CN107310167A - A kind of building method of reinforced carbon fiber cloth composite bed and the pipeline crack arrester of application this method - Google Patents
A kind of building method of reinforced carbon fiber cloth composite bed and the pipeline crack arrester of application this method Download PDFInfo
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- CN107310167A CN107310167A CN201710553459.8A CN201710553459A CN107310167A CN 107310167 A CN107310167 A CN 107310167A CN 201710553459 A CN201710553459 A CN 201710553459A CN 107310167 A CN107310167 A CN 107310167A
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- carbon fiber
- cloth
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- pipeline
- fiber cloth
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- 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
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
Abstract
A kind of building method of movable reinforced carbon fiber cloth composite bed and the pipeline crack arrester of application this method.Main purpose be to provide it is a kind of can be to each pipeline crack arrester for having stronger flexible crack arrest effect to crackle on pipeline.It is characterized in that：The reinforced carbon fiber cloth phase layings that there is same shape by least four layers, by binder-impregnated solidify afterwards into reinforced carbon fiber cloth composite bed；There is angle according to sequence alternate from top to bottom between the tension direction of every layer of reinforced carbon fiber cloth, the angular range is 15o~60oBetween；Each angle reinforced carbon fiber cloth is superimposed by least two consistent reinforced carbon fiber cloth of primary fibre direction and constituted；A uncured band without binder-impregnated is left in the stage casing of reinforced carbon fiber cloth composite bed.The crack arrester constructed using this method can effectively prevent the extension of all kinds of crackles of pipeline, realize the flexible crack arrest of pipeline ductile fracture.
Description
Technical field
The present invention relates to pipe-line Fracture Control field, it is directed primarily to a kind of for preventing Hi-grade steel pipe line steel
The device and manufacture method of pipeline ductility crackle long-range extension.
Background technology
Natural gas, as one of most important energy resources of China, is also a kind of inflammable, explosive danger medium, main to rely on
Pipeline carries out long-distance transportation.To reduce the construction investment of pipe engineering, steel using amount is saved, the gas transmission line of various countries is tended to
Use heavy caliber, the high-grade pipe of high intensity.At present, high-strength line-pipe steel also uses extensive in China, such as transfering natural gas from the west to the east two
Oneself uses X80 pipe line steels comprehensively with line, and X90 and X100 are also in development.
Hi-grade steel pipe line steel has more preferable tensile strength, but because its yield tensile ratio is higher, and use thin-walled design, institute more
To there is very high requirement to arrest toughness.Research shows, the ultra high-strength pipeline steel such as X100, X120 under Practical Project environment,
The upper limit of condition often beyond ductile fracture arrest, pipeline is often in the edge ftractureed, gas pipeline once ftracture, and pipe is interior
Gases at high pressure can not be emptied at once, but a decompression wave is respectively produced from breakaway poing to both sides and is propagated to two distal ends.Due to
Gas decompression velocity of wave is less than crack propagation velocity, and the holding high-stress state that crack tip will continue, crackle can also continue
High-speed expansion, is easily caused the long-range scaling problem of gas pipeline ductility crackle, and gas pipeline is generally in ductile fracture feature.And
Ductile fracture is difficult to reach crack arrest by itself first property.When the toughness of pipe line steel itself is it cannot be guaranteed that prevent Ductile crack growth
When, it need to prevent, prevent the ductility crackle of pipeline long using some external mechanical devices, i.e. crack arrester (Crack Arrestor)
Extended distance.
The crack arrester that there is currently has different forms, can be divided into two according to the installation method difference on gas pipeline
Class:Overall crack arrester and non-integral crack arrester.Overall crack arrester is generally by different from main pipeline mechanical property and physical dimension
Heavy wall or high tenacity pipeline section or pipe ring composition, the part as pipeline.Non-integral crack arrester is broadly divided into steel bushing crack arrester
Band crack arrester is wound with fibrous composite.
Being completed the overall crack arrester of installation on pipeline need that pipeline is carried out to cut and weld again, consuming time and warp
Cost of helping is high.
Though steel bushing crack arrester is considered as non-integral crack arrester, its from great, intensity compared to composite compared with
Limitation small and due to its architectural characteristic, can only have preferable crack arrest to act on to axial crack.Because the hardness of steel bushing compares
Greatly, therefore in installation process the secondary damage of pipeline is also easily caused.
It is due to that it is only using single although existing composite crack arrestors have from heavy and light, the advantages of intensity is big
To the structure of carbon cloth multi-lay winding, therefore only there are enough limitations to axial crack and can not preferably control other directions
Crackle, and because its fabrication and installation must all be carried out at the scene, there is very high requirement to construction environment and installation personnel.Peace
Dress process is cumbersome, it is impossible to mass production.
The content of the invention
In order to solve the technical problem being previously mentioned in background technology, the invention provides one kind using novel carbon fiber construction
The pipeline crack arrester of structure and the method for manufacturing this kind of crack arrester, this kind of crack arrester can effectively prevent all kinds of crackles of pipeline
Extension, realizes the flexible crack arrest of pipeline ductile fracture.
The technical scheme is that：
The building method of the reinforced carbon fiber cloth composite bed for making this kind of crack arrester is provided first, and this method is：Will at least
Four layers of reinforced carbon fiber cloth phase laying with same shape, it is compound into reinforced carbon fiber cloth by binder-impregnated solidify afterwards
Layer；There is angle, the angle according to sequence alternate from top to bottom between the tension direction of every layer of reinforced carbon fiber cloth
Scope is 15o~60oBetween；Each angle reinforced carbon fiber cloth is by the consistent reinforced carbon fiber of at least two primary fibre directions
Cloth is superimposed composition.In addition, in order to realize the activity of reinforced carbon fiber cloth composite bed, it is necessary in the reinforced carbon fiber cloth
Leave a uncured band without binder-impregnated in the stage casing of composite bed；Constitute every carbon of every layer of reinforced carbon fiber cloth
The tensile strength of fiber cloth needs to be more than or equal to 3000MPa, and tensile modulus need to be more than or equal to 200GPa.
The structure of pipeline crack arrester is given below：It is laminated with being pasted onto ring-type carbon fiber including ring-type carbon fiber laminate structures
The coat of metal of structural outer surface, it is unique in that：The ring-type carbon fiber laminate structures are used by described above
The reinforced carbon fiber cloth composite bed of method manufacture；
Wherein, the uncured band on ring-type carbon fiber laminate structures is referred to as non-pre-preg solidification band, positioned at ring-type carbon fiber layer
Close the middle part of structure；Coat of metal is made of galvanized iron sheet, is wrapped in the surface of ring-type carbon fiber laminate structures；Ring-type carbon
After fiber laminate structures are bonded with coat of metal, the hollow unclosed cylinder with two enclosed edges as one；The envelope
Side is closed to constitute after carbon fiber laminate structures connect outer rim and coat of metal connection outer rim is connected；The hollow unclosed cylinder
Left and right ends port be groove；The domatic range of tilt angles of the groove is 40oTo 60oBetween.
The method for the tubing road crack arrester that is prefabricated in the factory is given below, this method is made up of following steps：
The first step, selects the polytetrafluoroethylene (PTFE) pipeline mould of same diameter according to the diameter of pipeline first；
Second step, cuts out the different similar shape carbon cloth in tension direction；Every layer of reinforced carbon fiber cloth is necessary to ensure that in reduction
Tension direction between there is angle according to sequence alternate from top to bottom, got up according to different ply stacking angle successively laying；
Wide transparent of 10cm or so is pasted in winding at 3rd step, the uncured band on the carbon fibre cloth layer that second step is obtained
Adhesive tape is to prevent at this by binder-impregnated；
4th step, obtained polytetrafluoroethylene (PTFE) in the first step is wrapped up by the bottom of the multi-storey up-down and translation obtained in the 3rd step
On pipe mould；That extends on carbon cloth uses strip fixture to clamp for the part as connection outer rim；Avoid length
Brushing binding agent is impregnated at strip fixture and adhesive tape；Wait until bottom solidification completion；
5th step, handles layer second from the bottom, and be repeated in the step until outermost layer carbon is fine according to the processing mode of the 4th step
Processed finish of Wei Bu constitutes tubular carbon fiber composite layer conjunction structure；
6th step, structural outer surface brushing binding agent is closed in carbon fiber composite layer, and the painting process is equally avoided being pasted with
That extends on the region of adhesive tape and carbon cloth is used for the part as connection outer rim；
The plating for being used as connection outer rim is stretched out in and two ends identical with tubular carbon fiber composite layer conjunction planform by the 7th step
Zinc-iron plate is wrapped in carbon fiber composite layer and closed in structure；The connection outer rim of galvanized iron sheet is clamped using fixture；
8th step, after after the connection solidification that carbon fiber composite layer is closed between structure and galvanized iron sheet, removes fixture, impregnated carbon
Each layer carbon cloth at scrim cloth connection outer rim, then connects outer rim with being used as the zinc-plated of coat of metal using carbon fibre cloth layer
The connection outer rim of iron plate is sticked to one by bonded adhesives, two enclosed edges above and below composition；
9th step, after total is fully cured, it is removed from polytetrafluoroethylene (PTFE) pipeline mould；Tear adhesive tape；
Drilled using laser in enclosed edge；Length according still further to required pipeline crack arrester is cut.
The present invention has the advantages that：
Between the tension direction of every layer of reinforced carbon fiber cloth in the reinforced carbon fiber cloth composite bed used on this kind of crack arrester ring
There is angle according to sequence alternate from top to bottom, each angle reinforced carbon fiber layer of cloth is by least two primary fibre directions consistent
Reinforced carbon fiber cloth is superimposed composition, so that the tension direction of each layer carbon cloth is different, so to each on pipeline
There is stronger flexible crack arrest effect to crackle, reach the effectiveness for playing carbon cloth maximum limitation crackle ductility extension.So as to
Existing carbon cloth pipeline crack arrester is solved only to the conditional defect of axial crack.
Further, since crack arrester of the present invention is structure as a whole, production and processing is carried out indoors completely, non-by one
Pre-preg solidification band causes the crack arrester to have movable property, and in-site installation is very easy, requires low to construction environment.And should
Crack arrester structure can realize mass production, with relatively low production cost.Crack arrester of the present invention is in ring-type carbon fiber
Laminate structures surface is provided with layer of metal protective layer, and its material is galvanized iron sheet, with hardness is big, intensity is high, corrosion resistance
Good advantage.The coat of metal can preferably protect composite laminated structures not destroyed by external environment.
In summary, this kind of crack arrester is applied to new construction or pipeline of having gone into operation, and with on-line production, does not get angry, simply soon
Prompt the characteristics of, for it is in-service do not stop transport, the Fracture Control that is not depressured conveyance conduit provides a kind of properly effective solution.
Brief description of the drawings：
Fig. 1 is the structure sectional view after pipeline crack arrester of the present invention is installed on pipeline
Fig. 2 is structural representation when pipeline crack arrester of the present invention is not installed.
Fig. 3 is the top view of pipeline crack arrester of the present invention.
Fig. 4 is the schematic diagram for showing uncured region on pipeline crack arrester of the present invention.
Fig. 5 is when it is implemented, the process schematic of multilayer strengthened carbon cloth phase laying.
Fig. 6 is when it is implemented, cutting out the structural representation of the different similar shape carbon cloth in tension direction.
After if the solidification of dried layer similar shape carbon cloth is finished when Fig. 7 is specific implementation, existing various tension directions
Schematic diagram, to replace the angle 45 of angle between tension directionoExemplified by.
1- bolts in figure, 2- clamping plates, 3- coat of metals connection outer rim, 4- carbon fibers laminate structures connection outer rim, 5- rings
Shape carbon fiber laminate structures, the non-pre-preg solidification bands of 6-, 7- coat of metals, 8- connecting holes, 9- grooves, 10- connecting plates, 11-
First layer reinforced carbon fiber layer of cloth, 12- second layer reinforced carbon fiber layer of cloths, 13- third layer reinforced carbon fiber layer of cloths, 14- according to
The uncured reinforced carbon fiber cloth composite bed that different alternating angle layings are completed and cut into after same shape, the non-preimpregnation of 15-
Stain solidifies the line of demarcation of band.
Embodiment：
The invention will be further described below in conjunction with the accompanying drawings：
The building method of the reinforced carbon fiber cloth composite bed for making this kind of crack arrester is provided first, and this method is：Will at least
Four layers of reinforced carbon fiber cloth phase laying with same shape, it is compound into reinforced carbon fiber cloth by binder-impregnated solidify afterwards
Layer；There is angle, the angle according to sequence alternate from top to bottom between the tension direction of every layer of reinforced carbon fiber cloth
Scope is 15o~60oBetween；Each angle reinforced carbon fiber cloth is by the consistent reinforced carbon fiber of at least two primary fibre directions
Cloth is superimposed composition.In addition, in order to realize the activity of reinforced carbon fiber cloth composite bed, it is necessary in the reinforced carbon fiber cloth
Leave a uncured band without binder-impregnated in the stage casing of composite bed；Constitute every carbon fiber of the reinforced carbon fiber cloth
Tensile strength needs >=3000MPa of cloth, tensile modulus needs >=200GPa.
Embodiment can refer to shown in Fig. 5, by first layer reinforced carbon fiber layer of cloth 11, second layer reinforced carbon fiber cloth
Layer 12 and third layer reinforced carbon fiber layer of cloth 13 and other reinforced carbon fiber layer of cloths being arranged in order, from top to bottom laying put
Put, note rotating the angles of next layer of reinforced carbon fiber layer of cloth during laying so that every layer of reinforced carbon fiber cloth it is anti-
There is angle according to sequence alternate from top to bottom between direction in drawing.As shown in figure 5, A, B, C direction sensing is exactly respectively
The tension direction of first, second and third layer of reinforced carbon fiber layer of cloth, there is angle, C directions between A directions and B directions after rotation
There is also angle between B directions.If carbon fibre will be strengthened according to the dried layer with alternately tension angular separation of design requirement
After dimension layer of cloth laying is good, same shape is cut into cutting knife, as shown in fig. 6, then being drawn at the middle part of reinforced carbon fiber cloth cloth cover
The region that two non-pre-preg solidify in the middle of the line of demarcation 15 of band, two lines is just non-pre-preg solidification band 6.
Fig. 7 is the angle 45 when it is implemented, to replace angle between tension directionoExemplified by, if dried layer similar shape carbon is fine
After Wei Bu solidifications are finished, the schematic diagram in existing various tension directions.
As shown in Figures 1 to 4, a kind of structure of the pipeline crack arrester manufactured using above method is given below：This kind is managed
Road crack arrester includes ring-type carbon fiber laminate structures 5 and is pasted onto the coat of metal of the outer surface of ring-type carbon fiber laminate structures 5
7, it is unique in that：The ring-type carbon fiber laminate structures use reinforced carbon fiber cloth composite bed.
Wherein, the uncured band on ring-type carbon fiber laminate structures 5 is referred to as non-pre-preg solidification band 6, positioned at ring-type carbon
The middle part of fiber laminate structures 5；Coat of metal 7 is made of galvanized iron sheet, is wrapped in the table of ring-type carbon fiber laminate structures 5
Face；After ring-type carbon fiber laminate structures 5 are combined with coat of metal 7, do not sealed with two the hollow of enclosed edge 10 as one
Close cylinder；The enclosed edge is constituted after carbon fiber laminate structures connect outer rim 4 and coat of metal connection outer rim 3 is connected；
The port of the left and right ends of the hollow unclosed cylinder is groove 9；The domatic range of tilt angles of the groove exists
40oTo 60oBetween.
The method of manufacture pipeline crack arrester is given below, this method is made up of following steps：
The first step, selects the polytetrafluoroethylene (PTFE) pipeline mould of same diameter according to the diameter of pipeline first；
Second step, cuts out the different similar shape carbon cloth in tension direction；Every layer of reinforced carbon fiber cloth is necessary to ensure that in reduction
Tension direction between there is angle according to sequence alternate from top to bottom, got up according to different ply stacking angle successively laying；
Wide transparent of 10cm or so is pasted in winding at 3rd step, the uncured band on the carbon fibre cloth layer that second step is obtained
Adhesive tape is to prevent at this by binder-impregnated；
4th step, obtained polytetrafluoroethylene (PTFE) in the first step is wrapped up by the bottom of the multi-storey up-down and translation obtained in the 3rd step
On pipe mould；That extends on carbon cloth uses strip fixture to clamp for the part as connection outer rim；Avoid length
Brushing binding agent is impregnated at strip fixture and adhesive tape；Wait until bottom solidification completion；
5th step, handles layer second from the bottom, and be repeated in the step until outermost layer carbon is fine according to the processing mode of the 4th step
Processed finish of Wei Bu constitutes tubular carbon fiber composite layer conjunction structure；
6th step, structural outer surface brushing binding agent is closed in carbon fiber composite layer, and the painting process is equally avoided being pasted with
That extends on the region of adhesive tape and carbon cloth is used for the part as connection outer rim；
The plating for being used as connection outer rim is stretched out in and two ends identical with tubular carbon fiber composite layer conjunction planform by the 7th step
Zinc-iron plate is wrapped in carbon fiber composite layer and closed in structure；The connection outer rim of galvanized iron sheet is clamped using fixture；
8th step, after after the connection solidification that carbon fiber composite layer is closed between structure and galvanized iron sheet, removes fixture, impregnated carbon
Each layer carbon cloth at scrim cloth connection outer rim, then connects outer rim with being used as the zinc-plated of coat of metal using carbon fibre cloth layer
The connection outer rim of iron plate is sticked to one by bonded adhesives, two enclosed edges above and below composition；
9th step, after total is fully cured, it is removed from polytetrafluoroethylene (PTFE) pipeline mould；Tear adhesive tape；
Drilled using laser in enclosed edge；Length according still further to required pipeline crack arrester is cut.
When it is implemented, can be according to the length of crack arrester for pipeline wall thickness 1.5-2.5 times determines.Wherein ring-type carbon fiber
Composite laminated structures thickness is 0.8~3mm, and internal diameter is identical with outer diameter tube, and must not have overgauge.Metal coating thickness
Spend for 3~10mm.
Pasted and be integrated by binding agent between the coat of metal and carbon fiber laminate structures of crack arrester.
Heretofore described dipping solidification glue used is cementing agent A or cementing agent B or cementing agent C, its tensile strength >=
50MPa, shear strength >=10MPa, normal bonding strength MPa >=5MPa.
The formula of the present invention of table 1 cementing agent used
Table 1
The present invention of table 2 uses the mechanical property of alite paste
| Tensile strength MPa | Shear strength MPa | Normal bonding strength MPa |
| ≥50 | ≥10 | ≥5 |
Table 2
The present invention of table 3 uses the hardening time of alite paste
Table 3
With reference to table 3, glue C curing rate is most slow, and use time is most long, available for summer high environment temperature (30oMore than C)
Condition.Glue A, B curing rate are very fast, it is allowed to which the time of operation is most short, the low ambient temperature (5 available for winteroC
Left and right) condition.
The installation method that crack arrester of the present invention is given below is：
Concretely comprise the following steps:
1. determining position and the scope to be wrapped up of crack arrester that need to be constructed, mark is made with chalk.Then carry out surface cleaning,
Polishing, filling-up hole processing；One layer of levelling glue is uniformly brushed in pipeline boundary surface to be onstructed, smooth surface is formed.The present invention with
Alite paste A is levelling glue.
2. carrying out brushing primer again after levelling glue described in step 1 is air-dried, the present invention is using alite paste B as primer.Primer
It should stir in a reservoir.Primer is sprayed after stirring using clean hairbrush, roller or some other mechanical means.Apply
The priming paint brushed on crack arrester should should form uniform film without defects such as holiday, bubble-free, grumeleuse and saggings.Thickness should be big
In or equal to 30 um.
3. after primer is fully cured described in step 2, supporting cementing agent is smeared in pipeline surface to be treated, smear uniform
Afterwards, the non-pre-preg solidification of crack arrester is soaked with interior each layer carbon cloth and ring-type composite connecting plate inner side using cementing agent
Crack arrester, is then wrapped on pending pipeline section by stain（This process should be completed within half an hour）.
4. it is bolted the connecting plate of crack arrester.
The crack arrester is may be used on the pipeline that the pipe line steel of more than X80 ranks is made, because laminate structures are by not Tongfang
To carbon cloth dipping solidification form, there is stronger flexible crack arrest to act on to crackle to each on pipeline.And the crack arrester system
Process and carry out indoors completely, with easily realizing mass production, structure-integrated, easy to install, corrosion-resistant energy
The strong advantage of power.
Claims (4)
1. a kind of building method of movable reinforced carbon fiber cloth composite bed, this method is：To at least four layers has same shape
Reinforced carbon fiber cloth phase laying, by binder-impregnated solidify afterwards into reinforced carbon fiber cloth composite bed；Every layer of reinforcing carbon
There is angle according to sequence alternate from top to bottom between the tension direction of fiber cloth, the angular range is 15o~60oBetween；
Each angle reinforced carbon fiber cloth is superimposed by least two consistent reinforced carbon fiber cloth of primary fibre direction and constituted.
2. a kind of building method of reinforced carbon fiber cloth composite bed according to claim 1, it is characterised in that：Described strong
A uncured band without binder-impregnated is left in the stage casing for changing carbon cloth composite bed, to realize the reinforced carbon fiber cloth
The activity of composite bed；Constitute tensile strength >=3000MPa of every carbon cloth of the reinforcing reinforced carbon fiber layer of cloth, tension
Modulus >=200GPa.
3. a kind of pipeline crack arrester, including ring-type carbon fiber laminate structures（5）With being pasted onto ring-type carbon fiber laminate structures（5）Outside
The coat of metal on surface（7）, it is characterised in that：The ring-type carbon fiber laminate structures are using method described in claim 2
The reinforced carbon fiber cloth composite bed of manufacture；
Wherein, ring-type carbon fiber laminate structures（5）On uncured band be referred to as non-pre-preg solidification band（6）, positioned at ring-type carbon
Fiber laminate structures（5）Middle part；Coat of metal（7）It is made of galvanized iron sheet, is wrapped in ring-type carbon fiber laminate structures
（5）Surface；Ring-type carbon fiber laminate structures（5）With coat of metal（7）With reference to rear, as one with two enclosed edges
（10）Hollow unclosed cylinder；The enclosed edge connects outer rim by carbon fiber laminate structures（4）It is outer with coat of metal connection
Edge（3）Constituted after connection；
The port of the left and right ends of the hollow unclosed cylinder is groove（9）；The domatic range of tilt angles of the groove
40oTo 60oBetween.
4. a kind of method for manufacturing pipeline crack arrester, this method is made up of following steps：
The first step, selects the polytetrafluoroethylene (PTFE) pipeline mould of same diameter according to the diameter of pipeline first；
Second step, cuts out the different similar shape carbon cloth in tension direction；Every layer of reinforced carbon fiber cloth is necessary to ensure that in reduction
Tension direction between there is angle according to sequence alternate from top to bottom, got up according to different ply stacking angle successively laying；
Wide transparent of 10cm or so is pasted in winding at 3rd step, the uncured band on the carbon fibre cloth layer that second step is obtained
Adhesive tape is to prevent at this by binder-impregnated；
4th step, obtained polytetrafluoroethylene (PTFE) in the first step is wrapped up by the bottom of the multi-storey up-down and translation obtained in the 3rd step
On pipe mould；That extends on carbon cloth uses strip fixture to clamp for the part as connection outer rim；Avoid length
Brushing binding agent is impregnated at strip fixture and adhesive tape；Wait until bottom solidification completion；
5th step, handles layer second from the bottom, and be repeated in the step until outermost layer carbon is fine according to the processing mode of the 4th step
Processed finish of Wei Bu constitutes tubular carbon fiber composite layer conjunction structure；
6th step, structural outer surface brushing binding agent is closed in carbon fiber composite layer, and the painting process is equally avoided being pasted with
That extends on the region of adhesive tape and carbon cloth is used for the part as connection outer rim；
The plating for being used as connection outer rim is stretched out in and two ends identical with tubular carbon fiber composite layer conjunction planform by the 7th step
Zinc-iron plate is wrapped in carbon fiber composite layer and closed in structure；The connection outer rim of galvanized iron sheet is clamped using fixture；
8th step, after after the connection solidification that carbon fiber composite layer is closed between structure and galvanized iron sheet, removes fixture, impregnated carbon
Each layer carbon cloth at scrim cloth connection outer rim, then connects outer rim with being used as the zinc-plated of coat of metal using carbon fibre cloth layer
The connection outer rim of iron plate is sticked to one by bonded adhesives, two enclosed edges above and below composition；
9th step, after total is fully cured, it is removed from polytetrafluoroethylene (PTFE) pipeline mould；Tear adhesive tape；
Drilled using laser in enclosed edge；Length according still further to required pipeline crack arrester is cut.
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| CN201710553459.8A CN107310167B (en) | 2017-07-08 | 2017-07-08 | A kind of building method of reinforced carbon fiber cloth composite layer and the pipeline crack arrester of application this method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108673962A (en) * | 2018-03-13 | 2018-10-19 | 华侨大学 | Crack arrest proximate matter |
| CN110566755A (en) * | 2019-08-14 | 2019-12-13 | 中国石油天然气集团有限公司 | design method for glass fiber composite material crack stopper of X100 gas transmission pipeline |
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| JP2006082272A (en) * | 2004-09-14 | 2006-03-30 | Yoshika Kk | Liner for regenerating and repairing existing pipe and its manufacturing method |
| 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 |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006082272A (en) * | 2004-09-14 | 2006-03-30 | Yoshika Kk | Liner for regenerating and repairing existing pipe and its manufacturing method |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108673962A (en) * | 2018-03-13 | 2018-10-19 | 华侨大学 | Crack arrest proximate matter |
| CN108673962B (en) * | 2018-03-13 | 2024-02-27 | 华侨大学 | Crack-stopping section bar |
| CN110566755A (en) * | 2019-08-14 | 2019-12-13 | 中国石油天然气集团有限公司 | design method for glass fiber composite material crack stopper of X100 gas transmission pipeline |
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| Publication number | Publication date |
|---|---|
| CN107310167B (en) | 2019-10-25 |
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