CN112228689A - Anti-airflow device for welding oil and gas pipelines - Google Patents
Anti-airflow device for welding oil and gas pipelines Download PDFInfo
- Publication number
- CN112228689A CN112228689A CN202011076124.XA CN202011076124A CN112228689A CN 112228689 A CN112228689 A CN 112228689A CN 202011076124 A CN202011076124 A CN 202011076124A CN 112228689 A CN112228689 A CN 112228689A
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- China
- Prior art keywords
- air
- pipeline
- cylinder
- sliding
- fixed
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Abstract
The invention relates to an anti-airflow device for welding an oil-gas pipeline, which mainly comprises an inflation device, an air cylinder inflation pipeline, an air cylinder, a sliding support shaft, an air bag inflation pipeline, a universal joint, a fixed hinged support, a sliding hinged support, a multi-way joint, a centering wheel, a box body, an air bag, an air hose, an air bag air release valve, a bearing wheel, a fixed support shaft, a traction hinge and a tractor, wherein the structure of the anti-airflow device is symmetrical about the universal joint; the air charging device is arranged on the tractor, and charges air to the air cylinder through the air cylinder charging pipe and charges air to the air bag through the air bag charging pipe; the cylinder, the sliding support shaft, the fixed hinged support, the sliding hinged support, the centering wheel and the fixed support shaft are all arranged on the box body; the sliding hinged support slides under the action of the cylinder through a sliding groove in the box body, so that the fixed supporting shaft is driven to be spread, and the centering wheel acts on the pipeline to achieve the centering effect. The invention can be used for realizing the pressurized maintenance of in-service pipelines with the problems of cracks and the like.
Description
Technical Field
The invention relates to a pipeline device, in particular to an anti-airflow device for welding an oil-gas pipeline, belonging to the field of mechanical engineering or petroleum and natural gas engineering.
Background
In the process of national economic development, the oil and gas industry plays a very important role. For the oil and gas industry, oil and gas pipelines are important bridges for oil and gas development and are also important links for oil and gas transportation. Welding is an important link in oil and gas pipeline operation, and the quality of the welding process is directly related to the construction quality of the whole oil and gas pipeline engineering, so that the safe operation of the pipeline is influenced.
In the process of oil and gas transmission, the pipelines are influenced by multiple factors, so that the problems of breakage, leakage and the like are more and more, and the in-service pipelines need to be maintained and repaired. No matter the branch line is connected on the pipeline, or the pipeline is replaced or the corroded pipe section is reinforced, the pipeline generally needs to be welded, so that the technical requirement of in-service pipeline welding is continuously increased.
During station and pipeline welding construction, if the pipeline upper reaches take place the valve internal leakage, the inside air current of pipeline can be followed the welding seam and flowed out, and higher flow velocity can cause the influence to welding quality, and in addition, the flammable gas of effluvium can burn or explode under certain condition. And the light causes huge economic loss, and the heavy jeopardizes the life safety of people. In order to solve the problem that the air flow inside the pipeline flows out from the welding seam, an air flow preventing device for pipeline welding needs to be designed.
Disclosure of Invention
The purpose of the invention is: aiming at the difficulties, in order to realize the operation under pressure for maintaining the oil-gas pipeline with problems, the anti-airflow device for welding the oil-gas pipeline is specially provided.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a prevent air current device for oil gas pipeline welded, mainly by aerating device, cylinder inflation pipeline, cylinder, slip back shaft, gasbag inflation pipeline, universal joint, fixed free bearing, slip free bearing, multi-pass joint, centering wheel, box, gasbag, air hose, gasbag release valve, bearing wheel, fixed back shaft, pull hinge and tractor and constitute its characterized in that: the structure of the air flow prevention device is symmetrical about the universal joint; the air charging device is arranged on the tractor, and charges air to the air cylinder through the air cylinder charging pipe line and charges air to the air bag through the air bag charging pipe line; the cylinder, the sliding support shaft, the fixed hinged support, the sliding hinged support, the centering wheel and the fixed support shaft are all arranged on the box body; the air cylinders are uniformly distributed outside the box body and are connected with the sliding hinged support, the sliding hinged support and the fixed hinged support are connected together through the sliding support shaft and the fixed support shaft, the other end of the fixed support shaft is connected with the centering wheel, the sliding hinged support slides under the action of the air cylinders through the sliding groove in the box body, so that the fixed support shaft is driven to be spread, and the centering wheel acts on the pipeline to realize centering; the multi-way joint is arranged on the inflating device and is respectively connected with the inflating device, the cylinder inflating pipeline and the air bag inflating pipeline; the bearing wheels are used for supporting the weight of the box body and elements connected to the box body; the ventilation hose penetrates through the whole airflow preventing device, penetrates through the two air bags and is used for communicating the upstream and the downstream of the pipeline.
A be used for oil gas pipeline welded prevent air current device, its characterized in that: and an air bag air release valve is arranged on the air bag and used for releasing air from the air bag.
A be used for oil gas pipeline welded prevent air current device, its characterized in that: the tractor can realize remote control, and the traction hinge drives the whole device to move.
The invention has the beneficial effects that: (1) when the pipeline has the problems of cracks and the like and needs to be welded, the device can realize operation under pressure without stopping production and maintenance; (2) the device can be matched with a control system to realize remote control or wireless control.
Drawings
FIG. 1 is a schematic view showing the structure of an anti-airflow device for welding an oil and gas pipeline, in which an air bag is not attached to the inner wall of the pipeline.
FIG. 2 is a schematic structural view of an anti-airflow device for welding an oil and gas pipeline, wherein an air bag is attached to the inner wall of the pipeline.
In the figure: 1. the automatic air-filling device comprises an air charging device, 2 an air cylinder air charging pipeline, 3 an air cylinder, 4 a sliding support shaft, 5 an air bag air charging pipeline, 6 a universal joint, 7 a fixed hinged seat, 8 a sliding hinged seat, 9 a multi-way connector, 10 a centering wheel, 11 a box body, 12 an air bag, 13 a ventilation hose, 14 an air bag air release valve, 15 a bearing wheel, 16 a fixed support shaft, 17 a traction hinge and 18 a tractor.
Detailed Description
As shown in fig. 1 and 2, an anti-airflow device for welding an oil-gas pipeline mainly comprises an inflation device 1, a cylinder inflation pipeline 2, a cylinder 3, a sliding support shaft 4, an airbag inflation pipeline 5, a universal joint 6, a fixed hinge base 7, a sliding hinge base 8, a multi-way joint 9, a centering wheel 10, a box body 11, an airbag 12, an air hose 13, an airbag deflation valve 14, a bearing wheel 15, a fixed support shaft 16, a traction hinge 17 and a tractor 18, and is characterized in that: the structure of the air flow prevention device is symmetrical about the universal joint 6; the inflation device 1 is installed on a tractor 18, inflates a cylinder 3 through a cylinder inflation pipeline 2, and inflates an air bag 12 through an air bag inflation pipeline 5; the cylinder 3, the sliding support shaft 4, the fixed hinged support 7, the sliding hinged support 8, the centering wheel 10 and the fixed support shaft 16 are all arranged on the box body 11; the cylinders 3 are uniformly distributed outside the box body 11, the cylinders 3 are connected with the sliding hinged support 8, the sliding hinged support 8 and the fixed hinged support 7 are connected together through the sliding support shaft 4 and the fixed support shaft 16, the other end of the fixed support shaft 16 is connected with the centering wheel 10, the sliding hinged support 8 slides under the action of the cylinders 3 through the sliding groove in the box body 11, so that the fixed support shaft 16 is driven to be opened, and the centering wheel 10 acts on a pipeline to realize centering; the multi-way joint 9 is arranged on the inflating device 1, and the multi-way joint 9 is respectively connected with the inflating device 1, the cylinder inflating pipeline 2 and the air bag inflating pipeline 5; the bearing wheels 15 are used for supporting the weight of the box body 11 and elements connected to the box body 11; the air hose 13 extends through the entire anti-airflow device, through both air bags 12, and is used to connect the upstream and downstream of the duct.
A be used for oil gas pipeline welded prevent air current device, its characterized in that: the air bag 12 is provided with an air bag release valve 14 for releasing the air bag 12.
A be used for oil gas pipeline welded prevent air current device, its characterized in that: the tractor 18 can realize remote control, and the traction hinge 17 drives the whole device to move.
The air flow preventing device for welding the oil and gas pipeline has the working principle that: when the pipeline is welded, in order to prevent the air flow in the pipeline from leaking through cracks or holes to influence the welding process or cause safety accidents, the air flow prevention device is placed in the pipeline. The indexing carriage 18 of the present anti-airflow device is controlled by the control system so that the weld location is between the two airbags 12. When the air flow preventing device is not in operation, the weight of the air flow preventing device is borne by the wheels of the tractor 18 and the bearing wheels 15. When the anti-airflow device works, the cylinder 3 is inflated by the cylinder inflation pipeline 2, and the airbag 12 is inflated by the airbag inflation pipeline 5. In the process, the sliding hinged support 8 slides under the action of the cylinder 3 through a sliding groove on the box body 11, so that the fixed supporting shaft 16 is driven to be expanded, and the centering wheel 10 acts on the inner wall of the pipeline, so that the air flow preventing device is stabilized; meanwhile, the air bags 12 are expanded and tightly attached to the inner wall of the pipeline, so that a closed space is formed between the two expanded air bags 12, and the air flow in the pipeline is circulated by the ventilation hose 13, thereby avoiding the influence of the air flow on the pipeline welding position.
Claims (3)
1. The utility model provides a prevent air current device for oil gas pipeline welded, mainly by aerating device (1), cylinder inflation gas pipeline (2), cylinder (3), slip back shaft (4), gasbag inflation gas pipeline (5), universal joint (6), fixed free bearing (7), slip free bearing (8), many union joints (9), centering wheel (10), box (11), gasbag (12), air hose (13), the valve (14) are lost heart to the gasbag, bearing wheel (15), fixed back shaft (16), pull hinge (17) and tractor (18) and constitute, its characterized in that: the structure of the air flow prevention device is symmetrical about the universal joint (6); the inflation device (1) is installed on a tractor (18), inflates the cylinder (3) through a cylinder inflation pipeline (2), and inflates the airbag (12) through an airbag inflation pipeline (5); the cylinder (3), the sliding support shaft (4), the fixed hinged support (7), the sliding hinged support (8), the centering wheel (10) and the fixed support shaft (16) are all arranged on the box body (11); the air cylinders (3) are uniformly distributed outside the box body (11), the air cylinders (3) are connected with the sliding hinged support (8), the sliding hinged support (8) and the fixed hinged support (7) are connected together through the sliding support shaft (4) and the fixed support shaft (16), the other end of the fixed support shaft (16) is connected with the centering wheel (10), the sliding hinged support (8) slides under the action of the air cylinders (3) through the sliding grooves in the box body (11), so that the fixed support shaft (16) is driven to be unfolded, and the centering wheel (10) acts on a pipeline to realize centering; the multi-way joint (9) is arranged on the inflating device (1), and the multi-way joint (9) is respectively connected with the inflating device (1), the cylinder inflating pipeline (2) and the air bag inflating pipeline (5); the bearing wheels (15) are used for supporting the weight of the box body (11) and elements connected to the box body (11); the ventilation hose (13) penetrates through the whole air flow preventing device, passes through the two air bags (12) and is used for communicating the upstream and the downstream of the pipeline.
2. The anti-gas flow device for welding of oil and gas pipelines according to claim 1, wherein: and an air bag air release valve (14) is arranged on the air bag (12) and is used for releasing air from the air bag (12).
3. The anti-gas flow device for welding of oil and gas pipelines according to claim 1, wherein: the tractor (18) can realize remote control, and the traction hinge (17) drives the whole device to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011076124.XA CN112228689A (en) | 2020-10-10 | 2020-10-10 | Anti-airflow device for welding oil and gas pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011076124.XA CN112228689A (en) | 2020-10-10 | 2020-10-10 | Anti-airflow device for welding oil and gas pipelines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112228689A true CN112228689A (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011076124.XA Pending CN112228689A (en) | 2020-10-10 | 2020-10-10 | Anti-airflow device for welding oil and gas pipelines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112228689A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1164334A (en) * | 1966-03-07 | 1969-09-17 | Licencia Talalmanyokat | Process for Sealing, Strengthening or Waterproofing Objects. |
| US20070246115A1 (en) * | 2004-11-01 | 2007-10-25 | Richard Ord | Blocking Assembly |
| EP2287511A1 (en) * | 2009-08-18 | 2011-02-23 | Per Aarsleff A/S | Pipeline plug |
| CN105864560A (en) * | 2016-06-23 | 2016-08-17 | 西南石油大学 | Pipeline plugging device with resonance switch |
| CN106944776A (en) * | 2017-05-12 | 2017-07-14 | 烟台杰瑞石油装备技术有限公司 | A kind of plugging device for welded pipe line internal protection gas |
| CN108916527A (en) * | 2018-06-25 | 2018-11-30 | 卢素珠 | Automatic inflatable air sac is used in petroleum pipeline maintenance |
| CN208262121U (en) * | 2018-02-01 | 2018-12-21 | 中国核工业第五建设有限公司 | A kind of insides of pipes welding real time monitoring and inflatable protective device |
| CN109506070A (en) * | 2018-12-25 | 2019-03-22 | 中北大学 | Fast self-locking plugging device in pipeline |
| CN210266403U (en) * | 2019-08-09 | 2020-04-07 | 西南石油大学 | Oil gas pipeline robot |
| CN210319064U (en) * | 2019-07-25 | 2020-04-14 | 西南石油大学 | Wheeled robot for oil-gas pipeline |
| CN210878031U (en) * | 2019-10-10 | 2020-06-30 | 中冶天工集团天津有限公司 | Argon arc welds inside argon filling protection device |
-
2020
- 2020-10-10 CN CN202011076124.XA patent/CN112228689A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1164334A (en) * | 1966-03-07 | 1969-09-17 | Licencia Talalmanyokat | Process for Sealing, Strengthening or Waterproofing Objects. |
| US20070246115A1 (en) * | 2004-11-01 | 2007-10-25 | Richard Ord | Blocking Assembly |
| EP2287511A1 (en) * | 2009-08-18 | 2011-02-23 | Per Aarsleff A/S | Pipeline plug |
| CN105864560A (en) * | 2016-06-23 | 2016-08-17 | 西南石油大学 | Pipeline plugging device with resonance switch |
| CN106944776A (en) * | 2017-05-12 | 2017-07-14 | 烟台杰瑞石油装备技术有限公司 | A kind of plugging device for welded pipe line internal protection gas |
| CN208262121U (en) * | 2018-02-01 | 2018-12-21 | 中国核工业第五建设有限公司 | A kind of insides of pipes welding real time monitoring and inflatable protective device |
| CN108916527A (en) * | 2018-06-25 | 2018-11-30 | 卢素珠 | Automatic inflatable air sac is used in petroleum pipeline maintenance |
| CN109506070A (en) * | 2018-12-25 | 2019-03-22 | 中北大学 | Fast self-locking plugging device in pipeline |
| CN210319064U (en) * | 2019-07-25 | 2020-04-14 | 西南石油大学 | Wheeled robot for oil-gas pipeline |
| CN210266403U (en) * | 2019-08-09 | 2020-04-07 | 西南石油大学 | Oil gas pipeline robot |
| CN210878031U (en) * | 2019-10-10 | 2020-06-30 | 中冶天工集团天津有限公司 | Argon arc welds inside argon filling protection device |
Non-Patent Citations (1)
| Title |
|---|
| 闫宏伟等: "埋地管道泄漏内封堵装置设计与研究", 《石油机械》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20210115 |