147 results about "Deep sea" patented technology

The application provides a deep-sea rapid blocking valve and a use method. The rapid blocking valve comprises a valve body, a valve cover and a valve rod. The valve body is internally provided with a valve cavity. The valve cover is connected with one side of the valve body to form a closed space. A flow channel is arranged in the valve cavity. A one-way valve structure and a two-way valve structure are arranged along the flow channel. The inner side end of the valve rod extends into the valve cavity and is connected with the one-way valve and the two-way valve in linkage. The one-way valve and the two-way valve are both provided with sealing structures between the valve body and the inner wall of the valve body. The L-shaped integrated valve body type is arranged in a side-mounted structure. The two-way ball valve is integrated in the interior. The structure is compact, light in weight, small in size, reduces the external leakage points of the valve, is convenient to install, improves the pressure-bearing capacity and the sealing capacity.

This application relates to the fields of underwater acoustic engineering, marine engineering, and sonar technology, and particularly to a passive localization method and system for deep-sea horizontal array sound sources based on high-precision azimuth estimation. The method samples the sound source signal using a horizontal array and estimates the earliest arrival time. After Fourier transform and phase compensation, a fringe slope cost function is constructed and a reference value is obtained through blind search. This reference value is then combined with frequency-shifted data beamforming to obtain a high-precision azimuth angle, while conventional beamforming obtains the solid angle, decoupling to obtain the elevation angle. The theoretical time delay for different assumed depths is then calculated, and the measured time delay spectrum is obtained from the broadband beam output. After matching the two, the actual depth of the sound source is determined by the minimum value of the cost function. This application reduces the computational load, decouples the azimuth and elevation angles of the horizontal array, solves the problems of horizontal arrays lacking elevation angle estimation capabilities and depth ambiguity in traditional methods, and improves the efficiency and accuracy of passive localization of deep-sea sound sources.

The present application relates to the technical field of deep-sea resource development, and specifically relates to a deep-sea low-disturbance mining robot control system, comprising: an information perception module for acquiring and transmitting multi-source sensing data; a central control module for receiving and processing the multi-source sensing data to generate coordinated control instructions; a motion and attitude adjustment module for receiving the coordinated control instructions to drive a piston-type variable buoyancy tank and walking feet to execute actions, and to adjust the overall buoyancy, attitude and walking state of the robot; a collection and storage and transportation operation module for receiving the coordinated control instructions to drive a suction mechanical arm and a mineral storage and transportation box to execute actions, and to collect and transport minerals. The present application improves the walking stability and operation adaptability of the robot in complex terrain, effectively prevents subsidence and attitude instability, combines a sand filtering structure and dynamic buoyancy compensation, reduces disturbance to seabed sediments, reduces turbidity current diffusion, and has environmental friendliness, and can perform long-term, continuous and stable high-efficiency mining operations in deep sea.

This invention proposes a deep-sea seabed observation device based on bidirectional concentration gradient gas exchange for dissolved oxygen compensation, belonging to the field of deep-sea exploration and marine instrumentation technology. It solves the problems of existing deep-sea seabed in-situ observation devices, such as the inability to achieve low-disturbance dissolved oxygen compensation and carbon dioxide removal during long-term closed observations, and the difficulty in adapting to extreme high pressures in the deep sea to achieve pressure stabilization, leading to deterioration of the observation environment, data distortion, and insufficient equipment reliability. It includes an observation unit, a power and chemistry unit, and a fixed lifting system. The observation unit comprises an observation cabin, a membrane module installed on the bottom of the observation cabin's hatch, and a circulation hose connected to the membrane module. The membrane module includes a membrane module frame and a PTFE tube fixed to the membrane module frame in a spiral configuration. The PTFE tube is a microporous hose that enables bidirectional concentration gradient gas exchange. The power and chemistry unit is installed at the front panel of the observation cabin via a power and chemistry unit mounting component. It is mainly used for deep-sea seabed observation.

The utility model discloses a kind of seabed carbon sequestration simulation detection devices combined with optical fiber sensor, including simulation box, gas delivery cover and controller, simulation box is provided with silt deposition model, detection optical fiber and propeller water sprayer, deposition model is fixedly installed in the inner end face bottom of simulation box, detection optical fiber is evenly distributed in silt deposition model, propeller water sprayer is evenly installed in simulation box, gas delivery cover includes flow guide cover and carbon dioxide cylinder, the inside of flow guide cover is hollow structure, through connection gas pipe is provided between flow guide cover and carbon dioxide cylinder, gas delivery cover is installed in the top of simulation box, controller is fixedly installed in the outside of simulation box. The utility model solves the low monitoring precision of traditional seabed carbon sequestration simulation detection device, poor system integration and difficult to restore deep sea environment.

The application discloses a flexible strain sensor, a preparation method and a deep-sea equipment structure health monitoring system. The flexible strain sensor comprises a flexible packaging layer, a composite conductive network structure packaged in the flexible packaging layer, at least one first conductive layer and at least one second conductive layer, wherein the first conductive layer is a conductive layer with a compact connection structure after mechanical pressure treatment, the second conductive layer is a conductive layer with a loose stacking structure without mechanical pressure treatment, and a conductive part electrically connected with the composite conductive network structure and led out. The application realizes the unity of ultrahigh strain sensitivity and high signal stability through the synergistic mechanism of macroscopic cracks and network microcracks generated by the two types of conductive layers under strain, and simultaneously endows the sensor with excellent flexibility and conformal attachment capability, so that the sensor can accurately collect the small strain signals on the surface of the deep-sea equipment structure and is suitable for the monitoring of the health of the deep-sea equipment structure.

This invention discloses a device and method for co-collecting polymetallic nodules and rare earth elements in deep sea. The collection device includes a mining vehicle, a mineral collection device mounted on the mining vehicle, and an underwater robot. The mining vehicle is equipped with a solidification liquid tank for loading a solidification solution for the soft, rare earth substrate. The solidification liquid tank is connected to the underwater robot, which is equipped with a spraying device for spraying the solidification solution onto the coexisting area of ​​polymetallic nodules and rare earth elements. The mineral collection device collects and transports the polymetallic nodules and the solidified rare earth solids into a storage bin within the mining vehicle. This invention utilizes an underwater robot to spray the solidification solution onto the soft, rare earth substrate in the coexisting area, thereby solidifying the soft, rare earth substrate into rare earth solids. This facilitates collection by the mineral collection device, prevents the flow and dispersion of the soft, rare earth substrate, reduces disturbance during the collection process, avoids the formation of plumes, and achieves efficient co-collection of polymetallic nodules and rare earth elements.

This invention relates to the field of marine platform technology, specifically disclosing a deep-sea self-elevating offshore operating platform, comprising an auxiliary frame and several splicing components. Each splicing component includes three parallel support rods, whose projections in a plane perpendicular to their length direction form a triangular arrangement. Any two support rods are connected via a connecting frame. Positioning components are provided at the ends of the support rods. The auxiliary frame includes three parallel fixing rods, whose projections in a plane perpendicular to their length direction form a triangular arrangement. Any two fixing rods are connected via a connecting frame. This deep-sea self-elevating offshore operating platform is characterized by rapid deployment, adjustable height, stability, reliability, and reusability. It enables free vertical positioning along piles and allows for flexible inspection and maintenance of the piles.

The present application relates to a deep-sea mineral jet grid cutting and crushing mining device, comprising a walking mechanism, a mechanical arm mechanism mounted on the walking mechanism, a negative pressure ore lifting mechanism matched with the mechanical arm mechanism, and a jet grid cutting mechanism; the jet grid cutting mechanism is arranged in front of the negative pressure ore lifting mechanism, and the jet grid cutting mechanism reciprocatingly cuts and crushes the mineral in a grid manner and outputs the mineral through the negative pressure ore lifting mechanism; the deep-sea mineral jet grid cutting and crushing mining device cuts and crushes the cobalt-rich shell ore in a reciprocating grid manner through the jet grid cutting mechanism, realizes efficient cutting and crushing of the cobalt-rich shell, and then carries out negative pressure mining through the negative pressure ore lifting mechanism, thereby improving the crushing effect and mining efficiency of the cobalt-rich shell.

This invention belongs to the field of underwater robots, specifically an in-situ filtration and preservation device for an underwater sampling robot. The inlet and outlet trays are sealed together. A filter membrane and sand core are located on the open side of the outlet tray's inner cavity. A preservative sealant cap is sealed within the inlet tray's inner cavity, and a filter chamber cover is located between the preservative sealant cap and the filter membrane. The inner cavity of the inlet tray is divided into a relatively independent preservative chamber and a seawater chamber by the preservative sealant cap and the filter chamber cover. A preservative sealant plug is installed inside the filter chamber cover. One end of the filter's suction connector is connected to the inlet tray, and the other end is fixed to a filter suction port fixing component. A one-way valve is installed between the filter suction connector and the filter suction port fixing component. This invention achieves in-situ filtration in the deep sea and automatically injects biological sample fixative for sample preservation after in-situ filtration, solving the problem of the impact of changes in environmental parameters such as temperature and pressure on the diversity and gene expression of planktonic microbial communities after deep-sea samples reach the sea surface.

The application provides a quick docking water inlet device for a ship side and a culture work ship applying the device, and belongs to the field of aquaculture and marine engineering. The application provides a structure design and a connection mode for quick docking of a water inlet device and a ship side water inlet, so that the water inlet device is suitable for large culture work ships to take water in deep sea areas, quick and reliable docking operation is realized, and the connection strength and the automation degree are improved. A rotating arm assembly is docked with or separated from a ship side water inlet assembly, a water inlet pipe for conveying water from an external sea area is arranged in the rotating arm assembly, and a rotating shaft seat assembly arranged on a deck is connected to a vertical end of the rotating arm assembly. The rotating shaft seat assembly comprises a first frame mounted on the deck, a rotating shaft is horizontally arranged on the first frame through rotating shaft bearing seats at two ends and can rotate around the axial center, a second hydraulic cylinder seat is mounted on the first frame, and a first hole for pivot connection is arranged on the top of the second hydraulic cylinder seat.

The application discloses an active sealing device for a water-tight cavity, and belongs to the technical field of water-tight sealing structure design. The device comprises a self-adapting sealing assembly and a cavity pressure regulating system. The self-adapting sealing assembly comprises an elastic liquid bag array, a flexible sealing belt, a sealing ring and a sealing ring arranged on the top of the self-adapting sealing assembly. The self-adapting sealing assembly is installed between the cavity body and the cavity cover of the water-tight cavity. When the pressure of the liquid bag in the elastic liquid bag array is lower than the set threshold, the air pressure regulating pipeline in the cavity pressure regulating system indirectly increases the water injection pressure of the liquid bag through the pressure compensator, the elastic liquid bag array expands in volume by injecting fluid medium, drives the sealing ring to displace along the axial direction, and makes the sealing ring and the cavity cover form an interference fit and establish a sealing interface. The application effectively overcomes the failure propagation defect of the traditional single sealing structure, and is suitable for long-term stable sealing requirements in deep sea environment.

The utility model belongs to the field of engineering instrument, concretely is a kind of deep sea oil drill bit anti-shake stabilizing device, including pivot;The pivot end portion is fixedly connected with sleeve;The pivot outside is provided with drill bit;Multiple fixed seats are fixedly connected on the pivot;The fixed seat is fixedly connected with connecting assembly;The connecting assembly end portion is fixedly connected with connecting plate;A pair of fixed column is fixedly connected on the connecting plate;Roller is rotatably connected between a pair of fixed column, by fixedly connected with multiple fixed seats on pivot, connecting assembly is fixedly connected on fixed seat, rotatably connected with fixed column between a pair of fixed column, when pivot rotates, drive roller to roll on the inside wall of drill bit, can make in use process to the shaking amplitude of pivot is limited, reduce in use process due to drill bit and seabed contact and due to vibration cause pivot shaking too large situation.

This invention discloses a long-term prediction method for deep-sea creep based on in-situ pore pressure observation using Bayesian-LSTM, relating to the fields of sediment dynamics and marine engineering. The method includes: deploying pore pressure sensors to collect pore water pressure data in real time, performing standardization processing, and calculating the pore pressure change rate; constructing a creep rate calculation model based on the effective stress principle and power law; building a time-series feature dataset using sliding window technology, constructing and training a Bayesian-LSTM network model, and introducing a Monte Carlo Dropout layer to assess prediction uncertainty; outputting a high-precision creep rate using a multiple sampling averaging strategy; calculating the cumulative creep distance through numerical integration, and constructing confidence intervals to achieve medium- and long-term trend prediction and risk analysis. This invention integrates physical mechanisms and data-driven approaches, effectively handling data noise and prediction uncertainty in the complex environment of the deep sea, significantly improving the accuracy and reliability of long-term creep prediction, and providing a scientific basis for deep-sea engineering safety assessment.

The utility model discloses a pipeline fixed support structure and pipeline conveying system, pipeline fixed support structure includes base and sets up the support on base, and base includes anchor plate, and it is fixed in civil engineering structure through expansion bolt, and support includes outer frame and baffle subassembly, through the cooperation of arc baffle and pipe section outer diameter and the cooperation structure with pipe section fixed ring, realize the firm fixed to pipe section, and will point contact convert into area contact, reduce contact stress, and prevent macromolecular pipeline from being crushed and being damaged, along the uniform distribution of baffle vertical support plate and the combination design of inclined bracing frame and rectangular frame, promote overall structural strength and impact resistance, through radial clearance and lateral clearance design, allow pipeline free thermal expansion and contraction, and the support material adopts corrosion -resistant treatment, satisfies the life requirement under the corrosion environment, can be applicable to pipeline conveying system, solves the pipeline corrosion, impact damage and anti -seismic stability problem under the deep sea environment.

This invention discloses a water-based formate annular protective fluid for deep-sea oil and gas field development and its preparation method, specifically relating to the field of chemical corrosion prevention in oil and gas field development. The fluid comprises the following raw material components by mass percentage: 15wt%-40wt% organic-inorganic salt composite base fluid, 3wt%-8wt% green composite corrosion inhibitor, 2wt%-5wt% composite oxygen scavenger, 1wt%-3wt% zwitterionic bactericide, 2wt%-4wt% composite scale inhibitor, 0.5wt%-2wt% high-pressure stabilizer, 0.3wt%-1.5wt% environmental synergist, 1wt%-3wt% natural gas hydrate inhibitor, with the balance being deionized water. This invention, by employing a specific compounded high-pressure stabilizer and an optimized composite salt-based liquid, can withstand high-pressure environments exceeding 30 MPa and maintain excellent physical and chemical stability within an extreme temperature fluctuation range of -10°C to 180°C. After testing at 180°C for 168 hours, the liquid showed no stratification, no precipitation, and minimal density change, demonstrating its outstanding thermal stability and pressure resistance, making it fully adaptable to the harsh working conditions in the deep sea, from low temperatures on the seabed to high temperatures at the bottom of wells.

This invention discloses a design method for marine energy utilization blades and the designed impeller. Based on a spherical profile lift-drag combined design concept, the marine energy utilization blade consists of a helical blade and two booster blades, one at the top and one at the bottom. The helical blade is determined by the initial airfoil line along the scanning path of the helical blade. The two booster blades are respectively connected to the upper and lower ends of the helical blade, and are determined by a bucket-shaped profile along the spherical arc guide line. The impeller consists of three sets of blades, a central shaft, and two end plates, all connected spherically. The three sets of blades are evenly distributed on the spherical profile. The central shaft is connected to the upper and lower end plates, providing support for rotation. The upper and lower end plates provide support and fixation, and are connected to the power generation device. This invention's impeller can achieve efficient and stable operation in omnidirectional low-velocity flow environments such as deep seas, and has advantages such as omnidirectional response to unpredictable ocean currents, high self-starting capability and operational stability, and optimized structural parameters for efficient operation.

The application discloses a floating diving offshore platform, which comprises a base, a buoyancy unit, a floating diving unit, a mooring unit and a device box. The base is a net-shaped structure formed by the cross connection of multiple ropes. The buoyancy unit and the floating diving unit are fixedly connected above the base. The mooring unit is arranged around the base and connected with the floating diving unit. The floating diving unit and the mooring unit jointly act on the base to realize the floating and diving of the base. The device box for loading functional devices is detachably connected inside the base. The floating diving offshore platform can resist deep sea harsh sea conditions, has device arrangement and personnel activity space, reduces construction cost and solves the problem of difficult device replacement.

A deep-sea salvage drilling tool and a method for using the same, comprising a drilling machine, a claw mechanism and a circumferential positioning mechanism, wherein: the drilling machine comprises a feeding mechanism, a hydraulic motor, a handle and a drill bit, the hydraulic motor is arranged in the middle of the feeding mechanism; the claw mechanism comprises a frame structure, a valve block, a clamping jaw mechanism, a fixed rod and a support cylinder, the drilling machine is arranged on one side of the claw mechanism and is installed on the frame structure, can be quickly assembled and disassembled through a wedge and a positioning boss, the clamping jaw mechanism is arranged in the frame structure, is fixedly installed at one end and is positioned at the other end through the fixed rod and the support cylinder; the circumferential positioning mechanism comprises a driving wheel, an auxiliary wheel, a positioning motor and a belt transmission device, can make the drilling tool move circumferentially along a circular or elliptical structure, the surface of the driving wheel is provided with soft spikes, and the auxiliary wheel is installed on the clamping jaw mechanism. The present application has the advantages of simple structure, high modularization degree, can realize stable clamping and multiple drilling of the structure and is very beneficial to the development of subsequent hoisting and salvage work.

This invention discloses a combined wind and wave power generation device for offshore power generation in deep-sea typhoon-prone areas, aiming to solve the problems of insufficient dynamic stability and poor power supply continuity in existing technologies. The device includes a semi-submersible wind turbine platform and a wave power generation device. The wave power generation device is located on the jacket of the semi-submersible wind turbine platform's base and includes a lateral dominant vibration damping device, a PTO (Positioning Tolerance) device, and a first transmission rod. The lateral dominant vibration damping device is slidably connected to the jacket along its circumference and integrates an adjustable-angle water baffle. The PTO device is connected to several lateral dominant vibration damping devices via the first transmission rod, which limits the horizontal displacement range of the lateral dominant vibration damping devices. This invention maintains high resilience and efficient suppression of horizontal oscillations under extreme typhoon conditions while also ensuring power generation efficiency.

The application relates to the technical field of ocean engineering equipment, in particular to a deep-sea position sensor, which comprises a stand column, the stand column is internally structured as a hollow structure, and a traction machine is arranged on the stand column; the traction machine comprises a rotating table rotatably arranged at the upper end of the stand column, a boom is arranged on one side of the rotating table, traction wheels are rotatably arranged at the two ends of the boom, a winding wheel is rotatably arranged in the hollow structure of the stand column, a traction cable is rotatably arranged on the winding wheel, and a deep-sea submersible is arranged at one end of the traction cable; the deep-sea submersible comprises an outer shell arranged at one end of the traction cable, and an annular cavity is arranged in the outer shell; the deep-sea submersible automatically adjusts thrust distribution according to the water flow direction, a threaded rod continuously rotates to control water inflow, and the deep-sea submersible is ensured to dive to a target operation depth at a stable and controllable speed.

This invention provides a collaborative optimization method for the main hydraulic cylinder system of a super-large piling vessel adapted for deep-sea applications, belonging to the field of marine engineering equipment technology. This invention constructs a five-dimensional collaborative system encompassing navigation, shallow water, energy conservation, seakeeping, and safety, including: multi-scenario requirement analysis; navigation-operational height collaboration, enabling rapid folding of the piling frame via quick-change interfaces; shallow water-buoyancy adaptation collaboration, linking the buoyancy tank to adjust draft and optimize hydraulic cylinder thrust; power grid-hydraulic cylinder energy efficiency collaboration, maintaining the main engine's economical load through energy storage regulation; seakeeping-attitude stability collaboration, linking anti-roll tanks and dampers to suppress roll; safety-lifespan early warning collaboration, predicting component lifespan based on digital twins; and full-condition benefit assessment and parameter iteration. This invention achieves dynamic linkage between the main hydraulic cylinder and various subsystems, solving the pain points of poor adaptability and insufficient collaboration in traditional equipment across all scenarios, significantly improving operational efficiency, energy conservation, and safety.

The present application relates to the technical field of deep-sea culture, and discloses a net cage for deep-sea culture, which comprises a net cage floating plate, a plurality of wave-following energy storage mechanisms arranged in different directions are arranged on one side of the net cage floating plate close to the sea surface; the wave-following energy storage mechanism comprises a plurality of floating balls, a wave-making piece and a gas storage piece, the plurality of floating balls are connected with each other through ropes, and each floating ball corresponds to one gas storage piece; the gas storage piece comprises a vortex fan piece; the wave-making piece comprises two stamping chambers with different spatial volumes, i.e., stamping chamber one and stamping chamber two, which respectively rush to the center of the net cage when the air pressure increases to a preset value, so as to make the sea surface waves float towards the center and make the fish food spread into the net; the wave-following energy storage mechanism is designed to skillfully utilize the natural fluctuation energy of the sea, the floating ball fluctuates with the sea wave, drives the vortex fan piece to rotate, and then pumps air into the wave-making piece, so that the process does not need an external power source, and efficient utilization of energy is realized.

The application belongs to the field of extreme environment advanced manufacturing technology, and discloses an experimental device for realizing metal laser spot welding in a high-pressure environment, which can simulate deep-sea and deep-well high-pressure working conditions and provide an experimental platform for in-situ laser welding and repair process research of metal components in extreme environments. The device is composed of four modules, i.e. a high-pressure bin, a safety system, an environment control system and a laser system. The high-pressure bin system is provided with airtight pressure-bearing structure, pressure-resistant optical window and multi-layer sealing to ensure the stability of high pressure. The laser system integrates a laser, a spot welding head and a precise displacement assembly to realize accurate laser introduction and welding spot positioning. The environment control system is combined with a gas path pressurization, heating and vacuum pumping unit to accurately control the temperature and pressure in the cabin. The safety system is provided with an explosion-proof safety cabinet and a lens circulating cooling device to realize comprehensive safety protection. The application fills the gap of laser spot welding experimental equipment in a high-pressure environment and provides experimental basis and technical support for the development and optimization of laser repair process of metal structures in deep sea and deep earth.

This invention discloses a modular deep-sea mechanical compressed air energy storage device and its construction method. The modular deep-sea mechanical compressed air energy storage device includes an air tank assembly, a base assembly, and a pile plate assembly. The air tank assembly stores compressed air and has a movable air plug inside the tank. The air plug moves up and down along the inner wall of the tank to compress or expand the internal space. The base assembly rigidly fixes the air tank and is fixedly connected to the pile plate assembly below it. The pile plate assembly is used to drive the piles into the seabed. This invention is scientifically designed and can safely and reliably store externally input compressed air in a submerged state (the entire structure is below sea level), effectively coping with the high-pressure extreme environment required for deep-sea compressed air energy storage, and has significant practical implications.