CN106122671A - A kind of wiper for pipe plugging - Google Patents
A kind of wiper for pipe plugging Download PDFInfo
- Publication number
- CN106122671A CN106122671A CN201610465568.XA CN201610465568A CN106122671A CN 106122671 A CN106122671 A CN 106122671A CN 201610465568 A CN201610465568 A CN 201610465568A CN 106122671 A CN106122671 A CN 106122671A
- Authority
- CN
- China
- Prior art keywords
- mandrel
- cylinder
- check valve
- leather
- leather cup
- 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.)
- Granted
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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
Abstract
The present invention relates to a kind of wiper for pipe plugging, the pipe plugging in pipeline welding operation process.Its technical scheme: mandrel front and back end is respectively provided with two leather cups, mandrel centre position arranges cylinder, mandrel end section installs drive end bearing bracket and rear end cap, and controllable check valve steam vent connects cylinder, gas control check valve air inlet and control interface and is connected respectively to mandrel front end and mandrels backend.The present invention uses machinery and baric systerm, without automatically controlled part, higher to oil and gas pipes safety in utilization；Undergauge reclaims, 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 blocks.
Background technology
In Oil & Gas Storage with city gas engineering, oil and gas conveying needs to lay long-distance large-caliber pipeline,
To in-service oil and gas pipes, along with pipeline service life increases, pipeline may cause brokenly because of the factor such as corrosion and fatigue and mechanical damage
Go bad and defect, or owing to the reasons such as urban construction need in-service pipeline to relocate, be required to in-service oil and gas pipes partial cut
After, again weld new pipeline, solder technology is involved in fire operation, for ensureing that construction safety needs to remain in the duct
Oil gas replace or block.
Existing Fire Work Technology mainly includes replacing Fire Work Technology, safety closure Fire Work Technology, wherein nitrogen replacement technique
Because having regulations for technical operation standard, control indexes is strict and is widely adopted, but in actual fire operation technology, originally
Replace qualified natural gas line, because inside exists the volatilization of condensate, cause permutizer condition in fire operation defective, need
Stopping welding, restart nitrogen displacement, until can continue after condition is qualified to get angry, this just extends the fire operation cycle, increases
Fire operation cost；Safe blocking technology have employing freeze plugging technology, this technology utilize solid water emulsifying agent at low temperatures with pipe
The viscous effect of freezing of wall realizes oil gas isolation, but this technology needs longer medium cooling time, early-stage preparations overlong time, moves
Fire operating cost increases.
Existing pipeline welding stopper, uses conventional hermetic type wiper to block, in relying on pipeline after having constructed
Medium promotes wiper to reclaim.Because using leather cup to seal with pipeline interference fit, for ensureing sealing effectiveness, pipeline
Excessive with the contact forces of wiper, removal process medium promotes difficulty big, easily causes wiper serious wear and pipe simultaneously
The problems such as road scratch.On the other hand, submarine pipeline underwater dry-type is welded, needs also exist for using closed type after pipe cutting
Wiper blocks, and pipeline section cover is got up and implements welding after draining by operating room.Under this operating mode, more require that wiper blocks
Effectively, liquid medium can not leak into welding position affects welding effect.
Based on above-mentioned technical background, spy of the present invention provides a kind of wiper for pipe plugging.
Summary of the invention
The purpose of the present invention: in order to overcome the closure of existing pipeline plug not tight and excessive the lacking of removal process resistance
Point, a kind of wiper for pipe plugging of special offer.
For reaching above-mentioned purpose, the present invention adopts the technical scheme that:
A kind of wiper for pipe plugging, including drive end bearing bracket, leather cup, cylinder, mandrel, controllable check valve, before mandrel
Rear end is respectively provided with two leather cups, and mandrel centre position arranges cylinder, and mandrel end section installs drive end bearing bracket and rear end cap, controlled unidirectional
Valve outlet hole connects cylinder, controllable check valve air inlet and control interface and is connected respectively to mandrel front end and mandrels backend, and it is special
Levy and be:
Leather cup is the dish of band centre bore, and mandrel passes leather cup centre bore, and mandrel front and back end is respectively provided with two leather cups；The heart
Two leather cups of axle front-end and back-end are the most positioned opposite and are buckled together, and two adjacent leather cups are centrally formed a sky
Chamber, more optimizes, and arranges compression spring in described cavity；
Mandrels backend installs rear end cap, and uses the mode of welding or screw thread or bolt to connect；Mandrel front end is installed
Drive end bearing bracket also uses the mode of welding or screw thread or bolt to connect；Bolt is used between rear end cap and drive end bearing bracket with adjacent leather cup
Connect；
Arranging cylinder between two leather cups in the middle of mandrel, described cylinder is arranged with centre axis parallel；The cylinder body of cylinder and skin
Arranging mounting ring between Wan, described mounting ring is enclosed within mandrel, and cylinder block is fixed in mounting ring；
Mandrel front and back end is respectively provided with axial hole, and the steam vent of controllable check valve connects cylinder, the air inlet of controllable check valve
Hole and control interface are connected respectively to mandrel front end and mandrels backend by the axial hole of mandrel front and back end；More optimize, can
Between control check valve and cylinder, storage tank is set.
The invention have the advantages that: 1, a kind of wiper for pipe plugging of the present invention, rely on dish
Leather cup struts sealing, and sealing effectiveness is easily guaranteed that；2, the present invention uses machinery and baric systerm, without automatically controlled part, to Oil/Gas Pipe
Road safety in utilization is higher；3, rely on pressure medium to trigger controllable check valve and open pressure release, easy to operate；4. undergauge reclaims, fall
The resistance of low removal process, reduces wiper blocking risk simultaneously.
Accompanying drawing explanation
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the baric systerm schematic diagram of the present 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. mandrel；10. pipeline；11. joint A；12. joint B；13. storage tanks；14. sources of the gas；15. controllable check valves；151. enter
Pore；152. control interface；153. steam vent.
Detailed description of the invention
The present invention is not limited by following embodiment, can determine according to technical scheme and practical situation
Specific embodiment.Below in conjunction with Fig. 1, Fig. 2, the present invention made following description.The position relationship of upper and lower, left and right etc. is to depend on
Determine according to the layout direction of Figure of description 1.
Leather cup 2 is the dish of band centre bore, and mandrel 9 is through leather cup 2 centre bore, and mandrel 9 front and back end is respectively provided with two skins
Bowl 2.Two leather cups 2 of mandrel 9 front end are positioned opposite and are buckled together, and two leather cups 2 of mandrel 9 front end are centrally formed one
Cavity, described cavity inside arranges compression spring 8.Two leather cups 2 of mandrel 9 rear end are positioned opposite and are buckled together, mandrel 9
Two leather cups 2 of rear end are centrally formed a cavity, and described cavity inside arranges compression spring 8.
Between two leather cups 2 in the middle of mandrel 9,2 cylinders 4 are set and are arranged symmetrically with, described cylinder 4 cloth parallel with mandrel 9
Putting, the cylinder body of cylinder 4 withstands on a leather cup 2 in the middle of mandrel 9, and the piston rod 5 of cylinder 4 withstands on another in the middle of mandrel 9
On leather cup 2.More optimizing, arrange mounting ring 3 between cylinder body and the leather cup 2 of cylinder 4, described mounting ring 3 is enclosed within mandrel 9,
Cylinder 4 cylinder body is fixed in mounting ring 3.More optimize, between piston rod 5 and the leather cup 2 of cylinder 4, support ring 6 is set, described
Support ring 6 is enclosed within mandrel 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 mandrel 9 rear end, and uses welding manner to connect；Mandrel 9 front end is installed drive end bearing bracket 1 and uses spiral shell
Stricture of vagina connects.More optimize, be connected with between rear end cap 7 and adjacent leather cup 2, between drive end bearing bracket 1 and adjacent leather cup 2, use spiral shell
Tether and connect.
Mandrel 9 front and back end is respectively provided with axial hole, and mandrel 9 centre position arranges joint A11 and joint B12 and uses screw thread
Connecting, joint A11 is connected to axial hole, mandrel 9 front end, and joint B12 is connected to axial hole, mandrel 9 rear end.Controllable check valve 15 sets
Being 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 hole 151 jointing A11 and controllable check valve 15 is connected to joint B12, or controllable check valve 15
The control interface 152 of air inlet 151 jointing B12 and controllable check valve 15 is connected to joint A11.More optimize, can
Control check valve 15 and cylinder 4 between storage tank 13 is set, inflated rear storage tank 13 and cylinder 4 carried out QI invigorating, prevent cylinder 4 or
Pipeline or valve gas leakage cause cylinder 4 thrust not enough.
The principle of the present invention is: after pipeline 10 cuts off, and device of the present invention is arranged at the pipeline 10 needing closure
Inside, cylinder 4 and storage tank 13 inflated by source of the gas 14 by the air inlet 151 of controllable check valve 15, and cylinder 4 promotes leather cup 2 and presses
Two the most adjacent leather cups 2, the marginal position of dish leather cup 2 is expanded and is pressed on pipeline 10 inwall and realizes sealing.Pipeline 10 welds
Connecing after operation completes, after the internal pressurising to a certain extent of pipeline 10, control interface 152 pressure of controllable check valve 15 is opened controlled
Check valve 15 realizes pressure release；Dish leather cup 2 resets, between leather cup 2 and pipeline 10 under the thrust of its own resilient and compression spring 8
Thrust reduce, wiper of the present invention can easily in pipeline 10 discharge.
Claims (1)
1. for a wiper for pipe plugging, including drive end bearing bracket, leather cup, cylinder, mandrel, controllable check valve, before and after mandrel
End is respectively provided with two leather cups, and mandrel centre position arranges cylinder, and mandrel end section installs drive end bearing bracket and rear end cap, controllable check valve
Steam vent connects cylinder, controllable check valve air inlet and control interface and is connected respectively to mandrel front end and mandrels backend, its feature
It is:
Leather cup is the dish of band centre bore, and mandrel passes leather cup centre bore, and mandrel front and back end is respectively provided with two leather cups；Before mandrel
Two leather cups of end and rear end are the most positioned opposite and are buckled together, and two adjacent leather cups are centrally formed a cavity, more
For optimize, in described cavity, compression spring is set；
Mandrels backend installs rear end cap, and uses the mode of welding or screw thread or bolt to connect；Installation front end, mandrel front end
Cover and use the mode of welding or screw thread or bolt to connect；Between rear end cap and drive end bearing bracket with adjacent leather cup with bolt even
Connect；
Arranging cylinder between two leather cups in the middle of mandrel, described cylinder is arranged with centre axis parallel；The cylinder body of cylinder and leather cup it
Between mounting ring is set, described mounting ring is enclosed within mandrel, and cylinder block is fixed in mounting ring；
Mandrel front and back end is respectively provided with axial hole, and the steam vent of controllable check valve connects cylinder, the air inlet of controllable check valve and
Control interface and be connected respectively to mandrel front end and mandrels backend by the axial hole of mandrel front and back end；More optimize, controlled list
To arranging storage tank between valve and cylinder.
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 true CN106122671A (en) | 2016-11-16 |
| CN106122671B 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) |
Cited By (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 |
Citations (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 |
| CN105697921A (en) * | 2016-04-07 | 2016-06-22 | 西南石油大学 | Bracing rod type plug of oil and gas gathering and transferring pipeline |
-
2016
- 2016-06-23 CN CN201610465568.XA patent/CN106122671B/en not_active Expired - Fee Related
Patent Citations (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 |
| CN105697921A (en) * | 2016-04-07 | 2016-06-22 | 西南石油大学 | Bracing rod type plug of oil and gas gathering and transferring pipeline |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106122671B (en) | 2017-10-20 |
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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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