CN106122671B - A kind of wiper for pipe plugging - Google Patents
A kind of wiper for pipe plugging Download PDFInfo
- Publication number
- CN106122671B CN106122671B CN201610465568.XA CN201610465568A CN106122671B CN 106122671 B CN106122671 B CN 106122671B CN 201610465568 A CN201610465568 A CN 201610465568A CN 106122671 B CN106122671 B CN 106122671B
- Authority
- CN
- China
- Prior art keywords
- heart axle
- cylinder
- check valve
- leather
- controllable check
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
- F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
- Pipe Accessories (AREA)
Abstract
The present invention relates to a kind of wiper for pipe plugging, for the pipe plugging in pipeline welding operation process.Its technical scheme：Heart axle front and back end sets two leather cups respectively, and heart axle centre position sets cylinder, and mandrel end section installs drive end bearing bracket and rear end cap, and controllable check valve steam vent connects cylinder, and gas control check valve air admission hole and control interface are connected respectively to heart axle front end and mandrels backend.The present invention is using machinery and baric systerm, and no electric control part is higher to oil-gas pipeline safety in utilization；Undergauge is reclaimed, and reduces the resistance of removal process.
Description
Technical field
The present invention relates to a kind of wiper for pipe plugging, for pipeline welding operation process, to pipe cutting portion
Position is blocked.
Background technology
In Oil ＆ Gas Storage and city gas engineering, oil and gas conveying needs to lay long-distance large-caliber pipeline,
To in-service oil-gas pipeline, as pipeline service life increases, pipeline may be broken caused by the factor such as corrosion and fatigue and mechanical damage
Bad and defect, or because the reasons such as urban construction need in-service pipeline to relocate, it is required to in-service oil-gas pipeline partial cut
Afterwards, new pipeline is welded again, welding technique is involved in fire operation, to ensure that construction safety needs to remain in the duct
Oil gas enter line replacement or closure.
Existing Fire Work Technology mainly includes displacement Fire Work Technology, wherein safety closure Fire Work Technology, nitrogen displacement technology
Because having regulations for technical operation standard, norm controlling is strict and is widely adopted, but in actual fire operation technology, originally
The qualified natural gas line of displacement, because of the internal volatilization that there is condensate, cause in fire operation permutizer condition unqualified, it is necessary to
Stop welding, restart nitrogen displacement, until can continue to get angry after condition is qualified, this just extends the fire operation cycle, increase
Fire operation cost；Safe blocking technology has using freeze plugging technology, the technology using solid water emulsifying agent at low temperature with pipe
The jelly of wall glues effect and realizes that oil gas is isolated, but this technology needs longer medium cooling time, and early-stage preparations overlong time is moved
Fiery operating cost increase.
Existing pipeline welding plugging device, is blocked using conventional hermetic type wiper, by pipeline after the completion of construction
Medium promotes wiper to be reclaimed.Because being sealed using leather cup with pipeline interference fit, to ensure sealing effectiveness, pipeline
Contact forces with wiper are excessive, and removal process medium promotes difficulty big, while easily causing wiper serious wear and pipe
The problems such as road is abraded.On the other hand, welded for submarine pipeline underwater dry-type, need also exist for using closed type after pipe cutting
Wiper is blocked, and operating room, which gets up pipeline section cover, to be implemented after draining to weld.Under this operating mode, more require that wiper is blocked
Effectively, liquid medium can not leak into welding position influence welding effect.
Based on above-mentioned technical background, the present invention is special to provide a kind of wiper for pipe plugging.
The content of the invention
The purpose of the present invention：In order to overcome existing pipeline plug closure is not tight and excessive removal process resistance to lack
Point, spy provides a kind of wiper for pipe plugging.
To reach above-mentioned purpose, the present invention is adopted the technical scheme that：
Before a kind of wiper for pipe plugging, including drive end bearing bracket, leather cup, cylinder, heart axle, controllable check valve, heart axle
Rear end sets two leather cups respectively, and heart axle centre position sets cylinder, and mandrel end section installs drive end bearing bracket and rear end cap, controllable unidirectional
Valve outlet hole connects cylinder, and controllable check valve air admission hole and control interface are connected respectively to heart axle front end and mandrels backend, and it is special
Levy and be：
Leather cup is the dish with centre bore, and heart axle passes through leather cup centre bore, and heart axle front and back end sets two leather cups respectively；The heart
Two leather cups of axle front-end and back-end are positioned opposite respectively and are buckled together, and two adjacent leather cups are centrally formed a sky
Chamber, more optimizes, and compression spring is set in the cavity；
Mandrels backend installs rear end cap, and is connected by the way of welding or screw thread or bolt；Install heart axle front end
Drive end bearing bracket is simultaneously connected by the way of welding or screw thread or bolt；Bolt is used between rear end cap and drive end bearing bracket and adjacent leather cup
Connection；
Cylinder is set between two leather cups in the middle of heart axle, and the cylinder is arranged in parallel with heart axle；The cylinder body and skin of cylinder
Mounting ring is set between bowl, the mounting ring is enclosed on heart axle, cylinder block is fixed in mounting ring；
Heart axle front and back end sets axial hole, the steam vent connection cylinder of controllable check valve, the air inlet of controllable check valve respectively
Hole and control interface are connected respectively to heart axle front end and mandrels backend by the axial hole of heart axle front and back end；More optimize, can
Storage tank is set between control check valve and cylinder.
The invention has the advantages that：1st, a kind of wiper for pipe plugging of the present invention, by dish
Leather cup struts sealing, and sealing effectiveness is easily guaranteed that；2nd, the present invention is using machinery and baric systerm, no electric control part, to Oil/Gas Pipe
Road safety in utilization is higher；3rd, pressure release is opened by pressure medium triggering controllable check valve, it is easy to operate；4. undergauge is reclaimed, drop
The resistance of low removal process, while reducing wiper blocking risk.
Brief description of the drawings
Fig. 1 is structure diagram of the invention.
Fig. 2 is baric systerm schematic diagram of the invention.
In figure：1. drive end bearing bracket；2. leather cup；3. mounting ring；4. cylinder；5. piston rod；6. support ring；7. rear end cap；8. pressure
Contracting spring；9. heart axle；10. pipeline；11. joint A；12. joint B；13. storage tank；14. source of the gas；15. controllable check valve；151. enter
Stomata；152. control interface；153. steam vent.
Embodiment
The present invention is not limited by following embodiments, can be determined with technique according to the invention scheme and actual conditions
Specific embodiment.Make following describe to the present invention with reference to Fig. 1, Fig. 2.The position relationship of upper and lower, left and right etc. be according to
Determined according to the layout direction of Figure of description 1.
Leather cup 2 is the dish with centre bore, and heart axle 9 passes through the centre bore of leather cup 2, and the front and back end of heart axle 9 sets two skins respectively
Bowl 2.Two leather cups 2 of the front end of heart axle 9 are positioned opposite and are buckled together, and two leather cups 2 of the front end of heart axle 9 are centrally formed one
Cavity, the cavity inside sets compression spring 8.Two leather cups 2 of the rear end of heart axle 9 are positioned opposite and are buckled together, heart axle 9
Two leather cups 2 of rear end are centrally formed a cavity, and the cavity inside sets compression spring 8.
2 cylinders 4 are set between two leather cups 2 in the middle of heart axle 9 and are arranged symmetrically, the cylinder 4 and the parallel cloth of heart axle 9
Put, the cylinder body of cylinder 4 is withstood on a leather cup 2 in the middle of heart axle 9, the piston rod 5 of cylinder 4 withstands on another in the middle of heart axle 9
On leather cup 2.More optimize, mounting ring 3 be set between the cylinder body and leather cup 2 of cylinder 4, the mounting ring 3 is enclosed on heart axle 9,
The cylinder body of cylinder 4 is fixed in mounting ring 3.More optimize, support ring 6 is set between the piston rod 5 and leather cup 2 of cylinder 4, it is described
Support ring 6 is enclosed on heart axle 9.So, the axial thrust of cylinder 4 is delivered on leather cup 2 by support ring 6 and mounting ring 3.
Rear end cap 7 is installed in the rear end of heart axle 9, and using welding manner connection；Drive end bearing bracket 1 is installed and spiral shell is used in the front end of heart axle 9
Line is connected.More optimize, be connected between rear end cap 7 and adjacent leather cup 2, spiral shell is used between drive end bearing bracket 1 and adjacent leather cup 2
Tether and connect.
The front and back end of heart axle 9 sets axial hole respectively, and the centre position of heart axle 9 sets joint A11 and joint B12 and uses screw thread
Connection, joint A11 is connected to the front end axial hole of heart axle 9, and joint B12 is connected to the rear end axial hole of heart axle 9.Controllable check valve 15 is set
It is placed in wiper of the present invention, the steam vent 153 of controllable check valve 15 is connected with cylinder 4；The air inlet of controllable check valve 15
The control interface 152 of the jointing A11 of hole 151 and controllable check valve 15 is connected to joint B12, or controllable check valve 15
The control interface 152 of the jointing B12 of air admission hole 151 and controllable check valve 15 is connected to joint A11.More optimize, can
Control and storage tank 13 be set between check valve 15 and cylinder 4, storage tank 13 carries out tonifying Qi to cylinder 4 after the completion of inflation, prevent cylinder 4 or
Pipeline or valve gas leakage cause the thrust of cylinder 4 not enough.
The present invention principle be：After pipeline 10 is cut off, device of the present invention is arranged to the pipeline 10 for needing to block
Inside, source of the gas 14 is inflated by the air admission hole 151 of controllable check valve 15 to cylinder 4 and storage tank 13, and cylinder 4 promotes leather cup 2 and pressed
Tight two adjacent leather cups 2, the marginal position of dish-shaped leather cup 2, which is expanded and is pressed on the inwall of pipeline 10, realizes sealing.Pipeline 10 is welded
Connect after the completion of operation, after the inside pressurising to a certain extent of pipeline 10, the pressure of control interface 152 of controllable check valve 15 opens controllable
Check valve 15 realizes pressure release；Dish-shaped leather cup 2 resets under the thrust of its own resilient and compression spring 8, between leather cup 2 and pipeline 10
Thrust reduction, wiper of the present invention being capable of the easily discharge out of pipeline 10.
Claims (1)
1. before and after a kind of wiper for pipe plugging, including drive end bearing bracket, leather cup, cylinder, heart axle, controllable check valve, heart axle
End sets two leather cups respectively, and heart axle centre position sets cylinder, and mandrel end section installs drive end bearing bracket and rear end cap, controllable check valve
Steam vent connects cylinder, and controllable check valve air admission hole and control interface are connected respectively to heart axle front end and mandrels backend, its feature
It is：
Leather cup is the dish with centre bore, and heart axle passes through leather cup centre bore, and heart axle front and back end sets two leather cups respectively；Before heart axle
Two leather cups of end and rear end are positioned opposite respectively and are buckled together, and two adjacent leather cups are centrally formed a cavity, institute
State and compression spring is set in cavity；
Mandrels backend installs rear end cap, and is connected by the way of welding or screw thread or bolt；Heart axle front end is installed by front end
Cover and connected by the way of welding or screw thread or bolt；Connected between rear end cap and drive end bearing bracket and adjacent leather cup with bolt
Connect；
Cylinder is set between two leather cups in the middle of heart axle, and the cylinder is arranged in parallel with heart axle；The cylinder body and leather cup of cylinder it
Between mounting ring is set, the mounting ring is enclosed on heart axle, cylinder block be fixed to mounting ring on；
Heart axle front and back end sets axial hole respectively, the steam vent connection cylinder of controllable check valve, the air admission hole of controllable check valve and
Control interface is connected respectively to heart axle front end and mandrels backend by the axial hole of heart axle front and back end；Controllable check valve and cylinder it
Between storage tank is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610465568.XA CN106122671B (en) | 2016-06-23 | 2016-06-23 | A kind of wiper for pipe plugging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610465568.XA CN106122671B (en) | 2016-06-23 | 2016-06-23 | A kind of wiper for pipe plugging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106122671A CN106122671A (en) | 2016-11-16 |
| CN106122671B true CN106122671B (en) | 2017-10-20 |
Family
ID=57268607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610465568.XA Expired - Fee Related CN106122671B (en) | 2016-06-23 | 2016-06-23 | A kind of wiper for pipe plugging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106122671B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109794478A (en) * | 2019-02-27 | 2019-05-24 | 沈阳鑫联石化设备有限公司 | A kind of automatic compensating magnetic force scale removal pipe cleaner |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2828519Y (en) * | 2005-08-01 | 2006-10-18 | 江西泰达长林特种设备有限公司 | Plugging air bag |
| CN201871885U (en) * | 2010-11-25 | 2011-06-22 | 北京特种机械研究所 | Adjustable tensioning and supporting device |
| CN203533075U (en) * | 2013-09-18 | 2014-04-09 | 杭州天允科技有限公司 | Pipeline plug |
| CN204647716U (en) * | 2015-06-02 | 2015-09-16 | 宁波市宇华电器有限公司 | Detect plugging mechanism |
| CN105697921B (en) * | 2016-04-07 | 2017-09-15 | 西南石油大学 | A kind of Jackstay type oil-gas gathering and transferring pipeline plugging device |
-
2016
- 2016-06-23 CN CN201610465568.XA patent/CN106122671B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106122671A (en) | 2016-11-16 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171020 Termination date: 20180623 |
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| CF01 | Termination of patent right due to non-payment of annual fee |