CN104633377B - A kind of high-pressure glass fiber pipeline is installed and pipe breakage maintenance unit and process - Google Patents
A kind of high-pressure glass fiber pipeline is installed and pipe breakage maintenance unit and process Download PDFInfo
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- CN104633377B CN104633377B CN201310571605.1A CN201310571605A CN104633377B CN 104633377 B CN104633377 B CN 104633377B CN 201310571605 A CN201310571605 A CN 201310571605A CN 104633377 B CN104633377 B CN 104633377B
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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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- 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
Abstract
A kind of high-pressure glass fiber pipeline is installed and pipe breakage maintenance unit and process, belongs to pipeline and installs and pipe breakage maintenance technique field.Fixture is double globoidal structures, and point upper dish, lower wall two parts, upper and lower dish is connected to form tubular structure by the bar clevis ear with bolt, is fixed in fixture by two seal nipples；Upper and lower dish is respectively designed with bar shaped injecting glue groove, after fastening, forms associated with one another four annular seal space, be two annular seal spaces at fixture two ends respectively, two strip annular seal spaces on upper and lower dish composition surface；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；< 0.1mm, < 0.5mm, hole for injecting glue prolongs annular seal space and is evenly arranged, straight line and camber line spacing all < 100mm between holes for fixture and gap, glass reinforced plastic pipe composition surface for gap, composition surface between the upper and lower dish of fixture.
Description
Technical field
The present invention relates to a kind of high-pressure glass fiber pipeline installation and pipe breakage maintenance unit and process,
Belong to pipeline to install and pipe breakage maintenance technique field.
Background technology
The type of attachment of the high-pressure glass Pressure fiberglass Line (hereinafter referred to as glass reinforced plastic pipe) that Oil Field uses has
Threaded and Flange joint two kinds.Connected mode industry standard SY/T between glass reinforced plastic pipe
6769.1-2010, it is recommended that use threaded, glass reinforced plastic pipe and fastener for connection recommend steel adapter
Connecting, with valve or the connection of steel pipe, it is recommended to use Flange joint. during pipe laying, pipe is according to interior spiral shell
Stricture of vagina end rotates pipeline successively towards the direction of medium source, makes internal and external threads engagement tighten；Spiral shell is smeared at screw thread
Stricture of vagina fluid sealant.This thread connecting mode, when pipeline breakage fracture maintenance, needs at the two of damaged pipeline
End, the bonding external screw thread of site operation, by steel pipe hoop joint steel pipe respectively, then, passes through electric welding field
Joint steel pipe, completes pipeline maintainance operation, and existing maintenance mode suffers from the drawback that (disadvantage): construction
Complex steps, execution conditions require height, and pipeline fracture requires cleaning, is dried, 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 to get angry
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 is fast and construction investment lacks
Feature, has obtained wide application in production scene, oil field;Simultaneously also because of the special reparation of its method for maintaining
Affect the normal production of oil gas field not in time, it is thus desirable to glass steel pipeline is keeped in repair new be connected
Method and new technology are developed and perfect.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of high-pressure glass fiber pipeline to install and pipe
Damaged maintenance unit and process, the glass steel pipeline after maintenance connection, performance is not less than original design,
Realize pipeline maintainance not fire operation, improve the safety of maintenance activity.
For performance parameter and the physics of pumped (conveying) medium, the chemical property of glass reinforced plastic pipe self, at damaged pipeline
Two ends bonding special glass steel seal nipple respectively, coordinates custom-designed metal fixture to be connected by pipeline, logical
Cross injecting glue mode and realize the sealing of pipe joint fixture,
A kind of high-pressure glass fiber pipeline is installed and pipe breakage maintenance process method, and step is as follows；
Step 1. glass reinforced plastic pipe pipeline breakage face is cut；
Excision pipeline damaged portion, makes fracture end face neat intact, and fracture go-and-retum is away from no more than 20mm.
When pipeline damaged portion is longer, length on request can block pipe, it is considered to removable parts pipeline, be formed
Two fractures.
Step 2. medium water conservancy diversion technique；
As long in long-distance transport pipes being difficult to emptying or emptying time, for shortening the engineering time, medium can be implemented
Water conservancy diversion.To put in pipeline with the inflation leather bag of mozzle, gas tube, air pump is given by inflation line
Leather bag is inflated, and leather bag expands, and blocks pipeline, stops leather bag outwards to be migrated with valve rubber, makes medium from leading
Streamline is diversed to specifying position, pipeline fracture can be made to keep cleaning, be dried, possess lower step execution conditions.
Step 3. glass reinforced plastic pipe pipeline end face is repaired；
With making cone device or other specific purpose tools, pipeline fracture two ends are repaired cone angle 1 ° respectively-5 ° of outer cones
Face, wherein h2 is pipeline wall thickness, and h1 is for repairing rear member-retaining portion, it is desirable to h1/h2 is not less than 1/2,
Step 4. seal nipple makes；
Same caliber (internal diameter) is with material glass reinforced plastic pipe, and wall thickness increases 10mm and makes long 200mm annular pipe nipple,
Side is with making cone device or other specific purpose tool in-line walls repair with pipeline male cone (strobilus masculinus) with cone angle with length
Inner conical surface；Opposite side tube wall thins 6mm, prolongs the widest 150mm of pipeline, and end face is neat forms docking pipe nipple,
This seal nipple 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 contact surface, uniform brushing bonding agent, it is allowed to be mutually bonded, sets with heat tape or other heating
Standby caking face, heating and temperature control is below 70 DEG C, until bonding agent is fully cured, pipeline notch
Two ends seal nipple is bonding complete after, both sides banjo fixing butt jointing carry out finishing docking, the neat shape of interface interface
Circularize groove；
Step 6. liner protection slips；
Liner slips (wall thickness 6mm) is made by annular groove specification, the staggered overlap joint of point upper and lower two dishes,
It is stuck on annular groove and is filled and led up.Liner protection slips material selection 45# steel.
The making of step 7. seal clamp and installation
Fixture is double globoidal structures, and point upper dish, lower wall two parts, upper and lower dish is by the bar shaped with bolt
Folder ear is connected to form tubular structure, is fixed in fixture by two seal nipples；Upper and lower dish sets respectively
In respect of bar shaped injecting glue groove, after fastening, form associated with one another four annular seal space, be the two of fixture two ends respectively
Individual annular seal space, two strip annular seal spaces on upper and lower dish composition surface.For mesolow glass reinforced plastic pipe
Line, 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.
Gap, composition surface between the upper and lower dish of fixture < 0.1mm, fixture and gap, glass reinforced plastic pipe composition surface < 0.5mm,
Hole for injecting glue is prolonged annular seal space and is evenly arranged, straight line and camber line spacing all < 100mm between holes.Seal clamp material
Select boilers and pressure vessel steel.The wall thickness of seal clamp determines according to the rated pressure of glass steel pipeline,
It is qualified for being not less than 1.5 times of pipeline rated pressures at simulation segment seal pressure test pressure.
The selection of step 8. injecting sealant
Select uncured type injecting sealant, use 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
Confirming to contact pipeline section fine status with fluid sealant, injecting sealant (glue stick) adds before using
Heat is to 90 DEG C-120 DEG C, and during operation, injection pressure controls in less than the 70% of pipeline critical pressure, and
Not less than pipeline rated pressure.
Step 10. is fully wrapped around by seal clamp with slip-type plastics gum cover, included butter anticorrosion.
A kind of high-pressure glass fiber pipeline is installed and pipe breakage maintenance unit, and its water conservancy diversion pipeline connects inflation skin
Capsule, glass steel pipeline connects inflation leather bag, and being connected between glass steel pipeline with inflation leather bag has rubber-stopper
Circle, inflation line connects charge valve and inflation leather bag, and the other end of charge valve 4 connects air pump；Fiberglass
Pipeline has 1 ° of 45 ' male cone (strobilus masculinus) of cone angle；The side of seal nipple has with glass steel pipeline male cone (strobilus masculinus) with cone angle
Inner conical surface；Liner protection slips is upper liner slips and lower liner slips, with annular groove specification
Joining, upper liner slips and the staggered overlap joint of lower liner slips, upper liner slips and lower liner slips are recessed with annular
Groove connects；Glass steel pipeline is connected with one end of seal nipple, and the other end of seal nipple is close with another
Sealing joint connects, and the excircle of connecting portion has annular groove；Seal nipple excircle connects the upper of fixture
Dish, lower wall；Fixture is double globoidal structures, point upper dish, lower wall two parts, upper dish, lower wall by with
The bar clevis ear of bolt hole is connected to form tubular structure, is fixed in fixture by two seal nipples；Upper dish,
Lower wall has bar shaped injecting glue groove respectively, after fastening, forms associated with one another four annular seal space, be fixture respectively
Two annular seal spaces at two ends, upper dish, two strip annular seal spaces on lower wall composition surface;Upper dish, under
Hole for injecting glue is had on the circumference of dish.
For mesolow glass steel pipeline, bar shaped injecting glue groove deep 5-10mm, wide 8-15mm, for high pressure
Glass steel pipeline, bar shaped injecting glue groove deep 10-20mm, wide 15-25mm.
It is an advantage of the invention that medium water conservancy diversion technique of the present invention, when meeting oil field long-distance transport pipes and being vented
Between long, or because of when gate is tight, pipeline cannot be vented completely, stifled every remaining medium in water conservancy diversion pipeline,
Pipeline fracture is made to keep cleaning, be dried, in order to next-step operation can be smoothed out, and is greatly shortened pipeline
Repair time.
The making of pipeline seal nipple and installation, make sealing engagement face, upper button liner to measure to damaged pipeline
Protection slips, can play support and protective effect to glass steel pipeline, makes to remain to during pipeline pressurized keep certain
Circularity, outer button Special seal fixture, implement injecting glue seal, can safely, effectively complete different pressures etc.
The reparation of glass reinforced plastic pipe pipeline of level, and overcome the threaded shortcoming of glass reinforced plastic pipe, it is provided that Yi Zhongxin
Pipeline connect install 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, it is possible to be more completely more fully understood that
The present invention and easily learn the advantage that many of which is adjoint, but accompanying drawing described herein is used for providing right
The present invention is further appreciated by, and constitutes the part of the present invention, the illustrative examples of the present invention and saying
Bright it is not intended that inappropriate limitation of the present invention for explaining the present invention, such as figure wherein:
Fig. 1 is the medium water conservancy diversion process schematic representation in the specific embodiment of the invention；
Fig. 2 is the glass reinforced plastic pipe pipeline end face finishing structural representation in the specific embodiment of the invention；
Fig. 3 is the glass reinforced plastic pipe pipeline end face enlarged drawing 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 liner protection slips schematic diagram in the specific embodiment of the invention；
Fig. 7 is the bonding schematic diagram of the seal nipple 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；
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Detailed description of the invention
Obviously, the many modifications and variations that those skilled in the art are done based on spirit of the invention belong to this
Bright protection domain.
Embodiment 1: a kind of high-pressure glass fiber pipeline is installed and pipe breakage maintenance unit, 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, glass steel pipeline
Being connected between 6 with inflation leather bag 1 and have rubber-stopper circle 7, inflation line 3 connects charge valve 4 and inflation skin
Capsule 1, the other end of charge valve 4 connects air pump 5；
Glass steel pipeline 6 has 1 ° of 45 ' male cone (strobilus masculinus) of cone angle；
The side of seal nipple 8 has with glass steel pipeline 6 male cone (strobilus masculinus) with the inner conical surface of cone angle；
Liner protection slips is upper liner slips 9 and lower liner slips 10, with annular groove 11 specification
Coupling, upper liner slips 9 and the staggered overlap joint of lower liner slips 10, upper liner slips 9 and lower liner slips
10 are connected with annular groove 11；
Glass steel pipeline 6 is connected with one end of seal nipple 8, and the other end of seal nipple 8 is close with another
Sealing joint connects, and the excircle of connecting portion is annular groove 11；
Seal nipple 8 excircle connects the upper dish 13 of fixture, lower wall 17；
Fixture is double globoidal structures, and point upper dish 13, lower wall 17 two parts, upper dish 13, lower wall 17 pass through
Bar clevis ear with bolt hole 15 is connected to form tubular structure, and two seal nipples 8 are fixed on fixture
In；Upper dish 13, lower wall 17 have bar shaped injecting glue groove 12 respectively, after fastening, forms associated with one another four
Annular seal space, is two annular seal spaces at fixture two ends respectively, upper dish 13, two of lower wall 17 composition surface
Strip annular seal space;Upper dish 13, lower wall 17 circumference on have hole for injecting glue 14；For mesolow fiberglass
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 pipe breakage maintenance unit,
As it is shown in figure 1, water conservancy diversion pipeline 2 connects inflation leather bag 1, glass steel pipeline 6 connects inflation leather bag 1,
Being connected between glass steel pipeline 6 with inflation leather bag 1 and have rubber-stopper circle 7, inflation line 3 connects charge valve
4 connect air pump 5 with inflation leather bag 1, the other end of charge valve 4.
As shown in Figure 2 and Figure 3, pipeline fracture is repaired cone angle 1 ° with making cone device by glass steel pipeline 6 respectively
45 ' male cone (strobilus masculinus)s.Wherein h2 be 7.2mm, h1 be 2.8mm.
As shown in Figure 4, Figure 5, seal nipple 8 is same material glass reinforced plastic pipe, internal diameter 190.5mm, external diameter
225mm makes long 200mm annular pipe nipple, and side repairs same with pipeline male cone (strobilus masculinus) with beating cone device in-line wall
The inner conical surface of cone angle；Opposite side tube wall thins 6mm, prolongs the widest 150mm of pipeline, and the neat formation of end face is right
Connect pipe nipple, h3=10mm in figure；h4=190.5mm；H5=11.2mm.
As shown in Figure 6, liner protection slips is upper liner slips 9 and lower liner slips 10, recessed by annular
Groove 11 specification makes liner slips (wall thickness 6mm, external diameter 225mm), and point upper and lower two dishes are staggered to be taken
Connect, be stuck on annular groove and filled and led up；Liner protection slips material selection 45# steel.
As it is shown in fig. 7, glass steel pipeline 6 is connected with one end of seal nipple 8, another of seal nipple 8
End is connected with another seal nipple, and the excircle of connecting portion is annular groove 11, upper liner slips 9
Annular groove 11 is connected with lower liner slips 10；
As shown in Figure 8, glass steel pipeline 6 is connected with seal nipple 8, seal nipple 8 excircle Connection Card
The upper dish 13 of tool, lower wall 17；
As it is shown in figure 9, fixture is double globoidal structures, point upper dish 13, lower wall 17 two parts, upper dish 13,
Lower wall 17 is connected to form tubular structure by the bar clevis ear with bolt hole 15, by two seal nipples 8
It is fixed in fixture；Upper dish 13, lower wall 17 have bar shaped injecting glue groove 12 respectively, is formed each other after fastening
Four annular seal spaces being connected, are two annular seal spaces at fixture two ends respectively, and upper dish 13, lower wall 17 connect
Two strip annular seal spaces in conjunction face;Upper dish 13, lower wall 17 circumference on have hole for injecting glue 14；In for
Low pressure glass steel pipeline, bar shaped injecting glue groove 12 groove depth 5-10mm, wide 8-15mm, for high-pressure glass steel
Pipeline, 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,
As a example by keeping in repair with the defeated pipe of fiberglass length of 30km5.5MPa, internal diameter 190.5mm, external diameter 205mm；
A kind of high-pressure glass fiber pipeline is installed and pipe breakage maintenance process method, and step is as follows；
Step one:. glass reinforced plastic pipe pipeline breakage face is cut；
Excision pipeline damaged portion, makes fracture end face face neat intact, and fracture go-and-retum is away from no more than 20mm.
Step 2: medium water conservancy diversion technique；
For shortening the engineering time, implement medium water conservancy diversion technique.By with mozzle, the inflation leather bag of gas tube
Putting in pipeline, air pump is inflated to leather bag by inflation line, and leather bag expands, and blocks pipeline, uses rubber
Pad stops leather bag outwards to be migrated, and makes medium diversed to specifying position from channelizing line, pipeline fracture can be made to protect
Hold cleaning, be dried, possess lower step execution conditions.Inflation leather bag pressurising 1MPa, external diameter 200mm.
Step 3: glass reinforced plastic pipe pipeline breakage face is repaired；
With making cone device, pipeline fracture is repaired respectively 1 ° of 45 ' male cone (strobilus masculinus) of cone angle.Wherein h2 is 7.2mm, h1
For 2.8mm.
Step 4: seal nipple makes；
With material glass reinforced plastic pipe, internal diameter 190.5mm, external diameter 225mm make long 200mm annular pipe nipple, and one
Side repairs with pipeline male cone (strobilus masculinus) with the inner conical surface of cone angle with beating cone device in-line wall；Opposite side tube wall thins
6mm, prolongs the widest 150mm of pipeline, and end face is neat forms docking pipe nipple, h3=10mm in figure；h4=190.5mm；
H5=11.2mm.
Step 5: adhering and sealing joint；
Cleaning contact surface, at interior male cone (strobilus masculinus) uniform brushing bonding agent, is allowed to be mutually bonded, with heat tape or
Other firing equipment caking faces, heating and temperature control is below 70 DEG C, until bonding agent is fully cured,
Pipeline notch two ends seal nipple is bonding complete after, both sides banjo fixing butt jointing carry out finishing docking, interface connects
The neat formation annular groove of mouth.
Step 6: liner protection slips；
Liner slips (wall thickness 6mm, external diameter 225mm) is made, point upper and lower two dishes by annular groove specification
Staggered overlap joint, is stuck on annular groove and is filled and led up.Liner protection slips material selection 45# steel.
Step 7: the making of seal clamp and installation；
Seal clamp material selection boilers and pressure vessel steel, wall thickness 15mm.With seal clamp at simulation pipe
After Duan Shixian injecting glue seals, quiet clear water pressure testing 16MPa is qualified.
Fixture is double globoidal structures, and point upper dish, lower wall two parts, upper and lower dish is by the bar shaped with bolt
Folder ear is connected to form tubular structure, can be fixed in fixture by two seal nipples.In upper and lower dish respectively
It is designed with bar shaped injecting glue groove, after fastening, forms associated with one another four annular seal space, be fixture two ends respectively
Two annular seal spaces, two strip annular seal spaces on upper and lower dish composition surface, it is equal that hole for injecting glue prolongs annular seal space
Even layout, the distribution of annular seal space hole for injecting glue uses 8 cellular types, the distribution employing 6 of bar shaped annular seal space hole for injecting glue
Cellular type.Injecting glue groove deep 10mm, wide 20mm.
Anchorage clip ear snail bolt, makes gap, composition surface < 0.1mm, fixture and glass reinforced plastic pipe between the upper and lower dish of fixture
Gap, composition surface < 0.5mm.
Step 8: the selection of injecting sealant；
Select uncured type injecting sealant, use 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 greatly
In 60MPa.Injecting sealant (glue stick) is heated to 90 DEG C-120 DEG C before using, and notes along hole for injecting glue successively
Entering, during operation, injecting glue walks glue Stress control at below 30MPa, and after full glue, injection pressure rises to 40MPa
Stop note, close hole for injecting glue with bolt.
Step 10: seal clamp is fully wrapped around with slip-type plastics gum cover, included 5kg butter anticorrosion.
Embodiment 4: as a example by connecting with the glass steel pipeline of 5.5MPa, internal diameter 190.5mm, external diameter 205mm；
A kind of high-pressure glass fiber pipeline is installed and pipe breakage maintenance process method, and step is as follows；
Step one: glass reinforced plastic pipe pipeline end face is repaired；
With making cone device, pipeline fracture is repaired respectively 1 ° of 45 ' male cone (strobilus masculinus) of cone angle.Wherein h2 is 7.2mm, h1
For 2.8mm.
Step 2: seal nipple makes；
With material glass reinforced plastic pipe, internal diameter 190.5mm, external diameter 225mm make long 200mm annular pipe nipple, and one
Side repairs with pipeline male cone (strobilus masculinus) with the inner conical surface of cone angle with beating cone device in-line wall；Opposite side tube wall thins
6mm, prolongs the widest 150mm of pipeline, and end face is neat forms docking pipe nipple, h3=10mm in figure；h4=190.5mm；
H5=11.2mm.
Step 3: adhering and sealing joint；
Cleaning contact surface, at interior male cone (strobilus masculinus) uniform brushing bonding agent, is allowed to be mutually bonded, with heat tape or
Other firing equipment caking faces, heating and temperature control is below 70 DEG C, until bonding agent is fully cured,
Pipeline notch two ends seal nipple is bonding complete after, both sides banjo fixing butt jointing carry out finishing docking, interface connects
The neat formation annular groove of mouth.
Step 4: liner protection slips；
Liner slips (wall thickness 6mm, external diameter 225mm) is made, point upper and lower two dishes by annular groove specification
Staggered overlap joint, is stuck on annular groove and is filled and led up.Liner protection slips material selection 45# steel.
Step 5: the making of seal clamp and installation；
Seal clamp material selection boilers and pressure vessel steel, wall thickness 15mm.With seal clamp at simulation pipe
After Duan Shixian injecting glue seals, quiet clear water pressure testing 16MPa is qualified.
Fixture is double globoidal structures, and point upper dish, lower wall two parts, upper and lower dish is by the bar shaped with bolt
Folder ear is connected to form tubular structure, can be fixed in fixture by two seal nipples.In upper and lower dish respectively
It is designed with bar shaped injecting glue groove, after fastening, forms associated with one another four annular seal space, be fixture two ends respectively
Two annular seal spaces, two strip annular seal spaces on upper and lower dish composition surface, it is equal that hole for injecting glue prolongs annular seal space
Even layout, the distribution of annular seal space hole for injecting glue uses 8 cellular types, the distribution employing 6 of bar shaped annular seal space hole for injecting glue
Cellular type.Injecting glue groove deep 10mm, wide 20mm.
Anchorage clip ear snail bolt, makes gap, composition surface < 0.1mm, fixture and glass reinforced plastic pipe between the upper and lower dish of fixture
Gap, composition surface < 0.5mm.
Step 6: the selection of injecting sealant；
Select uncured type injecting sealant, use 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 (critical pressure) of pipeline unstability more than 60
MPa.Injecting sealant (glue stick) is heated to 90 DEG C-120 DEG C before using, and injects along hole for injecting glue successively, behaviour
When making, injecting glue walks glue Stress control at below 30MPa, and after full glue, injection pressure rises to 40MPa and stops note,
Hole for injecting glue is closed with bolt.
Step 8: seal clamp is fully wrapped around with slip-type plastics gum cover, included 5kg butter anticorrosion.
As it has been described above, embodiments of the invention are explained, but as long as essentially without de-
Inventive point and effect from the present invention can have a lot of deformation, and this is to one skilled in the art
Obviously.Therefore, within such variation is also integrally incorporated in protection scope of the present invention.
Claims (3)
1. a high-pressure glass fiber pipeline is installed and the process of pipe breakage maintenance, it is characterised in that step is as follows；
Step 1. glass reinforced plastic pipe pipeline breakage face is cut；
Excision pipeline damaged portion, makes fracture end face neat intact, and fracture go-and-retum is away from no more than 20mm；Pipeline damaged portion
Time longer, length on request can block pipe, it is considered to removable parts pipeline, form two fractures；
Step 2. medium water conservancy diversion technique；
As long in long-distance transport pipes being difficult to emptying or emptying time, for shortening the engineering time, medium water conservancy diversion can be implemented；Will be with leading
Flow tube, the inflation leather bag of gas tube are put in pipeline, and air pump is inflated to leather bag by inflation line, and leather bag expands, and block pipeline,
Stop leather bag outwards to be migrated with valve rubber, make medium diversed to specifying position from channelizing line, the holding of pipeline fracture can be made to clean,
It is dried, possesses lower step execution conditions；
Step 3. glass reinforced plastic pipe pipeline end face is repaired；
With making cone device or other specific purpose tools, pipeline fracture two ends being repaired cone angle 1 ° respectively-the male cone (strobilus masculinus) of 5 °, wherein h2 is pipeline
Wall thickness, h1 is the thickness repairing rear member-retaining portion, it is desirable to h1/h2 is not less than 1/2,
Step 4. seal nipple makes；
With internal diameter with material glass reinforced plastic pipe, wall thickness increases 10mm and makes long 200mm annular pipe nipple, side with beat cone device or its
His specific purpose tool in-line wall repairs with pipeline male cone (strobilus masculinus) with cone angle with the inner conical surface of length；Opposite side tube wall thins 6mm, prolongs
The widest 150mm of pipeline, end face is neat forms docking pipe nipple, and this seal nipple also can be prefabricated in the factory according to line size；h3
Repair the thickness of the port of rear member-retaining portion for inner conical surface, and h3 is not less than 10mm；H4 is pipeline internal diameter；H2 is pipeline walls
Thickness, h5 is the thickness after opposite side tube wall thins 6mm, and h5=h2+h3-6mm；
Step 5. adhering and sealing joint；
Cleaning contact surface, uniform brushing bonding agent, it is allowed to be mutually bonded, with heat tape or other firing equipment caking faces,
Heating and temperature control is below 70 DEG C, until bonding agent is fully cured, pipeline notch two ends seal nipple is bonding complete after, both sides
Banjo fixing butt jointing carries out finishing docking, interface interface neat formation annular groove；
Step 6. liner protection slips；
Making liner slips by annular groove specification, the wall thickness of described liner slips is 6mm, the staggered overlap joint of point upper and lower two dishes,
It is stuck on annular groove and is filled and led up；Liner protection slips material selection 45# steel；
The making of step 7. seal clamp and installation；
Fixture is double globoidal structures, and point upper dish, lower wall two parts, upper and lower dish is connected to form pipe by the bar clevis ear with bolt
Two seal nipples are fixed in fixture by shape structure；Upper and lower dish is respectively designed with bar shaped injecting glue groove, after fastening, forms that
These four annular seal spaces being connected, are two annular seal spaces at fixture two ends respectively, and two strips on upper and lower dish composition surface are close
Envelope chamber；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；Gap, composition surface < 0.1mm, fixture and glass between the upper and lower dish of fixture
< 0.5mm, hole for injecting glue is evenly arranged gap, steel pipe composition surface along annular seal space, straight line and camber line spacing all < 100mm between holes；Close
Envelope fixture material selection boilers and pressure vessel steel；The wall thickness of seal clamp determines according to the rated pressure of glass steel pipeline, at mould
It is qualified for intending segment seal pressure test pressure not less than 1.5 times of pipeline rated pressures；
The selection of step 8. injecting sealant；
Select uncured type injecting sealant, use 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 critical pressure of pipeline unstability, and it is complete to check that confirmation contacts pipeline section with fluid sealant
Good situation, injecting sealant is heated to 90 DEG C-120 DEG C before using, and described injecting sealant is glue stick, and during operation, injection pressure controls
Less than the 70% of pipeline critical pressure, and not less than pipeline rated pressure；
Step 10. is fully wrapped around by seal clamp with slip-type plastics gum cover, included butter anticorrosion.
2. a high-pressure glass fiber pipeline is installed and pipe breakage maintenance unit, it is characterised in that water conservancy diversion pipeline connects inflation leather bag, glass
Glass steel pipeline connects inflation leather bag, and being connected between glass steel pipeline with inflation leather bag has rubber-stopper circle, and inflation line connects
Charge valve and inflation leather bag, the other end of charge valve (4) connects air pump；Glass steel pipeline has 1 ° of 45 ' male cone (strobilus masculinus) of cone angle；
The side of seal nipple has with glass steel pipeline male cone (strobilus masculinus) with the inner conical surface of cone angle；Glass steel pipeline and one end of seal nipple
Connecting, the other end of seal nipple is connected with another seal nipple, and the excircle of connecting portion has annular groove；Liner
Protection slips is upper liner slips and lower liner slips, mates with annular groove specification, upper liner slips and lower liner
The staggered overlap joint of slips, upper liner slips and lower liner slips are connected with annular groove；Seal nipple excircle connects fixture
Upper dish, lower wall；Fixture is double globoidal structures, and point upper dish, lower wall two parts, upper dish, lower wall are by with bolt hole
Bar clevis ear is connected to form tubular structure, is fixed in fixture by two seal nipples；Upper dish, lower wall have bar shaped respectively
Injecting glue groove, forms associated with one another four annular seal space after fastening, be two annular seal spaces at fixture two ends respectively, upper dish,
Two strip annular seal spaces on lower wall composition surface；Upper dish, lower wall circumference on have hole for injecting glue.
A kind of high-pressure glass fiber pipeline the most according to claim 2 is installed and pipe breakage maintenance unit, it is characterised 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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| CN106931255A (en) * | 2015-12-29 | 2017-07-07 | 中国石油天然气股份有限公司 | Pipeline connects head device |
| CN105465542B (en) * | 2016-01-25 | 2017-11-28 | 安塞亿峰工贸有限责任公司 | A kind of double end repairing method with welding of glass steel pipeline |
| RU170283U1 (en) * | 2016-08-25 | 2017-04-19 | Сергей Алексеевич Волков | CLUTCH FOR REPAIR OF GLASS PIPES |
| CN107345612B (en) * | 2016-11-09 | 2019-06-07 | 上海英泰塑胶股份有限公司 | Internal pressure deformation formula internal lining pipe and its application method for existing pipe lining |
| CN108240523A (en) * | 2016-12-27 | 2018-07-03 | 中国石油天然气股份有限公司 | Pipeline sealing profile fixture |
| CN108240524B (en) * | 2016-12-27 | 2021-01-29 | 中国石油天然气股份有限公司 | Diameter-variable pipeline sealing clamp and pipeline maintenance method |
| CN108626513B (en) * | 2018-03-28 | 2023-11-24 | 国投新疆罗布泊钾盐有限责任公司 | Quick connector for glass fibre reinforced plastic pipeline |
| CN111365558A (en) * | 2020-04-15 | 2020-07-03 | 华育昌(肇庆)智能科技研究有限公司 | A3D printing device for pipeline inner wall is repaired |
| CN114688384B (en) * | 2020-12-31 | 2024-01-23 | 成都管力安科技有限公司 | Steel epoxy sleeve suitable for circumferential weld defect reinforcement |
| CN113561502A (en) * | 2021-07-06 | 2021-10-29 | 克拉玛依红山油田有限责任公司 | Rapid assembly multi-stage barrier multi-pipe-diameter universal fixture and rapid machining method of fixture |
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