2981 results about "Deep sea" patented technology

Deployable submarine hydroelectric generator for conversion of kinetic energy of deep ocean currents into electricity by having an electric generator mounted in a sealed hydrodynamic, buoyant vessel with tail fins, and connected by a shaft to a rotary turbine blades at the tail end of the submarine vessel, which vessel is anchored at desired depth to the bottom of the ocean by a cable. The drag of the turbine blades causes the vessel to self-steer against the direction of the ocean current. An electric cable is also provided, connecting said electric generator with electric grid on the land. Such generator is out of sight, unlike windmills, and is environmentally friendly to the sea life, due to slow rotating blades. This clean electricity can also be used for production of low cost hydrogen by electrolysis of sea water.

The invention provides a deep-sea machinability solid buoyancy material and its method for preparing, in which the said solid buoyancy material includes epoxide resin; flexibilizer; curing agent; accelerating agent; dispersing agent; deflocculating agent; hollow zeeosphere and coupling agent, and the hollow zeeosphere can be ceramic and/or glass zeeosphere; the hollow of the said hollow glass zeeosphere is filled with gases or vacuum; the weigh parts of the hollow zeeosphere are: 15-90; the weigh parts of the said epoxide resin are: 82-98. The method consists of adding each component into kneader, heating to 80-100 DEG C, agitating to be even; taking-up the even mixtures into the die to consolidate, then laying them into the curing press for heating and forcing, after solidified modeling, producing the needed solid buoyancy material according to the requirement. The buoyancy material can be sawed, dug, grinded, milled and adhibitted and the standard model can be produced to various shapes according to the drawing requirement to meet the application needs.

The invention discloses a penetration probe-based deep sea multi-element comprehensive observation system, which comprises an upper computer and a data recovery cabin, wherein the upper end and the lower end of the data recovery cabin are connected with a probe rod through a hydraulic separation releaser and a launching device respectively; a small-sized pile driver is arranged in the launching device; the launching device is provided with an underwater search light, an underwater camera and an underwater acoustic communication transceiver; the top of the data recovery cabin is provided with a floating body; a central controller is included in the data recovery cabin; the outer side face of the data recovery cabin is provided with an underwater acoustic transducer; and the outer surface of the probe rod is provided with more than 10 annular electrodes and more than 2 pore water pressure sensors which are connected with the central controller. The system has a simple structure, is reliable in work and accurate in control, can carry various sensors and adapt to a deep sea high pressure environment, and can synchronously and automatically observe and record states and changes of sea water and sediments within a 10m depth range close to a sea water-sediment interface with over 2,000m water depth, including the state of sediments of 6-7m below a sea bottom surface, the condition ofsea water of a bottom layer of 3-4m above the sea bottom surface and the dynamic change in position of the sea bottom surface.

The invention discloses an automatic tail end docking device and method for deep sea AUV docking. The device comprises an acoustic guide unit, a monocular vision guide unit and a rotatable connection platform control unit. The acoustic guide unit is used for achieving acoustic communication and positioning of a connection platform and a deep sea AUV, and automatically guiding the deep sea AUV in the remote range to the position near a connection platform. The monocular vision guide unit is used for guiding the deep sea AUV in the close range into the connection platform. The rotatable connection platform control unit is used for monitoring and controlling the direction of a horn mouth guide barrel. According to the automatic tail end docking method, influences of surroundings on the connection process are reduced, and the requirement for the deep sea AUV maneuvering characteristics is lowered, so that the deep sea AUV connection docking success rate is greatly improved, and the underwater connection technology of the deep sea AUV and the connection platform is improved.

The integrated deep sea sediment sampling and holding device includes sampling mechanism comprising weight mechanism, hoisting mechanism, sampling and holding barrel, energy accumulator and tongue mechanism; and sealing bin comprising bin body, flap valve, lower end cap, lower gland and turned cone. It has combined sampling and pressure holding barrel with sealed upper and lower ends, compact structure, relaxed hoisting requirement, and raised pressure and bending strength of the barrel. The device can sample sea bed sediment as well as water, gas, natural gas, etc., and hold the temperature, pressure and sample components and state, and is released and recovered with geological winch on ship and without needing other power source. It has also pressure releasing valve and gas separator interface for separating dissolved gas in sample and post-treatment.

A method and apparatus for controlling drilling mud density at a location either at the seabed (or just above the seabed) or alternatively below the seabed of wells in deep water and ultra deep water applications are disclosed. The present invention combines a base fluid of lesser density than the mud required at the wellhead to produce a diluted mud in the riser. By combining the appropriate quantities of drilling mud with base fluid, a riser mud density at or near the density of seawater may be achieved. The present invention also includes a wellhead injection device for attachment to the wellhead and for injecting the base fluid into the rising drilling mud at a location below the seabed. The riser charging lines are used to carry the low density base fluid to the injection device for injection into the drilling mud below the seabed. The cuttings are brought to the surface with the diluted mud and separated in the usual manner. The diluted mud is then passed through a centrifuge system to separate the heavier drilling mud from the lighter base fluid.

A preparation method of a deep sea cable filling strip relates to a preparation method of a conductor filling strip. The preparation method comprises the following process steps: mixing rubber, a vulcanizing agent, a vulcanization accelerator, an antiager, a plasticizer, a reinforcing filler and a tackifier in parts by weight; and then calendering, slitting and packaging to obtain the finished product. The method has a simple production technology, stable technical properties and high practicability; the product is used in the cable and the cable core of the optical cable, the product has high strength, uniform thickness and a good saturated water absorption effect and has the functions of shielding and buffering the electric field; and the product also has viscoelasticity, thus the filling cable core is stronger and the service life of the optical cable can be prolonged.

The invention is about a deep-sea solar energy diving instrument. It includes: the diving instrument body, the glider vane or solar panel, the main thruster and the vertical stable empennage; the glider vane or the solar panel are installed on the diving instrument back; the main thruster is set in the middle vertical axis of the diving instrument; it also includes the permeable shell out of the main body, which has the flotage adjusting system, the barycenter adjusting system and the pressure capsule, the velometer, the depth gauge, the sonar responder near to the head, the altimeter near to the bow and the sonar transducer near to the tail part. The solar energy is the main driving mode and the big angle gliding technology driven by the flotage is the assistant driving mode. So it has the low energy cost, long endurance time and wide work field to improve it's investigate ability in deep sea.

The invention relates to an inertia measurement device for deep-sea inertia navigation, which consists of six accelerometers, three gyros, a sensor bracket, a damping material, damping internal and external brackets and a mounting surface. The accelerometers and the gyros are arranged at the regular hexahedral sensor bracket. The damping internal bracket is fixed at the sensor bracket, the damping material is fixed at the damping internal bracket, the internal bracket is connected with the external bracket through the damping material and finally connected to the mounting surface, and the mounting surface is provided with a positioning surface for positioning at initial alignment. The measurement device is used for measuring the inertia of the deep-sea inertia navigation, and has the advantages of high precision and good damping property.

The invention provides a deep sea net cage culture integrated platform which comprises culture net cage subsystems which perform the fish culture function and composed of anti-wind wave net cages, a power supply subsystem using solar energy and wind energy to generate electricity, a supporting platform for fixing the power supply subsystem and the culture net cage subsystems in the special space and an anchoring subsystem. The power supply sub-system is installed on the supporting platform; the net cages are connected with the supporting platform in a flexible connecting mode, the anchoring subsystem is composed of a power supply subsystem anchoring device and a net cage subsystem anchoring device. The supporting platform is further provided with feed storage rooms, bait feeding devices, monitoring devices and a communication device. The platform can realize automatic net cage fish culture production in a sea area under highoceanic condition, and has the characteristics of strong wind wave resistance, environmental protection, and high production efficiency and the like, and is a comprehensive platform for supporting sea water fish culture from near-shore to deep sea.

The invention relates to a pipeline steel for deep sea and a production method thereof. The pipeline steel for deep sea comprises the following components in percentage by weight: 0.025-0.080% of C, 0.05-0.50% of Si, 1.20-1.60% of Mn, less than or equal to 0.015% of P, less than or equal to 0.003% of S, 0.05-0.30% of Mo, 0.03-0.06% of Nb, 0.005-0.025% of Ti, 0.01-0.04% of Al, less than or equal to 0.010% of N and 0.0010-0.0050% of Ca used as main components, and less than or equal to 0.03% of As, less than or equal to 0.01% of Sb, less than or equal to 0.02% of Sn, less than or equal to 0.01%of Pb, less than or equal to 0.01% of Bi and less than or equal to 0.0005% of B used as residual elements. The production method comprises the following production steps: smelting according to clean steel, and carrying out continuous casting to obtain a blank; heating the cast blank; carrying out rough rolling; carrying out fine rolling; relaxing; cooling; relaxing again; straightening; and carrying out air cooling to room temperature. The pipeline steel has simple ingredient and technology, the thickness of the pipeline steel is more than or equal to 25mm, and the pipeline steel is used for deep sea pipelines. The Rt05 of the pipeline steel is more than or equal to 450MPa, Rm is more than or equal to 550MPa, Rt05/Rm is less than or equal to 0.85, A50mm is more than or equal to 40%, Agt is more than or equal to 10%, -40DEG C KV2 is more than or equal to 200J, and -20DEG C DWTT (Drop-Weight Tear Test) SA is more than or equal to 85%.

The invention relates to a method for testing seawater corrosion of low-alloy steel under a stress state. The method comprises two steps: 1, loading a constant strain by adopting four-point bending, bending a sample by a spiral micrometer setting bolt, and measuring a flexibility; and 2, installing a plurality of constant-strain loading devices on a real sea sample charging frame with a slot, and installing a multichannel potential acquiring device, and performing potential monitoring in a natural seawater or deep sea environment. The method for testing the seawater corrosion of the low-alloy steel under the stress state, provided by the invention, is capable of realizing evaluation of stress corrosion performance of a stress member under a natural environment, and can be applied to research of a material stress corrosion mechanism in a laboratory. The invention provides a novel testing method for the research of the stress corrosion performance of a stress structure in a service working condition; by adopting test data obtained by the method, the corrosion rule of the material and the member under the working condition can be actually reflected, and a favorable corrosion research means is provided for the research of a use material in the working condition.

The invention discloses a device for buoyancy adjustment of a deep sea glider. The device for buoyancy adjustment of the deep sea glider comprises an internal oil tank, a two-way hydraulic pump, a first switch valve, a second switch valve, a third switch valve, a direct current motor, a one-way valve, an external oil sac, a motor controller, an air pressure sensor, a temperature sensor, a controller, an integrated valve block, a pair of synchronous belt pulleys, a synchronous belt, a support and an air sac. The axis of the internal oil tank coincides with the axis of the external oil sac, the internal oil tank and the external oil sac are arranged in the lower positions of the two ends of the support respectively, the air sac is arranged in the internal oil tank, the first switch valve, the second switch valve, the third switch valve and the one-way valve are installed on the integrated valve block, the integrated valve block, the direct current motor and the two-way hydraulic pump are fixedly installed at the end, close to the external oil sac, of the support, the two synchronous belt pulleys are installed on an output shaft of the direct current motor and a driving shaft of the two-way hydraulic pump respectively, and the two synchronous belt pulleys are connected through the synchronous belt. The device for buoyancy adjustment of the deep sea glider can solve the technical problems that an existing buoyancy adjusting device is poor in quality, large in size, large in energy consumption and low in adjusting capacity.

The invention relates to the technical field of marine engineering equipment and large-sized ship construction, in particular to a sectional construction precision control method for a cylindrical ultra-deep sea drilling platform. The method can be applied to sectional construction precision control of various sea drilling platforms and large-sized ships. The method comprises the following steps of: platform model construction, section of main hull manufacture, sectional construction process division and precision control of each process stage. The method can produce important influence on quality and construction efficiency of a hull in a maritime work product manufacturing process. The sectional construction precision control method reduces the operation time and shortens the construction period of the large-sized sea drilling platform by precision control of each subsection from baiting to completion, meanwhile reasonably reduces the quality loss and the construction cost, and realizes modularized regional shipbuilding.

The invention provides a deep-sea observing buoy system based on inductive coupling and satellite communication techniques and belongs to the technical field of an ocean buoy platform. The deep-sea observing buoy system comprises a data collecting control satellite communication subsystem, a shore-station satellite communication subsystem, a power supply subsystem, a buoy subsystem and a mooring subsystem. A principle of a transformer is adopted by the deep-sea observing buoy system; an underwater plastic coated steel cable is taken as an iron core of the transformer, an inductive coupling connector is taken as a primary coil, the coils in various data sensors under the water are taken as secondary coils, an inductive coupling module is taken as a modulator-demodulator, and a half-duplex communication mode is established by a data-acquiring control satellite communicator in a broadcast mode through various sensors under the water, so that the real-time collection for underwater data is realized. Meanwhile, a mature satellite communication system is selected, a dial-up service supplied by the satellite communication system is utilized to establish a real-time, large-data-volume and stable communication link between a deep-sea buoy and a user data center, and the real-time transmission for deep-sea observed data is realized.

The invention discloses an organic acid potassium nutritional agent which comprises potassium-containing compound counted by potassium oxide, trace elements, organic acid, carbohydrates, deep-sea algal counted by dry weight, enzyme, alkyl polyuronide surfactant, and fat-soluble pollen extracts, and the allowance water. Potassium ions can be chelated with the organic acid to prevent the potassium from being fixed by soil, thereby improving the potassium utilization rate and the potassium efficiency of plants; auxogen contained in the trace elements, the enzyme and the deep-sea algal can provide perfect conditions for the growth of the plants. The organic acid potassium nutritional agent of the invention can be directionally applied to various crops, using 30-300g/acre in the leaf surface application and 1.5-4.5kg/acre in the soil application. The organic acid potassium nutritional agent prepared via the technical scheme of the invention has the advantages of high potassium content, easy absorption, small corresponding production equipment investment, simple process and low cost and can be widely applied to the industrial production.

The invention relates to a macrophytic algae aquaculture facility suitable for open type deep waters, in particular to an adjustable deep sea algae aquaculture floating bed, which substantially comprises a main anchor cable, a sea algae aquaculture floating bed and a weight system, wherein a mooring rope of the main anchor cable consists of a main float ball, a center circle, a chain ring, a lower circle, a rotating ring and a dropstone, and the sea algae aquaculture floating bed comprises a buoyancy framework, a bottom net, a purse net, a center circle, an oblique stay cord, a weight system and a guide plate. The adjustable deep sea algae aquaculture floating bed is a movable type floating bed frame, wherein the bottom portion of the adjustable deep sea algae aquaculture floating bed is provided with the bottom net, the middle portion of the bottom net is provided with a round iron ring, and the periphery of the movable type floating bed frame is inwardly obliquely provided with a circle of purse net. The weight system comprises a weight hanging rack, a weight block and a position card bolt. The adjustable deep sea algae aquaculture floating bed uses a double-buoyancy system, and can be guaranteed in an upright posture underwater through own bigger buoyancy of the movable type floating bed frame, can be accurately fixed on a scheduled water layer through a buoyancy system of the main anchor cable, and is more convenient to adjust the scheduled water layer by integrally arranging the adjustable deep sea algae aquaculture floating bed and the weight system in a micro buoyancy state.

The invention provides a method for extracting collagen powder from deep sea cod skin, and the method comprises the following steps: washing fresh cod skins with tap water for multitime; boiling at low temperature, removing oil; carrying out a biological enzymatic hydrolysis; removing fishy with log active carbon and decolouring; carrying out a plate filtration; condensing; disinfecting physically; sieving; granulating with spray at low temperature; collecting a collagen powder finished product. The method for extracting collagen powder from deep sea cod skin employs deep sea cod fishes, thereby guarantying security and nature of source, decreasing probability of pollution of collagen finished product. In addition, the whole process from biological enzymatic hydrolysis to spray drying employs low temperature control (the temperature is controlled under 50 DEG C), thereby guarantying non-yellow collagen powder color, non-fishy smell, unchanged spatial tissue structure of protein, non-degeneration of collagen and high activity of protein.

The invention discloses a deepwater aquaculture net cage using wave energy. The deepwater aquaculture net cage using the wave energy comprises a net cage (4), an anchor chain (2) and a foundation pillar (1). One end of the anchor chain (2) is connected with the net cage (3), the other end of the anchor chain (2) is connected with the foundation pillar (1), and the foundation pillar (1) is fixedly installed on the seabed. The deepwater aquaculture net cage using the wave energy further comprises an automatic feeding system, an automatic subsiding system, a remote monitoring system and an ocean power generation system using wave energy. The ocean power generation system is installed on the periphery of the frame of the net cage, the automatic subsiding system is installed on the upper layer frame of the net cage (4), the automatic feeding system is installed on the middle portion of the top portion of the net cage (4), one terminal of the remote monitoring system is installed on the net cage (4) under water, the other terminal is installed on a controller on shore, and two terminals are connected through a general packet radio service (GPRS) network. And therefore, the electric energy generated through the wave energy supplies energy needed by each system in a deepwater cage aquaculture process.

The invention discloses a test container for imitating deep-sea high-pressure environment, comprising a container body and a flat cover which is hermetically cooperated with the container body; wherein a water injection hole and a pressure measurement hole which are vertically penetrated are arranged at the centre of the top surface of the flat cover, a cylindrical lug matched with the inner chamber of the head of the container body is arranged at the centre of the bottom surface of the flat cover and the rest part of the bottom surface of the flat cover is completely matched with the top surface of the container; mutually matched annular steps are arranged on the peripheral surface of the cylindrical lug and the inner wall at the head of the container body, and an annular sealing ring made of soft metal materials is arranged between the two annular steps; the flat cover is in connection and close fit with the container body through screws and bolts, and press annular gaskets to deform plastically. The container of the invention presses the annular gaskets made of soft metal materials to deform plastically, increases the sealing property among the annular gaskets, and ensures that the container can bear the high hydrostatic pressure in the deep sea, thereby avoiding the troubles of testing the ocean engineering equipment in the deep sea.

A system that utilizes the naturally superheated fluids available from hydrothermal vents to harness the almost limitless quantities of heat energy they contain. It consists of one major system that has three parts: (i) funnel, (ii) pipes, and (iii) any combination of several mechanical attachments. The recovered heat energy will then be used to drive steam turbines or other equipment for electricity generation, water desalination, or any other thermal energy use. It could also be simultaneously or separately fed into resource recovery equipment for the recovery of valuable metals, minerals, and chemicals without system modification.

A deep-sea riser array model vortex-induced simulation test device under uniform flow under pretension in the field of ocean engineering technology, including: several deep-sea riser modules, a first end support module, a second end support module, a first The fixed column module, the second fixed column module, the afterburner module, two fairing modules, two wave suppressing plate modules and the measurement analysis control module, the present invention utilizes the relative movement of the trailer and the towed pool to simulate the uniform incoming flow of different flow rates, and Pretension can be applied to both ends of the deep-sea riser array model, so as to simulate the vortex-induced vibration of the deep-sea riser array in the laboratory environment. Riser model.