CN212223817U - Bottom-sitting type offshore wind power installation platform - Google Patents
Bottom-sitting type offshore wind power installation platform Download PDFInfo
- Publication number
- CN212223817U CN212223817U CN202020752047.4U CN202020752047U CN212223817U CN 212223817 U CN212223817 U CN 212223817U CN 202020752047 U CN202020752047 U CN 202020752047U CN 212223817 U CN212223817 U CN 212223817U
- Authority
- CN
- China
- Prior art keywords
- platform
- ballast water
- deck
- base
- row
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009434 installation Methods 0.000 title claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000005192 partition Methods 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 6
- 239000004576 sand Substances 0.000 description 7
- 238000011161 development Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Images
Landscapes
- Wind Motors (AREA)
Abstract
The utility model discloses a bottom-sitting type offshore wind power installation platform, which comprises a platform body, a hoisting device and an operation room, and also comprises a soft body row laying device; the platform body comprises a platform deck, a platform base and a plurality of support columns connected between the platform deck and the platform base; the interior of the platform base is divided into a plurality of independent ballast water tanks; the hoisting device is arranged on the platform deck; the soft row laying device is arranged in the middle of one side of the platform deck; the soft row laying device is provided with a rear row roller driven by a motor along the longitudinal direction of a platform deck, and a front row roller which is parallel to the rear row roller and is positioned right ahead of the rear row roller is arranged at the broadside edge close to the platform deck, and the front row roller is connected with the rear row roller through an annular transmission belt; the operator's cab is located forward of the other side of the platform deck. The utility model discloses a solve the problem that the ground was hollowed out, the platform slided easily appear in mounting platform sea bed surface when sitting end operation.
Description
Technical Field
The utility model relates to a marine wind power, concretely relates to sit end formula marine wind power mounting platform.
Background
With the rapid development of economy in China, offshore wind power becomes an important development direction for new energy development in recent years by virtue of the characteristics of abundant wind power resources, high electricity generation utilization hours, no land occupation, suitability for large-scale development and the like. At the initial stage of the construction of the offshore wind farm, the offshore wind turbine is mainly installed by matching a plurality of ships, so that the efficiency is low, the cost is high, the safety is poor, and the requirement on the operating environment is high. With the development of the offshore wind power industry, the requirements of large-scale development and construction of European deep water wind farms are met, in recent years, self-propelled self-elevating type mounting ships which are specially suitable for mounting offshore wind turbines and integrated with the functions of loading, transporting and mounting are developed, the self-propelled self-elevating type mounting ships are generally suitable for water depths of 20-80 meters, structural equipment is complex and high in manufacturing cost, the shallow sea water depth of the beach of China is 5-30 meters, the geological conditions of the wind farms are mostly silt and silt, loose soil and serious in layering, the bearing capacity is low, piles are difficult to plug and pull, and the self-propelled self-elevating type mounting ships.
The bottom-sitting type installation is a common form of offshore wind power installation engineering, and fan installation operation is carried out by actively sinking the bottom-sitting type offshore wind power installation platform to be slowly contacted with the mud surface of the seabed and utilizing the supporting effect of the seabed. The bottom-sitting type installation can effectively reduce the influence of weather and sea condition conditions on the operation of the crane, and has the advantages of short operation period and low installation cost.
Deep saturated soft soil is widely distributed in coastal sea areas of China, and when a bottom-sitting type platform operates under the seabed condition, accidents such as hollowing, slipping and the like are easy to occur, and the bottom-sitting stability of the platform during operation needs to be fully considered. The main reasons influencing the bottom-setting state of the installation platform include seabed terrain, ocean current migration, ocean wave erosion, seabed matrix liquefaction or softening and the like, and once the installation platform is unstable, the instability is often not caused by a single factor but is a result of comprehensive action of multiple reasons.
The sand rib soft body row is one kind of compound geotechnological cloth, makes up reinforced band and the sand rib cover of equipartition range on arranging, penetrates geotechnological fabric long tube bag in the sand rib cover, fills sand material in the long tube bag and forms the sand rib, is often used for scour protection engineering such as dykes and dams, river bank, riverbed bottom and beach face, still has bed course effect and antiskid.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect and provide a sit end formula marine wind power mounting platform, it has solved sit end formula marine wind power mounting platform and has easily appeared the ground when sitting end operation and draw empty, the problem that the platform slided, improves the end stability of sitting of mounting platform during the operation, and then can ensure operation safety, improves the installation accuracy and the efficiency of construction of marine fan.
The purpose of the utility model is realized like this: a bottom-sitting type offshore wind power installation platform comprises a platform body, a hoisting device, a soft body row laying device and an operation room; wherein,
the platform body comprises a platform deck, a platform base and a plurality of support columns connected between the platform deck and the platform base; the platform base is of a box body structure and is divided into a plurality of independent ballast water tanks through a plurality of longitudinal partition plates and transverse partition plates;
the hoisting device is mounted on the platform deck; the base of the hoisting device is fixed at the corner part of one side end of a platform deck, and a rotary column is installed on the base; the support of the hoisting device is fixed on the platform deck and arranged diagonally to the base, and a hoisting mechanism is installed on the support; the rear end of a cantilever of the hoisting device is hinged with the top of the rotary column, and the middle part of the cantilever of the hoisting device is connected with the top of the hoisting mechanism;
the soft body row laying device is arranged in the middle of one side of the platform deck; the soft row laying device is provided with a rear row roller driven by a motor along the longitudinal direction of a platform deck, and a front row roller which is parallel to the rear row roller and is positioned right ahead of the rear row roller is arranged at the broadside edge close to the platform deck, and the front row roller is connected with the rear row roller through an annular transmission belt;
the operator cab is provided forward of the other side of the platform deck.
Foretell formula marine wind power mounting platform sits at the bottom, wherein, the front portion of platform base sets up one row of preceding ballast water tank, sets up a left ballast water tank at the left side middle part of platform base, sets up two rows of middle part ballast water tanks at the middle part of platform base, sets up well pump house between two rows of middle part ballast water tanks, sets up a right ballast water tank at the right side middle part of platform base, the rear portion of platform base sets up one row of back ballast water tank, set up left pump house between left side ballast water tank and two rows of middle part ballast water tanks, set up right pump house between right side ballast water tank and two rows of middle part ballast water tanks.
The utility model discloses a sit end formula offshore wind power mounting platform has following characteristics:
the plurality of ballast water tanks capable of filling ballast water inwards are arranged in the platform base of the installation platform, so that sinking and setting before offshore wind power installation operation and floating after the operation are completed are realized; the hoisting system is arranged on the mounting platform, and the mounting platform is used for hoisting and mounting fan equipment after being seated; the installation platform is provided with the soft row laying device, so that the soft row can be laid on the seabed surface at the bottom-sitting position of the installation platform in advance, the bearing capacity of the seabed foundation is increased by utilizing the cushion function of the soft row, the anti-sliding capacity of the seabed surface at the bottom-sitting position is improved, the seabed foundation below the soft row can be prevented from being washed and hollowed, the bottom-sitting stability of the installation platform during operation is improved, the operation safety can be further ensured, and the installation precision and the construction efficiency of the offshore wind turbine are improved.
Drawings
Fig. 1 is a front view of the bottom-seated offshore wind power installation platform of the present invention;
FIG. 2 is a top view of the submersible offshore wind power installation platform of the present invention;
fig. 3 is an installation schematic view of the soft body row laying device of the bottom-sitting offshore wind power installation platform of the present invention;
fig. 4 is a layout view of ballast water tanks in the platform base of the bottom-seated offshore wind power installation platform of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 to 4, the bottom-seated offshore wind power installation platform of the present invention includes a platform body 1, a hoisting device 3, a soft row laying device 2 and an operation room 4.
The platform body 1 comprises a platform base 11, a platform deck 13 and a plurality of support columns 12 connected between the platform deck 13 and the platform base 11; wherein,
the platform base 11 is of a box body structure and is divided into a plurality of independent ballast water tanks through a plurality of longitudinal partition plates and transverse partition plates; the longitudinal partition plate and the transverse partition plate are connected between the upper bottom plate and the lower bottom plate of the platform base 11 and play a role of reinforcing rib plates;
the front part of the platform base 11 is provided with a row of six front ballast water tanks 111, the middle part of the left side of the platform base 11 is provided with a left ballast water tank 112, the middle part of the platform base 11 is provided with two rows of middle ballast water tanks 13, each row of middle ballast water tank 113 is composed of three middle ballast water tanks 113, a middle pump chamber 114 is arranged between the two rows of middle ballast water tanks 113, the middle part of the right side of the platform base 11 is provided with a right ballast water tank 115, the rear part of the platform base 11 is provided with a row of six rear ballast water tanks 116, a left pump chamber 117 is arranged between the left ballast water tank 112 and the two rows of middle ballast water tanks 113, and a right pump chamber 118 is arranged between the right ballast water tank 115 and the two rows of middle ballast water tanks 112.
The hoisting device 3 is mounted on the platform deck 13; a base 31 of the hoisting device 3 is fixed at one side end corner of the platform deck 13, and a rotary column is arranged on the base 31; a support 32 of the hoisting device 3 is fixed on the platform deck 13 and is arranged diagonally to the base 31, and a hoisting mechanism is arranged on the support 32; the rear end of the cantilever 33 of the hoisting device 3 is hinged with the top of the slewing column, and the middle part of the cantilever 33 of the hoisting device 3 is connected with the top of the hoisting mechanism.
The soft row laying device 2 is arranged in the middle of one side of the platform deck 13; the soft body row laying device is provided with a rear row roller 22 driven by a motor along the longitudinal direction of the platform deck 13, and a front row roller 21 which is parallel to the rear row roller 22 and is positioned right in front of the rear row roller 22 is arranged close to the broadside edge of the platform deck 13, and the front row roller 21 and the rear row roller 22 are connected through an annular transmission belt 23.
The operator cab 4 is provided in front of the other side of the platform deck 13.
In order to ensure the strength of the structure of the bottom-sitting type offshore wind power installation platform, the platform deck 13, the platform bottom 11, the longitudinal partition plates and the transverse partition plates are all made of marine steel plates.
Adopt the utility model discloses a sit end formula offshore wind power mounting platform and include following step when carrying out offshore wind power installation operation:
calculating the area of a soft row to be laid on the surface of the sea bed of the selected fan mounting point of the bottom-sitting type offshore wind power mounting platform according to the following formula;
the vertical force during foundation damage is calculated by formula 1:
q ═ Cu × Nc × a' × Kc formula 1
In the formula 1, Q is the maximum vertical force KN when the foundation is damaged; cu is the non-drainage shear strength KPa of the soil; nc is a dimensionless constant, taken here to be 5.14; a' is the effective area m of the foundation determined according to the eccentricity of the load2(ii) a Kc is a correction coefficient considering load inclination, basic shape, embedding depth, substrate inclination and soil surface inclination;
and then calculating the laying area of the sand body row by the formula 2:
a ═ a' × G ÷ Q formula 2
In formula 2, A is the laying area m of the soft mattress2(ii) a G is the floating weight KN under the most unfavorable working condition when the platform is the lowest; a' is the effective area m of the foundation determined according to the eccentricity of the load2(ii) a Q is the maximum vertical force KN when the foundation is damaged;
step two, dragging the bottom-sitting type offshore wind power installation platform to a fan installation point by using a tug boat, then hoisting a first section of soft row processed in advance on a conveyor belt 23 of a soft row laying device on a platform deck 3, and temporarily fixing the rear end of the first section of soft row with the conveyor belt 23; the soft mattress is a sand rib soft mattress;
step three, starting a transmission system of the soft mattress laying device 2, and transmitting the front end of the first section of soft mattress to the side of the platform deck 13;
before the rear end of the first section of the soft mattress leaves the conveyor belt 23, suspending a transmission system of the soft mattress laying device, hanging a second section of the soft mattress, unfastening the fixed end of the first section of the soft mattress from the conveyor belt 23, and linking the fixed end of the first section of the soft mattress with the front end of the second section of the soft mattress;
step four, temporarily fixing the rear end of the second section of soft mattress on the conveyor belt 23, restarting the transmission system, transmitting the front end of the second section of soft mattress to the side of the platform deck 3 and laying the front end of the second section of soft mattress on the surface of the sea bed;
step five, repeating the step two to the step four, laying a subsequent section of soft body row, moving the bottom-sitting type offshore wind power installation platform under the assistance of a tug after a certain area is laid, and repeating the step two to the step four until the laying area of the soft body row on the selected sea bed surface reaches the area A calculated in the step one;
moving the bottom-sitting type offshore wind power installation platform to a bottom-sitting position and positioning under the assistance of a tug according to the installation requirement of a fan, injecting ballast water into different ballast water tanks according to the gravity center of the bottom-sitting type offshore wind power installation platform in a set sequence, enabling the bottom-sitting type offshore wind power installation platform to sink stably, closely monitoring the floating state of the bottom-sitting type offshore wind power installation platform in the sinking process, adjusting the water injection sequence and the ballast water amount of the ballast water tanks at any time, enabling the bottom-sitting type offshore wind power installation platform to be kept in a stable state all the time until the bottom-sitting type offshore wind power installation platform sinks to the bottom-sitting position and sits on a soft row, completing bottom sitting, and adjusting the support columns 2 to enable the platform deck 3 to be exposed out of the water;
and step seven, starting the hoisting device 3, and hoisting the fan by using the hoisting device 3.
Step eight, after the fan is installed, the hoisting device 3 is folded;
discharging ballast water in the ballast water tank to enable the bottom-sitting type offshore wind power installation platform to float under the action of buoyancy;
and step ten, the bottom-sitting type offshore wind power installation platform moves to the next selected fan installation point with the assistance of the tug, the step one to the step nine are repeated, and the next offshore fan is installed.
The utility model discloses a sit end formula offshore wind power mounting platform, through set up a plurality of ballast water tanks that sink when filling water inwards or come-up when the drainage in the platform base of mounting platform to realize the sinking before the offshore wind power installation operation sits the end and the floating after the operation is accomplished; the hoisting system is arranged on the mounting platform, and the mounting platform is used for hoisting and mounting fan equipment after being seated; the installation platform is provided with the soft body row laying device, so that the soft body rows can be laid on the seabed surface at the bottom-sitting position of the installation platform in advance, the bearing capacity of the seabed foundation is increased by utilizing the cushion function of the soft body rows, the anti-sliding capacity of the seabed surface at the bottom-sitting position is improved, the seabed foundation below the soft body rows can be prevented from being washed and hollowed, and the bottom-sitting stability of the installation platform during operation is improved.
The above embodiments are provided only for the purpose of illustration, not for the limitation of the present invention, and those skilled in the relevant art can make various changes or modifications without departing from the spirit and scope of the present invention, therefore, all equivalent technical solutions should also belong to the scope of the present invention, and should be defined by the claims.
Claims (2)
1. A bottom-sitting type offshore wind power installation platform comprises a platform body, a hoisting device and an operation room; the installation platform is characterized by further comprising a soft mattress laying device;
the platform body comprises a platform deck, a platform base and a plurality of support columns connected between the platform deck and the platform base;
the platform base is of a box body structure and is divided into a plurality of independent ballast water tanks through a plurality of longitudinal partition plates and transverse partition plates;
the hoisting device is mounted on the platform deck; the base of the hoisting device is fixed at the corner part of one side end of a platform deck, and a rotary column is installed on the base; the support of the hoisting device is fixed on the platform deck and arranged diagonally to the base, and a hoisting mechanism is installed on the support; the rear end of a cantilever of the hoisting device is hinged with the top of the rotary column, and the middle part of the cantilever of the hoisting device is connected with the top of the hoisting mechanism;
the soft body row laying device is arranged in the middle of one side of the platform deck; the soft row laying device is provided with a rear row roller driven by a motor along the longitudinal direction of a platform deck, and a front row roller which is parallel to the rear row roller and is positioned right ahead of the rear row roller is arranged at the broadside edge close to the platform deck, and the front row roller is connected with the rear row roller through an annular transmission belt;
the operator cab is provided forward of the other side of the platform deck.
2. The bottom-supported offshore wind power installation platform according to claim 1, wherein a row of front ballast water tanks are arranged at the front part of the platform base, a left ballast water tank is arranged at the middle part of the left side of the platform base, two rows of middle ballast water tanks are arranged at the middle part of the platform base, a middle pump chamber is arranged between the two rows of middle ballast water tanks, a right ballast water tank is arranged at the middle part of the right side of the platform base, a row of rear ballast water tanks are arranged at the rear part of the platform base, a left pump chamber is arranged between the left ballast water tank and the two rows of middle ballast water tanks, and a right pump chamber is arranged between the right ballast water tank and the two rows of middle ballast water tanks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020752047.4U CN212223817U (en) | 2020-05-08 | 2020-05-08 | Bottom-sitting type offshore wind power installation platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020752047.4U CN212223817U (en) | 2020-05-08 | 2020-05-08 | Bottom-sitting type offshore wind power installation platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212223817U true CN212223817U (en) | 2020-12-25 |
Family
ID=73926233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020752047.4U Active CN212223817U (en) | 2020-05-08 | 2020-05-08 | Bottom-sitting type offshore wind power installation platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212223817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441327A (en) * | 2020-05-08 | 2020-07-24 | 中交第三航务工程局有限公司 | Bottom-sitting type offshore wind power installation platform and offshore wind power installation method |
-
2020
- 2020-05-08 CN CN202020752047.4U patent/CN212223817U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441327A (en) * | 2020-05-08 | 2020-07-24 | 中交第三航务工程局有限公司 | Bottom-sitting type offshore wind power installation platform and offshore wind power installation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107542101B (en) | Construction method of offshore four-buoy-buoyancy tank combined foundation structure | |
| CN111441327A (en) | Bottom-sitting type offshore wind power installation platform and offshore wind power installation method | |
| CN109056684A (en) | The split type jacket structure of Large marine platform and its installation method of the installation of support method are floated suitable for shallow sea water | |
| CN107806108A (en) | Three floating drum buoyancy tank foundation structures and its construction method on a kind of combined type sea | |
| CN101837929B (en) | Operation method for lifting fan for barge in shoal area | |
| CN207644586U (en) | Sit bottom jack up wind-powered electricity generation pile driving barge | |
| CN209178967U (en) | The split type jacket structure of Large marine platform of support method installation is floated suitable for shallow sea water | |
| CN107653895A (en) | Six floating drum buoyancy tank foundation structures and its construction method on a kind of combined type sea | |
| US11891768B2 (en) | Auxiliary structure for floating and sinking a whole offshore wind turbine with suction bucket foundation(s) | |
| CN107630461A (en) | Four floating drum buoyancy tank foundation structures and its construction method on a kind of combined type sea | |
| CN113089714A (en) | Offshore wind power single-pile foundation anti-scouring device and construction method thereof | |
| CN113266034A (en) | Scouring protection reinforcing structure and method for offshore wind power single-pile foundation | |
| CN212223817U (en) | Bottom-sitting type offshore wind power installation platform | |
| CN109267555A (en) | The Large marine platform integral type jacket structure and installation method of the installation of support method are floated suitable for deep water sea area | |
| KR20230026975A (en) | Offshore wind farm structure installed by jacking method and its construction method | |
| CN216839223U (en) | Compound energy dissipation scour prevention device of marine wind-power single pile foundation | |
| CN106638659A (en) | Towing truss-gravity type combined offshore wind turbine foundation structure and construction method thereof | |
| CN112302056A (en) | Sand filling bag for protecting foundation of deep sea fan against scouring and ballasting | |
| CN207987950U (en) | Four floating drum buoyancy tank foundation structures on a kind of combined type sea | |
| CN201914420U (en) | Semisubmersible transferring and delivery platform | |
| CN110758662A (en) | Movable free-rising and sinking storm platform | |
| CN208136938U (en) | A kind of marine four floating drums-buoyancy tank combined type foundation structure | |
| CN214883833U (en) | Whole quick-witted group of offshore wind power suction bucket basis floats and supplementary structure of sinking | |
| CN113062349B (en) | Upper floating and auxiliary sinking structure of offshore wind power suction barrel foundation | |
| CN211032946U (en) | Movable free-rising and sinking storm platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |