CN207985139U - A kind of novel offshore wind power submersible buoyant foundation - Google Patents
A kind of novel offshore wind power submersible buoyant foundation Download PDFInfo
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- CN207985139U CN207985139U CN201820110852.XU CN201820110852U CN207985139U CN 207985139 U CN207985139 U CN 207985139U CN 201820110852 U CN201820110852 U CN 201820110852U CN 207985139 U CN207985139 U CN 207985139U
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- mooring line
- anchoring
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- buoyancy tank
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Abstract
The utility model belongs to offshore wind power foundation technical field, discloses a kind of novel offshore wind power submersible buoyant foundation, is made of floating platform and anchoring system；Floating platform includes the column of upper end connection blower fan tower barrel, and column lower end is fixedly connected with buoyancy tank, connection inclination strut between column and buoyancy tank；Buoyancy tank is internally provided with circumferential inner panel and reserving hole channel；Anchoring system includes multiple anchoring units and multigroup mooring line；Every group of mooring line is connected between the corresponding reserving hole channel and the anchoring unit, and every group of mooring line includes a lineal pool line and an oblique mooring line.The utility model is capable of providing stability floating enough in towage, and when state in place is influenced small by wave load；It realizes tensioning system waterborne, reduces the difficulty of underwater installation mooring line；Anchor foundation provides withdrawal resistance using ballast weight and frictional resistance, and by preloading and inside and outside differential pressure injection sea bed, easy for construction.
Description
Technical field
The utility model belongs to offshore wind power foundation technical field, in particular to a kind of novel offshore wind farm is latent
Formula buoyant foundation, stability is preferable, and construction and installation are convenient, and project cost and installation cost are low.
Background technology
The concept source on floatation type basis refers to that basis is not in direct contact with sea bed, and is led in deep-sea oil gas development platform
It crosses anchor cable or hawser it is connected with seabed, makes Wind turbines that can be moved freely in a certain be relatively fixed in region, such basis
Research and development and demonstration phase are mostly at present, but, with bed type basis compared with difficulty of construction stronger to the adaptability of marine environment
It is smaller, O＆M cost is low, therefore have a good application prospect in terms of developing deep-sea wind-powered electricity generation.
Compared with coastal waters, abyssal environment is more severe, there is a variety of hydrology phenomenons such as ocean current, wave, tide, interior wave with
And burn into washes away, washes in a pan the long-term physical and chemical effects such as sky, the technologies such as integrated to blower foundation, submarine cable, offshore platform undoubtedly propose
More harsh requirement.In view of the factor of technical difficulty and construction cost, fixed basis is no longer applicable in, deep-sea wind power plant
Mainly use buoyant foundation.
The broad form of existing offshore wind farm buoyant foundation has：Spar types, TLP types and semisubmersible-type basis.Spar types basis
Water Plane is small, is influenced by wave load small, is suitable for the deeper marine site of the depth of water, installs mobile inconvenient；TLP type foundation motion performances
Preferably, mooring uses tension tendon, and cost is higher, is limited greatly by the depth of water；Semisubmersible-type basis can transportation by driving towage, but larger waterline
Face makes it be influenced by wave load, and stability is poor.Above-mentioned base form each own difference in terms of stability and economy
The drawbacks of, and three kinds of foundation pattern mooring lines are both needed to install under water, difficulty of construction is larger.
Utility model content
It is to be solved in the utility model to be that offshore wind farm buoyant foundation motor imagination under stormy waves load is larger and underwater
The higher technical problem of work progress complexity cost provides a kind of novel offshore wind power submersible buoyant foundation, the base form
Water Plane is smaller, and stability is good, and construction and installation are convenient, and installation cost is low, and offshore wind farm buoyant foundation can be made preferably to apply
In Practical Project.
In order to solve the above-mentioned technical problem, the utility model is achieved by technical solution below：
A kind of novel offshore wind power submersible buoyant foundation, is made of floating platform and anchoring system；
The floating platform includes the column, buoyancy tank, inclination strut for being hollow-core construction, and the upper end of the column is for connecting
Blower fan tower barrel, the column lower end are fixedly connected with the buoyancy tank, and more circumferential directions are connected between the column and the buoyancy tank
Uniformly distributed inclination strut；The buoyancy tank is provided centrally with the circumferential inner panel being connected with the column；Setting inside the buoyancy tank
There are radial subdivision plate and circumferential subdivision plate, the radial direction subdivision plate and the circumferential subdivision plate that will divide multiple inside the buoyancy tank
Subdivision room, each subdivision room are equipped with the valve system that can carry out aqueous vapor displacement；It is provided with preformed hole on per pass radial direction subdivision plate
Road, the quantity of the reserving hole channel is identical as the inclination strut and is correspondingly connected with simultaneously phase one by one with the inclination strut lower end
Logical, the inclination strut upper end is connected with the column；
The anchoring system includes anchor foundation and multigroup mooring line；The anchor foundation includes multiple anchoring units, phase
It is connected by beam element between adjacent anchoring unit；The mooring line group number, multiple anchoring units quantity with it is described
The quantity of reserving hole channel is identical, and each anchoring unit it is corresponding be arranged each reserving hole channel just under
Side；Each anchoring unit includes anchoring plate body, which is provided with barrel, lower edges setting cylinder
Skirt；Every group of mooring line is connected between the corresponding reserving hole channel and the anchoring unit, and every group of mooring line includes one
Direct line pool line and an oblique mooring line, the lineal pool line are single in the corresponding reserving hole channel of this group of mooring line and the anchoring
Be vertically arranged between member, the oblique mooring line between the corresponding reserving hole channel of this group of mooring line and the anchoring unit by
Setting is inclined outwardly under；The lineal pool line of mooring line described in every group and oblique mooring line lower end are anchored in the same anchoring
Unit, upper end both pass through the reserving hole channel corresponding to the anchoring unit, and the inclination being connected to by the reserving hole channel
Strut is worn to column inside and is anchored in the column.
Preferably, the reserving hole channel is smoothly connected with the inclination strut with radian.
Preferably, the anchoring plate body of each anchoring unit is rectangle, the beam of each anchoring unit
Unit is made of two horizontal cross bars.
Preferably, the group number of the mooring line is 3-8 groups.
Preferably, the angle all same of the oblique mooring line and vertical direction of multigroup mooring line, and the oblique system
The angle for mooring line and vertical direction is 3 °~60 °.
Preferably, the oblique mooring line and the lineal pool line upper end are both provided with buoy ball before anchoring, after anchoring
Each anchor point is equipped with maintenance device.
Preferably, the exposed parts of the oblique mooring line and the lineal pool line are all made of gum sleeve package.
The utility model has the beneficial effects that：
(1) the novel offshore wind power submersible buoyant foundation of the utility model, floating platform by the column of small-waterplane-area and
The buoyancy tank of big Water Plane combines design, it is ensured that basis provides stability floating enough, while wind turbine in towage by big Water Plane buoyancy tank
State buoyancy tank in place is dived beneath the water, and the column of the small line water surface is influenced small by wave load, ensures basic stability.
(2) direct line is moored line and oblique mooring by the novel offshore wind power submersible buoyant foundation of the utility model, anchoring system
Knot closes design, provides preferable heaving and rotating property by direct line pool line, skewed mooring line provides greater level to about
Beam force so that basis is small in the motor imagination of all directions, and stability is good；Direct line pool line and oblique mooring line upper end are anchored in column,
It realizes tensioning system waterborne, reduces the difficulty of underwater installation mooring line, it is easy for construction；Direct line pool line and oblique mooring line are twisted using steel
Wire material, good economy performance.
(3) anchor foundation of the novel offshore wind power submersible buoyant foundation of the utility model, anchoring system utilizes ballast
The frictional resistance that weight and skirtboard provide provides withdrawal resistance, and for lineal pool line and the positioning of oblique mooring line, anchor foundation, which is top, to be filled
The structure of sand ballast, lower bands skirtboard, larger Water Plane make its can towage to operation waters, and preloading and interior external pressure can be passed through
Poor injection sea bed, it is easy for construction.
Description of the drawings
Fig. 1 is the dimensional structure diagram of novel offshore wind power submersible buoyant foundation provided by the utility model；
Fig. 2 is the mooring line distribution schematic diagram of novel offshore wind power submersible buoyant foundation provided by the utility model；
Fig. 3 is the front view of novel offshore wind power submersible buoyant foundation provided by the utility model；
Fig. 4 is the vertical view of novel offshore wind power submersible buoyant foundation provided by the utility model.
In figure：1, column, 2, tilt strut, 3, buoyancy tank, 4, lineal pool line, 5, oblique mooring line, 6, anchoring unit, 7, reserved
Duct, 8, radial subdivision plate, 9, circumferential subdivision plate, 10, circumferential inner panel, 11, beam element.
Specific implementation mode
For that can further appreciate that the invention content, feature and effect of the utility model, the following examples are hereby given, and coordinates
Detailed description are as follows for attached drawing：
Show as shown in Figure 1 to Figure 4, present embodiment discloses a kind of novel offshore wind power submersible buoyant foundation, by floating platform and
Anchoring system forms.
Floating platform includes column 1, tilts strut 2, buoyancy tank 3, and 1 upper end of column is connected by flange with blower fan tower barrel, is stood
1 lower end of column is fixedly connected with buoyancy tank 3, and more circumferentially uniformly distributed inclination struts 2 are provided between column 1 and buoyancy tank 3.In view of sea
The cabin of upper fan and the weight of blade it is larger and more than the water surface 80~100m, to make wind turbine normal power generation, it is necessary to assure base
Stability of the plinth under stormy waves synergy and the ability for resisting storm load.Column 1 selects steel construction, concrete knot with buoyancy tank 3
The material of structure or other lighter weights can carry larger wind-powered electricity generation load.3 phase knot of small-waterplane-area column 1 and big Water Plane buoyancy tank
The design of conjunction provides stability floating enough by big Water Plane buoyancy tank 3 and realizes floating platform-tower-wind turbine entirety transportation by driving towage, installation
Convenient transportation；And buoyancy tank 3 slips into the water surface hereinafter, the column 1 of small-waterplane-area is located on the water surface, to reduce wave lotus when state in place
The influence of load.It tilts that strut 2 is inclined is connected between column 1 and buoyancy tank 3, reinforces the connection knot of column 1 and buoyancy tank 3 with this
Structure, and provide horizontal and vertical bearing capacity for top wind-powered electricity generation structure.
Column 1 is the cylinder-like structure with cavity, and a diameter of 8m is highly 20m, wall thickness 50mm.
Buoyancy tank 3 is the flat cylindrical-shaped structure with cavity, and a diameter of 33m is highly 10m, wall thickness 15mm.Buoyancy tank
3 are provided centrally with the circumferential inner panel 10 of a diameter of 8m, and circumferential inner panel 10 is connected with column 1, diameter and 1 diameter phase of column
Together.Buoyancy tank 3 is internally provided with the radial subdivision plates 8 of four radial equipartitions circumferential subdivision plate 9, radial subdivision plate 8 and ring with together with
It will be divided into each four subdivision rooms of inside and outside two circle inside buoyancy tank 3 to subdivision plate 9, each subdivision room is equipped with and can carry out aqueous vapor and set
The valve system changed, buoyancy tank 3 can ensure basic towage stability by each subdivision room plus Water Ballast center-of-gravity regulating position.Per pass
There are one reserving hole channel 7, four reserving hole channels 7 tilt 2 phases of strut with four respectively for same position setting on radial subdivision plate 8
Connection.Reserving hole channel 7 is smoothly connected with strut 2 is tilted with certain radian, and stress concentration when mooring line tensioning stress is avoided to lead
It causes mooring line impaired, influences system worked well.Reserving hole channel 7 can prevent mooring line from being contacted with water, ensure mooring anchor point not
It is damaged.
Inclination strut 2 is hollow long column shape structure, a diameter of 2m.Four tilt the circumferentially uniformly distributed setting of strut 2 vertical
Around column 1, the upper end of every inclination strut 2 is fixedly connected on 1 sidewall upper of column and is connected with column 1, and lower end, which is fixed, to be connected
It is connected to the outer position in 3 upper surface of buoyancy tank and is connected with reserving hole channel 7.
Anchoring system includes anchor foundation and four groups of mooring lines.
Anchor foundation includes four anchoring units 6 being separately positioned on immediately below four reserving hole channels 7, adjacent anchoring unit
It is connected by beam element 11 between 6.Each anchoring unit 6 includes the square anchoring plate body of length of side 12.5m, on the anchoring plate body
Portion edge is provided with the square barrel that height is 2m, lower edges are provided with the square skirtboard that height is 5m.Adjacent anchoring
The centre-to-centre spacing of unit 6 is 16m, and the beam element 11 connected between anchoring unit 6 is made of the horizontal cross bar of two a diameter of 1m.Often
A anchoring unit 6 is used to provide the anchor point of one group of mooring line (including a lineal pool line 4 and an oblique mooring line 5) lower end,
It, which anchors the superstructure that plate body is constituted with barrel, can fill sand ballast, and skirtboard passes through ballast weight and inside and outside differential pressure injection sea bed.Anchor
Gu basis can be provided by preloading and inside and outside differential pressure injection sea bed, anchor foundation using the frictional resistance that ballast weight and skirtboard provide
Withdrawal resistance is that four groups of mooring lines position.
Four groups of mooring lines be connected to buoyancy tank 3 four reserving hole channels 7 and anchor foundation four anchoring units 6 it
Between, every group of mooring line includes a lineal pool line 4 and an oblique mooring line 5, and direct line pool line 4 is corresponding reserved in this group of mooring line
It is vertically arranged between duct 7 and anchoring unit 6, oblique mooring line 5 is in the corresponding reserving hole channel 7 of this group of mooring line and anchoring unit 6
Between be from top to bottom inclined outwardly setting (being interior with 3 center position of buoyancy tank, 3 wall direction of buoyancy tank is outer).Four groups of mooring lines
The angle all same of oblique mooring line 5 and vertical direction, in the range of 3 °~60 °.Every group of the lineal of mooring line moors line 4 and oblique mooring
5 lower end of line is anchored in the same anchoring unit 6 of anchor foundation, and upper end both passes through the reserving hole channel corresponding to the anchoring unit 6
7, and the inclination strut 2 being connected to by the reserving hole channel 7 is worn to column 1, and 1 side wall inner surfaces of column are finally anchored in.By
This, four lineal pool lines 4 and four oblique mooring lines 5 form tensioning system waterborne, reduce the difficulty of underwater installation mooring line.It is lineal
Pool line 4 provides good heaving and rotating property, and oblique mooring line 5 provides larger horizontal restraint power, and radiates from bottom to up
Inside design, which is reduced, occupies sea bed area, reduces and seafloor structure collision phenomenon.Direct line pool line 4 and oblique mooring line 5 it is straight
Diameter is 167mm, and steel strand wires, polyester fiber line etc. can be used；Upper end is both provided with buoy ball before anchoring, facilitates it to pass through pre-
Box out 7；Each anchor point after anchoring is equipped with maintenance device.
It is all made of gum sleeve package outside direct line pool line 4 and oblique mooring line 5, avoids its corrosion failure in the seawater.
In this way, anchoring system can effectively control floating platform in heaving, surging, swaying, yawing, rolling, pitching
The movement of six-freedom degree, it is ensured that the offshore wind farm buoyant foundation has smaller motor imagination, good dynamic to show
Power performance thus greatly reduces the design requirement to Wind turbines.
The construction method of above-mentioned novel offshore wind power submersible buoyant foundation, carries out in accordance with the following steps：
(1) first by floating platform and anchoring system respectively in the prefabricated completion in land, by top blower fan tower barrel in floating platform
Upper installation is stablized, and top blower fan tower barrel and floating platform towage are transported to operation marine site, is provided using the buoyancy tank 3 of big Water Plane
Floating stability realizes floating platform-tower-wind turbine entirety transportation by driving towage；Anchoring system towage is transported to operation marine site, directly simultaneously
Mooring line 4 and oblique 5 upper end of mooring line are both provided with buoy ball；
(2) be equipped with top blower fan tower barrel the floating platform and the anchoring system towage is transported to making the sea of retribution respectively
Behind domain, applying ballast makes the anchor foundation in the anchoring system sink, by preloading and inside and outside differential pressure by anchor foundation
Embedded seabed is fixed；
(3) four lineal pool lines 4 and four oblique 5 upper ends of mooring line are sequentially passed through into preformed hole according to buoy ball indicating positions
Road 7 and inclination strut 2, carry out lineal pool line 4 and oblique mooring line 5 the pre- tensioning of certain proportion (10%~50%), with balance
The buoyancy of floating platform makes lineal pool line 4 and oblique mooring line 5 be in tensioning state；
(4) inner ring subdivision room water filling of the valve system replaced by aqueous vapor to buoyancy tank 3, makes to be equipped with top blower fan tower barrel
Floating platform lose part buoyancy, the outer ring subdivision room air of buoyancy tank 3 is supplied to basic certain in sinking watching
Buoyancy ensures the stability of offshore wind farm buoyant foundation；When the floating platform sinks down into designed draft position, direct line pool line 4
Reach preset length with oblique mooring line 5, pre- of remaining proportion (50%~90%) is completed to lineal pool line 4 and oblique mooring line 5
It draws, to balance the buoyancy of floating platform；Direct line pool line 4 and oblique 5 upper end of mooring line are anchored in 1 side wall inner surfaces of column；
(5) water body in 3 inner ring subdivision room of buoyancy tank is discharged by the valve system that aqueous vapor is replaced, ensures that offshore wind farm is floating
Formula basis has certain floating stability；
(6) lineal pool line 4 and oblique mooring line 5 are brought into reserving hole channel 7 and tilts the water body of strut 2 row is inflated by high pressure
Go out, 3 bottom of sealing buoyancy tank, ensures that the second reserving hole channel 7, the first reserving hole channel 8 and inclination strut 2 are in drying regime；
(7) after position, by the center of gravity position for adjusting offshore wind farm buoyant foundation to the outer ring subdivision room water filling of buoyancy tank 3
It sets, ensures offshore wind farm buoyant foundation safe and stable operation.
Although the preferred embodiment of the utility model is described above in conjunction with attached drawing, the utility model is not
It is confined to above-mentioned specific implementation mode, the above mentioned embodiment is only schematical, is not restrictive, ability
The those of ordinary skill in domain is not departing from present inventive concept and scope of the claimed protection under the enlightenment of the utility model
In the case of, the specific transformation of many forms can also be made, these are belonged within the scope of protection of the utility model.
Claims (7)
1. a kind of novel offshore wind power submersible buoyant foundation, which is characterized in that be made of floating platform and anchoring system；
The floating platform includes the column, buoyancy tank, inclination strut for being hollow-core construction, and the upper end of the column is for connecting wind turbine
Tower, the column lower end are fixedly connected with the buoyancy tank, and it is uniformly distributed that more circumferential directions are connected between the column and the buoyancy tank
Inclination strut；The buoyancy tank is provided centrally with the circumferential inner panel being connected with the column；The buoyancy tank is internally provided with diameter
To subdivision plate and circumferential subdivision plate, the radial direction subdivision plate and the circumferential subdivision plate will divide multiple subdivisions inside the buoyancy tank
Room, each subdivision room are equipped with the valve system that can carry out aqueous vapor displacement；It is provided with reserving hole channel on per pass radial direction subdivision plate, institute
The quantity for stating reserving hole channel is identical as the inclination strut and be correspondingly connected with and communicate one by one with the inclination strut lower end, described
Strut upper end is tilted with the column to be connected；
The anchoring system includes anchor foundation and multigroup mooring line；The anchor foundation includes multiple anchoring units, adjacent anchor
Gu being connected by beam element between unit；The group number of the mooring line, the quantity of multiple anchoring units are reserved with described
The quantity in duct is identical, and each the anchoring unit is corresponding is arranged in the underface of each reserving hole channel；Often
A anchoring unit includes anchoring plate body, which is provided with barrel, lower edges setting sheath skirt；Every group
Mooring line is connected between the corresponding reserving hole channel and the anchoring unit, and every group of mooring line includes a lineal pool line
With an oblique mooring line, the lineal pool line erects between the corresponding reserving hole channel of this group of mooring line and the anchoring unit
Straight setting, the oblique mooring line between the corresponding reserving hole channel of this group of mooring line and the anchoring unit from top to bottom to
Outer incline is arranged；The lineal pool line of mooring line described in every group and oblique mooring line lower end are anchored in the same anchoring unit, on
End both passes through the reserving hole channel corresponding to the anchoring unit, and by the inclination strut that the reserving hole channel is connected to wear to
Inside the column and it is anchored in the column.
2. a kind of novel offshore wind power submersible buoyant foundation according to claim 1, which is characterized in that the reserving hole channel
Smoothly connected with radian with the inclination strut.
3. a kind of novel offshore wind power submersible buoyant foundation according to claim 1, which is characterized in that each anchoring
The anchoring plate body of unit is rectangle, and the beam element of each anchoring unit is made of two horizontal cross bars.
4. a kind of novel offshore wind power submersible buoyant foundation according to claim 1, which is characterized in that the mooring line
Group number is 3-8 groups.
5. a kind of novel offshore wind power submersible buoyant foundation according to claim 1, which is characterized in that multigroup mooring
The angle all same of the oblique mooring line and vertical direction of line, and the angle of the oblique mooring line and vertical direction be 3 °~
60°。
6. a kind of novel offshore wind power submersible buoyant foundation according to claim 1, which is characterized in that the oblique mooring line
Buoy ball is both provided with before anchoring with the lineal pool line upper end, each anchor point after anchoring is equipped with maintenance device.
7. a kind of novel offshore wind power submersible buoyant foundation according to claim 1, which is characterized in that the oblique mooring line
It is all made of gum sleeve package with the exposed parts of the lineal pool line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820110852.XU CN207985139U (en) | 2018-01-23 | 2018-01-23 | A kind of novel offshore wind power submersible buoyant foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820110852.XU CN207985139U (en) | 2018-01-23 | 2018-01-23 | A kind of novel offshore wind power submersible buoyant foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207985139U true CN207985139U (en) | 2018-10-19 |
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ID=63820774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820110852.XU Expired - Fee Related CN207985139U (en) | 2018-01-23 | 2018-01-23 | A kind of novel offshore wind power submersible buoyant foundation |
Country Status (1)
| Country | Link |
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| CN (1) | CN207985139U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108248783A (en) * | 2018-01-23 | 2018-07-06 | 天津大学 | A kind of novel offshore wind power submersible buoyant foundation and its construction method |
| CN114044090A (en) * | 2021-12-17 | 2022-02-15 | 中交第一航务工程局有限公司 | Floating type water foundation |
-
2018
- 2018-01-23 CN CN201820110852.XU patent/CN207985139U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108248783A (en) * | 2018-01-23 | 2018-07-06 | 天津大学 | A kind of novel offshore wind power submersible buoyant foundation and its construction method |
| CN114044090A (en) * | 2021-12-17 | 2022-02-15 | 中交第一航务工程局有限公司 | Floating type water foundation |
| CN114044090B (en) * | 2021-12-17 | 2023-06-20 | 中交第一航务工程局有限公司 | Floating type water foundation |
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