CN104633377A - High-pressure glass fiber pipeline installation and pipe damage maintenance device and process method - Google Patents
High-pressure glass fiber pipeline installation and pipe damage maintenance device and process method Download PDFInfo
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- CN104633377A CN104633377A CN201310571605.1A CN201310571605A CN104633377A CN 104633377 A CN104633377 A CN 104633377A CN 201310571605 A CN201310571605 A CN 201310571605A CN 104633377 A CN104633377 A CN 104633377A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000012423 maintenance Methods 0.000 title claims abstract description 22
- 239000003365 glass fiber Substances 0.000 title claims abstract description 21
- 238000009434 installation Methods 0.000 title claims abstract description 9
- 230000008569 process Effects 0.000 title abstract description 7
- 239000003292 glue Substances 0.000 claims abstract description 60
- 238000007789 sealing Methods 0.000 claims abstract description 55
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 54
- 239000010959 steel Substances 0.000 claims abstract description 54
- 239000011521 glass Substances 0.000 claims abstract description 40
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 239000010985 leather Substances 0.000 claims description 29
- 230000013011 mating Effects 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 239000000565 sealant Substances 0.000 claims description 12
- 210000002445 nipple Anatomy 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 238000003032 molecular docking Methods 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 8
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 7
- 230000008439 repair process Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000001680 brushing effect Effects 0.000 claims description 4
- 235000014121 butter Nutrition 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 claims description 4
- 238000004088 simulation Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000012790 confirmation Methods 0.000 claims description 2
- 239000011152 fibreglass Substances 0.000 abstract description 3
- 230000001413 cellular effect Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 238000010009 beating Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 241000237858 Gastropoda Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
A high-pressure glass fiber pipeline installation and pipe damage maintenance device and a process method belong to the technical field of pipeline installation and pipe damage maintenance. The fixture is of a double-arc-surface structure and is divided into an upper disc and a lower disc, the upper disc and the lower disc are connected through a strip-shaped clamping lug with a bolt to form a tubular structure, and two sealing joints are fixed in the fixture; the upper and lower discs are respectively provided with a strip-shaped glue injection groove, four mutually connected sealing cavities are formed after buckling, namely two annular sealing cavities at two ends of the clamp and two strip-shaped sealing cavities at the joint surface of the upper and lower discs; for medium and low pressure glass fiber reinforced plastic pipeline, the glue injection groove is 5-10 mm deep and 8-15 mm wide, and for high pressure glass fiber reinforced plastic pipeline, the glue injection groove is 10-20 mm deep and 15-25 mm wide; the joint surface clearance between the upper disc and the lower disc of the fixture is less than 0.1mm, the joint surface clearance between the fixture and the glass steel tube is less than 0.5mm, the glue injection holes are uniformly arranged along the sealing cavity, and the distances between the straight line and the arc line between the two holes are less than 100 mm.
Description
Technical field
The present invention relates to a kind of high-pressure glass fiber pipeline to install and the damaged maintenance unit of pipe and technological method, belong to pipeline and install and the damaged maintenance technique field of pipe.
Background technique
The Connecting format of the high-pressure glass Pressure fiberglass Line (hereinafter referred to as Glass Steel Tube) that Oil Field uses is threaded and Flange joint two kinds.Placement professional standard SY/T6769.1-2010 between Glass Steel Tube, recommendation employing is threaded, Glass Steel Tube is connected with fastener for connection recommendation steel crossover sub, with the connection of valve or steel pipe, recommendation Flange joint. during pipe laying, pipe rotates pipeline according to female end successively towards the direction of medium source, internal and external threads is engaged and tightens; Thread locking adhesive is smeared at screw thread place.This thread connecting mode, when pipeline breakage fracture maintenance, needs the two ends at damaged pipeline, the bonding outside thread of site operation, by steel pipe hoop joint steel pipe respectively, then, by electric welding field joint steel pipe, complete pipeline maintainance operation, there is following shortcoming (disadvantage) in existing maintenance mode: construction sequence is loaded down with trivial details, execution conditions require high, and pipeline fracture requires clean, dry, for part long-distance transport pipes, the exhausting pipeline time is long, and the preparation of construction time is longer; Nonmetal pipe line needs to be connected into metal segments, needs fire operation, meets inflammable and explosive medium, there is fire, risk of explosion.
Compared with steel pipe, glass steel pipeline has corrosion-resistant because of it, and speed of application fast and construction investment such as to lack at the feature, obtains apply more widely at field produces scene; Simultaneously also because the special reparation of its method for maintaining affects the normal production of oil gas field not in time, therefore need to develop with the new method be connected and new process the maintenance of glass steel pipeline and perfect.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of high-pressure glass fiber pipeline to install and the damaged maintenance unit of pipe and technological method, the glass steel pipeline after maintenance connects, performance is not less than former design, realize pipeline maintainance not fire operation, improve the Security of maintenance operation.
For the performance parameter of Glass Steel Tube self and physics, the chemical property of fed sheet of a media, in the bonding special glass steel SEALING FITTING of damaged pipeline two ends difference, coordinate custom-designed metal jig to be connected by pipeline, realized the sealing of pipe joint jig by injecting glue mode
A kind of high-pressure glass fiber pipeline is installed and the damaged maintenance process method of pipe, and step is as follows;
The damaged face cutting of step 1. Glass Steel Tube pipeline;
Excision pipeline damaged portion, make fracture end face neat intact, fracture two ends spacing is not more than 20mm.When pipeline damaged portion is longer, can length kill pipes on request, consider removable parts pipeline, form two fractures.
Step 2. medium water conservancy diversion technique;
In case of to long-distance transport pipes not easily emptying or emptying time long, be shorten the engineering time, medium water conservancy diversion can be implemented.Inflation leather bag with honeycomb duct, gas tube is put into pipeline, air pump is inflated to leather bag by inflation line, leather bag expands, shutoff pipeline, leather bag is stoped outwards to be migrated with rubber seal, make medium diversed to specified position from channelizing line, pipeline fracture can be made to keep clean, dry, possess lower step execution conditions.
Step 3. Glass Steel Tube pipeline end face is repaired;
With making cone device or pipeline fracture two ends are repaired cone angle 1 ° by other special tools respectively-5 ° of male cone (strobilus masculinus)s, wherein h2 is pipeline wall thickness, and h1, for repairing rear reserve part, requires that h1/h2 is not less than 1/2,
Step 4. SEALING FITTING makes;
Same caliber (internal diameter) is with material Glass Steel Tube, and wall thickness increases 10mm and makes long 200mm annular pipe nipple, and side use makes cone device or other special tool in-line walls repair with pipeline male cone (strobilus masculinus) with the inner conical surface of cone angle with length; Opposite side tube wall thins 6mm, prolongs pipeline axially wide 150mm, and end face neat formation docking pipe nipple, sealing joint also can be prefabricated in the factory according to line size.H3 is not less than 10mm; H4 is pipeline internal diameter; H2 is pipeline wall thickness, h5=h2+h3-6mm.
Step 5. adhering and sealing joint;
Cleaning surface of contact, even brushing binder, make it mutually bonding, with heat tape or other heating plant caking faces, heating and temperature control is below 70 DEG C, until binder solidifies completely, pipeline notch two ends SEALING FITTING is bonding complete after, both sides butt joint carries out finishing docking, the neat formation annular groove of interface interface;
Step 6. inner lining protection slips;
Make liner slips (wall thickness 6mm) by annular groove specification, point staggered overlap joint of upper and lower two dish, is stuck on annular groove and is filled and led up.Inner lining protection slips material selection 45# steel.
The manufacture and installation of step 7. seal clamp
Jig is two globoidal structures, point upper dish, lower wall two-part, and upper and lower dish is connected to form tubular structure by the bar clevis ear with bolt, is fixed in jig by two SEALING FITTING; Be designed with bar shaped injecting glue groove in upper and lower dish respectively, forming four Seal cages associated with one another after fastening, is two long strip Seal cages on two annular seal spaces at jig two ends, upper and lower dish mating face respectively.For mesolow glass steel pipeline, injecting glue groove deep 5-10mm, wide 8-15mm, for high-pressure glass fibre reinforced plastic pipe line, injecting glue groove deep 10-20mm, wide 15-25mm.
Mating face gap L EssT.LTssT.LT0.1mm between the upper and lower dish of jig, jig and Glass Steel Tube mating face gap L EssT.LTssT.LT0.5mm, hole for injecting glue is prolonged Seal cage and is evenly arranged, straight line and the equal <100mm of camber line spacing between holes.Seal clamp material selection boilers and pressure vessel steel.The wall thickness of seal clamp is determined according to the rated pressure of glass steel pipeline, and it is qualified for being not less than 1.5 times of pipeline rated pressures at simulation segment seal pressure test pressure.
Selecting of step 8. injecting sealant
Select uncured type injecting sealant, serviceability temperature 0 DEG C-280 DEG C, use pressure <60MPa.
Step 9. injecting glue seal operation method
Before operation, test determines that glass steel pipeline causes the external pressure (critical pressure) of pipeline unstability, and checks that confirmation contacts pipeline section fine status with sealer, adds before injecting sealant (glue rod) uses
Heat is to 90 DEG C-120 DEG C, and during operation, injection pressure controls in less than 70% of pipeline critical pressure, and is not less than pipeline rated pressure.
Seal clamp wraps up by step 10. slip-type plastics gum cover completely, and included butter is anticorrosion.
A kind of high-pressure glass fiber pipeline is installed and the damaged maintenance unit of pipe, its water conservancy diversion pipeline connects inflation leather bag, glass steel pipeline connects inflation leather bag, rubber-stopper circle is connected with between glass steel pipeline and inflation leather bag, inflation line connects gas charging valve and inflation leather bag, and the other end of gas charging valve 4 connects air pump; Glass steel pipeline has cone angle 1 ° of 45 ' male cone (strobilus masculinus); The side of SEALING FITTING has and the inner conical surface of glass steel pipeline male cone (strobilus masculinus) with cone angle; Inner lining protection slips is upper liner slips and lower liner slips, mates with annular groove specification, upper liner slips and the staggered overlap joint of lower liner slips, and upper liner slips is connected with annular groove with lower liner slips; Glass steel pipeline is connected with one end of SEALING FITTING, and the other end of SEALING FITTING is connected with another SEALING FITTING, and the excircle of connection part has annular groove; SEALING FITTING excircle connects upper dish, the lower wall of jig; Jig is two globoidal structures, point upper dish, lower wall two-part, and upper dish, lower wall are connected to form tubular structure by the bar clevis ear with bolt hole, are fixed in jig by two SEALING FITTING; Have bar shaped injecting glue groove in upper dish, lower wall respectively, forming four Seal cages associated with one another after fastening, is two long strip Seal cages on two annular seal spaces at jig two ends, upper dish, lower wall mating face respectively; Upper dish, lower wall circumferentially have hole for injecting glue.
For mesolow glass steel pipeline, bar shaped injecting glue groove deep 5-10mm, wide 8-15mm, for high-pressure glass fibre reinforced plastic pipe line, bar shaped injecting glue groove deep 10-20mm, wide 15-25mm.
Advantage of the present invention is medium water conservancy diversion technique of the present invention, in chance oil field, long-distance transport pipes emptying time is long, or because gate is tight, pipeline cannot completely emptying time, stifled every with residual medium in water conservancy diversion pipeline, pipeline fracture is made to keep clean, dry, so that next-step operation can carry out smoothly, greatly shorten the repair time of pipeline.
The manufacture and installation of pipeline SEALING FITTING; sealing engagement face is made to measure to damaged pipeline; upper button inner lining protection slips; support and protective action can be played to glass steel pipeline, make still can keep certain circularity during pipeline pressurized, outer button Special seal jig; enforcement injecting glue seals; safely, effectively can complete the reparation of the Glass Steel Tube pipeline of different pressures grade, and overcome the shortcoming that Glass Steel Tube is threaded, provide a kind of new pipeline connection and maintenance renovation technique.
The every technical performance index of pipeline after reparation is not less than former pipeline designs.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by referring to detailed description below, more completely can understand the present invention better and easily learn wherein many adjoint advantages, but accompanying drawing described herein is used to provide a further understanding of the present invention, form a part of the present invention, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention, as schemed wherein:
Fig. 1 is the medium water conservancy diversion process schematic representation in the specific embodiment of the invention;
Fig. 2 is the Glass Steel Tube pipeline end face finishing structural representation in the specific embodiment of the invention;
Fig. 3 is the Glass Steel Tube pipeline end face enlarged view in the specific embodiment of the invention;
Fig. 4 is the seal joint structure sectional view in the specific embodiment of the invention;
Fig. 5 is the seal joint structure schematic diagram in the specific embodiment of the invention;
Fig. 6 is the inner lining protection slips schematic diagram in the specific embodiment of the invention;
Fig. 7 is the bonding schematic diagram of SEALING FITTING in the specific embodiment of the invention;
Fig. 8 is the seal clamp scheme of installation in the specific embodiment of the invention;
Fig. 9 is the seal clamp structural representation in the specific embodiment of the invention;
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment
Obviously, the many modifications and variations that those skilled in the art do based on aim of the present invention belong to protection scope of the present invention.
Embodiment 1: a kind of high-pressure glass fiber pipeline is installed and the damaged maintenance unit of pipe, as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9,
Water conservancy diversion pipeline 2 connects inflation leather bag 1, and glass steel pipeline 6 connects inflation leather bag 1, is connected with rubber-stopper circle 7 between glass steel pipeline 6 and inflation leather bag 1, and inflation line 3 connects gas charging valve 4 and inflation leather bag 1, and the other end of gas charging valve 4 connects air pump 5;
Glass steel pipeline 6 has cone angle 1 ° of 45 ' male cone (strobilus masculinus);
The side of SEALING FITTING 8 has and the inner conical surface of glass steel pipeline 6 male cone (strobilus masculinus) with cone angle;
Inner lining protection slips is upper liner slips 9 and lower liner slips 10, mates with annular groove 11 specification, upper liner slips 9 and the staggered overlap joint of lower liner slips 10, and upper liner slips 9 is connected with annular groove 11 with lower liner slips 10;
Glass steel pipeline 6 is connected with one end of SEALING FITTING 8, and the other end of SEALING FITTING 8 is connected with another SEALING FITTING, and the excircle of connection part is annular groove 11;
SEALING FITTING 8 excircle connects upper dish 13, the lower wall 17 of jig;
Jig is two globoidal structures, point upper dish 13, lower wall 17 two-part, and upper dish 13, lower wall 17 are connected to form tubular structure by the bar clevis ear with bolt hole 15, are fixed in jig by two SEALING FITTING 8; Have bar shaped injecting glue groove 12 in upper dish 13, lower wall 17 respectively, forming four Seal cages associated with one another after fastening, is two long strip Seal cages on two annular seal spaces at jig two ends, upper dish 13, lower wall 17 mating face respectively; Upper dish 13, lower wall 17 circumferentially have hole for injecting glue 14; For mesolow glass steel pipeline, bar shaped injecting glue groove 12 groove depth 5-10mm, wide 8-15mm, for high-pressure glass fibre reinforced plastic pipe line, bar shaped injecting glue groove 12 groove depth 10-20mm, wide 15-25mm.
Embodiment 2: a kind of high-pressure glass fiber pipeline is installed and the damaged maintenance unit of pipe,
As shown in Figure 1, water conservancy diversion pipeline 2 connects inflation leather bag 1, and glass steel pipeline 6 connects inflation leather bag 1, is connected with rubber-stopper circle 7 between glass steel pipeline 6 and inflation leather bag 1, inflation line 3 connects gas charging valve 4 and inflation leather bag 1, and the other end of gas charging valve 4 connects air pump 5.
As shown in Figure 2 and Figure 3, pipeline fracture is repaired cone angle 1 ° of 45 ' male cone (strobilus masculinus) with making cone device by glass steel pipeline 6 respectively.Wherein h2 is 7.2mm, h1 is 2.8mm.
As shown in Figure 4, Figure 5, SEALING FITTING 8 is same material Glass Steel Tube, and internal diameter 190.5mm, external diameter 225mm make long 200mm annular pipe nipple, and side repairs and the inner conical surface of pipeline male cone (strobilus masculinus) with cone angle with beating cone device in-line wall; Opposite side tube wall thins 6mm, prolongs pipeline axially wide 150mm, end face neat formation docking pipe nipple, h3=10mm in figure; H4=190.5mm; H5=11.2mm.
As shown in Figure 6, inner lining protection slips is upper liner slips 9 and lower liner slips 10, makes liner slips (wall thickness 6mm, external diameter 225mm) by annular groove 11 specification, and point staggered overlap joint of upper and lower two dish, is stuck on annular groove and is filled and led up; Inner lining protection slips material selection 45# steel.
As shown in Figure 7, glass steel pipeline 6 is connected with one end of SEALING FITTING 8, and the other end of SEALING FITTING 8 is connected with another SEALING FITTING, and the excircle of connection part is annular groove 11, upper liner slips 9 and lower liner slips 10 connecting ring connected in star 11;
As shown in Figure 8, glass steel pipeline 6 is connected with SEALING FITTING 8, and SEALING FITTING 8 excircle connects upper dish 13, the lower wall 17 of jig;
As shown in Figure 9, jig is two globoidal structures, point upper dish 13, lower wall 17 two-part, and upper dish 13, lower wall 17 are connected to form tubular structure by the bar clevis ear with bolt hole 15, are fixed in jig by two SEALING FITTING 8; Have bar shaped injecting glue groove 12 in upper dish 13, lower wall 17 respectively, forming four Seal cages associated with one another after fastening, is two long strip Seal cages on two annular seal spaces at jig two ends, upper dish 13, lower wall 17 mating face respectively; Upper dish 13, lower wall 17 circumferentially have hole for injecting glue 14; For mesolow glass steel pipeline, bar shaped injecting glue groove 12 groove depth 5-10mm, wide 8-15mm, for high-pressure glass fibre reinforced plastic pipe line, bar shaped injecting glue groove 12 groove depth 10-20mm, wide 15-25mm.
Embodiment 3: as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, with 30km5.5MPa, and the long defeated pipe maintenance of glass fibre reinforced plastics of internal diameter 190.5mm, external diameter 205mm is example;
A kind of high-pressure glass fiber pipeline is installed and the damaged maintenance process method of pipe, and step is as follows;
Step one:. the damaged face cutting of Glass Steel Tube pipeline;
Excision pipeline damaged portion, make fracture end face face neat intact, fracture two ends spacing is not more than 20mm.
Step 2: medium water conservancy diversion technique;
For shortening the engineering time, implement medium water conservancy diversion technique.Inflation leather bag with honeycomb duct, gas tube is put into pipeline, air pump is inflated to leather bag by inflation line, leather bag expands, shutoff pipeline, leather bag is stoped outwards to be migrated with rubber seal, make medium diversed to specified position from channelizing line, pipeline fracture can be made to keep clean, dry, possess lower step execution conditions.Inflation leather bag pressurising 1MPa, external diameter 200mm.
Step 3: Glass Steel Tube pipeline damaged face finishing;
With making cone device, pipeline fracture is repaired cone angle 1 ° of 45 ' male cone (strobilus masculinus) respectively.Wherein h2 is 7.2mm, h1 is 2.8mm.
Step 4: SEALING FITTING makes;
With material Glass Steel Tube, internal diameter 190.5mm, external diameter 225mm make long 200mm annular pipe nipple, and side repairs and the inner conical surface of pipeline male cone (strobilus masculinus) with cone angle with beating cone device in-line wall; Opposite side tube wall thins 6mm, prolongs pipeline axially wide 150mm, end face neat formation docking pipe nipple, h3=10mm in figure; H4=190.5mm; H5=11.2mm.
Step 5: adhering and sealing joint;
Cleaning surface of contact, at the even brushing binder of interior male cone (strobilus masculinus), make it mutually bonding, with heat tape or other heating plant caking faces, heating and temperature control is below 70 DEG C, until binder solidifies completely, pipeline notch two ends SEALING FITTING is bonding complete after, both sides butt joint carries out finishing docking, the neat formation annular groove of interface interface.
Step 6: inner lining protection slips;
Make liner slips (wall thickness 6mm, external diameter 225mm) by annular groove specification, point staggered overlap joint of upper and lower two dish, is stuck on annular groove and is filled and led up.Inner lining protection slips material selection 45# steel.
Step 7: the manufacture and installation of seal clamp;
Seal clamp material selection boilers and pressure vessel steel, wall thickness 15mm.With seal clamp after simulation pipeline section realizes injecting glue sealing, quiet clear water pressure testing 16MPa is qualified.
Jig is two globoidal structures, and point upper dish, lower wall two-part, upper and lower dish is connected to form tubular structure by the bar clevis ear with bolt, two SEALING FITTING can be fixed in jig.Bar shaped injecting glue groove is designed with respectively in upper and lower dish, four Seal cages associated with one another are formed after fastening, two annular seal spaces at jig two ends respectively, two long strip Seal cages on upper and lower dish mating face, hole for injecting glue is prolonged Seal cage and is evenly arranged, annular seal space hole for injecting glue distribution employing 8 cellular type, bar shaped Seal cage hole for injecting glue distribution employing 6 cellular type.Injecting glue groove deep 10mm, wide 20mm.
Anchorage clip ear snail bolt, makes mating face gap L EssT.LTssT.LT0.1mm between the upper and lower dish of jig, jig and Glass Steel Tube mating face gap L EssT.LTssT.LT0.5mm.
Step 8: selecting of injecting sealant;
Select uncured type injecting sealant, serviceability temperature 0 DEG C-280 DEG C, use pressure <60MPa.
Step 9: injecting glue seal operation method;
Before operation, test determines that glass steel pipeline causes the external pressure of pipeline unstability (critical pressure) to be greater than 60MPa.Injecting sealant (glue rod) is heated to 90 DEG C-120 DEG C before using, and inject along hole for injecting glue successively, during operation, injecting glue walks glue Stress control at below 30MPa, and after full glue, injection pressure rises to 40MPa and stops note, closes hole for injecting glue with bolt.
Step 10: wrapped up completely by seal clamp with slip-type plastics gum cover, included 5kg butter is anticorrosion.
Embodiment 4: with 5.5MPa, internal diameter 190.5mm, and the glass steel pipeline of external diameter 205mm connects for example;
A kind of high-pressure glass fiber pipeline is installed and the damaged maintenance process method of pipe, and step is as follows;
Step one: Glass Steel Tube pipeline end face is repaired;
With making cone device, pipeline fracture is repaired cone angle 1 ° of 45 ' male cone (strobilus masculinus) respectively.Wherein h2 is 7.2mm, h1 is 2.8mm.
Step 2: SEALING FITTING makes;
With material Glass Steel Tube, internal diameter 190.5mm, external diameter 225mm make long 200mm annular pipe nipple, and side repairs and the inner conical surface of pipeline male cone (strobilus masculinus) with cone angle with beating cone device in-line wall; Opposite side tube wall thins 6mm, prolongs pipeline axially wide 150mm, end face neat formation docking pipe nipple, h3=10mm in figure; H4=190.5mm; H5=11.2mm.
Step 3: adhering and sealing joint;
Cleaning surface of contact, at the even brushing binder of interior male cone (strobilus masculinus), make it mutually bonding, with heat tape or other heating plant caking faces, heating and temperature control is below 70 DEG C, until binder solidifies completely, pipeline notch two ends SEALING FITTING is bonding complete after, both sides butt joint carries out finishing docking, the neat formation annular groove of interface interface.
Step 4: inner lining protection slips;
Make liner slips (wall thickness 6mm, external diameter 225mm) by annular groove specification, point staggered overlap joint of upper and lower two dish, is stuck on annular groove and is filled and led up.Inner lining protection slips material selection 45# steel.
Step 5: the manufacture and installation of seal clamp;
Seal clamp material selection boilers and pressure vessel steel, wall thickness 15mm.With seal clamp after simulation pipeline section realizes injecting glue sealing, quiet clear water pressure testing 16MPa is qualified.
Jig is two globoidal structures, and point upper dish, lower wall two-part, upper and lower dish is connected to form tubular structure by the bar clevis ear with bolt, two SEALING FITTING can be fixed in jig.Bar shaped injecting glue groove is designed with respectively in upper and lower dish, four Seal cages associated with one another are formed after fastening, two annular seal spaces at jig two ends respectively, two long strip Seal cages on upper and lower dish mating face, hole for injecting glue is prolonged Seal cage and is evenly arranged, annular seal space hole for injecting glue distribution employing 8 cellular type, bar shaped Seal cage hole for injecting glue distribution employing 6 cellular type.Injecting glue groove deep 10mm, wide 20mm.
Anchorage clip ear snail bolt, makes mating face gap L EssT.LTssT.LT0.1mm between the upper and lower dish of jig, jig and Glass Steel Tube mating face gap L EssT.LTssT.LT0.5mm.
Step 6: selecting of injecting sealant;
Select uncured type injecting sealant, serviceability temperature 0 DEG C-280 DEG C, use pressure <60MPa.
Step 7: injecting glue seal operation method;
Before operation, test determines that glass steel pipeline causes the external pressure of pipeline unstability (critical pressure) to be greater than 60MPa.Injecting sealant (glue rod) is heated to 90 DEG C-120 DEG C before using, and inject along hole for injecting glue successively, during operation, injecting glue walks glue Stress control at below 30MPa, and after full glue, injection pressure rises to 40MPa and stops note, closes hole for injecting glue with bolt.
Step 8: wrapped up completely by seal clamp with slip-type plastics gum cover, included 5kg butter is anticorrosion.
As mentioned above, embodiments of the invention are explained, but as long as do not depart from inventive point of the present invention in fact and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation is also all included within protection scope of the present invention.
Claims (3)
1. the technological method that high-pressure glass fiber pipeline is installed and pipe breakage is keeped in repair, is characterized in that step is as follows;
The damaged face cutting of step 1. Glass Steel Tube pipeline;
Excision pipeline damaged portion, make fracture end face neat intact, fracture two ends spacing is not more than 20mm; When pipeline damaged portion is longer, can length kill pipes on request, consider removable parts pipeline, form two fractures;
Step 2. medium water conservancy diversion technique;
In case of to long-distance transport pipes not easily emptying or emptying time long, be shorten the engineering time, medium water conservancy diversion can be implemented; Inflation leather bag with honeycomb duct, gas tube is put into pipeline, air pump is inflated to leather bag by inflation line, leather bag expands, shutoff pipeline, leather bag is stoped outwards to be migrated with rubber seal, make medium diversed to specified position from channelizing line, pipeline fracture can be made to keep clean, dry, possess lower step execution conditions;
Step 3. Glass Steel Tube pipeline end face is repaired;
With making cone device or pipeline fracture two ends are repaired cone angle 1 ° by other special tools respectively-5 ° of male cone (strobilus masculinus)s, wherein h2 is pipeline wall thickness, and h1, for repairing rear reserve part, requires that h1/h2 is not less than 1/2,
Step 4. SEALING FITTING makes;
Same caliber (internal diameter) is with material Glass Steel Tube, and wall thickness increases 10mm and makes long 200mm annular pipe nipple, and side use makes cone device or other special tool in-line walls repair with pipeline male cone (strobilus masculinus) with the inner conical surface of cone angle with length; Opposite side tube wall thins 6mm, prolongs pipeline axially wide 150mm, end face neat formation docking pipe nipple, and sealing joint also can be prefabricated in the factory according to line size; H3 is not less than 10mm; H4 is pipeline internal diameter; H2 is pipeline wall thickness, h5=h2+h3-6mm;
Step 5. adhering and sealing joint;
Cleaning surface of contact, even brushing binder, make it mutually bonding, with heat tape or other heating plant caking faces, heating and temperature control is below 70 DEG C, until binder solidifies completely, pipeline notch two ends SEALING FITTING is bonding complete after, both sides butt joint carries out finishing docking, the neat formation annular groove of interface interface;
Step 6. inner lining protection slips;
Make liner slips (wall thickness 6mm) by annular groove specification, point staggered overlap joint of upper and lower two dish, is stuck on annular groove and is filled and led up; Inner lining protection slips material selection 45# steel;
The manufacture and installation of step 7. seal clamp;
Jig is two globoidal structures, point upper dish, lower wall two-part, and upper and lower dish is connected to form tubular structure by the bar clevis ear with bolt, is fixed in jig by two SEALING FITTING; Be designed with bar shaped injecting glue groove in upper and lower dish respectively, forming four Seal cages associated with one another after fastening, is two long strip Seal cages on two annular seal spaces at jig two ends, upper and lower dish mating face respectively; For mesolow glass steel pipeline, injecting glue groove deep 5-10mm, wide 8-15mm, for high-pressure glass fibre reinforced plastic pipe line, injecting glue groove deep 10-20mm, wide 15-25mm;
Mating face gap L EssT.LTssT.LT0.1mm between the upper and lower dish of jig, jig and Glass Steel Tube mating face gap L EssT.LTssT.LT0.5mm, hole for injecting glue is prolonged Seal cage and is evenly arranged, straight line and the equal <100mm of camber line spacing between holes; Seal clamp material selection boilers and pressure vessel steel; The wall thickness of seal clamp is determined according to the rated pressure of glass steel pipeline, and it is qualified for being not less than 1.5 times of pipeline rated pressures at simulation segment seal pressure test pressure;
Selecting of step 8. injecting sealant;
Select uncured type injecting sealant, serviceability temperature 0 DEG C-280 DEG C, use pressure <60MPa;
Step 9. injecting glue seal operation method;
Before operation, test determines that glass steel pipeline causes the external pressure (critical pressure) of pipeline unstability, and check that confirmation contacts pipeline section fine status with sealer, 90 DEG C-120 DEG C are heated to before injecting sealant (glue rod) uses, during operation, injection pressure controls in less than 70% of pipeline critical pressure, and is not less than pipeline rated pressure;
Seal clamp wraps up by step 10. slip-type plastics gum cover completely, and included butter is anticorrosion.
2. a high-pressure glass fiber pipeline is installed and the damaged maintenance unit of pipe, it is characterized in that water conservancy diversion pipeline connects inflation leather bag, glass steel pipeline connects inflation leather bag, rubber-stopper circle is connected with between glass steel pipeline and inflation leather bag, inflation line connects gas charging valve and inflation leather bag, and the other end of gas charging valve 4 connects air pump;
Glass steel pipeline has cone angle 1 ° of 45 ' male cone (strobilus masculinus);
The side of SEALING FITTING has and the inner conical surface of glass steel pipeline male cone (strobilus masculinus) with cone angle;
Inner lining protection slips is upper liner slips and lower liner slips, mates with annular groove specification, upper liner slips and the staggered overlap joint of lower liner slips, and upper liner slips is connected with annular groove with lower liner slips;
Glass steel pipeline is connected with one end of SEALING FITTING, and the other end of SEALING FITTING is connected with another SEALING FITTING, and the excircle of connection part has annular groove;
SEALING FITTING excircle connects upper dish, the lower wall of jig;
Jig is two globoidal structures, point upper dish, lower wall two-part, and upper dish, lower wall are connected to form tubular structure by the bar clevis ear with bolt hole, are fixed in jig by two SEALING FITTING; Have bar shaped injecting glue groove in upper dish, lower wall respectively, forming four Seal cages associated with one another after fastening, is two long strip Seal cages on two annular seal spaces at jig two ends, upper dish, lower wall mating face respectively; Upper dish, lower wall circumferentially have hole for injecting glue.
3. a kind of high-pressure glass fiber pipeline according to claim 2 is installed and the damaged maintenance unit of pipe, it is characterized in that for mesolow glass steel pipeline, bar shaped injecting glue groove deep 5-10mm, wide 8-15mm, for high-pressure glass fibre reinforced plastic pipe line, bar shaped injecting glue groove deep 10-20mm, wide 15-25mm.
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| RU170283U1 (en) * | 2016-08-25 | 2017-04-19 | Сергей Алексеевич Волков | CLUTCH FOR REPAIR OF GLASS PIPES |
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