WO2023279623A1 - 一种浮式船舶起吊结构及其方法 - Google Patents

一种浮式船舶起吊结构及其方法 Download PDF

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Publication number
WO2023279623A1
WO2023279623A1 PCT/CN2021/131228 CN2021131228W WO2023279623A1 WO 2023279623 A1 WO2023279623 A1 WO 2023279623A1 CN 2021131228 W CN2021131228 W CN 2021131228W WO 2023279623 A1 WO2023279623 A1 WO 2023279623A1
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negative pressure
pressure cylinder
ship
force
crane
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PCT/CN2021/131228
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English (en)
French (fr)
Chinese (zh)
Inventor
周锋
李飞
陈鹏宇
杜浩楠
王建国
葛彬
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江苏亨通蓝德海洋工程有限公司
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Priority to JP2023600123U priority Critical patent/JP3247078U/ja
Publication of WO2023279623A1 publication Critical patent/WO2023279623A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B77/00—Transporting or installing offshore structures on site using buoyancy forces, e.g. using semi-submersible barges, ballasting the structure or transporting of oil-and-gas platforms
    • B63B77/10—Transporting or installing offshore structures on site using buoyancy forces, e.g. using semi-submersible barges, ballasting the structure or transporting of oil-and-gas platforms specially adapted for electric power plants, e.g. wind turbines or tidal turbine generators
    • 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

Definitions

  • the invention relates to the technical field of ships, in particular to a floating ship lifting structure and a method thereof.
  • the crawler crane is placed on the floating ship for hoisting operations, and the crawler crane needs to control the lateral force and inclination angle. Since the ship has roll, pitch and heave motions, and the crawler crane is fixed on the ship, the crane will produce an unstable state with the movement of the ship, and the hoisting of heavy objects will cause the center of gravity of the ship to change and generate a heel angle. Among them, the roll and pitch will generate the lateral force perpendicular to the boom and the force along the boom. However, the sum of the heave motion and the vertical components of roll and pitch will cause gravity weighting of the ship, which seriously affects the lifting operation of the ship.
  • the present invention provides a floating ship lifting structure and method thereof, which improves the stability of floating ship hoisting and ensures the normal lifting operation of the ship.
  • a lifting structure for a floating ship comprising: a ship body and a crane body, the ship body is connected to the crane body, at least four sets of ballast tanks are provided at both ends of the ship body, and the ballast tanks are connected to the The ship body is connected, one side of the ballast tank is provided with a negative pressure cylinder, and the negative pressure cylinder is connected with the ship body, and the ballast tanks are connected to each other through the force of the negative pressure cylinder. Correspond and cooperate with each other to allocate ballast water.
  • the invention provides a floating ship hoisting structure and method thereof, which improves the stability of the floating ship hoisting and ensures the normal hoisting operation of the ship.
  • a deck is provided on the ship body, a deck winch is provided on the deck, the deck winch is connected to the deck, and the negative pressure cylinder is connected to the deck winch through a first metal rope.
  • the positioning anchors are arranged at four corners of the ship body, and the positioning anchors are connected to the deck winches through second metal ropes.
  • a guide mechanism is provided on the side of the deck, the guide mechanism is connected to the deck, and the guide mechanism is used for guiding when the negative pressure cylinder is raised and lowered.
  • a water pump is provided inside the negative pressure cylinder, and the water pump is used to discharge the water in the negative pressure cylinder to form a negative pressure.
  • the negative pressure cylinder is provided with a force measuring device for the negative pressure cylinder, and the force measuring device for the negative pressure cylinder is used to monitor the force of the negative pressure cylinder.
  • the force measuring device of the negative pressure cylinder includes: several pressure gauges, data collectors and data processors, the pressure gauges are arranged in the force monitoring area of the negative pressure cylinder, and the pressure gauges and The data collector is electrically connected, the data collector is electrically connected to the data processor, and the data processor is electrically connected to the ballast tank controller for controlling the ballast tank to allocate ballast water.
  • the impellers are assembled into an impeller assembly, and the impeller assembly is connected with the ship body.
  • the crane bodies are used to lift the fan
  • the deck is connected to the crane body
  • the two sides of the crane body are opposite to each other with at least Two wind ropes.
  • hub tooling is provided on the deck, and the hub tooling is connected to the deck.
  • the invention provides a method for lifting a floating ship, comprising the following steps:
  • control of the transverse inclination angle when the floating ship enters the construction site in step S1 includes the following steps:
  • S14 Adjust the ballast water according to the force of the four negative pressure cylinders, and calculate the average force of each negative pressure cylinder in one cycle as f1, f2, f3 and f4.
  • the average force of f1, f2, f3 In and f4 select the maximum value of the force of a negative pressure cylinder as fmax, and select the minimum force of a negative pressure cylinder as fmin, and pre-set the threshold of the allowable force deviation as f difference.
  • the ballast tank allocates ballast water; it goes back and forth until fmax-fmin ⁇ f difference;
  • control of the lateral inclination angle when the main body of the crane in step S2 is hoisted comprises the following steps:
  • the main body of the S21 crane is lifted slowly under force
  • S22 adjusts the ballast water according to the force of the four negative pressure cylinders, and calculates the average force of each negative pressure cylinder in one cycle as f1, f2, f3 and f4.
  • f4 select the maximum value of the force of a negative pressure cylinder as fmax, and select the minimum force of a negative pressure cylinder as fmin, and pre-set the threshold of the allowable force deviation as f difference.
  • the maximum force of the pressure cylinder is fmax, and the minimum force of the negative pressure cylinder at the other end of the ship body is fmin.
  • the ballast tanks allocated ballast water; so reciprocating, until fmax-fmin ⁇ f difference;
  • control of the lateral inclination angle when the arm of the crane main body in step S3 rotates includes the following steps:
  • the main body of the S31 crane slowly rotates the boom
  • S32 adjusts the ballast water according to the force of the four negative pressure cylinders, and calculates the average force of each negative pressure cylinder in one cycle as f1, f2, f3 and f4.
  • f4 select the maximum value of the force of a negative pressure cylinder as fmax, and select the minimum force of a negative pressure cylinder as fmin, and pre-set the threshold of the allowable force deviation as f difference.
  • the maximum force of the pressure cylinder is fmax, and the minimum force of the negative pressure cylinder at the other end of the ship body is fmin.
  • the ballast tanks allocated ballast water; so reciprocating, until fmax-fmin ⁇ f difference;
  • Fig. 1 is the structural diagram (ship approach) of a kind of floating ship lifting structure provided by the present invention
  • Fig. 2 is the structural diagram of a kind of floating ship lifting structure provided by the present invention (positioning in the seabed mud of construction site under the negative pressure cylinder);
  • Fig. 3 is the structural diagram of a kind of floating ship lifting structure provided by the present invention (tower transport ship enters the site);
  • Fig. 4 is the structural diagram (hoisting tower) of a kind of floating ship lifting structure provided by the present invention
  • Fig. 5 is a structural diagram of a kind of floating ship lifting structure provided by the present invention (the impeller transport ship enters the site);
  • Fig. 6 is a structure diagram (lifting impeller) of a kind of floating ship lifting structure provided by the present invention.
  • Fig. 7 is a structural diagram (assembly of impellers) of a floating ship lifting structure provided by the present invention.
  • 1-ballast tank 2-negative pressure cylinder; 3-ship body; 4-crane main body; 5-deck; 6-deck winch; 7-first metal rope; 8-locating anchor; 9-second metal Rope; 10-guiding mechanism; 11-submarine soil at the construction site; 12-tower transport ship; 13-pile foundation; 14-impeller transport ship; 15-impeller assembly.
  • the present invention uses some embodiments in order to achieve the purpose of the present invention.
  • the present invention provides a floating ship lifting structure construction method, including the following construction steps:
  • Floating ships need to enter the site against the tide according to the direction of the tide. When the floating ship retreats, it needs to retreat along the tide, so as to prevent the positioning anchor at the stern from losing control and hitting the wind turbine.
  • the floating ship enters the site arrange staff to measure the distance between the ship's bow and the construction site with a laser range finder, and position the four corners of the floating ship by throwing the anchor 8 through the anchoring boat.
  • the negative pressure cylinder 2 is lowered into the seabed soil 11 of the construction site through the deck winch 6. After the negative pressure cylinder 2 is lowered, the water in the negative pressure cylinder 2 is discharged through the internal water pump of the negative pressure cylinder 2 to form a negative pressure. The internal and external pressure difference of the negative pressure cylinder 2 is pressed into the seabed soil 11 of the construction site, the negative pressure cylinder 2 is leveled after being tightened by the deck winch 6, and the positioning of the floating ship is completed;
  • the tower carrier 12 After the floating ship has been positioned, organize the tower carrier 12 to barge according to the flow direction on the spot. Before berthing, the anchor cables on the side of the floating ship should be properly loosened according to the current and other conditions to facilitate the berthing of the tower transport ship, and at the same time, the anchor boat should be assisted.
  • the tower transport ship 12 is tied to the floating ship by cables after being barged on the side of the floating ship, and the tower transport ship 12 is in a position where the crane main body 4 of the floating ship can lift;
  • the main body 4 of the two cranes on the ship body 3 lifts the tower at the same time and turns over, and lifts off the deck 5 side.
  • the luffing angle of the main body 4 of the crane ensures that the hook is at the center of gravity.
  • the tower After slowly rotating the boom to reach the direction of the side base of the ship body, the tower is slowly lifted, and after being lifted to a predetermined height, the boom is slowly laid down to the top of the first section of the tower, and slowly falls to complete the hoisting of the tower .
  • the floating ship Before the assembly of the impeller, in order to avoid impeller collision, the floating ship should be anchored horizontally before assembly, and the floating ship should be twisted to one side before assembly;
  • the main and auxiliary booms are translated outward to a suitable position, the main crane slowly rotates to one side and retracts, and the auxiliary crane slowly rotates to the other side until the tip of the blade enters the deck and continues to rotate until the blade tip enters the deck.
  • the impeller is hoisted from one side of the floating ship to the other side of the ship through the four main parts of two cranes, and the main crane rotates until the impeller reaches the predetermined installation position;
  • the impeller hoisting is carried out in the weather with good weather and sea conditions, and the weather conditions during the entire blade hoisting process are obtained in advance, and the relevant plans are prepared in advance.
  • the main body of the crane lifts the impeller, and when the impeller is lifted to the height of one person, stop.
  • the main hoist is hung on the hub tooling hanger, and the auxiliary crane uses the special sling for turning over to lift the transport tooling position of a single blade on the ship's side.
  • the two cranes rise at the same time, and the lifting speed of the auxiliary crane is slower than
  • the lifting speed of the main crane keeps the blades off the ground and the center of gravity of the impeller is within the deck during the whole process.
  • the staff in the main engine After hoisting the impeller system to the height of the main engine, the staff in the main engine keep in touch with the crane through the intercom, and direct the crane to move slowly. hole in the wheel locking flange.
  • S7 moves the floating vessel to the next machine station for construction.
  • the lateral force of the crane main body 4 will cause the floating ship to be unstable.
  • the reason for the lateral force of the crane main body 4 is: roll, pitch, sway, longitudinal swing movement;
  • the sway and surge motions of floating ships are horizontal linear displacements, which are caused by the environmental loads of wind, waves and currents.
  • the roll and pitch of a floating ship is the angular displacement movement around the coordinate axis, which is caused by the environmental load of wind, wave and current and the center of gravity offset during hoisting.
  • the offset of the center of gravity during the hoisting process of the floating ship can be calculated, which is divided into the instantaneous moment generated during the hoisting and the moment change generated during the rotation of the suspended object.
  • the crane can be slowly stressed during hoisting, and at the same time, by reversely adjusting the ballast water balance, the force of the four negative pressure cylinders 2 of the floating ship can be monitored during hoisting to make it
  • the magnitude of the force is basically the same.
  • the invention provides a floating ship lifting structure and a method thereof, which resist the environmental load of the floating ship, improve the stability of the floating ship's hoisting, and ensure the normal lifting operation of the ship.
  • the present invention provides a floating ship lifting structure, comprising: a ship body 3 and a crane body 4, the ship body 3 is connected to the crane body 4, and at least four groups of ballast tanks are provided at both ends of the ship body 3 1.
  • the ballast tank 1 is connected to the ship body 3, and one side of the ballast tank 1 is provided with a negative pressure cylinder 2, and the negative pressure tank 2 is connected to the ship body 3.
  • the magnitude of the force on the pressure cylinder 2 corresponds to the ballast tank 1 and cooperates with each other to allocate ballast water.
  • the ship body 3 is provided with a deck 5, and the deck 5 is provided with a deck winch 6, and the deck winch 6 is connected with the deck 5, and the negative pressure cylinder 2 is connected to the deck through a first metal rope 7. Winch 6 connection.
  • the positioning anchor 8 is arranged at the four corners of the ship body 3, the positioning anchor 8 is connected with the deck winch 6 through the second metal rope 9, and the positioning anchor 8 is thrown into the seabed soil 11 of the construction site for positioning.
  • the problem of swaying and surge motion of the floating ship is solved when the floating ship is hoisted.
  • a guide mechanism 10 is provided on the side of the deck 5, the guide mechanism 10 is connected with the deck 5, and the guide mechanism 10 is used for guiding when the negative pressure cylinder 2 is raised and lowered.
  • a water pump is arranged inside the negative pressure cylinder 2, and the water pump is used to discharge the water in the negative pressure cylinder 2 to form a negative pressure.
  • the negative pressure cylinder 2 is provided with a negative pressure cylinder force measuring device, and the negative pressure cylinder force measuring device is used to monitor the force of the negative pressure cylinder.
  • the negative pressure cylinder force measuring device includes: several pressure gauges, data collectors and data processors, the pressure gauges are arranged in the force monitoring area of the negative pressure cylinder, the pressure gauges and the data collector Electrically connected, the data collector is electrically connected to the data processor, and the data processor is electrically connected to the ballast tank controller, and is used to control the ballast tank to allocate ballast water, so that the four negative pressure cylinders 2
  • the magnitude of the force is the same, the stability of the hoisting of the floating ship is improved, and the construction efficiency of the hoisting operation of the ship is improved.
  • the impellers are assembled into an impeller assembly 15 , and the impeller assembly 15 is connected with the ship body 3 .
  • the deck 5 is provided with at least two sets of crane main bodies 4, the crane main bodies 4 are used to lift the fan, the deck 5 is connected with the crane main bodies 4, and the two sides of the crane main body 4 are opposite to each other. At least two wind ropes.
  • Hub tooling is provided on the deck 5 , and the hub tooling is connected with the deck 5 .
  • the invention provides a method for lifting a floating ship, comprising the following steps:
  • the lateral inclination angle is controlled when the boom of the main body 4 of the S3 crane rotates.
  • step S1 is to control the lateral inclination when the floating ship enters the construction site for positioning, including the following steps:
  • S14 adjust the ballast water according to the force of the four negative pressure cylinders 2, and calculate the average force of each negative pressure cylinder 2 in one cycle as f1, f2, f3 and f4, and the average force of f1, f2 , from f3 and f4, select the maximum force value of one negative pressure cylinder 2 as fmax, and select the minimum force value of one negative pressure cylinder 2 as fmin, and pre-set the threshold of allowable force deviation as f difference.
  • the maximum value of the negative pressure cylinder 2 at one end of 3 is fmax
  • the minimum force of the negative pressure cylinder 2 at the other end of the ship body 3 is fmin.
  • fmax-fmin>f difference the pressure at one end of the ship body 3
  • the ballast tank 1 allocates ballast water to the ballast tank 1 at the other end of the ship body 3; it goes back and forth until fmax-fmin ⁇ f difference;
  • step S2 adjusts the lateral inclination angle of the crane main body 4 when hoisting, including the following steps:
  • the main body 4 of the S21 crane is lifted slowly under force
  • S22 adjusts the ballast water according to the force of the four negative pressure cylinders 2, and calculates the average force of each negative pressure cylinder 2 in one cycle as f1, f2, f3 and f4. , from f3 and f4, select the maximum force value of one negative pressure cylinder 2 as fmax, and select the minimum force value of one negative pressure cylinder 2 as fmin, and pre-set the threshold of allowable force deviation as f difference.
  • the maximum value of the negative pressure cylinder 2 at one end of 3 is fmax
  • the minimum force of the negative pressure cylinder 2 at the other end of the ship body 3 is fmin.
  • fmax-fmin>f difference the pressure at one end of the ship body 3
  • the ballast tank 1 allocates ballast water to the ballast tank 1 at the other end of the ship body 3; it goes back and forth until fmax-fmin ⁇ f difference;
  • the lateral inclination control of step S3 when the boom of the crane main body 4 rotates includes the following steps:
  • S32 adjusts the ballast water according to the force of the four negative pressure cylinders 2, and calculates the average force of each negative pressure cylinder 2 in one cycle as f1, f2, f3 and f4. , from f3 and f4, select the maximum force value of one negative pressure cylinder 2 as fmax, and select the minimum force value of one negative pressure cylinder 2 as fmin, and pre-set the threshold of allowable force deviation as f difference.
  • the maximum value of the negative pressure cylinder 2 at one end of 3 is fmax
  • the minimum force of the negative pressure cylinder 2 at the other end of the ship body 3 is fmin.
  • fmax-fmin>f difference the pressure at one end of the ship body 3
  • the ballast tank 1 allocates ballast water to the ballast tank 1 at the other end of the ship body 3; it goes back and forth until fmax-fmin ⁇ f difference;

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  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
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  • Transportation (AREA)
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  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
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PCT/CN2021/131228 2021-07-09 2021-11-17 一种浮式船舶起吊结构及其方法 WO2023279623A1 (zh)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN116353811A (zh) * 2023-05-31 2023-06-30 中交第一航务工程局有限公司 一种用于全漂浮式整平船的调平方法及调平系统

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113306677A (zh) * 2021-07-09 2021-08-27 江苏亨通蓝德海洋工程有限公司 一种浮式船舶起吊结构及其方法
CN113860192A (zh) * 2021-09-27 2021-12-31 广东金风科技有限公司 一种起吊运输方法、运输船以及起吊运输设备
CN114060221B (zh) * 2021-11-11 2024-02-06 江苏亨通蓝德海洋工程有限公司 利用浮式船舶进行海上风机安装的机舱吊装及对接方法
CN115977086B (zh) * 2023-01-09 2024-01-16 保利长大工程有限公司 大直径单桩基础桩底拖泥入龙口的施工方法

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CN107630461A (zh) * 2017-09-28 2018-01-26 天津大学 一种组合式海上四浮筒浮箱基础结构及其施工方法
CN110745216A (zh) * 2018-07-23 2020-02-04 中国电建集团华东勘测设计研究院有限公司 一种渔业网箱与浮式风机基础组合结构及施工方法
CN113306677A (zh) * 2021-07-09 2021-08-27 江苏亨通蓝德海洋工程有限公司 一种浮式船舶起吊结构及其方法

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US6244786B1 (en) * 1998-12-07 2001-06-12 Master Marine As Method for offshore load transfer operations and, a floater for offshore transport installation and removal of structural elements
CN107630461A (zh) * 2017-09-28 2018-01-26 天津大学 一种组合式海上四浮筒浮箱基础结构及其施工方法
CN110745216A (zh) * 2018-07-23 2020-02-04 中国电建集团华东勘测设计研究院有限公司 一种渔业网箱与浮式风机基础组合结构及施工方法
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CN116353811B (zh) * 2023-05-31 2023-07-28 中交第一航务工程局有限公司 一种用于全漂浮式整平船的调平方法及调平系统

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