CN202557746U - Conduit rack dismantling ship - Google Patents

Conduit rack dismantling ship Download PDF

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Publication number
CN202557746U
CN202557746U CN2012201573346U CN201220157334U CN202557746U CN 202557746 U CN202557746 U CN 202557746U CN 2012201573346 U CN2012201573346 U CN 2012201573346U CN 201220157334 U CN201220157334 U CN 201220157334U CN 202557746 U CN202557746 U CN 202557746U
Authority
CN
China
Prior art keywords
ship
jacket
turnover panel
actuating cylinder
hydraulic actuating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN2012201573346U
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Chinese (zh)
Inventor
刘爱永
范会渠
张维磋
唐�谦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI RICHTECH CO Ltd
Original Assignee
SHANGHAI RICHTECH CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANGHAI RICHTECH CO Ltd filed Critical SHANGHAI RICHTECH CO Ltd
Priority to CN2012201573346U priority Critical patent/CN202557746U/en
Application granted granted Critical
Publication of CN202557746U publication Critical patent/CN202557746U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a conduit rack dismantling ship which comprises a ship body. The ship body is provided with a ship body deck, slide grooves and a rolling shaft are arranged on the ship body deck, one end of an overturn plate is rotatably mounted on the rolling shaft, and fixed pulleys are arranged at the other end of the overturn plate; first hydraulic cylinders and second hydraulic cylinders are positioned below the overturn plate, lower ends of the second hydraulic cylinders can slide in the slide grooves, and upper ends of the second hydraulic cylinders are hinged with the overturn plate; a winch is fixedly mounted on the ship body deck; and steel wire ropes are penetratingly arranged on the fixed pulleys, one end of each steel wire rope is connected onto the winch, and a hook is arranged at the other end of the each steel wire rope. The conduit rack dismantling ship can complete a conduit rack dismantling, hoisting and shipping process easily and effectively, the overturn plate not only can be used as a crane jib for hoisting a conduit rack, but also can be used as a slide rail for enabling the conduit rack to embark, and construction cost for dismantling the conduit rack is lowered. In addition, the conduit rack dismantling ship brings convenience for operation at sea with stormy waves, and is effectively adaptable to conduit racks at positions with different water depths.

Description

A kind of jacket is removed ship
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 in structure, easy to operate, lower-cost 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; Comprise with lower component: hull; Have a deck in ship structure, on deck in ship structure, be provided with chute and a roller bearing, said roller bearing is positioned near the position of hull end and perpendicular with the direction of said chute; Turnover panel, an end of turnover panel is installed in rotation on the said roller bearing, and the other end of turnover panel is provided with fixed pulley; First hydraulic actuating cylinder is positioned at the below of said turnover panel, and the lower end of first hydraulic actuating cylinder is fixed on the hull, and the upper end of first hydraulic actuating cylinder extends upward; Second hydraulic actuating cylinder is positioned at the below of said turnover panel, can slide in said chute in the lower end of second hydraulic actuating cylinder, and the upper end of second hydraulic actuating cylinder and said turnover panel are hinged; Winch is fixedly mounted on the said deck in ship structure; 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 first hydraulic actuating cylinder and second hydraulic actuating cylinder all are in contraction state, and the lower end of second hydraulic actuating cylinder is when being in first end of said chute, and said turnover panel is parallel with deck in ship structure; When second hydraulic actuating cylinder was in maximum elongation state and lower end and is in second end of said chute, the angle of said turnover panel and deck in ship structure was the obtuse angle.
Further, first end of said chute is near roller bearing, and second end of said chute is away from roller bearing.
Further, said hull is provided with the limited step that is used to limit the maximum flip angle of 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, said turnover panel is provided with the jacket handling guiding mechanism.
Preferably, said turnover panel is made up of two slideways and a plurality of hydraulic rams of being connected between two slideways, and said two slideways are rotatably connected on the said roller bearing and can laterally slide along said roller bearing.
Preferably, said jacket handling guiding mechanism constitutes by being installed in two guide groove seats on the slideway relatively.
Preferably, the hinged cliding seat in the lower end of said second hydraulic actuating cylinder, said cliding seat can slide in said chute.
The utility model is simple in structure, and laid down cost and use cost are lower; Owing on jacket dismounting ship, be provided with turnover panel and rope traction system; 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 dismounting, lifting, the shipment process of jacket 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, as long as the turnover panel in the utility model 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
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is explained further details.
Fig. 1 is the structural representation that a kind of jacket of the utility model is removed ship.
Fig. 2 is the structural representation of turnover panel among the utility model embodiment.
Fig. 3 is the scheme drawing of a kind of jacket handling guiding mechanism in the utility model.
Fig. 4 is the layout scheme drawing of deck in ship structure upper hopper chute.
Fig. 5 is the cutaway view at A-A place among Fig. 4.
Initial condition when Fig. 6 removes jacket for preparation.
Fig. 7, Fig. 8 represent the process that first hydraulic actuating cylinder extends gradually.
Fig. 9, Figure 10 represent the process that second hydraulic actuating cylinder extends gradually.
State when Figure 11 is the cutting catheter frame.
Figure 12 is the state when slinging jacket.
Figure 13 is the state that second hydraulic actuating cylinder shrinks.
Figure 14 is the state that first hydraulic actuating cylinder shrinks.
Figure 15 removes the state that finishes for jacket.
The specific embodiment
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 on the hull 1.Deck in ship structure 11 is provided with two chutes 6 and a roller bearing 7, sees Fig. 4, and roller bearing 7 is positioned near the position of hull end and perpendicular with the direction of chute 6.
Continuation is with reference to Fig. 1, and an end of turnover panel 2 is installed in rotation on the roller bearing 7, and the other end of turnover panel 2 is provided with fixed pulley 33; 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 (see figure 10)s, 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 deck in ship structure 11.
Below turnover panel 2, be provided with first hydraulic actuating cylinder 4 and second hydraulic actuating cylinder 5, wherein the lower end of first hydraulic actuating cylinder 4 is fixed on the hull 1, and the upper end of first hydraulic actuating cylinder 4 extends upward, and can withstand on the back side of turnover panel 2, but is not connected with turnover panel 2; The upper end of second hydraulic actuating cylinder 5 and turnover panel 2 are hinged, and can slide in chute 6 in the lower end of second hydraulic actuating cylinder 5.As a kind of preferred implementation, the hinged cliding seat 51 in the lower end of second hydraulic actuating cylinder 5, this cliding seat 51 can slide (as shown in Figure 5) in chute 6, thereby makes lower end edge chute 6 motions of second hydraulic actuating cylinder 5.
As shown in Figure 4, chute 6 is preferably two parallel, and first hydraulic actuating cylinder 4 and second hydraulic actuating cylinder 5 also are two, and the cliding seat 51 of two second hydraulic actuating cylinder lower ends slides in two chutes 6 respectively.The axis direction of the direction of chute 6 and roller bearing 7 is perpendicular, and first end 61 of chute is near roller bearing 7, and second end 62 of chute is away from roller bearing 7.First hydraulic actuating cylinder 4 is between first end 61 and roller bearing 7 of chute.
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.
As shown in Figure 2; A kind of preferred structure of turnover panel is made up of two slideways 22 and a plurality of hydraulic rams 23 of being connected between two slideways 22; Wherein two slideways 22 are rotatably connected on the roller bearing 7 and also can laterally slide along roller bearing 7, and other has a pillar 21, and the both sides of pillar 21 respectively are provided with a plurality of hydraulic rams 23; One end of hydraulic ram 23 is captiveed joint with pillar 21, and the other end is captiveed joint with slideway 22.When hydraulic ram 23 stretches, can drive two slideways 22 and laterally slide, thereby regulate two distances between the slideway 22 along roller bearing 7, just regulate the width of turnover panel 2.On two slideways 22, also be provided with jacket handling guiding mechanism 8.
As shown in Figure 3; Wherein a kind of preferred structure of jacket handling guiding mechanism is to constitute by being installed in two guide groove seats 81,82 on the slideway; Two guide groove seats 81,82 are oppositely arranged; Guide chute that the centre is low, both sides are high of common formation can supply jacket 10 to slide therein, and prevent that jacket 10 from squinting to both sides in sliding process.
Utilize the utility model to carry out the detailed process that jacket is removed below in conjunction with Fig. 6-Figure 15 explanation.
As shown in Figure 6, remove ship 200 near being positioned at marine jacket 10 with a jacket earlier, the structure of jacket dismounting ship 200 is as previously mentioned.In conjunction with Fig. 1, under initial condition, first hydraulic actuating cylinder 4 and second hydraulic actuating cylinder 5 all are in contraction state, and the lower end of second hydraulic actuating cylinder 5 is positioned at first end of chute 6, and turnover panel 2 parallels with deck in ship structure 11, and second hydraulic actuating cylinder 5 also is the state of approximate horizontal.Turnover panel 2 is contracted on the deck in ship structure 11 when not working, and can reduce the center of gravity of boats and ships when navigation, and reduce windage, increases Stability of Ship.
As shown in Figure 7, at first, 4 elongations of first hydraulic actuating cylinder; Make upwards upset of turnover panel 2 (by anticlockwise direction shown in Figure 7); Turnover panel 2 becomes greatly with the angle of deck in ship structure gradually, and in this process, second hydraulic actuating cylinder 5 can receive the component of a horizontal direction; The lower end edge chute of second hydraulic actuating cylinder 5 is slided, until slide into second end, 62 (see figure 4)s from first end 61.
As shown in Figure 8, when the lower end of second hydraulic actuating cylinder 5 when first end of chute slides into second end, first hydraulic actuating cylinder 4 has reached extreme length, this moment, second hydraulic actuating cylinder, 5 existing enough big angles (with the deck in ship structure approximate vertical) can promote turnover panel 2.
As shown in Figure 9, then 5 beginnings of second hydraulic actuating cylinder are initiatively extended, and promote turnover panel 2 and continue upset, and first hydraulic actuating cylinder 4 breaks away from turnover panel 2 owing to no longer extend.
Shown in figure 10; The lower end of second hydraulic actuating cylinder is positioned at second end of chute; Its upper end continues to promote turnover panel 2, makes the turnover panel 2 and the angle of deck in ship structure 11 become the right angle by acute angle, becomes the obtuse angle that is a bit larger tham 90 degree again; This moment, second hydraulic actuating cylinder reached the maximum elongation state, and second hydraulic actuating cylinder stops and keeping this maximum elongation state then; Hull is provided with the limited step 12 that is used to limit turnover panel 2 maximum flip angles, so that in follow-up lifting process, helps to keep the stable of turnover panel 2.The attitude of adjustment hull lets turnover panel 2 face jacket to be removed 10, and as far as possible near.The suspension hook 31 of steel rope 3 lower ends hangs down from the fixed pulley 33 of turnover panel 2 upper ends.
Shown in figure 11, the suspension hook of steel rope 3 is fixed on the jacket 10; Rotate winch 34 tense wire ropes 3 then, but need not apply too big pulling force.The tension that keeps steel rope 3, 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.
Shown in figure 12, after the lower end of jacket 10 cuts off fully, with winch 34 Wound steel ropes 3; This moment, turnover panel 2 played the arm effect; Jacket 10 is pulled up, and surfaces until the lower end of jacket 10, and is in the altitude range of turnover panel 2; Winch 34 stops to promote jacket 10, but keeps the pulling force to steel rope 3.
Shown in figure 13; Second hydraulic actuating cylinder 5 begins to shrink then, drives turnover panel 2 reverse (clockwise direction) upset, and turnover panel 2 diminishes with the angle of deck in ship structure 11 gradually; Simultaneously side of jacket 10 and turnover panel 2 are fitted fully; Obviously in this process, winch also should rotate synchronously, to keep the tension of steel rope.
Because the weight of jacket 10 is very big, in turnover panel 2 rotating process, jacket can break away unavoidably, and jacket handling guiding mechanism shown in Figure 3 can play centralizing function.In addition; Because jacket 10 all is up-small and down-big trapezium structure generally; And the jacket handling guiding mechanism is fixed on the turnover panel; In order to adapt to the wide variety of different size jacket, turnover panel structure shown in Figure 2 can realize the adjusting of width, and the width of jacket handling guiding mechanism can be changed as requested.
Shown in figure 14, when second hydraulic actuating cylinder 5 and deck in ship structure roughly in vertical state the time, turnover panel 2 contacts with the upper end of first hydraulic actuating cylinder 4.Then; First hydraulic actuating cylinder 4 begins turnover panel 2 is provided support power, and first hydraulic actuating cylinder 4 also slowly shrinks, and turnover panel 2 continues to diminish with the angle of deck in ship structure; After this because turnover panel 2 acts on the horizontal component of force switching-over on second hydraulic actuating cylinder 5; Make the lower end of second hydraulic actuating cylinder 5 begin in chute, to slide, slide back first end from second end, second hydraulic actuating cylinder 5 can't form effectively turnover panel 2 and support.Along with the continuation of first hydraulic actuating cylinder 4 is shunk; Turnover panel 2 also slowly falls after rise, and is parallel with deck in ship structure 11 until turnover panel 2, shown in figure 15; Finally make jacket 10 on the turnover panel 2 be positioned at deck in ship structure 11 directly over, accomplish the overall process of dismounting, lifting and the shipment of jacket 10.At last, can jacket 10 be transported on the bank by this jacket dismounting ship or other ship.

Claims (9)

1. a jacket is removed ship, it is characterized in that, comprises with lower component:
Hull (1) has a deck in ship structure (11), on deck in ship structure (11), is provided with a chute (6) and a roller bearing (7), and said roller bearing (7) is positioned near the position of hull end and perpendicular with the direction of said chute (6);
Turnover panel (2), an end of turnover panel (2) are installed in rotation on the said roller bearing (7), and the other end of turnover panel (2) is provided with fixed pulley (33);
First hydraulic actuating cylinder (4) is positioned at the below of said turnover panel (2), and the lower end of first hydraulic actuating cylinder (4) is fixed on the hull (1), and the upper end of first hydraulic actuating cylinder (4) extends upward;
Second hydraulic actuating cylinder (5) is positioned at the below of said turnover panel (2), can slide in said chute (6) in the lower end of second hydraulic actuating cylinder (5), and the upper end of second hydraulic actuating cylinder (5) and said turnover panel (2) are hinged;
Winch (34) is fixedly mounted on the said deck in ship structure (11);
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 first hydraulic actuating cylinder (4) and second hydraulic actuating cylinder (5) all are in contraction state, and the lower end of second hydraulic actuating cylinder (5) is when being in first end (61) of said chute, and said turnover panel (2) is parallel with deck in ship structure (11); When second hydraulic actuating cylinder (5) was in maximum elongation state and lower end and is in second end (62) of said chute, said turnover panel (2) was the obtuse angle with the angle of deck in ship structure (11).
3. jacket according to claim 2 is removed ship, it is characterized in that first end (61) of said chute is near roller bearing (7), and second end (62) of said chute is away from roller bearing (7).
4. jacket according to claim 2 is removed ship, it is characterized in that said hull (1) is provided with the limited step (12) that is used to limit the maximum flip angle of turnover panel (2).
5. 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.
6. jacket according to claim 1 is removed ship, it is characterized in that said turnover panel (2) is provided with jacket handling guiding mechanism (8).
7. jacket according to claim 6 is removed ship; It is characterized in that; Said turnover panel (2) is made up of two slideways (22) and a plurality of hydraulic rams (23) of being connected between two slideways, and said two slideways (22) are rotatably connected to that said roller bearing (7) is gone up and can laterally slide along said roller bearing (7).
8. jacket according to claim 7 is removed ship, it is characterized in that, said jacket handling guiding mechanism (8) is made up of the guide groove seat (81,82) that is installed in relatively on two slideways (22).
9. jacket according to claim 1 is removed ship, it is characterized in that, and the hinged cliding seat in the lower end of said second hydraulic actuating cylinder (5) (51), said cliding seat (51) can slide in said chute (6).
CN2012201573346U 2012-04-13 2012-04-13 Conduit rack dismantling ship Withdrawn - After Issue CN202557746U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201573346U CN202557746U (en) 2012-04-13 2012-04-13 Conduit rack dismantling ship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201573346U CN202557746U (en) 2012-04-13 2012-04-13 Conduit rack dismantling ship

Publications (1)

Publication Number Publication Date
CN202557746U true CN202557746U (en) 2012-11-28

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CN2012201573346U Withdrawn - After Issue CN202557746U (en) 2012-04-13 2012-04-13 Conduit rack dismantling ship

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103373447A (en) * 2012-04-13 2013-10-30 上海利策科技股份有限公司 Jacket disassembling boat and jacket disassembling method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103373447A (en) * 2012-04-13 2013-10-30 上海利策科技股份有限公司 Jacket disassembling boat and jacket disassembling method
CN103373447B (en) * 2012-04-13 2015-12-30 上海利策科技股份有限公司 A kind of jacket removes ship and jacket method for dismounting

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C14 Grant of patent or utility model
GR01 Patent grant
C25 Abandonment of patent right or utility model to avoid double patenting
AV01 Patent right actively abandoned

Granted publication date: 20121128

Effective date of abandoning: 20151230