85 results about "Marine engineering" patented technology

The present invention relates to an arrangement in a floating drilling and intervention vessel, for controlling a heave compensated drill floor 7 suspended in drill floor compensator cylinders 10. Below the compensated drill floor 7 there is installed a tidal structure (3) suspended in tidal cylinders 2 or wires 25. By adjusting the tidal cylinders 2 or the wires 25 in step with the tide 17 it is achieved that the drill floor compensator cylinders 10 can operate around their middle position regardless of the tide lifting or lowering the vessel 16.

The invention discloses a system optimization method and device of ship operation energy efficiency. The method comprises the steps of data acquisition, mathematical model establishment, analysis and calculation, output and execution; namely, acquiring speed over water and speed over ground of the ship, real-time rotating speed and instant oil consumption of ship main engine; when the ship is in much deeper water, establishing a mathematical model between the real-time rotating speed of the ship main engine and the ship speed over water and a mathematical model between the real-time rotating speed of the ship main engine and the instant oil consumption of the ship main engine; analyzing and calculating the mathematical models under different water flow velocities and different main engine rotating speeds to obtain the ship kilometer oil consumption valves of the ship corresponding to different conditions; displaying the ship kilometer oil consumption value and the corresponding main engine rotating speed to guide the operation. The method also includes a ship technical state judging and navigation operating optimizing method. The device comprises a central processer and a memory thereof, a data acquisition equipment, man-machine conversation equipment, output equipment, a power supply unit and the like.

This invention is a floating docking port that allows ships to dock within the port structure and be loaded, unloaded, and refueled, while converting the energy generated from wave motion into a usable source of power. The docking port isolates the vessels from waves and adverse sea currents, which allows for more effective cargo transfer. The docking port is extremely large and functions as a storage and distribution center for naval vessels. The loading and unloading of cargo and containers is accomplished by a container handling system that utilizes hoists, railed carriages, and cargo elevators to facilitate efficient loading and unloading of containers.

A trailer bed system for loading/unloading a trailer without the usage of ramps. The trailer bed system includes a main frame with a plurality of supporting wheels, a deck frame pivotally attached to the main frame, and a front hitch structure pivotally attached to the deck frame. An actuator unit is attached to the front hitch structure and manipulates a length of cable that is attached to a pulley system thereby allowing for the control of the height of the deck frame.

A plate strip surface scale removal device is used for removing scales on the surface of a plate strip and comprises a removing device used for removing the scales, a gathering device used for gathering the scales, and a dust removing device. According to a scale removal method, through the cooperative work of the removing device, the gathering device and the dust removing device, continuous scale removal work of removing, gathering and dust removing is conducted. According to the plate strip surface scale removal device and method, a continuous dry type flexible brush roll scale removal device and method for plate strip surface scale removal are provided. A plate strip continuously passes through the part between brush rolls arranged up and down, and the scales on the surface of the plate strip are removed through the brush rolls rotating at a high speed. Each brush roll is composed of a spirally-arranged strip-shaped abrasive belt. The strip-shaped abrasive belts rotating at a high speed collide with the surface of the plate strip, sand grains on the abrasive belts grind the scales on the surface of the plate strip away, the scales become fine powder dust and are removed through the gathering device and the dust removing device, and the plate strip surface scale removal work is finished.

The invention discloses an actual ship measurement system and an actual ship measurement method for fuel consumption rate of a fishing boat. The actual ship measurement system comprises a day tank, a fuel measurement barrel, a fishing boat engine and an integrated control unit, wherein the day tank and the fuel measurement barrel are connected with the fishing boat engine through a three-way valve so as to supply fuel; the feeding amount of fuel supplied by the fuel measurement barrel to the fishing boat engine and the fuel density are measured through a flowmeter and an electronic densimeter; the flowmeter is used for measuring the fuel return amount of the fishing boat engine; the integrated control unit displays measurement data and calculates the fuel consumption rate of the fishing boat engine. The actual ship measurement system is simple in structure, convenient to assemble and disassemble and reasonable in design; the measurement data are accurate, the automation degree is high, and a measurement result is precise; various defects and shortcomings of inconvenience in use and operation, influence caused by environment factors, low measurement accuracy and precision, poor use effect and the like of the conventional actual ship measurement system for the fuel consumption of the fishing boat are effectively overcome.

The invention discloses a bridge detection structure and a detection method thereof. The bridge detection structure comprises a detection ship, an overwater device installed on the detection ship andused for being close to a pier, a fixing device installed on the overwater device and used for surrounding the pier, a lifting device installed on the fixing device and used for entering underwater, and a detection device installed on the lifting device and used for detecting defects of the pier. The overwater device comprises a base, an adjusting assembly installed on the base and a fixing base which is installed on the adjusting assembly and is always parallel to the horizontal plane in the moving process. The fixing device comprises a driving assembly and a supporting assembly installed onthe driving assembly. The lifting device comprises a lifting assembly and an underwater platform assembly installed on the lifting assembly. The bridge detection structure overcomes the defects of theprior art, provides the special underwater detection structure for the bridge pier, and solves the problems that the existing underwater detection of the bridge pier depends on manpower, and the working intensity is high and the detection risk is high.

The present invention provides an underwater vehicle cooperation positioning method and system, and relates to the underwater detection technology field. The method comprises: obtaining the position state information of a current underwater vehicle below the water in the last moment; determining whether location signals sent by a GPS buoy are received at the current moment or not; if determining that location signals sent by a GPS buoy are not received at the current moment, obtaining target signals sent by the target underwater vehicle in an adjacent communication range, wherein the target underwater vehicle is at least one underwater vehicle adjacently arranged with the current underwater vehicle, and the target signals comprise underwater acoustic environment parameters and position signals; and performing updating of the position state information of the current underwater vehicle based on the target signals to obtain the position state information of the current underwater vehicle at the current moment so as to effectively relieve the technical problem that a current underwater vehicle cannot satisfy a high-precision location requirement.

The invention relates to a buffering and energy dissipation collision avoidance device for a bridge. The buffering and energy dissipation collision avoidance device comprises a collision avoidance structure which sleeves the periphery of a bearing platform of a pier or a collision avoidance pier or a channel pier of the bridge and is provided with a long sliding chute, wherein buffers are distributed between the long sliding chute of the collision avoidance structure and two ends of the bearing platform of the pier or the collision avoidance pier or the channel pier; buffering devices are distributed between the long sliding chute of the collision avoidance structure and two sides of the bearing platform of the pier or the collision avoidance pier or the channel pier; the head of the collision avoidance structure is a streamline-shaped head or a leftwards inverted E-shaped head; height limiting frames for preventing ship collision are arranged on the collision avoidance structure in front of the bridge and on two sides of a channel. The buffering and energy dissipation collision avoidance device for the bridge has the technical advantages that when a ship collides with the head of the collision avoidance structure and the height limiting frames for preventing ship collision, the long sliding chute of the collision avoidance structure moves to press the buffers to do work to dissipate kinetic energy of the ship; meanwhile, under the guide of a leftwards inverted E-shaped slope or a streamline-shaped guide surface at the head of the collision avoidance structure, the ship is subjected to deviation rectification, and the height limiting frames stop a superhigh ship and protect a bridge frame of the bridge; when the side of the ship collides with the collision avoidance structure, the buffering devices on the long sliding chute of the collision avoidance structure protect the pier or the collision avoidance pier.

The invention provides a maintaining device. The maintaining device comprises two maintenance platforms. Each maintenance platform comprises a platform pedal, a ladder assembly, a supporting structure and a movable device, wherein the ladder assembly is arranged at one end of the platform pedal, and a connection structure is arranged at the other end of the platform pedal; the supporting structure is arranged below the platform pedal and used for supporting the platform pedal; the movable device is arranged below the supporting structure and the ladder assembly and used for conveying the maintenance platform. The two maintenance platforms are assembled and connected through the connection structures of the platform pedals. The shape after the two maintenance platforms are assembled and connected is matched with the shape of a headstock to be maintained, the maintaining device can be closer to a windshield wiper, glass and the like of the motor car headstock after assembly as the platform pedals with radians are arranged, the structures can be maintained and subjected to other treatment directly, the safety problems like falling off are avoided, and the maintenance and replacement efficiency and operation safety of the windshield wiper, glass and other components of the motor car headstock can be effectively improved.

The invention provides an anti-bubble invisible bulb bow integrated scientific investigation ship, belonging to the technical field of ship design and manufacture. The anti-bubble invisible bulb bow integrated scientific investigation ship comprises an invisible bulb bow which is arranged at the bottom of a ship bow and is integrated with the ship bow, wherein acoustic equipment is embedded in the invisible bulb bow, an oblique bubble guide groove is formed in the side face of the invisible bulb bow, and the invisible bulb bow is connected with a hull in a mode of smooth transition. By arranging the invisible bulb bow with a drop-shaped cross section and reducing the half entrance angle of the invisible bulb bow, the generation probability of breaking waves is reduced; the acoustic equipment is embedded in the invisible bulb bow, thereby being convenient for the acoustic equipment to work and being capable of reducing the sailing resistance; and the oblique bubble guide groove is formed in the side face of the invisible bulb bow, and the height between the bubble guide groove and the bottom of the ship is maximal at the ship bow, thereby effectively preventing generation of bubbles, improving the trend that the bubbles are discharged along the hull, and effectively avoiding the influence on the measurement of the acoustic equipment by the bubbles.

The invention provides an underwater leaked oil flexible collection cover which comprises a flexible collection cover, a buoyance assembly, an outlet pipe, cables, a counterweight device or a counterweight frame. The flexile connection cover is made of thin-film-shaped waterproof materials. The underwater leaked oil flexible collection cover can be folded to be stored at ordinary time, and the counterweight device and the outlet pipe can not be connected with the flexible collection cover temporarily at the moment. The outlet pipe is assembled well before the underwater leaked oil flexible collection cover goes to sea to be used, and at least the counterweight device or the counterweight frame capable of enabling a complete device to sink smoothly is connected in a matching mode. When the underwater leaked oil flexible collection cover is used, the flexible collection cover is unfolded to be covered above an oil leaking point, and the cables are tied on a fixed structural object/or a temporarily arranged anchor and a weight under the sea in a distributed mode. Collected leaked oil is output through a pipeline. The complete underwater leaked oil flexible collection cover is light in weight, foldable, detachable, easy to store, transport and install and particularly suitable for early rapid application at emergency conditions and gains time for adoption of subsequent measures.

The invention provides an automatic oiling method and system of an unmanned ship. The method and system are used for at-sea automatic oiling of the unmanned ship. The method comprises the steps that 1, the residual oil amount of an oil tank is detected by the oil receiving chip, and an oil requirement signal is sent out when the oil receiving chip needs to be oiled; 2, an oiling ship receives theoil requirement signal and sails toward the oil receiving ship until the oiling ship is in a 'sending-receiving' range of a sensor of the oil receiving ship; 3, the oil receiving ship gets close to apoint where signal reflection of the sensor is the strongest; 4, after the two ships stay side by side, an oiling device is extended to an oil receiving device of the oil receiving ship by the oilingship; 5, the oil receiving device is locked and sealed after being connected with the oiling device, and an oiling signal is sent out by the oil receiving ship; 6, the oiling ship receives the oilingsignal and conducts oiling; 7, the oil receiving ship sends out an oiled signal and completes movements of unlocking, detachment and capping on the oil receiving device after being oiled.

A long-distance landing ship mainly comprises a warship, pile legs, a telescoping gangplank rack, an elevating pulley rack, a crawler belt, a crawler belt cylinder, a cable and a cable car. The spiralcylinder principle is applied on pile legs, the telescoping gangplank rack and the elevating pulley rack so that a gangplank can be extended in a short time from a common warship floating on the sea;therefore long-distance landing is achieved to strike opponents by surprise.

The invention discloses an air-seat interface observation key technology-data real-time water surface relay communication float. The air-seat interface observation key technology-data real-time watersurface relay communication float comprises a floating ball, a cylindrical sealed cabin and a carrying platform; a cylindrical body which runs through the floating ball is arranged on the cylindricalsealed cabin; the cylindrical body extends along the vertical diameter of the floating ball; the lower end part of the cylindrical sealed cabin extends out of the floating ball; the carrying platformis fixed at the lower end part of the cylindrical sealed cabin in a sleeving manner; at least one pair of float acoustic transducers is mounted on the carrying platform; a battery pack and a working module are mounted in the cylindrical sealed cabin in sequence from bottom to top; and a cable passing passage coaxial with the cylindrical sealed cabin is arranged in the battery pack. The air-seat interface observation key technology-data real-time water surface relay communication float has the advantages that the vertical stability is high, the vertical directivity of acoustic communication andsatellite communication can be guaranteed so that measuring data are more effectively passed back to a shore station monitoring center in real time.

The invention relates to a modular intelligent self-cleaning floating dock pump station. A water getting pump is mounted on a hull, and a water outgoing pipe of the water getting pump is connected with a first water delivery rocker arm of a multistage floating pontoon. The modular intelligent self-cleaning floating dock pump station is characterized in that a water incoming pipeline of the water taking pump is connected with a vacuum water diversion tank while the water outgoing pipe is connected with a first-stage water delivery rocker arm sequentially through an extensible joint, an electricbutterfly valve and a metal soft joint, and a last water delivery rocker arm of the multistage floating pontoon type water delivery rocker arm is connected with a shoreside supporting pier through arocker arm water delivery pipe; the ship is formed by combining more than two floating body unit, each floating body unit comprises more than two sealed cabins, the floating body units are connected through two floating body connection members which are connected through bolts, the water incoming pipeline of the water getting pump is connected with a floating ball, a sewage removing pipeline higher than an inlet of the water incoming pipeline is connected on the floating ball and communicated with a filtering tank on the hull, and the filtering tank is to the vacuum water diversion tank through a water return pipe.

The invention discloses an automatic control method and device of a crane and the crane. The crane comprises a front arm, a main arm, a pull rod, a grab bucket and a portal frame. The automatic control method comprises the steps that a reference movement track of the grab bucket is obtained; according to the reference movement track, attitude information of the front arm, the main arm and the pull rod is determined; according to the posture information of the front arm, the main arm and the pull rod, the front arm, the main arm and the pull rod are controlled to act, so that the grab bucket is moved to an initial point position; position information of a to-be-transported material is obtained; and according to the position information of the to-be-transported material and the initial point position, the postures of the front arm, the main arm and the pull rod are adjusted, so that the grab bucket is moved to the position of the to-be-transported material. According to the automatic control method and device of the crane and the crane, automatic operation can be carried out according to the recorded movement track, manual operation is reduced, and the operation efficiency is improved.

The invention provides an underwater thruster. The thruster comprises a motor structure, a supporting guiding structure and one or more blades; the motor structure comprises a rotor assembly and a stator assembly; the supporting guiding structure and the blades are installed on the stator assembly and the rotor assembly respectively; the rotor assembly comprises a housing, and the blades are directly and fixedly installed on the housing in the circumferential direction, or the blades are indirectly installed on the housing after the blades are integrally shaped through arranged blade connecting members; the housing is located on the radial direction outer side of the stator assembly; the supporting guiding structure comprises a guiding pipe, and the blades are located on the radial inner side of the guiding pipe. The invention further discloses an underwater robot including the underwater thruster. By means of the underwater thruster, the core problem of waterproofing of a underwater motor is solved, a pressure resistant sealing cabin is no longer necessary to be made for a motor, the structure of the thruster is greatly simplified, and the weight, size and production cost of the thruster are effectively reduced.

The invention belongs to the field of offshore wind power engineering, and particularly relates to a construction method of an aquaculture net cage based on a built offshore wind power multi-pile bearing platform foundation. The construction method comprises the following steps that a first hoop is installed on a pile leg in a surrounding mode; a fixing piece is installed on the first hoop; the rest of hoops are installed on the pile leg along the fixing piece; and anchor chain rings of a net are installed in cooperation with the hoops, the edge of the net is bound to the fixing piece, and installation of the net is completed. The construction method has the following beneficial effects that the construction method for installing the net through the hoops and the fixing piece is low in difficulty, underwater welding operation is not needed, and the cost is saved.

The invention relates to an anti-collision device for a bridge with an arched bridge opening. The anti-collision device includes abutments or bases arranged in a front area and a back area of a bridge pier or an abutment, and anti-collision navigation frames are arranged on bearing platforms of the abutments or bases. Each navigation frame includes a streamline or beveled navigation head, a navigation framework on the channel side and penetrating the bridge opening, and a buffer device, wherein the navigation frame can be placed on a linear moving mechanism which is disposed on each bearing platform, and the buffer device is arranged on the bearing platforms and is used for force balancing or delivering. The navigation frames can be provided with weight balancing devices, auxiliary supports and high limit anti-collision frames, and roller wheel devices for navigation energy dissipation are arranged on the sides of the navigation frames. The anti-collision device has the advantages that when ships yaw and collide the navigation frames, the course can be corrected under navigation of the streamline navigation heads; when the ships exceed the high limit and collide the high limit anti-collision frames, the navigation frames will be driven to drive the linear moving mechanism and make the buffer device to act, the ships consume ship collision energy, then the ship reduce speed and anchor, and thus the bridge frame can be protected.

The invention discloses a positioning device of a welding pressure frame splicing board. The positioning device comprises a positioning platform, a left-right positioning structure and a front-back drive positioning structure. The left-right positioning mechanism comprises at least one pair of positioning pieces capable of moving along the positioning platform leftwards and rightwards. Each pair of positioning pieces include the two positioning pieces oppositely arranged on the left side and the right side of the positioning platform correspondingly. The splicing board is arranged on the portions, between every two corresponding positioning pieces, on the positioning platform, and the positioning pieces are moved leftwards and rightwards to regulate the left-right position of the splicingboard. The front-back drive structure comprises a clamping structure capable of moving forwards and backwards. The clamping structure clamps the splicing board and drives the splicing board to move forwards and backwards after left-right positioning of the splicing board. By means of the positioning device of the welding pressure frame splicing board, automatic, rapid and accurate positioning of splicing board parts can be achieved.

The invention provides an unsinkable ship, and belongs to development and manufacturing of a new ship style. That marine ship sinking accidents frequently occur mainly because the stability of the ship is low, and sinking resistance cannot be effectively achieved. Nowadays, ships are all made of steel and iron, sinking resistance is more important. The unsinkable ship comprises super large ships like an aircraft carrier and a cruise ship. The unsinkable ship is characterized in that the ship bottom is sharp; a main body ship shell is arc; multi-layer stability maintenance balance shake reducing fins are arranged below no-load water level lines outside the two side walls; permanent floating bodies which float outwards and are not resistant to impact and not resistant to air leakage are arranged above the no-load water level lines; dozens of huge inflatable safety airbags are arranged above the permanent floating bodies; the ship is further internally provided with a permanent floating cabin not resistant to air leakage to replace a water sealing cabin, while the water sealing cabin is resistant to air leakage. The ship is provided with eight sinking resistance stability maintenanceshake reducing facilities and is further provided with an intelligent full-automatic tilting adjusting alarm system, automatic tilting adjusting can be conducted in an all-weather and omnibearing mode, and it is guaranteed that the ship is steady and balanced in an all-weather mode. When the ship is confronted with extreme danger and tilting adjusting fails, the safety airbags can be automaticallystarted, and water in an air conditioner tilting cabin is drained, so that the ship never sinks.

The invention discloses a lifting platform, and belongs to the field of lifting platforms. The lifting platform comprises a base, a platform body, a hydraulic station, a shear fork mechanism, a telescopic piece, a first hydraulic oil cylinder and a plurality of second hydraulic oil cylinders. The two ends of the shear fork mechanism are fixed to the upper end of the base and the lower end of the platform body correspondingly. The telescopic piece and the first hydraulic oil cylinder are arranged on the platform body, and the telescopic piece is used for being driven by the first hydraulic oilcylinder to horizontally stretch. The multiple second hydraulic oil cylinders are hinged to a plurality of shear forks of the shear fork mechanism correspondingly. The hydraulic station is arranged onthe base, and connected with the first hydraulic oil cylinder and the multiple second hydraulic oil cylinders through a plurality of oil pipes. According to the lifting platform, it is guaranteed that work personnel can carry out work in the narrow space and stride aerial pipelines and other obstacles to operate and overhaul valves and equipment, and the operation range is large.

The invention discloses a jacket levelling construction process of an offshore booster station. The jacket levelling construction process comprises the steps that two floating cranes and a pile driving boat are matched for construction, one floating crane lifts a jacket in the whole process to ensure that the jacket is flat and close to the design requirements as far as possible, the other pile driving construction boat is utilized to drive all three auxiliary piles to given positions, then a first product pile is constructed, a method of driving one product pile and pulling one auxiliary pileis adopted to drive the piles to the design elevation in turn, a guide wheel is additionally arranged between the jacket and a foundation pile to ensure the verticality of a pile body, after four piles are all driven, and the matching of the two floating cranes is utilized to adjust the jacket to the final state to meet the design requirements. The jacket levelling construction process is reasonable, the method of driving one product pile and pulling one auxiliary pile is adopted to drive the piles to the design elevation in turn, construction is conducted while levelling, and the problem that it is difficult to level the jacket of the offshore booster station by a traditional process is solved.