CN202557747U - Dismounting ship for jacket - Google Patents
Dismounting ship for jacket Download PDFInfo
- Publication number
- CN202557747U CN202557747U CN2012201578725U CN201220157872U CN202557747U CN 202557747 U CN202557747 U CN 202557747U CN 2012201578725 U CN2012201578725 U CN 2012201578725U CN 201220157872 U CN201220157872 U CN 201220157872U CN 202557747 U CN202557747 U CN 202557747U
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- ship
- jacket
- turnover panel
- deck
- dismounting
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Abstract
The utility model discloses a dismounting ship for a jacket. The dismounting ship comprises a ship body, a turning board, a winch, a fixed pulley and a steel wire rope, wherein the back surface of the turning board is hinged to a junction between a ship body deck and a ship body end surface through a rolling shaft, the turning board can turn between the ship body deck and the ship body end surface around the rolling shaft, a turning angle of the turning board is an obtuse angle; and the winch is fixedly installed on the ship body deck, the fixed pulley is installed at the upper end of the turning board, the steel wire rope is installed in the fixed pulley in a penetrating mode, one end of the steel wire rope is connected to the winch, and the other end of the steel wire rope is provided with a lifting hook. According to the dismounting ship for the jacket, the turning board and a steel wire rope traction system are arranged on the dismounting ship, the turning board is not only a lifting arm for lifting the jacket, but also a slide way for the ship on the jacket, and by means of the matching between the turning board and the steel wire rope traction system, the jacket can be simply and effectively lifted, drawn and shipped, so that construction costs for dismounting the jacket are reduced, the dismounting ship is convenient for dismounting the jacket on the sea with stormy waves, and the dismounting ship is good in adaptability to different water depth.
Description
Technical field
The utility model relates to a kind of detaching device of marine jacket.
Background technology
Jacket platform is as a kind of shallow water fixed type marine oil and gas development platform, in the marine oil and gas exploitation, plays an important role, and it is made up of jacket that is fixed on the seabed and the platform that is fixed on the jacket upper end and is higher than the sea level.According to statistics, the jacket quantity that China is on active service at present has tens, wherein have a large amount of platform Years Of Services near or surpass design life, maximum with the old platform quantity in marine site, the Bohai Sea.The design life of general marine jacket platform is about 20 years; According to the regulation of Marine Environmental Protection Law with laws and regulations such as " offshore platform are thrown aside and managed tentative method "; The jacket platform operation life-span if there is not other purposes, must be discarded dismounting to after date.
The dismounting work of jacket platform also is the marine operation of a complicacy, must have the engineer operation ship of specialty to accomplish.Existing in the world jacket is removed ship and is had by external operation company always, and domestic still do not have relevant ship and a work unit.Remove demand in the face of the jacket that Chinese future is growing, domestic shipbuilding circles and ocean engineering circle are necessary to join together, and form to make a concerted effort, and independent development is built jacket and removed ship, participate in jacket and remove in the industrial chain.Relevant competent authorities also should promote and the exploitation at jacket dismounting ship of supporting domestic enterprise in the process of this industry of development, to promote the domestic core equipment that jacket is removed industry that possesses as early as possible.
It is more that at present jacket is removed the ship type of ship, and common have single hull, catamaran, a semisubmersible ship type etc., and there are loop wheel machine formula, truss-like etc. in lifting (lifting) system.The duty cycle of jacket dismounting auxiliary vessel is long, and rate is high, and it is different that present jacket removal cost depends on platform size and dismounting to require, and to more than one hundred million dollars, the expense that wherein accounts for maximum ratio is the rent that jacket is removed ship to its removal cost millions of.
A kind of detaching device and method for dismounting of marine jacket platform are disclosed such as U.S. Pat 5097786; It mainly comprises three parts: a working mother boat, a platform promote barge and one and half latent barges; When working mother boat and platform lifting barge combination use, can be used to remove the platform of jacket top; And when working mother boat and half is dived barge combination use, can be used to remove jacket.Connect a strong backboard on the half latent barge, the lower end of backboard is provided with a pedestal, and the upper end and the working mother boat of backboard are hinged, and the bottom surface of backboard and half latent barge are connected, and the end face of backboard is fixed a plurality of grapple assemblies; One end of half latent barge also is hinged with working mother boat, is provided with the ballast tank of a plurality of mutual isolation in the half latent barge, and each ballast tank can be by working mother boat control carrying out individually ballast or emptying operation.When removing jacket, make working mother boat and half dive barge earlier near jacket; Then, carry out ballast to each ballast tank with preset speed, make the half barge submerged that slowly descends of diving, drop on the sea bed up to said pedestal, the barge of diving this moment half roughly is vertical state; Grapple assembly on the backboard reliably is connected with jacket; Drag half latent barge with working mother boat along the direction away from jacket, the spud leg below jacket is extracted from sea bed; At last,, make semi-submerged ship, recover horizontality, accomplish the dismounting of jacket together with the floating water surface of going up of jacket that is fixed on the backboard end face with different each ballast tanks of speed emptying.
Though this US Pat is when removing jacket, its working mother boat can not bear vertical load basically, helps it and keeps center of gravity, operates safer.But its shortcoming also is apparent in view; Because when removing jacket; Half dive barge and on backboard be that facade with vertical state and jacket fits basically, have following problem so at least: it be very difficult one, will accomplishing this operation of accurately fitting at the sea that stormy waves is arranged; Two, since the length of backboard should with the height of jacket is consistent basically could normal operation, like this, the backboard of regular length just is difficult to the dismounting work of jacket in the different depth of waters of adaptation; Three, structure more complicated, construction and the use cost of half latent barge and ballast control system thereof are high.
The utility model content
The technical matters that the utility model will solve is to provide a kind of jacket simple and reliable, that comformability good, operating characteristic is strong to remove ship, to overcome the above-mentioned defective of prior art.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of jacket is removed ship, and comprise with lower component: hull has a deck in ship structure and a hull end face; Turnover panel comprises a upper end, a lower end, a positive and back side, and the said turnover panel back side is articulated in the intersection of deck in ship structure and hull end face through a roller bearing, and turnover panel can overturn between deck in ship structure and hull end face around roller bearing, and the flip angle of turnover panel is the obtuse angle; Winch is fixedly mounted on the said deck in ship structure; Fixed pulley is installed in the upper end of said turnover panel; Steel rope is located on the said fixed pulley, and an end of steel rope is connected on the said winch, and the other end of steel rope is provided with suspension hook.
Preferably, when said turnover panel turn to hull end face almost parallel, the turnover panel lower end extended to below the water surface.
Preferably, can stretch in the lower end of said turnover panel.
Preferably, also be fixed with leading sheave on the said deck in ship structure, said steel rope passes from the leading sheave below.
Preferably, also be provided with ground way on the said deck in ship structure, when said turnover panel was turned on the deck in ship structure, docked with said ground way the upper end of turnover panel.
Preferably, between said turnover panel and hull, also be provided with the lockable mechanism that is used to stop the turnover panel rotation.
Preferably, on the said turnover panel back side or deck in ship structure, also be provided with damping, buffering mechanism, on deck in ship structure, be provided with the clamping mechanism that is used to prevent the turnover panel bounce-back.
Preferably, the front of said turnover panel is provided with the jacket handling guiding mechanism.
Further, said turnover panel is made up of two rocking arms and a plurality of hydraulic rams of being connected between two rocking arms, and said two rocking arms are rotatably connected on the said roller bearing and can laterally slide along said roller bearing.
Further, said jacket handling guiding mechanism constitutes by being installed in two roller mount on the rocking arm relatively.
The utility model is owing to be provided with turnover panel and rope traction system on jacket dismounting ship; Turnover panel is the arm of lifting jacket; It is again the slideway that jacket is gone on board; Under the cooperation of turnover panel and rope traction system, can accomplish the lifting of jacket, dilatory, shipment process simply, effectively, reduced the construction cost that jacket is removed; Because the utility model is removed in the shipment process at jacket, all constructs under water with in the boats and ships altitude range, has reduced the risk of offshore construction; Because the utility model is before removing jacket; Turnover panel and jacket are accurately fitted; As long as steel rope reliably is connected with jacket, this is more convenient for operating at the sea that stormy waves is arranged, in hoisting process; Along with the variation of turnover panel and jacket angle, they can fit together naturally; In addition, according to the principle of work of the utility model, as long as turnover panel has enough guiding length, need not to be inserted into the seabed and contact with sea bed, therefore, the utility model is to the jacket better adaptability in the different depth of waters.
Description of drawings
Fig. 1 removes the structural representation of ship for the utility model jacket.
Fig. 2 removes the partial top view of ship when turnover panel is positioned on the deck in ship structure for the utility model jacket.
Fig. 3 is the scheme drawing of lockable mechanism in the utility model.
Fig. 4 is the scheme drawing of clamping mechanism in the utility model.
Fig. 5 is the scheme drawing of jacket handling guiding mechanism in the utility model.
Fig. 6-Figure 10 utilizes the utility model to remove the step scheme drawing of jacket.
Figure 11 is for removing the scheme drawing that the jacket end blocking resets.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further explain.
As shown in Figure 1, a kind of jacket of the utility model is removed ship and is comprised a hull 1, has a deck in ship structure 11 and a bevelled hull end face 12 on the hull 1.At the deck in ship structure 11 and the intersection of hull end face 12 roller bearing 7 of a horizontal direction is installed.Turnover panel 2 comprises a upper end 21,22, one positive 23 and one back side 24, a lower end; The turnover panel back side 24 is hinged on the roller bearing 7 rotationally; Because the articulated position of turnover panel 2 and roller bearing 7 is more near its upper end 21; Therefore under initial condition, turnover panel 2 can be turned to (state that just is almost parallel with hull end face 12) on the hull end face 12 under the effect of its deadweight naturally; But under external force, turnover panel 2 can overturn between deck in ship structure 11 and hull end face 12 around roller bearing 7, and the flip angle α (see figure 6) of turnover panel is the obtuse angle.21 places, upper end at turnover panel are equipped with fixed pulley 33; Steel rope 3 is located on the fixed pulley 33; The lower end of steel rope 3 is provided with suspension hook 31, and suspension hook should be made broad understanding here, and it is not limited to a hook-like part; Also can be an annular element, or other any can be with the lower end and the reliable bonded assembly means of hanging object of steel rope 3; The other end of steel rope 3 is connected on the winch 34, and winch 34 is fixedly mounted on the said deck in ship structure 11.
As the preferred implementation of the utility model, preferably also be fixed with leading sheave 32 on the deck in ship structure 11, said steel rope 3 passes from leading sheave 32 belows, is used for steel rope 3 is led.In addition, ground way 4, clamping mechanism 5 and damping, buffering mechanism 6 can also be set on the deck in ship structure 11, the effect of ground way 4, clamping mechanism 5 and damping, buffering mechanism 6 will further be introduced hereinafter.
As shown in Figure 2; A kind of preferred structure of turnover panel is made up of two rocking arms 25 and a plurality of hydraulic rams 27 of being connected between two rocking arms 25; Wherein two rocking arms 25 are rotatably connected on the said roller bearing 7 and also can laterally slide along roller bearing 7, and other has a pillar 26, and the both sides of pillar 26 respectively are provided with at least two hydraulic rams 27; One end of hydraulic ram 27 is captiveed joint with pillar 26, and the other end is captiveed joint with rocking arm 25.When hydraulic ram 27 stretches, can drive two rocking arms 25 and laterally slide, thereby regulate two distances between the rocking arm 25 along roller bearing 7, just regulate the width of turnover panel 2.On the front of turnover panel, two rocking arms 25, also be provided with jacket handling guiding mechanism 8, between turnover panel and hull, also be provided with the lockable mechanism 9 that is used to stop the turnover panel rotation.
As shown in Figure 5; Wherein a kind of preferred structure of jacket handling guiding mechanism 8 is to constitute by being installed in two roller mount 81,82 on the rocking arm; Two roller mount 81,82 are oppositely arranged, and wherein are provided with many group rollers, constitute a guide chute jointly; Can supply jacket 10 to slide therein, and prevent that jacket 10 from squinting to both sides in sliding process.
As shown in Figure 3; A kind of preferred structure of lockable mechanism 9 is provided with near roller bearing 7 and does not keep off 92; Do not keep off 92 and be fixed on the turnover panel 2, detouchable is set on roller bearing 7 does not in addition sell 91, be not inserted in 7 last times of roller bearing when selling 91; Since do not sell 91 with do not keep off 92 and produce to interfere, thereby stop turnover panel 2 to clockwise rotate with respect to hull 1.
Utilize the utility model to carry out the detailed process that jacket is removed below in conjunction with Fig. 6-Figure 10 explanation.
As shown in Figure 6, remove ship 200 near being positioned at marine jacket 10, as previously mentioned with a jacket earlier; Jacket is removed on the ship 200 and is comprised a deck in ship structure and a hull end face; Also comprise the turnover panel 2 that can between deck in ship structure and hull end face, overturn, fixed pulley is installed, winch 34 is installed on deck in ship structure in the upper end of turnover panel; One end of steel rope 3 is wound on the said winch 34, and the other end of steel rope 3 is walked around said fixed pulley and is provided with suspension hook.
Under initial condition, turnover panel and hull end face roughly are parastate, and the turnover panel lower end extends to below the water surface.A kind of preferred construction is can stretch in the lower end of turnover panel, adopts box girder structure such as its two rocking arms, can be driven by hydraulic actuating cylinder and realize the flexible of length.Under the state of not operation, turnover panel can shorten length as far as possible, has avoided the influence of marine stormy waves to stability of ship; Before removing operation, turnover panel can extend downwards, to increase the guiding bearing length.
As shown in Figure 6, the attitude of adjustment hull lets turnover panel face jacket 10, and as far as possible near, but need not accurate applying.To be fixed on the jacket 10 from the steel wire rope hook that turnover panel upper end fixed pulley hangs down; Rotate winch tense wire rope 3 then, but need not apply too big pulling force.
The tension that keeps steel rope, the spud leg that under water jacket 10 lower ends is inserted in the sea bed 100 cuts off, and makes jacket 10 break away from sea bed 100.If be provided with lockable mechanism 9 between turnover panel and the hull, preferably earlier locked turnover panel 2 before cutting with lockable mechanism, prevent that turnover panel from producing thrust to jacket 10, causes danger in cutting process.
After the lower end of jacket cuts off fully, remove the lockup state of turnover panel, with winch Wound steel rope 3; With jacket 10 pull-ups, at this moment, as shown in Figure 6; Winch 34 applies tensile force f 1 through steel rope to the turnover panel upper end, and jacket 10 applies tensile force f 2, F3 through steel rope to the turnover panel upper end, under the force action of tensile force f 1, F2 and F3; Turnover panel 2 cw upset lentamente; Make the side of jacket 10 and the front of turnover panel 2 fit and slide to the upper end of turnover panel along turnover panel, turnover panel 2 diminishes with the angle of deck in ship structure gradually, shown in Fig. 7-9.
In hoisting process; Because the weight of jacket is very big; Friction force between jacket and the turnover panel also can increase gradually, and in the turnover panel rotation process, jacket can break away unavoidably; Jacket handling guiding mechanism shown in Figure 5 utilizes roller to reduce friction, and plays simultaneously and sets upright directional tagging.In addition; Because jacket generally all is up-small and down-big trapezium structure; And the jacket handling guiding mechanism is fixed on the turnover panel, and in order to adapt to the wide variety of jacket in lifting process, turnover panel structure shown in Figure 2 can realize the adjusting of width; The width of jacket handling guiding mechanism can be changed with the lifting of jacket, keep the directional tagging of setting upright jacket.
Shown in figure 10, when the center of gravity of the fabricate block that is constituted when jacket 10 and turnover panel 2 was crossed the center of turn of turnover panel 2, turnover panel 2 is upset fast, translates on the deck in ship structure 11 together with jacket 10.Impact when contacting with deck in ship structure 11 in order to alleviate turnover panel is preferably in damping, buffering mechanism 6 (see figure 1)s is set on the deck in ship structure, and damping, buffering mechanism 6 also can be arranged on the turnover panel back side certainly; Simultaneously, contact bounce-back once more with deck in ship structure, on deck in ship structure, be provided with clamping mechanism 5 (see figure 1)s that are used to prevent the turnover panel bounce-back for fear of turnover panel.A kind of structure of clamping mechanism 5 is as shown in Figure 4; It comprises a draw-in groove 51 that is fixed on the deck in ship structure, at the back side of turnover panel grab 28 is set, when turnover panel contacts with deck in ship structure; Grab 28 just in time embeds in the draw-in groove 51 and can not withdraw from automatically, thereby turnover panel is fixed on the deck in ship structure.Certainly, grab 28 can draw under the effect of external force and from draw-in groove 51, deviate from, and realizes release.
Continuation has so far been accomplished the dismounting and the shipment process of jacket 10 with reference to Figure 10, can remove ship or other ship is transported jacket 10 on the bank back by jacket thereafter.
Further; Ground way 4 (see figure 1)s can also be set on deck in ship structure 11, after turnover panel 2 is translated on the deck in ship structure 11 together with jacket 10, correct on the turnover panel with said ground way 4 and dock; Continuation spurs jacket with steel rope, and jacket is slided on the ground way 4.
With reference to Figure 11, after jacket 10 is removed from turnover panel, can hook the lower end 22 of turnover panel 2 with the suspension hook of steel rope 3; Release clamping mechanism (if any); Turnover panel is unclamped from deck in ship structure, slowly discharge steel rope 2, turnover panel 2 is outwards overturn under the deadweight effect reset; Get back to the initial condition with hull end face almost parallel, so that operation is removed in the navigation of ship or preparation next time.
Claims (10)
1. a jacket is removed ship, it is characterized in that, comprises with lower component:
Hull (1) has a deck in ship structure (11) and a hull end face (12);
Turnover panel (2); Comprise a upper end (21), a lower end (22), a front (23) and a back side (24); The said turnover panel back side (24) is articulated in the intersection of deck in ship structure (11) and hull end face (12) through a roller bearing (7); Turnover panel (2) can overturn between deck in ship structure (11) and hull end face (12) around roller bearing (7), and the flip angle of turnover panel (2) is the obtuse angle;
Winch (34) is fixedly mounted on the said deck in ship structure (11);
Fixed pulley (33) is installed in the upper end (21) of said turnover panel;
Steel rope (3) is located on the said fixed pulley (33), and an end of steel rope (3) is connected on the said winch (34), and the other end of steel rope (3) is provided with suspension hook (31).
2. jacket according to claim 1 is removed ship, it is characterized in that when said turnover panel (2) turn to hull end face (12) almost parallel, turnover panel lower end (22) extended to below the water surface.
3. jacket according to claim 1 is removed ship, it is characterized in that the lower end of said turnover panel (22) can stretch.
4. jacket according to claim 1 is removed ship, it is characterized in that, also is fixed with leading sheave (32) on the said deck in ship structure (11), and said steel rope (3) passes from leading sheave (32) below.
5. jacket according to claim 1 is removed ship, it is characterized in that, also is provided with ground way (4) on the said deck in ship structure (11), and when said turnover panel (2) is turned to deck in ship structure (11) last time, dock with said ground way (4) upper end of turnover panel (2).
6. jacket according to claim 1 is removed ship, it is characterized in that, between said turnover panel (2) and hull, also is provided with the lockable mechanism (9) that is used to stop turnover panel (2) rotation.
7. jacket according to claim 1 is removed ship, it is characterized in that, on said turnover panel (2) back side or deck in ship structure (11), also is provided with damping, buffering mechanism (6), on deck in ship structure (11), is provided with the clamping mechanism (5) that is used to prevent the turnover panel bounce-back.
8. jacket according to claim 1 is removed ship, it is characterized in that the front of said turnover panel (2) is provided with jacket handling guiding mechanism (8).
9. jacket according to claim 8 is removed ship; It is characterized in that; Said turnover panel (2) is made up of two rocking arms (25) and a plurality of hydraulic rams (27) of being connected between two rocking arms, and said two rocking arms (25) are rotatably connected to that said roller bearing (7) is gone up and can laterally slide along said roller bearing (7).
10. jacket according to claim 9 is removed ship, it is characterized in that, said jacket handling guiding mechanism (8) is made up of the roller mount (81,82) that is installed in relatively on two rocking arms (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201578725U CN202557747U (en) | 2012-04-13 | 2012-04-13 | Dismounting ship for jacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201578725U CN202557747U (en) | 2012-04-13 | 2012-04-13 | Dismounting ship for jacket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202557747U true CN202557747U (en) | 2012-11-28 |
Family
ID=47207436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201578725U Withdrawn - After Issue CN202557747U (en) | 2012-04-13 | 2012-04-13 | Dismounting ship for jacket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202557747U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103373446A (en) * | 2012-04-13 | 2013-10-30 | 上海利策科技股份有限公司 | Jacket removing ship and removing method |
| CN107499453A (en) * | 2017-09-02 | 2017-12-22 | 如皋市双亚环保科技有限公司 | A kind of equipment On The Offshore Platform installation system |
-
2012
- 2012-04-13 CN CN2012201578725U patent/CN202557747U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103373446A (en) * | 2012-04-13 | 2013-10-30 | 上海利策科技股份有限公司 | Jacket removing ship and removing method |
| CN107499453A (en) * | 2017-09-02 | 2017-12-22 | 如皋市双亚环保科技有限公司 | A kind of equipment On The Offshore Platform installation system |
| CN107499453B (en) * | 2017-09-02 | 2024-02-02 | 如皋市双亚环保科技有限公司 | Ocean platform device mounting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121128 Effective date of abandoning: 20160330 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |