Offshore wind power installation platform

Abstract

The utility model provides an offshore wind power installation platform. The offshore wind power installation platform comprises a main hull; the multiple sets of pile legs are arranged in the vertical direction, and the multiple sets of pile legs are arranged on the main ship body in a penetrating mode; each lifting module is connected with the corresponding set of pile legs and used for driving the corresponding set of pile legs to ascend and descend. Each sectional type pile shoe is connected with the bottom of the corresponding set of pile legs, and the bottom face of each sectional type pile shoe is provided with a set of pressure sensors; the central control system is electrically connected with each pressure sensor; and the sailing state monitoring system is arranged on the main ship body and used for monitoring the sailing route and the sailing speed of the main ship body. According to the offshore wind power installation platform, the pressure sensor is arranged on the bottom face of the pile shoe, the supporting force of the seabed can be detected in real time, and then the deployment safety of the installation platform is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of marine equipment, in particular to an offshore wind power installation platform. Background Art

[0002] The self-elevating wind power installation platform is a kind of wind power construction equipment used for developing offshore wind power resources. As the demand for wind power equipment develops towards large-scale and deep-water, wind turbine manufacturers are developing large-scale wind turbines of 12-20MW. The operating water depth of large wind turbines reaches 60-80 meters, and the foundation weight is nearly 2,500 tons. The installation difficulty of large wind turbines and wind turbine foundation equipment has increased significantly, so the self-elevating wind power installation platform also needs to be upgraded to large-scale and deep-water. However, the current wind power installation platform cannot meet the installation requirements of large wind turbines in terms of lifting capacity, lifting height, applicable water depth, cargo capacity, and self-propulsion capacity. As the self-elevating wind power installation platform becomes larger, its weight also increases significantly, which requires higher support force from the seabed surface during deployment. However, the platform can only roughly predict the support force of the seabed surface based on previous exploration data. This makes it impossible to determine whether the support force of the pile legs meets the support requirements during actual deployment. If the support force of the pile legs does not meet the support requirements, the installation platform will not be able to operate stably and will be prone to tilting when hoisting large equipment, posing a safety hazard. Utility Model Content

[0003] In view of this, the utility model provides an offshore wind power installation platform, which can detect the supporting force exerted on the installation platform to avoid tilting of the platform during operation.

[0004] In order to solve at least one of the above technical problems, the present invention adopts the following technical solutions:

[0005] The utility model provides an offshore wind power installation platform, comprising:

[0006] main hull;

[0007] Multiple groups of pile legs are arranged in a vertical direction, and the multiple groups of pile legs are respectively penetrated on the main hull;

[0008] A plurality of lifting modules, each lifting module is connected to a corresponding group of pile legs, and each lifting module is used to drive the corresponding group of pile legs to lift;

[0009] A plurality of segmented pile shoes, each segmented pile shoe is respectively arranged at the bottom of a group of pile legs corresponding thereto, and each segmented pile shoe is respectively provided with at least one group of pressure sensors;

[0010] A central control system, the central control system is electrically connected to each pressure sensor, and the central control system is used to display the pressure detected by each pressure sensor;

[0011] The navigation status monitoring system is arranged on the main hull and is used to monitor the navigation route and speed of the main hull.

[0012] In one embodiment of the present invention, the pile legs are truss-type pile legs.

[0013] In one embodiment of the present invention, each segmented pile shoe comprises:

[0014] A fixing shoe, one end of which is connected to a corresponding group of pile legs, a nail head is arranged at the center of one end of the fixing shoe away from the pile legs, and a plurality of sliding blocks are arranged on the outer side wall of the fixing shoe;

[0015] A movable shoe, wherein a first through hole is arranged at the center of the movable shoe in a vertical direction, the fixed shoe is inserted into the first through hole, an inwardly recessed groove is arranged on the inner side wall of the first through hole, and a plurality of slide rails are arranged in the groove, each slide rail is respectively connected to a corresponding slider, and limiters are arranged at both ends of each slide rail, and a pressure sensor is arranged on the bottom surface of the movable shoe;

[0016] The baffle is arranged at the bottom of the first through hole, and a second through hole is arranged at the center of the baffle in a vertical direction, and the nail head is passed through the second through hole.

[0017] In one embodiment of the present invention, the outer diameter of the fixing shoe is greater than the outer diameter of the nail head, the outer diameter of the fixing shoe is the same as the diameter of the first through hole, and the outer diameter of the nail head is the same as the diameter of the second through hole.

[0018] In one embodiment of the present invention, each segmented pile shoe further comprises:

[0019] A plurality of pile punching nozzles are arranged at one end of the fixing shoe away from the pile leg, and the plurality of pile punching nozzles are arranged around the nail head, and each pile punching nozzle is used for spraying pile punching water respectively.

[0020] In one embodiment of the present invention, each segmented pile shoe further comprises:

[0021] A water flow and water pressure detector is arranged at the end of the fixed boot away from the pile leg, and the water flow and water pressure detector is electrically connected to the central control system. The water flow and water pressure detector is used to detect the flow rate and water pressure of the pile flushing water.

[0022] In one embodiment of the present invention, the main hull is a fully welded steel hull, and the middle part of the main hull is a double bottom.

[0023] In one embodiment of the utility model, the stern of the main hull is provided with an azimuth thruster, and the bow of the main hull is provided with a lateral thruster and a retractable thruster.

[0024] In one embodiment of the present invention, the lifting modules are electric rack and pinion lifting modules, and each lifting module includes multiple layers of lifting units.

[0025] In one embodiment of the present invention, the offshore wind power installation platform further includes:

[0026] Main crane, which is installed on the deck of the main hull;

[0027] Auxiliary crane, which is installed on the deck of the main hull;

[0028] Living building, which is located on the deck of the main hull;

[0029] The first deck crane is arranged at the bow of the main hull;

[0030] The second deck crane is arranged at the stern of the main hull.

[0031] The above technical solution of the utility model has at least one of the following beneficial effects:

[0032] The offshore wind power installation platform of the utility model sets a pressure sensor on the bottom surface of each pile shoe and uses a central control system to display the pressure, that is, to display the support force of the seabed on the wind power installation platform, thereby determining whether the support force of the pile legs meets the support requirements, thereby avoiding the installation platform from tilting and improving the safety of platform deployment. In addition, by setting up segmented pile shoes, the pile shoes can be lifted in segments, thereby effectively reducing the adsorption force between the pile shoes and the seabed soil, and effectively improving the efficiency of pile extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a side view of an offshore wind power installation platform in an embodiment of the utility model;

[0034] Figure 2 A top view of an offshore wind power installation platform in an embodiment of the utility model;

[0035] Figure 3 This is a schematic diagram of the initial state structure of the segmented pile shoe in the offshore wind power installation platform in the embodiment of the utility model;

[0036] Figure 4 This is a schematic diagram of the structure of the pile legs in the offshore wind power installation platform in the embodiment of the utility model;

[0037] Figure 5 It is a structural schematic diagram of the fixed pile shoe of the segmented pile shoe in the offshore wind power installation platform in the embodiment of the utility model when it is pulled up;

[0038] Figure 6 It is a schematic structural diagram of a lifting module in an offshore wind power installation platform in an embodiment of the utility model.

[0039] Figure numerals: 100, main hull; 101, azimuth thruster; 102, lateral thruster; 103, main crane; 104, auxiliary crane; 105, living building; 200, pile leg; 300, lifting module; 400, segmented pile shoe; 401, pressure sensor; 410, fixed shoe; 411, nail head; 412, slider; 420, movable shoe; 430, baffle; 440, pile punching nozzle. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0041] Firstly, an offshore wind power installation platform according to an embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0042] refer to Figure 1 and Figure 2 , Figure 1 This is a side view of an offshore wind power installation platform in an embodiment of the utility model. Figure 2 FIG. 1 is a top view of an offshore wind power installation platform in an embodiment of the utility model. Figure 1 and Figure 2As shown, the offshore wind power installation platform of the embodiment of the utility model includes: a main hull 100, multiple pile legs 200, multiple lifting modules 300, multiple segmented pile shoes 400, a central control system (not shown) and a navigation status monitoring system (not shown). Among them, the deck area of ​​the main hull 100 is 4500-5500 square meters, the variable load is 6500-8000 tons, and 2-3 sets of 15-20 megawatt wind turbine equipment can be transported. The bow of the main hull 100 is streamlined, and the stern of the main hull 100 is square. A plurality of groups of pile legs 200 are arranged in a vertical direction, and the plurality of groups of pile legs 200 are respectively penetrated on the main hull 100; each lifting module 300 is respectively connected to a corresponding group of pile legs 200, and each lifting module 300 is used to drive the corresponding group of pile legs 200 to lift and lower; each segmented pile shoe 400 is respectively connected to the bottom of a corresponding group of pile legs 200, and each segmented pile shoe 400 is respectively provided with at least one group of pressure sensors 401; the central control system is respectively electrically connected to each pressure sensor 401, and the central control system is used to display the pressure detected by each pressure sensor 401; the navigation status monitoring system is arranged on the main hull 100, and the navigation status monitoring system is used to monitor the navigation route and speed of the main hull 100, and the navigation status monitoring system can adopt the monitoring system in the prior art.

[0043] Specifically, the offshore wind power installation platform can navigate according to a pre-set route, and the navigation status monitoring system can monitor the navigation route and speed of the main hull 100 in real time. In this way, the automated navigation of the offshore wind power installation platform can be achieved. In the navigation state, the pile legs 200 installed on the main hull 100 are in a retracted state, and after arriving at the designated location, the lifting module 300 can control the pile legs 200 to descend until the segmented pile shoes 400 at the bottom of the pile legs 200 are in contact with the seabed surface. For further information, please refer to Figure 3 , Figure 3 Schematic diagram of the initial state structure of the segmented pile shoe in the offshore wind power installation platform in the embodiment of the utility model. Figure 3As shown, when the segmented pile shoe 400 contacts the seabed surface, the pressure sensor 401 arranged on the bottom surface of the segmented pile shoe 400 can detect the pressure on the segmented pile shoe 400 in real time, that is, the supporting force of the seabed on the wind power installation platform. If the supporting force meets the requirements, the operator can control the pile leg 200 to stop descending through the lifting module 300, and if the supporting force does not meet the requirements, the operator can continue to control the pile leg 200 to descend through the lifting module 300 until the supporting force of the seabed meets the supporting requirements, or when the descending depth of the pile leg 200 is about to exceed the length of the pile leg 200, the pile leg 200 is lifted in time. Therefore, by arranging the pressure sensor 401 on the bottom surface of each pile shoe and using the central control system to display the pressure, that is, displaying the supporting force of the seabed on the wind power installation platform, it can be determined whether the supporting force of the pile leg 200 meets the supporting requirements, thereby preventing the wind power installation platform from tilting due to the pile leg 200 not meeting the supporting requirements, thereby improving the safety of platform deployment.

[0044] refer to Figure 4 , Figure 4 This is a schematic diagram of the structure of the pile legs in the offshore wind power installation platform in the embodiment of the utility model. Figure 4 As shown, the pile leg 200 is a truss pile leg 200, preferably, the truss pile leg 200 is a triangular truss pile leg 200, the diagonal brace in the pile leg 200 is X-shaped, the spacing of the main chord can be 10-13 meters, and the length of the pile leg 200 can be 120-140 meters. The triangular truss pile leg 200 has a simple structure, high stability and good seismic performance, and can effectively improve the stability when extending or retracting while reducing costs.

[0045] refer to Figure 3 , and combined with Figure 5 , Figure 5 This is a schematic diagram of the structure of the fixed pile shoe of the segmented pile shoe in the offshore wind power installation platform in the embodiment of the utility model when it is pulled up. Figure 3 and Figure 5As shown, each segmented pile shoe 400 includes: a fixed shoe 410, a movable shoe 420 and a baffle 430. One end of the fixed shoe 410 is connected to a corresponding group of pile legs 200, a nail head 411 is arranged at the center of the end of the fixed shoe 410 away from the pile leg 200, the outer diameter of the fixed shoe 410 is larger than the outer diameter of the nail head 411, and a plurality of sliders 412 are arranged on the outer wall of the fixed shoe 410; a first through hole is arranged in the center of the movable shoe 420 along the vertical direction, the fixed shoe 410 is inserted into the first through hole, and the outer diameter of the fixed shoe 410 is the same as the diameter of the first through hole, an inwardly concave groove is arranged on the inner wall of the first through hole, and a Multiple slide rails, each slide rail is arranged along the vertical direction and is respectively connected to a corresponding slider 412, and limiters are correspondingly arranged at both ends of each slide rail, the pressure sensor 401 is arranged on the bottom surface of the movable shoe 420, and the limiter is used to limit the sliding distance of the slider 412 to prevent the fixed shoe 410 from separating from the movable shoe 420; the baffle 430 is arranged at the bottom of the first through hole, and a second through hole is arranged at the center of the baffle 430 along the vertical direction, the nail head 411 is penetrated in the second through hole, and the outer diameter of the nail head 411 is the same as the diameter of the second through hole. The limiter can be a block, or the inner wall of the two ends of the groove along the vertical direction can form a limiter.

[0046] In this embodiment, since the fixed boot 410 is fixedly connected to the pile leg 200 and the movable boot 420 is slidably connected to the fixed boot 410, when the lifting module 300 controls the pile leg 200 to descend and insert the pile, the movable boot 420 will first contact the seabed, and as the lifting module 300 continues to control the fixed boot 410 to descend, the lower end surface of the fixed boot 410 will be completely in contact with the baffle 430 at the bottom of the first through hole, and the baffle 430 will resist the fixed boot 410 to transfer the vertical load. At the same time, the nail head 411 will also pass through the second through hole on the baffle 430 and insert into the seabed soil, thereby destroying the soil and stabilizing the positioning. At this time, the pressure sensor 401 arranged on the bottom surface of the movable boot 420 can also detect the supporting force of the seabed. During the pile pulling process, the lifting module 300 can lift the fixed shoe 410 upwards. Since the contact surface between the nail head 411 and the seabed soil is very small, the generated adsorption force is also small, so that the fixed shoe 410 can be easily pulled up. When the slider 412 on the outer wall of the fixed shoe 410 slides to the top of the slide rail and contacts the stopper at the top of the slide rail, the fixed shoe 410 can drive the movable shoe 420 to continue to be pulled up. In this way, the difficulty of pile pulling can be reduced.

[0047] like Figure 3 and Figure 5As shown, each segmented pile shoe 400 further includes: a plurality of pile punching nozzles 440, the plurality of pile punching nozzles 440 are arranged at one end of the fixing shoe 410 away from the pile leg 200, and the plurality of pile punching nozzles 440 are arranged around the nail head 411, and each pile punching nozzle 440 is respectively directed toward the second through hole, and each pile punching nozzle 440 is used to spray pile punching water to the second through hole respectively.

[0048] In this embodiment, since the pile-driving nozzle 440 is arranged at the end of the fixed boot 410 away from the pile leg 200, the pile-driving nozzle 440 does not directly contact the seawater or the seabed, so the nozzle of the pile-driving nozzle 440 can be prevented from being blocked by marine organisms or soil. While the fixed boot 410 slides upward, the pile-driving nozzle 440 can spray pile-driving water to the second through hole, and the pile-driving water injected by the pile-driving nozzle 440 can diffuse outward from the second through hole, and start to fill the vacuum environment generated by the adsorption force between the movable boot 420 and the seabed soil from the soil destroyed by the tip of the nail head 411, thereby further reducing the pile-pulling resistance generated by the adsorption force. In this way, it can be ensured that the pile leg 200 is pulled up safely and stably.

[0049] In one embodiment of the utility model, each segmented pile shoe 400 further includes: a water flow and water pressure detector (not shown), which is arranged at one end of the fixed shoe 410 away from the pile leg 200, and the water flow and water pressure detector is electrically connected to the central control system, and the water flow and water pressure detector is used to detect the flow rate and water pressure of the pile-driving water. Therefore, the injection flow rate and injection pressure of the pile-driving nozzle 440 can be adjusted in time according to the flow rate and water pressure of the pile-driving water detected by the water flow and water pressure detector. Therefore, the adaptability to different seabed soils can be improved.

[0050] In one embodiment of the present invention, the bottom area of ​​each segmented pile shoe 400 is 250-300 square meters, thereby effectively reducing the pressure on the seabed.

[0051] In one embodiment of the present invention, the main hull 100 is a fully welded steel hull, and the middle part of the main hull 100 is a double bottom. The fully welded steel hull has high stability, and the double hull can provide additional buoyancy, thereby improving the carrying capacity of the wind turbine.

[0052] like Figure 1 As shown, the stern of the main hull 100 is provided with an azimuth thruster 101, and the bow of the main hull 100 is provided with a lateral thruster 102 and a retractable thruster. Specifically, three 3000-4000 kilowatt azimuth thrusters 101 can be provided at the stern, and two 2500-3500 kilowatt lateral thrusters 102 can be provided on both sides of the bow. In this way, the navigation capability of the offshore wind power installation platform can be effectively improved.

[0053] refer to Figure 6 , Figure 6 This is a schematic diagram of the structure of the lifting module in the offshore wind power installation platform in the embodiment of the utility model. Figure 6 As shown, the lifting module 300 is an electric gear rack lifting module 300, and each lifting module 300 includes multiple layers of lifting units. Specifically, each lifting module 300 includes six layers of lifting units. Thus, the lifting capacity of the pile leg 200 can be effectively improved.

[0054] like Figure 1 and Figure 2 As shown, the offshore wind power installation platform further includes: a main crane 103, an auxiliary crane 104, a living building 105, a first deck crane and a second deck crane. The main crane 103 is arranged on the deck of the main hull 100; the auxiliary crane 104 is arranged on the deck of the main hull 100; the living building 105 is arranged on the deck of the main hull 100; the first deck crane is arranged at the bow of the main hull 100; and the second deck crane is arranged at the stern of the main hull 100.

[0055] Among them, the main crane 103 is a 2500-ton pile-circling slewing crane, the main hook of the main crane 103 has a lifting capacity of 2500 tons and a lifting height of 160-170 meters, and the auxiliary hook of the main crane 103 has a lifting capacity of 500 tons and a lifting height of 180-190 meters. As a result, the main crane 103 can meet the self-turning of the single pile foundation of the 2500-ton wind turbine. The auxiliary crane 104 is a 380-ton auxiliary crane 104 with an operating range of 30 meters and a maximum lifting height of 68 meters on the main deck. The main crane 103 and the auxiliary crane 104 can work together to carry out the turning and hoisting of the tower and blades in the wind farm, thereby improving construction efficiency. The lifting capacity of the first deck crane and the second deck crane is 10-30 tons, which can meet the needs of materials and personnel getting on and off the ship.

[0056] In summary, the offshore wind power installation platform of the utility model, by setting a pressure sensor 401 on the bottom surface of each segmented pile shoe 400, and using the central control system to display the pressure, that is, to display the support force of the seabed on the wind power installation platform, can determine whether the support force of the pile leg 200 meets the support requirements, avoid the installation platform from tilting, and improve the safety of platform deployment. In addition, by setting the segmented pile shoe 400, the pile shoe can be lifted in sections, thereby effectively reducing the adsorption force between the segmented pile shoe 400 and the seabed soil, and effectively improving the efficiency of pile extraction.

[0057] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate quantity restrictions, but indicate the existence of at least one. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0058] The above are preferred implementations of the present utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present utility model. These improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. An offshore wind power installation platform, characterized in that: include: main hull; A plurality of pile legs, wherein the plurality of pile legs are arranged in a vertical direction and the plurality of pile legs are respectively penetrated on the main hull; A plurality of lifting modules, each of which is connected to a corresponding group of pile legs, and each of which is used to drive the corresponding group of pile legs to lift; A plurality of segmented pile shoes, each of which is disposed at the bottom of a group of pile legs corresponding thereto, and at least one group of pressure sensors is disposed on the bottom surface of each segmented pile shoe; A central control system, the central control system is electrically connected to each of the pressure sensors, and the central control system is used to display the pressure detected by each of the pressure sensors; A navigation status monitoring system is provided on the main hull, and is used to monitor the navigation route and speed of the main hull.

2. The offshore wind power installation platform according to claim 1, characterized in that: The pile legs are truss type pile legs.

3. The offshore wind power installation platform according to claim 1, characterized in that: Each of the segmented pile shoes comprises: A fixing shoe, one end of which is connected to a corresponding group of the pile legs, a nail head is arranged at the center of one end of the fixing shoe away from the pile legs, and a plurality of sliding blocks are arranged on the outer side wall of the fixing shoe; A movable shoe, wherein a first through hole is provided at the center of the movable shoe in a vertical direction, the fixed shoe is inserted into the first through hole, an inwardly recessed groove is provided on the inner side wall of the first through hole, and a plurality of slide rails are provided in the groove, each of the slide rails is respectively connected to a corresponding one of the sliders, and limiters are correspondingly provided at both ends of each of the slide rails, and the pressure sensor is provided on the bottom surface of the movable shoe; The baffle is arranged at the bottom of the first through hole, and a second through hole is arranged at the center of the baffle in a vertical direction, and the nail head is penetrated in the second through hole.

4. The offshore wind power installation platform according to claim 3, characterized in that: The outer diameter of the fixing shoe is greater than the outer diameter of the nail head, the outer diameter of the fixing shoe is the same as the diameter of the first through hole, and the outer diameter of the nail head is the same as the diameter of the second through hole.

5. The offshore wind power installation platform according to claim 4, characterized in that: Each of the segmented pile shoes further comprises: A plurality of pile punching nozzles are arranged at one end of the fixing shoe away from the pile leg, and the plurality of pile punching nozzles are arranged around the nail head, and each of the pile punching nozzles is used for spraying pile punching water respectively.

6. The offshore wind power installation platform according to claim 5, characterized in that: Each of the segmented pile shoes further comprises: A water flow and water pressure detector is arranged at one end of the fixing boot away from the pile leg, and the water flow and water pressure detector is electrically connected to the central control system, and is used to detect the flow rate and water pressure of the pile-punching water.

7. The offshore wind power installation platform according to claim 1, characterized in that: The main hull is a fully welded steel hull, and the middle part of the main hull is a double bottom.

8. The offshore wind power installation platform according to claim 1, characterized in that: The stern of the main hull is provided with an azimuth propeller, and the bow of the main hull is provided with a lateral propeller and a retractable propeller.

9. The offshore wind power installation platform according to claim 1, characterized in that: The lifting modules are electric rack and pinion lifting modules, and each of the lifting modules includes a multi-layer lifting unit.

10. The offshore wind power installation platform according to claim 1, characterized in that: Also includes: A main crane, wherein the main crane is arranged on the deck of the main hull; an auxiliary crane, wherein the auxiliary crane is arranged on the deck of the main hull; A living building, which is arranged on the deck of the main hull; a first deck crane, wherein the first deck crane is arranged at the bow of the main hull; A second deck crane is arranged at the stern of the main hull.

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