A motion suppression system for an offshore hydrogen production platform

Abstract

The present application belongs to the technical field of ocean engineering and system development, and specifically discloses a motion suppression system of an offshore hydrogen production platform. The system comprises a hydrogen production platform main body, a motion response suppression system, a vortex excitation suppression system and a hydrogen production equipment transfer system. The present application is provided with a bottom heaving plate system, which reduces the heaving motion amplitude of the platform and suppresses the pitching response of the platform. A sheet-type roll stabilization system is provided to suppress the rolling motion of the platform. A propulsion type motion suppression system is provided to achieve the suppression function of longitudinal and lateral rolling motion and horizontal displacement. A vortex reduction plate system is provided to suppress vortex excitation motion and achieve the suppression function of heaving motion. A thin layer cavity is provided to spray water in the opposite direction of the flow and adjust the water spray speed, change the flow state of the column, destroy the vortex excitation locking effect and reduce the vortex excitation motion characteristics. The hydrogen production equipment transfer system can realize the stable delivery of hydrogen storage containers to the transport ship.

Description

Technical Field

[0001] This invention relates to the technical field of marine engineering and system development, and in particular to a motion suppression system for an offshore hydrogen production platform. Background Technology

[0002] Currently, the global energy system is gradually transitioning from a traditional system dominated by fossil fuels to a more efficient, renewable, and low-carbon energy system. Offshore wind power and hydrogen production are among the most promising green energy sources for the future. Offshore wind power has attracted increasing attention due to its abundant and stable wind energy resources and high power generation utilization rate. However, issues such as offshore wind power integration and the long distances from power sources pose unprecedented challenges to its development. The current mainstream idea is to combine offshore wind power with hydrogen energy systems to form an offshore wind power hydrogen production method, thereby improving wind power integration, providing clean offshore energy, and achieving 100% clean power supply for offshore loads. Therefore, hydrogen production and storage technologies for deep-sea applications will become the most promising direction in the field of new green energy.

[0003] Offshore hydrogen production technology originated from the land-based hydrogen production field and is relatively mature. Since 2010, it has been used to conduct offshore hydrogen production projects using fixed platforms as the main body, achieving breakthrough progress. However, the application of fixed platforms is limited by water depth and cost, and cannot be applied to medium to high water depths. This land-based hydrogen production model is difficult to promote to the deep sea. Floating structures are highly adaptable to the deep sea and have withstood long-term engineering tests in the field of marine engineering. At present, there are not many engineering cases at home and abroad that use floating structures as carriers for offshore hydrogen production systems. The reason is that the marine environment in deep water areas is harsh. Floating structures will experience large amplitude and strong nonlinear violent shaking under the action of waves, which makes it impossible for offshore hydrogen production equipment to meet the operational requirements.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to solve the technical problems existing in the background art. To this end, a motion suppression system for offshore hydrogen production platforms is provided.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A motion suppression system for an offshore hydrogen production platform includes a hydrogen production platform body, a motion response suppression system, a vortex suppression system, and a hydrogen production equipment transfer system;

[0008] The main body of the hydrogen production platform includes 3 columns, 3 lower floating bodies, an upper box-shaped body, a wind turbine, and a main deck; the 3 columns, 3 lower floating bodies, and upper box-shaped body are connected to form a triangular platform mechanism, the main deck is fixedly set on the triangular platform mechanism, and the wind turbine is fixedly installed on the main deck;

[0009] The motion response suppression system includes a bottom heave plate system, a sheet-like anti-roll system, and a propulsion-type motion suppression system;

[0010] The bottom heave plate system includes a heave plate, a telescopic connecting rod, a turntable mechanism, and a heave signal receiving and processing system; the heave plate, telescopic connecting rod, and turntable mechanism are connected in sequence from bottom to top, and the turntable mechanism is rotatably installed at the bottom of the column;

[0011] The sheet-like anti-roll system includes multiple sheet-like anti-roll units and gear units; the sheet-like anti-roll units are rotatably mounted on the outside of the lower float via the gear units;

[0012] The propulsion motion suppression system includes 9 propellers and 2 control systems; the 9 propellers are installed on the bottom side of the lower buoy, and the 9 propellers include 6 adjustable pitch propellers that rotate in both directions and 3 ducted propellers that rotate around the vertical axis.

[0013] The vortex suppression system includes a thin-layer cavity and a vortex-reducing plate system;

[0014] The thin-layer cavity includes two water-blocking blocks, an outer plate of a column, and an external perforated plate; the two water-blocking blocks, the outer plate of the column, and the external perforated plate form a cavity area, the outer plate of the column is fixedly installed on the outside of the column, the external perforated plate is fixedly installed on the outside of the outer plate of the column, and the two water-blocking blocks are slidably installed between the external perforated plate and the outer plate of the column, with a gap between the two water-blocking blocks;

[0015] The anti-vortex plate system includes three sets of spiral plates, vertical slide rails, and a vortex sawtooth matrix. The vertical slide rails are installed on the outside of the outer perforated plate, the spiral plates are slidably installed on the vertical slide rails, and the vortex sawtooth matrix is ​​provided on the outside of the spiral plates.

[0016] The following is a further defined technical solution of the present invention: the bottom of the columns is fixedly connected to a lower floating body, and the top of the columns is fixedly connected to an upper box-shaped body.

[0017] The following is a further defined technical solution of the present invention: each column is provided with a bottom sway plate system. The sway plate is an elliptical sway plate. The ratio of the long side EL to the short side EB of the sway plate is between 1.2 and 1.6, and the ratio of the short side EB to the column diameter ED is between 1.1 and 1.3.

[0018] The following is a further defined technical solution of the present invention: multiple sheet-like anti-roll units are provided on the outer side of each lower float, and the sheet-like anti-roll system also includes a generator unit. The generator unit is fixedly installed inside the lower float, and the sheet-like anti-roll units are connected to the generator unit through a gear unit.

[0019] The following is a further defined technical solution of the present invention: the two control systems include one set of control programs for limiting pitch and roll motion and one set of control programs for limiting horizontal displacement.

[0020] The counter-rotating adjustable pitch propellers generate vertical upward or downward thrust. Six counter-rotating adjustable pitch propellers and a set of control programs for limiting pitch and roll motion constitute a propeller-type pitch and roll motion suppression system.

[0021] The ducted propellers rotating around the vertical axis generate horizontal thrust. Three ducted propellers rotating around the vertical axis and a set of horizontal displacement limiting control programs constitute a propeller-type horizontal displacement suppression system.

[0022] Each lower buoy is equipped with two counter-rotating controllable pitch propellers and one ducted propeller rotating around the vertical axis on its bottom side, with the ducted propeller rotating around the vertical axis positioned between the two counter-rotating controllable pitch propellers.

[0023] The following is a further defined technical solution of the present invention: a thin-layer cavity is provided on the outer side of each column, and the thin-layer cavity also includes a hydraulic cylinder system and a rotating mechanism. Each water-blocking block is connected to the rotating mechanism through the hydraulic cylinder system and the rotating mechanism, and the rotating mechanism is rotatably installed on the top of the column.

[0024] The hydraulic cylinder system includes a hydraulic cylinder and a connecting rod. One end of the connecting rod is connected to the water baffle, and the other end is hinged to the anti-slip device. One end of the hydraulic cylinder is hinged to the connecting rod, and the other end is hinged to the anti-slip device.

[0025] The anti-slip device slides on the slide rail of the rotating mechanism.

[0026] The following is a further defined technical solution of the present invention: a single set of spiral plates is composed of 2-5 spiral plate units, and the ratio of the sawtooth height a of the turbulent serration matrix to the width a1 of the spiral plate is between 0.6 and 1.2.

[0027] The following is a further defined technical solution of the present invention: the hydrogen production equipment transfer system includes a lifting platform, a lifting motor, a slide rail, a crawler system, an intelligent locking device for hydrogen storage containers, and a relative motion monitoring system;

[0028] The slide rail is fixedly installed on the side wall of the main body of the hydrogen production platform. The lifting platform and the slide rail are slidably connected in the vertical direction. The lifting platform is equipped with a track system.

[0029] The intelligent locking device for the hydrogen storage container is arranged at the four corners of the lifting platform. The intelligent locking device for the hydrogen storage container includes a locking device body, a locking hydraulic cylinder, and a buffer rubber. The hydraulic cylinder is connected to the locking device body, and the inner side of the locking device body is provided with a buffer rubber.

[0030] The intelligent locking device for the hydrogen storage container moves vertically and is embedded in the lifting platform, with its top flush with the bottom of the platform.

[0031] Compared with the prior art, the present invention has the following technical effects:

[0032] 1. The present invention is equipped with a bottom sway plate system. When the platform swaying motion is too large, the swaying motion amplitude and phase monitoring signals are fed back to the bottom sway plate system, driving the bottom sway plate system to move in the opposite direction, increasing the attached water mass of the platform, thereby reducing the swaying motion amplitude of the platform. At the same time, the system monitors the environmental direction of the platform and aligns the long side of the elliptical sway plate with the environmental direction, which can significantly suppress the platform's pitch response without affecting the sway plate's function of suppressing the platform's swaying motion.

[0033] 2. The present invention is equipped with a plate-shaped anti-sway system, which not only suppresses the swaying motion of the platform and effectively ensures the normal operation of the hydrogen production equipment, but also significantly extends the operating window of the hydrogen production equipment. At the same time, the plate-shaped anti-sway unit matrix is ​​connected to the gear in the lower floating body of the platform. The plate-shaped anti-sway unit matrix drives the gear to rotate and is connected to the generator unit, which can generate green energy and supply it to the hydrogen production equipment.

[0034] 3. The present invention is equipped with a propulsion motion suppression system. The motion monitoring system measures the low-frequency motion of the platform in terms of pitch and roll torque, direction, longitudinal direction, lateral direction and yaw direction. By distributing thrust, adjusting pitch, determining forward and reverse rotation, and adjusting horizontal thrust and angle of each propeller, the system can suppress pitch and roll motion and horizontal displacement.

[0035] 4. This invention incorporates a vortex-damping plate system, which consists of a matrix of helical plates that can move up and down on the outer surface of each column of the platform. These plates are arranged in a spiral pattern along the height of the columns, which can suppress vortex-induced motion to a certain extent. The motion monitoring system is connected to the helical plate matrix. When the heave motion exceeds the operating limits of the hydrogen production equipment, the heave suppression scheme is activated. The data acquisition and analysis terminal processes and corrects the data, then transmits the heave motion signal to the helical plate mechanism. The heave motion suppression function is achieved by driving the helical plates in reverse.

[0036] 5. The present invention is provided with a thin-layer cavity, which can spray water in the opposite direction to the incoming flow and adjust the water spray speed to change the flow velocity state of the column, destroy the vortex-induced locking effect, and reduce the vortex-induced motion characteristics.

[0037] 6. The present invention provides a hydrogen production equipment transfer system, which can smoothly deliver hydrogen storage containers to transport ships, avoiding the uncontrollable risks caused by the shaking between the platform, crane and container when lifted by a traditional crane.

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0041] Figure 2 This is a schematic diagram of the motion response suppression system in this invention;

[0042] Figure 3 yes Figure 2 Schematic diagram of the structure in direction A;

[0043] Figure 4 This is a schematic diagram of the sheet-like anti-sway system in this invention;

[0044] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure of BB;

[0045] Figure 6 yes Figure 4 Schematic diagram of the structure in the C-direction;

[0046] Figure 7 This is a schematic diagram of the propulsion motion suppression system in this invention;

[0047] Figure 8 This is a schematic diagram of the structure of the anti-vortex plate system in this invention;

[0048] Figure 9 This is a top view of the anti-vortex plate system in this invention;

[0049] Figure 10 yes Figure 9 Enlarged view of the structure of section D in the middle;

[0050] Figure 11 yes Figure 10 Enlarged view of the structure of section E in the middle;

[0051] Figure 12This is a top view of the thin-layer cavity structure in this invention;

[0052] Figure 13 yes Figure 12 Enlarged view of the structure of section F in the middle;

[0053] Figure 14 yes Figure 13 Enlarged view of the structure of the middle G section;

[0054] Figure 15 This is a schematic diagram of the hydrogen production equipment transfer system in this invention;

[0055] Figure 16 yes Figure 15 H-axis structural diagram.

[0056] Attached reference numerals: 1. Main body of hydrogen production platform; 1-1. Column; 1-2. Lower floating body; 1-3. Upper box-shaped body; 1-4. Wind turbine; 1-5. Main deck;

[0057] 2. Motion response inhibition system;

[0058] 2-1. Bottom sway plate system; 2-1.1. Sway plate; 2-1.2. Telescopic connecting rod; 2-1.3. Turntable mechanism;

[0059] 2-2, Plate-shaped anti-roll system; 2-2.1, Plate-shaped anti-roll unit; 2-2.2, Gear unit; 2-2.3, Generator unit;

[0060] 2-3. Propulsion-type motion suppression system; 2-3.1. Adjustable pitch propeller with forward and reverse rotation; 2-3.2. Tubular propeller rotating about the vertical axis;

[0061] 3. Vortex-induced suppression system;

[0062] 3-1. Anti-vortex plate system; 3-1.1. Spiral plate; 3-1.2. Vertical slide rail; 3-1.3. Turbulent vortex sawtooth matrix;

[0063] 3-2. Thin-layer cavity; 3-2.1. Water-blocking block; 3-2.2. Hydraulic cylinder system; 3-2.2.1. Connecting rod; 3-2.2.2. Anti-slip device; 3-2.3. Column outer plate; 3-2.4. External perforated plate; 3-2.5. Rotating mechanism;

[0064] 4. Hydrogen production equipment transfer system;

[0065] 4-1. Lifting platform;

[0066] 4-2. Lifting motor;

[0067] 4-3. Slide rail;

[0068] 4-4. Intelligent locking device for hydrogen storage container; 4-4.1. Locking device body; 4-4.2. Locking hydraulic cylinder; 4-4.3. Buffer rubber. Detailed Implementation

[0069] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0070] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0071] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0072] like Figure 1-16 As shown, a motion suppression system for an offshore hydrogen production platform is provided, which includes a hydrogen production platform body 1, a motion response suppression system 2, a vortex-induced suppression system 3, and a hydrogen production equipment transfer system 4.

[0073] like Figure 1As shown, the main body 1 of the hydrogen production platform includes three columns 1-1, three lower floating bodies 1-2, an upper box-shaped body 1-3, a wind turbine 1-4, and a main deck 1-5. The three columns 1-1, three lower floating bodies 1-2, and upper box-shaped body 1-3 are connected to form a triangular platform mechanism. Specifically, the three columns 1-1 are located at the three corners of the triangular platform mechanism. The lower floating bodies 1-2 are fixedly connected to the bottom of the columns 1-1, and the upper box-shaped body 1-3 is fixedly connected to the top of the columns 1-1. The main deck 1-5 is fixedly mounted on the triangular platform mechanism, and the wind turbine 1-4 is fixedly mounted on the main deck 1-5. The wind turbine 1-4 is used to generate electricity, which is then converted and used for hydrogen production at sea.

[0074] like Figure 2-7 As shown, the motion response suppression system 2 includes a bottom heave plate system 2-1, a sheet-like anti-sway system 2-2, and a propulsion motion suppression system 2-3.

[0075] like Figure 2-3 As shown, the bottom heave plate system 2-1 includes a heave plate 2-1.1, a telescopic connecting rod 2-1.2, a turntable mechanism 2-1.3, and a heave signal receiving and processing system. Each column 1-1 is equipped with a bottom heave plate system 2-1 at its bottom.

[0076] The heave plate 2-1.1, the telescopic connecting rod 2-1.2, and the turntable mechanism 2-1.3 are connected sequentially from bottom to top. The turntable mechanism 2-1.3 is rotatably mounted at the bottom of the column 1-1. The heave plate 2-1.1 is a movable elliptical heave plate 2-1.1, which is connected to the circular turntable mechanism 2-1.3 at the bottom of the column 1-1 via the telescopic connecting rod 2-1.2, enabling rotation. When the amplitude of the platform's heave motion does not exceed 2m, the heave plate 2-1.1 remains fixed without extension or retraction, at a distance of 0.2H-0.3H (H is the draft of column 1-1) from the bottom of column 1-1. When the amplitude of the platform's heave motion exceeds 2m, the amplitude and phase monitoring signals of the heave motion are fed back to the bottom heave plate system 2-1, driving the telescopic connecting rod 2-1.2 to move the bottom heave plate system 2-1 in the opposite direction, increasing the attached water mass of the platform, thereby reducing the amplitude of the platform's heave motion. The vertical movement range of the telescopic connecting rod 2-1.2 is preferably 0.05H-0.4H (H is the draft of column 1-1) from the bottom of column 1-1.

[0077] In addition, the system monitors the direction of waves affecting the platform and aligns the long side of the elliptical heave plate 2-1.1 with the environmental direction in real time by driving the turntable mechanism 2-1.3 to rotate, which can significantly suppress the platform's pitch response. The ratio of the long side EL to the short side EB of the elliptical heave plate 2-1.1 is controlled between 1.2 and 1.6, and the ratio of the short side EB to the diameter ED of the column 1-1 is controlled between 1.1 and 1.3, resulting in optimal pitch and heave suppression capabilities.

[0078] like Figure 4-6 As shown, the sheet-like anti-roll system 2-2 includes multiple sheet-like anti-roll units 2-2.1, gear units 2-2.2, and generator units 2-2.3. Multiple sheet-like anti-roll units 2-2.1 are provided on the outer side of each lower float 1-2. The sheet-like anti-roll units 2-2.1 are rotatably mounted on the outer side of the lower float 1-2 via gear units 2-2.3 are fixedly mounted inside the lower float 1-2. The sheet-like anti-roll units 2-2.1 are connected to the generator units 2-2.2 and 2-2.3 via a transmission connection.

[0079] The plate-shaped anti-roll unit 2-2.1 can rotate slightly around the equilibrium point. When the platform rolls, the plate-shaped anti-roll unit 2-2.1 resists the water, providing water damping, thereby reducing the amplitude of the platform's roll response and effectively ensuring the normal operation of the hydrogen production equipment, significantly extending the operating window of the hydrogen production equipment. In addition, during the platform's roll, a pressure difference exists between the upper and lower surfaces of the plate-shaped anti-roll unit 2-2.1, causing it to rotate around the equilibrium point. The plate-shaped anti-roll unit 2-2.1 is connected to the gear unit 2-2.2 inside the platform's lower float 1-2. The plate-shaped anti-roll unit 2-2.1 drives the gear to rotate, which is then connected to the generator unit 2-2.3 to generate green energy to supply the hydrogen production equipment.

[0080] like Figure 2 and 7 As shown, the propulsion-type motion suppression system 2-3 includes nine propellers and two control systems. The nine propellers are installed on the bottom side of the lower float 1-2, comprising six counter-rotating adjustable-pitch propellers 2-3.1 and three ducted propellers 2-3.2 rotating around a vertical axis. The counter-rotating adjustable-pitch propellers 2-3.1 generate vertical upward or downward thrust as required, while the ducted propellers 2-3.2 rotating around the vertical axis can generate thrust in the horizontal direction from 0 to 360 degrees. Each lower float 1-2 has two counter-rotating adjustable-pitch propellers 2-3.1 and one ducted propeller 2-3.2 rotating around a vertical axis installed on its bottom side, with the ducted propeller 2-3.2 positioned between the two counter-rotating adjustable-pitch propellers 2-3.1. The two control systems include one control program for limiting pitch and roll motion and one control program for limiting horizontal displacement.

[0081] A propeller-type pitch suppression system consists of six adjustable-pitch propellers rotating in both directions 2-3.1 and a control program for limiting pitch and roll motion. When the pitch angle is less than 1 degree, only the bottom heave plate system 2-1 is activated; when the roll angle is less than 2 degrees, only the plate-shaped roll damping system 2-2 is activated. When the pitch and roll angles exceed the above limits, the propeller-type motion suppression system 2-3 is activated. The motion monitoring system measures the pitch and roll torque and direction acting on the platform. By distributing thrust, adjusting pitch, and determining forward and reverse rotation for each propeller, the logic for suppressing pitch and roll motion is obtained, thereby achieving the function of suppressing pitch and roll motion.

[0082] A propeller-type horizontal displacement suppression system consists of three ducted propellers rotating around the vertical axis (2-3.2) and a control program for limiting horizontal displacement. The motion monitoring system measures the low-frequency motions of the platform in the longitudinal, lateral, and yaw directions and feeds them back to the control program. Through real-time optimization calculations of thrust distribution and angle adjustment for each propeller, the system obtains the low-frequency motion suppression logic, thereby achieving the horizontal displacement suppression function.

[0083] like Figure 8-14 As shown, the vortex-induced suppression system 3 includes a thin-layer cavity 3-2 and a vortex-reducing plate system 3-1.

[0084] like Figure 8-11 As shown, the anti-vortex plate system 3-1 includes three sets of spiral plates 3-1.1, a vertical slide rail 3-1.2, and a vortex sawtooth matrix 3-1.3. The vertical slide rail 3-1.2 is installed on the outside of the external perforated plate 3-2.4, and the spiral plates 3-1.1 are slidably installed on the vertical slide rail 3-1.2. The vortex sawtooth matrix 3-1.3 is provided on the outside of the spiral plates 3-1.1. A single set of spiral plates 3-1.1 consists of 2-5 spiral plate units, and the ratio of the sawtooth height a of the vortex sawtooth matrix 3-1.3 to the width a1 of the spiral plate 3-1.1 is between 0.6 and 1.2. The optimal coverage range for a single set of spiral plates 3-1.1 is 100 to 115 degrees. Each set consists of 2-5 spiral plate units. The optimal ratio of the serration height 'a' of the turbulent vortex sawtooth matrix 3-1.3 to the width 'a1' of the spiral plates 3-1.1 is between 0.6 and 1.2. When vortex-induced motion is significant, the spiral plates 3-1.1, arranged in a spiral shape around the outer surface, disrupt the regularity of vortex shedding. Simultaneously, the sawtooth structure of the turbulent vortex sawtooth matrix 3-1.3 further turbulentizes the tail flow field, effectively reducing vortex-induced motion. When the platform's heave exceeds 3 meters and affects the normal operation of the hydrogen production platform, a signal synchronized with the bottom heave plate 2-1.1 is used to slide along the vertical slide rail 3-1.2. The added mass is increased by utilizing the width of the spiral plates 3-1.1 and the sawtooth structure of the turbulent vortex sawtooth matrix 3-1.3, thus performing heave suppression.

[0085] like Figure 12-14As shown, the thin-layer cavity 3-2 includes two water-blocking blocks 3-2.1, a hydraulic cylinder system 3-2.2, an outer plate of the column 3-2.3, an external perforated plate 3-2.4, and a rotating mechanism 3-2.5. A thin-layer cavity 3-2 is provided on the outer side of each column 1-1.

[0086] Two water-blocking blocks 3-2.1, an outer plate 3-2.3 of the column, and an external perforation plate 3-2.4 enclose a cavity area. The outer plate 3-2.3 of the column is fixedly installed on the outside of the column 1-1, and the external perforation plate 3-2.4 is fixedly installed on the outside of the outer plate 3-2.3 of the column. Two water-blocking blocks 3-2.1 are provided in the outer perimeter area below the waterline of each column 1-1. The two water-blocking blocks 3-2.1 are slidably positioned between the external perforation plate 3-2.4 and the outer plate 3-2.3 of the column, with a gap between them. To achieve the sliding function of the water-blocking blocks 3-2.1, specifically, each water-blocking block 3-2.1 is connected to a rotating mechanism 3-2.5 via a hydraulic cylinder system 3-2.2. The rotating mechanism 3-2.5 is rotatably installed on the top of the column 1-1. The hydraulic cylinder system 3-2.2 includes a hydraulic cylinder and a connecting rod 3-2.2.1. One end of the connecting rod 3-2.2.1, P1, is connected to the water-blocking block 3-2.1, and the other end is hinged to the anti-slip device 3-2.2.2, allowing it to rotate around P2. One end of the hydraulic cylinder is hinged to the connecting rod 3-2.2.1, and the other end is hinged to the anti-slip device 3-2.2.2. The slot of the anti-slip device 3-2.2.2 slides on the slide rail of the rotating mechanism 3-2.5. When the hydraulic cylinder drives the water-blocking block 3-2.1, the slot locks onto the slide rail. Each hydraulic cylinder drives the water-blocking block 3-2.1 to adjust the angle of the cavity area enclosed by the two water-blocking plates from 60 degrees to 120 degrees. When the thin-layer cavity 3-2 needs to be adjusted according to the direction of external water flow, the entire cavity area can slide within a range of 0-360 degrees along the outer horizontal plane by driving the rotating mechanism 3-2.5. The outer plate 3-2.3 of the column and the outermost external perforated plate 3-2.4 of the column 1-1 are perforated, and the size of each hole is the same. The ratio of the total perforated area A to the area B of the outer plate is controlled at 0.6-0.9 for optimal water flow uniformity. Equipped with several high-power ballast pumps, based on the data analysis of the vortex-induced motion acquisition terminal, when the vortex-induced motion is detected to be obvious, the ballast pumps quickly inject water into the cavity, so that the water flows out along the holes on the outer side of the cavity. The direction of water spraying is opposite to the direction of incoming flow. By adjusting the water injection speed of the ballast pump, the water spraying speed of the cavity is adjusted, changing the flow velocity state of the column 1-1, destroying the vortex-induced locking effect, and effectively reducing the vortex-induced motion characteristics.

[0087] like Figure 15-16 As shown, the hydrogen production equipment transfer system 4 includes a lifting platform 4-1, a lifting motor 4-2, a slide rail 4-3, a track system, an intelligent locking device for hydrogen storage containers 4-4, and a relative motion monitoring system.

[0088] The slide rail 4-3 is fixedly installed on the side wall of the main body 1 of the hydrogen production platform. The lifting platform 4-1 and the slide rail 4-3 are slidably connected in the vertical direction. The lifting platform 4-1 is equipped with a track system. The intelligent locking device 4-4 for the hydrogen storage container is arranged at the four corners of the lifting platform 4-1. The intelligent locking device 4-4 for the hydrogen storage container includes a locking device body 4-4.1, a locking hydraulic cylinder 4-4.2, and a buffer rubber 4-4.3. The hydraulic cylinder is connected to the locking device body 4-4.1, and the buffer rubber 4-4.3 is provided on the inner side of the locking device body 4-4.1. The intelligent locking device 4-4 for the hydrogen storage container moves vertically and is embedded in the lifting platform 4-1. Its top is flush with the bottom of the lifting platform 4-1.

[0089] During the transfer of hydrogen storage containers, they are first transferred from the main deck 1-5 of the platform to the lifting platform 4-1, where they are locked by the intelligent locking device 4-4. Then, the lifting platform 4-1 is driven by the lifting motor 4-2 to descend to the appropriate position along the slide rail 4-3. The relative movement between the platform and the transport ship is monitored in real time. If the system determines that the movement response is within the safe range, the tracked system quickly sends the hydrogen storage container out of the lifting platform 4-1 and slides it into the transport ship, thus smoothly delivering the hydrogen storage container to the transport ship. This avoids the uncontrollable risks caused by the swaying between the platform, crane, and container when lifting with a traditional crane.

[0090] When the hydrogen storage container enters the lifting platform 4-1, the intelligent locking device 4-4 of the hydrogen storage container rises out from the lifting platform 4-1 and locks the hydrogen storage container by pushing it with a hydraulic cylinder. When the hydrogen storage container needs to be transferred out of the lifting platform 4-1, the intelligent locking device 4-4 of the hydrogen storage container is embedded in the bottom of the lifting platform 4-1, and the track system is activated to send the hydrogen storage container out.

[0091] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention's technical solution. Therefore, all equivalent changes made based on the shape, structure, and principle of the present invention without departing from the scope of the present invention's technical solution should be covered within the protection scope of the present invention.

Claims

1. A motion suppression system for an offshore hydrogen production platform, characterized in that, It includes the main body of the hydrogen production platform (1), the motion response suppression system (2), the vortex suppression system (3), and the hydrogen production equipment transfer system (4); The main body (1) of the hydrogen production platform includes 3 columns (1-1), 3 lower floating bodies (1-2), an upper box-shaped body (1-3), a wind turbine (1-4), and a main deck (1-5); the 3 columns (1-1), 3 lower floating bodies (1-2), and upper box-shaped body (1-3) are connected to form a triangular platform mechanism, the main deck (1-5) is fixedly installed on the triangular platform mechanism, and the wind turbine (1-4) is fixedly installed on the main deck (1-5); The motion response suppression system (2) includes a bottom heave plate system (2-1), a sheet-like anti-sway system (2-2), and a propulsion motion suppression system (2-3); The bottom heave plate system (2-1) includes a heave plate (2-1.1), a telescopic connecting rod (2-1.2), a turntable mechanism (2-1.3), and a heave signal receiving and processing system; the heave plate (2-1.1), the telescopic connecting rod (2-1.2), and the turntable mechanism (2-1.3) are connected sequentially from bottom to top, and the turntable mechanism (2-1.3) is rotatably mounted at the bottom of the column (1-1); The sheet-like anti-roll system (2-2) includes multiple sheet-like anti-roll units (2-2.1) and gear units (2-2.2); the sheet-like anti-roll units (2-2.1) are rotatably mounted on the outside of the lower float (1-2) via the gear units (2-2.2); The propulsion motion suppression system (2-3) includes 9 propellers and 2 control systems; the 9 propellers are installed on the bottom side of the lower float (1-2), and the 9 propellers include 6 adjustable pitch propellers that rotate in both directions (2-3.1) and 3 ducted propellers that rotate around the vertical axis (2-3.2); The vortex suppression system (3) includes a thin-layer cavity (3-2) and a vortex-reducing plate system (3-1); The thin-layer cavity (3-2) includes two water-blocking blocks (3-2.1), an outer plate of the column (3-2.3), and an external perforation plate (3-2.4); the two water-blocking blocks (3-2.1), the outer plate of the column (3-2.3), and the external perforation plate (3-2.4) form a cavity area. The outer plate of the column (3-2.3) is fixedly installed on the outside of the column (1-1), and the external perforation plate (3-2.4) is fixedly installed on the outside of the outer plate of the column (3-2.3). The two water-blocking blocks (3-2.1) are slidably disposed between the external perforation plate (3-2.4) and the outer plate of the column (3-2.3), and there is a gap between the two water-blocking blocks (3-2.1). The anti-vortex plate system (3-1) includes three sets of spiral plates (3-1.1), a vertical slide rail (3-1.2), and a vortex sawtooth matrix (3-1.3); the vertical slide rail (3-1.2) is installed on the outside of the external perforated plate (3-2.4), the spiral plates (3-1.1) are slidably installed on the vertical slide rail (3-1.2), and the vortex sawtooth matrix (3-1.3) is provided on the outside of the spiral plates (3-1.1); Each lower float (1-2) is provided with multiple sheet-like anti-roll units (2-2.1) on its outer side. The sheet-like anti-roll system (2-2) also includes a generator unit (2-2.3). The generator unit (2-2.3) is fixedly installed inside the lower float (1-2). The sheet-like anti-roll units (2-2.1) are connected to the generator unit (2-2.3) through a gear unit (2-2.2).

2. The motion suppression system for an offshore hydrogen production platform according to claim 1, characterized in that, The bottom of the columns (1-1) is fixedly connected to the lower float (1-2), and the top of the columns (1-1) is fixedly connected to the upper box-shaped body (1-3).

3. The motion suppression system for an offshore hydrogen production platform according to claim 1, characterized in that, Each column (1-1) is equipped with a bottom sway plate system (2-1) at its bottom, and the sway plate (2-1.1) is an elliptical sway plate (2-1.1).

4. The motion suppression system for an offshore hydrogen production platform according to claim 3, characterized in that, The ratio of the long side EL to the short side EB of the sway plate (2-1.1) is between 1.2 and 1.6, and the ratio of the short side EB to the diameter ED of the column (1-1) is between 1.1 and 1.

3.

5. The motion suppression system for an offshore hydrogen production platform according to claim 1, characterized in that, The two control systems include one control program for limiting pitch and roll motion and one control program for limiting horizontal displacement. The counter-rotating adjustable pitch propellers (2-3.1) generate vertical upward or downward thrust. The six counter-rotating adjustable pitch propellers (2-3.1) and a set of control programs for limiting pitch and roll motion constitute a propeller-type pitch and roll motion suppression system. The ducted propeller (2-3.2) rotating around the vertical axis generates horizontal thrust. The three ducted propellers (2-3.2) rotating around the vertical axis and a set of horizontal displacement limiting control programs constitute a propeller-type horizontal displacement suppression system. Each lower body (1-2) is equipped with two counter-rotating adjustable pitch propellers (2-3.1) and one ducted propeller (2-3.2) rotating about the vertical axis on its bottom side, with the ducted propeller (2-3.2) rotating about the vertical axis positioned between the two counter-rotating adjustable pitch propellers (2-3.1).

6. The motion suppression system for an offshore hydrogen production platform according to claim 1, characterized in that, Each column (1-1) is provided with a thin-layer cavity (3-2) on its outer side. The thin-layer cavity (3-2) also includes a hydraulic cylinder system (3-2.2) and a rotating mechanism (3-2.5). Each water-blocking block (3-2.1) is connected to the hydraulic cylinder system (3-2.2) and the rotating mechanism (3-2.5). The rotating mechanism (3-2.5) is rotatably mounted on the top of the column (1-1).

7. The motion suppression system for an offshore hydrogen production platform according to claim 6, characterized in that, The hydraulic cylinder system (3-2.2) includes a hydraulic cylinder and a connecting rod (3-2.2.1). One end of the connecting rod (3-2.2.1) is connected to the water baffle (3-2.1), and the other end is hinged to the anti-slip device (3-2.2.2). One end of the hydraulic cylinder is hinged to the connecting rod (3-2.2.1), and the other end is hinged to the anti-slip device (3-2.2.2). The slot of the anti-slip device (3-2.2.2) slides on the slide rail of the rotating mechanism (3-2.5).

8. The motion suppression system for an offshore hydrogen production platform according to claim 1, characterized in that, A single set of spiral plates (3-1.1) consists of 2-5 spiral plate units. The ratio of the sawtooth height a of the turbulent serration matrix (3-1.3) to the width a1 of the spiral plate (3-1.1) is between 0.6 and 1.

2.

9. The motion suppression system for an offshore hydrogen production platform according to claim 1, characterized in that, The hydrogen production equipment transfer system (4) includes a lifting platform (4-1), a lifting motor (4-2), a slide rail (4-3), a track system, a hydrogen storage container intelligent locking device (4-4), and a relative motion monitoring system; The slide rail (4-3) is fixedly installed on the side wall of the main body (1) of the hydrogen production platform. The lifting platform (4-1) and the slide rail (4-3) are slidably connected in the vertical direction. The lifting platform (4-1) is equipped with a track system. The intelligent locking device (4-4) of the hydrogen storage container is arranged at the four corners of the lifting platform (4-1). The intelligent locking device (4-4) of the hydrogen storage container includes a locking device body (4-4.1), a locking hydraulic cylinder (4-4.2), and a buffer rubber (4-4.3). The hydraulic cylinder is connected to the locking device body (4-4.1), and the buffer rubber (4-4.3) is provided on the inner side of the locking device body (4-4.1). The intelligent locking device (4-4) of the hydrogen storage container moves vertically and is embedded in the lifting platform (4-1), with its top flush with the bottom of the lifting platform (4-1).

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