CN101885898B - Composite material for repairing defective pipeline - Google Patents
Composite material for repairing defective pipeline Download PDFInfo
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- CN101885898B CN101885898B CN2009100845384A CN200910084538A CN101885898B CN 101885898 B CN101885898 B CN 101885898B CN 2009100845384 A CN2009100845384 A CN 2009100845384A CN 200910084538 A CN200910084538 A CN 200910084538A CN 101885898 B CN101885898 B CN 101885898B
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Abstract
The invention relates to a composite material for repairing a defective pipeline. The composite material comprises a resin system and a reinforcing putty system, wherein the resin system comprises the following components in percentage by weight: 45-55 percent of epoxy resin, 5-15 percent of modified aliphatic amine curing agent, 2.5-25 percent of low-molecular polyamide curing agent, 1-2 percent of 2,4,6-trisphenol accelerator, 0.5-3.5 percent of imidazole accelerator, 0-8 percent of epoxy active thinner, 0-1.5 percent of coupler, 0-5 percent of toughener and 0-1 percent of pigment, and the reinforcing putty system comprises the following components in percentage by weight: 45-55 percent of epoxy resin, 2.5-15 percent of modified aliphatic amine curing agent, 2.5-30 percent of low-molecular polyamide curing agent, 0.5-2.5 percent of 2,4,6-trisphenol accelerator, 0.5-3.5 percent of imidazole accelerator, 0-7.5 percent of epoxy active thinner, 0-1 percent of coupler and 10 percent of mixture of glass beads and alumina.
Description
Technical field
The present invention is a kind of matrix material of repairing defective pipeline.Relate to the tubing system technical field.
Background technology
Because the influence of factors such as burn into third party destruction, oil and gas pipes defective can occur in-service inevitably.Statistics shows, surpasses 4 * 10 by the end of China in 2007 in the long oil and gas pipeline length overall of labour
4Km, wherein quite a few a large amount of dissimilar defectives occur through being on active service for many years.For guaranteeing the pipe safety operation, have to defect of pipeline is repaired even brownout operation.The reparation of body defective has become essential, regular work in the oil and gas pipes operational process, and receives the restriction of oil transportation gas production task, and most pipelines need be in the reparation that does not stop to carry out under the defeated situation defective.
Body recovery technique in the pipeline rehabilitation mainly comprises repair welding, benefit plate, sleeve, interspersed plastics tubing and inverted liner reparation, and all there is certain technical deficiency in these recovery techniques.Compare with traditional metallic substance restorative procedure, the matrix material recovery technique has tangible advantage as a kind of new body restorative procedure: 1) matrix material specific tenacity, specific modulus height; 2) the matrix material designability is strong; 3) matrix material has multiple moulding process; 4) matrix material reinforcement technology repair time is short, cost is low, the field repair required equipment is simple.These advantages of matrix material have satisfied the technical requirements of long oil and gas pipeline to the body repair materials basically, apply the development trend that this technology has become the body defect repair.State's interior tube body matrix material recovery technique is started late, and only has PetroChina Company Limited. piping study center and Beijing Anke Pipeline Project Technology Co., Ltd to grasp the carbon-fibre composite recovery technique of defect of pipeline.This technology adopts wet winding method that flexible fiber cloth is wrapped on the pipeline; Simultaneously with the resin brushing on cloth, resin solidification and form matrix material at a certain temperature with fiber, matrix material is close on the body; Share most of load, thereby play the purpose of pipe-repairing.
Wet winding method advantage is that constructional method is simple, resin solidification fast (2-4h set time), follow-up anticorrosion process are simple.Resin system in the matrix material plays protection fiber, transmitted load, gives full play to the vital role of fibrous mechanical property, and has determined the quality of temperature tolerance, toughness, electrical property, manufacturability and the corrosion resistance nature of matrix material to a great extent.But the resin system of selecting for use in the wet winding method construction of matrix material at present; Be wellability and matching satisfied and thomel; Can't have both good workability and antiseptic property simultaneously; Particularly do not consider the performance permanent stability behind the resin reinforcement buried pipeline; Cause phenomenons such as (pipeline life is generally greater than the 30 years) existence in long service of pipeline rehabilitation layer is prone to wear out, sticking power downgrade, the resin system in the matrix material recovery technique is not through the detection of each item long-term behaviour at present, and there is certain potential safety hazard in the repair place.In order to solve the problem that resin formula exists in the matrix material recovery technique; A kind of resin system and reinforcement putty are developed in " a kind of method of reinforcing defective pipeline and matrix material thereof " application for a patent for invention (application number 200410084164.3) of " carbon-fibre composite that defective pipeline is renovation reinforced and method " patent of invention (ZL 200410080359.0) of University of Science & Technology, Beijing and Huayou Natural-Gas Co., Ltd., Beijing application on September 30th, 2004 and China National Petroleum Corporation (CNPC), Tubular Goods Research Center of China National Petroleum Corporation; Have both good fiber wetness and matching, good workability and antiseptic property simultaneously; Remedy the deficiency of matrix material recovery technique, improve matrix material recovery technique permanent stability.But blemish in an otherwise perfect thing is the process each item long-term behaviour detection of resin system in the present matrix material recovery technique, and there is certain potential safety hazard in the repair place.
Summary of the invention
The objective of the invention is to invent a kind of matrix material that has both the repairing defective pipeline of good fiber wetness and matching, good workability and antiseptic property, raising matrix material permanent stability, reliable in quality, excellent combination property simultaneously.
The present invention is made up of resin system and reinforcement putty system, and reinforcement putty system is earlier to the corrosion location reinforcement, and resin system is covered in outside it again.
Said resin system comprises: epoxy resin, modified aliphatic amine hardener, Versamid solidifying agent, 2,4,6-three (dimethylamino methyl) phenol promotor, imidazoles promotor, epoxies reactive thinner, coupling agent, toughner.
Its proportioning is in total amount 100:
A) epoxy resin accounts for 45-55%;
B) the modified aliphatic amine hardener accounts for 5-15%;
C) the Versamid solidifying agent accounts for 2.5-25%;
D) 2,4,6-three (dimethylamino methyl) phenol promotor accounts for 1-2%;
E) imidazoles promotor accounts for 0.5-3.5%;
F) the epoxies reactive thinner accounts for 0-8%;
G) coupling agent (r-aminopropyltriethoxywerene werene) accounts for 0-1.5%;
H) toughner (KZ-686) accounts for 0-5%;
I) pigment accounts for 0-1%.
Said reinforcement putty system comprises: epoxy resin, modified aliphatic amine hardener, Versamid solidifying agent, 2; 4,6-three (dimethylamino methyl) phenol promotor, imidazoles promotor, epoxies reactive thinner, coupling agent, glass microballon and alumina mixture.
Its proportioning is in total amount 100:
A) epoxy resin accounts for 45-55%;
B) modified fatty amine curing agent accounts for 2.5-15%;
C) the Versamid solidifying agent accounts for 2.5-30%;
D) 2,4,6-three (dimethylamino methyl) phenol promotor accounts for 0.5-2.5%;
E) imidazoles promotor accounts for 0.5-3.5%;
F) the epoxies reactive thinner accounts for 0-7.5%;
G) coupling agent (r-aminopropyltriethoxywerene werene) accounts for 0-1%;
H) glass microballon, alumina mixture account for 10%.
The present invention relates to a kind of metallic conduit defect repair material resin system, the defect repair that is specially adapted to buried metal pipeline is used resin system.Can be applicable to domestic all oil, natural gas line reparation and area of maintenance.
The invention solves easy aging, the unsettled phenomenon of long-term behaviour of matrix material reparation (pipeline life is generally greater than 30 years) existence in long service in the domestic metallic conduit reparation.Remedy the deficiency of pipeline strength rehabilitation, improved the permanent stability that matrix material is repaired with the composite resin system.
Embodiment
Embodiment. this example is the matrix material of an experiment with repairing defective pipeline.It is made up of resin system and reinforcement putty system, and reinforcement putty system is earlier to the corrosion location reinforcement, and resin system is covered in outside it again.
Resin system comprises: epoxy resin, modified aliphatic amine hardener, Versamid solidifying agent, 2,4,6-three (dimethylamino methyl) phenol promotor, imidazoles promotor, epoxies reactive thinner, coupling agent, toughner.
Its proportioning is in total amount 100:
A) epoxy resin accounts for 50%;
B) the modified aliphatic amine hardener accounts for 10%;
C) the Versamid solidifying agent selects 651, accounts for 20.5%;
D) 2,4,6-three (dimethylamino methyl) phenol promotor accounts for 2.5%;
E) imidazoles promotor accounts for 2.5%;
F) the epoxies reactive thinner accounts for 7.5%;
G) coupling agent selects the r-aminopropyltriethoxywerene werene, accounts for 1.5%;
H) toughner selects KZ-686, accounts for 5%;
I) pigment accounts for 0.5%.
Reinforcement putty system comprises: epoxy resin, modified aliphatic amine hardener, Versamid solidifying agent, 2; 4,6-three (dimethylamino methyl) phenol promotor, imidazoles promotor, epoxies reactive thinner, coupling agent, glass microballon and alumina mixture.
Its proportioning is in total amount 100:
A) epoxy resin accounts for 50%;
B) modified fatty amine curing agent accounts for 15%;
C) Versamid solidifying agent (651) accounts for 15%;
D) 2,4,6-three (dimethylamino methyl) phenol promotor accounts for 2%;
E) imidazoles promotor accounts for 3%;
F) the epoxies reactive thinner accounts for 4%;
G) coupling agent (r-aminopropyltriethoxywerene werene) accounts for 1%;
H) glass microballon, alumina mixture account for 10%.
This example pipe network has northeastward been got 1 kilometer as test, and pipe surface is cleaned out in excavation section by section, reparation earlier during reparation, repair at corrosion location with above-mentioned reinforcement putty system again, is covered in outside it with resin system at last.
This example is through the test in 1 year of pipe network northeastward; The matrix material that proves this repairing pipe has both good fiber wetness and matching simultaneously; Good workability and antiseptic property; Improved the matrix material permanent stability, reliable in quality, excellent combination property are specially adapted to the defect repair of buried metal pipeline.
Claims (6)
1. the matrix material of a repairing defective pipeline is characterized in that it is by earlier the reinforcement putty system of corrosion location reinforcement and the resin system that is covered in again outside it being formed;
Said resin system comprises: epoxy resin, modified aliphatic amine hardener, Versamid solidifying agent, 2,4,6-trisphenol promotor, imidazoles promotor, epoxies reactive thinner, coupling agent, toughner;
Its proportioning is in total amount 100%:
A) epoxy resin accounts for 45-55%;
B) the modified aliphatic amine hardener accounts for 5-15%;
C) the Versamid solidifying agent accounts for 2.5-25%;
D) 2,4,6-trisphenol promotor accounts for 1-2%;
E) imidazoles promotor accounts for 0.5-3.5%;
F) the epoxies reactive thinner accounts for 0-8%;
G) coupling agent accounts for 0-1.5%;
H) toughner accounts for 0-5%;
I) pigment accounts for 0-1%;
Said reinforcement putty system comprises: epoxy resin, modified aliphatic amine hardener, Versamid solidifying agent, 2,4,6-trisphenol promotor, imidazoles promotor, epoxies reactive thinner, coupling agent, glass microballon and alumina mixture;
Its proportioning is in total amount 100%:
A) epoxy resin accounts for 45-55%;
B) modified fatty amine curing agent accounts for 2.5-15%;
C) the Versamid solidifying agent accounts for 2.5-30%;
D) 2,4,6-trisphenol promotor accounts for 0.5-2.5%;
E) imidazoles promotor accounts for 0.5-3.5%;
F) the epoxies reactive thinner accounts for 0-7.5%;
G) coupling agent accounts for 0-1%;
H) glass microballon, alumina mixture account for 10%.
2. according to the matrix material of the said repairing defective pipeline of claim 1, it is characterized in that the Versamid solidifying agent in the said resin system selects 651.
3. according to the matrix material of the said repairing defective pipeline of claim 1, it is characterized in that the coupling agent in the said resin system selects the r-aminopropyltriethoxywerene werene.
4. according to the matrix material of the said repairing defective pipeline of claim 1, it is characterized in that the toughner in the said resin system selects KZ-686.
5. according to the matrix material of the said repairing defective pipeline of claim 1, it is characterized in that the coupling agent of said reinforcement putty system selects the r-aminopropyltriethoxywerene werene.
6. according to the matrix material of the said repairing defective pipeline of claim 1, it is characterized in that the Versamid solidifying agent in the said reinforcement putty system selects 651.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009100845384A CN101885898B (en) | 2009-05-15 | 2009-05-15 | Composite material for repairing defective pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100845384A CN101885898B (en) | 2009-05-15 | 2009-05-15 | Composite material for repairing defective pipeline |
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| Publication Number | Publication Date |
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| CN101885898A CN101885898A (en) | 2010-11-17 |
| CN101885898B true CN101885898B (en) | 2012-01-11 |
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| CN2009100845384A Active CN101885898B (en) | 2009-05-15 | 2009-05-15 | Composite material for repairing defective pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494213A (en) * | 2014-12-15 | 2015-04-08 | 中国石油天然气股份有限公司 | Protective material for joint coating of outer erosion resistant layer of pipeline |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241909A (en) * | 2011-06-02 | 2011-11-16 | 淄博应强化工科技有限公司 | Repair putty for turbine blade of wind generating set and preparation method thereof |
| CN102260425A (en) * | 2011-06-17 | 2011-11-30 | 江苏普兰纳涂料有限公司 | High-performance epoxy grout for megawatt-level wind turbine blades and preparation method thereof |
| CN104387726A (en) * | 2014-11-21 | 2015-03-04 | 芜湖市宝艺游乐科技设备有限公司 | Epoxy-resin composite material capable of releasing far infrared rays and preparation method thereof |
| CN104530641B (en) * | 2014-12-15 | 2017-07-07 | 中国石油天然气股份有限公司 | A kind of pipeline external anti-corrosion layer protective materials |
| CN106118570A (en) * | 2016-08-10 | 2016-11-16 | 大亚(江苏)地板有限公司 | A kind of solid wooden floor board healant and using method thereof |
| CN108546549B (en) * | 2018-05-07 | 2020-07-28 | 谢翠娥 | Preparation method and construction method of casing pipe repairing and reinforcing agent |
| CN108929522A (en) * | 2018-07-27 | 2018-12-04 | 滁州学院 | A kind of composite material and preparation method based on vacuum bag pressure method pipe-repairing |
| CN114045088A (en) * | 2021-12-28 | 2022-02-15 | 国家石油天然气管网集团有限公司 | Preparation method of high-toughness epoxy anticorrosive slurry |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5008309A (en) * | 1989-04-20 | 1991-04-16 | Asmo Co., Ltd. | Balancing putty |
| CN101344208A (en) * | 2008-08-19 | 2009-01-14 | 北京力强基业工程技术有限公司 | Pipe renovation method and its special renovation material system |
-
2009
- 2009-05-15 CN CN2009100845384A patent/CN101885898B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5008309A (en) * | 1989-04-20 | 1991-04-16 | Asmo Co., Ltd. | Balancing putty |
| CN101344208A (en) * | 2008-08-19 | 2009-01-14 | 北京力强基业工程技术有限公司 | Pipe renovation method and its special renovation material system |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2006-219624A 2006.08.24 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494213A (en) * | 2014-12-15 | 2015-04-08 | 中国石油天然气股份有限公司 | Protective material for joint coating of outer erosion resistant layer of pipeline |
| CN104494213B (en) * | 2014-12-15 | 2017-03-08 | 中国石油天然气股份有限公司 | A kind of pipeline external anti-corrosion layer repaired mouth protective materials |
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| CN101885898A (en) | 2010-11-17 |
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Effective date of registration: 20211108 Address after: Room 08-10, 6 / F, block a, No. 5, Dongtucheng Road, Chaoyang District, Beijing 100013 Patentee after: National Petroleum and natural gas pipeline network Group Co.,Ltd. Address before: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee before: PETROCHINA Co.,Ltd. |
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