CN104785853A - Submarine pipeline cutting equipment - Google Patents
Submarine pipeline cutting equipment Download PDFInfo
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- CN104785853A CN104785853A CN201510201062.3A CN201510201062A CN104785853A CN 104785853 A CN104785853 A CN 104785853A CN 201510201062 A CN201510201062 A CN 201510201062A CN 104785853 A CN104785853 A CN 104785853A
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Abstract
The invention aims at providing submarine pipeline cutting equipment. The submarine pipeline cutting equipment mainly comprises a supporting platform, a work platform, a feed guiding device, a mud cutter-suction system, a cutting system and the like. The mud cutter-suction system and the cutting system are arranged in a cylindrical protection cover, in the use process, the equipment is hoisted by a hoisting device on a mother ship and lowered to the position nearby facilities to be cut, and the facilities comprise ocean abandoned buildings, submarine pipelines, ocean platform guide pipe frame pile foundations, well mouth manifolds and other submarine oil and gas facilities. The submarine pipeline cutting equipment is flexible to operate in the work process, is not limited by structural styles or material compositions or postures of objects to be cut, and is an ideal, novel, efficient and environment-friendly underwater cutting machine tool.
Description
Technical field
What the present invention relates to is a kind of cutter sweep, specifically imderwater cutting device.
Background technology
Along with the very fast growth of current world economy, Land petroleum resource is more and more deficienter.In order to seek and tap a new source of energy, Marine oil and gas resource has all been concentrated one's gaze on sight in countries in the world.China marine site is vast, and offshore oil and gas resource, as one of the important form of marine economy, has become an important component part of China's energy supply.All exploitation of offshore oil and gas is being carried out in the marine site such as the East Sea, the South Sea.In the process of oil and gas development, people no longer content just in the starting aspect of Conventional marine industry, and each state all accelerates the paces of exploitation marine resources further.Since the sixties in 20th century, the exploitation of offshore oil enters climax, and 1,100 jacket platforms and other ocean engineering facility have been built up in sea.These ocean engineering facilities are that the development of human society brings huge energy wealth.Now, As time goes on the exhaustion of resource, offshore structures progressively completes their historic mission.Discarded ocean engineering facility can not be exposed on sea bed, must cut below mud face, how rationally to close these marine structures of disposal of rule, put in face of oil field development person.
The dismounting of offshore oil platform and submarine pipeline cutting are huge underwater construction engineerings, and this is determined by its job specification.High, the whole Job Operations flow process of this project modern technologies content is complicated, relate to that professional domain is extensive, engineering time long and will be subject to the restriction of the many factors such as economy, technology, safety, environmental protection; be one and have dangerous engineering; must not by its etc. be all install building course time simple contrary operation; in addition; for marine environment; this project itself is also potential pollution sources, once have an accident, will cause huge loss.
Due to structure and the external environment condition more complicated of ocean abandoned project facility, and the structure of a lot of oceans abandoned project facility is all be embedded in below seabed silt, in order to the regulation of the needs and the law of the sea that adapt to marine engineering, ocean abandoned project facility must be removed in time, and should cut below mud face.
Summary of the invention
The object of the present invention is to provide a kind of submarine pipeline cutting equipment that can adapt to mud face, seabed following cutting operation special operation condition.
The object of the present invention is achieved like this:
A kind of submarine pipeline cutting equipment of the present invention, is characterized in that: comprise support platform, workbench, feeding guider, diced system, Installation posture adjustment hydraulic cylinder between support platform and workbench, workbench is arranged guide rail and feeding hydrocylinder, feeding guider comprises feed unit, feed unit comprises the driving arm and bracing frame that are fixed together, the guide rail that bogie is arranged on workbench is connected with the output of feeding hydrocylinder, and driving arm and bracing frame outside install protective cover and lower protective cover respectively, and diced system comprises cutting frame, bead string rope, tensioning apparatus, main motion device, bead string rope feed arrangement, directive wheel, tensioning apparatus comprises tensioning leading screw, tensioning feed screw nut, tension pulley support, regulating wheel, regulating wheel is arranged on tension pulley support, and tension pulley support is fixed on tensioning feed screw nut, tensioning leading screw and tensioning leading screw nut screw connection, and tensioning leading screw is arranged on support guide, and main motion device comprises driving wheel, cut motor, cut motor and connect driving wheel, bead string rope feed arrangement comprises feeding motor, leading screw, feed screw nut, feed screw nut is fixed on below support guide, and leading screw coordinates with feed screw nut, and feeding motor connects leading screw, and described directive wheel has two, driving wheel, regulating wheel and two directive wheels lay respectively on four angles of cutting frame, and bead string rope is around driving wheel, on regulating wheel and two directive wheels, cutting frame is connected with feed screw nut, workbench is arranged feeding round guide, cutting frame is arranged the collar be enclosed within feeding round guide.
The present invention can also comprise:
1, also comprise strand and inhale mud system, strand is inhaled mud system and is comprised strand suction mud unit, and strand is inhaled mud unit and comprised the reamer be arranged in bracing frame, hydraulic drive motor, Pulp pump and pump drive motor, and hydraulic drive motor connects reamer, pump drive motor connects Pulp pump, and Pulp pump connects spoil disposal pipeline.
2, described feeding guider comprises two groups of feed units, described strand is inhaled mud system and is comprised two groups of strand suction mud unit, one group of feed unit and one group twist inhales mud unit matching, and the guide rail on the workbench matched and feeding hydrocylinder also comprise two respectively.
Advantage of the present invention is: the present invention is put into precalculated position, seabed and after adjusting attitude, first drives bogie by feeding hydrocylinder and then make feeding guider to lower feeding, close by the mud face of both sides, Pipe Cutting road gradually; And then playing the function that this equipment twists suction mud system, disposed by the silt being embedded in Near Pipelines, feeding guider continues descending, enters strand and inhales in the very heavy hole of mud system formation, for diced system hews out a passage; The last excision operation being completed the following works in mud face by diced system.This plant bottom case is fixed on sea bed by suction anchor, large with sea bed contact surface area, uniform force, structure ensure that the stability in cutting process and reliability, in addition on base, the control of pose adjustment hydraulic cylinder the attitude of full employment platform can be lowered, easy to operate.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is that strand of the present invention inhales mud system architecture schematic diagram;
Fig. 3 is diced system structural representation of the present invention;
Fig. 4 is the structural representation of diced system tensioning apparatus of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing citing, the present invention is described in more detail:
Composition graphs 1 ~ 4, the present invention mainly comprises the parts such as support platform 1, workbench 2, feeding guider 3, strand suction mud system 4 and diced system 5.Before cutting pipeline, the boom hoisting 15 first equipped by lowering equipment and this cutting is connected, and transfers on the precalculated position of sea bed by this equipment, by suction anchor 13, this equipment is fixed on seabed, then primer fluid pressure control system, workbench 2 is adjusted to suitable attitude, for cutting operation is ready by the pose adjustment hydraulic cylinder 12 controlled in support platform 1, then, feeding hydrocylinder 21 on workbench 2 is started working, promote feeding guider 3, move to mud face along workbench 2 upper rail 22 together with the strand suction mud system 4 on it and diced system 5, after strand suction mud system 4 is close to mud face, feeding hydrocylinder 21 slows down feeding, strand is inhaled mud system 4 and is started working, ocean being discarded silt near facility under sea bed or mud etc. rubs in muddy, seabed is transported to by spoil disposal pipeline, passage is formed for semi-circular frame 35 and diced system 5 enter below mud face, semi-circular frame 35 enters mud lower channel under the slow promotion of feeding hydrocylinder 21 simultaneously, after cylinder protective cover 32 arrives precalculated position, diced system 5 starts to start, main motion device 51 and cutting frame 54 are under the promotion of feed arrangement 53, what formed along cylinder protective cover 32 moves below mud face without silt cylindrical space, cutting operation under mud is carried out to ocean abandoned project facility.The main feature of this equipment is that below mud face, can discard Architectural Equipment to ocean carries out cutting operation, significantly can reduce the complexity of seabed cutting operation, improves operating efficiency, and can save a large amount of manpowers and material resources.This equipment is a kind of novel, green seabed cutting operation equipment.
This equipment mainly comprises the parts such as support platform 1, workbench 2, feeding guider 3, strand suction mud system 4 and diced system 5; wherein strand inhales mud system 4 and diced system 5 is arranged in cylinder protective cover 32, to be sling by this equipment and transfer near facility to be cut (comprising the sea-bottom oil-gas facility such as ocean abandoned building and submarine pipeline, ocean platform jacket pile foundation, wellhead manifold) during use by the lowering equipment on lash ship.Flexible operation during this equipment availability, by thing version to be cut, material composition and the restriction of pose, is a kind of imderwater cutting facility of ideal novel, efficient, environmental protection.
Support platform 1 is the pedestal of this cutting equipment, mainly plays a part to support and keep equipment job stabilization.Support platform base 11 directly and sea bed surface contact, and ensure enough intensity, rigidity and as far as possible large contact area, make uniform force, support platform 11 4 jiaos has installed suction anchor 13 respectively, it is made " to take root " in seabed, guarantee the stability of overall operation, certain shock-absorbing functions can be played simultaneously.Support platform 1 is provided with pose adjustment hydraulic cylinder 12, when cutting equipment does not work, pose adjustment hydraulic cylinder 12 piston rod bounces back, workbench 2 horizontal positioned, during cutting equipment work, pose adjustment hydraulic cylinder 12 piston rod stretches out, drive workbench 2 to rotate around bottom hinge device 14, when reaching predetermined attitude, pose adjustment hydraulic cylinder 12 is in packing state, support working platform keeps stable operating attitude, and the strand for this equipment inhales mud operation and cutting operation creates favorable conditions.
Workbench 2 can lower full employment attitude in the control of pose adjustment hydraulic cylinder 12, is the workbench of feeding guider 3, strand suction mud system 4 and diced system 5.Be provided with feeding hydrocylinder 21 and rectangular guideway 22, feeding hydrocylinder 21 can promote feeding guider 3 and move to mud face along rectangular guideway 22.
Feeding guider 3 is arranged symmetrically in workbench both sides; cylindrical shape (upper and lower protective cover); the passage of bead string rope turnover is provided with inside barrel; the edge of passage is provided with rubber weather strip 321; to ensure that bulky grain silt does not enter in feeding guider 3, provide protection to the diced system 5 be arranged on wherein.This device comprises bogie 31, upper protective cover, lower protective cover 32 (being concealed by upper protective cover in Fig. 1), dividing plate 33 and bracing frame 34 etc.Bogie 31 is connected by bolt with bracing frame 34; be arranged on workbench 2; bear the weight of upper and lower protective cover and feeding motor 532, speed change gear 533; simultaneously; bogie 31 can along rectangular guideway 22 to lower feeding under the driving of feeding hydrocylinder 21; drive strand suction mud system 4 and diced system 5 gradually near by Pipe Cutting road, for cutting operation is ready.
Arrange dividing plate 33 drive part of the bead string rope feed arrangement 53 of diced system 5 and main motion device 52 to be separated, be convenient to the installation of each parts.In addition, dividing plate is connected with feeding round guide 535 by connecting rod round guide 536, is convenient to whole system and moves back and forth on feeding guider 3.
Consider the special operation condition that cut works is embedded in below mud face, seabed, be provided with a pair twist at feeding guider 3 close to the end in mud face and inhale mud system 4, so that for the very heavy hole passage in below mud face opened by feeding guider 3, ensure that it enters the following desired depth in mud face smoothly, for diced system 5 forms operation path.Strand is inhaled the main bag enclosed of mud system 4 and is drawn together reamer 41, a pair inside engaged gear 42, shaft coupling 43, power transmission shaft 44, hydraulic drive motor 45, Pulp pump 46 and pump drive motor 47 etc.
Before cutting pipeline, reamer CD-ROM drive motor 45 drives reamer 41 High Rotation Speed by shaft coupling 43, gear 42, reamer is by loose for silt strand near works to be cut, simultaneously reamer 41 is twisted loose mud mixture and pumps out in time by Pulp pump 46 under the driving of motor 47, by the seabed that spoil disposal pipeline is discharged, form the very heavy hole that feeding guider 3 enters.
Diced system 5 adopts diamond bead string rope as cutting tool, is installed in feeding guider 3, mainly comprises tensioning apparatus 51, main motion device 52, bead string rope feed arrangement 53 and cutting frame 54, bead string rope 55, directive wheel 56.
Diamond bead string rope tensioning apparatus 51 mainly comprises tensioning leading screw 511, tensioning feed screw nut 512, tension pulley support 513 and regulating wheel 514, regulating wheel 514 is arranged on tension pulley support 513, tension pulley support 513 is connected on tensioning feed screw nut 512, and can move on support guide 5131, when tensioning leading screw 511 rotates (but not axially moving), can move back and forth along support guide 5131 under the drive of regulating wheel 514 on tensioning feed screw nut 512, tension pulley support 513, realize the tensioning of bead string rope and loosen.
Main motion device mainly comprises driving wheel 521, cuts motor 522 and transmission device 523, cuts motor 522 and drives driving wheel 521 High Rotation Speed by transmission device 523, and then drives the motion of bead string rope 55 high-speed circulating.
Driving wheel 521, regulating wheel 514 and directive wheel 56 are arranged on the corner of cutting frame 54 respectively, and bead string rope 55 is around on four wheels, and tensioning.Cutting frame 54 is connected with the feed screw nut 531 on bead string rope feed arrangement 53, when feeding motor 532 drives speed change gear 533 to make feed screw 534 rotate, feed screw nut 531 can drive cutting frame 54 to move back and forth along feeding round guide 535, realizes feeding and the rollback of bead string rope 55.
In the cylinder that the protective cover up and down that diced system 5 is placed on feeding guider 3 surrounds, in the passage that diced system 5 can be formed below mud face along upper and lower protective cover, realize the cutting operation of bead string rope 55 pairs of following works in mud face.
In this cutting equipment, support platform 1 as the pedestal of this equipment, directly and sea bed surface contact; Pose adjustment hydraulic cylinder 12 one end on it and support platform base 11 hinged, the other end and workbench 2 hinged; Boom hoisting 15 and suction anchor 13 are threaded connection.Fairlead on feeding guider 3 connects with the rail plate 22 of workbench 2; Flange on feeding hydrocylinder 21 on workbench 2 and the bogie 31 on feeding guider 3 are bolted.It is affixed that bogie 31 on device 3 and bracing frame 34 pass through bolt, and upper protective cover, lower protective cover 32 are connected with bogie 31, bracing frame 34 bolt; Dividing plate 33 is welded on bogie 31.Diced system 5 upper feeding round guide 535 two ends are thread forms, are fixed on bogie 31 by nut; Cutting frame 54 on it is connected with connecting rod round guide 536 by fairlead, and the bracing frame on main motion device 52 is then welded on cutting frame 54 other end; Both sides directive wheel 56 is connected with frame 54 bolt by self base; The bracing frame of tensioning apparatus 51 is also also be welded to connect with frame 54; Bead string rope 55 is gone up around four wheels and is in tensioning state.Strand is inhaled mud system 4 and is bolted in the bottom of bogie 31, it on reamer CD-ROM drive motor 41 and shaft coupling 43, shaft coupling with power transmission shaft 44, be all connected by key between axle with gear, final driving reamer 41 high-speed rotation.
Support platform cuts the pedestal of equipment under this ocean abandoned project facility mud, and support platform " is taken root " on sea bed by 4 suction anchors, and increase the contact area with sea bed as far as possible, makes uniform force, the stationarity of complete machine when guaranteeing that equipment runs.Support platform is provided with a pair pose adjustment hydraulic cylinder, when cutting equipment does not work, pose adjustment hydraulic cylinder piston rod stretches out, workbench is driven to rotate around bottom hinge device, when adjusting to predetermined attitude, the operating attitude that the pressurize of pose adjustment hydraulic cylinder makes support working platform keep stable, inhales mud operation and cutting operation for next step strand of this equipment and creates favorable conditions.
The carrier that workbench is feeding guider, strand inhales mud system and diced system, strand inhales the front end that mud system is arranged on feeding guider, and diced system is arranged in the cylinder of the upper and lower protective cover formation in feeding guider both sides.Feeding hydrocylinder cylinder barrel connects with workbench, and piston rod connects with feeding guider, and feeding hydrocylinder piston rod promotes feeding guider and moves to mud face along rectangular guideway.When feeding guider drives strand to inhale mud system close to mud face, start reamer motor and Pulp pump motor, reamer is by silt and sea water mixing, seabed is transported to by Pulp pump after forming mud, the cylinder of feeding guider both sides enters in the very heavy hole of reamer formation under the promotion of feeding hydrocylinder simultaneously, for the cutting operation of diamond bead string rope diced system provides passage.
Diced system is arranged in the protective cover of feeding guider, and protective cover is made up of upper and lower two parts, has both been convenient to processing, has been convenient to again the installment and debugging of diced system.Lower clapboard is equipped with in two protective covers, gripper shoe, the cylindrical guide of ring holder and bead string rope feed arrangement, and need to ensure the strength and stiffness in cutting operation process, the worm and gear of bead string rope feeding drive mechanism is arranged on upper spacer, leading screw is arranged between upper spacer and gripper shoe, article two, cylindrical guide is arranged between gripper shoe and lower clapboard, main motion device is connected by the feed screw nut of installing plate and one of them lift, tensioning apparatus is connected by the feed screw nut of installing plate and another lift, main motion device and guider are connected by parallel chord truss, truss is provided with fairlead near directive wheel side, match with cylindrical guide, in like manner, tensioning apparatus and another guider are also be connected by parallel chord truss, this truss is also provided with fairlead near directive wheel side, and match with this side cylindrical guide.Be provided with sealing strip between upper and lower protective cover, prevent silt from entering in protective cover, realize the protection to diced system, protective cover is provided with abrasive rubber in bead string rope turnover side, avoids bead string rope to damage sealing strip or protective cover.During diced system operation, main motion motor driving driving wheel High Rotation Speed, two feeding motors are slowed down by worm and gear, feed screw nut simultaneously, and feed screw nut promotes cutting frame to the cutting target travel below mud face, implement cutting operation to the following works in mud face.
The clack box that underwater hydraulic controls and detection system are arranged on the basic machine of diced system, when cutting equipment is placed into seabed, first detection system works, detect by Pipe Cutting road whether in the scope that this equipment cuts, carry out strand after confirming again and inhale mud and bead string rope cutting operation, otherwise need the installation site readjusting equipment, until by Pipe Cutting road in the scope that this equipment cuts.
The course of work of equipment is cut under the abandoned project facility mud of ocean:
1. hung by the A on working mother boat and be connected with the boom hoisting 15 of cutting equipment, cutting equipment lifts by crane, transfer on the sea bed near works to be cut, suitable position is adjusted under the cooperation of diver or ROV, diver or ROV evacuate to place of safety, and send work order to lash ship operating personnel, the lash ship that proceeds with one's work sends the instruction of device location detection control, feeding hydrocylinder 21 setting in motion on workbench 2, promote feeding guider 3 and the suction of the strand above it mud system 4 and diced system 5 to move back and forth on workbench 2, detect works to be cut whether in the cutting frame of this diced system 5, if thing to be cut is in cutting frame, carry out next step command operating, otherwise, needing slings again by it adjusts to correct position, carry out above-mentioned detection again.
2. riding position detects by rear, working mother boat sends attitude regulating command, the a pair pose adjustment hydraulic cylinder 12 be arranged in support platform 1 is started working, workbench 2 is adjusted to suitable angle and keeps this attitude stabilization motionless, for ensuing strand inhale mud operation and cutting operation ready.
3. after attitude stabilization, working mother boat sends feeding guider 3 feeding instruction, feeding hydrocylinder 21 on workbench 2 is started working, promote feeding guider 3 (comprise strand and inhale mud system 4 and diced system 5) to move down along the workbench of the attitude adjusted before, feeding guider 3 gradually near works to be cut until suitable position.
4. after distance pipeline correct position adjusted to by feeding guider 3, working mother boat sends strand and inhales mud instruction, strand is inhaled mud system 4 and is started working, reamer 41 rotates under the driving of reamer CD-ROM drive motor 45, by loose for silt strand and after forming mud with sea water mixing, be transported to seabed by Pulp pump 46 under the driving of Pulp pump motor 47, formation feeding guider 3 enters the very heavy hole in mud face, after feeding guider 3 reaches precalculated position, strand is inhaled mud system 4 and is quit work.
5. working mother boat sends instruction to diced system 5, and diced system 5 is started working, and cuts motor 522 and drives driving wheel 521 High Rotation Speed by transmission device 523, drives the motion of diamond bead string rope high-speed circulating; The motor of feeding simultaneously 532 drives leading screw 534 to rotate by speed change gear 533, and then makes feed screw nut 531 drive cutting frame 54 to the works motion to be cut below mud face, and implements cutting operation to it.
6. by feeding displacement and the operating pressure of the control panel display cutting equipment on working mother boat, judge whether cutting operation completes, after cutting completes, send instruction feed-disabling immediately and move and cutting movement, diced system 5 is return, feeding guider is return, workbench resets.
7., under the cooperation of diver or ROV, hung by the A on working mother boat and cutting equipment is sling, be recovered on working mother boat.
8. according to maintenance manual, maintenance is timely carried out to this cutting equipment, extend its service life.
Claims (3)
1. a submarine pipeline cutting equipment, is characterized in that: comprise support platform, workbench, feeding guider, diced system, Installation posture adjustment hydraulic cylinder between support platform and workbench, workbench is arranged guide rail and feeding hydrocylinder, feeding guider comprises feed unit, feed unit comprises the driving arm and bracing frame that are fixed together, the guide rail that bogie is arranged on workbench is connected with the output of feeding hydrocylinder, and driving arm and bracing frame outside install protective cover and lower protective cover respectively, and diced system comprises cutting frame, bead string rope, tensioning apparatus, main motion device, bead string rope feed arrangement, directive wheel, tensioning apparatus comprises tensioning leading screw, tensioning feed screw nut, tension pulley support, regulating wheel, regulating wheel is arranged on tension pulley support, and tension pulley support is fixed on tensioning feed screw nut, tensioning leading screw and tensioning leading screw nut screw connection, and tensioning leading screw is arranged on support guide, and main motion device comprises driving wheel, cut motor, cut motor and connect driving wheel, bead string rope feed arrangement comprises feeding motor, leading screw, feed screw nut, feed screw nut is fixed on below support guide, and leading screw coordinates with feed screw nut, and feeding motor connects leading screw, and described directive wheel has two, driving wheel, regulating wheel and two directive wheels lay respectively on four angles of cutting frame, and bead string rope is around driving wheel, on regulating wheel and two directive wheels, cutting frame is connected with feed screw nut, workbench is arranged feeding round guide, cutting frame is arranged the collar be enclosed within feeding round guide.
2. a kind of submarine pipeline cutting equipment according to claim 1, it is characterized in that: also comprise strand and inhale mud system, strand is inhaled mud system and is comprised strand suction mud unit, strand is inhaled mud unit and is comprised the reamer be arranged in bracing frame, hydraulic drive motor, Pulp pump and pump drive motor, hydraulic drive motor connects reamer, pump drive motor connects Pulp pump, and Pulp pump connects spoil disposal pipeline.
3. a kind of submarine pipeline cutting equipment according to claim 2, it is characterized in that: described feeding guider comprises two groups of feed units, described strand is inhaled mud system and is comprised two groups of strand suction mud unit, one group of feed unit and one group twist inhales mud unit matching, and the guide rail on the workbench matched and feeding hydrocylinder also comprise two respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510201062.3A CN104785853A (en) | 2015-04-24 | 2015-04-24 | Submarine pipeline cutting equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510201062.3A CN104785853A (en) | 2015-04-24 | 2015-04-24 | Submarine pipeline cutting equipment |
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| CN104785853A true CN104785853A (en) | 2015-07-22 |
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| CN201510201062.3A Pending CN104785853A (en) | 2015-04-24 | 2015-04-24 | Submarine pipeline cutting equipment |
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| CN1531616A (en) * | 2001-03-20 | 2004-09-22 | TS˹����˼����������ι�˾ | Method and apparatus for cutting underwater structures |
| US20070169606A1 (en) * | 2005-11-28 | 2007-07-26 | Graham Bone | Power tool having means for removing debris from workpiece |
| CN101468409A (en) * | 2007-12-24 | 2009-07-01 | 中国海洋石油总公司 | Tension device of underwater diamond rope saw |
| CN204135461U (en) * | 2014-10-13 | 2015-02-04 | 中石化胜利油建工程有限公司 | Steel pipe cutting equipment under water |
| CN204673074U (en) * | 2015-04-24 | 2015-09-30 | 哈尔滨工程大学 | A kind of submarine pipeline cutting equipment |
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2015
- 2015-04-24 CN CN201510201062.3A patent/CN104785853A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1531616A (en) * | 2001-03-20 | 2004-09-22 | TS˹����˼����������ι�˾ | Method and apparatus for cutting underwater structures |
| US20070169606A1 (en) * | 2005-11-28 | 2007-07-26 | Graham Bone | Power tool having means for removing debris from workpiece |
| CN101468409A (en) * | 2007-12-24 | 2009-07-01 | 中国海洋石油总公司 | Tension device of underwater diamond rope saw |
| CN204135461U (en) * | 2014-10-13 | 2015-02-04 | 中石化胜利油建工程有限公司 | Steel pipe cutting equipment under water |
| CN204673074U (en) * | 2015-04-24 | 2015-09-30 | 哈尔滨工程大学 | A kind of submarine pipeline cutting equipment |
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Application publication date: 20150722 |