CN102936888B - Self-installation type offshore booster station structure and installation method thereof - Google Patents
Self-installation type offshore booster station structure and installation method thereof Download PDFInfo
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- CN102936888B CN102936888B CN201210446321.5A CN201210446321A CN102936888B CN 102936888 B CN102936888 B CN 102936888B CN 201210446321 A CN201210446321 A CN 201210446321A CN 102936888 B CN102936888 B CN 102936888B
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Abstract
The invention relates to a self-installation type offshore booster station structure which is safe and high in efficiency, saves cost and has low requirements on ship machine equipment. The technical scheme is that the self-installation type offshore booster station structure comprises at least four steel piles which are vertically and regularly arranged, a guide pipe support fixedly installed above the steel piles and a booster station upper equipment assembly block installed on the guide pipe support, wherein the lower ends of the steel piles stretch deep into a supporting layer under a sea bed. The booster station structure is characterized in that a hoisting mechanism used for hoisting the upper equipment assembly block is arranged at the top end of the guide pipe support. The upper equipment assembly block is defined into an annular shape in splicing mode through a branch assembly block I and a branch assembly block II and is coaxially fixedly sleeved on the periphery of the guide pipe support. The structure is suitable for the field of ocean engineering like offshore wind power generation.
Description
Technical field
The present invention relates to a kind of structure and mounting method thereof of offshore boosting station, be mainly applicable to the ocean engineering fields such as Oversea wind power generation.
Background technology
In China, Oversea wind power generation is an emerging industry, and after 2007, China starts progressively to develop Oversea wind power generation industry.China's Oversea wind power generation industry still belongs to the starting stage, and current domestic built marine wind electric field is that wind-driven generator electricity can be delivered to land, sends into electrical network after being boosted by land booster stations.Along with the development of China's Offshore Wind Power Generation Technology, marine wind electric field offshore distance is more and more far away, wind energy turbine set scale is increasing, traditional mode that land booster stations are set by land because low voltage power transmission line loss is large, the copper material consumption of cable greatly, costly and no longer suitable, in order to the electric energy safe produced by marine wind electric field reliably, economically delivers to inland, just offshore boosting station must be set at sea.Wind-driven generator electricity can be boosted to 110kV, 220kV or higher by offshore boosting station exactly, then delivers to land by high-voltage undersea cable, then sends into inland electrical network through high voltage overhead lines.
Offshore boosting station is arranged on marine site, successively cannot build as land booster stations, equipment is installed one by one, therefore offshore boosting station generally need adopt large-scale floating-crane ship to install, offshore boosting station is after harbour has been built, barge is loaded onto by large-scale crane ship integral lifting, after being transported to erecting bed by barge, lifted by crane from barge by large-scale crane ship again, be installed on basis, because offshore boosting station overall structure size is large, weight is large, the large-scale crane ship of more than 2000t level need be adopted, and domestic large-scale floating-crane ship limited amount, costly, therefore this mounting means is poor to sea situation compliance, mounting cost is high, have a big risk.For reducing cost, offshore boosting station has further capacity increasing trend, and the overall weight of offshore boosting station also increases further, and when weight reaches a ground degree, domestic offshore crane just can not meet its lifting.Along with carrying out on a large scale of China's offshore wind farm construction, offshore boosting station by a large amount of construction, seek a kind of safe, efficient, expense is low, the mounting means low to the requirement of ship machine equipment is very urgent.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of safe and efficient, cost saving, to the low autonomous installing type offshore booster station structure of ship machine equipment requirement and mounting method thereof for above-mentioned Problems existing.
Another problem that the present invention will solve is: without the need to using large-scale crane ship in installation process, relies on the height of sea situation to reduce large-scale crane ship, solves the medium-and-large-sized crane ship of existing mounting means cannot carry out operation problem in the marine site that the depth of water is more shallow.
The technical solution adopted in the present invention is: autonomous installing type offshore booster station structure, comprise at least four vertical and piling bars of regular arrangement, be fixedly installed in jacket above piling bar, and the booster stations top equipment chunk be installed on jacket, wherein piling bar lower end is goed deep into, in the bearing stratum of below sea bed, it is characterized in that: described jacket top is provided with the hoisting mechanism for being sling by described top equipment chunk; Described top equipment chunk is spliced by grouping block I and grouping block II and is encircled into annular, and is coaxially sheathedly fixed on jacket periphery.
The adjustment setting-out cabin for regulating its elevation is provided with in described grouping block II.
Entirety is connected into by bolt or welding manner between described grouping block I and grouping block II.
The bottom of described top equipment chunk and surrounding water-proof sealing, surrounding is provided with waterproof window, and is evenly arranged one group of lifting lug used for hoisting on top.
Be furnished with in the equipment chunk of described top electrically, fire-extinguishing and lifesaving and heating and ventilating equipment.
Described hoisting mechanism is be arranged in one group of hoist engine between jacket head tree and column on crossbeam or tractor system.
The mounting method of offshore booster station structure, is characterized in that step is as follows:
A, the processing completing grouping block I, grouping block II and jacket on land and rigging up and debugging, then utilize barge or towboat that jacket is transported to precalculated position, sinking jacket;
B, utilize barge or towboat that piling bar is transported to jacket place, adopt pile driving barge to be squeezed in sea bed by the pipe casing of piling bar along jacket, and utilize grouting or welding to be connected as a single entity by the pipe casing of piling bar and jacket;
C, utilize towboat to haul grouping block I and grouping block II to jacket place, make grouping block I pincers be located at jacket periphery, and temporary fixed;
D, grouping block II is drawn the opening part to grouping block I correspondence, and by bolt or welding manner, both are connected into doughnut-shaped monolithic formula top equipment chunk, and be sheathed on jacket periphery;
E, to remove between grouping block I and jacket temporary fixed, and utilize hoisting mechanism that top equipment chunk entirety is winched to desired location, and be installed on jacket by bolt or welding manner.
In described steps d, when grouping block I and grouping block II exist difference in height, the water retention capacity in adjustment grouping block II internal regulation setting-out cabin, makes grouping block I and grouping block II be positioned at sustained height, then carries out both connections.
The invention has the beneficial effects as follows: 1, jacket top is provided with hoisting mechanism, offshore boosting station top equipment chunk can be sling, eliminate large-scale sea compared to prior art to hang and relevant auxiliary ship, reduce the requirement to ship machine equipment and hoisting cost on the one hand, also reduce the probability occurring risk in prior art because Potential Working Time For Operation At Sea is long on the other hand.2, owing to not needing in installation process to adopt large-scale crane ship, avoid large-scale crane ship and the height of sea situation is relied on, thus solve the depth of water installs an inconvenience difficult problem compared with neritic zone booster stations.3, adopt the jacket frame foundation structure pattern that offshore platform is conventional, the conduit soil rigidity that relatively floating holder method is installed is comparatively large, without the need to processing jacket both sides, thus decreasing engineering quantity, reducing the cost on jacket basis.4, jacket, grouping block are processed on land and after rigging up and debugging, are utilized the buoyancy that self produces, and are hauled and carry out installing to preposition, eliminate the use of large vessel compared to prior art, reduce cost of transportation by towboat.5, after end of run, independently can remove, be transported by towboat, to recycle, economic environmental protection.
Accompanying drawing explanation
Fig. 1 is stereogram of the present invention.
Fig. 2 is the stereogram of grouping block I in the present invention.
Fig. 3 is the stereogram of grouping block II in the present invention.
Fig. 4 is the structure chart after jacket installation of the present invention completes.
Fig. 5 is the structural representation that jacket periphery is located at by grouping block I pincers of the present invention.
Fig. 6 is the structural representation after Fig. 5 connects grouping block II.
Detailed description of the invention
As shown in Figure 1, the present embodiment comprise four (quantity is determined according to stressing conditions) regular arrangement piling bar 4, be fixedly installed in jacket 8 above piling bar 4, and be installed on the booster stations top equipment chunk on jacket 8.Wherein four piling bars 4 all vertically (or tilting by a small margin) arrange, its lower end is goed deep in the bearing stratum of below sea bed, and each piling bar 4 in the horizontal plane be projected as foursquare four summits.Described jacket 8 bottom is fixedly connected with piling bar 4 by pipe casing 3, top is provided with hoisting mechanism 2, for booster stations top equipment chunk is sling to desired location, be then installed on (this example reserves buckle on jacket top to connect top equipment chunk) on jacket 8.Be furnished with in the equipment chunk of described booster stations top electrically, fire-extinguishing and lifesaving and heating and ventilating equipment etc., and this equipment chunk bottom, top and surrounding water-proof sealing, to ensure that not having seawater in haul process enters in the equipment chunk of top, surrounding is provided with waterproof window 9, and top is evenly arranged one group of lifting lug used for hoisting 10; Described top equipment chunk is spliced by grouping block I 5 and grouping block II 6 and is encircled into annular, and coaxially sheathed to be fixed on jacket 8 peripheral.
As shown in Figure 2, this routine described grouping block I 5 is overall basic in " U " type, and the size of its opening is slightly larger than the size of jacket 8; As shown in Figure 3, described grouping block II 6 is the cuboid matched with grouping block I 5 opening, and is provided with the adjustment setting-out cabin for regulating its elevation therein; Described grouping block I 5 with grouping block II 6 is equipped with assembling guiding and is connected buckle, and be connected to form monolithic side's annular upper portion equipment chunk by bolt or welding manner, the square build notch size that both are encircled into is slightly larger than the size of jacket 8.
Described hoisting mechanism is be arranged in one group of hoist engine between jacket 8 head tree and column on crossbeam or tractor system, and its quantity is determined by stressing conditions.
The concrete installation steps of the present embodiment are as follows:
A, the processing completing grouping block I 5, grouping block II 6 and jacket 8 on land and rigging up and debugging, then utilize barge or towboat jacket 8 to be transported to precalculated position, sinking jacket 8 at sea;
B, utilize barge or towboat that piling bar 4 is transported to jacket 8 place, adopt pile driving barge to be squeezed in sea bed by the pipe casing 3 of piling bar 4 along jacket 8, and utilize grouting or welding to be connected as a single entity by the pipe casing 3 of piling bar 4 with jacket 8, specifically as shown in Figure 4.
C, towboat is utilized to haul grouping block I 5 and grouping block II 6 to jacket 8 place, by designing requirement screens, grouping block I 5 is clamped and is located at jacket 8 periphery, as shown in Figure 5, then utilize the hoisting mechanism on jacket 8 and the hanger 10 in grouping block I 5, grouping block I 5 is temporarily fixed on jacket 8.
D, utilize pulling equipment in grouping block I 5 and hoisting mechanism that grouping block II 6 is drawn the opening part to grouping block I 5, utilize the interim connection of buckle guiding in two grouping block, then by bolt or welding manner, both are connected into doughnut-shaped monolithic formula top equipment chunk; Now equipment chunk in top floats on the water surface under buoyancy, is enclosed within jacket 8 peripheral, as shown in Figure 6 simultaneously.During installation, if grouping block I 5 and grouping block II 6 exist difference in height, the water retention capacity in adjustment grouping block II 6 internal regulation setting-out cabin, makes grouping block I 5 and grouping block II 6 be positioned at sustained height, and then to carry out both connections by abovementioned steps, to ensure the precision that both connect.
E, to remove between grouping block I 5 and jacket 8 temporary fixed, and utilize hoisting mechanism 2 that top equipment chunk entirety is winched to desired location, and be installed on jacket 8 by bolt or welding manner, the installation of the autonomous installing type offshore boosting station of this example can be completed, as shown in Figure 1.
Claims (6)
1. an autonomous installing type offshore booster station structure, comprise at least four vertical and piling bars of regular arrangement (4), be fixedly installed in the jacket (8) of piling bar (4) top, and the booster stations top equipment chunk be installed on jacket (8), wherein piling bar (4) lower end is goed deep into, in the bearing stratum of below sea bed, it is characterized in that: described jacket (8) top is provided with the hoisting mechanism (2) for being sling by described top equipment chunk; Described top equipment chunk is spliced by grouping block I (5) and grouping block II (6) and is encircled into annular, and coaxially sheathed to be fixed on jacket (8) peripheral;
The bottom of described top equipment chunk and surrounding water-proof sealing, surrounding is provided with waterproof window (9), and is evenly arranged one group of lifting lug used for hoisting (10) on top;
Described hoisting mechanism is for being arranged in one group of hoist engine between jacket (8) head tree and column on crossbeam or tractor system.
2. autonomous installing type offshore booster station structure according to claim 1, is characterized in that: be provided with the adjustment setting-out cabin for regulating its elevation in described grouping block II (6).
3. autonomous installing type offshore booster station structure according to claim 1 and 2, is characterized in that: connect into entirety by bolt or welding manner between described grouping block I (5) and grouping block II (6).
4. autonomous installing type offshore booster station structure according to claim 1 and 2, is characterized in that: be furnished with in the equipment chunk of described top electrically, fire-extinguishing and lifesaving and heating and ventilating equipment.
5. a mounting method for offshore booster station structure as claimed in claim 1, is characterized in that step is as follows:
A, the processing completing grouping block I (5), grouping block II (6) and jacket (8) on land and rigging up and debugging, then utilize barge or towboat jacket (8) to be transported to precalculated position, sinking jacket (8);
B, utilize barge or towboat that piling bar (4) is transported to jacket (8) place, adopt pile driving barge to be squeezed in sea bed by the pipe casing (3) of piling bar (4) along jacket (8), and utilize grouting or welding to be connected as a single entity by the pipe casing (3) of piling bar (4) with jacket (8);
C, utilize towboat to haul grouping block I (5) and grouping block II (6) to jacket (8) place, grouping block I (5) is clamped be located at jacket (8) peripheral, and temporary fixed;
D, grouping block II (6) to be drawn to opening part corresponding to grouping block I (5), and by bolt or welding manner, both are connected into doughnut-shaped monolithic formula top equipment chunk, and it is peripheral to be sheathed on jacket (8);
E, to remove between grouping block I (5) and jacket (8) temporary fixed, and utilize hoisting mechanism (2) that top equipment chunk entirety is winched to desired location, and be installed on jacket (8) by bolt or welding manner.
6. the mounting method of offshore booster station structure according to claim 5, it is characterized in that: in described steps d, when there is difference in height in grouping block I (5) and grouping block II (6), the water retention capacity in adjustment grouping block II (6) internal regulation setting-out cabin, make grouping block I (5) and grouping block II (6) be positioned at sustained height, then carry out both connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210446321.5A CN102936888B (en) | 2012-11-09 | 2012-11-09 | Self-installation type offshore booster station structure and installation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210446321.5A CN102936888B (en) | 2012-11-09 | 2012-11-09 | Self-installation type offshore booster station structure and installation method thereof |
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| CN102936888A CN102936888A (en) | 2013-02-20 |
| CN102936888B true CN102936888B (en) | 2015-01-28 |
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| CN105966580B (en) * | 2014-04-30 | 2017-12-05 | 王海龙 | Combined type aircraft carrier |
| CN105569929B (en) * | 2015-12-11 | 2018-09-14 | 江苏海力风电设备科技有限公司 | A kind of wind power generating set offshore boosting station basis and its assembly method |
| CN106014843B (en) * | 2016-07-22 | 2019-03-19 | 高先乐 | Wave energy generating set |
| CN106697189A (en) * | 2016-12-29 | 2017-05-24 | 江苏海上龙源风力发电有限公司 | Installation method for float-dragging method offshore type ocean booster station |
| CN107558743A (en) * | 2017-08-28 | 2018-01-09 | 南通振华重型装备制造有限公司 | A kind of booster stations segmentation division and closure workmanship |
| CN111455959A (en) * | 2019-01-21 | 2020-07-28 | 中国电建集团华东勘测设计研究院有限公司 | Shallow pile type jacket structure for offshore booster station |
| NL2024640B1 (en) * | 2020-01-10 | 2021-09-07 | Van Oord Offshore Wind B V | Method of Installing a Support for Supporting a Load Structure, such as a Wind Turbine, on, for instance, a Sea Bed |
| CN111962487B (en) * | 2020-09-01 | 2024-04-30 | 浙江大学 | Bottom tool and installation method for jacket roll-on and roll-off of offshore wind power booster station |
| CN114837478B (en) * | 2021-02-02 | 2023-07-07 | 中国电建集团华东勘测设计研究院有限公司 | Wet-towed self-installation type offshore substation and seabed big data center integral structure and installation method |
| CN112900404B (en) * | 2021-04-02 | 2024-09-20 | 华电重工股份有限公司 | Self-elevating platform system and method for sliding installation of booster station block |
| CN113670570B (en) * | 2021-08-17 | 2022-12-06 | 上海交通大学 | Jacket simulation device for ocean platform dismounting test |
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