47 results about "Marine technology" patented technology

The invention discloses a marine ranching shore-based monitoring system which belongs to the field of marine technology. The marine ranching shore-based monitoring system comprises a shore-based control system, a seabed observing platform, a monitoring control center and a submarine cable. Sensor data and a seabed real-time video are integrated through the seabed observing platform and are transmitted to the shore-based control system through a cable. The shore-based control system transmits data to the monitoring control center. The instruction of the monitoring control center is successively transmitted to the shore-based control system and the seabed observing platform for realizing remote control. According to the marine ranching shore-based monitoring system, a problem of integrating energy supply and data transmission in an underwater system is settled through designing the seabed observing platform and arranging the submarine communication cable. The marine ranching shore-based monitoring system realizes long-term real-time online stable and automatic monitoring on marine essential factors such as ecological environment.

The invention relates to a dynamic positioning thrust system for an all direction propeller and a lifting rudder, which belongs to dynamic positioning technical equipment in the field of ship marine technology. The dynamic positioning thrust system comprises the all direction propeller and the lifting rudder. The all direction propeller is arranged below the stern part of a ship, and a C1 axial line thereof vertically intersects with a longitudinal symmetric axis of the ship; and the lifting rudder is arranged below the bow part of the ship, and a C2 axial line thereof vertically intersects with the longitudinal symmetric axis of the ship. In an abyssal environment, when the ship is in the executive process of performing dynamic positioning, the lifting rudder and the all direction propeller cooperate together to finish tasks of overcoming surging, swaying and yawing of the ship; and under a control instruction of a control system, the all direction propeller and the lifting rudder are controlled to implement thrust executive function of the dynamic positioning according to the established proposal. The technology of the invention can be applied to large size, medium size and small size ships or semi-submersible ocean platform, has a positive significance on improving the dynamic positioning technology, and can produce obvious economic benefit.

The invention, which belongs to the field of the marine technology, discloses a lifting device type testing method and a realization system thereof. The method comprises: an upper latch and a lower latch are inserted into latch holes of a pile leg; hydraulic oil is provided for a lifting cylinder, and the lifting cylinder is controlled to make extension motion until the oil pressure of the hydraulic oil reaches a maximum load value of the lifting cylinder; hydraulic oil is provided for the lifting cylinder, and the lifting cylinder is controlled to make contraction motion until the oil pressure of the hydraulic oil reaches the maximum load value of the lifting cylinder; and whether the upper latch, the lower latch, an upper ring beam, and a lower ring beam are damaged is checked. According to the invention, the upper latch and the lower latch are limited by the latch holes, so that the lifting cylinder can reach a set pressure. Therefore, simulation of the extra large load on the actual work condition can be realized, thereby completing the type testing of the lifting device.

The invention belongs to the field of marine technologies, and particularly relates to an integrated electrochemical hydraulic buoyancy adjusting device used for an underwater vehicle. The integrated electrochemical hydraulic buoyancy adjusting device comprises a water-discharging cavity shell, a hydraulic cylinder shell, an oil tank shell and an end cover shell, the water-discharging cavity shell is connected with the hydraulic cylinder shell which is connected with the oil tank shell, and the oil tank shell is connected with the end cover shell. The integrated electrochemical hydraulic buoyancy adjusting device used for the underwater vehicle can solve the problems that the adjusting quantity of an existing buoyancy adjusting device is difficult to measure and control, and control precision is insufficient.

A method for manufacturing a deep-sea watertight cable belongs to the technical field of design and manufacture for the watertight cable structure in the field of marine technology, comprising eight process steps: the manufacture of conductive core wire cabling, the manufacture of refining films, the rubber slices, the manufacture of cable core sheaths, the die preheating, the coating of release agent, the core cable die filling and the installation and vulcanization; the invention designs a molding jacket vulcanization deep-sea watertight cable which is characterized by sea-water corrosion resistance, deep-sea pressure resistance, high-voltage resistance, and high electrical insulation in a deep-sea environment.

The present invention relates to the marine technology field and relates to a method for processing ballast water by microwave on boat. The method adopts the microwave processing to avoid the denizen inbreaking problem caused by the displacement of the ballast water. In the present invention, the device for processing ballast water by microwave is directly embedded into the existing pipeline of ballast water loading system on boat, and the device for processing ballast water is connected with two ends of the existing pipeline of ballast water loading system by interfaces; when the boad is loaded with ballast water, the ballast water is guided into the reaction chamber through the entrance pipeline, and the divided flow of the ballast water is guided into the ballast water processing pipeline positioned in the microwave field; the ballast water after microwave processing is finally guided into the ballast compartment through the outlet pipeline, wherein the phytoplankton, zooplankton, bacteria and spore obtained in the ballast water is killed rapidly. The method for processing ballast water of the present invention is simple and practical, and can be widely popularized.

The invention provides a liquefied natural gas transport ship and a liquefied natural gas transport system, and relates to the technical field of oceans. The ship body comprises a double-layer bottomplate, a double-board side plate and a single-layer main deck; the double-layer bottom plate comprises a ship bottom outer plate, a ship bottom inner plate and a ship bottom rib plate; the double-board side plate comprises a board side outer plate, a board side inner plate and a board side reinforcing frame plate; the single-layer main deck comprises a deck body and a deck reinforcing structure; the ship bottom inner plate, the broad side inner plate and the deck body form a liquid tank cabin in a surrounding mode, and the deck reinforcing structure is arranged on the outer side face of the deck body. The liquefied natural gas transport system comprises the ship. The technical problems that in the prior art, the capacity of a ship body structure cabin of an LNT A-BOX type liquefied gas ship is small, the overall weight of the ship body is heavy, the top in the cabin is low, the laying of a secondary screen wall and the construction process of a supporting structure are difficult, the period is long, the cost is high, and the maintenance difficulty in the cabin is large are solved.

The invention belongs to the fields of physical ocean, ocean technology, underwater acoustic engineering and the like, and particularly relates to an ocean front reconstruction method based on K-means algorithm iterative hierarchical clustering of sound velocity profiles, and the method uses the K-means algorithm to perform hierarchical clustering on the sound velocity profiles of an ocean front sea area according to a hierarchical principle. Compared with other clustering algorithms, the method is simple in thought, high in convergence speed, good in clustering effect and capable of meeting the clustering requirement when a large number of sound velocity profiles exist in the ocean front sea area. And the accuracy of the clustering result can be verified through the calculation of the sound propagation loss, and the iterative optimization is provided for the hierarchy according to the error threshold until all the hierarchical clustering results meet an allowable error threshold, and finally the ocean front reconstruction based on K-means algorithm iterative hierarchical clustering of sound velocity profiles is realized.

The invention belongs to the technical field of ocean, and provides an ecological breakwater compounded by submerged breakwater and square hole grid artificial fish reef. The ecological breakwater comprises a riprap foundation bed, an artificial coral reef protection bottom, a submerged breakwater, a square hole grid artificial fish reef and joint columns, wherein the submerged breakwater is arranged at the top of the riprap foundation bed, the square hole grid artificial fish reef is arranged on the outer side of the submerged breakwater, and the node columns are arranged between the submerged breakwater and the square hole grid artificial fish reef. According to the ecological breakwater, the square-hole grid artificial fish reef is arranged along the marginal quay direction, the square-hole grid empty box cover surface formed by the square-hole grid artificial fish reef interacts with waves to dissipate wave energy and protect the internal submerged dike, meanwhile, the porous structure of the hollow curved surface has a large surface area to provide more inhabiting space for organisms, and also has good water permeability, so that internal and external water exchange can be enhanced.

The invention belongs to the fields of green marine technology and ocean renewable energy comprehensive utilization and relates to a wave power generation device for a triple-hulled vessel. The wave power generation device comprises a swing plate, a swing shaft, a return torsional spring, a gear transmission device, a ratchet wheel mechanism and an electromagnetic power generator, wherein the swing plate is divided into two parts, i.e., a long and narrow connection section, and a wave-facing area occupying most of area, the connection section is in key joint with the swing shaft, and the return torsional spring is arranged on the swing shaft; and a gear transmission mechanism comprises a bevel gear mechanism and a three-stage acceleration gear mechanism, the tail end of the swing shaft is connected with the bevel gear mechanism, the rotating direction of the swing shaft is changed by the bevel gear mechanism, and then the slow rotating speed of the swing shaft is increased to the rotating speed needed by the electromagnetic power generator via the three-stage acceleration gear mechanism, and the ratchet wheel mechanism is arranged at the output shaft of the three-stage acceleration gear mechanism. The invention also provides an arrangement mode of the device aforementioned. The wave power generation device and the arrangement mode of the device disclosed by the invention are suitable for the triple-hulled vessel, and capable of utilizing seawave energy to the greatest extent.

The invention discloses an intelligent monitoring unmanned ship, which solves the problem that an existing monitoring mode is not flexible enough, time and labor consuming, low in monitoring efficiency and low in safety. The unmanned ship is used for replacing workers to reach a monitored sea area, multiple sea areas can be monitored, the monitored sea area is enlarged, and the collection route and time can be guaranteed at the same time; a weather detection module and a hydrological information acquisition module can be used for acquiring multidirectional marine hydrometeorology, so that therichness and accuracy of data are guaranteed; a wharf terminal is used for converting the received marine hydrometeorological data into a detailed chart, detailed navigation aiding information is provided for ships, naval vessels and submarines, deep sea-oriented marine monitoring is met, and data support is provided for development of marine technical equipment, naval construction and marine disaster prevention and reduction early warning.

The invention relates to the technical field of optical fiber sensing and ocean, in particular to a device and method for simultaneously picking up self-vibration signals of an underwater platform and external sound signals, and the device comprises a light source light transmitting module, a link module, a sensing module and a modulation-demodulation module; picking of the self-vibration signals of the underwater platform and the external sound signals is integrated into a set of optical fiber phase type sensing device, and through installation design and an anti-interference signal extraction method, link optical fibers are ingeniously utilized to load platform self-vibration signals, so that the problem that a plurality of sensors are needed for sensing a plurality of parameters is solved; and meanwhile, the two signals are extracted by adopting an optical coherence detection mode, so that the device has the advantages of high sensitivity, small size, light weight, electromagnetic interference resistance and the like, and has good adaptability to a miniaturized underwater platform.

The invention discloses a connection system applied to a hybrid vertical profiler and belongs to the field of ocean technical engineering, and comprises a connection base station which is fixed at theseabed and is in communication connection with a seabed observation network, and the connection base station is provided with a guide mechanism which is arranged at the top of the connection base station and is used for guiding the hybrid vertical profiler to perform connection in the vertical direction; a limiting mechanism which adapts to the head of the hybrid vertical profiler and is providedwith a triggering mechanism for triggering the locking mechanism and a wireless electric energy / signal transmitting unit; a locking mechanism which is used for locking the hybrid vertical profiler, the hybrid vertical profiler is provided with a wireless electric energy / signal receiving unit which is used for being in butt joint with the wireless electric energy / signal transmitting unit to complete charging and signal transmission. The connection base station is fixed to the seabed and conducts connection in the vertical direction on the hybrid vertical profiler moving in the vertical reciprocating profile, and after connection succeeds, the connection base station conducts underwater wireless power supply and wireless data transmission on the vertical profiler.

The invention belongs to the technical field of oceans, and relates to an improved wave test wave absorbing facility and a performance test device and method thereof. The improved wave test wave absorbing facility comprises a vertical wave absorbing facility arranged on the rear side of the wave maker and a slope type wave absorbing facility located at the tail end of the wave water tank or the wave water pool, and the performance test device comprises the improved wave test wave absorbing facility, a wave height meter, a wave height data collection system and the wave water tank. The improvedwave test wave absorbing facility and the performance test device thereof have the advantages of being flexible in installation, easy to operate, low in manufacturing cost, firm and durable in structure, good in wave absorbing effect and the like, and materials are easy to obtain.

The invention discloses a marine rescue system in the field of marine technology. The system comprises an annular airbag with two ends fixed to the rescue mother ship and the rescued ship respectively, and a winch mounted on the rescue mother ship, A cable wound around the winch is pierced into the cavity of the annular air bag, During the winch unwinding process, the safety protection rope at theend of the rope passes through the cavity of the annular airbag to reach the rescued ship and fix the trapped persons. During the winch unwinding process, the safety protection rope at the end of therope lifts the trapped persons through the cavity of the annular airbag to the rescue mother ship to complete the rescue. As that annular airbag is use for providing support and protection, the invention combine with the winch lifting method to carry out the safety rescue of the trapped person at sea, the invention has the advantages of high safety, low cost and easy implementation.

The invention relates to a man-powered double-propelling boat and belongs to the field of marine technology. The man-powered double-propelling boat comprises a boat body, a left man-powered device, a right man-powered device, a left propeller and a right propeller. The left man-powered device and the right man-powered device are symmetrically installed in structure. The right man-powered device comprises a power input device and a power transmitting device. Power of the right man-powered device is transmitted to the right propeller through the power transmitting device. The power transmitting device comprises a gear set, and further comprises a synchronous belt transmitting device or a chain transmitting device. The left propeller and the right propeller are of the same structure and are symmetrically installed on the left side and the right side of the boat body. The right propeller comprises a main shaft, a rotary disc, an annular flat plate blade, a traction rod, a positioning rod and a shell. The left propeller and the right propeller are connected with the left man-powered device and the right man-powered device respectively. The left man-powered device and the right man-powered device are independently operated. The movement effects similar to rapid opening and opposite flapping of insects can be generated through work of the left propeller and the right propeller. The boat is small in energy loss, high in efficiency and flexible, and the blades are easy to manufacture.

The invention relates to the technical field of marine technology and navigation, and particularly provides a grid equiangular air line applicable to polar navigation and a design method thereof. Thegrid equiangular air line is defined as a curve intersecting with all grid heading reference lines to form fixed included angles on the ellipsoid face of the globe. The invention provides a specific air line equation and grid heading angle calculating method. The air line voyage is short, grid heading angles on the air line are equal, the air line is shown as a straight line on a polar spherical projection drawing, the air line can be strictly applied in cooperation with the grid navigation method and polar spherical projection and is more suitable for polar navigation.

The invention belongs to the field of marine technical equipment, and particularly relates to an automatic floating device of an underwater robot and a method for controlling the automatic floating device. The method includes that faults such as water leakage can possibly occur due to complexity of work environments of the underwater robot, the underwater robot urgently needs to float out of water surfaces, water leakage signals can be detected by a water leakage sensor inside the underwater robot at the moment, and can be transmitted to a central controller, signals can be transmitted to an igniter after the signals are processed and judged by the central controller, the igniter can be activated and carries out ignition to initiate chemical reaction, a large quantity of gas can be generated instantly, is filtered by a filter and then flows into a gas bag, a gas bag cover can be flicked after the gas bag is quickly expanded, the gas bag is immediately unfolded right above the underwater robot, the volume and buoyancy of the underwater robot are increased after the gas bag is unfolded, and the underwater robot can ultimately float out of the water surfaces under the effect of net buoyancy, can be timely found by staffs under the assisting effect of a GPS (global positioning system) positioner and can be recovered. The automatic floating device and the method have the advantages that the automatic floating device is simple in structure and can work reliably, and the response capacity of the underwater robot under special conditions can be greatly improved.

The invention provides an ocean wave energy and solar energy combined power generation system, and belongs to the technical field of ocean. The ocean wave energy and solar energy combined power generation system comprises a wave energy power generation assembly arranged around an island, a solar power generation assembly erected on the island, a direct current grid-connected module, an energy storage module and an inverter module. The wave power generation assembly and the solar power generation assembly are connected with the input end of the direct-current grid-connected module, the output end of the direct-current grid-connected module is connected with the energy storage module, and the energy storage module is connected with a power grid through the inverter module. According to the ocean wave energy and solar energy combined power generation system, multi-energy complementary power generation and diversified electric energy output under the ocean environment are achieved, and the power generation efficiency is higher compared with single power generation.

The invention discloses an underwater three-dimensional temperature-salinity parallel forecasting method based on a LightGBM model, and relates to the technical field of ocean. The method comprises the following steps: carrying out data preprocessing on obtained sea surface temperature historical data, sea surface height historical data and Argo buoy historical data; and after a sea surface temperature abnormal value, a sea surface height abnormal value and an Argo buoy abnormal value which are uniform in temporal-spatial resolution are obtained through screening, constructing a training data set, and performing parallel training based on the LightGBM model to obtain an underwater three-dimensional temperature-salinity forecasting model for underwater three-dimensional temperature-salinity forecasting. The method fully utilizes rich sea surface satellite data, and realizes analysis and forecasting of the underwater three-dimensional temperature-salinity information through a parallel algorithm, so that the forecasting precision of the three-dimensional temperature-salinity information is guaranteed, the forecasting efficiency is remarkably improved, and the limitation of inversion of the underwater three-dimensional temperature-salinity information in dynamics and statistics is broken through.

The invention discloses an ocean pile foundation corrosion protection device and a using method thereof. The device can be used in the field of ocean technical engineering. The device comprises a split cylinder, a bolt, low-volatility oil and a rubber sealing strip. Due to the protection effect of the split cylinder and the low-volatility oil and the existence of the pressure head, seawater cannot be in contact with the pile foundation; besides, when the pile foundation has defects, low-volatility oil in the split cylinder enters the pile foundation through the defects in concrete under the action of the pressure head to be in contact with the reinforcing steel bars, a layer of oil film is formed around the reinforcing steel bars, seawater is prevented from entering the pile foundation through holes of the concrete to corrode the reinforcing steel bars in the mode, the service life of the reinforcing steel bars is prolonged, and the service life of the pile foundation is prolonged. And the anti-corrosion performance of the pile foundation is improved.

The invention relates to an underwater acoustic target positioning and tracking method based on the networking technology of wave gliders, belonging to the field of marine technology. Equipped with satellite communication module, attitude indicator and compass. A single node is connected to the centralized control center through satellite broadband communication. Multiple nodes realize remote real-time networking and transmit single-point acquisition signals back to the centralized control center. The centralized control center integrates signals from multiple nodes to preliminarily estimate the underwater acoustic target position. When the number of valid nodes is not enough to estimate the target position, the centralized control center plans the running trajectories of other wave gliders near the valid nodes to cover the target area, thereby increasing the number of valid nodes for target detection. Using the preliminary estimated underwater acoustic target position as the observed value of the target position, and combining the target motion equation to estimate the target current position as the final output, the accurate positioning and tracking of the underwater acoustic target can be realized.

The invention belongs to the technical field of oceans, and provides an assembly type permeable breakwater which comprises a plurality of prefabricated blocks. The precast blocks are arranged in a placement mode according to engineering water permeability and sand blocking requirements. The assembly type permeable breakwater has the beneficial effects that 1), waves are prevented from entering a harbor, the wave height behind the harbor can be reduced, and the stable water surface in the harbor is guaranteed; 2), silt is prevented or reduced from entering the harbor, siltation in the harbor isreduced, and enough water depth in the harbor is guaranteed; 3), exchange of water quality inside and outside the harbor is allowed, and ecological environment friendliness is realized; 4), the structure is prefabricated, the engineering cost is low, and investment is saved; 5), installation is convenient, and safety and time conservation are realized; 6), disassembly and maintenance are easy; and 7), the assembly type permeable breakwater is suitable for various geological environments and water depth conditions.

The invention provides an automatic feeding system for a whole kelp processing assembly line, and belongs to the technical field of modern oceans. The designed turner solves the problem that feeding of a next kelp is affected by a previous kelp, meanwhile, the two symmetrical turning clamping devices enable the procedure that an operator places the kelp on the turning device and the procedure that the feeding clamping mechanism clamps the kelp to be carried out in parallel, and therefore the time of the feeding process is effectively shortened. The feeding device can work in parallel with the turning device, the production efficiency is improved, and the working procedures of lifting, position alignment, clamping judgment, hand loosening and the like are achieved instead of manual work. According to the structural characteristics of kelp roots, the positioning mechanism achieves rapid kelp positioning, operation is easy and convenient, the feeding specification is uniform, the labor intensity of operators is effectively reduced, the feeding efficiency is improved, the alignment position can be flexibly and conveniently adjusted according to the requirements of an assembly line, cutting and the like, the requirement for large-scale and standardized kelp production is met, and the production efficiency is improved. The method is suitable for large-scale popularization and application.

The invention relates to the technical field of ships, in particular to a ship anti-rolling device suitable for large ships. The anti-rolling device is provided with one or more buffer energy-absorbing mechanisms on both sides of the hull, through which the buffer energy-absorbing mechanism can effectively buffer, absorb, and transform the lateral force of waves on one side of the hull, reducing the transverse force of the ship. Shake, keep the ship sailing smoothly, and help to increase the deadweight tonnage of the ship and improve the safety of the ship.

The invention discloses a method for detecting vortex penetrating spring layers based on a vorticity positive value, and belongs to the technical field of oceans. The method comprises the following steps: (1) selecting a three-dimensional calculation region according to a vortex influence area, and establishing a discrete grid; (2) calculating a horizontal average vorticity value of the selected area by using a corresponding formula; (3) drawing a vorticity positive value horizontal average vertical profile according to a time sequence; (4) finally, calculating the average buoyancy frequency vertical profile of the selected area, and judging whether the vortex upwelling can penetrate through the spring layer or not by combining the average buoyancy frequency vertical profile and the vorticity positive value horizontal average vertical profile. According to the method, the three-dimensional calculation area is selected, the vorticity positive value can be accurately calculated, whetherthe upwelling can penetrate through the skip layer or not is judged through the vorticity positive value horizontal average vertical profile and the average buoyancy frequency vertical profile, and the method is accurate and visual.

The invention discloses a measuring apparatus and method for the inclination angle of a jacket platform, which belongs to the field of marine technology. The measuring apparatus for the inclination angle of the jacket platform comprises a top disc, a hemispherical shell and a suspension cable, wherein the top disc is a cylinder, the lower surface of the top disc is fixedly connected with a three-legged support with a downward apex which is located on a central vertical line of the top disc, one end of the suspension cable is fixedly connected with the apex of the three-legged support, the other end of the suspension cable is connected with a suspension bracket in fixed connection with the hemispherical shell, the interior surface of the hemispherical shell is marked with latitude and longitude, and a laser transmitter is arranged at the circle center of the lower surface of the top disc. The measuring apparatus provided by the invention has the beneficial effects of capacity of faster and more accurate measurement of the inclination angle of an offshore jacket platform, low price, convenience in installation, accuracy in inspection, simple structure and good universality.

The invention discloses an external pressure resistant cabin structure and a preparation method thereof, and belongs to the technical field of ocean, the external pressure resistant cabin structure comprises a shell, the circumferential surfaces of the two sides of the shell are fixedly connected with an outer side joint and an inner side joint through joint fasteners, and one end of the outer side joint is fixedly connected with a blanking cap and the outer side joint through a blanking cap fastener; two sealing rings are installed at one end of the inner side connector, the sealing rings are tightly attached to the shell and the blocking cover respectively, and the annular rib is installed in the shell through the assembly fixture. The safety performance and the pressure resistance of a traditional pressure-resistant cabin are effectively improved, and the installation efficiency of the pressure-resistant cabin body is further improved.

The invention belongs to the technical field of ocean and discloses a port observer for ocean waves. Aiming at the problem that the observation screen of the existing port observer is easily wetted by the waves, resulting in blurred observation, and the connection between the wires in the observer and the shell is prone to leaks, resulting in moisture intrusion, this paper proposes this Invented scheme. The port observer includes a casing, the bottom inner wall of the casing is fixedly mounted with an observer, the bottom of the casing is fixedly mounted with a bottom plate, and four symmetrically arranged support rods are slidably connected to the bottom plate. Threads are provided, a backing plate is fixedly installed on the bottom end of the support rod, and a baffle is fixedly installed on the top end of the support rod. The port viewer of the present invention is simple to operate and easy to use, can wipe the transparent glass of the viewer, and can also adjust the height of the viewer, and at the same time, it is convenient to disassemble and assemble connecting wires, and can be sealed, which is convenient for use.