CN106764190A - A kind of combination unit that branch pipe is installed for conveyance conduit with pressure - Google Patents
A kind of combination unit that branch pipe is installed for conveyance conduit with pressure Download PDFInfo
- Publication number
- CN106764190A CN106764190A CN201611246269.3A CN201611246269A CN106764190A CN 106764190 A CN106764190 A CN 106764190A CN 201611246269 A CN201611246269 A CN 201611246269A CN 106764190 A CN106764190 A CN 106764190A
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- CN
- China
- Prior art keywords
- valve
- conveyance conduit
- branch pipe
- combination unit
- valve shaft
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/021—T- or cross-pieces
-
- 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
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention discloses a kind of combination unit that branch pipe is installed for conveyance conduit with pressure, including detent mechanism, branch flow control mechanism and drilling processing machine structure, the detent mechanism includes sleeve assembly, sleeve assembly is adapted with the main pipeline for treating perforate, and sleeve assembly is sealed and coated on the supervisor's pipeline outer wall for treating perforate；The sleeve assembly is provided with overhanging cartridge type interface, and one end of cartridge type interface connects with the outer wall of main pipeline, and the other end and one end of branch flow control mechanism of cartridge type interface are tightly connected, and the other end of branch flow control mechanism is connected with drilling processing machine structure.Beneficial effects of the present invention are：The positioning of process pipeline is treated using detent mechanism, sealing using branch flow control mechanism to main pipeline is controlled, processed using the perforate of drilling processing machine structure, three kinds of Mechanism Combinations, it is capable of achieving the perforate of conveyance conduit with pressure, the material of transport in main pipeline will not be caused to reveal, it is ensured that the security of operation and the stability of transport.
Description
Technical field
The present invention relates to pipe-line equipment technical field, and in particular to a kind of combination that branch pipe is installed for conveyance conduit with pressure
Device.
Background technology
Pipeline is the important tool of extensive conveying.After conveyance conduit comes into operation, due to production development or the increasing of user
It is many, it is often necessary to carry out main pipeline extension or new lateral is installed on main pipeline.Because many enterprises are continuous
Production conveyance conduit cannot stop once running, such as city tap-water conveyance conduit, long range petroleum transportation pipeline, coal gas
Pipeline etc., the installation of lateral must be carried out with part welding is mutually passed through under operation with pressure.The material of major part conveying is inflammable
Explosive, easy pollution environment or poisonous, band press operation is susceptible to security incident.At present mostly using pipe plugging machinery and technique
To complete stopping transportation pressure plugging holes operation.Therefore, development one kind is safe, seal, cutting efficiency is high, workman's working condition is good
And various calibers, thickness can be cut and the device for installing branch pipe can be facilitated to be very important.
Mechanical cutting method cut quality is good, high precision, but cutting process produces amount of heat, it is necessary to cooled down；It is general
The export license of energization arc cutting is big, needs to change electrode in cutting process, causes gas leakage, and dangerous；Plasma cut
Quality is good, pollution-free, and fire retardation can be played with air-isolation using inert gas and High-Pressure Water, but the grade with protection from
Sub- cutting machine price is higher, and the security performance of the coal gas that the high temperature that produces is mixed with air to periphery still suffers from hidden danger during cutting.
The content of the invention
It is an object of the present invention in view of the shortcomings of the prior art, there is provided a kind of safe and reliable for delivery pipe with pressure
Road is installed by the combination unit of branch pipe.
The technical solution adopted by the present invention is：A kind of combination unit that branch pipe is installed for conveyance conduit with pressure, including it is fixed
Position mechanism, branch flow control mechanism and drilling processing machine structure, the detent mechanism include sleeve assembly, sleeve assembly with treat perforate
Main pipeline is adapted, and sleeve assembly is sealed and coated on the supervisor's pipeline outer wall for treating perforate；The sleeve assembly is provided with overhanging cylinder
Type interface, one end of cartridge type interface connects with the outer wall of main pipeline, the other end of cartridge type interface and one end of branch flow control mechanism
It is tightly connected, the other end of branch flow control mechanism is connected with drilling processing machine structure.
By such scheme, the sleeve assembly includes upper curved cover plate and arc lower cover plate, upper curved cover plate and arc lower
Cover plate can be connected as a cylinder；Upper curved cover plate compresses the upper and lower part of main pipeline outside wall surface with arc lower cover plate respectively,
The cartridge type interface is located at upper curved cover plate.
By such scheme, the branch flow control mechanism includes valve flanges, valve plate and valve shaft, one end of valve flanges and cylinder
Type interface is connected, and the other end of valve flanges is connected by connector with drilling processing machine structure；The valve plate is installed in valve method
Blue inside, the outer edge surface of valve plate can fit with the inwall of valve flanges completely；Valve plate is connected with valve shaft, and one end of valve shaft passes
The outer wall of valve flanges.
By such scheme, the jack being adapted with valve shaft is offered on the valve plate, locating slot is offered in jack；It is described
The external part of valve shaft is adapted with the valve shaft set located at valve flanges outer wall, and valve shaft puts and is provided with location hole；The valve shaft is up to
Two detent mechanisms are provided with less, and one of detent mechanism is adapted to locating slot, and another detent mechanism is adapted with location hole.
By such scheme, the detent mechanism includes spring, sliding block, and is opened in the blind hole on valve shaft, the spring
One end be fixed in blind hole, the other end of spring is connected with sliding block, sliding block can spring elastic force effect under it is outside along blind hole
Slide and partly stretch out blind hole, be adapted with locating slot or location hole.
By such scheme, the valve shaft external part is connected with rotation handle.
By such scheme, the drilling processing machine structure includes the water jet cutting for rotating outer barrel and being connected with external equipment
Head, rotates one end closure of outer barrel, and the water jet cutter sealing is installed on the closure end face for rotating outer barrel.
By such scheme, chute is offered along the radial direction for rotating outer barrel closure end face, the water jet cutter can be along cunning
Groove is slided.
By such scheme, the afterbody of water jet cutter is provided with cam, and the wheel face of cam is completely covered chute, and with rotation
The closure end face laminating of outer barrel.
By such scheme, the rotation outer barrel is provided with the boosting-rod that auxiliary is rotated.
Beneficial effects of the present invention are：
1st, the positioning of process pipeline is treated using detent mechanism, the sealing using branch flow control mechanism to main pipeline is controlled, and is used
The perforate of drilling processing machine structure is processed, three kinds of Mechanism Combinations, is capable of achieving the perforate of conveyance conduit with pressure, will not cause fortune in main pipeline
Defeated material leakage, it is ensured that the security of operation and the stability of transport；
2nd, perforate is carried out to pipeline using water jet patterning method, high-pressure water nozzle has very strong rectification function, the cutting of injection
Current have good bandha, and cutting process is pollution-free；If the main pipeline shipped material for treating perforate is not drinking water, water is cut
Stream is mixed to form abradant jet in the mulling chamber of cutting head with abrasive material, then spouting afterwards by " sand blasting pipe ", improves and cuts
Cut kinetic energy；
3rd, the closure end face of rotating cylinder is provided with chute, and water jet can cut to main pipeline along the path of setting, cut
Pipeline fragment can be discharged through tributary control assembly；The afterbody of water jet cutter is provided with cam, and cam is completely covered chute, can
The current for making water jet cutter be sprayed when cutting will not be leaked；
4th, detent mechanism and branch flow control mechanism are retained on main pipeline after perforate, the part as main pipeline after perforate, after
Continuous branch pipe(tube) is directly connected with main pipeline, improves the flexibility of branch pipe(tube) installation；
5th, simple structure of the present invention, safe operation, good stability is applied widely.
Brief description of the drawings
Fig. 1 is a structural representation for specific embodiment of the invention.
Fig. 2 is the structural representation of upper curved cover plate.
Fig. 3 is the structural representation of arc lower cover plate.
Fig. 4 is the structural representation of valve flanges.
Fig. 5 is the structural representation of valve shaft.
Fig. 6 is the structural representation of valve plate.
Fig. 7 is the structural representation of boosting-rod.
Fig. 8 is the structural representation of sliding block.
Fig. 9 is the structural representation of spring.
Figure 10 is the outside drawing of connector.
Figure 11 is the profile A-A of connector.
Figure 12 is the structural representation for rotating outer barrel.
Figure 13 is the left view of Figure 12.
Figure 14 is the structural representation of water jet cutter.
Figure 15 is the connection diagram of water jet cutter and rotating cylinder.
Figure 16 is the left view of Figure 15.
Figure 17 is the installation diagram of branch flow control mechanism.
Figure 18 is the cutting path schematic diagram of water jet cutter.
Wherein：1st, main pipeline；2nd, arc lower cover plate；3rd, upper curved cover plate；3.1st, cartridge type interface；4th, outer barrel is rotated；4.1、
Chute；5th, boosting-rod；6th, connector；7th, valve flanges；7.1st, valve shaft set；7.2nd, location hole；8th, valve shaft；8.1st, spring；8.2、
Sliding block；8.3rd, blind hole；8.4th, end plate；9th, handle is rotated；10th, valve plate；10.1st, jack；10.2nd, locating slot；11st, water jet cutting
Head；11.1st, inlet opening.
Specific embodiment
For a better understanding of the present invention, the present invention is further described with specific embodiment below in conjunction with the accompanying drawings.
A kind of combination unit that branch pipe is installed for conveyance conduit with pressure as shown in Figure 1, including detent mechanism, tributary control
Mechanism processed and drilling processing machine structure, the detent mechanism include sleeve assembly, and sleeve assembly is mutually fitted with the main pipeline 1 for treating perforate
Match somebody with somebody, sleeve assembly is sealed and coated on the outer wall of main pipeline 1 for treating perforate；The sleeve assembly is provided with overhanging cartridge type interface 3.1,
One end of cartridge type interface 3.1 connects with the outer wall of main pipeline 1（Cartridge type interface 3.1 is located at the tapping of main pipeline 1）, cartridge type interface
3.1 other end is tightly connected with one end of branch flow control mechanism, the other end and the drilling processing machine structure phase of branch flow control mechanism
Even.
Sleeve assembly includes upper curved cover plate 3 and arc lower cover plate 2, and upper curved cover plate 3 can be connected as with arc lower cover plate 2
One cylinder；Upper curved cover plate 3 compresses the upper and lower part of the outside wall surface of main pipeline 1 with arc lower cover plate 2 respectively, and by bolt
Connection；The cartridge type interface 3.1 is located at upper curved cover plate 3.
Branch flow control mechanism includes valve flanges 7, valve plate 10 and valve shaft 8, and one end of valve flanges 7 passes through bolt and cartridge type
Interface 3.1 is connected, and the other end of valve flanges 7 is connected by connector 6 with drilling processing machine structure, and connector 6 is up/down perforation
Cylindrical structure；Valve plate 10 is installed in the inside of valve flanges 7, the outer edge surface of valve plate 10 can completely with the inwall of valve flanges 7
Laminating（Valve plate 10 can completely enclose the inner passage of valve flanges 7）；Valve plate 10 is connected with valve shaft 8, and one end of valve shaft 8 passes valve
The outer wall of door flange 7, the external part of valve shaft 8 is provided with end plate 8.4, and end plate 8.4 is connected with rotation handle 9, when stirring rotation handle 9,
Valve shaft 8 is rotated and drives valve plate 10 to overturn, and realizes being turned on and off for valve flanges 7；The plate face center line of valve plate 10 can be with valve
The center line coincidence of door flange 7, the axis of valve shaft 8 and the central axis of valve flanges 7.Preferably, offered on valve plate 10
The jack 10.1 being adapted with valve shaft 8, offers locating slot 10.2 in jack 10.1, locating slot 10.2 with valve shaft 8
Detent mechanism is adapted.Preferably, the detent mechanism includes spring 8.1, sliding block 8.2, and is opened in the blind hole on valve shaft 8
8.3, one end of the spring 8.1 is fixed in blind hole 8.3, and the other end of spring 8.1 is connected with sliding block 8.2, and sliding block 8.2 can be
Slid in and out along blind hole 8.3 under the elastic force effect of spring 8.1 and blind hole 8.3 is stretched out in part, be adapted with locating slot 10.2.This reality
Apply in example, the external part of valve shaft 8 is adapted with the valve shaft set 7.1 located at valve flanges outer wall, and valve shaft set 7.1 is provided with location hole
7.2；At least provided with two detent mechanisms on the valve shaft 8, sliding block 8.2 and the locating slot 10.2 of one of detent mechanism are fitted
Match somebody with somebody, the sliding block 8.2 of another detent mechanism is adapted with location hole 7.2.
In the present invention, drilling processing machine structure includes the water jet cutter 11 for rotating outer barrel 4 and being connected with external equipment（Water
The inlet opening 11.1 of jet cutting head 11 is connected with external equipment）, rotate one end closure of outer barrel 4, the water jet cutter
11 sealings are installed on the closure end face for rotating outer barrel 4；Chute 4.1 is offered along the radial direction for rotating the closure end face of outer barrel 4, it is described
Water jet cutter 11 can be slided along chute 4.1；In order to ensure the sealing property of combination unit during cutting, cut in water jet
The end for cutting first 11 is provided with cam, and the wheel face of cam is fitted with the closure end face for rotating outer barrel 4；The wheel face size of cam is by chute
4.1 determine, it is ensured that water jet cutter 11 is moved to any position in chute 4.1, and the wheel face of cam can be completely covered and turn
The chute 4.1 of dynamic outer barrel 4；Cam is set to form sealing structure with outer barrel 4 is rotated, it is ensured that during pipe cutting, water jet
The current of the injection of cutting head 11 will not be revealed.The outer wall for rotating outer barrel 4 is connected with the inner thread of connector 6, institute
Screw thread is stated for rectangular thread（Sealing is realized, connection of the water flow inside from connector 6 and rotation outer barrel 4 in cutting process is prevented
Place's leakage）.Preferably, rotate outer barrel 4 and be provided with the boosting-rod 5 that auxiliary is rotated.
In order to ensure the sealing property of the combination unit, O-ring seal is respectively provided with the marginal portion of each component.
The present invention carries out perforate using water jet patterning method to pipeline, and be pressurized to for water using extremely-high tension generator by the method
500~600MPa, then by the nozzle of the mm of diameter about 0.2（Namely water jet cutter 11）Project, one flow velocity can be produced to reach
The supersonic speed water flow cutting of 800~1000 m/s, realizes pipe cutting.High-pressure water nozzle has very strong rectification function, injection
Water flow cutting there is good bandha, cutting process is pollution-free.If the main pipeline shipped material for treating perforate is not drinking water,
Water flow cutting is mixed to form abradant jet in the mulling chamber of cutting head with abrasive material, then spouting afterwards by " sand blasting pipe "；Cause
Abrasive material is mixed into, the cutting kinetic energy of several times can have been increased, abrasive water-jet now almost cleavable any material.
In the present embodiment between a diameter of 500mm ~ 1400mm of main pipeline 1, a diameter of 300mm of branch pipe to be installed ~
Between 1000mm.The detailed process for carrying out pipeline tapping using the present invention is：
1st, the specification and bore size according to the main pipeline 1 for treating perforate make each construction package of the combination unit；
2nd, installation detent mechanism, branch flow control mechanism and drilling processing machine structure are respectively combined, and water pump booster and water pump is connected
Connect the afterbody of water jet cutter 11；
3rd, valve shaft 8 is rotated, valve plate 10 is overturn to making current maximum by the space of valve flanges 7；
4th, open water jet cutter 11, make in the presence of boosting-rod 5 water jet cutter 11 as shown in Figure 17 1 → 2 → 3 →
Cut in 4 → 2 → 5 → 1 → 4 → 3 → 5 path, it is ensured that the tube wall for cutting down can be successfully under the impact of current
Move in the cavity of connector 6, to take out, prevent from blocking pipeline；
5th, after perforate terminates, manual-lock valve plate 10 removes drilling processing machine structure, retains perforate detent mechanism and tributary control machine
Structure；Follow-up branch flow pipe is connected directly between the afterbody of valve flanges 7.
Each several part is connected by valve flanges 7 in combination unit, by the size of control valve flange 7, can be met
The installation requirement of different size branch pipe.The operating mode of present apparatus design reference is city tap-water conveyance conduit, the main pipe of design
The diameter in road need to install the diameter of branch pipe between 300mm to 1000mm between 500mm to 1400mm；Conveying in pipeline
Medium can be oil gas etc..
The preferred embodiments of the present invention are these are only, is not intended to limit the invention, although with reference to the foregoing embodiments
The present invention is described in detail, for a person skilled in the art, it still can be to foregoing embodiments institute
The technical scheme of record is modified, or carries out equivalent to which part technical characteristic.It is all it is of the invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. it is a kind of for conveyance conduit with pressure install branch pipe combination unit, it is characterised in that including detent mechanism, branch flow control
Mechanism and drilling processing machine structure, the detent mechanism include sleeve assembly, and sleeve assembly is adapted with the main pipeline for treating perforate, cover
Cartridge module is sealed and coated on the supervisor's pipeline outer wall for treating perforate；The sleeve assembly is provided with overhanging cartridge type interface, cartridge type interface
One end connected with the outer wall of main pipeline, the other end and one end of branch flow control mechanism of cartridge type interface are tightly connected, tributary control
The other end of mechanism processed is connected with drilling processing machine structure.
2. the combination unit that conveyance conduit with pressure installs branch pipe is used for as claimed in claim 1, it is characterised in that the sleeve
Component includes upper curved cover plate and arc lower cover plate, and upper curved cover plate can be connected as a cylinder with arc lower cover plate；Upper arc
Cover plate compresses the upper and lower part of main pipeline outside wall surface with arc lower cover plate respectively, and the cartridge type interface is located at upper curved cover plate.
3. the combination unit that conveyance conduit with pressure installs branch pipe is used for as claimed in claim 1, it is characterised in that the tributary
Controlling organization includes valve flanges, valve plate and valve shaft, and one end of valve flanges is connected with cartridge type interface, the other end of valve flanges
It is connected with drilling processing machine structure by connector；The valve plate is installed in the inside of valve flanges, and the outer edge surface of valve plate can be complete
Fitted with the inwall of valve flanges；Valve plate is connected with valve shaft, and one end of valve shaft passes the outer wall of valve flanges.
4. the combination unit that conveyance conduit with pressure installs branch pipe is used for as claimed in claim 3, it is characterised in that the valve plate
On offer the jack being adapted with valve shaft, locating slot is offered in jack；The external part of the valve shaft be located at valve flanges
The valve shaft set of outer wall is adapted, and valve shaft puts and is provided with location hole；At least provided with two detent mechanisms on the valve shaft, one of them
Detent mechanism is adapted to locating slot, and another detent mechanism is adapted with location hole.
5. the combination unit that conveyance conduit with pressure installs branch pipe is used for as claimed in claim 4, it is characterised in that the positioning
Mechanism includes spring, sliding block, and is opened in the blind hole on valve shaft, and one end of the spring is fixed in blind hole, spring it is another
One end is connected with sliding block, and sliding block can be slid in and out along blind hole under the effect of the elastic force of spring and blind hole is stretched out in part, with locating slot
Or location hole is adapted.
6. the combination unit that conveyance conduit with pressure installs branch pipe is used for as claimed in claim 3, it is characterised in that the valve shaft
External part is connected with rotation handle.
7. the combination unit that conveyance conduit with pressure installs branch pipe is used for as claimed in claim 1, it is characterised in that the perforate
Organisation of working includes the water jet cutter for rotating outer barrel and being connected with external equipment, rotates one end closure of outer barrel, the water
The sealing of jet cutting head is installed on the closure end face for rotating outer barrel.
8. the combination unit that conveyance conduit with pressure installs branch pipe is used for as claimed in claim 7, it is characterised in that outer along rotating
The radial direction of cylinder closure end face offers chute, and the water jet cutter can be along slide.
9. the combination unit that conveyance conduit with pressure installs branch pipe is used for as claimed in claim 8, it is characterised in that water jet is cut
The afterbody for cutting head is provided with cam, and the wheel face of cam is completely covered chute, and is fitted with the closure end face for rotating outer barrel.
10. the combination unit that conveyance conduit with pressure installs branch pipe is used for as claimed in claim 1, it is characterised in that described turn
Dynamic outer barrel is provided with the boosting-rod that auxiliary is rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611246269.3A CN106764190B (en) | 2016-12-29 | 2016-12-29 | A kind of combination unit for conveyance conduit with pressure installation branch pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611246269.3A CN106764190B (en) | 2016-12-29 | 2016-12-29 | A kind of combination unit for conveyance conduit with pressure installation branch pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106764190A true CN106764190A (en) | 2017-05-31 |
| CN106764190B CN106764190B (en) | 2018-11-30 |
Family
ID=58927916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611246269.3A Expired - Fee Related CN106764190B (en) | 2016-12-29 | 2016-12-29 | A kind of combination unit for conveyance conduit with pressure installation branch pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106764190B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506638A (en) * | 2018-03-21 | 2018-09-07 | 北京市燃气集团有限责任公司 | Receipts system and method is put in detection robot in gas pipeline |
| CN109424817A (en) * | 2017-08-31 | 2019-03-05 | 中国石油天然气集团公司 | Method for blocking the pipe fitting of pipeline and blocking pipeline |
| CN109630802A (en) * | 2018-10-31 | 2019-04-16 | 河南中拓石油工程技术股份有限公司 | A kind of sealing element and monitoring technique is sealed for pipeline branch pipe aperture after repairing |
| CN111094668A (en) * | 2017-08-22 | 2020-05-01 | (株) 太明 | Multi-project pipe network measuring instrument and method for measuring tap water characteristics in pressurized mode by using same |
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| JP2007232178A (en) * | 2006-03-03 | 2007-09-13 | Sakura Gomme Kk | Connection fitting with safety mechanism and water supply hose |
| CN103629470A (en) * | 2013-12-12 | 2014-03-12 | 上海海长骄机电工程有限公司 | Pipeline nonstop-transmission holing and plugging system and process method thereof |
| CN104029248A (en) * | 2014-06-11 | 2014-09-10 | 永高股份有限公司 | PE gas pipeline borer for operation under pressure |
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| CN2705246Y (en) * | 2004-05-01 | 2005-06-22 | 刘科 | Non stop conveyer belt opening hole blocking machine with pressure |
| JP2007232178A (en) * | 2006-03-03 | 2007-09-13 | Sakura Gomme Kk | Connection fitting with safety mechanism and water supply hose |
| CN103629470A (en) * | 2013-12-12 | 2014-03-12 | 上海海长骄机电工程有限公司 | Pipeline nonstop-transmission holing and plugging system and process method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111094668A (en) * | 2017-08-22 | 2020-05-01 | (株) 太明 | Multi-project pipe network measuring instrument and method for measuring tap water characteristics in pressurized mode by using same |
| CN109424817A (en) * | 2017-08-31 | 2019-03-05 | 中国石油天然气集团公司 | Method for blocking the pipe fitting of pipeline and blocking pipeline |
| CN108506638A (en) * | 2018-03-21 | 2018-09-07 | 北京市燃气集团有限责任公司 | Receipts system and method is put in detection robot in gas pipeline |
| CN108506638B (en) * | 2018-03-21 | 2019-03-08 | 北京市燃气集团有限责任公司 | Receipts system and method is put in detection robot in gas pipeline |
| CN109630802A (en) * | 2018-10-31 | 2019-04-16 | 河南中拓石油工程技术股份有限公司 | A kind of sealing element and monitoring technique is sealed for pipeline branch pipe aperture after repairing |
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| Publication number | Publication date |
|---|---|
| CN106764190B (en) | 2018-11-30 |
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