Floating platform intelligent mooring system based on marine new energy supply and control method

Abstract

The invention discloses a floating platform intelligent mooring system based on marine new energy supply and a control method. Belongs to the field of marine mooring cables and mainly comprises a floating platform, monitoring buoys, anchor piles, anchor chains and tensioning mooring chains. The wave force can be counteracted through floating body drifting based on energy conservation and proper release of the anchor chain length, so that the anchor chain stress under the extreme working condition is reduced, the length of the mooring cable is adjusted and controlled in an intelligent mode under different wave working conditions, the platform mooring stability can be guaranteed, meanwhile, reasonable stress of the anchor chain under the extreme working condition is guaranteed, and the service life of the platform is prolonged. And the damage risk of anchor chain breakage is reduced. Besides, wave energy and light energy power generation modules are integrated on the monitoring buoy, ocean energy can be effectively utilized, the energy problem of deep and far sea platforms is solved, and the monitoring buoy is environmentally friendly.

Description

Technical Field

[0001] The present invention belongs to the field of marine mooring cables and relates to an intelligent mooring system and control method for a floating platform powered by marine new energy. Background Art

[0002] With the continuous development of marine engineering technology, the application of marine floating platforms in deep and far - sea areas has gradually increased. Such platforms are usually used for oil and gas extraction and the development of other marine resources. Due to the complex deep - sea environment, the mooring stability of marine floating platforms has become an important technical challenge. Although traditional mooring systems can maintain the stability of the platform, in extreme sea conditions, it is often difficult to effectively control the force on the anchor chain, which is likely to cause the anchor chain to break or the platform to become unstable. Therefore, how to optimize the mooring system of floating platforms, ensure the stability of the platform in various sea conditions, and reduce the failure rate of equipment has always been an important research topic in the field of marine engineering.

[0003] Existing mooring systems generally adopt the traditional method of combining anchor piles and anchor chains, relying on the fixed length of the anchor chain to limit the drift of the platform. However, when facing extreme sea conditions such as strong waves and winds, the force on the anchor chain is uneven in the traditional system, which is likely to cause damage to the chain or excessive drift of the platform. In response to this problem, some new intelligent mooring technologies have emerged. By real - time monitoring the sea conditions and the position of the floating platform, the length of the mooring cable is dynamically adjusted to better cope with different wave environments and wind conditions.

[0004] However, existing intelligent mooring systems rely on complex sensor networks and power supplies, which often face the problem of insufficient energy in the deep - sea environment. Deep - sea platforms are far from shore - based facilities, and power supply usually depends on traditional power grids or fuel power generation. However, these methods are not only costly but also have a certain negative impact on the environment. Therefore, how to effectively utilize marine resources, especially wave energy and light energy, to provide sustainable energy supply for deep - sea platforms has become a new research direction.

[0005] In addition, most existing intelligent mooring systems adopt a single energy supply mode without fully considering the integration of multi - energy systems. Multi - energy systems can provide more stable and efficient energy supply in extreme environments. Especially in remote sea areas, they can effectively reduce the dependence on traditional energy, lower operating costs, and improve the reliability and environmental friendliness of the system. Summary of the Invention

[0006] In view of the above problems, the object of the present invention is to propose an intelligent mooring system and control method for a floating platform powered by marine new energy.

[0007] The technical solution of the present invention is as follows: A floating platform intelligent mooring system based on marine new energy supply includes a floating platform, anchor piles and anchor chains. Both sides of the floating platform are connected to the anchor piles fixed on both sides of the seabed through the connected anchor chains.

[0008] Tension mooring chains are installed at the upper ends of both sides of the anchor piles. Monitoring buoys are installed at the upper ends of the tension mooring chains. The monitoring buoys are installed on the periphery of the floating platform and are connected to the anchor piles through the tension mooring chains.

[0009] Furthermore, the monitoring buoy includes a mooring base installed at the upper end of the tension mooring chain. A transmission shaft is installed at the upper end of the mooring base. A buoy is installed at the upper end of the transmission shaft.

[0010] The buoy includes a buoy floating body. A wave height monitor and a signal transmission module are respectively installed on both side edges of the upper part of the buoy floating body.

[0011] A solar power generation component is installed at the center of the top platform of the buoy floating body, between the wave height monitor and the signal transmission module.

[0012] A wave speed detector is installed on one side of the bottom of the buoy floating body.

[0013] Furthermore, a storage battery is also installed in the buoy floating body.

[0014] Furthermore, the mooring base includes a buoyancy base. A generator rotor and a generator stator are installed on the buoyancy base. The generator rotor and the generator stator are connected by a spherical sleeve groove, and the generator rotor is connected to the transmission shaft.

[0015] Furthermore, spring fixators are respectively installed on the peripheral side of the upper end of the mooring base. A buffer spring is installed between the two spring fixators on both sides. The buffer spring is fixed by the spring fixators and is fixedly connected to the transmission shaft.

[0016] Mooring chain connectors for connecting the tension mooring chains are respectively installed at both ends of the bottom side of the mooring base.

[0017] Furthermore, the buoyancy base is supported by high-strength buoyancy materials.

[0018] Furthermore, the floating platform includes a signal receiving module, a server, an anchor winch, a chain stopper, a chain guide and an anchor chain compartment which are connected to each other.

[0019] The chain guide is connected to the anchor pile through the anchor chain.

[0020] Furthermore, the signal receiving module is connected to the signal transmission module of the monitoring buoy through wireless signal transmission.

[0021] The server is used to process and send control information;

[0022] The windlass is powered by electricity and is used to actively retrieve and release the anchor chain;

[0023] The chain stopper is used to fasten the anchor chain and prevent it from sliding;

[0024] The chain guide is used to guide the anchor chain so that it slides along the sprocket of the chain guide;

[0025] The anchor chain locker is used to store and place the anchor chain.

[0026] Furthermore, for the control method of a floating platform intelligent mooring system based on marine new energy supply, the control process is as follows:

[0027] Step (1): The monitoring buoy detects the data of the sea surface wave traveling speed v and wave height h in real time, and wirelessly transmits the data to the signal transmitting module on the platform in real time;

[0028] Step (2): The signal transmitting module transmits the wave data to the server;

[0029] Step (3): The server determines whether v≤v1 and h≤h1; where v1 and h1 are the thresholds of the wave speed and wave height in the stable mooring state respectively, which are determined according to the actual project;

[0030] Step (4): Enter the active control condition and record the time t;

[0031] Step (5): The server determines whether v1<v<v2 or h1<h<h2; where v2 and h2 are the thresholds of the wave speed and wave height in the extremely harsh working conditions respectively, which are determined according to the actual project;

[0032] Step (6): The server calculates the average wave traveling speed va and average wave height ha within the T time period after the t moment;

[0033] Step (7): The server determines whether va≤v1 and ha≤h1.

[0034] Furthermore, the specific content of step (3) is:

[0035] (3.1) When v≤v1 and h≤h1, the chain stopper (14) is tightened to prevent the anchor chain from sliding, so that the platform is in a stable mooring state;

[0036] (3.2) When v≤v1 and h≤h1 are not satisfied, then enter step (4);

[0037] The specific content of step (5) is:

[0038] (5.1) When v1 < v < v2 or h1 < h < h2; the chain stopper is loosened, and the anchor chain slides freely along the sprocket, putting the platform in a passive mooring state; meanwhile, proceed to step (6);

[0039] (5.2) When v1 < v < v2 or h1 < h < h2 is not satisfied; the chain stopper is loosened, and the windlass releases the anchor chain in advance, allowing the anchor chain to slide into the water along the chain guide. The wave energy is consumed through the movement of the platform to protect the mooring cable from being damaged; meanwhile, proceed to step (6);

[0040] The specific content of the said step (7) is:

[0041] (7.1) When va ≤ v1 and ha ≤ h1, the windlass retrieves the anchor chain into the anchor chain locker until the length of the anchor chain is the length of the anchor chain in the stable mooring state, and fasten the chain stopper;

[0042] (7.2) When va ≤ v1 and ha ≤ h1 is not satisfied, the server sets t + T as the new t, and returns to step (6) for cycling.

[0043] The beneficial effects of the present invention are: 1. The present invention adjusts the length of the mooring cable in different wave conditions in an intelligent manner, which can ensure the stability of the platform mooring. At the same time, it ensures the reasonable force of the anchor chain under extreme conditions, reducing the risk of damage to the anchor chain breaking; 2. The present invention integrates wave energy and solar energy power generation modules on the monitoring buoy, which can effectively utilize marine energy, solve the energy problem of deep - sea platforms, and is environmentally friendly. Brief Description of the Drawings

[0044] Figure 1 is the schematic diagram of the overall structure composition of the present invention;

[0045] Figure 2 is the cross - sectional schematic diagram of the monitoring buoy in the present invention;

[0046] Figure 3 is the schematic diagram of the composition of the mooring system control components of the present invention;

[0047] Figure 4 is the control flow chart of the present invention;

[0048] In the figure: 1 is the floating platform; 11 is the signal receiving module, 12 is the server, 13 is the windlass, 14 is the chain stopper, 15 is the chain guide, 16 is the anchor chain locker;

[0049] 2 is the monitoring buoy, 20 is the buoy, 201 is the buoy floating body, 202 is the wave velocity detector, 203 is the wave height monitor, 204 is the solar power generation component, 205 is the signal transmitting module, 206 is the storage battery;

[0050] 21 is the transmission shaft,

[0051] 22 is the mooring base, 221 is the buoyancy base, 222 is the generator rotor, 223 is the generator stator, 224 is the buffer spring, 225 is the spring fixator, and 226 is the mooring chain connector;

[0052] 3 is the anchor pile, 4 is the anchor chain, and 5 is the tension mooring chain. Detailed implementation mode

[0053] The following further elaborates on the specific technical solutions of the present invention in combination with specific examples.

[0054] As shown in the figure, a floating platform intelligent mooring system based on marine new energy supply of the present invention mainly includes a floating platform 1, a monitoring buoy 2, an anchor pile 3, an anchor chain 4, a tension mooring chain 5, etc.;

[0055] Among them, the floating platform 1 is the target mooring platform in the entire mooring system, which is connected to the seabed anchor pile 3 through the anchor chain 4 to moor the floating platform 1. The monitoring buoy 2 is arranged on the periphery of the floating platform 1, mainly used to monitor the wave speed and wave height on the periphery of the floating platform 1, and generates electricity relying on wave and solar energy to provide energy for the system;

[0056] The monitoring buoy 2 is connected to the anchor pile 3 through the tension mooring chain 5 for tension mooring;

[0057] The anchor pile 3 is fixed on the seabed, and a driven pile foundation can be adopted but is not limited thereto.

[0058] As Figure 2 shown, the monitoring buoy 2 is mainly composed of a buoy 20, a transmission shaft 21, and a mooring base 22;

[0059] The main function of the buoy 20 is signal acquisition and transmission, and an energy capture mechanism;

[0060] The transmission shaft 21 is used to transmit the captured energy to the mooring base 22 and convert it into electric energy.

[0061] The buoy 20 includes a buoy floating body 201, a wave speed detector 202, a wave height monitor 203, a solar power generation component 204, a signal transmission module 205, and a storage battery 206;

[0062] Among them, the buoy floating body 201 is mainly used to provide an installation platform for the signal monitoring, signal transmission, and energy capture modules of the monitoring buoy 2, and serves as an important wave energy capture mechanism;

[0063] The wave speed monitor 202 is installed at the bottom of the buoy floating body 201 to continuously monitor the traveling speed of the waves;

[0064] The wave height monitor 203 is installed on the upper side edge of the buoy floating body 201 for real-time observation of the wave height of the waves;

[0065] The solar power generation module 204 is arranged on the top platform of the buoy floating body 201 to capture light energy and convert it into electrical energy for storage in the storage battery 206 to provide energy for the entire system;

[0066] The signal transmission module 205 is installed on the top of the buoy floating body 201 for real-time transmission of the monitored wave information to the signal receiving module 11 on the floating platform 1.

[0067] The mooring base 22 is mainly composed of a buoyancy base 221, a generator rotor 222, a generator stator 223, a buffer spring 224, a spring fixer 225, and a mooring chain connector 226;

[0068] Among them, the buoyancy base 221 provides an installation space for the modules of the mooring base. At the same time, the buoyancy base 221 is supported by high-strength buoyancy materials to ensure sufficient strength, and the overall density of the monitoring buoy 2 is much smaller than that of seawater to provide an effective tension force;

[0069] The generator rotor 222 and the generator stator 223 are connected by a spherical socket groove, so that the generator rotor 222 can rotate freely around the generator stator 223. At the same time, the generator rotor 222 is connected to the transmission shaft 21 to effectively capture the wave energy transmitted by the buoy 20 and the oscillation energy generated by the transmission shaft 21 itself under the impact of seawater;

[0070] The buffer spring 224 is fixed by the spring fixer 225 and fixedly connected to the transmission shaft 21 to effectively buffer energy and provide a restoring moment to ensure the effective operation of the power generation mechanism;

[0071] Among them, the spring fixer 225 is installed on the upper peripheral side of the buoyancy base 221 to provide an installation position for the buffer spring 224.

[0072] As Figures 3-4 shown, the main components of the entire intelligent system further include a signal transmission module 205, a signal receiving module 11, a server 12, an anchor winch 13, a chain stopper 14, a chain guide 15, an anchor chain locker 16, and an anchor pile 3;

[0073] Among them, the server 12 is used to process and issue control information;

[0074] The anchor winch 13 is powered by electricity and is used to actively take in and pay out the anchor chain 4;

[0075] The chain stopper 14 is used to fasten the anchor chain 4 to prevent the anchor chain 4 from sliding;

[0076] The chain guide 15 is used to guide the anchor chain 4 so that it slides along the sprocket of the chain guide 15;

[0077] The anchor chain locker 16 is used to store and place the anchor chain 4.

[0078] The control process of the whole system includes the following steps:

[0079] 1. The monitoring buoy 2 detects the data of the sea surface wave traveling speed v and wave height h in real time, and wirelessly transmits the data to the signal receiving module 11 on the platform in real time;

[0080] 2. The signal receiving module 11 transmits the wave data to the server 12;

[0081] 3. The server 12 determines whether v≤v1 and h≤h1; where v1 and h1 are the thresholds of the wave speed and wave height in the stable mooring state respectively, which are determined by the actual project;

[0082] 3.1. When v≤v1 and h≤h1, the chain stopper 14 is tightened to prohibit the anchor chain 4 from sliding, so that the platform is in a stable mooring state;

[0083] 3.2. When v≤v1 and h≤h1 are not satisfied, go to step 4;

[0084] 4. Enter the active control condition and record the time t;

[0085] 5. The server 12 determines whether v1<v<v2 or h1<h<h2; where v2 and h2 are the thresholds of the wave speed and wave height in the extremely severe working condition respectively, which are determined by the actual project;

[0086] 5.1. When v1<v<v2 or h1<h<h2; the chain stopper 14 is loosened, and the anchor chain 4 can slide freely along the anchor chain locker 16, so that the platform is in a passive mooring state; at the same time, go to step 6;

[0087] 5.2. When v1<v<v2 or h1<h<h2 are not satisfied; the chain stopper 14 is loosened, and the windlass 13 releases the anchor chain 4 in the anchor chain locker 16 in advance, so that the anchor chain 4 slides into the water along the chain guide 15, and the wave energy is consumed through the movement of the platform to protect the mooring cable from being damaged; at the same time, go to step 6;

[0088] 6. The server 12 calculates the average wave traveling speed va and average wave height ha within the T time period after the time t;

[0089] 7. The server 12 determines whether va≤v1 and ha≤h1;

[0090] 7.1. When va ≤ v1 and ha ≤ h1, the wildcat 13 slowly retrieves the anchor chain 4 into the chain locker 16 until the length of the anchor chain 4 is the length of the anchor chain 4 in the stable mooring state, and the chain stopper 14 is tightened.

[0091] 7.2. When va ≤ v1 and ha ≤ h1 is not satisfied, the server 12 sets t + T as the new t and returns to step 6 for cycling.

[0092] The basic principle of the present invention is as follows: 1. Based on the law of conservation of energy, by appropriately releasing the length of the anchor chain, the wave force can be offset by the drift of the floating body, thereby reducing the force on the anchor chain under extreme working conditions; 2. By monitoring wave information and combining intelligent control methods, free switching of the anchor chain control mode can be achieved; 3. Using the principle of magnetic induction line cutting power generation, based on the properties of waves, the wave mechanical energy can be captured and the energy can be converted into electrical energy to supply energy to the intelligent control system.

[0093] The present invention aims to optimize the mooring stability of the platform by reasonably adjusting the length of the anchor chain 4 and integrating the ocean energy power generation module, effectively solving the problem of energy supply for deep - sea platforms; not only improving the adaptability of the platform under different sea conditions, but also reducing the risk of damage to the anchor chain 4 while ensuring the safety and stability of the platform, and having strong environmental adaptability.

Claims

1. An intelligent mooring system for a floating platform powered by marine new energy, characterized in that It includes a floating platform (1), anchor piles (3) and anchor chains (4). The two sides of the floating platform (1) are connected to the anchor piles (3) fixed on both sides of the seabed through the connected anchor chains (4). Tension mooring chains (5) are installed at the upper ends of the anchor piles (3) on both sides. Monitoring buoys (2) are installed at the upper ends of the tension mooring chains (5). The monitoring buoys (2) are installed on the periphery of the floating platform (1) and are connected to the anchor piles (3) through the tension mooring chains (5).

2. The intelligent mooring system for a floating platform based on marine new energy supply according to claim 1, wherein The monitoring buoy (2) includes a mooring base (22) installed at the upper end of the tension mooring chain (5). A transmission shaft (21) is installed at the upper end of the mooring base (22). A buoy (20) is installed at the upper end of the transmission shaft (21). The buoy (20) includes a buoy floating body (201). A wave height monitor (203) and a signal transmission module (205) are respectively installed on both side edges of the upper part of the buoy floating body (201). A solar power generation component (204) is installed at the center of the top platform of the buoy floating body (201), between the wave height monitor (203) and the signal transmission module (205). A wave velocity detector (202) is installed on one side of the bottom of the buoy floating body (201).

3. The intelligent mooring system for a floating platform powered by marine new energy according to claim 2, wherein A storage battery (206) is also installed in the buoy floating body (201).

4. The intelligent mooring system for a floating platform powered by marine new energy according to claim 2, wherein, The mooring base (22) includes a buoyancy base (221). A generator rotor (222) and a generator stator (223) are installed on the buoyancy base (221). The generator rotor (222) and the generator stator (223) are connected by a spherical socket groove, and the generator rotor (222) is connected to the transmission shaft (21).

5. The intelligent mooring system for a floating platform powered by marine new energy according to claim 4, characterized in that, Spring fixators (225) are respectively installed on the peripheral side of the upper end of the mooring base (22). A buffer spring (224) is installed between the spring fixators (225) on both sides. The buffer spring (224) is fixed by the spring fixator (225) and is fixedly connected to the transmission shaft (21). Mooring chain connectors (226) for connecting the tension mooring chain (5) are respectively installed at both ends of the bottom side of the mooring base (22).

6. The intelligent mooring system for a floating platform based on marine new energy supply according to claim 4, wherein, The buoyancy base (221) is supported by high-strength buoyancy materials.

7. An intelligent mooring system for a floating platform powered by marine new energy according to claim 1, characterized in that The floating platform (1) includes a signal receiving module (11), a server (12), an anchor winch (13), a chain stopper (14), a chain guide (15) and an anchor chain compartment (16) which are connected to each other. The chain guide (15) is connected to the anchor pile (3) through the anchor chain (4).

8. A floating platform intelligent mooring system based on marine new energy supply according to claim 1, characterized in that The signal receiving module (11) is connected to the signal transmission module (205) of the monitoring buoy (2) through wireless signal transmission. The server (12) is used to process and send control information. The anchor winch (13) is powered by electricity and is used to actively take in and release the anchor chain (4). The chain stopper (14) is used to fasten the anchor chain (4) and prevent the anchor chain (4) from sliding. The chain guide (15) is used to guide the anchor chain (4) to slide along the sprocket of the chain guide (15); The anchor chain locker (16) is used to store and place the anchor chain (4).

9. The control method of a floating platform intelligent mooring system powered by marine new energy according to any one of claims 1-8, characterized in that, The control process is as follows: Step (1): The monitoring buoy (2) detects the data of the sea surface wave traveling speed v and wave height h in real time, and wirelessly transmits the data to the signal transmitting module (11) on the platform in real time; Step (2): The signal transmitting module (11) transmits the wave data to the server (12); Step (3): The server (12) determines whether v≤v1 and h≤h1; where v1 and h1 are the thresholds of the wave speed and wave height in the stable mooring state respectively, which are determined by the actual project; Step (4): Enter the active control condition and record the time t; Step (5): The server (12) determines whether v1<v<v2 or h1<h<h2; where v2 and h2 are the thresholds of the wave speed and wave height in the extremely severe working condition respectively, which are determined by the actual project; Step (6): The server (12) calculates the average wave traveling speed va and average wave height ha within the T time period after the t moment; Step (7): The server (12) determines whether va≤v1 and ha≤h1.

10. The control method of a floating platform intelligent mooring system based on marine new energy supply according to claim 9, characterized in that, The specific content of the said step (3) is: (3.1) When v≤v1 and h≤h1, the chain stopper (14) is tightened to prohibit the anchor chain (4) from sliding, so that the platform is in a stable mooring state; (3.2) When v≤v1 and h≤h1 are not satisfied, go to step (4); The specific content of the said step (5) is: (5.1) When v1<v<v2 or h1<h<h2; the chain stopper (14) is loosened, and the anchor chain (4) slides freely along the sprocket, so that the platform is in a passive mooring state; at the same time, enter step (6); (5.2) When v1<v<v2 or h1<h<h2 are not satisfied; the chain stopper (14) is loosened, and the anchor winch (13) releases the anchor chain (4) in advance, so that the anchor chain (4) slides into the water along the chain guide (15), and the wave energy is consumed through the movement of the platform to protect the mooring cable from being damaged; at the same time, enter step (6); The specific content of the said step (7) is: (7.1) When va≤v1 and ha≤h1, the anchor winch (13) retrieves the anchor chain (4) into the anchor chain locker (16) until the length of the anchor chain (4) is the anchor chain length in the stable mooring state, and the chain stopper (14) is tightened; (7.2) When va≤v1 and ha≤h1 are not satisfied, the server (12) sets t+T as the new t and returns to step (6) for cycling.

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