CN102620090A - Connecting structure of three-layer steel-plastic glass fiber composite pipe and connecting method thereof - Google Patents
Connecting structure of three-layer steel-plastic glass fiber composite pipe and connecting method thereof Download PDFInfo
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- CN102620090A CN102620090A CN2012100945651A CN201210094565A CN102620090A CN 102620090 A CN102620090 A CN 102620090A CN 2012100945651 A CN2012100945651 A CN 2012100945651A CN 201210094565 A CN201210094565 A CN 201210094565A CN 102620090 A CN102620090 A CN 102620090A
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Abstract
The invention discloses a connecting structure of a three-layer steel-plastic glass fiber composite pipe and a connecting method thereof. The connecting structure comprises a connecting locking tile and a positioning glass-fiber bushing, wherein steel-pipe ends every two of which are connected with each other are respectively a steel-pipe convex ring, the connecting locking tile is locked onto the two steel-pipe convex rings, and the positioning glass-fiber bushing is wrapped at the outer side of the steel-pipe convex ring. Due to the adoption of the connecting structure, the three-layer steel-plastic glass-fiber composite pipes can be easily and simply butt joined, so that the problems such as corrosion, abrasion, scaling, rapid construction, rapid emergency repair, breakage prevention by external forces and the like of a high-pressure pipeline can be thoroughly solved, a running period of the pipeline is possible to improve to 50 to 100 years, the pipeline is basically free from the later-period maintenance after being constructed, the maintenance expense in the running process can be greatly reduced, and the cost in the running period of the pipeline can be greatly reduced.
Description
Technical field
The present invention relates to composite pipe, specifically a kind of steel is moulded linkage structure of glass three-layer composite pipe and attaching method thereof.
Background technique
Oil field developments such as China's grand celebration, triumph, North China, Central Plains get into the middle and later periods, and water content is bigger, and Shengli Oil Field part block is moisture to reach 95%, the produced-water reinjection stratum after the oil-water separation, and pressure is high and corrosivity is strong, and the steel pipe life cycle is short; Use to annotate polymerizing technology during old filed produces on taping the latent power, obtain gratifying effect, but high pressure polymer injection severe corrosive and abrasion make in the steel pipe anticorrosive coat by quick-wearing very, corrode very fast; Working life is short, has increased development cost, for this reason; Test replaces steel pipe with high-pressure glass fibre reinforced plastic pipe, below 12MPa, has obtained certain progress, has solved etching problem; Can't use because of pipe shaft infiltration under glass fibre reinforced plastics (fiberglass resin) the pipe high pressure but 20MPa is above, Glass Steel Tube resists the outer ability of impacting simultaneously, and anti-water attack property is poor; Difficulty of construction is big, and curing time is long, has caused very big difficulty for pipeline modification and accident maintenance.
In the prior art; The open source literature that can address the above problem comprises following: the patent No. is 200710013071; 200720017449,200720017450 and 200920020636 etc., the described glass fibre resin-immersing composite pipe of above open source literature; Because of internal layer is a metal, be prone to fouling, perishable on engineering, the application; Described polythene glass fibre resin-immersing composite pipe; Annotated to gather in the pipeline at the Shengli Oil Field high pressure and used; Solved extreme pressure (can reach 70MPa) infiltration and corrosion and wear problem, but its construction requirement is high, difficulty is big, joint long influence curing time promoted the use of.
Certainly outside the above-mentioned composite pipe that glass fibre is set steel pipe; People more are to rest on disclosed already steel-plastic composite pipe or plastic-aluminum pipe to the understanding of composite pipe; Be that plastic tube is all to have formed known technology in the outside or the inside of steel pipe; Such as the patent No. is open source literature such as 99112265,99221210,99222235,00256989,01218329,02269391; So people have reason to expect in steel duct plastic tube being set, then at steel pipe outer installment glass fiber resin pipe.
Earlier do not say do not have steel to mould the glass three-layer composite pipe at present; Even if exist; The present even more important problem that needs to solve is the connectivity problem of this three-layer composite pipe; So the linkage structure of necessary this composite pipe of exploitation is technological, to completely newly draw connecting means simultaneously to this composite pipe of this linkage structure.
In view of this, to the problems referred to above, the steel that proposes the above-mentioned disappearance of a kind of effective improvement is moulded linkage structure of glass three-layer composite pipe and attaching method thereof.
Summary of the invention
The object of the present invention is to provide steel to mould linkage structure of glass three-layer composite pipe and attaching method thereof; Extreme pressure infiltration and corrosion and wear problem have been solved; Simply easy during construction; Make the staff easily realize the butt joint of this three-layer composite pipe through linkage structure and new method, eliminated the joint long problem of promoting the use of that influenced curing time that existing technology exists fully.
In order to reach above-mentioned purpose; The invention provides steel and mould the linkage structure of glass three-layer composite pipe; Comprise junction button watt and location glass sleeve; It is the steel pipe bulge loop that said steel is moulded the steel tube head that the glass three-layer composite pipe joins in twos, and said junction button watt is buckled on the two steel pipe bulge loops, and the said steel pipe bulge loop outside is enclosed with location glass sleeve.
The inner plastic tube of said composite pipe is connected to form the plastic tube weld seam through melting welding, has formed the space between said junction button watt, steel pipe bulge loop, the plastic tube weld seam, in this space for filling the fiberglass resin ring.
Junction button watt side between glass fiber resin pipe that said composite pipe is outside and the location glass sleeve is provided with anticorrosion ring plate is integral glass fiber resin pipe and location glass sleeve shape.
Said plastic tube material is the copolymer of high density polyethylene (HDPE) or polypropylene or LLDPE or ethene and acrylic acid copolymer or ethene and vinyl acetate.
In order to reach above-mentioned another purpose, the invention provides the connecting means that steel is moulded the glass three-layer composite pipe, its step is following:
Two sections composite pipes that 1) at first will dock are realized enemy's contact of medial axis coincide type through holding device; The plastic tube of composite pipe internal layer will grow the end face of steel pipe layer; The inner layer plastic tube of joint promptly can connect through melting welding, twines the height formation filling fiberglass resin ring of filling and leading up to the steel pipe bulge loop of steel tube end part with the resin pickup glass then;
2) junction button of a pair of steel watt is buckled on two sections steel pipe bulge loops, will locatees the glass sleeve again and move on a pair of junction button watt, junction button watt locking; Resinize in glass sleeve inboard, said location;
3) two anticorrosion ring plates are sticked on junction button watt two ends, realize that so far steel moulds the firm connection of glass three-layer composite pipe.
Said plastic tube material is the copolymer of high density polyethylene (HDPE) or polypropylene or LLDPE or ethene and acrylic acid copolymer or ethene and vinyl acetate.
Compared to existing technology; The present invention makes steel mould the easily simple butt joint of glass three-layer composite pipe; Thoroughly solve burn into abrasion, fouling and the rapid construction of high pressure pipe line, rush to repair and problem such as anti-outside destroy fast, the operation period of pipeline is hopeful to bring up to 50 ~ 100 years, and after pipeline construction is accomplished, need not carry out the maintaining in later stage basically; Significantly reduced the maintenance cost in the running, the operation period cost of pipeline reduces greatly.
Description of drawings
Fig. 1 moulds the longitudinal section schematic representation of linkage structure when using of glass three-layer composite pipe for steel of the present invention;
Fig. 2 moulds the end view drawing of the linkage structure of glass three-layer composite pipe for steel of the present invention;
Fig. 3 moulds the cross-sectional view of glass three-layer composite pipe for steel.
Among the figure: 1, plastic tube; 2, steel pipe; 3, glass fiber resin pipe; 4, junction button watt; 5, steel pipe bulge loop; 6, fill the fiberglass resin ring; 7, anticorrosion ring plate; 8, plastic tube weld seam; 9, location glass sleeve.
Embodiment
Relevant detailed description of the present invention and technology contents, conjunction with figs. are explained as follows, yet accompanying drawing only provides the usefulness of reference with explanation, are not to be used for the present invention is limited.
According to Fig. 1 and shown in Figure 3, at first need introduce down structure and making method that steel is moulded the glass three-layer composite pipe, structure is followed successively by plastic tube 1, steel pipe 2, glass fiber resin pipe 3 from inside to outside.Its making method is: steel is moulded the making method of glass three-layer composite pipe, and its step is following:
1) forms steel-plastic composite pipe among at first plastic tube being interspersed in steel pipe; Be fixed on steel-plastic composite pipe on the running shaft that twines machinery and make its uniform rotation;
2) startup is sent and is soaked fat glass device, with evenly being wrapped in closely on the outer wall of steel pipe behind the glass fibre multiply immersion resin, send resin pickup glass device at the uniform velocity to do axially reciprocating along the steel-plastic composite pipe of said rotation;
3) glass fiber resin reaches desired thickness and makes it solidify the back through heating and forms the outside glass fiber resin pipe of steel pipe, then integral body is mechanically taken off from twining, and steel is moulded the glass three-layer composite pipe and promptly completed.
The thickness of said glass fiber resin pipe is directly proportional with the diameter of three-layer composite pipe and needed pressure; Wherein thickness is 1-30mm, and the number range 20-1500mm of diameter, three-layer composite pipe bearing capacity are 1-110MPa; Fluid cross-section is directly proportional by axial force under steel pipe thickness and the three-layer composite pipe working pressure; Wherein steel pipe thickness is 2-10mm, and the inner plastic tube thickness is with self diameter and make things convenient for the melting welding degree to be directly proportional, and the inner plastic tube thickness is 2-15mm.Said resin is the mixture of unsaturated polyester resin and curing agent, and unsaturated polyester resin divides resins for universal use, chemically-resistant resin and flexible resin; Unsaturated polyester resin room curing agent is peroxidized t-butyl perbenzoate or methyl-ethyl ketone peroxide; Add the promoter of quickening usefulness in the unsaturated polyester resin solidification process, solidifying temperature is 30-80 ℃, and be 3-20 hours said curing time.Said plastic tube material is the copolymer of high density polyethylene (HDPE) or polypropylene or LLDPE or ethene and acrylic acid copolymer or ethene and vinyl acetate.
According to Fig. 1 and Fig. 2 and shown in Figure 3; Steel is moulded the linkage structure of glass three-layer composite pipe; Comprise junction button watts 4 and location glass sleeve 9; It is steel pipe bulge loop 5 that said steel is moulded the steel tube head that the glass three-layer composite pipe joins in twos, and said junction button watt is buckled on the two steel pipe bulge loops, and the said steel pipe bulge loop outside is enclosed with location glass sleeve 9.The inner plastic tube of said composite pipe is connected to form plastic tube weld seam 8 through melting welding, has formed the space between said junction button watt, steel pipe bulge loop, the plastic tube weld seam, in this space for filling fiberglass resin ring 6.Junction button watt side between glass fiber resin pipe that said composite pipe is outside and the location glass sleeve is provided with anticorrosion ring plate 7 is integral glass fiber resin pipe and location glass sleeve shape.
Said plastic tube material is the copolymer of high density polyethylene (HDPE) or polypropylene or LLDPE or ethene and acrylic acid copolymer or ethene and vinyl acetate.
The invention provides steel and mould the connecting means of glass three-layer composite pipe, its step is following:
Two sections composite pipes that 1) at first will dock are realized enemy's contact of medial axis coincide type through holding device; The plastic tube of composite pipe internal layer will grow the end face of steel pipe layer; The inner layer plastic tube of joint promptly can connect through melting welding, twines the height formation filling fiberglass resin ring of filling and leading up to the steel pipe bulge loop of steel tube end part with the resin pickup glass then;
2) junction button of a pair of steel watt is buckled on two sections steel pipe bulge loops, will locatees the glass sleeve again and move on a pair of junction button watt, junction button watt locking; Resinize in glass sleeve inboard, said location;
3) two anticorrosion ring plates are sticked on junction button watt two ends, realize that so far steel moulds the firm connection of glass three-layer composite pipe.
The above is merely preferred embodiment of the present invention, and non-in order to limit claim of the present invention, other use the equivalence of patent spirit of the present invention to change, and all should all belong to claim of the present invention.
Claims (6)
1. steel is moulded the linkage structure of glass three-layer composite pipe; It is characterized in that; Comprise junction button watt and location glass sleeve; It is the steel pipe bulge loop that said steel is moulded the steel tube head that the glass three-layer composite pipe joins in twos, and said junction button watt is buckled on the two steel pipe bulge loops, and the said steel pipe bulge loop outside is enclosed with location glass sleeve.
2. steel according to claim 1 is moulded the linkage structure of glass three-layer composite pipe; It is characterized in that; The inner plastic tube of said composite pipe is connected to form the plastic tube weld seam through melting welding; Formed the space between said junction button watt, steel pipe bulge loop, the plastic tube weld seam, in this space for filling the fiberglass resin ring.
3. steel according to claim 1 is moulded the linkage structure of glass three-layer composite pipe; It is characterized in that the junction button watt side between glass fiber resin pipe that said composite pipe is outside and the location glass sleeve is provided with anticorrosion ring plate is integral glass fiber resin pipe and location glass sleeve shape.
4. steel according to claim 1 is moulded the linkage structure of glass three-layer composite pipe; It is characterized in that said plastic tube material is the copolymer of high density polyethylene (HDPE) or polypropylene or LLDPE or ethene and acrylic acid copolymer or ethene and vinyl acetate.
5. steel is moulded the connecting means of glass three-layer composite pipe, and its step is following:
Two sections composite pipes that 1) at first will dock are realized enemy's contact of medial axis coincide type through holding device; The plastic tube of composite pipe internal layer will grow the end face of steel pipe layer; The inner layer plastic tube of joint promptly can connect through melting welding, twines the height formation filling fiberglass resin ring of filling and leading up to the steel pipe bulge loop of steel tube end part with the resin pickup glass then;
2) junction button of a pair of steel watt is buckled on two sections steel pipe bulge loops, will locatees the glass sleeve again and move on a pair of junction button watt, junction button watt locking; Resinize in glass sleeve inboard, said location;
3) two anticorrosion ring plates are sticked on junction button watt two ends, realize that so far steel moulds the firm connection of glass three-layer composite pipe.
6. steel according to claim 5 is moulded the connecting means of glass three-layer composite pipe; It is characterized in that said plastic tube material is the copolymer of high density polyethylene (HDPE) or polypropylene or LLDPE or ethene and acrylic acid copolymer or ethene and vinyl acetate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210094565.1A CN102620090B (en) | 2012-04-01 | 2012-04-01 | Attachment structure of glass three-layer composite pipe and attaching method thereof moulded by steel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210094565.1A CN102620090B (en) | 2012-04-01 | 2012-04-01 | Attachment structure of glass three-layer composite pipe and attaching method thereof moulded by steel |
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| CN102620090A true CN102620090A (en) | 2012-08-01 |
| CN102620090B CN102620090B (en) | 2016-06-01 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322364A (en) * | 2013-07-15 | 2013-09-25 | 李晓明 | Connecting device and connecting method of internal and external anti-corrosion plastic-steel composite pipe |
| CN104832706A (en) * | 2015-05-11 | 2015-08-12 | 杭州介通电缆保护管有限公司 | Ultra-large diameter steel-plastic composite pipe butt-joint method in site construction |
| CN105402542A (en) * | 2015-12-18 | 2016-03-16 | 浙江伟星新型建材股份有限公司 | Connecting structure and connecting method for reinforced composite pipes |
| CN103470913B (en) * | 2013-07-05 | 2016-04-27 | 周立超 | The linkage structure of metglass Steel Lining rubber and plastic submerged pipeline and making connecting means |
| CN109442126A (en) * | 2018-11-16 | 2019-03-08 | 中国石油天然气集团有限公司 | A kind of non-metal composite pipe jointing and manufacturing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002333090A (en) * | 2001-03-09 | 2002-11-22 | Sekisui Chem Co Ltd | Connecting method of composite high-pressure pipe and reinforcement member |
| CN101216133A (en) * | 2007-01-03 | 2008-07-09 | 禹扬浩 | Detachable pipe joint |
| CN102062271A (en) * | 2010-06-13 | 2011-05-18 | 龚岳强 | Connection device of full-diameter compressed air conveying pipeline |
| CN202001747U (en) * | 2010-12-22 | 2011-10-05 | 卢志江 | Pipeline joint |
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2012
- 2012-04-01 CN CN201210094565.1A patent/CN102620090B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002333090A (en) * | 2001-03-09 | 2002-11-22 | Sekisui Chem Co Ltd | Connecting method of composite high-pressure pipe and reinforcement member |
| CN101216133A (en) * | 2007-01-03 | 2008-07-09 | 禹扬浩 | Detachable pipe joint |
| CN102062271A (en) * | 2010-06-13 | 2011-05-18 | 龚岳强 | Connection device of full-diameter compressed air conveying pipeline |
| CN202001747U (en) * | 2010-12-22 | 2011-10-05 | 卢志江 | Pipeline joint |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470913B (en) * | 2013-07-05 | 2016-04-27 | 周立超 | The linkage structure of metglass Steel Lining rubber and plastic submerged pipeline and making connecting means |
| CN103322364A (en) * | 2013-07-15 | 2013-09-25 | 李晓明 | Connecting device and connecting method of internal and external anti-corrosion plastic-steel composite pipe |
| CN103322364B (en) * | 2013-07-15 | 2016-01-20 | 李晓明 | The connecting means of internal and external anti-corrosive steel-plastic composite pipe |
| CN104832706A (en) * | 2015-05-11 | 2015-08-12 | 杭州介通电缆保护管有限公司 | Ultra-large diameter steel-plastic composite pipe butt-joint method in site construction |
| CN104832706B (en) * | 2015-05-11 | 2017-04-12 | 杭州介通电缆保护管有限公司 | Ultra-large diameter steel-plastic composite pipe butt-joint method in site construction |
| CN105402542A (en) * | 2015-12-18 | 2016-03-16 | 浙江伟星新型建材股份有限公司 | Connecting structure and connecting method for reinforced composite pipes |
| CN109442126A (en) * | 2018-11-16 | 2019-03-08 | 中国石油天然气集团有限公司 | A kind of non-metal composite pipe jointing and manufacturing method |
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| CN102620090B (en) | 2016-06-01 |
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