CN1616546A - Strengthening carbon fiber composite material and method for repairing defective pipeline - Google Patents
Strengthening carbon fiber composite material and method for repairing defective pipeline Download PDFInfo
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- CN1616546A CN1616546A CN 200410080359 CN200410080359A CN1616546A CN 1616546 A CN1616546 A CN 1616546A CN 200410080359 CN200410080359 CN 200410080359 CN 200410080359 A CN200410080359 A CN 200410080359A CN 1616546 A CN1616546 A CN 1616546A
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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
- F16L55/1683—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of a patch which is fixed on the wall of the pipe by means of an adhesive, a weld or the like
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Abstract
The pipeline repairing and reinforcing material includes repairing glue layer for repairing and leveling the outer pipeline fault; carbon fiber sheet painted or dipped with glue for restoring and raising the bearing strength of the fault part; and anticorrosive material layer for the outer surface. The repairing and reinforcing material of the present invention has specific strength and specific module near that of the metal pipe material, can bear the pressure inside the pipe together with the pipe and reach or even exceed the bearing capacity of the pipe. The present invention may be used in repairing pipeline without stopping conveyance.
Description
Invention field
The present invention relates to resin-based carbon fiber composite defective pipeline, particularly metallic conduit carries out renovation reinforced technology, more specifically, the present invention relates to be used for defective pipeline, particularly contain the renovation reinforced supporting material of defective metallic conduit, this material is a resin-based carbon fiber composite, with described material defect of pipeline is carried out renovation reinforced method, and the application in pipe-line defective renovation reinforced of described material and method.
Background technology
The oil and gas pipes transportation is one of five big transportatioies industry, kilometer surplus only China's oil gas long distance pipeline just reaches 30,000 at present.These pipelines owing to be subjected to effects such as reservoir pressure, soil corrosion, galvanic corrosion, external force damage, cause accidents such as pipeline burst, leakage to take place in the long service process, influence the normal conveying operation of pipeline.Often there are oil and gas pipes explosion and leakage accident to take place both at home and abroad, as 1989, injures and deaths 1024 people of USSR (Union of Soviet Socialist Republics) Ural gas pipe line explosion; The major disaster of 13 kilometers of gas pipe line onepull crackings also once took place in the North America.Lot of site shows that China has entered the multiple phase of accident at the labour gas pipeline more than 60%.Usually, defective pipe-line is when running job, and the way of often taking step-down to carry has so not only influenced normal production operation, and increased running cost greatly.Therefore developing a kind of supporting material and method effective, that be convenient to implement is the target that pursue this area.Outside existing oil and gas pipes, in the defect repair reinforcement technology, mainly contain traditional welding and mend methods such as scar and matrix material reinforcement.Because the danger that burn-through might take place and produce hydrogen embrittlement in the scar process is mended in welding, for the gas transmission line of stopping transportation not, this method is not adopted in general recommendations especially.And polymer matrix composites are used for pipeline strength rehabilitation by external oily company owing to have high-strength light, anticorrosive, good endurance, easy construction, do not influence the excellent specific properties such as outward appearance of structure.As the matrix material reinforcement technology of U.S. Clockspring company, it is to adopt m-phthalic acid type unsaturated polyester and E-glass fibre to be combined into sheet material, adopts dried shop method to be wrapped in the metallic conduit surface, bonds with epoxy adhesive between layer and layer.The shortcoming of this technology has two: the one, in the construction process, can't guarantee fitting tightly between composite sheet and body, composite sheet layer and the layer; Another is that the Young's modulus and the intensity of glass fibre is all lower, and is so the thickness of strengthening course can be thicker, to follow-up anticorrosion certain difficulty that causes, also very limited to the raising degree of matrix supporting capacity.
Some reports about using carbon fiber to carry out the outer damage defect reinforcement of metallic conduit are arranged in recent years, but do not disclose specific embodiment.
Carbon fiber is celebrated greatly with its intensity height, Young's modulus, is suitable for as supporting material used most.The performance that table 1 illustrates carbon cloth, carbon fiber resin composite material and X60 pipe line steel compares.
The performance of table 1 carbon fiber, carbon-fibre composite and X60 pipe line steel relatively
| Tensile strength σ b(MPa) | Yield strength σ s(MPa) | Elastic modulus E (GPa) | Unit elongation δ (%) | |
| Carbon cloth (200g/m 2) | ??3500 | ????235 | ??1.5 | |
| Carbon cloth (300g/m 2) | ??3500 | ????235 | ??1.5 | |
| Resin-based carbon fiber composite | ??≥2500 | ????≥210 | ??≥1.4 | |
| The X60 steel | ????443 | ????207 | ||
| 8 layers of one-way glass cloth compound (Clock Spring company) | ??414 | ????34 | ??1.5-2 | |
| 4 layers of woven fiber glass compound (Furmanite company) | ??203.1-228 | ????12-13 |
As can be seen from Table 1, as supporting material following advantage is arranged with carbon fiber:
1. the Young's modulus of resin-based carbon fiber composite is equal to or greater than 210Gpa, approaching with the Young's modulus 207GPa of steel ten minutes, be very beneficial for the cooperative transformation of carbon-fibre composite and steel, help the uniform distribution of load between steel and carbon-fibre composite, thereby help reaching reinforcing effect.
2. resin-based carbon fiber composite has enough deflections, greater than 1.4%.Generally speaking, the body distortion is much smaller than the deflection of carbon-fibre composite, and using carbon-fibre composite to carry out reinforcement also is enough to insure from the angle of body distortion.
3. the big order of magnitude of the strength ratio glass fibre of carbon fiber reinforcement material, this makes thin carbon-fibre composite just can reach the reinforcing effect that very thick glass fiber-reinforced material just can have.
The object of the invention is to develop and a kind of carbon fiber is used for defective pipeline, the new technique of metallic conduit reinforcement particularly, the specific tenacity of employed supporting material, specific modulus and metal body material are approaching, construction process is easy, and help between supporting material and the body, strengthening course and the layer between fit tightly, it can form one with pipeline, common carrying pipe internal pressure, and make the compound repair layer bearing capacity of final formation meet and exceed the bearing capacity of primitive pipeline.Technology of the present invention can not carried out reinforcement operation under the situation of stopping transportation at pipeline, does not need large-scale mechanical hoisting equipment in the construction process, does not need welding or cutting pipeline, and construction space requires very low, and advantages such as anticorrosive, ageing-resistant are arranged.
Summary of the invention
The purpose of this invention is to provide the renovation reinforced resin-based carbon fiber composite of a kind of defective pipeline that is used for, particularly metallic conduit, described resin-based carbon fiber composite comprises carbon fiber plate and of the present invention resin dedicated.
Another object of the present invention has provided a kind of renovation reinforced supporting material of defective pipeline that is used for, and this material comprises the described resin-based carbon fiber composite of multilayer and is positioned at the outer one layer or more external anticorrosive material of resin-based carbon fiber composite.
Term used herein " pipeline " is meant the pipeline made from various materials, particularly metallic conduit, for example steel pipe.
Term used herein " carbon fiber plate " comprises the carbon fiber plate made from various raw materials, for example carbon cloth.Preferably, its Young's modulus scope of carbon fiber plate used in the present invention is (1.0-3.0) * 10
5MPa, the tensile strength scope is 2500～3500Mpa, and unit elongation δ scope is 0.2-3.0%, and the weight per unit area scope is 200～300g/m
2
Term used herein " resin-based carbon fiber composite " is meant the material after carbon fiber and resin compounded are solidified.
The present invention is used for the renovation reinforced material of defective pipeline and comprises resin-based carbon fiber composite and external anticorrosive material.Described resin-based carbon fiber composite comprises carbon fiber plate and special-purpose assorted resin.
Special-purpose assorted resin of the present invention comprises two kinds of repair sheets and sticking impregnations.Repair sheets are used for the repairing of filling and leading up of the outer damage defect of pipeline; Sticking impregnation is used for the maceration carbon fiber plate, and the bonding between carbon fiber and the body, between the carbon fiber plate.Repair sheets and sticking impregnation can be divided into the winter respectively and use and two kinds of summer grades.Winter can realize by the consumption of adjusting curing catalyst usually with slightly different with the summer grade prescription.When the environment for use temperature reduces, can suitably strengthen the consumption of curing catalyst.Those of ordinary skills are according to the general knowledge of this area, or promptly know under a certain use temperature how to regulate the curing catalyst consumption by simple experiment.
Repair sheets
Repair sheets are made up of first, second two components, and the proportioning of first and second liang of components is 2: 1.
The first component comprises:
(A): the liquid bisphenol A type Resins, epoxy of 30%～50% (weight),
(B): the liquid phenol aldehyde type epoxy resin of 10%～20% (weight)
(C): the aerosil of 5%～10% (weight) and
(wollastonite or the alumina packing of D:35%～40% (weight);
The second component comprises:
(E): the modified amine epoxy hardener of 60%～80% (weight) and
(F): the promotor 2,4 of 20%～40% (weight), 6-three (dimethylamino)-methylphenol;
The solidifying agent of (E) for example can be a modified aliphatic amine in the described second component, for example diethylenetriamine base glycerol n-butyl ether (for example commodity 593) or phenol aldehyde modified polyamine (for example commodity T31).
Constitute defective and fill and lead up first, second two components of repair sheets performance such as the table 1 after mixing cured.
The specification performance of table 2 repair sheets
| Project | Repair sheets | |||
| LX200W (winter is used) | LX200S (summer grade) | |||
| First and second set of dispense ratio | ??2∶1 | ????2∶1 | ||
| Applicable temperature ℃ | ??5～15 | ????15～35 | ||
| Serviceable time (min) | ??30～160 | ????50～210 | ||
| Drying time of finger-touching (hr) | ??3.5～10.0 | ????3.0～10.0 | ||
| Shape | Puttylike nian | |||
| Performance index | Steel steel bonding shear strength (Mpa) | Steel steel adhesive tensile resistance intensity (Mpa) | Colloid ultimate compression strength (Mpa) | |
| ??≥10 | ??/ | ??≥50 | ||
| Main application | Repair the pipe surface defective | |||
Repair sheets can prepare as follows: first, the second component of supporting resin mixed respectively and store, accurately put into container after the weighing to scale before the use, and even with the agitator mix.Once joining the glue amount should be advisable to use up in the serviceable time.
Sticking impregnation
Sticking impregnation is made up of first, second two components, and the proportioning of first and second liang of components is with (3～4): 1 is advisable.
The first component comprises:
(A): the liquid-state epoxy resin of 68%～84% (weight),
(B): the acrylic liquid rubber of 10%～15% (weight),
(C): the aerosil of 5%～15% (weight) and
(D): the pigment of 1%～2% (weight);
The second component comprises:
(E): the modified amine epoxy hardener of 70%～90% (weight) and
(F): the curable epoxide promotor 2,4 of 10%～30% (weight), 6-three (dimethylamino)-methylphenol;
The Resins, epoxy of described first component (A) can be bisphenol A type epoxy resin or vinyl modified epoxy; The solidifying agent of second component (E) can be a modified aliphatic amine, for example diethylenetriamine base glycerol n-butyl ether (for example commodity 593) or phenol aldehyde modified polyamine (for example commodity T31).
Performance such as table 2 after first, second two components of the sticking impregnation of formation are mixing cured.
The specification performance of the sticking impregnation of table 3
| Project | Sticking impregnation | |||||
| LZ300W (winter is used) | LZ300S (summer grade) | |||||
| The proportioning of first and second components | ????(3～4)∶1 | ????(3～4)∶1 | ||||
| Applicable temperature ℃ | ????5～15 | ????15～35 | ||||
| Serviceable time (min) | ????40～170 | ????60～180 | ||||
| Drying time of finger-touching (hr) | ????4.0～12.0 | ????3.0～10.0 | ||||
| Shape | Creaminess | |||||
| Performance index | Tensile strength (Mpa) | Flexural strength (Mpa) | Compressive strength (Mpa) | Steel steel shearing resistance (Mpa) | Young's modulus (Mpa) | |
| ≥30 | ≥40 | ≥50 | ≥10 | ≥2×10 3 | ||
| Main application | Carbon fiber sheet is pasted in brushing steel tube surface, infiltration | |||||
Sticking impregnation can prepare as follows: first, the second component of supporting resin mixed respectively and stores, accurately put into container after the weighing to scale before the use, and even with the agitator mix.Once joining the glue amount should be advisable to use up in the serviceable time.
Concrete, the present invention is used for the renovation reinforced resin-based carbon fiber composite of defective pipeline and comprises following material:
1, is used for the pipe surface defective is filled and led up the repairing glue-line of repairing;
2, multilayer carbon fiber plate, carbon fiber plate brushing wherein sticking impregnation, and make as required that each carbon fiber plate layer is staggered at a certain angle to be laid.
The present invention also provides and has been used for the renovation reinforced supporting material of defective pipeline, this material comprises the described resin-based carbon fiber composite of multilayer, wherein each layer resin-based carbon fiber composite along pipeline radially or hoop place that adjacent two-layer matrix material can be parallel, vertical or staggered at a certain angle the laying.
This supporting material also comprises the multilayer external anticorrosive material that is positioned at outside the resin-based carbon fiber composite.Described external anticorrosive material is identical with the original external anticorrosive material that needs the reinforcement pipeline in principle.External anticorrosive material commonly used is that polyethylene cold twines sealing tape, and described polyethylene glue adhesive tape thickness is advisable with 0.7mm～2.0mm; Tensile strength is advisable greater than 18Mpa.
When practical application, according to the particular case of defect of pipeline, those skilled in the art can be determined thickness, width and the supporting material consumption of strengthening course according to common defective reinforcement Parameters design.
Another object of the present invention provides a kind of usefulness material of the present invention to defective pipeline, particularly contains the defective metallic conduit and carries out renovation reinforced method, and this method has good working security and superior performance.
Another object of the present invention provides the renovation reinforced material and the method for the outer damage defect of a kind of oil and gas pipes, promptly adopts above-described material and method that the outer damage defect of oil and gas pipes is carried out renovation reinforced technology.
, for example the outer damage defect of oil gas metallic conduit is carried out renovation reinforced method and may further comprise the steps pipeline with material of the present invention:
1. pipeline is carried out surface-conditioning;
2. the defective of pipe surface is repaired
With the pipe surface position of caving in, for example fill and lead up with repair sheets near honeycomb, pitted skin, aperture, the weld seam etc., repair to surfacing;
3. wet method affixing carbon fabric
By certain size and number of plies affixing carbon fabric, and as required with each resin-based carbon fiber composite layer along pipeline radially or hoop place, making between the adjacent two-layer matrix material is with parallel, vertical or certain angle is staggered lays.Wherein said carbon cloth brushing or flooded sticking impregnation of the present invention;
4. anticorrosion reparation is carried out in the working district
Twine sealing tape on the carbon-fibre composite surface of pasting with polyethylene cold it is twined protection.
Before implementing this method, must at first carry out surface-conditioning to pipeline, the defective of pipe surface is for example used repair sheets near honeycomb, pitted skin, aperture, the weld seam etc., be that repairing putty is coated with to scrape and fills and leads up, repair to surfacing, still there is concavo-convex rough line in the surface, should be smooth with sand papering.
The method that the stickup of carbon cloth adopts wet method to paste promptly at first with the carbon cloth brushing or flood the sticking impregnation of Resins, epoxy of the present invention, is carried out winding reinforcing with it then.For guaranteeing construction quality, carbon fiber sheet should keep certain-length to overlap joint in length and breadth.
The anticorrosion reparation of working district is carried out should respectively paste the tackiness agent surface drying of face in the reinforcement operation zone after.The lap width of winding layer and former preservative coat should keep certain-length.The sealing tape side seam should be parallel during winding, must not twist fold.
For guaranteeing construction quality, when needs excavate with backfill, should carry out by construction requirement according to the rules.For example fixed defective locations is detected at the scene, must guard personnel's monitoring at the scene and implement the hand excavation down.Note in the digging process measuring buried depth, prevent that ironware from damaging preservative coat and steel pipe.Finish at reinforcing construction, and after confirming that the excavation pipeline section does not have leak source, adopt fine sand or plain soil to carry out the tamping in layers backfill, and the scene is cleared up and recovered the landform original appearance, guarantee that the buried depth of pipeline reaches design requirements.
Below by specific description of embodiments of the present invention, in conjunction with the accompanying drawings material of the present invention and method are given detailed explanation.
Description of drawings
Fig. 1 for explosive bulge test with pipeline and defective synoptic diagram, wherein, defective one is to carry out renovation reinforced position, defective two is to be used to compare and not carry out renovation reinforced position.
Pressure-the time chart of Fig. 2 hydraulic bursting test.
Fig. 3 is the photo of explosive bulge test MR medium reinforcing position pattern.By photo as can be seen under pressure both sides, reinforcement position pipeline swell, and the reinforcement position is without any variation.
Fig. 4 is the photo of embodiment 2 pipelines machinery scratch defects pattern.
Fig. 5 is the cause injury photos of defective pattern of embodiment 2 pipeline external force.
Fig. 6 is the photo of embodiment 2 renovation reinforced back pipeline patterns.
Embodiment
In order further to set forth related material of present technique and construction technology, provided following embodiment.But, the scope that these embodiment do not limit the present invention in any way.
Embodiment 1: with the hydraulic bursting test method technical scheme of the present invention is estimated
In order to check the implementation result of present technique, be example with φ 660 gas transmission pipes, the defect size that the simulation gas pipe line may exist adopts the hydraulic bursting test method that this technology is estimated.Test is seen Fig. 1 with pipe and defective signal, and process of the test is as follows:
(this pipe is the X60 spiral welded tube with the pipe 5.45m that manages same size, material with certain gas transmission line trunk main in intercepting, caliber is 660mm, wall thickness is 8.7mm, and design effort pressure is 6.4Mpa), the two ends end socket shutoff (see figure 2) that leaves venting hole, prosopyle.
The body position that needs reinforcement is cleared up,, and made its surface treatment quality reach the St3 level of stipulating among the GB/T8923-1988 with preservative coat, epoxy coat and the dirt of removal outer tube surface.
Defective (defective one) in that the position that is divested preservative coat makes 50mm * 30mm * 4mm adopts technology of the present invention (referring to embodiment 2) to carry out renovation reinforced to this defective.For ease of the test contrast, a defective (defective two) of having made 50mm * 30mm * 2.0mm at another position of this developmental tube again, this defective is not carried out reinforcement.
Test is carried out the water filling exhaust with pipe, fill with under water and the gastight situation, pressurize step by step, destroy until sample at the inspection sample.Pressure process is seen Fig. 2.This explosive bulge test result shows: destruction is to locate to produce without renovation reinforced little defective (defective two), destroys to be typical tearing mode destruction; Developmental tube has the marked inflation phenomenon, and there is no considerable change through the fault location of reparation, reinforcement, and both sides, reinforcement position developmental tube swells under pressure, produces marked inflation phenomenon (see figure 3); Body burstpressures after the reinforcement is 16.4Mpa, far above the design effort pressure (6.4Mpa) of sample, shows that this technology has reached the purpose of reinforcement.
Embodiment 2: natural gas line defective renovation reinforced
The field conduct example of the technology of the present invention is for being applied to the defective reinforcement example of capital, Shan gas transmission line.Utilize supporting material of the present invention and method for repairing and reinforcing that the defective at this place is carried out reinforcement.Specific implementation process is as follows:
1, excavation and pipeline carried out surface-conditioning
The defect point of reinforcing construction is positioned at section somewhere, pipeline Shaanxi, capital, Shan.This place is positioned at the edge in desert, belongs to the sandy soil structure, and the surface water water layer is more shallow, about buried depth of pipeline 1300mm, and about 40 ℃ of outer surface of tube body temperature.Body has three place's physical abuses.One place is tangible mechanical mark, long 150mm, and dark 3.5mm, the innermost width is the 20mm (see figure 4); Two places are for damaging dark 1.5mm, long 20mm (see figure 5) in addition.
Pipeline is carried out surface-conditioning, and for example the surface-treated result should make the St3 level that basic unit's pretreatment quality is up to state standards and stipulates among the GB/T8923-1988.
2, pipeline is repaired
The steel tube surface defective is for example used repair sheets near honeycomb, pitted skin, aperture, the weld seam etc., promptly repairing putty is coated with to scrape and fills and leads up, and repairs to surfacing, and still there is concavo-convex rough line in the surface, should be smooth with sand papering.The prescription and the consumption of wherein said repair sheets see Table 4.
3, adopt the wet method affixing carbon fabric
At first, carry out winding reinforcing then with the sticking impregnation of the described Resins, epoxy of carbon cloth brushing (consumption of sticking impregnation sees Table 3), and with it by preparation method mentioned above and sticking impregnation of the described formulation of table 3 and repair sheets.
Table 3 supporting material and consumption
| Title material | Form and specification | Proportioning | Consumption | |
| Repair sheets | The first component | 45% bisphenol A type epoxy resin (CYD128, Resins, epoxy factory of Yueyang general petrochemicals factory), 10% phenol aldehyde type epoxy resin (F51), 10% aerosil and 35% alumina packing | First and second components are mixed at 2: 1 | 150g |
| The second component | 70% modified amine epoxy hardener (593) and 30 | |||
| Sticking impregnation | The first component | 80% bisphenol A type epoxy resin (CYD128), 10% acrylic liquid rubber, 8% aerosil, 2% pigment | First and second components are mixed at 3: 1 | 4800g |
| The second component | 75% modified amine epoxy hardener (593) and 25 | |||
| Carbon fiber | Weight per unit area is 300g/m 2Unidirectional lamination, fabric width 330mm or fabric width 500mm | Fabric width 330mm needs 12.9m, and fabric width 500mm needs 3.0m | ||
| The polyethylene glue adhesive tape | Thickness is 1.4mm, fabric width 200mm (central authorities' system is moulded product) | 14.3m | ||
The number of plies that described carbon cloth twines and direction are two layers of hoops, axially one deck, two layers of hoops, axially two layers of one deck and hoops, amount to eight layers.
4, anticorrosion reparation is carried out in the working district
Anticorrosion reparation is carried out should respectively paste the tackiness agent surface drying of face in the reinforcement operation zone after.Employed external anticorrosive material is the polyethylene glue adhesive tape, twines one deck.The lap width of winding layer and former preservative coat should be no less than 100mm.Sealing tape top and end lap length should be no less than 1/4 pipe girth, and are no less than 100mm.The sealing tape side seam should be parallel during winding, must not twist fold.
The pattern of renovation reinforced back pipeline is seen Fig. 6.
The described pipeline section of present embodiment has improved the running cost of pipeline virtually because the existence of this defective is being lower than under the design effort pressure and is moving always; Through this renovation reinforced after, the operation operating pressure can bring up to design level.
In a word, the present invention is a kind of brand-new supporting technology of suitable pipeline rehabilitation reinforcement, is suitable for different tube diameters, owing to burn into machinery or damage pipeline strength rehabilitation that other reason caused.Its construction process need not pipeline stopping production operation, and supporting material can tightly twine pipeline, to the increase influence of self weight of pipeline seldom.It can form one with pipeline, common carrying pipe internal pressure, and make the bearing capacity of repairing the back pipeline meet and exceed the bearing capacity of primitive pipeline.
Below described embodiment of the present invention in detail, can do a lot of improvement and variation obviously for a person skilled in the art and can not deviate from essence spirit of the present invention.All these changes and improvements are all within protection scope of the present invention.
Claims (10)
1. be used for the renovation reinforced resin-based carbon fiber composite of defective pipeline, comprising the carbon fiber plate with sticking impregnation brushing or dipping, described sticking impregnation is made up of first and second liang of components, wherein
The first component comprises:
(A): the liquid-state epoxy resin of 68%～84% (weight),
(B): the acrylic liquid rubber of 10%～15% (weight),
(C): the aerosil of 5%～15% (weight) and
(D): the pigment of 1%～2% (weight);
The second component comprises:
(E): the modified amine epoxy hardener of 70%～90% (weight) and
(F): the curable epoxide promotor 2,4 of 10%～30% (weight), 6-three (dimethylamino)-methylphenol;
Wherein the Resins, epoxy of first component (A) can be bisphenol A type epoxy resin or vinyl modified epoxy; The solidifying agent of second component (E) can be a modified aliphatic amine;
First, second two components are before use with (3～4): 1 ratio agitator uniform mixing.
2. the resin-based carbon fiber composite of claim 1, wherein said material comprise also and are used for the outer defective of pipeline is filled and led up the repair sheets of repairing that described repair sheets are made up of first, second two components, wherein
The first component comprises:
(A): the liquid bisphenol A type Resins, epoxy of 30%～50% (weight),
(B): the liquid phenol aldehyde type epoxy resin of 10%～20% (weight)
(C): the aerosil of 5%～10% (weight) and
(D): the wollastonite of 35%～40% (weight) or alumina packing;
The second component comprises:
(E): the modified amine epoxy hardener of 60%～80% (weight) and
(F): the promotor 2,4 of 20%～40% (weight), 6-three (dimethylamino)-methylphenol;
Wherein the solidifying agent of (E) can be a modified aliphatic amine in the second component;
First, second two components are before use with 2: 1 ratio agitator uniform mixing.
3. claim 1 or 2 resin-based carbon fiber composite, the Young's modulus scope of wherein said carbon fiber plate is (1.0-3.0) * 10
5Mpa, the scope of unit elongation δ is 0.2-3.0%.
4. the resin-based carbon fiber composite of claim 3, wherein said modified aliphatic amine is diethylenetriamine base glycerol n-butyl ether or phenol aldehyde modified polyamine.
5. be used for the renovation reinforced supporting material of defective pipeline, this material comprises any described resin-based carbon fiber composite of multilayer claim 1-4, wherein each layer resin-based carbon fiber composite along pipeline radially or hoop place, adjacent two-layer matrix material can be parallel, vertical or staggered at a certain angle the laying.
6. the described supporting material of claim 5, wherein said supporting material also comprise and are positioned at the outer one layer or more external anticorrosive material of resin-based carbon fiber composite.
7. the supporting material of claim 6, wherein said external anticorrosive material is the polyethylene glue adhesive tape.
8. with any one material of claim 1-7 defective pipeline is carried out renovation reinforced method, this method may further comprise the steps:
(1) with the described repair sheets of claim 2 defective of pipe surface is repaired, it is repaired to surfacing;
(2) wet method is pasted carbon fiber plate
Paste carbon fiber plate by the certain size and the number of plies, described carbon fiber plate brushing the described sticking impregnation of claim 1, or with described sticking impregnation dipping, and make as required each carbon fiber plate layer along pipeline radially or hoop place, adjacent two-layer carbon fiber plate can be parallel, vertical or staggered at a certain angle the laying.
9. according to the method for claim 8, this method also comprises carries out antiseptic step to the working district, and this step is included in the outside surface of having pasted behind the described carbon fiber plate and twines sealing tape by the certain size and the number of plies with polyethylene cold it is twined protection.
10. according to the method for claim 8 or 9, this method needs damage location is carried out surface-conditioning before also being included in pipeline being repaired.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410080359 CN1276024C (en) | 2004-09-30 | 2004-09-30 | Strengthening carbon fiber composite material and method for repairing defective pipeline |
| PCT/CN2005/001607 WO2006034653A1 (en) | 2004-09-30 | 2005-09-29 | Carbon fiber composite for repairing and reinforcing pipelines having defects and the method of application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410080359 CN1276024C (en) | 2004-09-30 | 2004-09-30 | Strengthening carbon fiber composite material and method for repairing defective pipeline |
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| Publication Number | Publication Date |
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| CN1616546A true CN1616546A (en) | 2005-05-18 |
| CN1276024C CN1276024C (en) | 2006-09-20 |
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| CN 200410080359 Expired - Fee Related CN1276024C (en) | 2004-09-30 | 2004-09-30 | Strengthening carbon fiber composite material and method for repairing defective pipeline |
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| CN (1) | CN1276024C (en) |
| WO (1) | WO2006034653A1 (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008086738A1 (en) * | 2007-01-15 | 2008-07-24 | Beijing Safetech Pipeline Co., Ltd. | Enhancing technique for a pressure mechanism by combining pouring the curable polymer under the help of a clamp with a fiber-reinforced composite material |
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| US4824500A (en) * | 1987-11-03 | 1989-04-25 | The Dow Chemical Company | Method for repairing damaged composite articles |
| JP2604778B2 (en) * | 1988-02-04 | 1997-04-30 | 新日鐵化学株式会社 | Matrix resin composition |
| ATE268349T1 (en) * | 1996-02-02 | 2004-06-15 | Toray Industries | RESIN COMPOSITION FOR FIBER REINFORCED COMPOSITES AND METHOD FOR PRODUCING THE SAME, PREPEGS, FIBER REINFORCED COMPOSITES AND HONEYCOMB STRUCTURES |
| DE69829465T2 (en) * | 1997-03-27 | 2006-02-09 | Mitsubishi Rayon Co., Ltd. | EPOXY RESIN COMPOSITION FOR FIBER-REINFORCED PLASTICS, PREPEG, AND TUBE-SHAPED MOLDED BODY MANUFACTURED THEREFROM |
| JPH11343391A (en) * | 1998-05-29 | 1999-12-14 | Nippon Mitsubishi Oil Corp | Resin composition for composite material |
| US6399199B1 (en) * | 1999-12-28 | 2002-06-04 | Toray Industries Inc. | Prepeg and carbon fiber reinforced composite materials |
| CN1425730A (en) * | 2002-11-29 | 2003-06-25 | 国家工业建筑诊断与改造工程技术研究中心 | Method for reinforcing and repairing steel structure using fibre reinforced composite material |
-
2004
- 2004-09-30 CN CN 200410080359 patent/CN1276024C/en not_active Expired - Fee Related
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2005
- 2005-09-29 WO PCT/CN2005/001607 patent/WO2006034653A1/en active Application Filing
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| WO2008086738A1 (en) * | 2007-01-15 | 2008-07-24 | Beijing Safetech Pipeline Co., Ltd. | Enhancing technique for a pressure mechanism by combining pouring the curable polymer under the help of a clamp with a fiber-reinforced composite material |
| CN101204770B (en) * | 2007-01-15 | 2011-07-27 | 北京安科管道工程科技有限公司 | Pressure structure clamp and fiber compound material combined reinforcement technology |
| WO2008089663A1 (en) * | 2007-01-18 | 2008-07-31 | Beijing Safetech Pipeline Co., Ltd. | A method for repairing, reinforcing or enhancing a pipeline by use of basalt fiber composite material |
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| CN105121497A (en) * | 2013-04-26 | 2015-12-02 | 伊诺瓦化学工程公司 | Fast epoxy resin for repairing glazed surfaces by manual lamination |
| CN105121497B (en) * | 2013-04-26 | 2017-11-03 | 阿道夫伍尔特有限两合公司 | The quick epoxy resin of smooth surface is repaired by being laminated manually |
| CN104175058A (en) * | 2014-07-10 | 2014-12-03 | 中国人民解放军理工大学 | Vamp wrapping process for carbon fiber prepreg repaired aluminum alloy crack pipe |
| CN104175058B (en) * | 2014-07-10 | 2017-01-25 | 中国人民解放军理工大学 | Vamp wrapping process for carbon fiber prepreg repaired aluminum alloy crack pipe |
| CN106118002A (en) * | 2016-07-02 | 2016-11-16 | 黄绍华 | A kind of composite repairing material and application thereof and construction method |
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| CN109058648A (en) * | 2018-06-29 | 2018-12-21 | 中国石油天然气集团有限公司 | A method of with composite material to the continuous pipe reinforcement recovery of surface damage |
| CN111102427A (en) * | 2018-10-25 | 2020-05-05 | 中国石油化工股份有限公司 | Method for reinforcing and repairing metal pipeline by using carbon fiber cloth vacuum infusion technology |
| CN110307438A (en) * | 2019-06-12 | 2019-10-08 | 东营市鸿祥石油技术开发有限公司 | Pressure pipe network is not got angry the technique with pressure for creating multiple strong layer |
| CN110307438B (en) * | 2019-06-12 | 2021-05-14 | 东营市鸿祥石油技术开发有限公司 | Process for building strengthening layer under pressure without firing pressure in pressure pipe network |
| WO2021032140A1 (en) * | 2019-08-20 | 2021-02-25 | 北京安科管道工程科技有限公司 | Pre-tightening force repairing method, repairing method involving combination of pre-tightening force and clamp, and repaired pipeline |
| CN112431992A (en) * | 2020-11-19 | 2021-03-02 | 西安热工研究院有限公司 | Pit defect repairing method for oil and gas pipeline |
| CN113025156A (en) * | 2021-02-27 | 2021-06-25 | 中央制塑（天津）有限公司 | Reinforcing material for gas overhead pipeline and construction method |
| WO2023006123A1 (en) * | 2021-07-27 | 2023-02-02 | 上海誉帆环境科技股份有限公司 | Normal-temperature in-situ repair material for drainage pipeline, and construction method therefor |
| CN114292594A (en) * | 2021-12-28 | 2022-04-08 | 国家石油天然气管网集团有限公司 | Preparation method of special pre-curing adhesive for SMC (sheet molding compound) |
| CN114292594B (en) * | 2021-12-28 | 2023-11-24 | 国家石油天然气管网集团有限公司 | Preparation method of special pre-cured adhesive for SMC |
| CN114811261A (en) * | 2022-04-14 | 2022-07-29 | 中国电建集团山东电力建设有限公司 | RTR pipeline forming and repairing construction method |
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| Publication number | Publication date |
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| CN1276024C (en) | 2006-09-20 |
| WO2006034653A1 (en) | 2006-04-06 |
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