CN105465542B - A kind of double end repairing method with welding of glass steel pipeline - Google Patents
A kind of double end repairing method with welding of glass steel pipeline Download PDFInfo
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- CN105465542B CN105465542B CN201610048725.7A CN201610048725A CN105465542B CN 105465542 B CN105465542 B CN 105465542B CN 201610048725 A CN201610048725 A CN 201610048725A CN 105465542 B CN105465542 B CN 105465542B
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- glass steel
- pipe
- steel pipeline
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Classifications
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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
- F16L55/175—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by using materials which fill a space around the pipe before hardening
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a kind of double end repairing method with welding of glass steel pipeline, including by breakage glass steel pipeline pretreatment, repair the pretreatment and the processing of internal and external screw thread thereon of pipe, then glass fabric and composite solution are used, two incision positions for repairing pipe and glass steel pipeline are connected respectively, it will be finally welded to connect between reparation pipe, and stand 8~10 hours normal uses.By the present invention in that being connected respectively with glass steel pipeline both sides gap with pipe is repaired, then repair pipes by two sections and be welded to connect, when solving the problems, such as glass reinforced plastic pipe as filling pipe it is buried in soil, it is irremovable in the case of repairing；Repair pipe and glass steel wire is connected through a screw thread, the use in threaded connection place by composite solution and glass fabric, when solving glass steel pipeline in the case of high pressure and greater impact power, after reparation the problem of cracky, method is simple, reduces rehabilitation cost.
Description
Technical field
The invention belongs to the method for repairing and mending technical field of glass reinforced plastic pipe, and in particular to a kind of double end welding of glass steel pipeline
Method for repairing and mending.
Background technology
Glass reinforced plastic pipe, as a kind of new reinforcing material, hardness, high temperature resistant, erosion-resisting property with glass, again
With steel it is equally hard not broken the characteristics of, have very broad application market.In recent years, with water filling skill in oil exploitation industry
The extensive use of art, in filling pipe selection, glass reinforced plastic pipe turns into a kind of important instrument.
Due to long-term high pressure and stronger water flow impact pressure need to be met during filling pipe use, and as the glass of filling pipe
Glass steel pipe it is buried in soil, can not move, the damaged repair mode of glass reinforced plastic pipe typically has three kinds：First, leak source is smaller, surface
In the case of rule, can use check card son method, this method do not have to stop production, construction is simple is quick, but the scope of application compared with
It is small；Second, its surface damage not usually, is wound using glass fabric, viscous benefit is carried out with composite solution, it is thorough to apply man-hour requirement
Emptying, environmental drying, wind repeatedly and bond composite solution and wait and coagulate 12 hours, but cracky under high pressure after repairing；Third,
In the case that leak source is larger, carries out cutting and change pipe, according to the situation of breakage, the glass steel pipeline of certain length is cut, in pipeline
Both ends carry out frosted, and with winding method connecting pipeline, leak source is also easy to produce, it is necessary to repeatedly repair at such a repairing method connecting pipeline,
Cause rehabilitation cost height.
The content of the invention
It is an object of the invention to provide a kind of double end repairing method with welding of glass steel pipeline, solves glass steel pipeline
In the case of immovable, cracky after reparation, the problem of rehabilitation cost is high.
A kind of double end repairing method with welding of glass steel pipeline of the present invention is the technical scheme adopted is that including following step
Suddenly：
Step 1：External diameter is the pretreatment of Dmm broken glass steel pipeline, and the breakage of broken glass steel pipeline is fallen in interception
Place, disconnects glass steel pipeline and forms independent two sections, two sections of glass steel pipeline outer walls are distinguished from gap to the other end
Polish smooth, the polishing length of the both ends outer wall of glass steel pipeline is no less than 2.3 times of its external diameter；
Repair the selection and pretreatment of pipe, the reparation pipe two that selection internal diameter is Dmm~(D+3) mm, wall thickness is 9mm~12mm
Section, one end of each reparation pipe is subjected to boring using boring machine, repairs the equal boring of internal diameter of pipe to (D+3) mm~(D+4) mm, boring
Cut 1.6 times that length is no less than broken glass steel pipeline external diameter；
Step 2：The processing of pipe is repaired, internal thread and external screw thread will be cut on the reparation pipe in step 1；
Step 3：The outer wall of the glass steel pipeline polished smooth in step 1 is uniformly smeared into composite solution respectively, then
2~4 layers of glass fabric are wound outside composite solution, uniformly smear composite solution again outside glass fabric, are smeared multiple
Close the length of solution and the length of winding glass fabric is no less than 1.3 times of broken glass steel pipeline external diameter；
Step 4：Two sections in selecting step two are repaired pipe, uniformly smear composite solution respectively at its internal thread；
Step 5：The gap both ends that two sections in step 4 are repaired to pipe and the glass steel pipeline in step 3 are nested
Connect, two after socket section repair pipe concordantly and distance between the two is 1mm~2mm, and the length to socket-connect is no less than breakage
1.4 times of glass steel pipeline external diameter；
Step 6：The reparation pipe of two sections of alignment in step 5 is welded；
Step 7：Two socket places of the reparation pipe being mutually socketed in step 6 and glass steel pipeline are uniformly smeared respectively
Composite solution, if then winding dried layer glass fabric outside composite solution, the gross thickness of composite solution and glass fabric
For 8mm~10mm, each socket place smears composite solution and is no less than broken glass steel pipe with winding the length of glass fabric
2.8 times of line external diameter；
Step 8：The reparation pipe and glass steel pipeline that are connected in step 7 are stood 8~10 hours, broken glass steel pipe
The repairing of line is completed.
The features of the present invention also resides in,
The preparation method of composite solution is：It is 30% to take epoxy resin that mass fraction is 50%~70% and mass fraction
~50% W93 epoxy curing agents, are stirred at normal temperatures, be well mixed, the mass fraction of combination of the above thing it is total
With for 100%.
The surface roughness of smooth glass steel pipeline outer wall is 2.5 μm~5 μm in step 1.
The nominal diameter of internal thread in step 2 is (D+4) mm~(D+6) mm, pitch is 1mm~3mm, externally threaded
Nominal diameter is (D+9) mm~(D+12) mm, pitch is 1mm~3mm；Internal thread and externally threaded length are not less than damaged glass
1.4 times of glass steel pipeline external diameter.
Length of the total length of two sections of reparation pipes not less than the glass steel pipeline breakage that interception is fallen in step 1.
Weld bead height when being welded to connect in step 6 is 3mm~5mm.
The beneficial effects of the invention are as follows：A kind of double end repairing method with welding of glass steel pipeline of the present invention by repair pipe with
Glass steel pipeline both sides gap is connected respectively, then two sections of reparation pipes are welded to connect, and solves glass reinforced plastic pipe as note
During waterpipe it is buried in soil, it is irremovable in the case of repairing problem；Repair pipe and glass steel wire is connected through a screw thread,
Threaded connection place is by the use of composite solution and glass fabric, in high pressure and greater impact power when solving glass steel pipeline
In the case of, after reparation the problem of cracky, method is simple, reduces rehabilitation cost.
Embodiment
Below by embodiment, the present invention is described in detail.
Embodiment 1
The preparation of composite solution：Take the epoxy resin that mass fraction is 50% and the W93 asphalt mixtures modified by epoxy resin that mass fraction is 50%
Fat curing agent, is stirred at normal temperatures, is well mixed.
Step 1：Pretreatment to outer diameter D for 150mm broken glass steel pipeline, intercepted length are 570mm with broken
Glass steel pipeline at damage simultaneously makes its disconnection form independent two sections, and two sections of glass steel pipelines are distinguished from gap to the other end
Polish smooth, the roughness for making polishing outer wall is 2.5 μm, and the polishing length of the wherein both ends outer wall of glass steel pipeline is outside it
2.3 times of footpath are 345mm；Glass steel pipeline after grinding process, it is convenient when in use with composite solution, glass fabric it is tight
Closely connected conjunction；
The selection and pretreatment of pipe are repaired, selection internal diameter is 150mm, the reparation pipe two that length 495mm, wall thickness are 9mm
Section, one end of each reparation pipe is subjected to boring, each equal boring of internal diameter for repairing pipe to 153mm, boring length using boring machine
For 1.6 times i.e. 240mm of broken glass steel pipeline external diameter.
Step 2：The processing of pipe is repaired, internal thread and external screw thread, the interior spiral shell of cutting will be cut on the reparation pipe in step 1
The nominal diameter of line is 154mm, pitch 1mm, and the external pressure section mates of cutting are 159mm, pitch 1mm, internal thread and
Externally threaded length is 1.4 times i.e. 210mm of broken glass steel pipeline external diameter；The processing of internal thread makes reparation pipe and breakage
The firm pipeline of glass can increase frictional force after socket, prevent from slipping.
Step 3：The outer wall of the glass steel pipeline polished smooth in step 1 is uniformly smeared into composite solution respectively, then
2 layers of glass fabric are wound outside composite solution, uniformly smear composite solution again outside glass fabric, are smeared compound molten
The length of liquid and the length of winding glass fabric are 1.3 times i.e. 195mm of broken glass steel pipeline external diameter, glass fabric
Use with composite solution can promote to repair pipe and the damaged firm pipeline of glass being brought into close contact in socket.
Step 4：Two sections in selecting step two are repaired pipe, uniformly smear composite solution respectively at its internal thread.
Step 5：The gap both ends for two sections in step 4 being repaired pipe and the glass steel pipeline in step 3 socket-connect,
Reparation pipe is concordant and distance between the two is 1mm for two sections after socket, and the length to socket-connect is no less than broken glass steel pipe
1.4 times of line external diameter are 210mm.
Step 6：The reparation pipe of two sections of alignment in step 5 is welded, weld seam 3mm.
Step 7：Two socket places of the reparation pipe being mutually socketed in step 6 and glass steel pipeline are uniformly smeared respectively
Composite solution, if then winding dried layer glass fabric outside composite solution, wherein smearing composite solution and winding glass fibers
The gross thickness for tieing up cloth is 8mm, and it is broken glass steel that each socket place, which smears composite solution with the length for winding glass fabric,
2.8 times of pipeline external diameter are 420mm；It is socketed after terminating and reuses glass fabric and composite solution in outside, can be effective
Prevent occurring the problems such as slipping, revealing in use.
Step 8：The reparation pipe and glass steel pipeline that are connected in step 7 are stood 8 hours, broken glass steel pipeline
Repairing is completed.
Embodiment 2
The preparation of composite solution：Take the epoxy resin that mass fraction is 60% and the W93 asphalt mixtures modified by epoxy resin that mass fraction is 40%
Fat curing agent, is stirred at normal temperatures, is well mixed.
Step 1：Pretreatment to outer diameter D for 300mm broken glass steel pipeline, intercepted length are carrying for 1200mm
The glass steel pipeline of breakage simultaneously makes its disconnection form independent two sections, and two sections of glass steel pipelines are divided from gap to the other end
Do not polish smooth, the roughness for making polishing outer wall is 4 μm, and the polishing length of the wherein both ends outer wall of glass steel pipeline is outside it
2.5 times of footpath are 750mm；
The selection and pretreatment of pipe are repaired, selection internal diameter is 302mm, the reparation pipe that length 1350mm, wall thickness are 11mm
Two sections, one end of each reparation pipe is subjected to boring, each equal boring of internal diameter for repairing pipe to 303.5mm, boring using boring machine
Length is 1.8 times i.e. 540mm of broken glass steel pipeline external diameter.
Step 2：The processing of pipe is repaired, internal thread and external screw thread, the interior spiral shell of cutting will be cut on the reparation pipe in step 1
The nominal diameter of line is 305mm, pitch 2mm, and the external pressure section mates of cutting are 310mm, pitch 2mm, internal thread and
Externally threaded length is 1.6 times i.e. 480mm of broken glass steel pipeline external diameter.
Step 3：The outer wall of the glass steel pipeline polished smooth in step 1 is uniformly smeared into composite solution respectively, then
3 layers of glass fabric are wound outside composite solution, uniformly smear composite solution again outside glass fabric, are smeared compound molten
The length of liquid and the length of winding glass fabric are 1.5 times i.e. 450mm of broken glass steel pipeline external diameter, glass fabric
Use with composite solution can promote to repair pipe and the damaged firm pipeline of glass being brought into close contact in socket.
Step 4：Two sections in selecting step two are repaired pipe, uniformly smear composite solution respectively at its internal thread.
Step 5：The gap both ends for two sections in step 4 being repaired pipe and the glass steel pipeline in step 3 socket-connect,
Reparation pipe is concordant and distance between the two is 1.5mm for two sections after socket, and the length to socket-connect is no less than broken glass steel
1.6 times of pipeline external diameter are 480mm.
Step 6：The reparation pipe of two sections of alignment in step 5 is welded, weld seam 4mm.
Step 7：Two socket places of the reparation pipe being mutually socketed in step 6 and glass steel pipeline are uniformly smeared respectively
Composite solution, if then winding dried layer glass fabric outside composite solution, wherein smearing composite solution and winding glass fibers
The gross thickness for tieing up cloth is 9mm, and it is broken glass steel that each socket place, which smears composite solution with the length for winding glass fabric,
3 times of pipeline external diameter are 900mm.
Step 8：The reparation pipe and glass steel pipeline that are connected in step 7 are stood 9 hours, broken glass steel pipeline
Repairing is completed.
Embodiment 3
Step 1：Pretreatment to outer diameter D for 400mm broken glass steel pipeline, intercepted length are carrying for 1680mm
The glass steel pipeline of breakage simultaneously makes its disconnection form independent two sections, and two sections of glass steel pipelines are divided from gap to the other end
Do not polish smooth, the roughness for making polishing outer wall is 5 μm, and the polishing length of the wherein both ends outer wall of glass steel pipeline is outside it
2.7 times of footpath are 1080mm；
The selection and pretreatment of pipe are repaired, selection internal diameter is 403mm, the reparation pipe that length 1480mm, wall thickness are 10mm
Two sections, one end of each reparation pipe is subjected to boring using boring machine, each equal boring of internal diameter for repairing pipe to 404mm, boring are grown
Spend for 2 times i.e. 800mm of broken glass steel pipeline external diameter.
Step 2：The processing of pipe is repaired, internal thread and external screw thread, the interior spiral shell of cutting will be cut on the reparation pipe in step 1
The nominal diameter of line is 406mm, pitch 3mm, and the external pressure section mates of cutting are 412mm, pitch 3mm, internal thread and
Externally threaded length is 1.8 times i.e. 720mm of broken glass steel pipeline external diameter.
Step 3：The outer wall of the glass steel pipeline polished smooth in step 1 is uniformly smeared into composite solution respectively, then
4 layers of glass fabric are wound outside composite solution, uniformly smear composite solution again outside glass fabric, are smeared compound molten
The length of liquid and the length of winding glass fabric are 1.7 times i.e. 680mm of broken glass steel pipeline external diameter.
Step 4：Two sections in selecting step two are repaired pipe, uniformly smear composite solution respectively at its internal thread.
Step 5：The gap both ends for two sections in step 4 being repaired pipe and the glass steel pipeline in step 3 socket-connect,
Reparation pipe is concordant and distance between the two is 2mm for two sections after socket, and the length to socket-connect is no less than broken glass steel pipe
1.8 times of line external diameter are 720mm.
Step 6：The reparation pipe of two sections of alignment in step 5 is welded, weld seam 5mm.
Step 7：Two socket places of the reparation pipe being mutually socketed in step 6 and glass steel pipeline are uniformly smeared respectively
Composite solution, if then winding dried layer glass fabric outside composite solution, wherein smearing composite solution and winding glass fibers
The gross thickness for tieing up cloth is 10mm, and it is broken glass steel that each socket place, which smears composite solution with the length for winding glass fabric,
3.2 times of pipeline external diameter are 1280mm.
Step 8：The reparation pipe and glass steel pipeline that are connected in step 7 are stood 10 hours, broken glass steel pipeline
Repairing complete.
By the present invention in that being connected respectively with glass steel pipeline both sides gap with pipe is repaired, then repair pipe by two sections and carry out
Be welded to connect, when solving the problems, such as glass reinforced plastic pipe as filling pipe it is buried in soil, it is irremovable in the case of repairing；Repair
Multiple pipe and glass steel wire are connected through a screw thread, and the use in threaded connection place by composite solution and glass fabric, are solved
During glass steel pipeline in the case of high pressure and greater impact power, after reparation the problem of cracky, method is simple, reduces reparation
Cost.
Claims (6)
1. the double end repairing method with welding of a kind of glass steel pipeline, it is characterised in that comprise the following steps：
Step 1：External diameter is the pretreatment of Dmm broken glass steel pipeline, and interception is fallen the breakage of broken glass steel pipeline, made
Glass steel pipeline is disconnected and forms independent two sections, and two sections of glass steel pipeline outer walls are polished light respectively from gap to the other end
Slide, the polishing length of the both ends outer wall of described glass steel pipeline is no less than 2.3 times of its external diameter；
The selection and pretreatment of reparation pipe, two sections of the reparation pipe that selection internal diameter is Dmm~(D+3) mm, wall thickness is 9mm~12mm,
One end of each reparation pipe is subjected to boring, the described equal boring of internal diameter for repairing pipe to (D+3) mm~(D+4) using boring machine
Mm, boring length are no less than 1.6 times of broken glass steel pipeline external diameter；
Step 2：The processing of pipe is repaired, internal thread and external screw thread will be cut on the reparation pipe described in step 1；
Step 3：The outer wall of two sections of glass steel pipelines polished smooth in step 1 is uniformly smeared into composite solution respectively, then
2~4 layers of glass fabric are wound outside composite solution, composite solution is uniformly smeared again outside glass fabric, exists twice
The length that the length of composite solution is smeared on glass steel pipeline and glass fabric is wound outside composite solution is no less than brokenly
Damage glass steel pipeline external diameter 1.3 times；
Step 4：Two sections in selecting step two are repaired pipe, uniformly smear composite solution respectively at its internal thread；
Step 5：The gap both ends that two sections described in step 4 are repaired to pipe and the glass steel pipeline in step 3 are nested
Connect, two after socket section repair pipe concordantly and distance between the two is 1mm~2mm, and every section is repaired pipe and every section of glass reinforced plastic pipe
The length that line socket-connects is no less than 1.4 times of broken glass steel pipeline external diameter；
Step 6：The reparation pipe of two sections of alignment in step 5 is welded；
Step 7：Two socket places of welded in step 6 two sections of reparation pipes and glass steel pipeline are uniformly smeared respectively compound
Solution, if then winding dried layer glass fabric outside composite solution, the total thickness of described composite solution and glass fabric
Spend and smear composite solution for 8mm~10mm, each socket place and be no less than broken glass steel with winding the length of glass fabric
2.8 times of pipeline external diameter；
Step 8：Pipe is repaired by welded in step 7 two sections and glass steel pipeline stands 8~10 hours, broken glass steel pipe
The repairing of line is completed.
2. the double end repairing method with welding of a kind of glass steel pipeline according to claim 1, it is characterised in that described answers
Closing the preparation method of solution is：It is 30%~50% to take epoxy resin that mass fraction is 50%~70% and mass fraction
W93 epoxy curing agents, are stirred at normal temperatures, are well mixed, the summation of the mass fraction of combination of the above thing is
100%.
3. the double end repairing method with welding of a kind of glass steel pipeline according to claim 1, it is characterised in that in step 1
The surface roughness of the outer wall of every section of glass steel pipeline polished smooth is 2.5 μm~5 μm.
4. the double end repairing method with welding of a kind of glass steel pipeline according to claim 1, it is characterised in that in step 2
The nominal diameter of internal thread for (D+4) mm~(D+6) mm, pitch be 1mm~3mm, described externally threaded nominal diameter is
(D+9) mm~(D+12) mm, pitch are 1mm~3mm；Described internal thread and externally threaded length are not less than broken glass steel
1.4 times of pipeline external diameter.
5. the double end repairing method with welding of a kind of glass steel pipeline according to claim 1, it is characterised in that in step 1
Length of the total length of two sections of reparation pipes not less than the glass steel pipeline breakage that interception is fallen.
6. the double end repairing method with welding of a kind of glass steel pipeline according to claim 1, it is characterised in that in step 6
Weld bead height when being welded to connect be 3mm~5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610048725.7A CN105465542B (en) | 2016-01-25 | 2016-01-25 | A kind of double end repairing method with welding of glass steel pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610048725.7A CN105465542B (en) | 2016-01-25 | 2016-01-25 | A kind of double end repairing method with welding of glass steel pipeline |
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| Publication Number | Publication Date |
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| CN105465542A CN105465542A (en) | 2016-04-06 |
| CN105465542B true CN105465542B (en) | 2017-11-28 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107218471A (en) * | 2017-06-28 | 2017-09-29 | 胜利油田北方实业集团有限责任公司 | A kind of fiber glass epoxy pipeline rapid rush-repair joint and making construction technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE20000514U1 (en) * | 2000-01-13 | 2000-03-23 | Kebulin-Gesellschaft Kettler & Co KG, 45701 Herten | Cover for the welding joint area of buried steel pipes |
| CN100451428C (en) * | 2007-07-13 | 2009-01-14 | 天津市巨星防腐检测工程有限公司 | Method for repairing and reinforcing corrosive pipeline by using multilaminar high strength composite materials |
| CN104633377B (en) * | 2013-11-13 | 2016-10-12 | 中国石油天然气股份有限公司 | High-pressure glass fiber pipeline installation and pipe damage maintenance device and process method |
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