CN101498394B - Oil gas pipeline rapid pressured plugging apparatus and plugging method - Google Patents
Oil gas pipeline rapid pressured plugging apparatus and plugging method Download PDFInfo
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- CN101498394B CN101498394B CN200910010707XA CN200910010707A CN101498394B CN 101498394 B CN101498394 B CN 101498394B CN 200910010707X A CN200910010707X A CN 200910010707XA CN 200910010707 A CN200910010707 A CN 200910010707A CN 101498394 B CN101498394 B CN 101498394B
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Abstract
The invention relates to an oil-gas pipeline rapid no-stop plugging device and an oil-gas pipeline rapid no-stop plugging method. The non-stop plugging device is provided with an internal steel cover and an external closed pipe which are sleeved together; the internal steel cover is a round pipe cover; the external wall of the internal steel cover is provided with an upper part and a lower part with different diameters; the outer diameter of the upper round pipe is smaller than that of the lower round pipe; the upper round pipe wall is provided with threads and screw nuts; the cover top is provided with an oblique draining opening; the upper end of the outer side of the cover top is provided with a horizontal pressing rod hole; a sealing ring is arranged on a saddle-shaped cover opening; the upper end of an external closed pipe is provided with an inward edge; an internal hole of the edge is sleeved on the upper round pipe; a sealing ring is arranged between the internal wall of the external closed pipe and the outer wall of the lower round pipe of the internal steel cover; and a binder filling hole is arranged at the side wall between the lower pipe opening of the external closed pipe and the sealing ring. The oil-gas pipeline rapid no-stop plugging device is provided with the steel cover, and the outer side of the steel cover is sleeved with the external closed pipe; when leaked points of an oil-gas pipeline are plugged, sequentially the steel cover is used to combine with the sealing ring and the external closed pipe is used to combine with the binders to carry out the rapid non-stop plugging of the leaked points on the oil-gas transportation pipeline in the process of the normal transportation of the oil-gas pipeline, so that the work amount is little, the consumed time is short, the cost is low and the normal transportation of oil and gas is not influenced in the process of plugging.
Description
Technical field
The present invention relates to the method for maintaining of a kind of oil and gas pipeline maintenance, particularly a kind of blocking device and method for blocking to the local leakage point quick pressurize on the oil and gas pipeline with Assisted Facility and a kind of oil and gas pipeline.
Background technique
Oil and gas pipeline is used for long-distance transfer oil and rock gas etc., and oil and gas pipeline has plenty of and is embedded in undergroundly, has plenty of on the ground, and the oil and natural gas in oil and gas pipeline is to carry under higher discharge pressure.Oil and gas pipeline is in long-term running; former thereby the local leakage points such as generation crack and hole because of machinery or chemical corrosion etc. take place in regular meeting; these local leakage points cause outflows that leak of the oil and natural gas in the oil and gas pipeline, and the waste that the outflow that leaks of oil and natural gas is not only resource also can cause security incident.Because the pressure in the oil and gas pipeline is very high, the effluent that leaks is flammable liquid or gas, and the leakage point on the shutoff oil and gas pipeline is very difficult.In the prior art, band press local leakage point on the quick blocking oil and gas pipeline method, be not suitable for device with local leakage point on the pressure quick blocking oil and gas pipeline yet.On the shutoff oil and gas pipeline during local leakage point, be take to stop to carry oil gas, interim shutoff leakage point, at the certain safe distance shutoff in the local leakage point both sides of oil and gas pipeline oil and gas pipeline, set up oil gas and carry the side pipeline, discharge the pressure that has in one section oil and gas pipeline of leakage point, one section series of steps such as oil and gas pipeline that replacing has leakage point is keeped in repair.This many, the consuming time length of method for maintaining recruitment, expense height, influence the normal conveying of oil gas to oil and gas pipeline with leakage point.When above-mentioned interim shutoff leakage point is to use interim blocking device, interim blocking device has steel cage, steel cage has the tubular shape cover body, there is the cover top top of tubular shape cover body, and there is draining hole on the cover top, and cover body has link, there is saddle type ring cover mouth the cover body lower end, the saddle type ring of cover mouth is that steel cage intersects the intersecting line ring that obtains with the oil and gas pipeline that local leakage point is arranged in the tubular shape, has along the closure gasket groove of saddle type ring cover mouth on the saddle type ring cover mouth, and seal ring is arranged in the closure gasket groove.During with the leakage point on the interim blocking device shutoff oil and gas pipeline, earlier steel cage is covered on the leakage point, by link steel cage is banded on the oil and gas pipeline tightly, connect drainage tube, the oil gas that leaks is guided to safe distant place at draining hole with chain.This interim blocking device can only be done interim shutoff to leakage point, and the cover mouth place of steel cage does not just have oil gas to spill substantially or also has slight seepage, and the welding of can not getting angry can not realize the local leakage point rapid pressured plugging on the oil and gas pipeline.
Summary of the invention
The objective of the invention is in order to overcome above-mentioned deficiency, propose a kind of on to oil and gas pipes few, the consuming time weak point of recruitment during the shutoff of local leakage point, expense low, do not influence normal oil gas pipeline rapid pressured plugging apparatus and the oil gas pipeline rapid pressured plugging method of carrying of oil gas.
The present invention is achieved using the following method.
Oil gas pipeline rapid pressured plugging apparatus has interior steel cage and the covering stopped pipe that is nested together, interior steel cage is the tubular shape cover, the outer wall of interior steel cage have external diameter different on, following two sections, the external diameter of epimere pipe is less than the external diameter of hypomere pipe, cover has oblique draining hole on the top, there is the pressure thick stick hole of level the upper end in the outside, cover top, there is saddle type ring cover mouth interior steel cage lower end, have along the closure gasket groove of saddle type ring cover mouth on the saddle type ring cover mouth, first seal ring is arranged in the closure gasket groove, there is chamfering at the saddle type ring cover mouth edge of interior steel cage lower end, the outer closure pipe box is at the hypomere pipe of interior steel cage, there is inside edge the upper end of covering stopped pipe, and the edge inner hole sleeve is at the epimere pipe of interior steel cage, and the outer wall of interior steel cage epimere pipe has screw thread, the helical thread portion that this screw thread is positioned at the place, top, edge of covering stopped pipe is rotary with nut, there is the saddle type solenostome covering stopped pipe lower end, between the outer wall of the inwall of covering stopped pipe and interior steel cage hypomere pipe second seal ring is arranged, and the lower end mouth of pipe of covering stopped pipe and the sidewall between second seal ring have hole for injecting glue.
The saddle type ring of the end shield mouth and the covering closed loop lower end mouth of pipe is steel cage and a covering closed loop and the crossing intersecting line ring that obtains of the oil and gas pipeline that local leakage point is arranged in the tubular shape of the present invention under the above-mentioned cover body.
The oil gas pipeline rapid pressured plugging method has the following steps:
1. get above-mentioned oil gas pipeline rapid pressured plugging apparatus, at the draining hole of oil gas pipeline rapid pressured plugging apparatus be linked in sequence drain valve and drainage tube;
2. the saddle type ring cover mouth of steel cage in the oil gas pipeline rapid pressured plugging apparatus is covered on the leakage point of oil and gas pipeline tightly towards the leakage point of oil and gas pipeline, steel cage is pressed in the pressure on the leakage point of oil and gas pipeline in keeping, the saddle type ring cover mouth of steel cage does not have hydrocarbon seepage in making, and flows to safe distant place through draining hole, drain valve and drainage tube again in the steel cage in the oil gas that allows the oil and gas pipeline leakage point leak to flow out enters;
3. with cleaning tool anticorrosive coat, oil and rust on the oil and gas pipes, around the interior steel cage saddle type ring cover mouth are cleaned out, exposed the oil and gas pipes steel surface of welding;
4. the nut in rotating on the steel cage epimere circular tube external wall, allowing nut move downward a covering stopped pipe presses downwards, the lower nozzle of covering stopped pipe is pressed on the oil and gas pipeline, inject sealer from the inwall and the gap between the interior steel cage outer wall of the outside sealed tube of hole for injecting glue of covering stopped pipe, make cover mouthful further sealing, stop oil gas fully through cover mouthful seepage;
5. the method with electric welding is welded in the lower end mouth of pipe that the covering stopped pipe is pressed on the oil/gas pipe pipeline outer wall on the oil/gas pipe pipeline outer wall;
6. close drain valve, remove drainage tube, cover with identical the going up of external diameter of covering stopped pipe with a cover mouthful external diameter in addition, the covering stopped pipe upper end of the cover mouth mask of last cover at oil gas pipeline rapid pressured plugging apparatus, cover top and drain valve are covered in the cover, welded together with the method for electric welding the upper end of the cover mouth of last cover and covering stopped pipe.
The present invention has interior steel cage, the outside of interior steel cage is with the covering stopped pipe, to the shutoff of oil and gas pipeline leakage point the time, priority is the local leakage point on the complete shutoff oil and gas pipeline of quick pressurize in the oil and gas pipes normal transportation process with interior steel cage combination seal ring and outer closure pipe jointing sealer, method with electric welding is welded on product of the present invention on the pipeline again, and few, the consuming time weak point of recruitment during shutoff, expense be low, do not influence oil gas normally carries.
Below in conjunction with drawings and Examples, the present invention is further described.
Description of drawings
Fig. 1 cuts open schematic representation by the master office of looking of a kind of oil gas pipeline rapid pressured plugging apparatus of invention scheme proposition of the present utility model;
Fig. 2 is that schematic representation cuts open in the side-looking office of Fig. 1;
Fig. 3 is that interior steel cage lower end has the master office of looking of the oil gas pipeline rapid pressured plugging apparatus of hole for injecting glue to cut open schematic representation;
Fig. 4 is that the closure gasket groove on the end shield mouth is that schematic representation cuts open in the master office of looking of the oil gas pipeline rapid pressured plugging apparatus of annular groove under the interior steel cage;
Fig. 5 is that schematic representation cuts open in the master office of looking that finishes the oil gas pipeline rapid pressured plugging apparatus behind the oil gas pipeline rapid pressured plugging.
Embodiment
Fig. 1, among Fig. 2, oil gas pipeline rapid pressured plugging apparatus has interior steel cage 1 and the covering stopped pipe 2 that is nested together, interior steel cage is the tubular shape cover, the outer wall of interior steel cage have external diameter different on, following two section 3,4, the external diameter of epimere pipe is less than the external diameter of hypomere pipe, cover has oblique draining hole 5 on the top, there is the pressure thick stick hole 6 of level the upper end in the outside, cover top, there is saddle type ring cover mouth 7 interior steel cage lower end, have along the ring ladder groove 8 of saddle type ring cover mouth on the saddle type ring cover mouth, first seal ring 9 is arranged in the ring ladder groove, there is chamfering 10 at the saddle type ring cover mouth edge of interior steel cage lower end, the outer closure pipe box is at the hypomere pipe of interior steel cage, there is inside edge 11 upper end of covering stopped pipe, the edge inner hole sleeve is at the epimere pipe of interior steel cage, the outer wall of interior steel cage epimere pipe has screw thread 12, the helical thread portion that this screw thread is positioned at the place, top, edge of covering stopped pipe is rotary with nut 13, there is saddle type solenostome 14 covering stopped pipe lower end, second seal ring 15 is arranged between the outer wall of the inwall of covering stopped pipe and interior steel cage hypomere pipe, and the lower end mouth of pipe of covering stopped pipe and the sidewall between second seal ring have hole for injecting glue 16.
In order to make the utility model in use, the saddle type ring cover mouth of interior steel cage lower end and oil and gas pipeline sealing sealing are reliable, in the lower end of interior steel cage hole for injecting glue can be arranged.In use, the cover of the present utility model mouthful leakage point towards oil and gas pipeline can inject sealer by the saddle type ring cover mouth and the gap between second seal ring of the inside steel cage of hole for injecting glue lower end after tightly covering on the leakage point of oil and gas pipeline.
Among Fig. 3, there is hole for injecting glue 17 the interior steel cage lower end of oil gas pipeline rapid pressured plugging apparatus.
The closure gasket groove of the saddle type ring cover mouth upper edge saddle type ring cover mouth of steel cage lower end is the ring ladder groove in above-mentioned.The closure gasket groove of the saddle type ring cover mouth upper edge saddle type ring cover mouth of interior steel cage lower end also can be an annular groove.
Among Fig. 4, the closure gasket groove under the interior steel cage of oil gas pipeline rapid pressured plugging apparatus on the end shield mouth is an annular groove 18.
Embodiment
The oil gas pipeline rapid pressured plugging method has the following steps:
1. get above-mentioned oil gas pipeline rapid pressured plugging apparatus, at the draining hole of oil gas pipeline rapid pressured plugging apparatus be linked in sequence drain valve and drainage tube;
2. with bolt oil gas pipeline rapid pressured plugging apparatus is fixed on the excavator bucket tooth, with excavator bucket the saddle type ring cover mouth of interior steel cage is covered on the leakage point of oil and gas pipeline tightly towards the leakage point of oil and gas pipeline, steel cage is pressed in the pressure on the leakage point of oil and gas pipeline in keeping by bucket, in pressing the thick stick hole, insert and press thick stick, be banded in oil gas pipeline rapid pressured plugging apparatus on the oil and gas pipeline tightly with chain, hole for injecting glue in interior steel cage lower end is injected sealer, the saddle type ring cover mouth of steel cage does not have hydrocarbon seepage in making, in the oil gas that allows the oil and gas pipeline leakage point leak to flow out enters in the steel cage again through draining hole, drain valve and drainage tube flow to safe distant place;
3. with cleaning tool anticorrosive coat, oil and rust on the oil and gas pipes, around the interior steel cage saddle type ring cover mouth are cleaned out, exposed the oil and gas pipes steel surface of welding;
4. the nut in rotating on the steel cage epimere circular tube external wall, allowing nut move downward a covering stopped pipe presses downwards, the lower nozzle of covering stopped pipe is pressed on the oil and gas pipeline, inject sealer from the inwall and the gap between the interior steel cage outer wall of the outside sealed tube of hole for injecting glue of covering stopped pipe, make cover mouthful further sealing, stop oil gas fully through cover mouthful seepage;
5. the method with electric welding is welded in the lower end mouth of pipe that the covering stopped pipe is pressed on the oil/gas pipe pipeline outer wall on the oil/gas pipe pipeline outer wall;
6. close drain valve, remove drainage tube, extract out and press thick stick, cover with identical the going up of external diameter of covering stopped pipe with a cover mouthful external diameter in addition, the covering stopped pipe upper end of the cover mouth mask of last cover at oil gas pipeline rapid pressured plugging apparatus, cover top and drain valve are covered in the cover, welded together with the method for electric welding the upper end of the cover mouth of last cover and covering stopped pipe.
Among Fig. 5, after finishing oil gas pipeline rapid pressured plugging, the saddle type ring cover mouth of interior steel cage lower end and the gap between the seal ring are marked with sealer 19, gap between the inwall of covering stopped pipe and the interior steel cage outer wall is marked with sealer 20, the lower end mouth of pipe of covering stopped pipe is welded on oil and gas pipeline 21 outer walls 22, covering stopped pipe upper end is welded on the cover mouth 24 of cover 23, and cover top 25 and drain valve 26 are in last cover.
Claims (6)
1. oil gas pipeline rapid pressured plugging apparatus, it is characterized in that: the interior steel cage and the covering stopped pipe that are nested together are arranged, interior steel cage is the tubular shape cover, the outer wall of interior steel cage have external diameter different on, following two sections, the external diameter of epimere pipe is less than the external diameter of hypomere pipe, cover has oblique draining hole on the top, there is the pressure thick stick hole of level the upper end in the outside, cover top, there is saddle type ring cover mouth interior steel cage lower end, have along the closure gasket groove of saddle type ring cover mouth on the saddle type ring cover mouth, first seal ring is arranged in the closure gasket groove, there is chamfering at the saddle type ring cover mouth edge of interior steel cage lower end, the outer closure pipe box is at the hypomere pipe of interior steel cage, there is inside edge the upper end of covering stopped pipe, the edge inner hole sleeve is at the epimere pipe of interior steel cage, the outer wall of interior steel cage epimere pipe has screw thread, the helical thread portion that this screw thread is positioned at the place, top, edge of covering stopped pipe is rotary with nut, there is the saddle type solenostome covering stopped pipe lower end, between the outer wall of the inwall of covering stopped pipe and interior steel cage hypomere pipe second seal ring is arranged, the lower end mouth of pipe of covering stopped pipe and the sidewall between second seal ring have hole for injecting glue.
2. by the described oil gas pipeline rapid pressured plugging apparatus of claim 1, it is characterized in that: there is hole for injecting glue the steel cage lower end in described.
3. by claim 1 or 2 described oil gas pipeline rapid pressured plugging apparatus, it is characterized in that: the closure gasket groove under the described interior steel cage on the end shield mouth is the ring ladder groove.
4. by claim 1 or 2 described oil gas pipeline rapid pressured plugging apparatus, it is characterized in that: the closure gasket groove under the described interior steel cage on the end shield mouth is an annular groove.
5. oil gas pipeline rapid pressured plugging method is characterized in that: have the following steps:
(1) get oil gas pipeline rapid pressured plugging apparatus,
Oil gas pipeline rapid pressured plugging apparatus has interior steel cage and the covering stopped pipe that is nested together, interior steel cage is the tubular shape cover, the outer wall of interior steel cage have external diameter different on, following two sections, the external diameter of epimere pipe is less than the external diameter of hypomere pipe, cover has oblique draining hole on the top, there is the pressure thick stick hole of level the upper end in the outside, cover top, there is saddle type ring cover mouth interior steel cage lower end, have along the closure gasket groove of saddle type ring cover mouth on the saddle type ring cover mouth, first seal ring is arranged in the closure gasket groove, there is chamfering at the saddle type ring cover mouth edge of interior steel cage lower end, the outer closure pipe box is at the hypomere pipe of interior steel cage, and there is inside edge the upper end of covering stopped pipe, and the edge inner hole sleeve is at the epimere pipe of interior steel cage, the outer wall of interior steel cage epimere pipe has screw thread, the helical thread portion that this screw thread is positioned at the place, top, edge of covering stopped pipe is rotary with nut, and there is the saddle type solenostome covering stopped pipe lower end, between the outer wall of the inwall of covering stopped pipe and interior steel cage hypomere pipe second seal ring is arranged, the lower end mouth of pipe of covering stopped pipe and the sidewall between second seal ring have hole for injecting glue
At the draining hole of oil gas pipeline rapid pressured plugging apparatus be linked in sequence drain valve and drainage tube;
(2) the saddle type ring cover mouth of steel cage in the oil gas pipeline rapid pressured plugging apparatus is covered on the leakage point of oil and gas pipeline tightly towards the leakage point of oil and gas pipeline, steel cage is pressed in the pressure on the leakage point of oil and gas pipeline in keeping, the saddle type ring cover mouth of steel cage does not have hydrocarbon seepage in making, and flows to safe distant place through draining hole, drain valve and drainage tube again in the steel cage in the oil gas that allows the oil and gas pipeline leakage point leak to flow out enters;
(3) with cleaning tool anticorrosive coat, oil and rust on the oil and gas pipes, around the interior steel cage saddle type ring cover mouth are cleaned out, exposed the oil and gas pipes steel surface of welding;
(4) nut on the steel cage epimere circular tube external wall in the rotation, allowing nut move downward a covering stopped pipe presses downwards, the lower nozzle of covering stopped pipe is pressed on the oil and gas pipeline, inject sealer from the inwall and the gap between the interior steel cage outer wall of the outside sealed tube of hole for injecting glue of covering stopped pipe, make cover mouthful further sealing, stop oil gas fully through cover mouthful seepage;
(5) method with electric welding is welded in the lower end mouth of pipe that the covering stopped pipe is pressed on the oil/gas pipe pipeline outer wall on the oil/gas pipe pipeline outer wall;
(6) close drain valve, remove drainage tube, cover with identical the going up of external diameter of covering stopped pipe with a cover mouthful external diameter in addition, the covering stopped pipe upper end of the cover mouth mask of last cover at oil gas pipeline rapid pressured plugging apparatus, cover top and drain valve are covered in the cover, welded together with the method for electric welding the upper end of the cover mouth of last cover and covering stopped pipe.
6. by the described oil gas pipeline rapid pressured plugging method of claim 5, it is characterized in that: there is hole for injecting glue the steel cage lower end in described, described step (2) is: the saddle type ring cover mouth of steel cage in the oil gas pipeline rapid pressured plugging apparatus is covered on the leakage point of oil and gas pipeline tightly towards the leakage point of oil and gas pipeline, steel cage is pressed in the pressure on the leakage point of oil and gas pipeline in keeping, in pressing the thick stick hole, insert and press thick stick, be banded in oil gas pipeline rapid pressured plugging apparatus on the oil and gas pipeline tightly with chain, hole for injecting glue in interior steel cage lower end is injected sealer, the saddle type ring cover mouth of steel cage does not have hydrocarbon seepage in making, in the oil gas that allows the oil and gas pipeline leakage point leak to flow out enters in the steel cage again through draining hole, drain valve and drainage tube flow to safe distant place; Described step (6) also further comprises: the cover mouth mask of last cover before the covering stopped pipe upper end of oil gas pipeline rapid pressured plugging apparatus, is extracted out and pressed thick stick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910010707XA CN101498394B (en) | 2009-03-17 | 2009-03-17 | Oil gas pipeline rapid pressured plugging apparatus and plugging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910010707XA CN101498394B (en) | 2009-03-17 | 2009-03-17 | Oil gas pipeline rapid pressured plugging apparatus and plugging method |
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| Publication Number | Publication Date |
|---|---|
| CN101498394A CN101498394A (en) | 2009-08-05 |
| CN101498394B true CN101498394B (en) | 2010-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910010707XA Expired - Fee Related CN101498394B (en) | 2009-03-17 | 2009-03-17 | Oil gas pipeline rapid pressured plugging apparatus and plugging method |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101893151B (en) * | 2010-07-23 | 2012-01-11 | 太原理工大学 | Device for emergently plugging risk source pipe orifice and rapid plugging method thereof |
| CN102848045B (en) * | 2011-06-30 | 2016-06-01 | 五冶集团上海有限公司 | The plugging hood removed for inflammable and explosive pipeline and using method thereof |
| CN103790554B (en) * | 2014-01-21 | 2017-05-17 | 中国石油大学(华东) | Rotating oil sucking pipe device used for deep-sea oil and gas well blowout |
| JP2017026060A (en) * | 2015-07-23 | 2017-02-02 | 本田技研工業株式会社 | Working oil supply pipe |
| CN105261985B (en) * | 2015-11-27 | 2017-08-25 | 国家电网公司 | The online blocking component of transformer oil leak and its encapsulating method |
| CN106015828B (en) * | 2016-07-18 | 2018-03-27 | 天津卓达管道机械制造有限公司 | A kind of pipeline pressure guiding pipe root plugging device |
| CN111102425A (en) * | 2020-01-21 | 2020-05-05 | 台山核电合营有限公司 | Pressurized sealing tool for internal leakage drain valve |
| CN112013199B (en) * | 2020-08-24 | 2022-08-12 | 王关红 | Universal type quick plugging device for oil pipe |
| CN115388247B (en) * | 2022-08-02 | 2023-08-01 | 湖南省特种设备检验检测研究院 | Emergency disposal method and device for broken leakage of tank car pipeline |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201377655Y (en) * | 2009-03-17 | 2010-01-06 | 杨立东 | Fast pressurized plugging device of oil and gas pipeline |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201377655Y (en) * | 2009-03-17 | 2010-01-06 | 杨立东 | Fast pressurized plugging device of oil and gas pipeline |
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| CN101498394A (en) | 2009-08-05 |
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