CN108533830A - A kind of isometrical interspersed method for repairing Underground Glass Fibre - Google Patents
A kind of isometrical interspersed method for repairing Underground Glass Fibre Download PDFInfo
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- CN108533830A CN108533830A CN201810655145.3A CN201810655145A CN108533830A CN 108533830 A CN108533830 A CN 108533830A CN 201810655145 A CN201810655145 A CN 201810655145A CN 108533830 A CN108533830 A CN 108533830A
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- reinforced plastic
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- plastic pipe
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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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
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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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
- F16L1/11—Accessories therefor, e.g. anchors for the detection or protection of pipes in the ground
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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
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
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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
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
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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
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/10—Treating the inside of pipes
- F16L2101/12—Cleaning
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a kind of isometrical interspersed methods for repairing Underground Glass Fibre, and glass reinforced plastic pipe reparation section both ends excavate groove and block glass steel pipeline；Splitter is drawn by the glass reinforced plastic pipe, so that the glass reinforced plastic pipe is penetrated through along its axis direction and ruptures；Reamer is drawn by broken glass steel pipe, its internal diameter is made to be extended to more than or equal to new pipe outside diameter；The new pipe is drawn to enter in the reparation section of the glass reinforced plastic pipe after reaming.A kind of isometrical interspersed method for repairing glass reinforced plastic pipe of the present invention has the following advantages that：Can carry out construction interspersed over long distances, using equal diameter, etc. pressure rank continuous reinforced plastic composite pipe to bare glass steel pipeline carry out it is isometrical pass through replacements, pipe-repairing while, ensures pipe technology parameter constant, does not influence flow indicator, saving cost.
Description
Technical field
The present invention relates to petroleum transportation fields.It is repaiied it is more particularly related to which petroleum transportation glass reinforced plastic pipe is interspersed
Compound method.
Background technology
Traditional steel pipe or glass reinforced plastic pipe is pipeline made of thermosetting resin and the compound rear solidification of glass fibre, is had excellent
Elegant anticorrosive high voltage performance, but since the presence of solidification process small molecular makes to form certain sky in glass fibre reinforced plastic structure layer
Gap, in use, small molecule are precipitated, while pipeline is fluid affected, generate part Swelling.In addition, glass reinforced plastic pipe
Rigidity is good but impact strength is poor, is easily impacted by soil settlement and pouring weight and GRP pipe is caused to be damaged or have potential
Destroy risk.But as service life increases, because of reasons such as dielectric corrosion, landform sedimentation, joint fails, artificial destructions, exist
Certain damage risk, once leaking, economic loss, while the steel pipe or glass that part is buried can be not only brought to oil field
Glass steel petroleum pipeline leakage can will produce larger pollution to periphery farmland river, it is necessary to be repaired or replaced.Routine is more
It changes and re-lays a pipeline, new pipeline Meteorological is in addition to pipeline main material is taken, it is also necessary to put into land expropriation cost, construct
Excavation expense, other reimbursements for expenses etc., input is larger, and underground pipe network, which interlocks, often results in the difficulty that excavation is laid again.So
In the case that damaged condition is little, steel pipe and glass reinforced plastic pipe generally use local route repair, local route repair point long when service life
Excessively, operating expenses also can accordingly increase, so local route repair cannot be satisfied when requiring, need to solve using trenchless technology
Certainly.
Excavation-restoration construction method is broadly divided into three kinds：(1) horizontal directional drill/push bench process interts polyethylene pipe：Not yet
Have and construction path is drilled out using horizontal directional drill in the case of constructing path, then pulling polyethylene pipe by dragger passes through
Path.In the case where that can not determine steel pipe path and operating mode, while internal steel pipe blocking is more serious generally using this construction
Method；(2) push bench process is interspersed repairs steel pipe：The larger drainage pipeline of bore, it is general to intert and repair using welding inputting type, this
Kind method speed of application is slower, more demanding to original steel pipe inner wall, is generally used for the reparation of the pipeline of conveying natural gas；(3)
Polyethylene liner repairs this method of steel pipe and is suitble to medium partially small-bore steel pipe reparation, using polyethylene pipe lined steel pipe,
Flange is of less demanding to internal steel pipe to steel pipe corrosion-proof, while can be more commonly used construction method with long distance construction.And
The shortcomings that reparation steel pipe interspersed using polyethylene pipe：(1) polyethylene pipe bearing strength is low, is limited by pipe corrosion degree, nothing
Still push pipe and liner reparation is bored by being a horizontally oriented, is all exactly the use of common polythene pipeline there are one common problem
Pressure is usually no more than 1MPa, and the use pressure of oil field steel pipe and GRP pipe is generally in 1.5MPa or more, water injection pipe
Road pressure is generally more than 10MPa, so it is limited to repair the applicable field of polyethylene pipe；(2) it local failure and collapses：It is a small number of
Polyethylene pipe can be inserted by being folded into U-typed in old pipeline, make pipeline docile on outer layer pipe by suppressing, in this way
Even if outer layer pipe damage can still act as skeleton pressure-bearing.But the pipeline of this technique reparation has some potential safety problems：When
When conveying high-temperature medium, a degree of softening occurs for plastics, has the tendency that expanding outward in former breakthrough, raw steel pipe breakthrough
Shearing is generated to plastic tube, not up to service life polyethylene pipe will fail because of shearing；When conveying gas medium, gas
Body is penetrated by plastics among steel pipe and plastic tube, and when gas buildup is a certain amount of inner layer polyethylene generation can collapse, can not
Complete docile steel pipe, inner polyethylene tubes can not bear pressure because steel pipe skeleton is detached from when pressure changes.For
The serious pipeline of damage comparison, hole is excessive or SCC generates to destroy can not use polyethylene reparation.(3) lined with polyethylene steel pipe
Pipeline, which is damaged after the steel pipe being not easily repaired after repairing generates new corrosion failure by operation, after reparation to use welding to repair
Multiple, can only check card sub- reparation outside steel pipe, and medium can still permeate the corruption that will more accelerate steel pipe between polyethylene pipe and steel pipe
Erosion.
Invention content
It is an object of the present invention to provide a kind of isometrical method for replacing broken glass steel pipe of multiple tube, glass reinforced plastic pipe cut
After reaming, using equal diameter, etc. pressure rank continuous reinforced plastic composite pipe to bare glass steel pipeline carry out isometrical pass through replace
It changes, ensures pipe technology parameter constant while pipe-repairing, do not influence flow indicator, save cost.
It is a still further object of the present invention to provide a kind of duct cleaning processes, emit high pressure draught using spherical pig transmitter
Driving spherical pig pushes tamper to move out pipeline in pipeline, and can be judged by observation spherical pig surface scratch be in pipeline
It is no to have sharp objects.
A further object of the invention is to replace glass reinforced plastic pipe using continuous reinforced plastic composite pipe, can be carried out over long distances
Interspersed construction, and can independently bear higher operating pressure.
In order to realize these purposes and other advantages according to the present invention, a kind of isometrical interspersed reparation glass reinforced plastic pipe is provided
Method, glass reinforced plastic pipe reparation section both ends excavate groove simultaneously block glass steel pipeline；
Splitter is drawn by the glass reinforced plastic pipe, so that the glass reinforced plastic pipe is penetrated through along its axis direction and ruptures；
Reamer is drawn by broken glass steel pipe, its internal diameter is made to be extended to more than or equal to new pipe outside diameter；
The new pipe is drawn to enter in the reparation section of the glass reinforced plastic pipe after reaming.
Preferably, further include：The glass reinforced plastic pipe is broken to cut preceding progress cleaning process, and tamper in glass reinforced plastic pipe is moved
Go out.
Preferably, the cleaning process is：One end of glass reinforced plastic pipe is tightly connected spherical pig transmitter, and the other end is arranged
The string bag, the spherical pig transmitter drive spherical pig that tamper is pushed to move in the glass reinforced plastic pipe by high pressure draught, directly
Spherical pig is received to the string bag.
Preferably, when mounting and positioning device in the spherical pig, spherical pig encounter obturator and can not move, positioning device
Position signal is sent out, digging groove is carried out to the position and is blocked.
Preferably, surface tear inspection is carried out after the pigging ball warp string bag receives, and judges whether pipeline needs to remove
Sharp objects.
Preferably, the glass reinforced plastic pipe that the new pipe enters after reaming carries out the cleaning process, fettler after repairing section
The glass steel pipeline is accessed at new pipe both ends after sequence.
Preferably, the new pipe is flexible composite pipe, the internal diameter and pressure stage of the flexible composite pipe and glass reinforced plastic pipe
It is not identical.
Preferably, include after the cleaning process：With clear water pressure testing, 0.75,1 and of pipe design pressure is boosted to
Whether at 1.25 times, voltage stabilizing certain time checks whether leakage, and check pressure drop within the 1% of design pressure.
Preferably, include after the cleaning process：Traction rope passes through glass pipe, one end to connect the first winch, separately
One end connects the second winch, and the traction rope is pulled in pipeline and is moved by the first winch or the second winch.
Preferably, the traction rope includes across the step of glass pipe reparation section：Spherical pig transmitter emits
After the spherical pig being fixedly connected with rope passes through pipeline, rope both ends are separately connected the first winch and traction rope, and the first winch is drawn
Running rope and traction rope pass through pipeline.
The present invention includes at least following advantageous effect：Interspersed reparation is carried out using continuous reinforced plastic composite pipe (RTP) pipe
It is current most effective solution, continuous reinforced plastic composite pipe itself not only has flexibility identical with polyethylene, but also tool
Have the characteristics that steel pipe pressure-bearing is high, construction interspersed over long distances can be carried out, also, continuous reinforced plastic composite pipe has compared in highly resistance
External pressure, stretch-proof intensity, can independently bear higher operating pressure.In the basic effect of Efficient software patching pipeline, may be used also
With：1, it saves land requisition expense and crop compensation takes；2, pipe trench earthwork expense is saved；3, save metal pipeline flaw detection take, buckle up
Take；4, do not change former pipeline route, do not influence other operation pipelines and electric power cable；5, the assets class of old pipeline will not
It changes, expense can be included in the repair of original pipeline, will not cause new asset depreciation.6, no-dig technique interts recovery technique
15% or more cost savings can be reduced.
Part is illustrated to embody by further advantage, target and the feature of the present invention by following, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Description of the drawings
Fig. 1 is the isometrical interspersed method process flow chart for repairing glass reinforced plastic pipe of the present invention
Fig. 2 is the glass reinforced plastic pipe pigging process schematic diagram of the present invention.
Fig. 3 is that the rope of the present invention passes through glass reinforced plastic pipe schematic diagram.
Fig. 4 is that the traction rope of the present invention passes through glass reinforced plastic pipe schematic diagram.
Fig. 5 is that the glass reinforced plastic pipe of the present invention breaks cutting process schematic diagram.
Fig. 6 is the glass reinforced plastic pipe reaming process schematic diagram of the present invention.
Fig. 7 is the isometrical replacement schematic diagram of flexible composite pipe of the present invention.
Fig. 8 is the foam type spherical pig structural schematic diagram of the present invention.
Fig. 9 is the leather cup type spherical pig structural schematic diagram of the present invention.
Figure 10 is the reamer structure chart of the present invention.
Specific implementation mode
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
The isometrical interspersed method implementation process for repairing glass reinforced plastic pipe of the present invention is as follows：
2.1 determine construction process
As shown in Figure 1, including start project verification, construction site reconnoitres, is related to budget compilation, material is purchased and equipment prepare,
Material installation personnel mobilization, the inspection of glass reinforced plastic pipe pigging, glass reinforced plastic pipe be broken to be cut, traversing pipe line routing reaming, traction crossing construction,
Pressure testing inspection and levelling of the land restore.
It reconnoitres 2.2 construction sites
Reconnoitre groundwork in construction site：It determines traversing pipe line starting and final position, checks pipeline route earth's surface
Starting and terminal excavation plan are passed through in situation, determination, determine equipment, flexible compound pipe dish placement position, draw spot plane cloth
Set figure.
Specific works are as follows：1, the old pipeline appearance and size of field survey, measure starting with terminal distance, determine pass through away from
From；2, former pipeline route figure is reconnoitred, formulates and interts scheme；3, shear force is broken to old glass steel pipeline, traversing pipe line route reaming
Soil resistance is calculated, and determines winch capacity, so that it is determined that winch parameter.4, it needs to carry out live glass reinforced plastic pipe when necessary
Broken cut of line is tested with reaming pull.According to old glass reinforced plastic pipe linear dimension and broken shear force size design specialized splitter；According to flexibility
Multiple tube passes through size design reamer；According to calculate and test data select pulling winch model, determine wirerope diameter with
Length.
2.3 materials are purchased and equipment prepares
2.3.1 material is purchased：It is calculated according to design and arrangement and method for construction determines construction material requested, purchased material and strictly purchase
Flow carries out quality control, is calculated according to design and arrangement and method for construction determines equipment list, carried out before the dynamic demobilization of equipment equipment inspection,
Test run, it is ensured that specification of equipment model is consistent with equipment list, and equipment appearance is good, and inspection data meets the requirements.
Prepare before 2.4 constructions
It needs to need the beginning and end of channel angular crossline to carry out channel excavation, groove dimensions symbol according to construction before construction
Site operation is closed to need.Carry out the material installations Ground arrangements such as flexible compound pipe dish, winch.
2.5 bare glass steel pipeline pigging inspections
2.5.1 spherical pig transmitter is installed in the wire cutting of aging glass reinforced plastic pipe
In another embodiment, spherical pig cleaning process is shown, as shown in Fig. 2, in the aging fiberglass for preparing to replace
Pipe 100 originates and removes 100 surface soil of glass reinforced plastic pipe in terminal groove, and cuts.It is installed in 230 transmitting terminal of spherical pig special
Spherical pig transmitter 220, spherical pig transmitter 220 are fixed with glass reinforced plastic pipe 100 using fixture, sealing ring sealing；Installation cut-off
The instrument and meters such as valve, gauge valve, pressure gauge, connection calm the anger flexible composite pipe to air compressor machine 210 pressurized tank.In spherical pig 230
Receiving terminal installs spherical pig 230 and receives the string bag 240.Wherein, the spherical pig 230 selects foam type spherical pig 230a.Such as Fig. 8 institutes
Show, foam type spherical pig 230a is bullet shape, and the wear-resisting polyurethane material of external coating last layer, full-length is pipeline
Twice of diameter；Foam type spherical pig 230a has high compression rate, good autgmentability, lightweight and flexibility, can be by more
The pipeline of caliber, the elbow less than 90 °, at least complex situations such as valve of 65% aperture.
2.5.2 transmitting foam type spherical pig 230a
Fig. 2 is referred to, foam type spherical pig 230a is put into special spherical pig transmitter 220, opens shut-off valve of calming the anger, pneumatics
Machine 210, which is calmed the anger, drives foam type spherical pig 230a to clear up residuals in pipeline.As in pipeline without tamper, foam type
Spherical pig 230a will pass through glass reinforced plastic pipe 100 and reach pipeline terminal, and receiving the string bag 240 by terminal spherical pig captures.Terminal
If special messenger guards, it is found that foam type spherical pig 230a enters the reception string bag 240 and notifies transmitting terminal personnel to close valve of calming the anger in time,
Stop gas supply.
In another embodiment, scale removal process when having tamper in glass reinforced plastic pipe 100 is shown.Foam type spherical pig
In 230a emission process, due to thering is tamper to cause foam type spherical pig 230a that cannot pass through glass reinforced plastic pipe in caliber deformation, pipe
100, pipeline of calming the anger can be connected in pipeline terminal, foam type spherical pig 230a is got into pipeline from beginning；Foam type spherical pig 230a
With electronics tracker by GPS positioning device, it can determine that unsanctioned position, hand digging disconnection cannot pass through position
Pipeline.Area of isolation, non-working person's No Admittance are set when pigging；Staff strictly presses operating instruction and operates, and prevents people
Member's injury.
2.5.3 foam type spherical pig 230a is checked
After receiving foam type spherical pig 230a, the surfaces foam type spherical pig 230a are checked, it is as sharp hard in found to have
Object cut etc. need to re-start pipeline cleaning, scraped using solvent washing, machinery or the technologies such as high pressure water flow rinses carry out pipeline
It cleans, is damaged to flexible composite pipe when preventing flexible composite pipe from passing through；
As spherome surface illustrates to carry out glass reinforced plastic pipe 100 without sharp hard object in glass reinforced plastic pipe 100 and break without sharp cut
Cut, reaming, the isometrical poling of flexible composite pipe.
2.6 the broken of bare glass steel pipeline are cut：Glass reinforced plastic pipe emits the rear progress aging without exception on inspection of foam type spherical pig
Glass reinforced plastic pipe is broken to be cut.
In another embodiment, crossing process of the rope in glass reinforced plastic pipe 100 is shown, wherein the rope is selected
Nylon rope 200, spherical pig 230 select leather cup type spherical pig 230b, Fig. 9 to show the cup chip knot of leather cup type spherical pig 230b
Structure, material selection polyurethane material.
Fig. 3 is referred to, 200 one end of nylon rope is fixed on leather cup type spherical pig 230b tail ends, then by leather cup type spherical pig
230b is put into spherical pig transmitter 220, the tail end of nylon rope 200 is fixed on the sealing flange of spherical pig transmitter 220；
200 length of nylon rope is more than 100 length of glass reinforced plastic pipe.Opening calm the anger valve transmitting leather cup type spherical pig 230b, leather cup type pigging
When ball 230b reaches the reception string bag 240, completes nylon rope 200 and pass through 100 task of glass reinforced plastic pipe.Dismantle beginning spherical pig transmitter
220 and terminal receive the string bag 240；
In another embodiment, crossing process of the traction rope in glass reinforced plastic pipe 100 is shown, wherein the traction rope
Select steel wire rope 270, first winch that 3T winches 260, second winch is selected to select 30T winches 250.Fig. 4 is referred to,
Terminal places 3T winches 260, and beginning places 30T winches 250,200 one end of nylon rope is connect with 260 reel of 3T winches, another
End is connect with 250 steel wire rope 270 of 30T winches, loosens steel wire rope 270 on 30T winches 250, while tightening 3T winches 260, by 30T
Steel wire rope 270 passes through glass reinforced plastic pipe 100 on winch 250.
As shown in figure 5, in 100 terminal of glass reinforced plastic pipe by 100 special splitter 280 of glass reinforced plastic pipe, the splitter 280 is
The outer diameter of cross steel edge, knife is more than internal diameter of the pipeline, to make pipeline breaking when splitter 280 being made to pass through pipeline.Splitter
280 connect with steel wire rope 270 on 30T winches 250, and 250 traction splitter 280 of startup 30T winches is complete by glass reinforced plastic pipe 100
Cutting is broken at glass reinforced plastic pipe 100 to make.Nylon rope 200 on 260 reel of terminal 3T winches is fixed on to the tail end of splitter 280,
When splitter 280 is broken by the traction of 30T winches 250 cuts glass reinforced plastic pipe 100,260 nylon rope 200 of release 3T winches, nylon rope 200
Initiating terminal is reached by glass reinforced plastic pipe 100 by 280 traction of splitter.
The reaming of 2.7 bare glass steel pipelines
To ensure not changing the design parameter of bare glass steel pipeline, this pass through using with isometrical soft of glass reinforced plastic pipe 100
Property multiple tube 300, for ensure flexible composite pipe 300 pass through smoothly, must to bare glass steel pipe 100 route progress reaming.
It is as follows that glass reinforced plastic pipe 100 as shown in FIG. 6 route pore widening step：By traction to initiating terminal and terminal 3T winches
The nylon rope 200 of 260 reels connection is connect with steel wire rope 270 on 30T winches 250, loosens steel wire rope 270 on 30T winches 250,
Terminal 3T winches 260 are tightened simultaneously, steel wire rope 270 on 30T winches 250 is route across glass reinforced plastic pipe 100；In terminal by reaming
Device 290 is connect with steel wire rope 270 on 30T winches 250, starts 30T winches 250, reamer 290 is drawn through glass reinforced plastic pipe
100 routings complete crossline and route reaming；When reaming, the nylon rope 200 on 260 reel of terminal 3T winches is fixed on expansion
The tail end of hole device 290, when reamer 290 is drawn through glass reinforced plastic pipe 100 by 30T winches 250 to be route, release 3T winches 260
Nylon rope 200, nylon rope 200 are counter-bored 290 traction of device and route arrival initiating terminal by glass reinforced plastic pipe 100.
As shown in Figure 10, reamer 290 is pre-small post-large cone, and inside has screw thread or front and back end to be machined with draw hook,
Haulage cable can be installed, the expansion for former pipeline.Size is different with pipeline to be penetrated according to different former pipelines and becomes
Change, point diameter is slightly less than former pipe diameter (small 3~10mm), rear end diameter be more than pipe diameter to be penetrated (it is big by 10~
100mm),
2.8 bare glass steel pipelines pass through
Before flexible composite pipe 300 passes through, the storage plate rail of flexible composite pipe 300 is located at and passes through terminal, flexible composite pipe 300
Axis is route unanimously with the glass reinforced plastic pipe 100 through reaming；Head is drawn in the installation of flexible composite pipe 300.
Steps are as follows for 300 crossing construction of flexible composite pipe as shown in Figure 7：By traction to initiating terminal and terminal 3T winches
The nylon rope 200 of 260 reels connection is connect with steel wire rope 270 on 30T winches 250, loosens steel wire rope 270 on 30T winches 250,
Terminal 3T winches 260 are tightened simultaneously, steel wire rope 270 on 30T winches 250 is route across glass reinforced plastic pipe 100.In terminal by 30T
Steel wire rope 270 is drawn head with flexible composite pipe 300 and is connect on winch 250, starts 30T winches 250 by 300 traction of flexible composite pipe
Pass through the routing of bare glass steel pipe 100.
The pigging pressure testing of 2.9 flexible composite pipes 300
After flexible composite pipe 300 passes through the routing of bare glass steel pipe 100, connecting flange is installed at 300 pipe both ends of flexible composite pipe.
In initiating terminal hose installation spherical pig transmitter 220, terminal installs spherical pig 230 and receives the string bag 240；Valve, instrument are installed, even
Connect gas band；Foam type spherical pig 230a is put into spherical pig transmitter 220, pressure valve goalkeeper's foam type spherical pig 230a is opened
Transmitting to terminal completes the work of hose pigging.Pipeline connection installation should after the assay was approved, buried pipeline in addition to connector interface, remaining
Backfill is answered to the above 500mm of tube top and is compacted in position.
Total interface on pressure testing pipeline section should block No leakage.Equipment influential on pressure testing, barrier should be removed.Pressure testing
Pump, pressure gauge should check, verify qualification.The precision of pressure gauge is not lower than 1.5 grades, and dial plate diameter is no less than 150mm, range
The quantity of preferably 1.3 times of test pressure~1.5 times, table should not be less than 2 pieces.
2.10 pressure testing requires
Flexible composite pipe 300 should make a strength test after installing and leak test, test(ing) medium should be clear water.Intensity
The hydrostatic pressure of pressure testing should be 1.25 times of design pressure, and the hydrostatic pressure of Tightness test should be design pressure.Winter carries out
When the water pressure test, antifreezing measures should be taken, should in time be purged the water in pipeline after pressure testing clean.Continuous pipe river crossing, iron
When road, the above highway of two level and expressway, pressure testing should be individually carried out.Pressure testing water is preferably slowly poured into from low spot, is excluded from eminence empty
Gas, can pressure testing after gas in pipe drains.During pressure testing, should not pipeline and interface be beaten or be repaired defect, be met
Label should be made when defective, pressure can repair after being reduced to zero.Strength test should slowly boost, and pressure rises to experiment pressure respectively
When 50% and pipe design pressure of power, each voltage stabilizing 10min, on inspection No leakage continues to rise to test pressure, voltage stabilizing 30min,
Pressure drop is not more than the 1% of test pressure, tube body, joint ne-leakage, and Strength test is qualification.Pressure is down to setting for pipeline
It counts pressure and carries out leak test, voltage stabilizing 4h, and the progress visual examination of butt joint position, if pressure drop is not more than pipe design pressure
The 1% of power, connector ne-leakage, Tightness test are qualification.Otherwise it should ascertain the reason, pressure release repairs fault location after discharging water
Processing, then pressure testing again, until qualified.
2.11 site recovery
After hose trial operation is without exception, hose initiating terminal and terminal trenches are carried out original soil backfill by usage mining machine, are restored
Original appearance.
Embodiment<1>
Five mine DN65 high pressure lines of Shengli Oil Field river mouth oil recovery factory wear engineering deeply
The engineering is constructed in river mouth in July, 2015 oil recovery factory, and pumped (conveying) medium is hot water mixing, 360 meters of total length, pipeline specification
It is the high-voltage tube that can bear 16MPa of DN65.Construction site is located at the towns Chen Zhuan residential neighborhood, which mainly wears old deeply
The Your Majesty road of Zhuan Zhen connects two mouthfuls of wells.The engineering isometrical interspersed method for repairing glass reinforced plastic pipe using the present invention, is adopted
It is repaired with the continuous pipe with GRP pipe same diameter, ensures pipe technology parameter constant while pipe-repairing, no
Flow indicator is influenced, cost is saved.
Although the embodiments of the present invention have been disclosed as above, but listed fortune not only in the description and the implementation
With.It can be applied to various suitable the field of the invention completely.It for those skilled in the art, can be easily real
Now other modification.Therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is not limited to
Specific details and legend shown and described herein.
Claims (10)
1. a kind of isometrical interspersed method for repairing Underground Glass Fibre, which is characterized in that
It excavates groove and blocks glass steel pipeline in glass reinforced plastic pipe reparation section both ends；
Splitter is drawn by the glass reinforced plastic pipe, so that the glass reinforced plastic pipe is penetrated through along its axis direction and ruptures；
Reamer is drawn by broken glass steel pipe, its internal diameter is made to be extended to more than or equal to new pipe outside diameter；
The new pipe is drawn to enter in the reparation section of the glass reinforced plastic pipe after reaming.
2. the isometrical interspersed method for repairing Underground Glass Fibre as described in claim 1, which is characterized in that further include：It is described
Glass reinforced plastic pipe is broken to cut preceding progress cleaning process, and tamper in glass reinforced plastic pipe is removed.
3. the isometrical interspersed method for repairing Underground Glass Fibre as claimed in claim 2, which is characterized in that the cleaning process
For：
One end of glass reinforced plastic pipe is tightly connected spherical pig transmitter, and the other end is arranged the string bag, and the spherical pig transmitter passes through height
Pressure gas stream driving spherical pig pushes tamper to move in the glass reinforced plastic pipe, until the string bag receives spherical pig.
4. the isometrical interspersed method for repairing Underground Glass Fibre as claimed in claim 3, which is characterized in that in the spherical pig
When mounting and positioning device, spherical pig encounter obturator and can not move, positioning device sends out position signal, is dug to the position
Groove simultaneously blocks.
5. the isometrical interspersed method for repairing Underground Glass Fibre as described in claim 3 or 4, which is characterized in that the pigging
The ball warp string bag carries out surface tear inspection after receiving, and judges whether pipeline needs to remove sharp objects.
6. the isometrical interspersed method for repairing Underground Glass Fibre as claimed in claim 3, which is characterized in that the new pipe enters
Glass reinforced plastic pipe after reaming carries out the cleaning process after repairing section, and the glass reinforced plastic pipe is accessed at the new pipe both ends after cleaning process
Line.
7. the isometrical interspersed method for repairing Underground Glass Fibre as claimed in claim 6, which is characterized in that the new Guan Weirou
Property multiple tube, the flexible composite pipe are identical as the internal diameter of glass reinforced plastic pipe and pressure rank.
8. the isometrical interspersed method for repairing Underground Glass Fibre as claimed in claim 7, which is characterized in that the cleaning process
After include：
With clear water pressure testing, when boosting to 0.75,1 and 1.25 times of pipe design pressure, voltage stabilizing certain time checks whether leakage,
And check pressure drop whether within the 1% of design pressure.
9. the isometrical interspersed method for repairing Underground Glass Fibre as claimed in claim 2 or claim 3, which is characterized in that the cleaning
Include after process：
Traction rope passes through glass pipe, one end to connect the first winch, and the other end connects the second winch, and the traction rope passes through the
One winch or the second winch are pulled in pipeline and move.
10. the isometrical interspersed method for repairing Underground Glass Fibre as claimed in claim 9, which is characterized in that the traction rope
Include across the step of glass pipe reparation section：
After the spherical pig that the transmitting of spherical pig transmitter is fixedly connected with rope passes through pipeline, rope both ends are separately connected the first winch
And traction rope, the first winch pull rope and traction rope to pass through pipeline.
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| CN201810655145.3A CN108533830A (en) | 2018-06-23 | 2018-06-23 | A kind of isometrical interspersed method for repairing Underground Glass Fibre |
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| CN201810655145.3A CN108533830A (en) | 2018-06-23 | 2018-06-23 | A kind of isometrical interspersed method for repairing Underground Glass Fibre |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340451A (en) * | 2018-09-02 | 2019-02-15 | 青岛安装建设股份有限公司 | A kind of super-silent drainpipe installation method of plough groove type high density polyethylene (HDPE) |
-
2018
- 2018-06-23 CN CN201810655145.3A patent/CN108533830A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340451A (en) * | 2018-09-02 | 2019-02-15 | 青岛安装建设股份有限公司 | A kind of super-silent drainpipe installation method of plough groove type high density polyethylene (HDPE) |
| CN109340451B (en) * | 2018-09-02 | 2021-05-28 | 青岛安装建设股份有限公司 | Installation method of groove type high-density polyethylene super-silent drain pipe |
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Application publication date: 20180914 |