CN204415681U - Semi-submersible lng floating blower foundation and floating blower fan - Google Patents
Semi-submersible lng floating blower foundation and floating blower fan Download PDFInfo
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- CN204415681U CN204415681U CN201420711900.2U CN201420711900U CN204415681U CN 204415681 U CN204415681 U CN 204415681U CN 201420711900 U CN201420711900 U CN 201420711900U CN 204415681 U CN204415681 U CN 204415681U
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
- B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
- B63B1/107—Semi-submersibles; Small waterline area multiple hull vessels and the like, e.g. SWATH
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
- B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
- B63B1/12—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly
- B63B1/125—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising more than two hulls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
- B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
- B63B1/12—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly
- B63B2001/128—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising underwater connectors between the hulls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric energy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
- B63B2039/067—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water effecting motion dampening by means of fixed or movable resistance bodies, e.g. by bilge keels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model provides a kind of semi-submersible lng floating blower foundation and floating blower fan, comprising: at least three columns; Upright post connection structure, is connected respectively with the lower end of each column, forms one to make column and upright post connection structure; Support post, is arranged on the central authorities of floating blower foundation, and for supporting the pylon of blower fan, cabin, blade and wind power generating set, wherein, the desired location of cross-sectional area all below the water surface of each column upwards becomes large.Float blower fan, comprising: described semi-submersible lng floating blower foundation; Pylon, is arranged on the support post of described semi-submersible lng floating blower foundation; Cabin, is arranged on the top of pylon; Wind power generating set and blade, be arranged on the front end in cabin.By applying above-mentioned semi-submersible lng floating blower foundation, the structure of blower fan of floating and exercise performance are all enhanced, and reduce and produce raw this and cost of installation.
Description
Technical field
The utility model relates to offshore wind generating field, more particularly, relates to a kind of semi-submersible lng floating blower foundation of structural development and has the floating blower fan of this semi-submersible lng floating blower foundation.
Background technology
Region, deep-sea more than 50 meters, the more more high-qualitys of the wind-resources that can develop, market outlook are also more wide.Develop the deep-sea wind energy turbine set in these marine sites, what generally adopt according to current Offshore Winds variously runs through the way that pilework is fixed on seabed and will not possess advantage, because: along with the depth of water increases, fixed type basic cost straight line rises; Fixed offshore blower fan construction O&M cost is higher than floating type.Therefore, in order to make the construction of marine wind electric field can develop to abyssal area, the buoyant wind electrical generator of exploiting economy practicality is needed.Therefore, how to develop motion characteristics excellence, compact conformation, economical and practical floating type blower foundation become the problem developing floating type blower fan most critical.
The load that the floating type blower foundation being applied to offshore wind farm field bears is different from the mobile unit in traditional sea oil engineering, because floating type offshore wind turbine foundation is except bearing the synergy of stormy waves stream, also to bear the gyro turning leverage caused by the operation of this tall and slender structure of blower fan, capsizing moment Mx, My and the moment of torsion Mz around vertical axis, whole blower fan can produce the strenuous exercise of six-freedom degree, comprise X, Y and Z axis move axially and around the swing of axle, the change oar of this fan and yaw control system bring huge challenge, the normal operation of blower fan can be had influence on, affect electric energy generated, the even safety of entail dangers to whole system structure.
Therefore, be necessary to develop a kind of floating blower foundation that wind power generating set held stationary can be made to run.
Utility model content
The purpose of this utility model is the semi-submersible lng floating blower foundation providing a kind of structure to improve and the floating blower fan with this semi-submersible lng floating blower foundation.
Another object of the present utility model is the semi-submersible lng floating blower foundation providing a kind of exercise performance to improve and the floating blower fan with this semi-submersible lng floating blower foundation.
Another object of the present utility model is to provide the semi-submersible lng floating blower foundation that a kind of productive costs and cost of installation reduce and the floating blower fan with this semi-submersible lng floating blower foundation.
To achieve these goals, provide a kind of semi-submersible lng floating blower foundation, comprising: at least three columns; Upright post connection structure, is connected respectively with the lower end of each column, forms one to make column and upright post connection structure; Support post, is arranged on the central authorities of floating blower foundation, and for supporting the pylon of blower fan, cabin, blade and wind power generating set, wherein, the desired location of cross-sectional area all below the water surface of each column upwards becomes large.
The cross-sectional area of described column can be undergone mutation in described desired location.
The cross-sectional area of described column upwards can increase gradually from described desired location.
Described column the part below described desired location can have identical cross-sectional plane.
The bottom of described column can be provided with to hang down swings plate.
The outer surface of described column can tilt relative to the outside of vertical direction to floating blower foundation.
The outside of described column can be outward-dipping relative to vertical direction 5 degree to 10 degree.
The inner surface of described column can keep vertical.
Be connected to each other by straight strut and hound between each column and support post.
Described upright post connection structure can be end buoyancy tank or truss structure.
Ballast water control system can be provided with in the bottom of column and end buoyancy tank.
Multiple rectification hole can be formed with vertical swinging on plate.
The vertical plate that swings is connected with column by the pipe link tilted.
Described floating blower foundation is anchored in seabed by catenary mooring hawser.
Described floating blower foundation is anchored in seabed by catenary mooring hawser, and wherein, the upper end of mooring hawser can be swung plate and be connected with hanging down.
Buoyancy tank of the described end can have Y shape shape.
According to another aspect of the present utility model, provide a kind of blower fan that floats, comprising: semi-submersible lng floating blower foundation as above; Pylon, is arranged on the support post of described semi-submersible lng floating blower foundation; Cabin, is arranged on the top of pylon; Wind power generating set and blade, be arranged on the front end in cabin.
The utility model not only can be realized than traditional semi-submersible type platform structure loss of weight at least 20% by application variable section column, but also can realize that whole floating type blower fan is wet drags installation, avoids and uses expensive Large marine carrier and installation ship.
The variable section semi-submersible lng floating blower foundation that the utility model proposes is when Intermediate Water Depth's marine usage, the overall target of exercise performance, economy and installation O&M is better than jacket basis, such as 6MW blower fan, the comparable jacket basis of this basic steel using amount reduces about 15%.
The utility model proposes arrange in the bottom of column to hang down is swung plate and can be provided larger additional damping and added mass, reduces foundation motion amplitude, can meet blower fan and normally run power generation requirements, improve electric energy generated; And, when the comprehensive variable section column that adopts and hang down swing plate, with traditional semi-submerged platform ratio, integral structure cost about 30% can be reduced.
According to the convenient processing and manufacture of semi-submersible lng floating blower foundation of the present utility model, can build in general dock or on building berth, complete machine is carried out assembled at bank harbour, less demanding to harbour depth, overallly can wet and drag, eliminate the large-scale floating crane ship that conventional offshore lifting needs, install to offshore wind turbine and offer convenience, greatly save transport cost of installation.
For the floating blower fan that have employed according to semi-submersible lng floating blower foundation of the present utility model, when the large part replacement of needs or chance typhoon are attacked, can untie the mooring rope, only need a common towboat overall towage can to go back to port and carry out part replacement or wind sheltering, maneuverability performance is good, save the high expense of large-scale floating crane ship and carrier, avoid the harm that typhoon causes unit.
Accompanying drawing explanation
By the description carried out below in conjunction with accompanying drawing, above-mentioned and other object of the present utility model and feature will become apparent, wherein:
Fig. 1 is the block diagram of the floating blower fan of the semi-submersible lng floating blower foundation applied according to embodiment of the present utility model;
Fig. 2 is the block diagram of semi-submersible lng floating blower foundation according to embodiment of the present utility model and mooring system thereof;
Fig. 3 is the block diagram of the semi-submersible lng floating blower foundation according to embodiment of the present utility model.
Detailed description of the invention
Below, embodiment of the present utility model is described in detail with reference to accompanying drawing.
As shown in Figure 1, floating blower foundation 10, mooring hawser 20, pylon 30, cabin 40, wind power generating set 50 and blade 60 is comprised according to the floating type blower fan of embodiment of the present utility model or floating blower fan 100.According in embodiment of the present utility model, the blower foundation 10 that floats is semi-submersible lng floating blower foundation, as its name suggests, floating blower fan 100 installation in position in sea time, a part for floating blower foundation 10 can be submerged in below sea, support the main body of blower fan by this way, that is, pylon 30, cabin 40, wind power generating set 50 and blade 60 etc.Because floating blower foundation 10 can move with wave, therefore it is anchored in seabed by mooring hawser 20.Preferably, mooring hawser 20 is catenary mooring hawser.
As shown in Figure 1 to Figure 3, the central authorities of floating blower foundation 10 are provided with support post 11, and support post 11 is connected with pylon 30, with support be arranged on pylon 30 top cabin 40, wind power generating set 50 and blade 60.As shown in Figure 1, blower fan has three blades 60, and the rotor of generator set 50 is interacted with stator by the rotation of blade 60, thus can be electric energy by wind energy transformation.In fig. 1, although show blower fan to have three blades, the utility model is not limited to three, and blower fan also can have 2 or more blades.
The concrete structure according to the semi-submersible lng floating blower foundation 10 of embodiment of the present utility model is described in detail below in conjunction with accompanying drawing 2-3.
As shown in Figure 2 to Figure 3, the blower foundation 10 that floats comprises three columns 12 and the end buoyancy tank 13 being connected column 12.End buoyancy tank 13 has Y shape shape, that is, three external parts of end buoyancy tank 13 are connected with the lower end of each column 12 respectively, the formula structure thus column 12 and end buoyancy tank 13 form as one.Support post 11 is provided with, for supporting the main body of blower fan in the central authorities (i.e. the central authorities of whole floating blower foundation 10) of end buoyancy tank 13.Support post 11 has cylinder form, and its top is connected by the bottom of flange with pylon 30.The effect of support post 11, beyond support tower 30 and fan main body (that is, cabin 40, generator set 50 and blade 60), can also be placed regulator cubicle etc. therein, increase arrangement space.The shape of cross section of support post 11 is not limited to circle, also can adopt square configuration.
The blower foundation 10 that floats also comprises the multiple struts connecting column 12 and support post 11.Multiple strut comprises straight strut 14 and hound 15.As shown in Figures 2 and 3, be connected with a hound 15 by a straight strut 14 between each column 12 and support post 11, wherein, straight strut 14 is connected between the upper end of column 12 and the upper end of support post 11, and hound 15 is connected between the upper end of support post 11 and the lower end of column 11 obliquely, strengthen the connection structure of column 11, support post 14 and end buoyancy tank 13 with this.
Although show end buoyancy tank 13 in an embodiment as upright post connection structure, the utility model is not limited thereto, and truss structure also can be adopted to replace end buoyancy tank.But, comparatively speaking, adopt end buoyancy tank as upright post connection structure except structural effect, in addition following benefit: because buoyancy tank at the bottom of Y shape 13 is positioned at down the depths of below the water surface in working order, substantially reduce wave force.In addition, according in embodiment of the present utility model, at the bottom of Y shape, each external part of buoyancy tank 13 has rectangular longitudinal cross section, effectively increase whole floating foundation 10 vertically to swing, additional damping that rolling, pitching and head shake and added mass, thus reach the object reducing whole floating blower fan motion amplitude.When bank is assembled, this end buoyancy tank 13 provides buoyant support whole floating blower fan, makes the drinking water on basis more shallow, meets the light-draft requirement in harbour; Under designed draft, in this end buoyancy tank 13, be full of ballast water, reduce whole basic center of gravity, improve stability and rough water quality.
In order to reduce the destructive effect because the impact of wave to floating foundation 10 brings, the cross-sectional plane of column 12 and the vertical sectional shape of end buoyancy tank 13 are preferably with fillet.
Float blower foundation 10 also can comprise hang down swing plate 16, hang down swing the bottom that plate 16 is arranged on each column 12, and by tilt pipe link 17 be connected with the lower end of column 12.Each hanging down is swung plate 16 and can be had round-shaped.
Multiple rectification hole is formed vertical swinging on plate 16.The void content of swinging plate of hanging down is determined by Fluid Computation analysis software or model test.The vertical plate 16 that swings according to the meteorology and hydrology condition in target marine site, in conjunction with actual fan operation operating mode, can carry out complete machine dynamical analysis acquisition load and carries out structural strength analysis to determine size with the scantling of structure of the pipe link 17 tilted.The Main Function swinging plate 10 that hangs down increases to hang down to swing horizontal stroke/pitching additional damping and added mass, thus reduce the motion amplitude of floating foundation 10, and the rectification hole on it effectively improves the fluid flow hanging down and swing near plate, further increases additional damping.
But the utility model is not limited thereto, the shape of swinging plate 16 of hanging down is not limited to circle, also can adopt polygonal shape, and selectably arrange rectification hole.
When exist hang down swing plate 16, mooring hawser 20 can swing plate 16 and is connected, with the whole blower fan of anchoring with hanging down.Mooring hawser 16 can use various suitable material to be formed, the such as combination etc. of steel pipe, polyurethane, wirerope, anchor chain or these materials.If not arranging hangs down swing plate 16, then mooring hawser 20 can be connected to the outer rim of the lower end of column 12.Preferably, each column can be connected with two mooring hawsers 20, is anchored stably to keep whole floating blower fan.
As shown in Figure 1 to Figure 3, column 12 is variable section square column.The concrete structure of column 12 will be described in detail below.
According to embodiment of the present utility model, the cross-sectional area of column 12 upwards becomes large from the desired location of its underpart.That is, the cross-sectional area of the part of column 12 more than desired location is greater than the cross-sectional area of the part of column 12 below desired location.As shown in Figures 2 and 3, the cross-sectional area according to the column 12 of embodiment of the present utility model upwards increases gradually from desired location, and the cross-sectional area of the part of column 12 below desired location then remains unchanged.Due to floating foundation of the present utility model be semi-submersible lng floating basis, therefore in working order under, can submerge in water in the bottom of column 12.Desired location is arranged on certain position below the water surface of the bottom of column 12.Like this, variable section column 12 can increase the stability of floating type basis under free floating condition and rough water quality.
Preferably, described desired location can the degree of depth of about 10 meters under water.
Preferably, the inner side of column 12 (particularly, the side facing to center support column 11 of column 12 is inner side) keep vertical, outside starts flare 5 ~ 20 ° from pre-position be under water the top of conical surface even transition to column 12, preferably, outside starts flare 5 ~ 10 ° from pre-position under water.Due to the outside flare of column 12, the blower foundation 10 horizontal strokes/pitch angular that floats is larger, then waterplane area is larger, and the area centre of form is larger to the distance of S. A., and moment of area is larger, and the restoring force therefore provided is larger.Meanwhile, the water surface following partial cross section size is little, and coupled end buoyancy tank 13 size also can diminish, and effectively reduces scantling of structure and weight, improves Fabric utilization, reduce manufacturing cost.
Variable section square column 12, to be connected with 15 by strut 14 between central circular support post 11 with end buoyancy tank 13, ensure that the blower fan load on top reasonably disperses to be delivered on floating foundation 10, ensures the bulk strength of whole floating type basic design on the other hand on the one hand.
Whole floating foundation 10 can the designed draft degree of depth about 10 ~ 20m, bottom each column 12 and end buoyancy tank 13 inside be provided with ballast water control system in order to regulate the drinking water of towage and operating mode in place, thus overall towage can be realized.Whole basis has obvious infrastructure cost and installs O&M cost advantage, and exercise performance is excellent, and meet movement needs under blower fan normal power generation operating mode, under the extreme sea condition of fifty year return period, motion amplitude is no more than 5 °, and horizontal displacement is no more than 10% of the depth of water.
When there is no end buoyancy tank 13, only ballast water control system can be set in the bottom of column 12.Ballast water control system can use seawater, sandstone or its combination to carry out ballast.
In above-described embodiment, all parts are all connected together by welding, and middle circular support post 11 is connected with top pylon 30, need the structural strength analysis under cooperation fan operation operating mode and extreme sea condition reasonably to strengthen.Variable section column 12 and end buoyancy tank 13 inside need to carry out rationally strengthening to bear hydrostatic pressure and wave pressure load, its scantling of structure can meet buoyancy, stability and requirement of strength, and avoid under Wave energy concentrates the prerequisite of frequency range, pylon fundamental frequency, blower fan 1P and 3P frequency limit, base water tractive performance can be optimized by pneumatic-waterpower-control-structure complete machine Dynamic Analysis Software, hydrodynamic force software or model test, obtain optimum structure size.
Although not shown, but the top of variable section column 12 also can arrange guardrail, arrange the equipment such as windlass, be convenient to safeguard that ship is after square column 12 side is stopped, on-the-spot operation maintenance personnel is stepped on and is then entered blower fan by the passage of connection column 12 and midship mounting column 11 by this platform and safeguard simultaneously.
In the above embodiments, the change achieving cross-sectional area in the mode that the outside of column 12 is outward-dipping from desired location is large, but the utility model is not limited thereto, and such as, the sudden change of cross-sectional area also can appear in column 12 in pre-position.Suddenlyd change in pre-position by the cross-sectional area of column 12, can at this position forming station stage structure, this is similar to have installed to hang down in the pre-position of column 12 and swings plate, thus increases the vertical of blower fan that float and swing horizontal stroke/pitching additional damping and added mass.
On this basis, the cross-sectional area of the part of column 12 more than desired location can increase gradually or remain unchanged.Moreover, also form two or more ledge structures successively by the bottom at column 12, or arrange multilayer in addition and hang down and swing plate, this all can increase the vertical of floating blower fan and swing horizontal stroke/pitching additional damping and added mass, thus improves the stability of blower fan of floating.
The mode increasing the cross-sectional area of column 12 is also not limited thereto, such as, the inner side (or madial wall) of column 12 and outside (or lateral wall) can be inside and outward-dipping relative to vertical direction respectively, or whole sidewalls of column 12 are all outward-dipping relative to the vertical direction at the center through column.
In embodiment of the present utility model, describe variable section column of the present utility model for the variable section square column 12 of three band roundings, but the utility model is not limited thereto, and such as, the number of column can be 4 or more; The shape of cross section of column 11 is also not limited to substantially rectangular, such as, can also be the various suitable shapes such as circular, oval, roughly square or above-mentioned shape combination.Similarly, the shape of end buoyancy tank 13 is also not limited thereto.Such as, when column is 4, end buoyancy tank 13 or truss structure can be formed according to back-shaped shape, when column is 5 or more, end buoyancy tank or truss structure can be formed according to radiate pattern, and correspondingly, each column 13 can be separately positioned on the angle place of end buoyancy tank or truss structure; Each external part of end buoyancy tank 13 or the vertical sectional shape of connecting bridge are also not limited to substantially rectangular, also can adopt the various suitable shapes such as circle, ellipse, square.
The foregoing describe the structure of the floating blower fan adopting the semi-submersible lng floating blower foundation of variable section column and there is this floating blower foundation.All-steel structure can be adopted according to variable section semi-submersible lng floating basis of the present utility model, for the wind power generating set of different capabilities, the port and pier near bank can be selected to carry out assembled when building, overall wetting is dragged to place of erection again, then located by mooring, and without the need to daily attention requirement.
By being described clearly above, according to the semi-submersible lng floating blower foundation of embodiment of the present utility model at least tool have the following advantages:
(1) the utility model is owing to have employed variable section column, and above water sectional area is large, and have larger waterplane area square, during towage, static stability and rough water quality are all good, avoids and uses expensive Large marine installation ship, reduce cost of installation; Moreover, the application of variable section column contributes to effectively reducing lower apron structural steel amount, improves Fabric utilization, reduces steel using amount, reduce infrastructure cost.
(2) swing plate because column bottom is configured with to hang down, effectively increase additional damping and added mass, the adjustment vertical cycle of swinging avoids the periodic regime (usual 3 ~ 20s) that Wave energy is concentrated, and heaving reduces at least 20%; Also increase horizontal stroke/pitching added mass and damping simultaneously, make whole foundation motion performance better, swing angle reduces at least 15%; Because the overall horizontal stroke/pitching of floating blower fan and heaving cycle are at below 3s, avoid 3 ~ 20s periodic regime that Wave energy is concentrated, avoid the fundamental frequency of pylon, also avoid 1P, 3P frequency limit of blower fan simultaneously, efficiently reduce the resonance response of whole floating type blower fan system, reduce complete machine ultimate load and fatigue load level, ensure that fan safe reliability service; By variable section column and vertical combination technique of swinging plate, also can reduce the horizontal stroke/pitching motion amplitude of whole floating blower fan system significantly, reduce the angle of incoming flow and impeller, add the electric energy generated of blower fan below wind rating; When the comprehensive variable section column that adopts and hang down swing plate, with traditional semi-submerged platform ratio, integral structure cost about 30% can be reduced;
(3) the utility model variable section semi-submersible lng floating blower foundation, exercise performance is excellent, be particularly suitable for the marine site of more than depth of water 30m, lower than conventional float formula blower foundation cost, and there is unique advantage---mobility is good, O&M is convenient, and reclaim utilizability good, assembling and disassembling is little to environmental concerns.
(4) mooring system of the present utility model can adopt polyurethane hawser or wirerope, reduces mooring cost and difficulty of construction.
(5) the utility model has obvious installation advantage: when bank port and pier complete machine is assembled, by adjusting the ballast water in three columns and end buoyancy tank, the drinking water on basis is made to meet the assembled requirement of whole floating structure, at this moment absorb water more shallow (being no more than 8 meters), ballast water is adjusted to certain drinking water after assembled, complete machine is wet, and to be dragged to place of erection in place, the valve being communicated with buoyancy tank inside, the end can be opened, pour into ballast water, then mooring hawser is connected, again by adjusting loading system to discharge ballast water until designed draft, whole simple to operation, cost is lower, semi-submersible lng floating basic equipment shifting ballast water system of the present utility model also meets that various bank is assembled, stability requirement under the various operating mode such as towage and mode of operation in place, and under making various operating mode, offshore construction operation easily becomes possibility, in the utility model, variable section semi-submersible lng floating basis also can be built on dock or building berth, do not need complicated aloft work, and the assembled of whole floating type blower fan can be completed at bank harbour by land loop wheel machine, then overall towage (wet and drag), to place of erection, is located by mooring.Therefore this utility model possesses that version is simple, easy to process, cost is lower, is easy to the feature that realizes, and the utility model is standby as a kind of important extra large frock developing deep-sea wind energy turbine set, for supporting the safe operation of more than 5MW Large Copacity Wind turbines.
The utility model is not limited to above-described embodiment, when not departing from the utility model scope, can carry out various changes and modifications.
Claims (17)
1. a semi-submersible lng floating blower foundation, comprising:
At least three columns;
Upright post connection structure, is connected respectively with the lower end of each column, forms one to make column and upright post connection structure;
Support post, is arranged on the central authorities of floating blower foundation, for supporting the pylon of blower fan, cabin, blade and wind power generating set,
It is characterized in that, the desired location of cross-sectional area all below the water surface of each column upwards becomes large.
2. semi-submersible lng floating blower foundation as claimed in claim 1, it is characterized in that, the cross-sectional area of described column is undergone mutation in described desired location.
3. semi-submersible lng floating blower foundation as claimed in claim 1 or 2, it is characterized in that, the cross-sectional area of described column upwards increases gradually from described desired location.
4. semi-submersible lng floating blower foundation as claimed in claim 1, it is characterized in that, the part of described column below described desired location has identical cross-sectional plane.
5. semi-submersible lng floating blower foundation as claimed in claim 1, is characterized in that, the bottom of described column is provided with to hang down swings plate.
6. semi-submersible lng floating blower foundation as claimed in claim 3, it is characterized in that, the outer surface of described column tilts relative to the outside of vertical direction to floating blower foundation.
7. semi-submersible lng floating blower foundation as claimed in claim 6, is characterized in that, outward-dipping relative to vertical direction 5 degree to 10 degree of the outside of described column.
8. semi-submersible lng floating blower foundation as claimed in claim 6, is characterized in that, the inner surface of described column keeps vertically.
9. semi-submersible lng floating blower foundation as claimed in claim 1, be is characterized in that, be connected to each other between each column and support post by straight strut and hound.
10. semi-submersible lng floating blower foundation as claimed in claim 1, it is characterized in that, described upright post connection structure is end buoyancy tank or truss structure.
11. semi-submersible lng floating blower foundations as claimed in claim 10, is characterized in that, in the bottom of column and end buoyancy tank, be provided with ballast water control system.
12. semi-submersible lng floating blower foundations as claimed in claim 5, is characterized in that, are formed with multiple rectification hole vertical swinging on plate.
13. semi-submersible lng floating blower foundations as claimed in claim 5, is characterized in that, the vertical plate that swings is connected with column by the pipe link tilted.
14. semi-submersible lng floating blower foundations as claimed in claim 1, it is characterized in that, described floating blower foundation is anchored in seabed by catenary mooring hawser.
15. semi-submersible lng floating blower foundations as claimed in claim 5, it is characterized in that, described floating blower foundation is anchored in seabed by catenary mooring hawser, and wherein, the upper end of mooring hawser is swung plate and is connected with hanging down.
16. semi-submersible lng floating blower foundations as claimed in claim 10, it is characterized in that, buoyancy tank of the described end has Y shape shape.
17. 1 kinds of floating blower fans, is characterized in that, comprising:
As the semi-submersible lng floating blower foundation as described in arbitrary in claim 1 to 16;
Pylon, is arranged on the support post of described semi-submersible lng floating blower foundation;
Cabin, is arranged on the top of pylon;
Wind power generating set and blade, be arranged on the front end in cabin.
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| CN201420711900.2U CN204415681U (en) | 2014-11-24 | 2014-11-24 | Semi-submersible lng floating blower foundation and floating blower fan |
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| CN201420711900.2U CN204415681U (en) | 2014-11-24 | 2014-11-24 | Semi-submersible lng floating blower foundation and floating blower fan |
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| US20130233231A1 (en) * | 2010-11-04 | 2013-09-12 | University Of Maine System Board Of Trustees | Floating Wind Turbine Platform and Method of Assembling |
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| JP2019521906A (en) * | 2016-07-26 | 2019-08-08 | イエフペ エネルジ ヌヴェルＩｆｐ Ｅｎｅｒｇｉｅｓ Ｎｏｕｖｅｌｌｅｓ | Floating support structure having a float and a damping plate having an opening row |
| FR3054523A1 (en) * | 2016-07-26 | 2018-02-02 | Ifp Energies Now | FLOATING SUPPORT COMPRISING A FLOAT AND A DAMPING PLATE HAVING A ROW OF ORIFICES |
| US11173989B2 (en) | 2016-07-26 | 2021-11-16 | IFP Energies Nouvelles | Floating support structure comprising a floater and a damping plate with a row of apertures |
| CN109476361A (en) * | 2016-07-26 | 2019-03-15 | Ifp新能源公司 | The floating support structure of damping sheet including floating body and with aperture in a row |
| CN109562814A (en) * | 2016-07-26 | 2019-04-02 | Ifp新能源公司 | The floating support structure of damping sheet including floating body and with the cross section with change in depth |
| CN106985983B (en) * | 2017-02-21 | 2019-04-12 | 中交第二航务工程局有限公司 | Increase the heave plate of engineering ship stability |
| CN106985983A (en) * | 2017-02-21 | 2017-07-28 | 中交第二航务工程局有限公司 | Increase the heave plate of engineering ship stability |
| FR3072643A1 (en) * | 2017-10-19 | 2019-04-26 | Dietswell | FLOATING WIND TURBINES WITH REDUCED PILLARS |
| CN108005098A (en) * | 2017-12-13 | 2018-05-08 | 四川建筑职业技术学院 | A kind of firm banking of deep-sea oil production platform frame |
| CN110155260A (en) * | 2019-04-24 | 2019-08-23 | 华中科技大学 | A kind of tuned mass damper platform suitable for semi-submersible type wind-driven generator |
| FR3109924A1 (en) * | 2020-05-05 | 2021-11-12 | Naval Energies | FLOAT ESPECIALLY OF OFFSHORE WIND TURBINE |
| CN114291219A (en) * | 2021-11-22 | 2022-04-08 | 四川宏华石油设备有限公司 | Floating type fan foundation |
| CN114771759A (en) * | 2022-05-12 | 2022-07-22 | 中海石油(中国)有限公司 | Buoyancy eccentric semi-submerged floating type fan foundation suitable for large megawatt unit |
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Address after: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee after: Jinfeng Technology Co.,Ltd. Address before: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee before: XINJIANG GOLDWIND SCIENCE & TECHNOLOGY Co.,Ltd. |
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