CN104251363A - Gas pipeline bellows plugging method - Google Patents
Gas pipeline bellows plugging method Download PDFInfo
- Publication number
- CN104251363A CN104251363A CN201310258680.2A CN201310258680A CN104251363A CN 104251363 A CN104251363 A CN 104251363A CN 201310258680 A CN201310258680 A CN 201310258680A CN 104251363 A CN104251363 A CN 104251363A
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- China
- Prior art keywords
- bellows
- type clamp
- leak stopping
- region
- clamp tool
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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
- 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
Abstract
The invention provides a gas pipeline bellows plugging method in order to solve the problems that most of leak repairing maintenance methods adopted by most of maintenance units now have the problems of fire welding, long repairing period, so-so bellows carrying capacity, poor retractility and so-so service life of maintained pipelines. The method comprises the following steps: (1) cleaning the outer wall of a leaked or cracked bellows; (2) making a C-type clamp; (3) plugging with a magic wand; (4) making a viscose glass fiber cloth: mixing epoxy glue and rosin water according to a ratio of 1: 1 to obtain an adhesive, and laying the glass fiber cloth at a place plugged by the magic wand and brushing the adhesive; (5) curing the C-type clamp: putting the glass fiber cloth at a reinforcement region and brushing the adhesive, and placing the C-type clamp upside down on a region to be repaired to be used for curing. The gas pipeline bellows plugging method provided by the invention is used for plugging the bellows.
Description
technical field:
The present invention relates to the method for a kind of gas pipe line bellows leak stopping.
background technique:
The pipelines such as coal gas, nitrogen, steam, pressurized air, because the corrosion of internal and external environment often finds that there are crackle or corrosion failure in corrugated expansion pipe place in pipeline long-time running, defect tracking can cause the decline of pipeline bearing capacity, causes energy waste, environmental pollution.
Bellows have crackle or perforation time usually have following methods to solve: 1, install collar clamp for corrugated pipe, 2, pipeline stop use as a servant defective bellows is changed.By Access point Chinese Patent Application No. CN201220301124 " a kind of both arms bellow flare anchor ear ", this double-wall bellow flare anchor ear, be made up of stainless steel main body, described stainless steel main body is columniform hollow tubular structure, and the described internal diameter of stainless steel main body and the external diameter of double-wall bellow flare match.Although utilize this patented technology can eliminate crackle or the perforation of bellows, be reduction of the stretchability of bellows.Patent No. CN01144351.0 utilizes some materials to make leakage blocking sealants, and blocking method and described usage are: make profiling jig, in the cavity formed patent sealing compound injection fixture and bellows appearance.The method easily produces bubble in injection sealing compound process, thus it is inadequate to cause sealing compound density, and compressive strength reduces.In the method for numerous maintenance bellows, adopt anchor ear to be a kind ofly use more method, but the defect of the method is exactly to reduce the stretchability of bellows, the defect secondly adopting anchor ear to process bellows has the feature of the seal for pipe joints difference after maintenance.Change bellows, the method can solve root problem, but needs the pipeline of operation to stop labour, produces and costs dearly concerning total pipeline by normal for impact.
By upper comprehensive described in: the mending-leakage method for maintaining that present most overhaul unit adopts has welding of getting angry mostly, and repairing efficiency is long, and bellows bearing capacity is general, stretchability is poor, keeps in repair general phenomenon in pipeline afterwards working life.
summary of the invention:
The object of the invention is the method that the leak stopping of a kind of gas pipe line bellows is provided for above-mentioned Problems existing, solve the problem of when gas main does not stop to use as a servant, the bellows leaked being carried out to leak stopping reinforcement.The method adopts high-strength structureal adhesives to add light curing compound material and use simultaneously, effectively prevents coal gas in the leakage of leakage point, avoids pipeline to use as a servant the impact caused to user in order to stopping of taking needed for safe construction.
Above-mentioned object is realized by following technological scheme:
The method of gas pipe line bellows leak stopping, the method comprises the steps:
(1) the clean corrugated pipe pipeline outer wall leaking or have crackle;
(2) C-type clamp tool is made;
(3) with magic excellent leak stopping;
(4) viscose glue glass-fiber-fabric is made: add rosin with epoxy resin glue and adjust tackiness agent according to the ratio of 1:1, be laid on by glass-fiber-fabric through the place of the excellent leak stopping of evil spirit and brush tackiness agent;
(5) C-type clamp tool solidification: put glass-fiber-fabric and brushwork adhesive in reinforcement region, being buckled in by C-type clamp tool needs on repair region, and is cured.
The method of described gas pipe line bellows leak stopping, clean leakage described in step (1) or have the corrugated pipe pipeline outer wall of crackle to be remove pipe surface dirt by the body surrounding being not less than 100mm with sand paper or copper brush in defect both sides, and make pipe surface roughness to be repaired be not less than Ra3.2.
The method of described gas pipe line bellows leak stopping, making C-type clamp tool described in step (2) is that light curing compound material is moulded according to the shape of corrugated pipe pipeline the shell that a size and bellows size fit like a glove, specific practice is: in the sunlight by photo-curing material by being pressed in reinforcement region or the region with reinforcement region same shape, after primary solidification, take off and use ultraviolet lamp to solidify again.
Beneficial effect:
The pipeline of method mending-leakage of the present invention is adopted not reduce the original stretchability of bellows; The compressive strength of the leakage point of mending-leakage is than stronger in the past, and because selected material has withstand voltage resistant to elevated temperatures characteristic, the place of making amends for one's faults is there being larger compressive strength before, and pipeline life improves greatly; Have inflammable and explosive characteristic for gas pipe line, the method has to exempt to weld does not get angry, and repairs feature fast; The method is particularly suitable for the main pipeline that inconvenience stops using as a servant maintenance.
embodiment:
The method of gas pipe line bellows leak stopping, the method comprises the steps:
1, the clean corrugated pipe pipeline outer wall leaking or have crackle:
The pipeline such as coal gas, steam, nitrogen of smelter exposes for a long time and works in an outdoor environment, and have the impurity such as oxidation decortication, dirt, remove the bonding effect that these foreign material can ensure adhesive glue, after bellows reinforcement, sealing can reach requirement.Specific practice: thoroughly remove pipe surface by sand paper or copper brush to be not less than 100mm body surrounding in defect both sides and loosen or the scale that tilts and other dirt, and make pipe surface to be repaired have certain roughness.
2, C-type clamp tool is made:
Light curing compound material is used to make C-type clamp tool C-Clamp.Light curing compound material due to self closely, use it as reinforcing material, pressure and No leakage can be born in 10MPa under perforation condition, minimum can long service under perforation condition in pressure be pipeline within 30MPa.Light curing compound material can tolerate the high temperature of 200 degrees Celsius, can under the condition of 120 degrees centigrade long service.Light curing compound material adopts vinyl ester resin as body material, and its chemical mediator-resitant property is excellent.Making method: light curing compound material is moulded a shell C-Clamp according to the shape of corrugated pipe pipeline, its size and bellows size fit like a glove.In the sunlight by photo-curing material by being pressed in reinforcement region or the region with reinforcement region same shape, after primary solidification, take off use ultraviolet lamp solidify again.
3, with magic excellent leak stopping:
First initial stage mending-leakage is carried out to leak with magic rod, the leakage point of pipeline is reduced, reduce leaking as later stage bonding glass-fiber-fabric does homework of medium.
4, viscose glue glass-fiber-fabric is made:
Adjust tackiness agent with epoxy resin glue Y-810A and Y-810B according to the additional rosin of the ratio of 1:1, glass-fiber-fabric be laid on through the place of the excellent leak stopping of evil spirit and brush tackiness agent.Glass-fiber-fabric need be cut into the square shape more bigger than leak source.
5, C-type clamp tool solidification:
Put glass-fiber-fabric and brushwork adhesive in reinforcement region, being buckled in by C-type clamp tool needs on repair region, and is cured.Can overbrushing point when each brushing viscose glue of glass-fiber-fabric, after buckling C-type clamp tool, unnecessary glue is extruded, middle air residual can be reduced like this and increase consistency.
Below be only most preferred embodiment of the present invention, method of the present invention includes but not limited to the technological scheme disclosed in above-described embodiment, and unaccomplished matter of the present invention belongs to the common practise of those skilled in the art.
Claims (3)
1. a method for gas pipe line bellows leak stopping, is characterized in that: the method comprises the steps:
(1) the clean corrugated pipe pipeline outer wall leaking or have crackle;
(2) C-type clamp tool is made;
(3) with magic excellent leak stopping;
(4) viscose glue glass-fiber-fabric is made: add the ratio of rosin according to 1:1 with epoxy resin glue, be laid on by glass-fiber-fabric through the place of the excellent leak stopping of evil spirit and brush tackiness agent;
(5) C-type clamp tool solidification: put glass-fiber-fabric and brushwork adhesive in reinforcement region, being buckled in by C-type clamp tool needs on repair region, and is cured.
2. the method for gas pipe line bellows according to claim 1 leak stopping, it is characterized in that: the clean leakage described in step (1) or have the corrugated pipe pipeline outer wall of crackle to be remove pipe surface dirt by the body surrounding being not less than 100mm with sand paper or copper brush in defect both sides, and make pipe surface roughness to be repaired be not less than Ra3.2.
3. the method for gas pipe line bellows according to claim 1 leak stopping, it is characterized in that: the making C-type clamp tool described in step (2) is that light curing compound material is moulded according to the shape of corrugated pipe pipeline the shell that a size and bellows size fit like a glove, specific practice is: in the sunlight by photo-curing material by being pressed in reinforcement region or the region with reinforcement region same shape, after primary solidification, take off and use ultraviolet lamp to solidify again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310258680.2A CN104251363A (en) | 2013-06-26 | 2013-06-26 | Gas pipeline bellows plugging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310258680.2A CN104251363A (en) | 2013-06-26 | 2013-06-26 | Gas pipeline bellows plugging method |
Publications (1)
| Publication Number | Publication Date |
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| CN104251363A true CN104251363A (en) | 2014-12-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310258680.2A Pending CN104251363A (en) | 2013-06-26 | 2013-06-26 | Gas pipeline bellows plugging method |
Country Status (1)
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| CN (1) | CN104251363A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351674A (en) * | 2015-11-10 | 2016-02-24 | 上海煤气第二管线工程有限公司 | Method for stopping leakage of valve or pipe irregularly deformed due to rusting |
| CN105965204A (en) * | 2016-05-31 | 2016-09-28 | 上海祥贸实业有限公司 | Special repairing method for expansion joint |
| CN106567981A (en) * | 2015-10-10 | 2017-04-19 | 大亚湾核电运营管理有限责任公司 | On-line repairing method for nuclear power station metal pipeline |
| CN108253224A (en) * | 2017-12-07 | 2018-07-06 | 浙江申康管业有限公司 | A kind of fuel gas pipeline leakage pressurized blocking welding method |
| CN109373102A (en) * | 2018-08-01 | 2019-02-22 | 郑州新锐石油工程技术有限公司 | A kind of reinforcement that fixture is combined with fibrous composite |
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| CN1070669A (en) * | 1992-09-22 | 1993-04-07 | 沈阳市煤气供应公司 | A kind of outside leak stopping sealant of ground gas line and blocking method of burying |
| RU2177582C1 (en) * | 2000-07-13 | 2001-12-27 | Дедешко Виктор Никифорович | Method for pipe repairing |
| CN1766400A (en) * | 2004-10-27 | 2006-05-03 | 中国石油天然气集团公司 | Method for reinforcing defective pipeline and composite material therefor |
| CN101275701A (en) * | 2008-05-20 | 2008-10-01 | 王好兵 | Restoring and fastening method for leading fuel gas pipe-line from outdoor to indoor |
| CN101469801A (en) * | 2007-12-25 | 2009-07-01 | 上海宝钢综合开发公司 | On-line repair method for bellows |
| CN101832444A (en) * | 2010-04-29 | 2010-09-15 | 赵逸 | Buried gas bellows emergency repair construction method |
| CN202252611U (en) * | 2011-09-15 | 2012-05-30 | 中国人民解放军理工大学工程兵工程学院 | Rapid adhesive curing fixture for pipeline leaking stoppage |
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2013
- 2013-06-26 CN CN201310258680.2A patent/CN104251363A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1070669A (en) * | 1992-09-22 | 1993-04-07 | 沈阳市煤气供应公司 | A kind of outside leak stopping sealant of ground gas line and blocking method of burying |
| RU2177582C1 (en) * | 2000-07-13 | 2001-12-27 | Дедешко Виктор Никифорович | Method for pipe repairing |
| CN1766400A (en) * | 2004-10-27 | 2006-05-03 | 中国石油天然气集团公司 | Method for reinforcing defective pipeline and composite material therefor |
| CN101469801A (en) * | 2007-12-25 | 2009-07-01 | 上海宝钢综合开发公司 | On-line repair method for bellows |
| CN101275701A (en) * | 2008-05-20 | 2008-10-01 | 王好兵 | Restoring and fastening method for leading fuel gas pipe-line from outdoor to indoor |
| CN101832444A (en) * | 2010-04-29 | 2010-09-15 | 赵逸 | Buried gas bellows emergency repair construction method |
| CN202252611U (en) * | 2011-09-15 | 2012-05-30 | 中国人民解放军理工大学工程兵工程学院 | Rapid adhesive curing fixture for pipeline leaking stoppage |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567981A (en) * | 2015-10-10 | 2017-04-19 | 大亚湾核电运营管理有限责任公司 | On-line repairing method for nuclear power station metal pipeline |
| CN106567981B (en) * | 2015-10-10 | 2019-07-05 | 大亚湾核电运营管理有限责任公司 | Nuclear power station metallic conduit is in lines mending method |
| CN105351674A (en) * | 2015-11-10 | 2016-02-24 | 上海煤气第二管线工程有限公司 | Method for stopping leakage of valve or pipe irregularly deformed due to rusting |
| CN105965204A (en) * | 2016-05-31 | 2016-09-28 | 上海祥贸实业有限公司 | Special repairing method for expansion joint |
| CN105965204B (en) * | 2016-05-31 | 2017-11-03 | 上海祥贸实业有限公司 | Expansion joint special type restorative procedure |
| CN108253224A (en) * | 2017-12-07 | 2018-07-06 | 浙江申康管业有限公司 | A kind of fuel gas pipeline leakage pressurized blocking welding method |
| CN109373102A (en) * | 2018-08-01 | 2019-02-22 | 郑州新锐石油工程技术有限公司 | A kind of reinforcement that fixture is combined with fibrous composite |
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Application publication date: 20141231 |
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| RJ01 | Rejection of invention patent application after publication |