CN100458261C - Small diameter metal pipe long-range lining glass reinforced plastic hose repairing method - Google Patents
Small diameter metal pipe long-range lining glass reinforced plastic hose repairing method Download PDFInfo
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- CN100458261C CN100458261C CNB2007101267823A CN200710126782A CN100458261C CN 100458261 C CN100458261 C CN 100458261C CN B2007101267823 A CNB2007101267823 A CN B2007101267823A CN 200710126782 A CN200710126782 A CN 200710126782A CN 100458261 C CN100458261 C CN 100458261C
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- reinforced plastic
- glass reinforced
- plastic hose
- small diameter
- metal pipe
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- 239000011152 fibreglass Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000002184 metal Substances 0.000 title claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 16
- 229920001971 elastomer Polymers 0.000 claims abstract description 21
- 239000005060 rubber Substances 0.000 claims abstract description 21
- 239000012790 adhesive layer Substances 0.000 claims abstract description 18
- 239000000835 fiber Substances 0.000 claims description 26
- 229920002635 polyurethane Polymers 0.000 claims description 11
- 239000004814 polyurethane Substances 0.000 claims description 10
- -1 polypropylene Polymers 0.000 claims description 9
- 229920000728 polyester Polymers 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 4
- 229920005992 thermoplastic resin Polymers 0.000 claims description 4
- 229920002972 Acrylic fiber Polymers 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 229920002334 Spandex Polymers 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims description 3
- 230000008595 infiltration Effects 0.000 claims description 3
- 238000001764 infiltration Methods 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004759 spandex Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000000155 melt Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000010779 crude oil Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009954 braiding Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
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- 239000003292 glue Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
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- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
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- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a method for repairing metal pipeline with small aperture and long distance using soft pipe interlined with glass fiber reinforced plastic. The method comprises prefabricating soft pipe (4) interlined with glass fiber reinforced plastic composed of a soft pipe blank (1), an adhesive layer (2) and a soft rubber pipe (3), introducing the soft pipe (4) interlined with glass fiber reinforced plastic into a metal pipeline to be repaired, tightening the two ends of the soft pipe (4) interlined with glass fiber reinforced plastic, and introducing steam, the adhesive layer (2) on the soft rubber pipe (3) melts under certain temperature and pressure and penetrates into the soft pipe blank (1) to adhere with the inner wall of the metal pipeline, and the adhesive layer (2) becomes hardened with the dropping of temperature and pressure inside the pipe to form glass fiber reinforced plastic lining. The length of the prefabricated soft pipe (4) interlined with glass fiber reinforced plastic can be randomly adjusted, then the soft pipe needs no to be turned over during operation, so as to repair the pipeline with small aperture and long distance. In addition, the method has the advantages of simple process and easy operation, and is an effective method to repair the old pipeline with small aperture.
Description
Technical field:
The invention belongs to the method for pipeline overhaul in the ground surface works, concrete is to repair small-bore, long method apart from metallic conduit with the lining glass reinforced plastic hose method.
Background technique:
The oil field is mainly containing with the old pipe repairing method of steel at present: interspersed vinyl tube method, squeezing and coating slush method, epoxy mortar method, inverted liner glass fibre reinforced plastics method or inner liner stainless steel method etc.These methods generally be applicable to φ 159mm above in, the reparation of heavy caliber steel pipeline, and once repair length and generally be no more than 300m.
Even if adopt the most suitable inverted liner glass reinforced plastic hose method as for small-bore old pipeline below the φ 114mm, once repair length 100m only.The small-caliber pipeline in one step inner lining has two apart from short main cause.The one, aisle spare is little, and the eversion pressure (as 0.2-0.5Mpa) that adopts is not enough usually, turns over motionless, if strengthen eversion pressure, certainly will to increase the stretching resistance of glass reinforced plastic hose, just increase wall thickness, so just will reduce the aisle spare of former pipeline, reduce amount of infusion.The 2nd, adopt unsaturated polyester resins for general purpose to make the adhesive of Glass Steel Tube, though gel time can be controlled by adjusting prescription, the control gel time is still a difficult problem more than 5 hours, brings very big inconvenience to repair.As for interspersed plastic tube, ways such as squeezing and coating clay, because the small-bore pipeline bending, reasons such as cross section deformation are all inapplicable.For above-mentioned reasons, small-bore below the φ 114mm, long-distance pipe reparation is a blank so far.
Summary of the invention:
Technical problem to be solved by this invention be at small-bore below the φ 114mm, long apart from metallic conduit, invent a kind of method that can reach 500m of once repairing, promptly save and invest, do not damage landforms again, help environmental protection, reduce cost of crude oil production, prolong oil field pipe working life.
For achieving the above object, the technology used in the present invention solution is:
A, prefabricated glass reinforced plastic hose
Weave the flexible pipe base of required specification with chemistry or inorfil; With the prefabricated flexible rubber hose of thermoplastic resin, the flexible rubber hose outer wall is covered with adhesive layer; The outer suit flexible pipe base of flexible rubber hose is made glass reinforced plastic hose;
The formation of b, glass reinforced plastic lining
Glass reinforced plastic hose brought into wait to repair in the metallic conduit, and two ends are tightened, feed steam, under 0.2-0.5Mpa pressure, 100-150 ℃ high temperature, adhesive layer fusion on the flexible rubber hose, and infiltration flexible pipe base and metal pipe internal wall is bonding, and along with temperature and pressure decline in the pipe, adhesive layer solidify to form glass reinforced plastic lining.
Described chemical fibre is one or more the mixing in polyester fibre, polypropylene fiber, polyster fibre, acrylic fiber, spandex fibre and the glass fibre, is preferably polyester fibre.
Described flexible rubber hose is a kind of in PVC, polyethylene, polypropylene or the elastic polyurethane, preferred elastomeric polyurethane.
Described adhesive layer adopts polyurethane adhesive.
Technique effect of the present invention is:
(1) because glass reinforced plastic hose is prefabricated in advance, and its length can be regulated arbitrarily as required, because glass reinforced plastic hose is directly brought metallic conduit into, need not overturn again, so can realize the reparation of the long distance of small-bore pipeline.
(2) because the thickness of glass reinforced plastic hose only is 1.5-2mm, thus very little to the diameter influence of pipeline, promptly can not influence fluid flow in the pipeline.
(3) glass reinforced plastic hose can store at normal temperatures for a long time, thereby realizes the prefabricated industrialization of glass reinforced plastic hose.
(4) simplify field repair technology, reduce technical difficulty, save rehabilitation cost.
Description of drawings:
Fig. 1 is the glass reinforced plastic hose structural representation.
Fig. 2 is a glass reinforced plastic lining steel tube segment structure schematic representation.
1-flexible pipe base among the figure; The 2-adhesive layer; The 3-flexible rubber hose; The 4-glass reinforced plastic hose
The 11-metal tube; The 12-glass reinforced plastic lining
Embodiment:
The invention will be further described below in conjunction with accompanying drawing.
By shown in Figure 1, glass reinforced plastic hose 4 is by flexible pipe base 1, adhesive layer 2, flexible rubber hose 3 is formed, wherein flexible pipe base 1 is that tubular is seamless, material is a chemical fibre, and a kind of as polyester fibre, polypropylene fiber, polyster fibre, acrylic fiber, spandex fibre or glass fibre also can be several fibers compound wherein; Certainly be not limited to aforesaid several fiber, if this fiber have the suitable braiding of certain intensity, can anti-crude oil, liquid corrosion thing in the pipeline such as sewage.Wherein said polyester fibre is preferably thermoplasticity saturated polyester fiber, can be made by spinning nozzle injection moulding by the thermoplasticity saturated polyester resin, because this resin has the mechanical strength height, anti-crude oil and oil-polluted water corrosivity are good, characteristics such as quality softness are so be the preferred material of flexible pipe base 1.Flexible pipe base 1 is concrete to be made is fiber filament to be pieced together strand become a line, and lease making, latitude are made into the seamless hose base 1 of required specification by the garden loom, also can adopt other machine certainly or manually be woven into the flexible pipe base 1 of required specification.The thickness of the flexible pipe base 1 after the preferred braiding is 1.2-1.5mm.
The material of flexible rubber hose 3 is a thermoplastic resin, as PVC, polyethylene, polypropylene or elastic polyurethane.Wherein elastic polyurethane oil resistance and temperature tolerance and chemical resistance excellence are bonding firmly with fiber and iron and steel, so preferred elastomeric polyurethane is the manufactured materials of flexible rubber hose 3.The thickness of preferred flexible rubber hose 3 is 0.3-0.5mm.
The glue that adhesive layer 2 is adopted is polyurethane adhesive, produces as Liaoyang City spark polyurethane Co., Ltd, and other unit also can certainly.
Described glass reinforced plastic hose 4 is preferably in garden loom establishment flexible pipe base 1 the flexible rubber hose that is covered with adhesive layer 23 of prefabricated mistake and puts into flexible pipe base 1, is combined into glass reinforced plastic hose 4, and length is not limit.
By shown in Figure 2, repair back glass reinforced plastic lining metal section and form by metallic conduit 11 that has damaged and glass reinforced plastic lining 12.
When actual metal section to damage is repaired, need carry out pretreatment to this pipeline section earlier, can adopt the following step to be:
(1) pipeline location detects
Utilize special instrument to detect pipeline rout to be repaiied, determine the maintenance pipeline section.
(2) waiting that repairing the pipeline section two ends digs the operation hole, and pipeline is disconnected.
(3) utilize cleaning tool such as wiper will manage in adhesive quality obstacle such as dirt remove clean; Adopt local excavation's patterning method with the welding on the pipeline section rigid obstacles such as knurl, cross section deformation exclude, and remove oil film on the tube wall with chemical cleaning, do not have oil, anhydrous lining condition in the pipe but reach.
(4) glass reinforced plastic hose 4 is brought in the pipeline
Available compressed air promotes the flexible foam ball wire rope is extended through the other end from pipeline section one end, and glass reinforced plastic hose 4 is folded into " recessed " shape, and sticks with glue the band binding, keeps " recessed " shape, with wire rope glass reinforced plastic hose 4 is brought into and is waited to repair in the pipeline.Certainly also can adopt other any methods that glass reinforced plastic hose 4 is brought into waits to repair in the pipeline.
Certainly treat and repair pipeline section and carry out pretreatment and also can adopt other any known methods, if with this line treatment to satisfying the lining condition.
After the pretreatment through the front, glass reinforced plastic hose 4 two ends are tightened, utilize steam boiler to feed steam, under 0.2-0.5Mpa pressure and 100-120 ℃ of high temperature from an end, glass reinforced plastic hose 4 fourth contacts, adhesive layer 2 fusions, and infiltration flexible pipe base 1 is bonding with the steel pipe inwall, along with temperature and pressure in the pipe descends, adhesive solidification forms glass reinforced plastic lining 12, this lining forms smooth pipe-in-pipe, thereby plays the effect of repairing used pipeline owing to be close on metallic conduit 11 inwalls.
Claims (7)
1, a kind of small diameter metal pipe long-range lining glass reinforced plastic hose repairing method, its concrete process step is as follows:
A, prefabricated glass reinforced plastic hose
Weave the flexible pipe base (1) of required specification with chemical fibre; With the prefabricated flexible rubber hose of thermoplastic resin (3), flexible rubber hose (3) outer wall is covered with adhesive layer (2); Flexible rubber hose (3) outer suit flexible pipe base (1) is made glass reinforced plastic hose (4);
The formation of b, glass reinforced plastic lining
Glass reinforced plastic hose (4) is brought in the metallic conduit to be repaiied (11), and two ends are tightened, feed steam, under 0.2-0.5Mpa pressure, 100-150 ℃ high temperature, adhesive layer (2) fusion on the flexible rubber hose (3), and infiltration flexible pipe base (1) is bonding with metallic conduit (11) inwall, and along with temperature and pressure in the pipe descends, adhesive layer (2) solidify to form glass reinforced plastic lining (12).
2, according to the described small diameter metal pipe long-range lining glass reinforced plastic hose repairing method of claim 1, it is characterized in that: described chemical fibre is one or more the mixing in polyester fibre, polypropylene fiber, polyster fibre, acrylic fiber, spandex fibre and the glass fibre.
3, according to the described small diameter metal pipe long-range lining glass reinforced plastic hose repairing method of claim 2, it is characterized in that: described chemical fibre is a polyester fibre.
4, according to the described small diameter metal pipe long-range lining glass reinforced plastic hose repairing method of claim 1, it is characterized in that: described flexible rubber hose (3) material is PVC, polyethylene, polypropylene or elastic polyurethane.
5, according to the described small diameter metal pipe long-range lining glass reinforced plastic hose repairing method of claim 4, it is characterized in that: described thermoplastic resin is an elastic polyurethane.
6, according to the described small diameter metal pipe long-range lining glass reinforced plastic hose repairing method of claim 1, it is characterized in that: described adhesive layer (2) is the polyurethane glue-line.
7, according to the described small diameter metal pipe long-range lining glass reinforced plastic hose repairing method of claim 1, it is characterized in that: described vapor (steam) temperature is 100-120 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101267823A CN100458261C (en) | 2007-06-29 | 2007-06-29 | Small diameter metal pipe long-range lining glass reinforced plastic hose repairing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101267823A CN100458261C (en) | 2007-06-29 | 2007-06-29 | Small diameter metal pipe long-range lining glass reinforced plastic hose repairing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101105256A CN101105256A (en) | 2008-01-16 |
| CN100458261C true CN100458261C (en) | 2009-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007101267823A Active CN100458261C (en) | 2007-06-29 | 2007-06-29 | Small diameter metal pipe long-range lining glass reinforced plastic hose repairing method |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554550A (en) * | 2010-12-20 | 2012-07-11 | 广东惠州天然气发电有限公司 | Method for rapidly repairing defects of finned tube module of waste heat boiler |
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| CN102248354B (en) * | 2011-07-05 | 2014-07-30 | 宁波斯达弗液压传动有限公司 | Part seam allowance seamless growing repairing method |
| CN102615468A (en) * | 2012-04-17 | 2012-08-01 | 无锡金鑫集团股份有限公司 | Process method for maintaining core of mechanical connection type motor vehicle radiator |
| CN102788222A (en) * | 2012-07-20 | 2012-11-21 | 河南中拓石油工程技术股份有限公司 | Old pipeline repairing process |
| CN104565593B (en) * | 2014-12-16 | 2016-07-13 | 华北水利水电大学 | Organic fiber PVC MULTILAYER COMPOSITE flexible pipe and preparation method thereof |
| CN106870843A (en) * | 2017-03-13 | 2017-06-20 | 浙江新世科技股份有限公司 | A kind of GRP pipe interface structure |
| CN111022820A (en) * | 2019-12-19 | 2020-04-17 | 江苏众信绿色管业科技有限公司 | Lining pipe for stainless steel pipeline repair and repair process |
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| JPH03256727A (en) * | 1990-03-07 | 1991-11-15 | Nisshinbo Ind Inc | Tubes for lining and heating for non-excavation turnover lining method |
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| JP2000094520A (en) * | 1998-09-24 | 2000-04-04 | Osaka Gas Co Ltd | Method for lining inside of pipe |
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2007
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| JPH03256727A (en) * | 1990-03-07 | 1991-11-15 | Nisshinbo Ind Inc | Tubes for lining and heating for non-excavation turnover lining method |
| US6024910A (en) * | 1996-06-06 | 2000-02-15 | Shonan Gosei-Jushi Seisakusho K.K. | Method for lining a tubular conduit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554550A (en) * | 2010-12-20 | 2012-07-11 | 广东惠州天然气发电有限公司 | Method for rapidly repairing defects of finned tube module of waste heat boiler |
| CN102554550B (en) * | 2010-12-20 | 2015-07-22 | 广东惠州天然气发电有限公司 | Method for rapidly repairing defects of finned tube module of waste heat boiler |
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| CN101105256A (en) | 2008-01-16 |
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Effective date of registration: 20100811 Address after: 163453 Heilongjiang Province, Daqing City Ranghulu District Central Street No. 263 Co-patentee after: DAQING OILFIELD CONSTRUCTION GROUP Co.,Ltd. Patentee after: DA QING PETROLEUM ADMINISTRATION BUREAU Address before: 163453 Heilongjiang Province, Daqing City Ranghulu District Central Street No. 263 Patentee before: DA QING PETROLEUM ADMINISTRATION BUREAU |
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Address after: 163453 Heilongjiang Province, Daqing City Ranghulu District Central Street No. 263 Patentee after: DAQING PETROLEUM ADMINISTRATION Co.,Ltd. Patentee after: DAQING OILFIELD CONSTRUCTION GROUP Co.,Ltd. Address before: 163453 Heilongjiang Province, Daqing City Ranghulu District Central Street No. 263 Patentee before: DA QING PETROLEUM ADMINISTRATION BUREAU Patentee before: DAQING OILFIELD CONSTRUCTION GROUP Co.,Ltd. |
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Effective date of registration: 20220111 Address after: 163453 Heilongjiang Province, Daqing City Ranghulu District Central Plains Road No. 99 Patentee after: DAQING PETROLEUM ADMINISTRATION Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: DAQING OILFIELD CONSTRUCTION GROUP Co.,Ltd. Address before: 163453 Heilongjiang Province, Daqing City Ranghulu District Central Street No. 263 Patentee before: DAQING PETROLEUM ADMINISTRATION Co.,Ltd. Patentee before: DAQING OILFIELD CONSTRUCTION GROUP Co.,Ltd. |