A1 EP10714842A EP10714842A EP2406533A1 EP 2406533 A1 EP2406533 A1 EP 2406533A1 EP 10714842 A EP10714842 A EP 10714842A EP 10714842 A EP10714842 A EP 10714842A EP 2406533 A1 EP2406533 A1 EP 2406533A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sleeve
- shell segments
- pipeline
- protrusions
- shell
- 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.)
- Withdrawn
Links
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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/175—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by using materials which fill a space around the pipe before hardening
Definitions
- the invention relates to a sleeve for pipeline repairs that is axially divided into at least two shell segments and equipped with spacing elements for centring the sleeve on the repaired pipeline as well as at least one filling opening for introduction of hardenable filling into a gap between the inner surface of the shell segments and the outer surface of the repaired pipeline.
- Sleeves of such a type are used for repairs of defects of high-pressure pipelines without a shutdown or without interruption of operation of the pipeline.
- Various methods of pipeline repairs with the use of sleeves installed along the pipeline perimeter are known the objective of which is to increase the carrying capacity of a damaged or otherwise weakened pipeline.
- a common principle of repairs with sleeves is protection against buckling of the defect and partial relief of the defect to prevent propagation of the defect, which could lead to pipeline destruction.
- a known type of sleeves is represented by split sleeves fitted tightly on the pipeline with the use of assembly fixtures with bolts that are disassembled after the connection of both the parts of the sleeve with a longitudinal weld. These sleeves are not attached by welding. A disadvantage of these sleeves is a low efficiency, which does not allow their use for permanent repairs of serious defects.
- a more advanced type is represented by split sleeves that have special filling of the delimited space between the pipeline and the sleeve shell and are not connected to the pipeline with the use of welds.
- This filling which is generally based on epoxy resin, transmits parts of the load from the pipeline wall to the sleeve shell. The efficiency and reliability of the repair decisively depends on the filling type and observance of the specified filling application procedure.
- the sleeve In a known design the sleeve consists of two semi-shells. These semi-shells are placed on the pipeline and then welded to each other with longitudinal welds. The sleeve created like this is centred with the use of centring bolts that are evenly distributed on its perimeter. After centring of the sleeve the sleeve fronts, i.e. gaps between the pipeline and the sleeve are sealed with quick hardening sealant. After hardening of the sleeve fronts the space between the sleeve and the pipeline is filled with an epoxy composite material via filling openings. After hardening of the composite material the centring bolts are cut off on the sleeve surface plane.
- the sleeve consists of two semi-shells seated on two spacing strip that fully encircle the pipeline.
- Each strip consists of two parts connected to each other with longitudinal welds.
- the semi-shells are connected to each other with longitudinal welds.
- the joints between the pipeline, spacing strips and the sleeve are sealed with quick-hardening sealant. After the hardening of the sealant the space between the sleeve and the pipeline is filled with an epoxy composite material via filling/checking openings, which are gradually closed with plugs during the filling.
- the goal of the invention is to propose a sleeve that will have a simple assembly not requiring qualified personnel without compromising the quality of the joint.
- a sleeve for pipeline repairs that is axially divided into at least two shell segments and equipped with spacing elements for centring the sleeve on the repaired pipeline as well as at least one filling opening for introduction of hardenable filling into a gap between the inner surface of the shell segments and the outer surface of the repaired pipeline, in accordance with the invention the principle of which is that in the place of the mutual connection of the shell segments the edges of the shell segments are provided with longitudinal protrusions that are fixed with a common connection profile.
- An advantage of the sleeve based on the presented invention as compared to sleeves with a welded joint is simpler assembly not requiring equipment and qualified personnel for welding, a higher security of the joint as compared to a welded joint, which cannot be subjected to a crack detection test, and a comparable total weight with the known joint while maintaining its strength.
- the sleeve based on this invention has an approx. 3 times higher strength at a comparable price.
- connection profile comprises of a C-profile.
- connection profile is provided with a dovetail groove and the protrusions on the shell segments have the corresponding shape.
- connection profile may be interconnected with the protrusions on the shell segment with locking screws and/or a pin.
- the protrusions on the shell segments may be shaped from the material of the shell segment or they may be produced separately and subsequently welded to the shell segments.
- the spacing elements for centring the sleeve on the repaired pipeline may consist of spacing screws that are screwed in threaded openings of the shell segments, regularly distributed along the perimeter.
- Fig. 1 presents the sleeve in the disassembled condition
- Fig. 2 shows the same sleeve in the assembled condition
- Figs 3 to 9 show various designs of the longitudinal protrusions on the adjacent edges of the shell segments and designs of the corresponding connection profile.
- the sleeve for pipeline repairs in accordance with Fig. 1 and 2 is axially divided into two equal semi-circular shell segments 1.
- the inner diameter of the sleeve is increased as compared to the outer diameter of the pipeline by the required gap between the sleeve and the repaired pipeline 7.
- the edges of the shell segments 1 are provided with longitudinal protrusion 6 that are fixed with a common connection profile 2 during the assembly.
- the connection profile 2 is made of a C-profile. A cross-section of the contact place of the protrusions 6 and connection profile 2 is shown in Fig. 3.
- spacing screws 3 are used that are screwed in threaded openings of the shell segments 1 , regularly distributed along the perimeter.
- both the semi-circular shell segments 1 are applied on the repaired pipeline 7 and the connection profiles 2 are slid onto the contacted protrusions 6.
- the sleeve created this way is centred by turning of the spacing screws 3 in the threaded openings of the shell segments 1.
- the gap 8 between the inner surface of the shell segments 1 and the outer surface of the repaired pipeline 7 is sealed on both the sleeve fronts with quick-hardening sealant 4 after hardening of which hardenable filling, e.g. an epoxy composite material is introduced into the gap 8 via the filling openings 5. After hardening of the composite material the distance screws 3 are cut off on the sleeve surface plane.
- hardenable filling e.g. an epoxy composite material
- the protrusions 6 on the shell segments 1 may also be moulded directly from the material of the shell segment 1. Such a design is shown e.g. in fig. 4 and 8.
- connection profile 2 is provided with a dovetail groove and the protrusions 6 on the shell segments 1 have the corresponding shape.
- connection profile 2 is interconnected with the protrusions 6 on the shell segments 1 with locking screws 9.
- connection profile 2 is interconnected with the protrusions 6 on the shell segments 1 with a pin 10.
- connection profile 2 is fitted with a locking strip 11 on the inner side for bearing on the inner side of the shell segments 1.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CZ200920985U CZ19559U1 (cs) | 2009-03-13 | 2009-03-13 | Objímka pro opravy potrubí |
PCT/CZ2010/000009 WO2010102589A1 (fr) | 2009-03-13 | 2010-01-28 | Manchon pour réparations de canalisation |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2406533A1 true EP2406533A1 (fr) | 2012-01-18 |
Family
ID=40586489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10714842A Withdrawn EP2406533A1 (fr) | 2009-03-13 | 2010-01-28 | Manchon pour réparations de canalisation |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2406533A1 (fr) |
CZ (1) | CZ19559U1 (fr) |
WO (1) | WO2010102589A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102072378B (zh) * | 2010-11-24 | 2012-07-25 | 太原理工大学 | 一种风险源管道泄漏外封堵气囊的快速封堵方法 |
CN104033698A (zh) * | 2014-06-17 | 2014-09-10 | 无锡市崇安区科技创业服务中心 | 一种压力管道带压焊接堵漏的方法 |
CN104455908A (zh) * | 2014-10-24 | 2015-03-25 | 无锡乐华自动化科技有限公司 | 一种带压堵漏的方法 |
RU199158U1 (ru) * | 2020-02-21 | 2020-08-19 | Публичное акционерное общество "Транснефть" (ПАО "Транснефть") | Герметизирующий чопик для ремонта трубопроводов |
CN111702409B (zh) * | 2020-06-03 | 2021-10-29 | 中交广州航道局有限公司 | 船用斧型破岩锤修复方法 |
KR102433096B1 (ko) * | 2021-11-26 | 2022-08-18 | 화성엔지니어링 주식회사 | 리크보수유니트 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005114036A1 (fr) * | 2004-04-29 | 2005-12-01 | Jorge Jose Schuhwerk | Procede et ensemble de reparation d'un pipeline sous-marin |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL161565C (nl) * | 1973-09-14 | 1980-02-15 | Polva Nederland Bv | Aftakking van een hoofdleiding uit kunststof naar een dienstleiding. |
NL175846C (nl) * | 1978-04-10 | 1985-01-02 | Wavin Bv | Aftakstuk van kunststof voor het aanbrengen van aftakkingen in buisleidingen. |
IT1238443B (it) * | 1990-01-26 | 1993-07-26 | Giunto di collegamento per tubazioni in materiale plastico. |
-
2009
- 2009-03-13 CZ CZ200920985U patent/CZ19559U1/cs not_active IP Right Cessation
-
2010
- 2010-01-28 EP EP10714842A patent/EP2406533A1/fr not_active Withdrawn
- 2010-01-28 WO PCT/CZ2010/000009 patent/WO2010102589A1/fr active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005114036A1 (fr) * | 2004-04-29 | 2005-12-01 | Jorge Jose Schuhwerk | Procede et ensemble de reparation d'un pipeline sous-marin |
Non-Patent Citations (1)
Title |
---|
See also references of WO2010102589A1 * |
Also Published As
Publication number | Publication date |
---|---|
CZ19559U1 (cs) | 2009-04-20 |
WO2010102589A1 (fr) | 2010-09-16 |
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Legal Events
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Effective date: 20110830 |
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DAX | Request for extension of the european patent (deleted) | ||
RIC1 | Information provided on ipc code assigned before grant |
Ipc: F16L 55/17 20060101ALI20120926BHEP Ipc: F16L 55/175 20060101AFI20120926BHEP |
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GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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GRAJ | Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted |
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17Q | First examination report despatched |
Effective date: 20130123 |
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18D | Application deemed to be withdrawn |
Effective date: 20130604 |