52 results about "Powered watercraft" patented technology

An electric boat running on land is similar to a boat in water in appearance, is an electric entertainment apparatus, is suitable for being used in occasions such as amusement parks and parks, and is characterized in that the electric boat running on land is realized by utilizing two universal wheels and two driving wheels at the bottom of the boat, and the electric boat is controlled to run in two ways, namely, paddle rowing and supporting rod supporting; according to paddle rowing, paddles on the boat are used for simulating the action of rowing in water to control the boat, the paddles do not make contact with the road surface, only the boat is controlled to go straight, stop, turn left and turn right, power is not provided for driving of the boat, and a gear speed increasing type power generation device is arranged in a paddle assembly. The supporting rod boat supporting means that a matched supporting rod is used for simulating the action of supporting the boat in water to control the boat, the probe end of the supporting rod makes contact with the road surface, the supporting rod boat supporting only controls the boat to go straight, stop, turn left and turn right instead of providing power for driving of the boat, and a resistance type pressure sensor is arranged in a supporting rod assembly.

This invention relates to the field of marine propulsion technology, specifically to an auxiliary propulsion structure for electric ships. The structure includes a ship hull, a propeller mounted on the bottom of the hull, and rotating rods fixedly connected to both sides of the hull. An auxiliary propeller is mounted on each rotating rod. Through an idling cooling mechanism, when the water inlet is above the water surface, causing the drive rod to drive the auxiliary propeller to idle, the idling cooling mechanism opens an emergency water path. This allows pre-stored cooling water from the tank to be precisely delivered via drip pipes to the junction of the drive rod and the bearing. This directional dripping forms a water film at the friction interface, providing immediate lubrication and drag reduction, as well as rapid heat absorption and cooling, preventing high-temperature wear, deformation, or sintering of components. Compared to traditional unprotected designs, this mechanism is fast-responding and highly targeted, minimizing damage to core components during idling and ensuring reliable operation of the auxiliary propeller in complex waters.

The utility model discloses a plateau lake floating object salvaging device which comprises a power ship, fixing boxes are fixed to the left side and the right side of the tail of the power ship, and salvaging buckets are arranged behind the fixing boxes. In the utility model, a group of fixed boxes and salvage buckets are respectively arranged on the left side and the right side of the tail part of the power boat, and the power boat is started to run on the water surface of the plateau lake, so that the salvage buckets behind the fixed boxes are promoted to take floating objects on the water surface of the plateau lake from salvage openings in the running stage of the power boat, and then the steel meshes at the tail parts of the salvage buckets are used for draining water; in the process, the adjusting hook plate is pushed through the hand lever, a T-shaped sliding strip of the adjusting hook plate is promoted to slide relative to a sliding groove formed in the surface of the salvage hopper, the adjusting hook plate is gradually away from the power ship, the coverage range of the salvage hopper is enlarged, and the salvage comprehensiveness of the floating objects on the plateau lake surface is improved. The problem that a traditional salvage device can only salvage floating objects close to the shore is solved.

Disclosed is an energy-independent smart port system using SMR-based surplus power. When an SMR-powered vessel docks at a port while the reactor is in operation, the energy-independent smart port system uses relevant technology and equipment to supply surplus power from the SMR-powered vessel to the port in consideration of safety regulations and the characteristic that restarting the reactor of the SMR-powered vessel requires significant time and cost, stably increase the energy independence of a smart port, and can reduce marine air pollutant emissions.

The invention discloses an inland wharf hydrogen fuel power-driven ship charging system and method, and the system comprises a plurality of intelligent shore power piles, each intelligent shore power pile is integrated with a communication module, and is used for carrying out the real-time data interaction with a wharf energy management platform; the charging mechanical arm is configured on the intelligent shore power pile, has an automatic cable management function and is used for realizing automatic butt joint and separation with the hydrogen fuel powered ship; and the wharf energy management platform is deployed in a wharf data center, and the wharf energy management platform is in communication connection with the intelligent shore power piles and is used for monitoring the load of a wharf power distribution network in real time and dynamically distributing the charging power of the hydrogen fuel power-driven ships based on power grid security constraints. Joint optimization is carried out based on the mixing characteristics of the hydrogen fuel power-driven ship, the unique dual-energy input characteristics of the hydrogen fuel power-driven ship are tightly combined, wharf energy management is achieved, and important infrastructure support is provided for green transformation of inland river shipping.

The invention relates to the technical field of green transformation of inland river shipping, in particular to an inland river hydrogen fuel cell power-driven ship technical adaptability popularization method based on a tetragonal evolutionary game, which comprises the following steps: taking a government, a port, a shipping enterprise and the public as core benefit subjects in inland river hydrogen energy power-driven ship popularization, and determining an income selection set of each subject; constructing a subject revenue function based on a tetragonal evolutionary game; based on the subject revenue function, deducing a replication dynamic equation of the core benefit subject, and constructing a tetragonal evolutionary game system dynamics model; setting a first media exposure threshold value and a second media exposure threshold value, and establishing a government regulation intensity regulation and control mechanism; constructing a public feedback layered response mechanism according to the public whistle blowing intensity; and when the income of the core benefit subject reaches an ideal equilibrium state, the government supervision gradient exits, and the technical adaptability popularization of the inland river hydrogen fuel cell power ship is realized. According to the invention, interests of multiple parties can be coordinated, and the promotion resistance of inland river hydrogen energy power ships is relieved.

This invention proposes an icebreaking device, vessel, and method combining jet-resonance technology for ice-trapped vessels, relating to the field of polar icebreaking technology. It addresses the problem of conventionally powered vessels or icebreakers with low ice levels struggling to break through ice in areas with ice thickness greater than 1.2 meters. It includes a hoisting platform, a jet icebreaking module, a resonant icebreaking module, and an attachment stabilization module. The hoisting platform is used for assembly with an external crane. The jet icebreaking module outputs water jets to break the ice. The resonant icebreaking module induces resonance in the ice layer. The attachment stabilization module includes a helical anchor bolt and a power mechanism. The power mechanism drives the helical anchor bolt to rotate relative to the hoisting platform, and the helical anchor bolt drills into the ice surface to fix the hoisting platform. It is primarily used on polar vessels to break through ice and escape when a vessel is trapped.

The utility model discloses an electric ship, including ship body structure, deck structure, ship bottom support structure, power system and advancing system. The utility model connects bridge through rigid connection piece body and two groups of lower piece, and the ship body torsional rigidity and transverse stability are improved obviously, form the low resistance navigation characteristic of catamaran's particularity, and the space utilization rate is optimized through the functional division of the layered arrangement upper deck and lower deck, and the grid skeleton of the ship bottom support structure is embedded, and the lower piece structure strength is strengthened, and the integrated ballast water tank function enhances the ship counterweight adjusting capacity, and the power system passes through the modularization battery pack, and the battery thermal runaway risk is reduced while ensuring the energy supply stability, and the advancing system adopts the combination scheme of sectional flange connection structure and watertight packaging subassembly, guarantees the transmission stability of drive shaft when the ship body deformation, avoids the water seepage into the transmission mechanism, satisfies the torsional deformation and the propulsion efficiency such as ship operation core demand.

An electric powered watercraft includes a board, a battery, a motor, and a controller with an output, wherein an optical waveguide communicates light from the output to a dock of the board.

This invention relates to the field of hydrogen-powered ship design, specifically to a method for assessing the adaptability of hydrogen-powered ship propulsion systems for different navigation domains. The method includes the following steps: rating candidate equipment for key components and constructing an equipment rating table; establishing safety constraints and eliminating candidate equipment that does not meet these constraints; establishing balance constraints and eliminating candidate equipment that does not meet these constraints; establishing a set of candidate propulsion system configurations and determining the score for each configuration; adjusting the weights of each configuration's score to generate a scenario-based index score matrix; calculating the variability and conflict of evaluation indicators and determining the combined weights of these indicators; calculating a comprehensive evaluation index and ranking the candidate configurations to output the preferred configuration. This invention significantly improves the objectivity and efficiency of hydrogen-powered ship propulsion system adaptability assessment, ensures operational safety, achieves accurate adaptability across multiple scenarios, and provides a reliable basis for engineering selection.

A ventilation mast suitable for an ammonia fuel powered ship is characterized in that a combined ventilation mast is composed of a main ventilation mast body and two sets of auxiliary ventilation mast bodies, the two sets of auxiliary ventilation mast bodies are the first auxiliary ventilation mast body set and the second auxiliary ventilation mast body set respectively, the first auxiliary ventilation mast body set is composed of a plurality of first auxiliary ventilation mast bodies, and the second auxiliary ventilation mast body set is composed of a plurality of second auxiliary ventilation mast bodies; the number of the first auxiliary ventilation masts is the same as that of the second auxiliary ventilation masts, the multiple first auxiliary ventilation masts and the multiple second auxiliary ventilation masts are alternately arranged in the circumferential direction of the main ventilation mast, the heights of the multiple first auxiliary ventilation masts are sequentially reduced, the heights of the multiple second auxiliary ventilation masts are sequentially reduced, and in the first auxiliary ventilation mast set, the first auxiliary ventilation mast with the lowest height is higher than the second auxiliary ventilation mast with the lowest height. And in the second auxiliary ventilation mast group, the height is higher than that of the second auxiliary ventilation mast with the highest height. The staggered lowering mode helps all the auxiliary air outlets to be staggered to the maximum degree in height and angle, so that secondary diffusion of toxic areas caused by pressure difference among all the ventilation pipelines when ammonia gas leaks is avoided.

A large nuclear-powered ship, such as a repurposed aircraft carrier or a large cargo ship, is outfitted with a plurality of large downward-directed subsurface mixer propellers secured on its sides and / or ends. The propellers are positioned below the bottom of the ship and have blade lengths in the range of 10-60 m. They are coupled to the ship's steam turbines by drive shafts and gearing compatible with the required propeller power and rotational rates, typically 25-150 MW per mixer propeller and with blade tip speeds typically around 40 m / s. They produce a large-diameter low-velocity downward plume of surface sea waters below the ship that induces upwelling of cold nutrient-rich deep waters in areas where the cyclone genesis index is high. The downward mass-flow magnitude (typically 3-30 times the flow rate over Niagara Falls, but at only a few m / s) is on the scale needed for a small number of such ships to essentially end cyclone genesis in the Atlantic. At the same time, the induced upwelling of nutrient-rich deep waters is expected to lead to the newly mixed areas becoming highly productive fishing areas.

The present application belongs to the field of ship design, and particularly relates to a guide rail for a nuclear power ship loading and unloading box and a mounting method thereof. The guide rail comprises a plurality of loading and unloading box corner guide rails. The present application has the following advantages: 1) the present application sets the loading and unloading box guide rail to avoid the shaking and impact of the box hoisting on the ship structure; 2) the present application sets the reserved backing plate, rib plate and lining plate to provide support and convenience for the installation of the guide rail, and to avoid the damage of the installation operation to the ship structure; 3) the guide rail design of the present application has high flexibility, and can adapt to different sizes of the loading and unloading box, so that the ship can adapt to the design of different sizes of the loading and unloading box after the change of the years and the innovation of the technology; 4) the mounting scheme of the buffer pad provided by the present application can effectively solve the adverse effects of the falling impact on the safety shell, and the flatness problem of the deck and the box bottom plate, and ensure the operation in a closed environment.

The invention belongs to the technical field of new energy hydrogen production, and particularly relates to an inland river multifunctional ship economic dispatching strategy considering electric hydrogen and oxygen port crossing trade. Comprising the steps that a day-ahead scheduling model is constructed, and the day-ahead scheduling model comprises a target function, a multifunctional ship space transfer constraint and a multifunctional ship energy constraint; wherein the target function takes the minimum daily comprehensive operation cost of the multifunctional ship as a target, and the operation of the hybrid power ship is optimized; the multifunctional ship space transfer constraint comprises the steps that a multifunctional ship can be transferred among different ports; the multifunctional ship energy constraint comprises the steps that the multifunctional ship is provided with a storage battery and can be flexibly charged and discharged, the multifunctional ship can carry out hydrogen adding or hydrogen selling at a port and can generate electricity through hydrogen energy, and the multifunctional ship can carry out oxygen adding or oxygen selling at the port. According to the invention, the maximization of the operation economy of the electric oxyhydrogen port crossing trade is realized through the multifunctional inland river ship, and the comprehensive utilization rate of energy resources is improved.

The present invention provides a jet-powered boat, a jet-powered boat control system, and a method for maintaining the docked state of a jet-powered boat, which enable the boat operator to maintain the docked state of the boat at a pier even when the boat operator is located away from the hull. [Solution] This jet-propelled boat 100 includes a control unit 40 that performs docking maintenance control, which controls the water flow direction adjustment unit 30 so that the direction of the jet water flow generated from the water flow generation unit 20 is maintained in a state that presses the hull 10 against the pier 201 when a docking maintenance operation is performed to maintain the hull 10 docked against the pier 201, while also controlling the water flow generation unit 20 to maintain the state in which a jet water flow is generated from the water flow generation unit 20.

The utility model relates to the technical field of aerodynamic ships, in particular to an aerodynamic ship which comprises a ship body, a cockpit and a power assembly, the ship body comprises two parallel main air bags, an auxiliary air bag set is arranged between the two main air bags, and fish scale-shaped bionic armor layers are arranged on the outer surfaces of the main air bags and the auxiliary air bag set; the cockpit is a closed cockpit, the power assembly comprises an engine, a gearbox and an air propeller which are arranged on the rear portion of the ship body, a detachable protective cover assembly is arranged on the periphery of the power assembly, and a steering control mechanism is arranged at the tail end of the protective cover assembly. By arranging the fish scale-shaped bionic armor layer, the wear resistance and impact resistance of the ship body are enhanced, the air bag is effectively protected from being damaged by external sharp objects, and the service life of the ship body is prolonged; by arranging the protective cover assembly, the protective effect is effectively achieved, and maintenance and overhaul of the power system are also facilitated; by arranging the steering control mechanism, a driver can accurately control steering of the ship, operation is flexible, and maneuverability of the ship in the sailing process is improved.

The utility model discloses a device for preventing the water from flowing into the main engine of LNG power ship, which comprises an exhaust main pipe and an exhaust branch pipe, one end of the exhaust branch pipe is connected with the exhaust port of the main engine of LNG power ship, the other end is connected with the exhaust main pipe, the exhaust main pipe is provided with a vertical lowest point and a horizontal lowest point, a water tank and two water seals are further included, one end of the two water seals is connected with the water tank, the other end of one of the water seals is connected with the vertical lowest point of the exhaust main pipe, and the other end of the other water seal is connected with the horizontal lowest point of the exhaust main pipe. The utility model has the characteristics of effectively preventing the water in the exhaust main pipe from flowing back into the main engine of the ship.

The invention provides a method for analyzing and evaluating a ventilation mast of a large-scale dual-fuel power ship, and the method comprises the steps: constructing a whole-ship three-dimensional model according to the ship size which comprises sea area ship height limitation and deck periphery arrangement; grid division is carried out according to the whole-ship three-dimensional model, and a computational domain is determined for the whole-ship three-dimensional model after grid division; under the influence of gas sedimentation under the action of gravity, simulation solving is conducted on expansion behaviors in the gas release process of the ventilation masts under all working conditions of the whole scene based on fluid mechanics, and a calculation result is obtained; under the influence of gas sedimentation under the action of gravity, the expansion behavior in the gas release process of the gas-permeable mast under all working conditions of the whole scene is simulated and solved based on fluid mechanics, and the technical problem that in the prior art, an analysis and evaluation method for the LNG ship gas-permeable mast is lacked is solved.

The invention discloses a rapid hydrogen supplementing system and method for a hydrogen-powered ship, and relates to the technical field of ship hydrogen supplementation. Environmental wind speed Wsp and environmental wind direction Wdr are used as real-time wind field input, and a dynamic calculation link is constructed in combination with a deck comprehensive inclination angle Til and a lifting appliance tail end position Pos; according to the method, deviation trend judgment of wind disturbance and inclination influence can be brought into a hoisting path in advance in a planning stage, so that the problem that the tail end is easy to approach but the angle deviation is accumulated excessively in a strong wind or ship body heeling state in a traditional hoisting mode is solved, and the deviation tendency in the process of approaching a butt joint port is recognized in advance by utilizing a trajectory deviation predictor Dev; and continuous correction is performed through the compensation path Cpt and the attitude angle sequence Att, and execution is driven by the hoisting control instruction set Cmd, so that the probability of oblique insertion, clamping stagnation and mistaken collision caused by wind load impact is remarkably reduced, and the average docking time of the hydrogen supplementing interface is gradually shortened from the previous adjustment time depending on manual visual inspection adjustment.

The invention discloses a fluid motion data prediction method and system based on a sensor. The method specifically comprises the following steps that fluid is poured into an experiment pool; setting a plurality of physical sensor groups in the fluid, recording first coordinate data of the physical sensor groups, and taking the data acquired by the physical sensor groups as physical state information corresponding to first coordinates; an unpowered ship is placed in the fluid, and a position sensor and an acceleration sensor are carried on the ship; creating waves in the fluid; taking the sensor group as a node in the graph structure, and obtaining state field information of the fluid in the experiment pool based on data acquired by the sensor group and the first coordinate data; calibrating the state field information according to data acquired by a sensor carried on the ship to obtain experimental state field information; and predicting the state field information of the experimental pool at the future moment based on the experimental state field information. The state field information of the fluid at the subsequent moment can be predicted, so that the change of the motion state of the fluid is researched.

The invention belongs to the technical field of ships, and particularly relates to a multipurpose ship structure. The adjacent unpowered van ships (2) are flexibly connected, the forefront unpowered van ship (2) is flexibly connected with the power bow (1), a hatch cover (4) is arranged at a hatch position at the upper part of a cabin (3), the cabin (3) is arranged in the unpowered van ships (2), the hatch cover (4) is arranged at the upper part of a hatch above the cabin (3), a wharf (5) is provided with a wharf track (6), and a ship track (7) is arranged at the upper part of the hatch cover (4). According to the multi-purpose ship structure, when goods are transferred between a wharf and the ship, the power bow and the unpowered compartment ship are connected in series to be close to the wharf, the power train connected in series can directly run and transfer between the wharf and the ship along the rails on the wharf and the ship deck, and the transportation speed is effectively increased; and the transportation time period is shortened, and upgrading and updating of shipping cargo transfer are achieved.

This invention discloses an LNG-powered ship energy comprehensive utilization system based on oxygen-enriched combustion carbon capture, comprising an air separation oxygen production subsystem, a cold energy and waste heat utilization subsystem, and a cryogenic carbon capture subsystem. The air separation oxygen production subsystem is based on a low-pressure full reflux process, integrating a multi-stage pressurized intercooler to utilize the cold energy from air separation products and the cold energy released from the distillation column reboiler for air precooling and deep cooling. The cold energy and waste heat utilization subsystem uses LNG as a cold source and flue gas as a heat source, coupled with the energy utilization of waste nitrogen, recovering ship energy through a combination of exhaust gas turbines and Rankine cycles. The cryogenic carbon capture subsystem utilizes the cold energy from LNG, cryogenic oxygen, and waste nitrogen to precool, pressurize, and liquefy part of the flue gas, with the remaining flue gas being used as working gas and fed into the main engine. This invention, based on the oxygen-enriched combustion carbon capture method, produces high-purity oxygen using a simplified and energy-saving air separation process, and efficiently recovers and utilizes ship energy, achieving zero carbon emissions while saving electricity costs and improving navigation efficiency.

1. Name of the designed product: electric ship. 2. Use of the designed product: for electric ship. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view.

To reduce an occupied space of a gas supply line while securing a large capacity of a tank in a marine fuel gas supply system including both a gas supply line for taking out liquefied gas from the tank storing the liquefied gas, vaporizing the liquefied gas and supplying the vaporized gas to a gas consumption apparatus and a gas supply line for taking out the vaporized gas from the tank and supplying the vaporized gas to the gas consumption apparatus.SOLUTION: The marine fuel gas supply system includes a tank having a liquid-phase region storing liquefied gas and a gas-phase region storing vaporized gas of the liquefied gas, a high-pressure gas supply line supplying high-pressure fuel gas obtained by forcibly vaporizing the liquefied gas taken out from the liquid-phase region of the tank to a high-pressure gas consuming device, a low-pressure gas supply line supplying the vaporized gas in the gas-phase region of the tank to a low-pressure gas consuming device as low-pressure fuel gas, and a pressure adjustment device adjusting pressure in the tank to a pressure set value corresponding to working pressure or required pressure of the low-pressure gas consuming device.SELECTED DRAWING: Figure 2

This invention provides a self-limiting multi-directional flexible compensation structure for double-walled pipes and its application. The self-limiting multi-directional flexible compensation structure for double-walled pipes includes: an inner pipe assembly, including a connected inner corrugated pipe and an inner intermediate pipe, with a displacement baffle on the outer wall of the inner intermediate pipe; and an outer pipe assembly, coaxially sleeved outside the inner pipe assembly, including a connected outer corrugated pipe and an outer intermediate pipe, with a limiting ring plate of thickness δ on the inner wall of the outer intermediate pipe; there are two displacement baffles located on both sides of the limiting ring plate, with a distance L between the two displacement baffles, where L = δ + 2X and X is 10–30 mm. This invention can effectively solve the problems of thermal expansion stress release and vibration absorption in double-walled pipes with limited space and dimensions, meeting the safety operation requirements of double-walled pipe systems in dual-fuel powered ships and the transportation of cryogenic media such as liquid hydrogen, liquid oxygen, and LNG.

The invention provides an unmanned ship with a separable power module and a use method of the unmanned ship. The unmanned ship is characterized in that a cavity communicated with the outside is formed in a main ship body; the traction mechanism is arranged in the main ship body and provided with a traction end capable of being wound and unwound in the transverse direction of the cavity. The mounting carrier is fixed to the traction end of the traction mechanism, a plurality of parking areas arranged at intervals are arranged on the mounting carrier and used for parking of the power ship body, a power module is arranged on the power ship body, and an insertion part is arranged on the power module; the buoyancy adjusting mechanism is used for adjusting the water surface height of the mounting carrier; the plurality of positioning mechanisms are arranged on the mounting carrier and are used for transversely and longitudinally positioning the power hull; the power module and the ship body are connected through a split type structure, active separation can be achieved according to requirements to achieve ship body residence, the module can return voyage to be charged or replaced automatically, and therefore task flexibility, cruising ability and maintenance efficiency of the unmanned ship are improved.

This invention provides a real-time dynamic risk quantification and early warning system and method for ammonia-fueled ships. The method includes: S1, real-time acquisition of ship-related data; S2, preprocessing the data to obtain a real-time data stream; S3, dynamically updating the event occurrence probability and equipment failure probability based on the real-time data stream; S4, using the real-time data stream as input, outputting a risk distribution field in real-time through a neural operator model; S5, obtaining the dynamic personal risk value for each crew member based on the risk distribution field and the real-time location information of the crew; dynamically updating the social risk curve based on the personnel distribution density in different areas of the ship; S6, generating a risk heat map of the entire ship based on a digital twin model of the ship; and issuing a graded early warning when the risk value in any area of ​​the ship exceeds a threshold. This invention highly synchronizes risk assessment with the actual risk situation, can match the dynamic operating status of the entire ship in real time, and improves the ability to predict and warn of potential risks.

1. Name of the product in this design: Powered boat propeller. 2. Purpose of this design: To provide propulsion power for ships. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention relates to the technical field of LNG ship building, and discloses a lifting tool for lifting a vertical tank of an LNG fuel powered ship, the lifting tool comprises a bottom plate and a fixing frame, a first positioning groove is formed in the face, close to the fixing frame, of the bottom plate, a first baffle is arranged on the face, close to the fixing frame, of the bottom plate, a first limiting assembly is arranged on the inner surface of the first positioning groove, and a second limiting assembly is arranged on the inner surface of the first baffle. A mounting frame is fixedly mounted at the end, away from the bottom plate, of the fixing frame, and a second baffle is arranged at the end, away from the bottom plate, of the fixing frame. According to the lifting tool for lifting the vertical tank of the LNG fuel powered ship, through cooperation of the vertical tank body, the first baffle and the second baffle, the vertical tank body is conveniently and rapidly limited, during lifting, the vertical tank can be prevented from shaking, the stability and the installation coefficient are improved, when the vertical tank bodies with different diameters are limited, only the first baffle and the second baffle need to be replaced, and the lifting tool is convenient to use. The vertical tanks with different diameters can be conveniently placed, so that the vertical tanks are hoisted, a hoisting tool does not need to be replaced, and the practicability, diversity and adaptability of overall hoisting are improved.