459 results about "Mooring" patented technology

The invention relates to a power station on a submerged floating platform consisting of a floating structure (1) submerged at a certain depth, where it is moored by means of guy lines (2) with respect to ballasts or mooring buoys (3) located in the aquatic bed, arranging on said floating structure (1) hydraulic pumping mechanisms (5) which are operated by the weight differential of the water column between the crests and the troughs of the waves when such waves pass over them, in combination with a pneumatic system acting as a spring in said mechanisms (5) for operating an electricity-generating turbine (8) through a hydraulic closed circuit.

An ice thickness/drifting velocity observation of sea ice by using an ice thickness measurement sonar and a current meter moored into the sea and a sea ice observation by a high-resolution airborne SAR are synchronously performed, a correlation between a draft profile of sea ice passing over the sonar and an SAR backscattering coefficient profile is calculated, and an ice draft of desired sea ice is calculated from the relational expression and an SAR backscattering coefficient. As the SAR backscattering coefficient, a backscattering coefficient of L-band HV polarization may be used. A backscattering coefficient of X-band VV polarization is preferably used as the SAR backscattering coefficient to detect thin ice having a thickness of not more than approximately 10 cm.

The invention discloses a method used for realizing the integral lifting of marine engineering modules in the marine engineering field. After the module is constructed integrally, the invention makes use of floating cranes, barges and special crane beams to realize the integral lifting of modules on water by regulating the sea gauge of a main hull. Compared with the similar technology, the invention has the following advantages that the preparation of special crane beams can reduce the length of lifting cables so as to enhance the effective lifting height of floating cranes; and the adopting of the floating crane to lift the modules to the barges can avoid the use of a plurality of fittings used for conveying so as to reduce the cost. Simultaneously, the deep water is adopted to moor the main ship so as to ballast the main hull and reduce the height of the freeboard and then the high lifting capability of the floating crane is enhanced and the shipbuilding cost is reduced finally.

The invention provides a comprehensive platform with a floating type full concrete structure with an underwater storage tank for well drilling, well workover, production, public use and household. The platform has 12 different modes, and each mode consists of a liquid storage system, supporting legs, an upper facility and an anchoring leg positioning system. The platform not only has a series of characteristics and advantages, such as SPAR platform heavy draught, small waterplane area, higher center of buoyancy than center of gravity, platform natural period more than the wave period corresponding to once-in-a-century significant wave height and the like, has the function of liquid (oil) storage, and maintains the draught depth of the platform in the process of oil storage and discharge operation unchanged. The platform matched with a single-point or multi-point anchoring device can form a complete development system for production, well drilling, well workover, storage and outward transportation of offshore petroleum and natural gas; the platform not only can be used for development of an offshore large and deepwater oil-gas field with long production life, but also can be used for a small and deepwater oil-gas field with short production life, in particular the development of a marginal oil-gas field. After development of the oil-gas field is finished, the platform can be transferred and reused conveniently.

The invention discloses a float type wave energy power generating system which comprises a float platform, and a wave energy collecting power generating mechanism and a wind energy collecting power generating mechanism which attach to the float platform. The float plate is a wedge-shaped ship. A plurality of floater type wave energy collecting devices are arranged on two sides of the shell of the wedge-shaped ship. Two swing plate type wave energy collecting mechanisms are arranged on two sides of the tail of the wedge-shaped ship. A wind energy collecting device is arranged on the deck of the wedge-shaped ship. By the arrangement, the float type wave energy power generating system has the advantages that the system can be mounted offshore and in deep sea and is unlimited by water depth; the system adopts catenary single-point buoyancy mooring, the power generating device can rotate freely around an anchoring device, an automatic wave facing function is achieved, and wave energy is collected to the maximum extent; the kinetic energy and potential energy of waves and offshore wind energy can be collected efficiently at the same time and converted into electric energy by the system, and real-time collecting, monitoring and transmission of various sea energy data can be achieved.

The invention provides a winch load simulation experimental device and method for an ocean ship. The device comprises a load winch, a testing device, a hydraulic system and a control system. The load winch comprises a base, a hydraulic motor, a testing winding drum and a speed reducer, wherein the hydraulic motor, the testing winding drum and the speed reducer are mounted on the base. The hydraulic motor is connected with the input end of the speed reducer through a universal joint. The output end of the speed reducer is connected with the testing winding drum through a coupling. The hydraulic motor is connected with the hydraulic system. A mooring rope is wound around the testing winding drum, and one end of the mooring rope is connected with a to-be-tested winch after penetrating the testing device. The testing device comprises a supporting frame. A higher first pulley and two lower second pulleys are mounted on the supporting frame, and the two second pulleys are arranged on the two sides of the first pulley correspondingly. A pressure sensor used for detecting the bearing pressure of the first pulley and a rotating speed sensor used for detecting the rotating speed of the first pulley are mounted on the supporting frame. The two second pulleys press the mooring rope on the testing winding drum to the first pulley.

Arrangement for mooring, loading and unloading of a vessel, comprising: a stationary inner tower with a lower end fixedly anchored to the seabed, from where the inner tower extends upwards through the sea to an upper end over the sea level, which inner tower at level close to the seabed has through connections for hoses and cables for transfer of load and signals, which hoses and cables are brought further up through the inner tower and out of its upper end; a yoke that in one end is rotatably fastened to the inner tower, wherefrom the yoke extends further outwards to at least one outer ballastable end wherefrom moorings are arranged to keep the vessel anchored, on which vessel devices are provided to connect the vessel with the moorings and said hoses and cables for transfer of load and signals. The mooring arrangement is distinguished in that it further is comprising an outer tower with rotatable fastening to the inner tower, which outer tower from the fastening to the inner tower extends upwards outside the inner tower to a level over the upper end of the inner tower, wherein the rotatable fastening is placed below sea level and also is comprising the fastening of the yoke, such that the outer tower and the yoke as one unit is freely rotatable over and around the inner tower that is stationary anchored to the seabed; and a swivel provided between the upper end of the inner tower and the upper end of the outer tower, for rotatable transfer of load and signals with said hoses and cables between the inner and the outer tower and therefrom further to the vessel.

The invention discloses a system and method for locating an ultra-deepwater underwater stand pipe supporting pontoon. The system comprises an underwater power locating device and a pontoon tension mooring locating device; and the underwater power locating device comprises a control cable and four thrusters, and the pontoon tension mooring locating device is characterized in that a stand pipe supporting pontoon is vertically moored on a seabed by a tension mooring rope. The four thrusters are respectively arranged at four appointed positions of the stand pipe supporting pontoon to respectively take charge of lifting up and down, moving forwards and backwards and rotating the stand pipe supporting pontoon, and can freely and exactly move the stand pipe supporting pontoon to an underwater appointed position. According to the system for locating the ultra-deepwater underwater stand pipe supporting pontoon, disclosed by the invention, the stand pipe supporting pontoon is located at the underwater appointed position by power and then is fixed on the seabed by the pontoon tension mooring locating device so that the movement amplitude of the stand supporting pontoon can be reduced, and the stand pipe supporting pontoon can very smoothly stop at the underwater appointed position.

The invention discloses a manufacturing technology of an R4 grade mooring cable used on a deep sea drilling platform. The manufacturing technology comprises steps as follows: blanking, heating, ring making, flash welding, burr removing, ledge pressing, quenching and tempering, tension testing, surface polishing, non-destructive flaw testing, packing, dip coating and shipping, wherein during heating, the fine grain steel granularity is required to be maintained to be higher than three grades; the temperature difference is controlled to be plus or minus 2 DEG C; during ring making, welded junctions are spaced for 1-3 mm, the angle is 3-4 degrees, and the alignment tolerance is 0.3 mm; the burr removing precision is smaller than 3%; the difference of the reshaping size of a pressed ledge is controlled to be plus or minus 0.2 mm; a ledge is strengthened and not symmetric; and the ledge length difference is plus or minus 0.2 mm. The marine mooring cable manufactured with the manufacturing technology method has the effects of high strength and toughness, corrosion resistance and fatigue resistance.

The invention discloses a system capable of monitoring a container ship flotation condition and stability during mooring loading and unloading for multiple shore bridges. Small-amplitude ship swing motion stimulated during mooring loading and unloading and a dynamic inclination sensor loaded on a shore bridge lifting appliance are used, according to information of dock stormy waves, a dock tidal level, stow work, a ship type structure, a lifting appliance position, a sling tightness degree, rotary lock opening and closing, a lifting appliance inclination angle and the like, data monitored through multiple shore bridge lifting appliances are stacked, spliced and integrated, mooring constraints are removed, loading and unloading stimulated local free ship swing is calculated, an optimal fitting parameter of a non-linear curve model is solved, average draught data are obtained at the moment of starting operation of a box and loosening a cable, algorithms of estimating the initial stability corrected through a free liquid face and the like are used for solving a natural period, a steady-state inclination angle and the initial stability, real-time monitoring and early warning of the container ship flotation condition and the stability during mooring loading and unloading can be achieved, data reference is provided for a dock and a shipper to take stowage or ballast adjustment in time, and cargo falling into water, ship overturn, channel blockage and other accident disasters caused by dock loading and unloading work can be prevented.

The invention provides a wave power generation apparatus with an anchor chain automatic adjusting device. The wave power generation apparatus is low in construction cost. The wave power generation apparatus comprises an appendage system, an acting floating box, an anchoring system, an anchor chain automatic adjusting device and a power generation system 5. The appendage system 1 is pulled by the anchoring system 3 and can be pulled in the water; when the buoyancy force and the pull force of an anchor chain reach balance, the appendage system 1 becomes motionless in water and does not rise and fall along with waves. The power generation system 5 installed on the appendage system 1 generates electric energy because a rack or a hydraulic rod thereof moves along with the acting floating body 2. The anchor chain automatic adjusting device 4 can adjust the length of a mooring rope according to the change of tides, so that the floating bodies of the appendage system 1 can be kept at a certain position under the water surface and almost maintain a stable distance with the water surface and the acting floating body 2 can move in a certain fixed range of a support. The apparatus is relatively low in construction cost, simple to manufacture, easy to install, convenient to maintain and higher in commercial value.

The invention relates to the technical field of measurement experiment equipment, and more specifically relates to a three-degree-of-freedom decomposition mooring structure measurement experiment device. The device comprises a device frame, a Z-direction measurement system, a Y-direction measurement system and an X-direction rotation measurement system, wherein the water flow direction is set to be a y axis, the upward direction perpendicular to the water surface direction is set to be a z axis, the x axis is perpendicular to the y axis and the z axis, and the x axis, the y axis and the z axisform a right-hand coordinate system. Under the action of waves, the device frame and the to-be-measured object move up and down along the z-axis, and the to-be-measured object moves back and forth along the y-axis and rotates along the x-axis. The device is reasonable in design and simple in structure, and can effectively measure the three-degree-of-freedom motion and dynamic response of the to-be-measured object.

The invention provides a ship mooring and positioning method. Four cement piers are used for replacing existing anchors and placed underwater through steel wire ropes. Steel wire ropes on upstream underwater anchors are fixed to the shoreside, wherein the fixed points are close to the lowest water level to the greatest extent, and an anchor moored positioning winch with a constant tension function is used for adjusting the tension of the steel wire ropes. The ship mooring and positioning method meets the mooring requirement of fixed point operation in a narrow channel with obstacles on the two sides, does not affect navigation of an original river channel or proceeding of follow-up potential associated engineer operation, can bear a large wind load and current load, and can guarantee that no impact on nearby buildings on water is caused when a system partly loses efficacy. A ship can still operate normally even if the height of water is large.

The invention relates to a shallow sea self-floating acoustic releaser and a recovery method. The releaser adopts an integrally designed integral structure, and the releaser mainly comprises a main control unit, a floating body, a rope bin cylinder, a rope bin core cylinder, a cable and a locking connection cover. The main control unit is installed on the floating body, and the floating body is placed above the rope bin cylinder; the cable is uniformly wound in the rope bin cylinder, one end of the cable is connected with the floating body, and the other end of the mooring rope is connected with a hanging ring mounted on the locking connecting cover; the locking connecting cover and the rope bin core cylinder are fixed below the rope bin cylinder; the main control unit locks the locking connecting cover through the releasing mechanism installed below the main control unit, so that the locking connecting cover and the main control unit are integrated, and the lower end of the locking connecting cover can be connected with an ocean instrument equipment platform frame; and after the main control unit is separated from the locking connecting cover, the floating body quickly floats to the water surface, and after finding the floating body, a water surface searcher can pull the mooring rope through a shipborne winch to recover the marine instrument platform.

The present invention relates to a method by which a computing means monitors a harbor, and a harbor monitoring method, according to one aspect of the present invention, comprises the steps of: acquiring a harbor image; generating a segmentation image corresponding to the harbor image; generating a display image corresponding to the harbor image and having a first view attribute; generating a conversion segmentation image, which corresponds to the segmentation image and has a second view attribute different from the first view attribute; matching the display image so as to generate a panoramic image; matching the conversion segmentation image so as to generate a matching segmentation image; calculating ship mooring guide information on the basis of the matching segmentation image; and outputting the mooring guide information together with the panoramic image.

The virtual anchoring navigation control means that a wave glider performs virtual anchoring control within a certain range of an anchoring point, marine data can be conveniently obtained for a long time, and a marine environment can be conveniently detected. An algorithm comprises the steps of setting a virtual anchoring center point, introducing a virtual mooring error circle, and giving an error circle radius R; carrying out curve discretization on the virtual mooring error circle, which means converting circular curve trajectory tracking into linear path tracking for tracking a plurality of target points, allowing a compass to collect a current course angle psi, allowing a GPS module to perform positioning on the wave glider in real time, calculating an expected course angle psi los byan LOS algorithm, inputting a course difference between an actual course angle and an expected course angle into a PID controller, solving a current expected rudder angle delta and executing steering; and after the wave glider enters the error range of the target point, switching to a next target point, and performing continuous target heading point tracking. According to the invention, a virtualanchoring navigation control algorithm is designed to eliminate precision errors caused by an external environment during anchoring, and through the continuous tracking of a target heading point, thereentry into the anchoring state can be achieved when deviating from the anchoring state.

The invention discloses a sargassum thunbergii cofferdam culture device and culture method. The sargassum thunbergii cofferdam culture device comprises a transmission component, a regulation component and a suspension component, wherein the transmission component comprises a transmission pulley, an auxiliary pulley and a regulation pulley, all pulleys are connected with one another through a mooring rope, the transmission pulley is connected with a power source device, and the auxiliary pulley is used for supporting the mooring rope; the regulation component comprises a regulation rail and a regulation support, wherein the regulation rail is fixed on the shoreside ground of a cofferdam, the regulation support and the regulation rail are in sliding connection, and the regulation pulley is connected onto the regulation support; the suspension component comprises a seedling hanging piece, a floating ball and a weight object, wherein the seedling hanging piece is fixedly arranged on the mooring rope, and the mooring rope near the seedling hanging piece is provided with the floating ball and the weight object for keeping the mooring rope which droops into water horizontal. Water course regulation and the daily management of seedling curtains can be conveniently and quickly realized without a condition that boats go to sea, the inconvenience of mariculture management can be overcome, and labor efficiency is improved so as to be favorable for lowering culture production cost.

The invention discloses a bottom sitting type cylindrical deep off-lying sea pasture movable management platform, and relates to the technical field of marine platforms. The bottom sitting type cylindrical deep off-lying sea pasture movable management platform comprises a deck and an anchoring and mooring assembly, wherein an upper part platform is arranged on the deck, a cabin body for adjustingand controlling the spacing between the deck and a water surface is connected to the lower part of the deck through vertical columns which are uniformly distributed, and supporting rods are connectedbetween the vertical columns in a stagger manner; the anchoring and mooring assembly comprises anchor ropes arranged on the periphery of the deck, wherein each anchor rope is connected with a corresponding first anchoring and mooring member arranged on a seabed; scouring prevention plates are arranged on the outer side of the cabin body; the bottom ends of the scouring prevention plates are levelwith the bottom surface of the cabin body, and an inclined angle is formed in the scouring prevention plates and the side surface of the cabin body; and skidproof assemblies are uniformly distributedon the bottom surface of the cabin body. According to the bottom sitting type cylindrical deep off-lying sea pasture movable management platform disclosed by the invention, shore breeding is further developed to deep off lying sea breeding, so that the ecological environment bearing capacity of shore and land is alleviated, the platform is stable to ascend and descend, and in the using process, the platform is low in influence by waves.

The invention provides a device for monitoring seabed shallow sediment erosion resuspension in an internal wave environment. The device comprises a snorkeling system, an observation platform and a supporting system, the snorkeling system comprises a glass floating ball combination, a mooring rope, a subsurface buoy, a Kelvar cable and a limiting cylinder. The observation platform comprises a middle supporting rod, a stabilizing circular ring, a supporting rod, an acoustic Doppler current profiler, a sediment capturer, a circular ring with a hole, an optical backscattering turbidity meter, a battery bin, a conductivity-temperature-depth meter, a supporting plate and an acoustic Doppler velocimetry. The supporting system comprises a buffering device, a vertical supporting rod and a gravity anchor. According to the technical scheme of the invention; the device aims to directly reach the seabed to collect and obtain accurate suspended sediment concentration information on the basis of notdestroying the seabed environment. The influence of the seabed on the internal solitary wave suspended sediments is discussed; and the device is good for evaluating the suspension quantity caused by internal solitary waves and the influence on the seabed deposition process, is good for further predicting the seabed evolution, is good for accurately describing the sediment movement and improving the sediment resuspension quantity prediction level in application, and also provides a new technology and means for sediment resuspension research.

The invention relates to the field of marine resource research, in particular to a marine fouling organism sampling research device and an underwater long-term monitoring device. The underwater long-term monitoring device comprises a fixing assembly, an underwater releaser, a mooring rope, a floating ball and a marine fouling organism sampling research device. The fixing assembly is connected to the underwater releaser, and the marine fouling organism sampling research device is arranged on the mooring rope. Under the action of gravity of the fixing assembly, the fixing assembly sinks into theseabed. The floating ball floats on the sea surface, so that the mooring rope and the marine fouling organism sampling research device mounted on the mooring rope are suspended in the sea. The marinefouling organism sampling research devices are arranged on the mooring rope at intervals in the length direction of the mooring rope; the marine fouling organism collecting device can suspend at different depths of the sea, can collect fouling organisms at different depths of the sea, and can provide samples for researching the variety and distribution of the marine fouling organisms and the relationship between the marine fouling organisms and marine hydrodynamic force, thereby providing a theoretical basis for activities such as marine scientific fundamental research and marine economy.