CN103419904B - Float-type tension force muscle tendon and mounting means - Google Patents
Float-type tension force muscle tendon and mounting means Download PDFInfo
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- CN103419904B CN103419904B CN201310362882.1A CN201310362882A CN103419904B CN 103419904 B CN103419904 B CN 103419904B CN 201310362882 A CN201310362882 A CN 201310362882A CN 103419904 B CN103419904 B CN 103419904B
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Abstract
The invention provides a kind of float-type tension force muscle tendon, muscle tendon is for tension leg platform (TLP), and the two ends of muscle tendon are connected with offshore platform main body, the underwater foundation that is positioned at seabed respectively, and muscle tendon comprises muscle tendon main body, and muscle tendon main body is one to be fixed with the flexible strand of multiple floating drums; Muscle tendon main body is connected with offshore platform main body by marine connection cord, muscle tendon main body is passed through connection cord under water and is connected with underwater foundation, marine connection cord is provided with the first shackle away from one end of offshore platform main body, connection cord is provided with the second shackle away from one end of underwater foundation under water, the two ends of flexible strand are provided with the collar, and two collars are connected with the first shackle, the second shackle respectively. The present invention also provides a kind of mounting means of above-mentioned float-type tension force muscle tendon. Float-type tension force muscle tendon of the present invention and mounting means, without withstand voltage and connectivity problem, reduce risk in use, reduces processing capacity, reduces connection construction amount, easily buying, and cost is low, and marine installation effectiveness is high, easy to implement.
Description
Technical field
The present invention relates to a kind of float-type tension force muscle tendon.
The invention still further relates to a kind of mounting means of float-type tension force muscle tendon.
Background technology
China marine site is vast, is containing very abundant petroleum resources and is urgently developing. 3-1 gas field, Li Gulf, the South Sea in 2007 greatFind, make to find at the South Sea prospect in deep water hydrocarbon field more wide. The deepwater regions petroleum resources that is richly stored with, has richRich natural gas hydrate resources. Petroleum-in-place is about 23,000,000,000～30,000,000,000 tons, accounts for three points of China's oil gas total resourcesOne of, wherein 70% contains in region, deep-sea, but the current oil and gas development of China also mainly concentrates on land and coastal waters. Along with the whole worldThe growth of energy resource consumption demand, in strengthening existing resource exploitation dynamics, opens up deep-sea oil gas exploration and development field to seekNew resource is the current main task facing. Ocean deepwater oil and gas development relates to multi-field, multi-disciplinary research, and China mustMust, for the special environment condition innovation platform structural shape of China's ocean deepwater, strengthen experimental study and engineering Application Research, addThe detection Study on Monitoring Technology of strong structure and facility, further carries out the research of project management and security risk aspect. Marine oil and gasExploitation is high-tech, high investment, high risk cause. Therefore,, in the time of exploitation marine oil and gas resource, must pay attention to " in earlier stageScientific research, technological innovation, science decision and benefit first " oil and gas development behavioural norm, make great efforts to increase economic efficiency. Only haveConstantly accelerate, strengthen external cooperation, could promote quickly and effectively the development and production of South China Sea Deep Water petroleum resources.
Along with the development of exploitation of offshore oil and gas, there is variation with rapid changepl. never-ending changes and improvements in Offshore Engineering technology, at deep water hydrocarbonIn the exploitation of field, traditional jacket platform and gravity platform are just progressively replaced by deepwater floating platform and subsea production system,Design, the building technology of all kinds deep water platform are constantly perfect. At present, the whole world existing more than 2300 overlap underwater production facilities,204 deep water platforms operate in Ge great marine site, the whole world, and maximum operating water depth tension leg platform (TLP) has reached 1434m, and SPAR is2073m, floating production storage unit is 1900m, multi-functional semisubmersible platform reaches that 1920m is above, underwater operation machinePeople exceedes 3000m, and adopting the oil gas field maximum water depth of production technology exploitation is under water 2192m, and the maximum probing depth of water is 3095M. Meanwhile, deepwater drilling equipment and pipelaying work technology are also developed rapidly, and existing 14 the in-service probings in the whole world are establishedExecute and possess the 3000m of carrying out depth of water drilling operation ability, the 5th generation, the 6th generation deep water semi-submersible drilling platform and drill ship buildingIn making. Wherein, the 6th generation deepwater drilling ship operating depth will reach 3658m, drilling depth can reach 11000m, deep water risesThe elevating capacity of heavy pipe laying barge reaches 14000 tons, and the Underwater Welding degree of depth is 400m, and the underwater maintenance degree of depth is 2000m, deep water pavingLength of tube reaches 12000km.
China's ocean deepwater region has abundant petroleum resources, but the special natural environment of deepwater regions and complicated hydrocarbon storageConditional decision deepwater petroleum exploration exploitation there is high investment, high repayment, high-tech, high risk feature. Up to now, IWithin state's Offshore Engineering ability to develop independently and practical experience only limit to the 200m depth of water, with external deep water Offshore EngineeringThe develop rapidly of technology still has very large distance, and technical huge spread is the ultimate challenge that the exploitation of China's deep water hydrocarbon field faces,Therefore the spanning development that realizes deep water technology is key point. Under the support of National 863 plan, deep water hydrocarbon field development techniquePlatform is built.
Tension leg platform (TLP) is applicable to compared with deepwater field (300～1500m) and the larger oil field of recverable oil gas reserves. Tension leg platform (TLP) oneAs formed by several parts such as upper module, deck, hull (lower caisson), tension force muscle tendon and anchor system, bases. Its hull (sinksCase) can be three, four or organize caisson more, divide into 3～6 groups or organize the vertical and seabed grappling of tension force muscle tendon more. Tension leg platform (TLP) isA compliant platform for vertical mooring, is mainly divided into three kinds of versions at present. The first is traditional tension leg platform (TLP), oneAs formed by five parts, be respectively platform upper, column (containing stull and diagonal brace), lower body (caisson), tension leg anchoring systemAnd anchor foundation. Tension leg platform (TLP), by the version of self, produces the buoyancy much larger than dead load, and buoyancy is offset deadweightAfter surplus buoyancy and pretension balance. Pretension acts in vertical tension leg system, makes always stretching tight in tension of tension legTight state. The second is mini tension leg platform (TLP), and mini tension leg platform (TLP) is not a kind of tension leg platform (TLP) of simple downsizing,By platform upper, column and tension leg system are carried out to structural improvement, thereby reach the object of Optimal Parameters. MiniTension leg platform (TLP) volume is little, cost is low, flexibility is good, affected by environment little, be applicable to exploitation in small oil field. The third is to extendFormula tension leg platform (TLP), is also referred to as novel four post platforms, is to be developed by conventional tension leg, and the improvement of structure mainly concentrates onThe principal of platform. Traditional tension leg platform (TLP), 4 root posts of main platform body are positioned at the outer of main body, are in respectively masterOn 4 angles of body, in the design of extension tension leg platform (TLP), column is no longer positioned at the outer of main body, but to platform centerA mobile segment distance, thus column spacing dwindled, like this can more effective support Texas deck and bearing load.
Above-mentioned several tension leg platform (TLP), owing to using steel pipe type tension force muscle tendon, all has that complex structure, installation effectiveness are low, costThe shortcomings such as height.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of float-type tension force muscle tendon and mounting means,Adopt traditional steel pipe type tension force muscle tendon for solving prior art tension leg platform (TLP), complex structure, installation effectiveness are low, costHigh problem.
For achieving the above object and other relevant objects, the invention provides a kind of float-type tension force muscle tendon, muscle tendon is flat for tension legPlatform, the two ends of muscle tendon are connected with offshore platform main body, the underwater foundation that is positioned at seabed respectively, and muscle tendon comprises muscle tendon main body, muscle tendonMain body is one to be fixed with the flexible strand of multiple floating drums.
Preferably, muscle tendon main body is connected with offshore platform main body by marine connection cord, and muscle tendon main body is passed through connection cord and water under waterLower basis connects, and marine connection cord is provided with the first shackle away from one end of offshore platform main body, and connection cord is away from underwater foundation under waterOne end be provided with the second shackle, the two ends of flexible strand are provided with the collar, two collars are connected with the first shackle, the second shackle respectively.Further preferably, marine connection cord is connected by connector with offshore platform main body. Further preferred, connector comprisesWith the fixing hold-down support of offshore platform main body, hold-down support is provided with the clamping device for clamping marine connection cord, marine companyThe upper end of splicing is also provided with the end governor motion for regulating marine connection cord length.
Such scheme is further preferred, between hold-down support and offshore platform main body, is provided with elastic compensating bearing.
Such scheme is further preferred, and clamping device comprises the multiple wedge lock pieces and the edge that circumferentially distribute along marine connection cordThe Wedge base that multiple wedge lock pieces circumferentially distribute, Wedge base and hold-down support, end governor motion are detachable fixingConnect, Wedge base is provided with multiple adjusting bolts that prop up wedge lock piece.
Such scheme is further preferred, and end governor motion comprises the threaded adjusting sleeve overlapping on connection cord at sea, screw threadThe upper end of regulating sleeve is provided with the locking member for fixing marine connection cord, and the outer cover of threaded adjusting sleeve has adjusting nut,Adjusting nut coordinates with threaded adjusting bush whorl, and adjusting nut is placed on and regulates on bearing, and regulating bearing and clamping device is canDismounting is fixedly connected with.
Preferably, marine connection cord, connection cord is steel wire rope or anchor chain under water.
Preferably, flexible strand is steel wire rope or anchor chain.
Preferably, floating drum comprises two semicircular cylinders that flexible strand are enclosed in to center, and the outside of two semicircular cylinders is along being circumferentially wound with and tying upBand.
For achieving the above object and other relevant objects, the present invention also provides a kind of mounting means of float-type tension force muscle tendon, muscle tendonFor tension leg platform (TLP), the two ends of muscle tendon are connected with offshore platform main body, the underwater foundation that is positioned at seabed respectively, and muscle tendon comprises muscleTendon main body, muscle tendon main body is one to be fixed with the flexible strand of multiple floating drums; Muscle tendon main body is by marine connection cord and offshore platform main bodyConnect, muscle tendon main body is passed through connection cord under water and is connected with underwater foundation, and marine connection cord is provided with away from one end of offshore platform main bodyThe first shackle, connection cord is provided with the second shackle away from one end of underwater foundation under water, and the two ends of flexible strand are provided with the collar, two coversRing is connected with the first shackle, the second shackle respectively, it is characterized in that, described mounting means comprises the following steps:
1) be provided with across the sea an operation ship, on operation ship, a wheel disc that is coiling whole piece flexible strand be installed;
2) wheel disc is discharged into flexible strand on boat deck, completes floating drum fixing in flexible strand on boat deck, will fix floatingThe muscle tendon main body of cylinder is put in water;
3) be also provided with across the sea a tractive ship, tractive ship is provided with winch, is fixed with pulling rope on winch, pulling rope and muscle tendonMain body connects away from one end of operation ship, discharges in the process of flexible strand at wheel disc, and tractive ship does not stop mobile by muscle tendon main body tractiveBecome wire;
4) complete after the floating drum steady job of whole piece muscle tendon main body, at the two ends of muscle tendon main body, the collar is installed respectively;
5) on the one end that is positioned at the muscle tendon main body on operation ship, fix weight, and weight is put into together with muscle tendon main bodyIn water;
6) underwater foundation is in place, now the second shackle of connection cord is under water connected with a buoyancy aid connection cord, buoyancy aid connection cordBe connected with sea buoyancy aid;
7) weight and muscle tendon main body are separated, connection cord separates with buoyancy aid connection cord under water, and will be positioned at muscle tendon main body lower endThe collar is connected with the second shackle of connection cord under water;
8) tension of the hydraulic wireline winch on tractive ship muscle tendon main body, makes muscle tendon main body in line;
9) tractive ship leaves former allocation, and offshore platform main body moves to precalculated position, marine connection cord is lengthened gradually, at waterLower the first shackle of marine connection cord is connected with the collar that is positioned at muscle tendon main body upper end;
10) remove pulling rope, regulate the length of marine connection cord, tighten up muscle tendon main body, until reach designing requirement.
Preferably, marine connection cord is connected by connector with offshore platform main body, in step 9) and 10) in, by connectingDevice regulates the length of marine connection cord.
As mentioned above, float-type tension force muscle tendon of the present invention and mounting means, have following beneficial effect:
Float-type tension force muscle tendon of the present invention and mounting means, utilize steel wire rope or anchor chain to bear tensioning load as the main body of muscle tendon,The gravity that floating drum provides buoyancy to offset steel wire rope or anchor chain, with respect to traditional steel pipe type tension force muscle tendon, float-type tension force muscleThe advantage of tendon maximum is without withstand voltage and connectivity problem, can reduce risk in use, reduces processing capacity, reduces and connectsConstruction volume, and a muscle tendon can, with one whole steel wire rope as main body, ensure the intensity of whole piece muscle tendon, avoided jointThe potential safety hazard of bringing, the parts of float-type tension force muscle tendon are as the easily buying such as steel wire rope, floating drum, binding strap, the collar, costLow, marine installation effectiveness is high, easy to implement, has major application to be worth, for China ocean for exploitation deep water tension leg platform (TLP)The development of engineering deepwater development oil gas cause has great significance.
Brief description of the drawings
Fig. 1 is shown as the structural representation that float-type tension force muscle tendon of the present invention is connected with offshore platform main body, underwater foundation.
Fig. 2 a is shown as the structural representation of a kind of detailed description of the invention of the muscle tendon main body of the float-type tension force muscle tendon shown in Fig. 1.
Fig. 2 b is shown as the generalized section of the muscle tendon main body of the float-type tension force muscle tendon shown in Fig. 2 a.
Fig. 2 c be shown as the float-type tension force muscle tendon shown in Fig. 2 b muscle tendon main body A-A to generalized section.
Fig. 3 a is shown as the structural representation of the another kind of detailed description of the invention of the muscle tendon main body of the float-type tension force muscle tendon shown in Fig. 1Figure.
Fig. 3 b is shown as the generalized section of the muscle tendon main body of the float-type tension force muscle tendon shown in Fig. 3 a.
Fig. 3 c be shown as the float-type tension force muscle tendon shown in Fig. 3 b muscle tendon main body B-B to generalized section.
Fig. 4 is shown as the connector of the float-type tension force muscle tendon shown in Fig. 1 and the combination schematic diagram of marine connection cord.
Fig. 5 a is shown as the wedge lock piece of connector of the float-type tension force muscle tendon shown in Fig. 4 and marine connection cord releasing orientationSchematic diagram.
Fig. 5 b is shown as wedge lock piece and the marine connection cord locking state of the connector of the float-type tension force muscle tendon shown in Fig. 5 aSchematic diagram.
Fig. 5 c is shown as the generalized section of the wedge lock piece of the connector of the float-type tension force muscle tendon shown in Fig. 5 b.
Fig. 6 a is shown as the structural representation of the Wedge base of the connector of the float-type tension force muscle tendon shown in Fig. 4.
Fig. 6 b is shown as the top view of the Wedge base of the connector of the float-type tension force muscle tendon shown in Fig. 6 a.
Fig. 7 a is shown as the mounting structure schematic diagram of the Wedge base of the connector of the float-type tension force muscle tendon shown in Fig. 4.
Fig. 7 b is shown as the mounting structure top view of the Wedge base of the connector of the float-type tension force muscle tendon shown in Fig. 7 a.
Fig. 8 a to Fig. 8 c is shown as the connector of the float-type tension force muscle tendon shown in Fig. 4 and the signal of marine connection cord number of assembling stepsFigure.
The marine connection cord that Fig. 9 a to Fig. 9 c is shown as the float-type tension force muscle tendon shown in Fig. 4 upwards regulates and locks showing of stepIntention.
The marine connection cord that Figure 10 a to Figure 10 e is shown as the float-type tension force muscle tendon shown in Fig. 4 regulates and locks step downwardsSchematic diagram.
Figure 11 a to Figure 11 h is shown as the step schematic diagram of the mounting means of the float-type tension force muscle tendon shown in Fig. 1.
Element numbers explanation
1 offshore platform main body
2 underwater foundations
3 muscle tendon main bodys
31 flexible strand
32 floating drums
321 semicircular cylinders
322 binding straps
323 projections
33 collars
4 marine connection cords
41 first shackles
5 connection cords under water
6 connectors
61 hold-down supports
62 elastic compensating bearings
63 clamping devices
631 wedge lock pieces
632 Wedge bases
633 adjusting bolts
64 end governor motions
641 threaded adjusting sleeves
642 locking members
643 adjusting nuts
644 regulate bearing
7 operation ships
71 wheel discs
8 tractive ships
81 winches
82 pulling ropes
9 weights
10 sea buoyancy aids
11 buoyancy aid connection cords
12 underwater robots
Detailed description of the invention
By particular specific embodiment explanation embodiments of the present invention, person skilled in the art scholar can be taken off by this description belowThe content of revealing is understood other advantages of the present invention and effect easily.
Refer to Fig. 1 to Figure 11 h. Notice, appended graphic the illustrated structure of this description, ratio, size etc., all only useTo coordinate the content that description was disclosed, understand and read for person skilled in the art scholar, not can be real in order to limit the present inventionThe qualifications of executing, thus the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size,Not affecting under effect that the present invention can produce and the object that can reach, all should still drop on disclosed technology contentsObtain in the scope that can contain. Meanwhile, in this description, quote as " on ", D score, " left side ", " right side ", " centre " and " one " etc.Term, also only for ease of the understanding of narration, but not in order to limit the enforceable scope of the present invention, the change of its relativeness orAdjust, changing under technology contents, when being also considered as the enforceable category of the present invention without essence.
As shown in Figure 1, the invention provides a kind of float-type tension force muscle tendon, muscle tendon is for tension leg platform (TLP), and the two ends of muscle tendon respectivelyBe connected with offshore platform main body 1, the underwater foundation 2 that is positioned at seabed, muscle tendon comprises muscle tendon main body 3, and muscle tendon main body 3 is one fixingThere is the flexible strand 31 of multiple floating drums 32; Muscle tendon main body 3 is connected with offshore platform main body 1 by marine connection cord 4, muscle tendon masterBody 3 is connected with underwater foundation 2 by connection cord 5 under water, and marine connection cord 4 is provided with away from one end of offshore platform main body 1One shackle 41, connection cord 5 is provided with the second shackle away from one end of underwater foundation 2 under water, and the two ends of flexible strand 31 are provided with the collar33, two collars 33 are connected with the first shackle 41, the second shackle respectively. Wherein, marine connection cord 4, connection cord 5 can under waterFor steel wire rope or anchor chain.
As shown in Fig. 2 a to Fig. 2 c, flexible strand 31 can be anchor chain. Wherein, floating drum 32 comprises anchor chain is enclosed in to two of centerThe outside of 321, two semicircular cylinders 321 of individual semicircular cylinder is along being circumferentially wound with binding strap 322. Two semicircular cylinders 321 are with respect to anchor chainInner surface also can be provided with projection 323, and this projection 323 is inserted the hollow position in the middle of anchor chain, plays the effect of location. Wherein,Floating drum 32 can be Plastic buoy, and binding strap 322 can be stainless steel binding strap.
As shown in Fig. 3 a to Fig. 3 c, flexible strand 31 can be steel wire rope. Wherein, floating drum 32 comprises anchor chain is enclosed in to centerThe outside of 321, two semicircular cylinders 321 of two semicircular cylinders is along being circumferentially wound with binding strap 322. Wherein, it is floating that floating drum 32 can be plasticsCylinder, binding strap 322 can be stainless steel binding strap.
Marine connection cord 4 can be connected by connector 6 with offshore platform main body 1. As shown in Figure 4, connector 6 comprises and seaThe hold-down support 61 that upper mounting plate main body 1 is fixing, hold-down support 61 is provided with the clamping device 63 for clamping marine connection cord 4,The upper end of marine connection cord 4 is also provided with the end governor motion 64 for regulating marine connection cord 4 length.
Between hold-down support 61 and offshore platform main body 1, be provided with elastic compensating bearing 62.
Clamping device 63 comprises along the circumferential multiple wedge lock pieces 631 that distribute of marine connection cord 4 with along multiple wedge lock pieces631 Wedge bases 632 that circumferentially distribute, Wedge base 632 is detachable solid with hold-down support 61, end governor motion 64Fixed connection, Wedge base 632 is provided with multiple adjusting bolts 633 that prop up wedge lock piece 631.
End governor motion 64 comprises the threaded adjusting sleeve 641 overlapping on connection cord 4 at sea, threaded adjusting sleeve 641 upperEnd is provided with the locking member 642 for fixing marine connection cord 4, and the outer cover of threaded adjusting sleeve 641 has adjusting nut 643,Adjusting nut 643 and threaded adjusting sleeve 641 threaded engagement, adjusting nut 643 is placed on and regulates on bearing 644, regulates and props upSeat 644 with clamping device 63 for being detachably fixedly connected with.
As shown in Figure 5 a, multiple wedge lock pieces 631 circumferentially distribute along marine connection cord 4, when wedge lock piece 631 is not subject toDuring to the pressure of marine connection cord 4, wedge lock piece 631 and marine connection cord 4 are releasing orientation, and marine connection cord 4 can beIn the space that multiple wedge lock pieces 631 surround, freely move up and down. As shown in Figure 5 b, when wedge lock piece 631 is subject to seaWhen the pressure of upper connection cord 4, between wedge lock piece 631 and marine connection cord 4, produce frictional force, thereby by marine connection cord4 lockings. As shown in Figure 5 c, wedge lock piece 631 is provided with screw thread with respect to the surface of marine connection cord 4, and this screw thread can increaseFrictional force between wedge lock piece 631 and marine connection cord 4.
Fig. 6 a and 6b are depicted as the structural representation of Wedge base 632, and this Wedge base 632 is provided with and wedge lock piece 631The wedge shape space that adapts of external shape. As shown in Fig. 7 a to Fig. 7 b, Wedge base 632 with regulate bearing 644 by canDemounting bolt connects, and Wedge base 632 is also connected by hinged bolt with hold-down support 61.
As shown in Fig. 8 a to 8c, the assembling of marine connection cord 4 and connector 6, comprises the following steps:
1) elastic compensating bearing 62, hold-down support 61 are at sea assembled in main platform body 1, then Wedge base 632 is putPut on hold-down support 61, then marine connection cord 4 passed to elastic compensating bearing 62, hold-down support 61 and Wedge base 632,As shown in Figure 8 a;
2) circumferential array along marine connection cord 4 by multiple wedge lock pieces 631, and be placed on the wedge shape sky of Wedge base 632In, under the effect of wedge lock piece 631 self gravitations, Wedge base 632 produces pressure to wedge lock piece 631, makesBetween wedge lock piece 631 and marine connection cord 4, produce frictional force, play the effect of the marine connection cord 4 of locking, as Fig. 8 b instituteShow;
3) upper end of marine connection cord 4 is connected with end governor motion 64, is inserted in threaded adjusting cover by marine connection cord 4In cylinder 641, and the upper end of marine connection cord 4 is connected with locking member 642, then by Wedge base 632 and hold-down support61, Wedge base 632 is fixedly connected with by hinged bolt with regulating bearing 644, as shown in Figure 8 c.
As shown in Fig. 9 a to Fig. 9 c, marine connection cord 4 upwards regulates and locks, and comprises the following steps:
1) rotation adjusting nut 643, makes threaded adjusting sleeve 641 drive marine connection cord 4 to move up, as shown in Fig. 9 a;
2) owing to having frictional force between marine connection cord 4 and wedge lock piece 631, when marine connection cord 4 moves up, bandMoving wedge lock piece 631 moves up, as shown in Fig. 9 b;
3) in the time that wedge lock piece 631 separates with Wedge base 632, because wedge lock piece 631 is no longer subject to Wedge base632 pressure, the frictional force between wedge lock piece 631 and marine connection cord 4 weakens even disappearance, wedge lock piece 631Under self gravitation effect, again fall in the wedge shape space of Wedge base 632, again lock marine connection cord 4; When sea connectsWhen splicing 4 stops moving up, wedge lock piece 631 keeps the state of the marine connection cord 4 of locking, as shown in Fig. 9 c.
As shown in Figure 10 a to Figure 10 e, marine connection cord 4 regulates and locks downwards, comprises the following steps:
1) remove the fixed screw on all Wedge bases 632, make Wedge base 632 can along wedge lock piece 631 radially toOuter activity, as shown in Figure 10 a;
2) rotation adjusting bolt 633, makes adjusting bolt 633 tops to wedge lock piece 631, under the effect of adjusting bolt 633,Wedge base 632 is separated, as shown in Figure 10 b with wedge lock piece 631;
3) because marine connection cord 4 is subject to downward pulling force, make marine connection cord 4 drive wedge lock piece 631 to move down,Until wedge lock piece 631 arrives to hold-down support 61, as shown in Figure 10 c;
4) unclamp adjusting bolt 633, make adjusting bolt 633 away from wedge lock piece 631, wedge lock piece 631 is no longer subject toPressure, thus make the frictional force between wedge lock piece 631 and marine connection cord 4 weaken even disappearance, now, sea is connectedSplicing 4 is moved downward to correct position, as shown in Figure 10 d;
5) after marine connection cord 4 is adjusted to the right place, locking member 642 is locked marine connection cord 4, then by Wedge base 632Be readjusted to the state inconsistent with wedge lock piece 631, wedge lock piece 631 is subject to again from Wedge base 632Pressure, reach the object of the marine connection cord 4 of locking, finally also need Wedge base 632 with hold-down support 61, regulate bearing644 is relatively fixing, as shown in Figure 10 e.
Adopt above-mentioned connector 6, can complete easily being connected between marine connection cord 4 and offshore platform main body 1, and can be withIn time, is adjusted marine connection cord 4 and stretches into length in the sea, thereby reaches fast and easy and regulate the object of the duty of muscle tendon main body 3.
Float-type tension force muscle tendon is with respect to traditional steel pipe type tension force muscle tendon, and maximum advantage is without withstand voltage and connectivity problem,Reduce risk in use, reduce processing capacity, reduce connection construction amount, and muscle tendon can be with one whole steel wireRope, has ensured the intensity of whole piece muscle tendon, the potential safety hazard of having avoided joint to bring, the parts of float-type tension force muscle tendon as steel wire rope,Floating drum, binding strap, the collar etc. are buying easily, and cost is low, and marine installation effectiveness is high, easy to implement, for exploitation deep water tension forceLeg platform has major application to be worth, and has great significance for the development of China's ocean engineering deepwater development oil gas cause.
As shown in Figure 11 a to Figure 11 h, the mounting means of above-mentioned float-type tension force muscle tendon, comprises the following steps:
1) be provided with across the sea an operation ship 7, on operation ship 7, a wheel disc 71 that is coiling whole piece flexible strand 31 be installed;
2) wheel disc 71 is discharged into flexible strand 31 on boat deck, completes floating drum 32 fixing in flexible strand 31 on boat deck,The muscle tendon main body 3 that fixes floating drum 32 is put in water;
3) be also provided with across the sea a tractive ship 8, tractive ship 8 is provided with winch 81, is fixed with pulling rope 82 on winch 81,Pulling rope 82 is connected away from one end of operation ship 7 with muscle tendon main body 3, discharges in the process of flexible strand 31 tractive at wheel disc 71Ship 8 does not stop movement muscle tendon main body 3 is pulled into wire;
4) complete after floating drum 32 steady jobs of whole piece muscle tendon main body 3, at the two ends of muscle tendon main body 3, the collar 33 be installed respectively,Step 1) to 4) as shown in Figure 11 a;
5) on the one end that is positioned at the muscle tendon main body 3 of operation on ship 7, fix weight 9, and by weight 9 together with muscle tendon main body3 put into water together, as shown in Figure 11 b to Figure 11 c;
6) underwater foundation 2 is in place, now the second shackle of connection cord 5 is under water connected with a buoyancy aid connection cord 11, floatingBody connection cord 11 is connected with sea buoyancy aid 10, as shown in Figure 11 d;
7) weight 9 and muscle tendon main body 3 are separated, connection cord 5 separates with buoyancy aid connection cord 11 under water, and will be positioned at muscle tendonThe collar 33 of main body 3 lower ends is connected with the second shackle of connection cord 5 under water, as shown in Figure 11 e;
8) winch 81 on tractive ship 8 is strained muscle tendon main body 3, makes muscle tendon main body 3 in line, as shown in Figure 11 f;
9) tractive ship 8 leaves former allocation, and offshore platform main body 1 moves to precalculated position, marine connection cord 4 is lengthened gradually,Under water the first shackle 41 of marine connection cord 4 is connected with the collar 33 that is positioned at muscle tendon main body 3 upper ends, as shown in Figure 11 g;
10) remove pulling rope 82, regulate the length of marine connection cord 4, tighten up muscle tendon main body 3, until reach designing requirement,As shown in Figure 11 h.
Wherein, in step 9) and 10) in, the length of marine connection cord 4 can be regulated by connector 6.
Wherein, wheel disc 71, winch 81 can pass through fluid motor-driven.
Wherein, in step 7), can weight 9 and muscle tendon main body 3 be separated by underwater robot 12 to connection cord under water5 separate with buoyancy aid connection cord 11, and unload and link with second of connection cord 5 being under water positioned at the collar 33 of muscle tendon main body 3 lower endsConnect.
Wherein, in step 9), can by diver under water by the first shackle 41 of marine connection cord 4 be positioned at muscle tendon main bodyThe collar 33 of 3 upper ends connects.
In sum, float-type tension force muscle tendon of the present invention and mounting means, utilize steel wire rope or anchor chain to bear as the main body of muscle tendonTensioning load, the gravity that floating drum provides buoyancy to offset steel wire rope or anchor chain, with respect to traditional steel pipe type tension force muscle tendon, floatingThe advantage of minor tension force muscle tendon maximum is without withstand voltage and connectivity problem, can reduce risk in use, reduces processing capacity,Reduce connection construction amount, and a muscle tendon can, with one whole steel wire rope as main body, ensure the intensity of whole piece muscle tendon, keep awayExempted from the potential safety hazard that joint brings, the parts of float-type tension force muscle tendon are easily adopted as steel wire rope, floating drum, binding strap, the collar etc.Purchase, cost is low, and marine installation effectiveness is high, easy to implement, has major application to be worth for exploitation deep water tension leg platform (TLP), forThe development of China's ocean engineering deepwater development oil gas cause has great significance.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention. Anyly be familiar with this skillThe personage of art all can, under spirit of the present invention and category, modify or change above-described embodiment. Therefore, such asUnder have in technical field conventionally know the knowledgeable do not depart under disclosed spirit and technological thought, complete all etc.Effect is modified or is changed, and must be contained by claim of the present invention.
Claims (9)
1. a float-type tension force muscle tendon, described muscle tendon is for tension leg platform (TLP), the two ends of described muscle tendon respectively with offshore platform main body,The underwater foundation that is positioned at seabed connects, and it is characterized in that: described muscle tendon comprises muscle tendon main body, and described muscle tendon main body is one fixingThere is the flexible strand of multiple floating drums;
Described muscle tendon main body is connected with offshore platform main body by marine connection cord, and described muscle tendon main body is passed through connection cord and water under waterLower basis connects, and described marine connection cord is provided with the first shackle away from one end of offshore platform main body, described connection cord under waterBe provided with the second shackle away from one end of underwater foundation, the two ends of described flexible strand are provided with the collar, described two collars respectively withDescribed the first shackle, the second shackle connect;
Described marine connection cord is connected by connector with offshore platform main body; Described connector comprises and described offshore platform main bodyFixing hold-down support, described hold-down support is provided with the clamping device for clamping marine connection cord, described marine connectionThe upper end of rope is also provided with the end governor motion for regulating marine connection cord length.
2. float-type tension force muscle tendon according to claim 1, is characterized in that: described hold-down support and described offshore platform main bodyBetween be provided with elastic compensating bearing.
3. float-type tension force muscle tendon according to claim 1, is characterized in that: described clamping device comprised along described marine connectionMultiple wedge lock pieces that rope circumferentially distributes and the Wedge base circumferentially distributing along described multiple wedge lock pieces, described wedge shape baseSeat is detachably and is fixedly connected with described hold-down support, end governor motion, and described Wedge base is provided with multiple propping upThe adjusting bolt of described wedge lock piece.
4. float-type tension force muscle tendon according to claim 1, is characterized in that: described end governor motion comprises and is enclosed within described seaThreaded adjusting sleeve on upper connection cord, the upper end of described threaded adjusting sleeve is provided with the lock for fixing described marine connection cordTight parts, the outer cover of described threaded adjusting sleeve has adjusting nut, described adjusting nut and described threaded adjusting bush whorlCoordinate, described adjusting nut is placed on and regulates on bearing, described adjusting bearing with described clamping device for being detachably fixedly connected with.
5. float-type tension force muscle tendon according to claim 1, is characterized in that: described marine connection cord, connection cord is steel under waterSilk rope or anchor chain.
6. according to the float-type tension force muscle tendon described in claim 1 to 5 any one, it is characterized in that: described flexible strand be steel wire rope orAnchor chain.
7. according to the float-type tension force muscle tendon described in claim 1 to 5 any one, it is characterized in that: described floating drum comprises described softProperty rope be enclosed in two semicircular cylinders at center, the outside of described two semicircular cylinders is along being circumferentially wound with binding strap.
8. a mounting means for float-type tension force muscle tendon, described muscle tendon is for tension leg platform (TLP), the two ends of described muscle tendon respectively with seaMain platform body, the underwater foundation that is positioned at seabed connect, and described muscle tendon comprises muscle tendon main body, and described muscle tendon main body is one to be fixed withThe flexible strand of multiple floating drums; Described muscle tendon main body is connected with offshore platform main body by marine connection cord, and described muscle tendon main body is logicalCross connection cord under water and be connected with underwater foundation, described marine connection cord is provided with the first shackle away from one end of offshore platform main body,Described connection cord is under water provided with the second shackle away from one end of underwater foundation, and the two ends of described flexible strand are provided with the collar, and described twoThe individual collar is connected with described the first shackle, the second shackle respectively, it is characterized in that, described mounting means comprises the following steps:
1) be provided with across the sea an operation ship, a wheel disc that is coiling whole piece flexible strand is installed on described operation ship;
2) described wheel disc is discharged into flexible strand on boat deck, completes floating drum fixing in flexible strand on boat deck, will fixThe muscle tendon main body of good floating drum is put in water;
3) be also provided with across the sea a tractive ship, described tractive ship is provided with winch, on described winch, is fixed with pulling rope, described inPulling rope is connected away from one end of operation ship with muscle tendon main body, discharges in the process of flexible strand at wheel disc, and tractive ship does not stopMove muscle tendon main body is pulled into wire;
4) complete after the floating drum steady job of whole piece muscle tendon main body, at the two ends of muscle tendon main body, the collar is installed respectively;
5) on the one end that is positioned at the muscle tendon main body on operation ship, fix weight, and weight is put into together with muscle tendon main bodyIn water;
6) described underwater foundation is in place, now described in the second shackle of connection cord be under water connected with a buoyancy aid connection cord, instituteStating buoyancy aid connection cord is connected with sea buoyancy aid;
7) weight and muscle tendon main body are separated, connection cord separates with buoyancy aid connection cord under water, and will be positioned at muscle tendon main body lower endThe collar is connected with the second shackle of described connection cord under water;
8) tension of the hydraulic wireline winch on described tractive ship muscle tendon main body, makes muscle tendon main body in line;
9) described tractive ship leaves former allocation, and described offshore platform main body moves to precalculated position, and marine connection cord is put graduallyLong, under water the first shackle of marine connection cord is connected with the collar that is positioned at muscle tendon main body upper end;
10) remove described pulling rope, regulate the length of marine connection cord, tighten up muscle tendon main body, until reach designing requirement.
9. the mounting means of float-type tension force muscle tendon according to claim 8, is characterized in that: described marine connection cord is with marineMain platform body connects by connector, in step 9) and 10) in, the length of marine connection cord regulated by connector.
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| CN105752285B (en) * | 2016-02-03 | 2017-08-22 | 大连理工大学 | A kind of rigid steel pipes tension tendon alignment system for many floating drums of connecting |
| CN109720514B (en) * | 2019-02-25 | 2024-03-12 | 中交第三航务工程局有限公司 | Tendon for tension leg floating type wind power platform |
| CN110254650B (en) * | 2019-05-28 | 2020-07-17 | 浙江海洋大学 | Cable capable of adjusting flexibility on ocean platform |
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| CN1810574A (en) * | 2006-02-27 | 2006-08-02 | 天津大学 | Deep water mooring system combining float and weight block |
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