449results about "Towing/pushing equipment" patented technology

A control system for a towed object (1, 6; 20; 30; 50) in or on a body of water comprise one or more towing members (3) extending between the object (1) and a towing vessel (2). One or more ballast members (4) are movably connected to a respective one of said one or more towing members (3) and controllably movable at least a distance along its respective towing member. The towed object (1) may be controlled by moving one or more ballast members (4) on a towing member (3) in order to control the catenary (c) of a towing member (3). Individual ballast members (4) may be manipulated individually in order to correct, preserve or otherwise change the geometry of a trawl.

A floating object cleanup device includes a collection vessel, two towing vessels with built-in power systems, and two intercepting arms. The collection vessel and the two towing vessels are hooked together by the two intercepting arms. Each of both sides of the collection vessel is provided with an intercepting arm tightening assembly and an arm supporting member. The intercepting arm tightening assembly includes rotating shaft sleeves, positioning blocks, a rotating shaft, and tightening arms. Multiple rotating shaft sleeves are fixed to positions, adjacent to the top, on a side surface of the collection vessel through the positioning blocks. The rotating shaft penetrates all the rotating shaft sleeves located at one side of the collection vessel, and an elastic member is positioned at a position where the rotating shaft contacts with the rotating shaft sleeve.

A system for removing contaminants from a body of water, may include a vessel, having contaminant cleanup and recovery equipment that may have at least one intake port capable of removing floating contaminants from the body of water to be transported to the recovery vessel. The system may further include a first towboat and a second towboat. The system may also include a first containment boom capable of being connected to the first tow boat and to a starboard side of a vessel. The system may also include a second containment boom capable of being connected to the second tow boat and a port side of the vessel, such that during operation the first and second towboats extend out from the vessel such that the first and second containment booms gather the floating contaminants from the body of water and channel them to the at least one intake port.

The present invention includes systems and methods for a continuous-wave (CW) radar system for detecting, geolocating, identifying, discriminating between, and mapping ferrous and non-ferrous metals in brackish and saltwater environments. The radar system (e.g., the CW radar system) generates multiple extremely low frequency (ELF) electromagnetic waves simultaneously and uses said waves to detect, locate, and classify objects of interest. These objects include all types of ferrous and non-ferrous metals, as well as changing material boundary layers (e.g., soil to water, sand to mud, rock to organic materials, water to air, etc.). The radar system (e.g., the CW radar system) is operable to detect objects of interest in near real time.

The invention belongs to the field of ocean engineering, and discloses a modularized movable energy storage power supply platform for ocean offshore power utilization facilities and a use method of the modularized movable energy storage power supply platform. Comprising a modularized energy storage floating body, a flow guide module, a spherical hinge connector, a mechanical arm, a connecting rod and a tugboat. Clean energy obtained from an offshore wind driven generator and a photovoltaic platform is used for charging and is towed to an offshore facility through a tugboat for power supply. The platform adopts a modular design, connection and disassembly of modules are realized through a combined design of a spherical hinge connector and a mechanical arm, floating bodies are flexibly increased and decreased according to power demands of different facilities, and efficient energy storage and stable power supply are realized. The modular design enables the platform to have flexibility and expandability, and can meet the power supply requirements of ocean offshore facilities of various scales and types. The platform not only reduces the high cost of submarine cable laying, but also improves the environmental protection property of power supply, reduces the dependence on traditional energy such as diesel power generation, and promotes the application and sustainable development of clean energy.

The invention relates to a device (20) for unloading and / or recovering an unmanned underwater vehicle from the water (30) onto a platform (24). The device comprises a boom (26), a cable winch (28) which is secured to the boom, and a multistage anti-sway system (32). The boom (26) is designed to project beyond the edge of the platform (24), the cable winch is designed to pull the unmanned underwater vehicle (22) substantially perpendicularly out of the water (30), and the multistage anti-sway system (32) is designed to reduce a swaying movement of the unmanned underwater vehicle (22) when the unmanned underwater vehicle (22) is completely suspended in the air on the cable winch (28). The boom (26) has a receiving area (41) for the unmanned underwater vehicle (22), and one stage of the anti-sway system (32) is designed to fix the unmanned underwater vehicle (22) in the receiving area (41).

The invention relates to a method for assisting a cutter suction dredger to pass through a narrow channel by a grab dredger. Comprising the following steps that S1, the stern of the cutter suction dredger is adjusted to face a channel, when the vertical distance between the center of three cable columns of the stern and an inlet of the channel is d1, the cutter suction dredger stops moving, a lower steel pile keeps the position of the dredger, two transverse moving anchors of the bow are thrown, two transverse moving cables are tightened, and anchor braking is completed; s2, the grab dredger slowly gets close to a channel outlet under the assistance of the auxiliary ship, the direction of the grab dredger is adjusted, the body of the grab dredger is transversely arranged at the channel outlet, and when the distance between the stern of the cutter suction dredger and the side of the grab dredger is L1, the lower steel pile of the grab dredger is positioned; s3, the cutter suction dredger lifts the steel pile, a near-side anchor cable winch of the grab dredger takes up a cable, the cutter suction dredger transversely moves a winch to synchronously pay off the cable, the cutter suction dredger slowly moves into the channel, and when the distance between the stern of the cutter suction dredger and the ship side of the grab dredger is L2, the grab dredger stops taking up the cable, the cutter suction dredger stops paying off the cable, and the cutter suction dredger descends the steel pile to be positioned; s4, the grab dredger lifts the steel pile, a far-side anchor cable winch of the grab dredger takes up a cable, a near-side anchor cable is synchronously paid off, the grab dredger slowly gets away from the cutter suction dredger, when the distance between the stern of the cutter suction dredger and the ship side of the grab dredger is L1, the grab dredger stops moving, and the grab dredger is positioned under the steel pile; and S5, repeating the steps S3 and S4. According to the method for assisting the cutter suction dredger in passing through the narrow channel through the grab dredger, the feasibility and safety of operation when the suction dredger passes through the narrow channel are improved.

The invention discloses a towing operation system and method. The system comprises a towing winch and an anti-loosening device which are arranged on a lower deck in a cabin, and a cable guide device, shark pincers, a stern limiting pin, a height limiting device and a swing stopping device which are arranged on an open-air upper deck; a steel cable and a rope guider are arranged on the towing winch; the anti-loosening device is used for enabling the steel cable to always keep certain tension under the condition that the cable end is not loaded; the cable guiding device comprises a pulley, a pressing wheel and a protective cover, the protective cover covers the cable outlet hole and the pulley, and during operation, the steel cable upwards penetrates out of the cable outlet hole, then bypasses the top of the pulley downwards, penetrates out of the rear side hatch and then bypasses the bottom of the pressing wheel; the height limiting device is used for limiting the height of the point position of the steel cable at the shark pincers; and the oscillation stopping device is used for stopping oscillation of the steel cable. According to the system, the height of a steel cable outlet point can be lowered, water can be prevented from leaking into a cabin from waves on an upper deck, a cable outlet hole is protected against wind and rain, the steel cable can be prevented from being disordered and being scratched with a stern A-shaped frame, and a buoy or a towed ship can be safely replaced under the condition that the steel cable is not unloaded.

The invention relates to the technical field of detection towed body release, in particular to an emergency release device of an underwater towing system. The underwater towing system comprises a depth-keeping towed body and a detection towed body, the detection towed body and the depth-keeping towed body are connected through a photoelectric composite cable, the photoelectric composite cable is composed of a towing cable and a communication cable, and the communication cable is connected with a detection instrument in the detection towed body through a plug connector male head and a plug connector female head which are mutually plugged; the emergency release device is arranged at one end in the detection towed body and comprises a towing cable release mechanism and a communication cable release mechanism; the driving piece drives the trailing cable releasing mechanism to be separated from the trailing cable and drives the communication cable releasing mechanism to be separated from the communication cable; the emergency release device is suitable for releasing the detection towed body in an underwater towing system, depends on a mechanical transmission structure, is stable and reliable, and can realize autonomous separation of the detection towed body when an emergency situation or communication loss occurs, so that the safety and the recovery rate of the detection towed body are improved, and the potential heavy loss is reduced.

The invention relates to the technical field of underwater detection, and discloses a high-stability underwater detection towing system based on active and passive cooperative compensation, which comprises an overwater mother ship, an electric winch arranged on the overwater mother ship, a first towing cable, a weight buffer, a second towing cable and a detection towed body, one end of the first towing cable is connected with the electric winch, and the other end is connected with the ballasting buffer; one end of the second towing cable is connected with the ballasting buffer, and the other end is connected with the detection towed body. According to the invention, stable carrying and high-precision data acquisition of underwater detection equipment can be realized, and multi-scene underwater detection requirements are met.

The emergency towing device of the LNG fuel transport ship is arranged on an upper deck and a second deck, a mounting seat is welded to the axis of a ship body of the upper deck, the mounting seat is fixedly connected with a chain stopper through a bolt, a first cable guide hole is welded to the axis of the ship body of the upper deck, and an anti-friction chain is connected to the middle of the chain stopper in a penetrating mode. A first storage box is arranged on one side of the upper deck, a crane is welded to the position, between the first fairlead and the first storage box, of the upper deck, a winch is welded to the axis of the second-deck ship body, a towing pile is welded to the axis of the second-deck ship body and located behind the winch, a second fairlead is welded to the axis of the second-deck ship body, and a second fairlead is welded to the axis of the second-deck ship body. And a second storage box is arranged on the second deck on one side of the second fairlead, a winding drum is installed in the second storage box, the winch is rotationally connected with a retrieval rope, and one end of the retrieval rope is fixedly connected with a towing rope. The utility model has the characteristics of strong maneuverability and convenience in operation.

A watercraft comprises a motor, an inertial mass, and a fin. The motor oscillates the inertial mass about an axis, producing a torque reaction on and oscillation of the motor. Oscillation of the motor is communicated to the fin, producing thrust. The system can be operated in reverse, to generate electric power when the system is in a flowing stream of thrust fluid.

The utility model relates to a quadrilateral structure floating platform, and belongs to the technical field of ocean engineering, the quadrilateral structure floating platform comprises a floating platform, the floating platform comprises a first floating body module, a second floating body module and a third floating body module, and the two ends of the first floating body module are fixedly connected with the second floating body module and the third floating body module through bending modules; a first buoy is arranged at the top of the floating platform, a traction body is arranged on the floating platform, and the traction body and the floating platform are fixedly connected to form a quadrilateral structure. Before the floating platform is thrown to the sea surface, the first floating body module, the second floating body module, the third floating body module and the bending module can be separately transported on the shore, when the transportation equipment drags the traction body on the sea, water flow can freely pass through the hollow part, the resistance of the water flow to the floating platform is reduced, the hydrodynamic performance is good, and the floating platform can be conveniently unfolded in a preset sea area.

A tow attachment for a watercraft is disclosed. The tow attachment is configured to attach a tow rope to the watercraft, and has a first part and a second part that is connected to the first part by a connecting portion. The first part is configured for rigid connection to the watercraft, and the second part is configured to attach to the tow rope. The second part disconnects from the first part about the connecting portion in response to the tow rope applying a load above a predetermined load to the second part. A tow pylon assembly having a tow pylon and the tow attachment connected to the tow pylon is also disclosed. A watercraft with the tow attachment and a watercraft with the tow pylon assembly are also disclosed.

The invention discloses a pushing boat and barge efficient combination butt joint device which comprises a barge butt joint piece arranged on a barge, the barge butt joint piece comprises a barge butt joint matching piece and a matched butt joint adjusting piece, the barge butt joint matching piece is arranged on the barge and driven by the connected matched butt joint adjusting piece, and the barge butt joint matching piece is arranged on the barge and driven by the matched butt joint adjusting piece; the vertical movement is realized as required; the pushing butt joint piece is arranged on the pushing ship, the pushing butt joint piece comprises a pushing telescopic power piece and a butt joint pushing piece, and the pushing telescopic power piece is arranged on the pushing ship and drives the butt joint pushing piece connected with the pushing ship to be connected with the barge butt joint matching piece in a matched mode, so that the pushing ship and the barge are combined in a butt joint mode. The device is reasonable in structural design, high in automation degree, high in butt-joint success rate of the pushing ship and the barge, high in combined butt-joint efficiency and small in influence of sea surface waves on the combined butt-joint process.

The utility model belongs to the technical field of ships, and particularly relates to a ship landing refitting device which comprises a slipway. The slipway is arranged on a wharf, and two first rails are symmetrically arranged on the slipway; two second rails are symmetrically arranged on the launching barge, and a rail trolley system is arranged on the two second rails; the mooring system is arranged on the launching barge, and the anchoring system is arranged on the launching barge. By arranging the launching barge and the rail trolley system, a ship can be supported and move on the second rails, by arranging the mooring system and the anchoring system, the launching barge and a wharf can be in a relatively static state, the rail trolley system moves on the two first rails and the two second rails, and the ship is transported to a berth. The purpose that the ship is constructed from the underwater area to the land area slipway is achieved, the design form is convenient to construct, the special requirements for ship refitting and repairing are met, and meanwhile the cost is low.

The invention discloses a towing safety control system based on a helicopter platform. The towing safety control system comprises a central control module, a winch, a towing cable, a shear cutter and an altimeter, the towed body is located in water, one end of the towed cable is wound on the winch, and the other end is connected with the towed body; the cutting knife and the helicopter platform are relatively fixed, and the knife edge faces the towrope; the altimeter is located on the towed body and used for collecting the distance between the towed body and the bottom and transmitting the distance to the central control module. A tension sensor is arranged on the winch and used for collecting the tension of the towing cable in real time and transmitting the tension to the central control module; when the distance between the towed body and the bottom is smaller than a set value I or the decreasing speed of the distance between the towed body and the bottom is larger than a set value II and the tension of the towed cable is larger than a set value III, the central control module can control the shear cutter to cut the towed cable; and when the tension increasing speed of the towing cable is greater than a set value IV, the central control module can control the cutting knife to cut the towing cable. According to the invention, the towing safety of the helicopter platform can be improved.

A method of transporting a first vessel having wind turbine components to an offshore installation vessel. The method includes (i) securing the first vessel to a second vessel using a first tow line attached to a front end (or bow) of the first vessel, and (ii) securing the first vessel to a third vessel using a second tow line attached to a back end (or stern) of the first vessel. The method further includes transporting the first vessel to the offshore installation vessel using the second vessel and the third vessel secured to the first vessel via the first and second tow lines, respectively. The method also includes securing the first vessel to the offshore installation vessel. The first vessel can include one or more fender walls. The first vessel can be secured to the offshore installation vessel using one or more mooring lines.

A marine apparatus includes a self-propelled vessel; a skimmer configured to actively remove hydrocarbons from a water surface when energized and to store the removed hydrocarbons in a retention tank of the skimmer; a holding tank; and a pump configured to pump hydrocarbons removed from the retention tank into the holding tank when energized.

The invention discloses a limiting structure for connection and disconnection of a drilling platform and a construction method thereof.The limiting structure for connection and disconnection of the drilling platform comprises a plurality of limiting towing wheels, limiting towing cables of the limiting towing wheels are connected with limiting rigging, a plurality of column legs are arranged on the drilling platform, the limiting rigging is connected to the column legs on the drilling platform, and the limiting towing cables of the limiting towing wheels are connected with the limiting rigging. The plurality of limiting tugs are all connected with the drilling platform; the length of the limiting towing cable is adjusted, and the drilling platform is limited in the horizontal direction so that the drilling platform can be connected to the seabed through an anchor chain; and the heading directions of the limiting tugs are adjusted, and the tightness state of connection between the anchor chain of the drilling platform and the seabed is changed, so that connection between the anchor chain in the moving direction of the limiting tugs and the drilling platform is released. According to the limiting structure for connection and disconnection of the drilling platform, the limiting rigging is connected with the drilling platform, the limiting rigging is high in durability and can be continuously stressed for a long time, interference between the limiting tug and a main workboat is avoided through the limiting tug, and the construction efficiency is improved.

A method for assisting the guidance of a surface vessel intended to tow an underwater device, the method includes a) discretizing the geographical sector around the surface vessel into a plurality of zones, with each zone being classified according to a degree of accessibility from among a set of degrees of accessibility; b) computing a set of candidate trajectories of the surface vessel in the geographical sector, with each candidate trajectory corresponding to a different gyration rate from the current position of the surface vessel; c) classifying each candidate trajectory as a function of the degree of accessibility of the zone of the geographical sector traversed by the possible trajectory, and as a function of the feasibility of one or more predefined actions on the candidate trajectory; d) generating a display of the zones and of the candidate trajectories on a human-machine interface, as a function of their classification and / or a transmission of instructions relating to the actions.

A towing device for a rider on a body of water comprises a buoyant platform having at least one electric motor and a prop. A container fixed with the towing device contains a controller to power each electric motor. A wireless remote control sends wireless commands to the controller. A tow rope is fixed with the buoyant platform proximate the rear end. As such, with the rider holding the wireless remote control and engaged with a distal end of the two rope, commands from the wireless remote control are sent to the controller to control power to each electric motor. Preferably the towing device further includes a pivotable rudder that is disposed behind the prop, or a steering nozzle, and the wireless remote control has a steering control to send steering signals to the controller. Various modes of operation of the towing device are disclosed.

The Boating Accessory is a multi-use fastener designed to attach to various surfaces or objects on a boat. The Boating Accessory may include a body hingedly connected to an arm with a suction mechanism that can be used to secure a corner onto either fiberglass or window glass. The Boating Accessory may include a clip with a rounded portion that can be used to attach to most stainless handles or deck railing with a strong spring for clamping. The clip is useful in attaching to fabrics or hard roofs with a friction member at the contact point. The multi-use fastener may be used to secure a shade anywhere on a boat to immediately and effectively block the sun's rays. When the sun moves lower to the horizon, the multi-use fasteners can be quickly repositioned.

The invention is suitable for the technical field of ship control, and provides a berthing motion control method of a towing system, the towing system, equipment and a medium, the method comprises the steps that state information of the towing system at the current moment is acquired, and the state information comprises the state of a tugboat, the state of a barge and the towing cable pulling force between the tugboat and the barge; generating a state space vector of the towing system according to the state of the tugboat and the state of the barge; inputting the state space vector and the towing cable tension into a pre-established Markov decision process model to obtain an action space vector of the tugboat; and carrying out berthing control on the towing system based on the action space vector. According to the invention, efficient, stable and safe barge dragging system berthing operation can be realized.

A device (20) for launching and / or recovering an unmanned underwater vehicle from the water (30) onto a platform (24) is disclosed. The device comprises a boom (26), a cable winch (28) attached to the boom, and a multi-stage anti-sway system (32). The boom (26) is designed to project beyond an edge of the platform (24). The cable winch is designed to pull the unmanned underwater vehicle (22) substantially vertically out of the water (30). The multi-stage anti-sway system (32) is designed to reduce swaying of the unmanned underwater vehicle (22) when the unmanned underwater vehicle (22) is suspended completely in the air from the cable winch (28). The boom (26) has a receptacle (41) for the unmanned underwater vehicle (22). One stage of the anti-pendulum system (32) is designed to fix the unmanned underwater vehicle (22) in the receptacle (41).

A coupler for coupling a marine vessel line and a tugboat line is provided. The coupler includes a coupling zone for receiving the marine vessel line and the tugboat line. A guide is configured to receive a connector and guide the connector around the coupling zone to wrap the connector around the lines. A securing member is configured to secure the connector to the lines such that the lines are coupled. The securing member is upstream of the guide and is configured to bend the connector prior to the connector being received by the guide.

The invention discloses an underwater towed geomagnetic measurement system and a data timing method, and belongs to the field of underwater geomagnetic detection. The system comprises a towing boat, a monitoring control unit and a geomagnetic measurement device, the monitoring control unit is arranged on the towing boat, and the geomagnetic measurement device is connected with the monitoring control unit through a photoelectric composite cable. The monitoring control unit comprises a monitoring computer, a first GNSS antenna, a GNSS taming clock module, a first photoelectric conversion module, a first ultra-short baseline positioning beacon and a shipborne power supply. The geomagnetic measurement device comprises a magnetometer, a second photoelectric conversion module, a controller, inertial navigation equipment, a second GNSS antenna, a depth meter, a Doppler log, a second ultra-short baseline positioning beacon and a power conversion module. According to the underwater towed geomagnetic measurement system and the data timing method provided by the invention, high-precision geomagnetic measurement data can be obtained, accurate timing can be carried out on the geomagnetic measurement data, and the reliability is high.

A system and method for assisting a drag operation of a floating wind turbine (FWT) is disclosed. The FWT is provided with a wireless communication system and at least one position sensor for measuring the position of the FWT in at least three degrees of freedom. The main towing vessel is connected to the floating wind turbine by a towing line. The main dragging ship comprises a winch, a DP system and a two-way wireless communication system. A drag assist system / module / controller may be combined with a DP system. The one or more auxiliary drag vessels are connected to the floating wind turbine by drag lines. And one or more auxiliary dragging ships are provided with a two-way wireless communication system. A drag assist system / module / controller calculates setpoints (forces and directions) for all drag ships based on one or more input parameters from the floating wind turbine, one or more input parameters from each auxiliary drag ship, and one or more input parameters from the main drag ship.

A hull for a vessel for towing is disclosed, comprising a deck and a towing staple for guiding a towing line. The towing staple comprises a guiding element having a symmetrical extension in a first plane parallel to the deck, wherein the guiding element comprises a first and a second mounting section mounting the guiding element to the hull. The first and second mounting sections are connected by means of a main section of the guiding element. The guiding element comprises a towing line guiding surface located on a bottom side of the main section facing the deck, the towing line guiding surface being configured to, during a towing procedure, slidably contact the towing line, such that the towing line can freely move along a periphery of the main section in the first plane while being restricted in movement by the main section in a direction perpendicular to the first plane. The towing staple further comprises a support element, wherein the support element is arranged on a top side of the main section and extends at an angle to the first plane from the top side of the guiding element to a second plane perpendicular to the first plane and extending through the first and second mounting sections.

The utility model discloses a breeding work ship which comprises a ship body, a traction device arranged on the ship body, a lifting device arranged on the cabin, a lifting channel arranged on a deck corresponding to the lifting device, and a sealing outlet door arranged on an outlet of the lifting channel. A vacuum fish suction pump and a lifting machine are arranged on a deck of the ship body, a fish discharging opening of the vacuum fish suction pump is connected with a fish sorting machine, a fish outlet of the fish sorting machine is communicated with an outer sliding way, and a containing box is arranged at the other end of the outer sliding way. The cabin comprises a heat preservation fish bin, a transportation bin, an equipment cabin and other function bins, the other end of the outer sliding way is arranged on the upper portion of the heat preservation fish bin, the containing box is arranged in the heat preservation fish bin, aquatic products in the breeding platform are caught through the vacuum fish suction pump, the aquatic products are directly put into the heat preservation fish bin through the fish sorting machine and the outer sliding way, labor loss is effectively reduced, and breeding benefits are improved.