CN106195445A - A kind of for administering the sand throwing method that submarine pipeline is unsettled - Google Patents
A kind of for administering the sand throwing method that submarine pipeline is unsettled Download PDFInfo
- Publication number
- CN106195445A CN106195445A CN201610833235.8A CN201610833235A CN106195445A CN 106195445 A CN106195445 A CN 106195445A CN 201610833235 A CN201610833235 A CN 201610833235A CN 106195445 A CN106195445 A CN 106195445A
- Authority
- CN
- China
- Prior art keywords
- spacer sleeve
- main body
- unsettled
- sandbag
- self
- 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.)
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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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/16—Laying or reclaiming pipes on or under water on the bottom
-
- 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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/20—Accessories therefor, e.g. floats, weights
- F16L1/202—Accessories therefor, e.g. floats, weights fixed on or to vessels
- F16L1/207—Pipe handling apparatus
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a kind of for administering the sand throwing method that submarine pipeline is unsettled, employing following steps: one) after the position of unsettled seabed pipe determines, it is directed to rope from ramming ship to discharging under water, and the lower end of described guide rope is fixed at described unsettled seabed pipe；Two) sandbag is hung under water on automatic decoupling device, the employing shackle of described automatic decoupling device under water is hung on described guide rope；Three) described in, automatic decoupling device is carried at the described sandbag described unsettled seabed pipe of arrival by described guide rope under water, pulls the described rope that breaks off relations to discharge described sandbag.The present invention uses automatic decoupling device under water to carry sandbag, use guide rope to guide and arrive construction area, by pulling unhook rope release sandbag, the sandbag loss caused because of flow action during greatly reducing sand throwing, decrease labor intensity and time of staying under water of diver, add the accuracy of sand throwing.
Description
Technical field
The present invention relates to the unsettled Treatment process of submarine pipeline, particularly relate to a kind of for administering the throwing that submarine pipeline is unsettled
Method for determining sand.
Background technology
Submarine pipeline is an important component part in offshore oilfield production system, safeguards that the safety of submarine pipeline is to protect
Card safety in production and the important step protected the marine environment.If finding after early stage route survey that most of submarine pipeline occurs not
With the unsettled situation of degree, after professional assesses, find the most unsettled safe operation having had a strong impact on pipeline, with
Time also threaten the safety of the marine eco-environment, it is necessary to administer.The unsettled administering method of existing submarine pipeline mainly has: sandbag covers
Gai Fa, mechanical support method, paving imitative sod culture and jackstone landfill method etc., currently mainly use sandbag cladding process, material predominantly sea
The sandbag that husky and cement is filled after mixing by a certain percentage.Directly sandbag is thrown in water when construction, due to the effect of current,
Part sandbag can be caused to drift out construction area, in turn result in diver and arrange the workload of sandbag under water relatively greatly, the time of staying
Longer.In sum, existing sand throwing mode not only results in the wasting of resources, also add the underwater workload of diver and stops
Stay the time.
Summary of the invention
The present invention solves technical problem present in known technology and provide a kind of unsettled for administering submarine pipeline
Sand throwing method, the method sand throwing is accurate, and can greatly reduce the loss of sandbag, reduces diver's labor intensity and stops under water
Stay the time.
The present invention solves that technical problem is adopted the technical scheme that present in known technology: one is used for administering sea
The sand throwing method that bottom pipeline is unsettled, employing following steps:
One), after the position at unsettled seabed pipe determines, it is directed to rope from ramming ship to discharging under water, and leads described
It is fixed at described unsettled seabed pipe to the lower end of rope；Two) sandbag is hung under water on automatic decoupling device, by described under water from
Dynamic detacher uses shackle to hang on described guide rope；Described automatic decoupling device under water includes a master being connected with described shackle
Body, a rotation blocking arm and a rotation suspension hook；Described main body includes two pieces of spaced side shields of symmetry, two pieces of described sides
Baffle plate is fixed together by self-locking screw III, self-locking screw IV and self-locking screw V, and described self-locking screw III is installed on main body
In spacer sleeve I, described self-locking screw IV is installed in main body spacer sleeve II, and described self-locking screw V is installed on main body spacer sleeve III
In, described main body spacer sleeve I, described main body spacer sleeve II and described main body spacer sleeve III be all fixed in two pieces of described side shields it
Between, described main body spacer sleeve II uses elastomeric material to make；It is provided with on the top of described main body and to be connected with described shackle
Lifting hole(eyelet)；Described rotation blocking arm includes that two pivoted arms being fixed together, two described pivoted arms are symmetrically arranged the two of described main body
Side is the most hinged with described main body by described self-locking screw III；The free end of two described pivoted arms is connected to by self-locking screw I
Together, being provided with the blocking arm spacer sleeve I affixed with it on described self-locking screw I, self-locking spiral shell is passed through in the bottom of two described pivoted arms
Bolt II links together, and is provided with the blocking arm spacer sleeve II being rotationally connected with it on described self-locking screw II, and described blocking arm is spaced
Set II and described blocking arm spacer sleeve I are arranged between two described pivoted arms, are to be connected to break off relations on described blocking arm spacer sleeve I
Rope；The connection end of described rotation suspension hook is arranged between two pieces of described side shields and by described main body spacer sleeve III and described master
Body is hinged, is provided with and the draw-in groove of described blocking arm spacer sleeve II adaptation on described rotation suspension hook, when described rotation suspension hook locks,
Described rotation suspension hook vertically fixes on described blocking arm spacer sleeve II, and described main body spacer sleeve II is pressed on described rotation suspension hook
On；Described sandbag hangs on described rotation suspension hook；Three) described in, automatic decoupling device carries described sandbag by described guide rope under water
Arrive at described unsettled seabed pipe, pull the described rope that breaks off relations to discharge described sandbag.
The interval obturator being positioned at described body top it is provided with between two pieces of described side shields.
Described rotation suspension hook uses L-type structure, and the angle of described L-type structure is 115～125 °
Described side shield uses blade type structure.
The present invention has the advantage that with good effect:
1) use automatic decoupling device under water to carry sandbag, use guide rope to guide and arrive construction area, by pulling unhook
Rope release sandbag, the sandbag loss caused because of flow action during greatly reducing sand throwing, the work decreasing diver is strong
Degree and the under water time of staying, add the accuracy of sand throwing.
2) when rotating suspension hook locking, use elastic body spacer sleeve II to compress and rotate suspension hook, rotate suspension hook and use draw-in groove
Vertically is on blocking arm spacer sleeve II, it is possible to effectively prevents rotating suspension hook and gets loose when hanging sandbag, can effectively protect simultaneously
Card breaks off relations when sandbag discharges and is not affected by wave stream.
3) blocking arm spacer sleeve II uses rotation connection structure, it is possible to reduces resistance and realizes easily breaking off relations.
4) use of self-locking screw is prevented from bolt and gets loose under water, it is ensured that sand throwing operation can the entering of highly effective and safe
OK.
5) revolving meber and connector etc. all use high-grade stainless steel material, and the structure rotating suspension hook and rotation blocking arm is all examined
Consider the impact of underwater construction apoplexy, wave, stream, be suitable for underwater performance.
6) by adjusting the length of break off relations rope and guide rope, release under water and the unhook of different depth can be met.
7) use L-type to rotate suspension hook and can bear the weight of multiple sandbag, and the not hook sandbag when release.
8) present configuration is simple, and parts used are convenient to be obtained, easy to make.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention applies；
Fig. 2 is the front view that automatic decoupling device under water of the present invention is in the lock state；
Fig. 3 is the right view of Fig. 2；
Fig. 4 is the front view that automatic decoupling device under water of the present invention is in release conditions.
In figure: 1, unsettled seabed pipe, 2, sandbag, 3, under water automatic decoupling device, 31, main body, 311, side shield, 312, from
Lock bolt III, 313, self-locking screw IV, 314, self-locking screw V, 315 main body spacer sleeves I, 316, main body spacer sleeve II, 317, main
Body spacer sleeve III, 318, interval obturator, 319, lifting hole(eyelet)；32, rotate blocking arm, 321, self-locking screw I, 322, self-locking screw II,
323, blocking arm spacer sleeve I, 324, blocking arm spacer sleeve II, 325, pivoted arm；33, suspension hook is rotated；4, shackle, 5, break off relations rope, 6, guide
Rope, 7, ramming ship.
Detailed description of the invention
For the summary of the invention of the present invention, feature and effect can be further appreciated that, hereby enumerate following example, and coordinate accompanying drawing
Describe in detail as follows:
Refer to Fig. 1～Fig. 4, a kind of for administering the sand throwing method that submarine pipeline is unsettled, employing following steps:
One) after the position at unsettled seabed pipe 1 determines, be directed to restrict 6 from ramming ship 7 to discharging under water, and by institute
The lower end stating guide rope 6 is fixed at described unsettled seabed pipe 1.
Two) sandbag 2 is hung under water on automatic decoupling device 3, use shackle 4 to hang over institute described automatic decoupling device under water 3
State on guide rope 6.
Described automatic decoupling device under water 3 includes that a main body being connected with described shackle 4 31, rotates blocking arm 32 and
Individual rotation suspension hook 33.
Described main body 31 includes two pieces of spaced side shields of symmetry 311, and two pieces of described side shields 311 are by self-locking spiral shell
Bolt III 312, self-locking screw IV 313 and self-locking screw V 314 are fixed together, and described self-locking screw III 312 is installed between main body
In spacer I 315, described self-locking screw IV 313 is installed in main body spacer sleeve II 316, and described self-locking screw V 314 is installed on master
In body spacer sleeve III 317, described main body spacer sleeve I 315, described main body spacer sleeve II 316 and described main body spacer sleeve III 317 are equal
Being fixed between two pieces of described side shields 311, described main body spacer sleeve II 316 uses elastomeric material to make, preferably bullet
The elastomer material that property is higher；The lifting hole(eyelet) 319 being connected with described shackle 4 it is provided with on the top of described main body 31.
Described rotation blocking arm 32 includes that two pivoted arms being fixed together, two described pivoted arms are symmetrically arranged described main body
The both sides of 31 are the most hinged with described main body 31 by described self-locking screw III 312；The free end of two described pivoted arms 32 is by certainly
Lock bolt I 321 links together, and is provided with the blocking arm spacer sleeve I 323 affixed with it, two institutes on described self-locking screw I 321
The bottom stating pivoted arm 32 is linked together by self-locking screw II 322, is provided with company of rotation with it on described self-locking screw II 322
The blocking arm spacer sleeve II 324 connect, described blocking arm spacer sleeve II 324 and described blocking arm spacer sleeve I 323 are arranged at described in two turning
Between arm 32, described blocking arm spacer sleeve I 323 is to be connected to unhook rope 5.
The connection end of described rotation suspension hook 33 is arranged between two pieces of described side shields 311 and by described main body spacer sleeve
III 317 is hinged with described main body 31, is provided with and the draw-in groove of described blocking arm spacer sleeve II 324 adaptation on described rotation suspension hook 33,
When described rotation suspension hook 33 locks, described rotation suspension hook 33 vertically fixes on described blocking arm spacer sleeve II 324, described main body
Spacer sleeve II 316 is pressed on described rotation suspension hook 33.
Described sandbag 2 hangs on described rotation suspension hook 33.
Three) described in, automatic decoupling device 3 carries described sandbag 2 by described guide rope 6 and arrives described unsettled Submarine Pipeline under water
At section 1, pull the described rope 5 described sandbag 2 of release that breaks off relations.
In the present embodiment, above-mentioned main parts size structure, form and act on:
Described main body 31 is for being connected with guide rope 6, including two pieces of described side shields 311 being fixed together, described side
Baffle plate 311 uses blade type structure, to facilitate unhook.Use the main body spacer sleeve II 316 that elastomer material is made for hanging sandbag 2
Time auto lock rotate suspension hook 32, prevent rotate suspension hook 32 hang sandbag 2 time get loose.In the present embodiment, the most automatically take off
Hook device 3 and guide rope 6 use U-shaped shackle to be connected, for prevent guide rope 6 enter the described side shield 311 of main body 31 two pieces it
Between crack and strengthen agent structure, be provided with between two pieces of described side shields 311 be positioned at described main body 31 top interval fill
Body 318.Breaking off relations for convenience, described rotation suspension hook 33 uses the L-type structure, the angle of described L-type structure with 115～125 ° to be
Preferably, in the present embodiment, the angle of L-type structure is 120 °.Described rotation blocking arm 32 rotates suspension hook 33 for locking or release.Institute
State rotation suspension hook 33 to be made up of one block of L-type steel plate, be used for hanging or discharge sandbag 2.When breaking off relations, blocking arm spacer sleeve II 324 exists
Rotate under the effect of frictional force, it is possible to reduce resistance and realize easily breaking off relations.The present invention uses the self-locking screw can be in use process
In prevent bolt from getting loose under water；Rotate the draw-in groove on suspension hook 33, it is possible to prevent rotating suspension hook 33 and get loose.
Although the preferred embodiments of the present invention being described above in conjunction with accompanying drawing, but the invention is not limited in
The detailed description of the invention stated, above-mentioned detailed description of the invention is only schematically, is not restrictive, this area common
Technical staff, under the enlightenment of the present invention, in the case of without departing from present inventive concept and scope of the claimed protection, also may be used
To make a lot of form, within these belong to protection scope of the present invention.
Claims (4)
1. one kind is used for administering the sand throwing method that submarine pipeline is unsettled, it is characterised in that employing following steps:
One), after the position at unsettled seabed pipe determines, it is directed to rope from ramming ship to discharging under water, and by described guide rope
Lower end be fixed at described unsettled seabed pipe；
Two) sandbag is hung under water on automatic decoupling device, the employing shackle of described automatic decoupling device under water is hung over described guide rope
On；
Described automatic decoupling device under water includes that a main body being connected with described shackle, a rotation blocking arm and a rotation are hung
Hook；
Described main body includes two pieces of spaced side shields of symmetry, and two pieces of described side shields are by self-locking screw III, self-locking spiral shell
Bolt IV and self-locking screw V are fixed together, and described self-locking screw III is installed in main body spacer sleeve I, and described self-locking screw IV is worn
Being contained in main body spacer sleeve II, described self-locking screw V is installed in main body spacer sleeve III, described main body spacer sleeve I, described master
Body spacer sleeve II and described main body spacer sleeve III are all fixed between two pieces of described side shields, and described main body spacer sleeve II is to use
Elastomeric material is made；The lifting hole(eyelet) being connected with described shackle it is provided with on the top of described main body；
Described rotation blocking arm includes two pivoted arms being fixed together, and two described pivoted arms are symmetrically arranged the both sides of described main body
And it is hinged with described main body by described self-locking screw III；The free end of two described pivoted arms is connected to one by self-locking screw I
Rising, be provided with the blocking arm spacer sleeve I affixed with it on described self-locking screw I, self-locking screw is passed through in the bottom of two described pivoted arms
II links together, and is provided with the blocking arm spacer sleeve II being rotationally connected with it, described blocking arm spacer sleeve on described self-locking screw II
II and described blocking arm spacer sleeve I be arranged between two described pivoted arms, described blocking arm spacer sleeve I is be connected to break off relations rope；
The connection end of described rotation suspension hook is arranged between two pieces of described side shields and by described main body spacer sleeve III with described
Main body is hinged, is provided with and the draw-in groove of described blocking arm spacer sleeve II adaptation on described rotation suspension hook, when described rotation suspension hook locks
Time, described rotation suspension hook vertically fixes on described blocking arm spacer sleeve II, and described main body spacer sleeve II is pressed on described rotation and hangs
On hook；
Described sandbag hangs on described rotation suspension hook；
Three) described in, automatic decoupling device is carried at the described sandbag described unsettled seabed pipe of arrival by described guide rope under water, draws
The dynamic described rope that breaks off relations discharges described sandbag.
The most according to claim 1 for administering the sand throwing method that submarine pipeline is unsettled, it is characterised in that described in two pieces
The interval obturator being positioned at described body top it is provided with between side shield.
The most according to claim 1 for administering the sand throwing method that submarine pipeline is unsettled, it is characterised in that described rotation is hung
Hook uses L-type structure, and the angle of described L-type structure is 115～125 °.
The most according to claim 1 for administering the sand throwing method that submarine pipeline is unsettled, it is characterised in that described side shield
Use blade type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610833235.8A CN106195445A (en) | 2016-09-19 | 2016-09-19 | A kind of for administering the sand throwing method that submarine pipeline is unsettled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610833235.8A CN106195445A (en) | 2016-09-19 | 2016-09-19 | A kind of for administering the sand throwing method that submarine pipeline is unsettled |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106195445A true CN106195445A (en) | 2016-12-07 |
Family
ID=58067288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610833235.8A Pending CN106195445A (en) | 2016-09-19 | 2016-09-19 | A kind of for administering the sand throwing method that submarine pipeline is unsettled |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106195445A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626963A (en) * | 2016-04-11 | 2016-06-01 | 中国石油大学(华东) | Channel-type hanging submarine pipeline slinging treatment device and construction method thereof |
| CN109237124A (en) * | 2018-09-26 | 2019-01-18 | 中国石油大学(华东) | Aerial Submarine Pipeline improvement piles up constructing device with sand pocket |
| CN112500054A (en) * | 2020-11-18 | 2021-03-16 | 中海油能源发展股份有限公司 | Submarine pipe cable protective pad, content of submarine pipe cable protective pad and content preparation method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4329086A (en) * | 1979-06-20 | 1982-05-11 | Saipem S.P.A. | Method for laying an underwater pipe to straddle an already laid pipe, and the relative devices |
| CN2712855Y (en) * | 2004-07-09 | 2005-07-27 | 长兴欧德申机械有限公司 | Automatic unhooking device for hanging transfer chain |
| CN202953385U (en) * | 2012-11-12 | 2013-05-29 | 中国石油化工股份有限公司 | Seabed guide cage for oriented throwing of sand pocket |
| CN203095409U (en) * | 2012-12-26 | 2013-07-31 | 胜利油田龙玺石油工程服务有限责任公司 | Maritime sand-cast bottoming-type automatic tripping gear |
| CN203247009U (en) * | 2013-05-03 | 2013-10-23 | 中国葛洲坝集团股份有限公司 | Automatic detacher of under water hanging object |
| CN204737574U (en) * | 2015-06-03 | 2015-11-04 | 武汉二航路桥特种工程有限责任公司 | Automatic unhooking device under water who fills out is thrown in pier protection |
| CN105626963A (en) * | 2016-04-11 | 2016-06-01 | 中国石油大学(华东) | Channel-type hanging submarine pipeline slinging treatment device and construction method thereof |
-
2016
- 2016-09-19 CN CN201610833235.8A patent/CN106195445A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4329086A (en) * | 1979-06-20 | 1982-05-11 | Saipem S.P.A. | Method for laying an underwater pipe to straddle an already laid pipe, and the relative devices |
| CN2712855Y (en) * | 2004-07-09 | 2005-07-27 | 长兴欧德申机械有限公司 | Automatic unhooking device for hanging transfer chain |
| CN202953385U (en) * | 2012-11-12 | 2013-05-29 | 中国石油化工股份有限公司 | Seabed guide cage for oriented throwing of sand pocket |
| CN203095409U (en) * | 2012-12-26 | 2013-07-31 | 胜利油田龙玺石油工程服务有限责任公司 | Maritime sand-cast bottoming-type automatic tripping gear |
| CN203247009U (en) * | 2013-05-03 | 2013-10-23 | 中国葛洲坝集团股份有限公司 | Automatic detacher of under water hanging object |
| CN204737574U (en) * | 2015-06-03 | 2015-11-04 | 武汉二航路桥特种工程有限责任公司 | Automatic unhooking device under water who fills out is thrown in pier protection |
| CN105626963A (en) * | 2016-04-11 | 2016-06-01 | 中国石油大学(华东) | Channel-type hanging submarine pipeline slinging treatment device and construction method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626963A (en) * | 2016-04-11 | 2016-06-01 | 中国石油大学(华东) | Channel-type hanging submarine pipeline slinging treatment device and construction method thereof |
| CN105626963B (en) * | 2016-04-11 | 2017-09-01 | 中国石油大学(华东) | Channel-type Aerial Submarine Pipeline ramming controlling device and construction method |
| CN109237124A (en) * | 2018-09-26 | 2019-01-18 | 中国石油大学(华东) | Aerial Submarine Pipeline improvement piles up constructing device with sand pocket |
| CN109237124B (en) * | 2018-09-26 | 2020-05-12 | 中国石油大学(华东) | Sand bag piling construction device for seabed suspended pipeline treatment |
| CN112500054A (en) * | 2020-11-18 | 2021-03-16 | 中海油能源发展股份有限公司 | Submarine pipe cable protective pad, content of submarine pipe cable protective pad and content preparation method |
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Application publication date: 20161207 |