CN109185071B - Offshore wind power deep water one-step installation device and method - Google Patents
Offshore wind power deep water one-step installation device and method Download PDFInfo
- Publication number
- CN109185071B CN109185071B CN201811133780.1A CN201811133780A CN109185071B CN 109185071 B CN109185071 B CN 109185071B CN 201811133780 A CN201811133780 A CN 201811133780A CN 109185071 B CN109185071 B CN 109185071B
- Authority
- CN
- China
- Prior art keywords
- foundation
- cylindrical foundation
- installation
- barrel
- tower
- 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
Images
Classifications
-
- 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
-
- 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
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
-
- 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
- F03D13/22—Foundations specially adapted for wind motors
-
- 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
-
- 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
Abstract
The invention discloses a marine wind power deep water one-step installation device and a method, wherein the device comprises an installation ship, an auxiliary sinking frame, a supporting truss, a centralizing guide frame, a tower barrel, fan blades, a machine head, a guy rope and a barrel-shaped foundation, a rectangular boss is arranged at the rear part of a ship body of the installation ship, a U-shaped groove is arranged on the rectangular boss, and four top corners of the rectangular boss are respectively integrally provided with a vertical supporting truss; the auxiliary sinking frame consists of a U-shaped underframe and vertical guide pipes, a through hole is formed in the outer side of each support truss on the rectangular boss, and the guide pipes movably connected with the support trusses are arranged in the through holes in a penetrating manner; a cylindrical foundation is arranged between the U-shaped underframe and the rectangular boss, a tower cylinder is arranged in the middle of the cylindrical foundation, and an inclined strut is arranged between the tower cylinder and the cylindrical foundation; one end of the centralizing guide frame is connected with the supporting truss, and the other end of the centralizing guide frame is connected with the tower through the anchor ear and is used for assisting in supporting and restraining the tower in the debugging, transporting and installing processes.
Description
Technical Field
The invention belongs to the technical field of offshore wind power foundations, and particularly relates to a one-step offshore wind power deep water installation device and method.
Background
Compared with the land wind farm construction, the offshore wind farm construction is faced with more complex and severe offshore environments, the offshore construction difficulty is high, the operation window period is short, and therefore the cost and the construction period of offshore wind power development are greatly increased. The foundation structure in the development of offshore wind power is mainly divided into a fixed supporting structure and a floating supporting structure, and the current wind power development is mainly concentrated in 0-50m deep water sea areas and mainly adopts the fixed supporting structure. The installation of the fixed supporting structure generally adopts stepwise installation, the offshore construction of the foundation is firstly carried out, and then the installation of the tower barrel, the machine head and the fan blades is carried out. The offshore wind power support structure is prefabricated on land, floating in the whole machine and installed in one step, which is a development trend of offshore wind power, and the technology is researched in a plurality of countries.
With the development of offshore wind power towards deeper sea, the one-step installation technology must adapt to severe construction conditions such as wind, wave and current in the deeper sea, solves the problems of instability, overturning and the like in the one-step deep water sinking process of the barrel-type foundation complete machine through technical innovation, controls the sinking speed and the attitude, and ensures the safety and various indexes of the offshore complete machine installation process to meet the requirements of a fan.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a one-step installation device and method for the offshore wind power deep water, aiming at the stability control problem existing in the process of the integrated deep water installation of the offshore wind power foundation and the complete machine.
The invention aims at realizing the following technical scheme:
the marine wind power deep water one-step installation device comprises an installation ship, an auxiliary sinking frame, a supporting truss, a righting guide frame, a tower barrel, fan blades, a machine head, a guy rope and a barrel-shaped foundation, wherein a rectangular boss is arranged at the rear part of the hull of the installation ship, a U-shaped groove is formed in the rectangular boss, and four top corners of the rectangular boss are respectively and integrally provided with a vertical supporting truss; the auxiliary sinking frame is composed of a U-shaped base frame and vertical guide pipes, through holes are formed in the outer side of each supporting truss on the rectangular boss, the guide pipes movably connected with the supporting trusses are arranged in the through holes in a penetrating mode, and the bottom ends of the guide pipes are located below the rectangular boss and fixedly connected with the U-shaped base frame; the U-shaped underframe and the rectangular boss are provided with the cylindrical foundation through the U-shaped groove and the inhaul cable, the tower barrel is arranged in the middle of the cylindrical foundation, a diagonal bracing for reinforcement is arranged between the tower barrel and the cylindrical foundation, the machine head is arranged at the top end of the tower barrel, and the shaft of the machine head is connected with the fan blades; one end of the centralizing guide frame is connected with the supporting truss, and the other end of the centralizing guide frame is connected with the tower barrel through the anchor ear and is used for achieving the functions of auxiliary support and constraint on the tower barrel in the processes of debugging, transportation and installation.
Further, the inhaul cable comprises a vertical inhaul cable and a transverse inhaul cable, and the auxiliary sinking frame is flexibly connected with the cylindrical foundation through the transverse inhaul cable; the vertical inhaul cable flexibly connects the cylindrical foundation with the installation ship.
Further, in the transportation process, the bottom of the barrel foundation and the bottom of the installation ship are flush, so that the stress of the barrel foundation in the transportation process is reduced, and the barrel skirt at the bottom of the barrel foundation is prevented from being damaged.
Furthermore, the bottom of the cylindrical foundation is open, and the inside of the cylindrical foundation is a cavity structure of a sub-cabin or a non-sub-cabin.
The installation method of the offshore wind power deep water one-step installation device comprises the following steps of:
(1) The cylindrical foundation is prefabricated on land, and the installation and the debugging of the tower cylinder, the machine head and the fan blades are carried out;
(2) After the installation and debugging of the cylindrical foundation, the tower cylinder, the machine head and the fan blades are finished, the cylindrical foundation, the tower cylinder, the machine head and the fan blades are integrally floated by pumping air into the cylindrical foundation, are butted with U-shaped grooves of an installation ship, and are adjusted to centralize the guide frame and the anchor ear to tightly hold the tower cylinder; continuously pumping air into the cylindrical foundation to tightly prop the top of the cylindrical foundation against the installation vessel, and flexibly connecting the auxiliary sinking frame with the cylindrical foundation by using a transverse inhaul cable; the cylindrical foundation is flexibly connected with the installation ship by a vertical stay rope;
(3) The levelness of the cylindrical foundation and the connection performance of the cylindrical foundation and the installation vessel are adjusted through the internal cabin pressure of the cylindrical foundation and the auxiliary sinking frame, the transverse stay rope and the vertical stay rope;
(4) The installation ship is in floating motion with the cylindrical foundation, the tower cylinder, the machine head and the fan blades integrally, the cylindrical foundation is tightly connected with the installation ship and the auxiliary sinking frame in the floating motion process, and the environmental load in the floating motion process is resisted through the floating stability of the ship body and the ship body;
(5) And the installation vessel, the barrel foundation, the tower barrel, the machine head and the fan blades are integrally floating to a designated installation site and then are installed in a deep water sinking manner. The deep water sinking installation steps are as follows:
A. loosening the anchor ear, and discharging the gas in the barrel to ensure that the gravity of the whole barrel foundation, the tower barrel, the machine head and the fan blade is larger than the buoyancy, and the vertical stay rope is tensioned to bear the gravity and buoyancy difference of the whole barrel foundation, the tower barrel, the machine head and the fan blade; before mud is added to the bottom of the cylindrical foundation, the air pressure in the cylindrical foundation cabin is regulated at any time in the whole sinking process, so that the gravity of the whole cylindrical foundation, the tower, the machine head and the fan blades is ensured to be larger than the borne buoyancy, and the difference between the two is kept basically unchanged;
B. slowly loosening the vertical inhaul cable, tensioning and locking the transverse inhaul cable after the cylindrical foundation top cover is flush with the U-shaped underframe of the auxiliary sinking frame; synchronously lowering the auxiliary sinking frame and the vertical inhaul cable, synchronously sinking the auxiliary sinking frame and the cylindrical foundation, and stopping sinking the auxiliary sinking frame and the vertical inhaul cable downwards when the cylindrical foundation is about 0.5-1 m away from the seabed surface;
C. loosening the transverse inhaul cable, continuously loosening the vertical inhaul cable, and enabling the cylindrical foundation to enter mud by means of the difference of dead weight and buoyancy of the cylindrical foundation and the integral structure of the tower, the machine head and the fan blades; slowly exhausting the gas in the barrel-type foundation cabin and loosening the vertical stay rope until the internal gas pressure of the barrel-type foundation is consistent with the external pressure; releasing the vertical stay rope, removing the installation ship, and withdrawing the auxiliary sinking frame;
D. and (3) extracting gas or water from the cylindrical foundation, vacuumizing and pressing down until the top cover of the cylindrical foundation is in mud, and completing sinking installation and returning the installation ship.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. the device and the method realize the controllable and stable sinking installation of the barrel-type foundation and the whole blower in the deep water area, and through the measures of assisting the synchronous sinking of the sinking frame, flexible connection of the inhaul cable and the like, the stability of the barrel-type foundation in the sinking process is improved through the connection and interaction of the barrel-type foundation and the ship body, namely the capability of resisting the environmental load of wind and wave in the sinking process of the barrel-type foundation is enhanced, the stability and the safety of the barrel-type foundation and the whole blower in the deep water are greatly improved, and the application range of floating transportation and one-step installation of the barrel-type foundation is enlarged.
2. The invention solves the problem of one-step sinking posture control of the offshore wind power cylindrical foundation complete machine under the severe wind and wave current environmental load of a deeper sea area, and the installation device has the advantages of simple integral structure, convenient construction and manpower and material resource conservation.
Drawings
FIG. 1 is a schematic perspective view of the whole device of the present invention;
FIG. 2 is a schematic view of the connection of the righting guide frame to the barrel foundation in the apparatus of the present invention;
FIG. 3 is a schematic side elevational view of the entire apparatus of the present invention;
FIG. 4 is a schematic top view of the guide frame and the barrel foundation of the apparatus of the present invention;
FIG. 5 is a schematic view of the process of the apparatus of the present invention in a deep water submerged installation;
in the figure: 1. installing a ship; 2-1, a U-shaped underframe; 2-2 guide tubes; 3. a support truss; 4. centralizing the guide frame; 5. a hoop; 6. a tower; 7. a fan blade; 8. a machine head; 9-1, a transverse inhaul cable; 9-2 vertical inhaul cables; 10. a barrel-type foundation; 11. and (5) diagonal bracing.
Detailed Description
For further understanding of the invention, its features and effects, reference should be made to the following examples which are illustrated in the accompanying drawings and are to be construed as being illustrative only:
as shown in fig. 1 to 4, the marine wind power deep water one-step installation device comprises an installation ship 1, an auxiliary sinking frame, a supporting truss 3, a righting guide frame 4, a hoop 5, a tower barrel 6, a fan blade 7, a machine head 8, a guy rope, a barrel foundation 10 and an inclined strut 11, wherein a rectangular boss is arranged at the rear part of a ship body of the installation ship 1, a U-shaped groove is formed in the rectangular boss and is mainly used for butting with the barrel foundation, so that the bottom of the barrel foundation is flush with the bottom of the ship body, the stress and the resistance of the barrel foundation are reduced in the transportation process, the barrel skirt at the bottom of the barrel foundation is protected, and the barrel skirt is prevented from being damaged in the floating process.
The four top corners of the rectangular boss are respectively welded with a vertical supporting truss 3 integrally; the supporting truss 3 is formed by connecting steel pipes, forms a fixed whole with the installation ship, and plays a role in supporting and guiding the auxiliary sinking frame in the sinking process. The auxiliary sinking frame is composed of a U-shaped underframe 2-1 and vertical guide pipes 2-2, through holes are formed in the outer side of each supporting truss 3 on the rectangular boss, the guide pipes 2-2 movably connected with the supporting trusses 3 are arranged in the through holes in a penetrating mode, the guide pipes 2-2 can slide up and down and bear large horizontal loads, the auxiliary sinking frame is mainly used for integrally sinking a deepwater area and a cylindrical foundation and plays a role in connecting the cylindrical foundation with a ship body, four through holes and four guide pipes 2-2 are formed in the embodiment, and a plurality of through holes and the guide pipes 2-2 can be correspondingly formed in the rectangular boss according to requirements in the implementation process.
The bottom end of the guide tube 2-2 is positioned below the rectangular boss and welded with the U-shaped underframe 2-1; the U-shaped underframe 2-1 and the rectangular boss are connected and fixed with a cylindrical foundation 10 through a U-shaped groove and a guy cable, the guy cable comprises a transverse guy cable 9-1 and a vertical guy cable 9-2, and the transverse guy cable 9-1 flexibly connects the U-shaped underframe 2-1 of the auxiliary sinking frame with the cylindrical foundation 10; vertical guy wires 9-2 flexibly connect the cylindrical foundation 10 with the installation vessel 1. The inhaul cable can be tensioned and loosened according to the sinking depth, speed, environmental conditions and the like of the cylindrical foundation, and the flexible connection effect of the cylindrical foundation and the auxiliary sinking frame is achieved.
The tower 6 is arranged in the middle of the cylindrical foundation 10, the bottom of the cylindrical foundation 10 is open, and the inside of the cylindrical foundation 10 is a cavity structure which can be divided into cabins or not. A diagonal brace 11 for reinforcement is arranged between the tower cylinder 6 and the cylinder foundation 10, a machine head 8 is arranged at the top end of the tower cylinder 6, and the shaft of the machine head 8 is connected with the fan blades 7; one end of the centralizing guide frame 4 is connected with the supporting truss 3, and the other end is connected with the tower 6 through the anchor ear 5 and is used for performing auxiliary supporting and restraining functions on the tower 6 in the processes of debugging, transportation and installation.
In the embodiment, the guide tube 2-2 and the U-shaped underframe 2-1 are all made of steel tubes.
The installation construction method of the offshore wind power and deep water one-step installation device comprises the following specific operation steps:
first, the whole machine is installed. The cylindrical foundation 10 is prefabricated on land, has certain self-floating stability, temporarily positions the cylindrical foundation 10 at the edge of the code head through wet towing, and then installs and adjusts the upper tower 6, the machine head 8 and the fan blades 7.
And secondly, docking the cylindrical foundation with the installation vessel. After the whole installation and debugging of the barrel type foundation and the fan are finished, the barrel type foundation 10 and the upper tower barrel 6, the machine head 8 and the fan blades 7 are integrally floated through pumping air in the barrel type foundation 10, are in butt joint with the U-shaped groove of the installation ship 1, and are adjusted to centralize the guide frame 4 and the anchor ear 5 and tightly hold the tower barrel 6. The inflation is continued in the cylinder foundation 10, so that the top of the cylinder foundation 10 is tightly propped against the installation ship, and meanwhile, the auxiliary sinking frame is flexibly connected with the cylinder foundation 10 by the transverse inhaul cable 9-1. The cylindrical foundation is flexibly connected with the installation vessel by a vertical guy rope 9-2.
And thirdly, adjusting. The levelness of the cylindrical foundation and the connection performance of the cylindrical foundation and the installation vessel are adjusted through the cabin pressure in the cylindrical foundation 10 and the auxiliary sinking frame, the transverse inhaul cables 9-1 and the vertical inhaul cables 9-2.
Fourth, transporting. The installation vessel 1 is in floating motion with the whole barrel type foundation 10, the tower barrel 6, the machine head 8 and the fan blades 7, the barrel type foundation 10 is tightly connected with the installation vessel 1 and the auxiliary sinking frame in the floating motion process, and the environmental load in the floating motion process is resisted through the floating stability of the hull and the self body.
And fifthly, installing the deep water in a sinking way, as shown in fig. 5. After the installation ship 1 and the whole barrel foundation 10, the upper tower barrel 6, the machine head 8 and the fan blades 7 float to a designated installation site, the anchor ear 5 is loosened, the barrel foundation 10 firstly discharges the gas in the barrel so that the gravity of the whole barrel foundation 10 and the whole fan is greater than the buoyancy, and the vertical inhaul cable 9-2 is tensioned to bear the gravity and buoyancy difference of the whole barrel foundation, the tower barrel, the machine head and the fan blades; before mud is added to the bottom of the cylindrical foundation 10, the air pressure in the cabin of the cylindrical foundation 10 is regulated at any time in the whole sinking process, so that the gravity of the cylindrical foundation 10 and the whole fan is ensured to be larger than the borne buoyancy, and the difference between the cylindrical foundation and the fan is kept basically unchanged; slowly loosening the vertical inhaul cable, tensioning and locking the transverse inhaul cable after the top of the cylindrical foundation 10 is flush with the top of the U-shaped underframe 2-1 of the auxiliary sinking frame; by controlling the guide pipe 2-2, the auxiliary sinking frame and the vertical guy rope 9-2 are lowered to relax synchronously, the auxiliary sinking frame and the cylindrical foundation 10 are lowered integrally, and when the bottom of the cylindrical foundation 10 is about 0.5-1 m away from the seabed surface, the auxiliary sinking frame and the vertical guy rope 9-2 stop sinking downwards. Loosening the transverse inhaul cable 9-1, continuously loosening the vertical inhaul cable 9-2, and enabling the cylindrical foundation 10 to enter mud by means of the difference of the dead weight and the buoyancy of the structure; slowly discharging the gas in the cabin of the cylindrical foundation 10 and loosening the vertical stay rope 9-2 until the internal gas pressure of the cylindrical foundation 10 is consistent with the external pressure; releasing the vertical stay rope 9-2, removing the mounting ship 1, and withdrawing the auxiliary sinking frame; extracting gas or water from the cabin of the cylindrical foundation 10, vacuumizing and pressing down until the top cover of the cylindrical foundation 10 is filled with mud, and completing sinking installation; the installation vessel 1 is returned.
The invention is not limited to the embodiments described above. The above description of specific embodiments is intended to describe and illustrate the technical aspects of the present invention, and is intended to be illustrative only and not limiting. Numerous specific modifications can be made by those skilled in the art without departing from the spirit of the invention and scope of the claims, which are within the scope of the invention.
Claims (2)
1. The installation method of the marine wind power deep water one-step installation device comprises an installation ship, an auxiliary sinking frame, a supporting truss, a centralizing guide frame, a tower barrel, fan blades, a machine head, a inhaul cable and a barrel-shaped foundation, wherein a rectangular boss is arranged at the rear part of a ship body of the installation ship, a U-shaped groove is formed in the rectangular boss, and four top corners of the rectangular boss are respectively integrally provided with a vertical supporting truss; the auxiliary sinking frame is composed of a U-shaped base frame and vertical guide pipes, through holes are formed in the outer side of each supporting truss on the rectangular boss, the guide pipes movably connected with the supporting trusses are arranged in the through holes in a penetrating mode, and the bottom ends of the guide pipes are located below the rectangular boss and fixedly connected with the U-shaped base frame; the U-shaped underframe and the rectangular boss are provided with the cylindrical foundation through the U-shaped groove and the inhaul cable, the tower barrel is arranged in the middle of the cylindrical foundation, a diagonal bracing for reinforcement is arranged between the tower barrel and the cylindrical foundation, the machine head is arranged at the top end of the tower barrel, and the shaft of the machine head is connected with the fan blades; one end of the centralizing guide frame is connected with the supporting truss, and the other end of the centralizing guide frame is connected with the tower drum through a hoop and is used for achieving the functions of auxiliary support and constraint on the tower drum in the processes of debugging, transportation and installation, and the centralizing guide frame is characterized by comprising the following steps:
(1) The cylindrical foundation is prefabricated on land, and the installation and the debugging of the tower cylinder, the machine head and the fan blades are carried out;
(2) After the installation and debugging of the cylindrical foundation, the tower cylinder, the machine head and the fan blades are finished, the cylindrical foundation, the tower cylinder, the machine head and the fan blades are integrally floated by pumping air into the cylindrical foundation, are butted with U-shaped grooves of an installation ship, and are adjusted to centralize the guide frame and the anchor ear to tightly hold the tower cylinder; continuously pumping air into the cylindrical foundation to tightly prop the top of the cylindrical foundation against the installation vessel, and flexibly connecting the auxiliary sinking frame with the cylindrical foundation by using a transverse inhaul cable; the cylindrical foundation is flexibly connected with the installation ship by a vertical stay rope;
(3) The levelness of the cylindrical foundation and the connection performance of the cylindrical foundation and the installation vessel are adjusted through the internal cabin pressure of the cylindrical foundation and the auxiliary sinking frame, the transverse stay rope and the vertical stay rope;
(4) The installation ship is in floating motion with the cylindrical foundation, the tower cylinder, the machine head and the fan blades integrally, the cylindrical foundation is tightly connected with the installation ship and the auxiliary sinking frame in the floating motion process, and the environmental load in the floating motion process is resisted through the floating stability of the ship body and the ship body;
(5) And the installation vessel, the barrel foundation, the tower barrel, the machine head and the fan blades are integrally floating to a designated installation site and then are installed in a deep water sinking manner.
2. The installation method of an offshore wind power deep water one-step installation device according to claim 1, wherein the step (5) comprises the following deep water sinking installation steps:
A. loosening the anchor ear, and discharging the gas in the barrel to ensure that the gravity of the whole barrel foundation, the tower barrel, the machine head and the fan blade is larger than the buoyancy, and the vertical stay rope is tensioned to bear the gravity and buoyancy difference of the whole barrel foundation, the tower barrel, the machine head and the fan blade; before mud is added to the bottom of the cylindrical foundation, the air pressure in the cylindrical foundation cabin is regulated at any time in the whole sinking process, so that the gravity of the whole cylindrical foundation, the tower, the machine head and the fan blades is ensured to be larger than the borne buoyancy, and the difference between the two is kept basically unchanged;
B. slowly loosening the vertical inhaul cable, tensioning and locking the transverse inhaul cable after the cylindrical foundation top cover is flush with the U-shaped underframe of the auxiliary sinking frame; synchronously lowering the auxiliary sinking frame and the vertical inhaul cable, synchronously sinking the auxiliary sinking frame and the cylindrical foundation, and stopping sinking the auxiliary sinking frame and the vertical inhaul cable downwards when the cylindrical foundation is about 0.5-1 m away from the seabed surface;
C. loosening the transverse inhaul cable, continuously loosening the vertical inhaul cable, and enabling the cylindrical foundation to enter mud by means of the difference of dead weight and buoyancy of the cylindrical foundation and the integral structure of the tower, the machine head and the fan blades; slowly exhausting the gas in the barrel-type foundation cabin and loosening the vertical stay rope until the internal gas pressure of the barrel-type foundation is consistent with the external pressure; releasing the vertical stay rope, removing the installation ship, and withdrawing the auxiliary sinking frame;
D. and (3) extracting gas or water from the cylindrical foundation, vacuumizing and pressing down until the top cover of the cylindrical foundation is in mud, and completing sinking installation and returning the installation ship.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811133780.1A CN109185071B (en) | 2018-09-27 | 2018-09-27 | Offshore wind power deep water one-step installation device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811133780.1A CN109185071B (en) | 2018-09-27 | 2018-09-27 | Offshore wind power deep water one-step installation device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109185071A CN109185071A (en) | 2019-01-11 |
| CN109185071B true CN109185071B (en) | 2023-06-06 |
Family
ID=64906676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811133780.1A Active CN109185071B (en) | 2018-09-27 | 2018-09-27 | Offshore wind power deep water one-step installation device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109185071B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482033B (en) * | 2021-06-16 | 2022-07-12 | 中国能源建设集团广东省电力设计研究院有限公司 | Eccentric multi-cylinder jacket foundation and wind power complete machine construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1777348A1 (en) * | 2005-10-21 | 2007-04-25 | Dredging International N.V. | Device and method for offshore installations |
| CN200978412Y (en) * | 2006-12-13 | 2007-11-21 | 中国水利水电科学研究院 | Sinking-proof easy leveling and dismounting large-scale at-sea wind-electricity basal bearing platform |
| CN101798815A (en) * | 2010-01-29 | 2010-08-11 | 道达(上海)风电投资有限公司 | Marine wind turbine foundation for steel-concrete combined structure |
| CN103921900A (en) * | 2014-01-31 | 2014-07-16 | 中交一航局第二工程有限公司 | Overall offshore wind generating set conveying and mounting all-in-one ship with primary floating body and secondary floating body and overall conveying and mounting method |
| CN106894953A (en) * | 2017-02-28 | 2017-06-27 | 天津大学 | A kind of marine four basic formula wind-powered electricity generation whole machine installation ships and its single step construction method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2453766B1 (en) * | 2012-10-08 | 2015-03-10 | Iberdrola Ingieneria Y Construccion S A U | Boat to install a floating platform and procedure for installing a floating platform that uses that boat |
-
2018
- 2018-09-27 CN CN201811133780.1A patent/CN109185071B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1777348A1 (en) * | 2005-10-21 | 2007-04-25 | Dredging International N.V. | Device and method for offshore installations |
| CN200978412Y (en) * | 2006-12-13 | 2007-11-21 | 中国水利水电科学研究院 | Sinking-proof easy leveling and dismounting large-scale at-sea wind-electricity basal bearing platform |
| CN101798815A (en) * | 2010-01-29 | 2010-08-11 | 道达(上海)风电投资有限公司 | Marine wind turbine foundation for steel-concrete combined structure |
| CN103921900A (en) * | 2014-01-31 | 2014-07-16 | 中交一航局第二工程有限公司 | Overall offshore wind generating set conveying and mounting all-in-one ship with primary floating body and secondary floating body and overall conveying and mounting method |
| CN106894953A (en) * | 2017-02-28 | 2017-06-27 | 天津大学 | A kind of marine four basic formula wind-powered electricity generation whole machine installation ships and its single step construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109185071A (en) | 2019-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10337499B1 (en) | Self-installing column stabilized offshore wind turbine system and method of installation | |
| CN103917439B (en) | There is the offshore platforms of external post | |
| CN102677694B (en) | Offshore wind power submersible foundation structure and complete fan installation construction method thereof | |
| CN101804849B (en) | Construction program of semi-submersible platform for offshore oil and gas development | |
| KR20120047740A (en) | Deck ascent and descent type worktable ship and construction method of shore wind power generation facility using the same | |
| CN111661273B (en) | Installation and construction method of deep and open sea semi-submersible fan | |
| CN107630461B (en) | Combined offshore four-buoy buoyancy tank foundation structure and construction method thereof | |
| CN113482033B (en) | Eccentric multi-cylinder jacket foundation and wind power complete machine construction method thereof | |
| CN111139830A (en) | Seat bottom pile inserting type single pile stabilizing frame and pile sinking method | |
| US2921442A (en) | Submergible barge | |
| CN108374430A (en) | A kind of marine submersible basis and auxiliary floating apparatus and construction method entirely | |
| CN113148028A (en) | Semi-submersible type immersed tube transportation and installation integrated ship and construction process | |
| CN115788782A (en) | Floating type fan offshore installation process | |
| CN216834193U (en) | Floating body and floating type offshore transformer substation | |
| CN109185071B (en) | Offshore wind power deep water one-step installation device and method | |
| CN214524328U (en) | Semi-submersible type immersed tube transporting and installing integrated ship | |
| JP5820953B1 (en) | Wind power generator assembly method, wind power generator disassembly method, wind power generator installation method, and wind power generator work ship | |
| CN216035031U (en) | Underwater local dry land maintenance system | |
| CN113184117A (en) | Novel Spar type fan whole machine floating transportation method | |
| CN210151774U (en) | Tool for hoisting vertical pile of steel pipe pile of offshore wind power single-pile foundation | |
| CN112814015A (en) | Combined structure system of multi-pile foundation and floating type fan and single-ship installation method | |
| CN210126614U (en) | Immersed tube combined type transportation and installation equipment | |
| CN114162273A (en) | Independent type marine towing and installation dual-purpose buoyancy adjustable buoy and construction method | |
| CN115704209A (en) | Shallow water area offshore platform installation method | |
| CN112814014A (en) | Combined structure system of single-pile foundation and floating type fan and double-ship installation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |