752results about "Propulsion based emission reduction" patented technology

The invention discloses an extended-range hydrogen fuel power ship propulsion system, which relates to the technical field of ship propulsion and comprises an acquisition module, a quantum annealing optimization module and a quantum chip, the acquisition module is used for eliminating noise interference of acquired hydrogen energy ship power parameters through a Kalman filtering algorithm and generating a standardized data packet, and the quantum chip is used for receiving the standardized data packet and outputting the standardized data packet. The method comprises the following steps: mapping hydrogen energy ship power parameters into an Isin model, generating a control instruction according to a hydrogen fuel consumption rate, an equipment life attenuation coefficient and a navigation task priority weight, inputting the control instruction into a simulation model of a proton exchange membrane by a proton membrane regulation and control module, and dynamically regulating a hydrogen production rate and fuel cell power, according to the system, the efficient hydrogen energy closed-loop monitoring unit and the three-level safety protocol are adopted, the response speed and precision are improved, the stability and safety are remarkably enhanced, it is ensured that a ship can reliably operate under the complex working condition, and potential safety risks are reduced.

Disclosed herein is a gas purging system for ships having an engine fueled by fuel gas. The gas purging system includes: a fuel supply line along which fuel gas is supplied to the engine; a gas valve unit disposed on the fuel supply line to control a pressure of the fuel gas; and a purge line along which nitrogen gas is supplied to the engine to purge an interior of the engine and an interior of the fuel supply line, wherein the nitrogen gas is directly supplied to the engine along the purge line, purges the interior of the engine and the fuel supply line, and is discharged to outside atmosphere through the gas valve unit.

The invention relates to the technical field of unmanned ships, and discloses a novel wave-light complementary power generation-based multifunctional unmanned operation and maintenance ship, which comprises a ship body, an environment monitoring mechanism, an energy recovery mechanism, a full-rotation electric propulsion device, an unmanned aerial vehicle landing platform, an ROV automatic laying and recovery mechanism and an AUV automatic laying and recovery mechanism, the energy recovery mechanism comprises two clean energy power generation devices including wave energy power generation devices and solar power generation devices, the wave energy power generation devices are installed on the two sides of the ship body, the solar power generation devices are installed on a deck of the ship body, and clean energy is stored and redistributed through a storage battery in the cabin. An energy recovery mechanism of the device comprises wave energy power generation devices installed on the two sides of the ship body and a solar power generation device installed on the deck, comprehensive utilization of wave energy and solar energy can be achieved, the utilization rate of clean energy is increased, and the requirement for long endurance of the unmanned operation and maintenance ship is met.

A vessel hybrid combined cycle power and propulsion system includes a steam turbine, a gas turbine, an auxiliary generator, an electric propulsion drive system, and an energy storage system, each connected to an AC bus. The system further includes a source of steam for the steam turbine, a control system for controlling operation of the steam turbine, gas turbine, auxiliary generators, electric drive propulsion system and energy storage system. The primary source of steam for the steam turbine is exhaust gas from the gas turbine. The primary source of gas for the gas turbine is boil off gas from the cargo hold. The AC bus includes a plurality of sections of AC bus coupled together by bus ties closed in normal operation forming a closed ring AC bus. The electric propulsion drive system includes a variable speed drive, driving an electric motor coupled through a drive shaft to a propeller.

The invention discloses a ship efficient airfoil sail with a winglet, which comprises a main wing, the winglet, a mast structure, a lifting mechanism, a rotary driving device, an angle adjusting mechanism and an intelligent control system, and is characterized in that the winglet with an adjustable angle is mounted at the wingtip of the main wing, so that the airflow flowing state at the end part of the main wing can be effectively changed, and the airfoil sail can be effectively controlled. Wingtip vortexes are inhibited, and induced resistance is reduced; the angle adjusting mechanism can adjust the angle of the winglet according to the actual wind condition, the induced resistance is effectively reduced, and the overall aerodynamic efficiency of the sail is improved; the sail is automatically adjusted by controlling the lifting mechanism, the rotary driving device and the angle adjusting mechanism. The sail system can improve the wind energy capturing and converting efficiency of the sail, assists a ship in emission reduction and efficiency improvement through wind energy, can adapt to different ship types and navigation working conditions, has the advantages of being reasonable in structure, remarkable in energy saving, wide in application range and the like, has important significance in promoting green shipping development of the ship, and can achieve energy-saving and efficiency-improving green navigation of the ship.

The invention relates to the technical field of ocean unmanned vehicles, and particularly discloses a wave glider laying and recovery system and a collaborative operation method thereof.The wave glider laying and recovery system is composed of a transferring laying device, a tail buoy, a flat cable recovery device and a salvage recovery rod; the moving, transporting and laying device adopts a modularized quick-release structure and a positive and negative thread screw collinear self-adjusting positioning mechanism and is matched with a hand-pulled spring shackle to achieve five-minute zero-assembly laying, and a tail buoy achieves floating body electric control separation through a waterproof steering engine driving lead screw nut transmission and a guide column-guide sleeve conical self-centering structure. The flat cable recovery device is designed based on an eccentric cam self-locking principle and a progressive clamping mechanism, and is combined with a three-stage hoisting strategy to complete efficient and lossless recovery of the flexible flat cable of 7-8 meters; the invention further discloses a collaborative operation method of the wave glider laying and recovery system, which comprises the processes of moving and positioning, device separation, hand pulling and releasing and underwater unfolding in a laying stage, and a time sequence linkage strategy of buoy separation, positioning and dragging and graded hoisting in a recovery stage.

The present disclosure relates to a telescopic profile wing system (1) for propelling a vehicle by wind power, the profile wing system comprising a mast (M) and a set of telescopic segments (SG) that cooperate with each other during guidance, and wherein the telescopic segments are configured to form a profile wing (AP) at least in a deployed position (P1) in which the telescopic segments (SG, SG) engage with each other. Said telescopic segments extend relative to each other in the direction of said mast (M) by forming said profiled wings having a first wing surface (S1) and a second wing surface (S2) distributed on both sides of said mast (M), said system being configured to switch from said deployed position (P1) to a retracted position in which said first wing surface (S1) and said second wing surface (S2) extend relative to each other in the direction of said mast (M). The individual segments (SG) are collapsed with each other, and the profiled wing (AP) is then in a position occupying a smaller space relative to the deployed position.

The invention discloses a marine wind-solar hybrid driving device and a control method, and relates to the technical field of ship power systems, and the driving device comprises a wind energy collection unit, a solar energy collection unit, a conduction unit and a power distribution structure. According to the marine wind-solar hybrid driving device and the control method, efficient cooperative utilization of wind energy and solar energy is realized by constructing a real-time energy flow network and adopting a model prediction control algorithm; under typical working conditions, compared with a traditional scheme, the wind-solar cooperative power generation efficiency is remarkably improved, and the energy switching loss is greatly reduced; and secondly, a self-adaptive adjustment mechanism is designed for an extreme environment, so that stable and efficient operation of the system under special conditions such as high temperature and low temperature is effectively guaranteed, and the problem that the energy conversion efficiency in a traditional system is greatly reduced is avoided.

A watercraft propulsion system (100) includes an engine propulsion device (OM) including a power generator (38), an electric propulsion device (EM) connected to a battery (145) charged by the power generator (38), and a controller (101). The controller (101) includes an extender mode in which the electric propulsion device (EM) generates a propulsive force and the power generator (38) of the engine propulsion device (OM) is driven to charge the battery (145). The controller (101) is configured or programmed to change an engine speed of the engine propulsion device (OM) according to a watercraft speed in the extender mode.

This wind force propulsion device is installed on a moving body and generates propulsion force by receiving wind. The wind force propulsion device is provided with an assembly comprising: a rotating body that can rotate around a rotating shaft extending in a predetermined direction; and a plurality of plate-shaped blades that are respectively fixed to the rotating body. The plurality of blades are provided so that virtual straight lines connecting both ends of each of the plurality of blades are parallel to each other.

An ammonia abatement system includes: a gas flow line through which a purge gas containing ammonia and an inert gas flows; a dilution tank in which an absorbing liquid capable of absorbing the ammonia is stored, and that is capable of temporarily storing the purge gas that is supplied from the gas flow line; a sending line through which a gas in a gas phase in the dilution tank is capable of being sent to an outside of the dilution tank; an abatement device that is connected to the sending line and detoxifies the ammonia contained in the gas that is sent through the sending line; a flow rate adjustment valve that is provided in the sending line; and a control device that controls an opening and closing operation of the flow rate adjustment valve, in which the control device causes the flow rate adjustment valve to transition from a closed state to an open state when ammonia concentration of the gas phase in the dilution tank, in which the purge gas is temporarily stored, falls below a predetermined value.

The present invention provides an arrangement structure of a fuel tank for cabins of a ship and electric propulsion, comprising: an electric propulsion system (110) which is arranged in an engine room (111) and provides power produced by a gas turbine (112) as a propulsion force to an electric propulsion motor; a first liquefied gas storage tank (120) which is arranged in a cargo section (A) and supplies a first gas fuel to the gas turbine (112); and a second liquefied gas storage tank (130) which is arranged in a bow section (b) and supplies a second gas fuel to the gas turbine (112), to thereby secure safety and an extra space in the engine room through the arrangement of the second liquefied gas storage tank (130) in the bow.

System for powering an electric watercraft comprising a removable modular battery comprising a plurality of removable rechargeable battery stacks. The battery stacks are arranged inside one or more battery frames in order to facilitate the removal of depleted and / or damaged battery stacks and their replacement with charged ones. Also provided is a method for powering an electric watercraft using the modular variable capacity electric power system disclosed herein. Said system and method are particularly suitable for watercrafts operating journeys consisting of one or more intermediate stops such as ferryboats.

An unmanned vehicle system is provided. The system may comprise a host vehicle and a guest vehicle, each of which may each include a vehicle body, a control system, a maneuvering system, and a sensor and communication system. The host vehicle may also include a securing system. The host vehicle and the guest vehicle may be in communication with one another, and the guest vehicle may be moveable between a stowed state, defined as the guest vehicle being at least partially carried by a portion of the host vehicle, and a deployed state, defined as the guest vehicle being spaced apart from the host vehicle. The securing system may be operable to move between a locked state and an unlocked state to selectively engage the guest vehicle to allow for the guest vehicle to be moved from the stowed state to the deployed state.

A propulsion system (TWIN1) for moving a ship (SHIP1) comprises: - a controllable pitch propeller (PRO1) driven by an engine (ENG1), - a left rudder (R1), - a right rudder (R2), and - a control system (CSYS1), wherein the left rudder (R1) has a first turning axis (AX1) and a first trailing edge (TE1), wherein the right rudder (R2) has a second turning axis (AX2) and a second trailing edge (TE2), wherein a distance (wG) between the trailing edges (TE1, TE2) is adjustable by changing the difference (θ1-θ2) between a rudder angle (θ1) of the left rudder (R1) and a rudder angle (θ2) of the right rudder (R2), wherein the propulsion system (TWIN1) has a first operating mode (MODE1), where changing the velocity (vS) of the ship (SHIP1) comprises changing the shaft power (PS) of the propeller (PRO1), wherein the propulsion system (TWIN1) has a second operating mode (MODE2), where the control system (SYS1) is arranged to change the velocity (vS) of the ship (SHIP1) by changing the difference (θ1-θ2) between the rudder angle (θ1) of the left rudder (R1) and the rudder angle (θ2) of the right rudder (R2), wherein the control system (SYS1) is arranged to change the pitch angle (αP) of the propeller (PRO1) such that the shaft power (PS) is kept substantially equal to a first power value (P1) in a situation where the velocity (vS) of the ship (SHIP1) is changed by changing the difference (θ1-θ2) between the rudder angles (θ1-θ2).

An unmanned vehicle may include a vehicle body and a propulsion system carried by the vehicle body. The unmanned vehicle may also include a maneuvering system carried by the vehicle body and a vehicle control system carried by the vehicle body. The vehicle control system may control speed, orientation, or direction of travel of the unmanned vehicle. The unmanned vehicle may also include a mount point carried by the vehicle body. An interchangeable payload deck may be removably connected to a portion of the vehicle body via the at least one mount point. The unmanned vehicle may further include a power supply carried by the vehicle body.

The invention discloses a multi-mode wave propulsion unmanned vehicle, which relates to the technical field of unmanned vehicles and comprises a vehicle main body, a dynamic buoyancy adjusting module, a multifunctional intelligent sensing and communication system, a flexible solar power generation unit, an emergency load rejection device, a hanging cable and a dual-mode propulsion system. The wave energy capturing efficiency is improved through the wing body fusion or rotary body wing adding design of the navigation body main body; the dynamic buoyancy adjusting module controls the diving speed and depth through double closed loops; the multifunctional intelligent sensing and communication system integrates a multi-source sensor and a multi-mode communication unit, improves the environment sensing capability and the information transmission efficiency, and has a hierarchical threat response mechanism and the like. The underwater vehicle has the multi-mode movement capacity of water surface cruising, near-water-surface navigation, underwater sneaking and the like, integrates multiple functional modules of wave energy propelling, active propelling, intelligent sensing, dynamic buoyancy adjusting and the like, and aims at improving the cruising ability, the environmental adaptability and the autonomous operation capacity of the underwater vehicle.

A ship equipped with a gas turbine and a waste heat recovery-based electric propulsion system, according to an embodiment of the present invention, enhances the efficiency of a gas turbine (142) by including a stern section (C) comprising: the gas turbine (142), disposed in an engine room (141), that generates electric power by combustion of first fuel supplied from a second fuel tank (143) or second fuel supplied from cargo tanks (TK1 to TK4) and supplies the electric power to an electric propulsion motor; the second fuel tank (143), which is disposed in an upper side free space of the engine room (141), has an upper end exposed to an upper deck (UD), and supplies the first fuel to the gas turbine (142); and a waste heat recovery system (150) that converts waste heat from exhaust gas of the gas turbine (142) into electric power and then supplies the electric power to the electric propulsion motor.

A cold energy recovery facility includes a liquid hydrogen tank configured to store liquid hydrogen a first circuit configured to circulate a first working medium, a second circuit configured to circulate a second working medium having a freezing point higher than the first working medium, a first turboexpander provided in the first circuit, the first turboexpander being configured to be driven by the first working medium in a gas state, a second turboexpander provided in the second circuit, the second turboexpander being configured to be driven by the second working medium in a gas state, a first heat exchanger configured to vaporize the liquid hydrogen from the liquid hydrogen tank by heat exchange with the first working medium, a second heat exchanger configured to vaporize the first working medium in a liquid state by heat exchange with the second working medium, and a third heat exchanger configured to vaporize the second working medium in a liquid state by heat exchange with a heat medium, wherein the first circuit and the first turboexpander form a part of a first thermodynamic cycle that uses the liquid hydrogen as a low-temperature heat source in the first heat exchanger, and the second circuit and the second turboexpander form a part of a second thermodynamic cycle that uses the first working medium as a low-temperature heat source in the second heat exchanger.

The invention discloses a control method of a marine wind power boosting rotor, and relates to the technical field of ship energy conservation and control, and the method comprises the steps: determining constraint conditions of marine wind power boosting rotor control; according to the wind power environment parameters, the operation condition of the wind power boosting rotor for the ship at the t moment is determined, and the optimal rotating speed of the wind power boosting rotor for the ship is determined; constructing a target function controlled by the marine wind power boosting rotor, and calculating the optimal rudder angle and the optimal propeller power of the ship when the target function reaches the minimum by utilizing an optimization method according to the optimal rotating speed at the moment t, the rudder angle of the ship, the propeller power, the motion state parameters and the wind power environment parameters; and the rotating speed of the wind power boosting rotor and the rudder angle of the ship are adjusted according to the optimal rotating speed, the optimal rudder angle and the optimal propeller power. According to the method, cooperative improvement of rotor energy efficiency and ship control stability is achieved by controlling boundary constraint and self-adaptive adjustment of a complex wind field.

The invention discloses a wind power boosting rotor device and a ship, a roller of the wind power boosting rotor device is mounted on a track in a rolling manner, the track is provided with a locking hole group, and the locking hole group comprises a plurality of locking holes distributed at intervals along the extension direction of the track; the rail clamp is slidably arranged on the rail; a shell of the first linear driving piece is fixedly connected with the rail clamp, the output end of the first linear driving piece is fixedly connected with the locking piece, and the first linear driving piece can drive the locking piece to be connected with any locking hole of the locking hole set in an inserted mode so as to lock the relative position of the rail clamp and the rail. One of a shell of the second linear driving piece and the output end of the second linear driving piece is rotationally connected with the rail clamp, the other one of the shell of the second linear driving piece and the output end of the second linear driving piece is rotationally connected with the base, and the second linear driving piece can selectively drive one of the base and the rail clamp to move in the extending direction of the rail. The wind power boosting rotor device is simple in structure, and after the locking piece is inserted into the locking hole in the expected position, the wind power boosting rotor device can be fixed at the expected position.

A hybrid ship propulsion machine includes an internal-combustion-drive propulsion part, a fixing bracket configured to fix the internal-combustion-drive propulsion part to a ship, an electric propulsion part, an elevating device configured to elevate and lower the electric propulsion part; and an attachment bracket attaching the electric propulsion part and the elevating device to the fixing bracket. The elevating device is configured to elevate and lower the electric propulsion part between a position where a second propeller of the electric propulsion part sinks below a water surface and a position where the second propeller comes out of the water surface.

The invention discloses a wind power navigation aiding device for a ship. The wind power navigation aiding device comprises a deformable cylinder body (1) and a rotating cylinder motor, the deformable barrel body comprises a rotary barrel frame (11) and a plurality of wing sailboards (13); the rotary drum frame is rotatably mounted on a ship, so that the deformable drum body can rotate on the ship, and the rotary drum motor is used for driving the deformable drum body to rotate; the wing sailboard is provided with an arc surface and a plane; all the wing sailboards are assembled on the rotating drum frame through the direction changing mechanism, the rotating angles and the moving positions of the wing sailboards can be changed based on the direction changing mechanism, and the configuration of the deformable drum body can be changed. When the ship is transformed into a gathering cylinder structure, the ship can be indirectly pushed to move forward by means of wind power based on the Magnus effect; when the ship is transformed into a dispersed sail structure, the ship can be directly pushed to advance by means of wind power like a sail.

To further suppress retention of ammonia inside a vent post and in its vicinity.SOLUTION: A vessel includes: a hull; an ammonia present part that is provided in the hull and in which ammonia exists; a vent post having a vent post body that forms a cylindrical shape extending upward from the hull and discharges ammonia from the ammonia present part from below to above, and a rain receiving part provided inside the vent post body; and an air supply part that supplies air from outside the vent post to a position above the rain receiving part in the vent post.SELECTED DRAWING: Figure 2

The invention discloses a liquid hydrogen high-temperature superconducting motor and magnetofluid dual-power propulsion system, and aims to solve the problems that an existing ship propulsion system is single in power mode and insufficient in power density. The system comprises a liquid hydrogen storage and supply unit, a cooling unit, an energy conversion unit, a superconducting motor propulsion unit and a magnetofluid propulsion unit, the liquid hydrogen storage and supply unit conveys liquid hydrogen to the superconducting part through the cooling loop, the liquid hydrogen is converted into hydrogen through the heat exchanger after being cooled, the energy conversion unit converts the hydrogen into electric energy and outputs the electric energy in a matched mode, and the superconducting motor propulsion unit and the magnetic fluid propulsion unit generate mechanical energy or electromagnetic force through the electric energy to drive a ship. And the superconducting component is cooled by the cooling loop. The liquid hydrogen in the system has the dual functions of a cooling medium and fuel, a coolant and fuel do not need to be additionally configured, the requirements for silence, high thrust and rapid maneuvering are met, the power density is high, the environmental protection property is good, and the system is suitable for high-performance propelling scenes such as ships, especially submarines.

The invention discloses a wind-light wave hybrid drive unmanned ship which comprises a ship body, a sail propelling device, a propeller propelling device, a wave drive device, a solar power supply system and a control module. A solar panel is installed on the ship body and can convert solar energy into electric energy to be stored in a battery. The sail propelling device provides main propelling force for the unmanned ship by means of wind energy; the wave driving device generates propulsive force by utilizing wave energy and has a course control function; the propeller propelling device serves as auxiliary power and provides thrust under specific working conditions. The control module intelligently regulates and controls the working modes of the propelling devices according to the sea condition information based on a reinforcement learning energy management algorithm, and multi-energy cooperative driving is achieved; the unmanned ship solves the problems of single energy dependence, insufficient navigational speed and maneuverability and tedious deployment and recovery of the existing unmanned ship, has the advantages of long endurance, high maneuverability, environmental protection and easy operation, and is suitable for various tasks of ocean observation, scientific research monitoring and military reconnaissance.

To measure liquefied carbon dioxide discharged from a storage unit with higher precision.SOLUTION: A carbon dioxide recovery system includes: a carbon dioxide recovery unit for recovering gaseous carbon dioxide from carbon dioxide-containing gas; a liquefying unit for liquefying gaseous carbon dioxide recovered by the carbon dioxide recovery unit; a plurality of storage units capable of storing the liquefied carbon dioxide liquefied by the liquefying unit; a switching unit for feeding the liquefied carbon dioxide liquefied by the liquefying unit when some of the plurality of storage units are discharging the liquefied carbon dioxide to other storage units not discharging the liquefied carbon dioxide among the plurality of storage units; and a measuring unit for measuring the liquefied carbon dioxide discharged from the storage units.SELECTED DRAWING: Figure 2

The invention discloses a wind-driven wing sail type unmanned sailing boat, comprising: a boat body comprising a water surface part and an underwater part, the water surface part being provided with a deck, the deck being provided with a solar panel, the underwater part being provided with a keel and a rudder blade; the wing sail is connected with the ship body through a sail rotating mechanism and used for providing sailing driving force, the wing sail is of a symmetrical structure, and flexible solar panels are embedded in the left side face and the right side face of the wing sail; the rudder blade is connected with the ship body through a rudder shifting mechanism and used for controlling the course; and the energy storage and control module is arranged in the ship body and used for being connected with the solar panel, storing energy and controlling the sail rotating mechanism and the rudder rotating mechanism to operate. The wing sail skin of a carbon fiber / PVC three-layer sandwich structure is adopted and matched with the variable-cross-section carbon fiber rib plate, balance of light weight and flutter resistance is achieved, the double integration mode of the solar cell is adopted, the flexible solar panels on the two sides of the wing sail and the deck monocrystalline silicon cell form a complementary power supply network, the autonomous survivability is high, and the requirement for ocean sailing is met.