3823 results about "Seawater" patented technology

The invention discloses a seabed karst stratum tunnel shield data monitoring and analyzing method and system. The method comprises the steps that shield construction mechanical parameters, karst stratum acoustic emission signals and seawater osmotic pressure data are synchronously collected; shield construction mechanical parameters, karst stratum acoustic emission signals and seawater osmotic pressure data are subjected to seepage-stress coupling constraint, a hydraulic connectivity strength index is generated through fracture network seepage tensor inversion, and the filler migration risk level is judged based on pore water pressure dynamic mutation characteristics. And fusing the cutterhead torque frequency spectrum characteristic and the propulsive force fluctuation characteristic to generate a shield disturbance entropy value. According to the method, the hydraulic connectivity index is generated through seepage stress coupling inversion, the grouting path and the rheological parameters are dynamically optimized based on the fracture probability field, shield tunneling, seepage sudden change and grouting prevention and control cooperation is achieved, and the problem of prevention and control disjunction is radically solved.

The invention provides a method for quickly establishing a three-dimensional near-seafloor speed model in a shallow sea area; the method comprises the following steps of extracting initial informationand extracting a common-center-point gather; calculating the slope of the initial travel time in the common-center-point gather; judging whether a shot point is located in the seawater layer or not,and if yes, correcting the shot point to the seafloor; calculating the speed and the depth of inflection points corresponding to respective offset distances; performing linear interpolation on the speed at each depth to obtain a one-dimensional speed model of the common center point; after all the common-center point domain gathers are processed, adopting the linear interpolation method, calculating the speed values of the rest grid points by utilizing the one-dimensional speed model of all common center points, and a speed model is output. By adoption of the method for quickly establishing the three-dimensional near-seafloor speed model in the shallow sea area, the influence of the seawater layer on ray propagation is overcome, and the influence of multiple excitation receiving modes on an inversion result is eliminated, and the problem that the conventional method needs to carry out multi-ray tracing forward modeling is avoided.

The invention discloses a storm surge water increase prediction method and device, electronic equipment and a storage medium, and relates to the technical field of seawater monitoring, and the method comprises the steps: obtaining multi-source observation data of a target sea area, the multi-source observation data comprising satellite remote sensing data, near-shore monitoring data, meteorological mode data and drainage basin data; performing space-time alignment and exception processing on the multi-source observation data to generate standardized space-time grid data; performing hybrid prediction modeling on the standardized space-time grid data through a physical data dual-drive modeling layer to obtain a target probability water increasing field; and dynamically correcting the target probability water increasing field by using real-time observation data to obtain a storm surge water increasing predicted value. A physical mechanism model and a probability generation model are combined, limitation of a single model is overcome, and the nonlinear evolution process of the storm surge is effectively captured; the time-space dual-drive architecture is adapted to complex coast terrains and changeable meteorological conditions, and the risk of missing report or false report is reduced.

The invention discloses a marine geological sediment sampling device and method, and belongs to the technical field of sampling equipment. The marine geological sediment sampling device comprises a bottom frame, wherein one side of the bottom frame is a containing box, and the other side of the bottom frame is an inserting rod; the power box is arranged in the containing box through a sliding sealing structure, and a power element is installed in the power box. A sampling pipe in transmission connection with the power element, a floating assembly installed on the power box and an air pipe in the power box are installed among the multiple insertion rods, when the pressure in the cavity reaches a set value of a pressure valve, the valve is opened, compressed air is sprayed to stress blades through the air pipe to drive a first sliding ring to rotate, a floating plate rotates synchronously, and auxiliary propulsive force is generated; the propelling direction is consistent with the sinking direction of the device, the function of accelerating sinking is achieved, seawater resistance is effectively resisted, meanwhile, in a shallow sea area or a deep sea area, the overall buoyancy of the device is changed by dynamically adjusting the inflation volume in the floating plate, and the device can be prevented from violently shaking or inclining due to too fast sinking.

The invention relates to the technical field of ocean data interpolation filling, in particular to a space-time deficiency filling method and system based on context association and physical guidance. The method comprises the following steps: acquiring seawater dissolved oxygen data and context data; multivariable space-time dependence extraction is carried out based on the obtained seawater dissolved oxygen data and context data; gaussian noise diffusion is carried out based on the obtained seawater dissolved oxygen data; noise prediction is carried out based on double-view space-time correlation; and the prediction error is constrained based on the joint loss function. According to the method, a physical consistency constraint mechanism based on a partial differential equation is introduced in a model training process, so that model output better conforms to a physical coupling rule among variables in a marine environment. The constraint effectively inhibits non-physical fluctuation possibly occurring in the interpolation result, enhances the physical credibility and interpretability of the result, and provides a more reliable data basis for subsequent scientific analysis and process modeling.

The invention belongs to the technical field of crossing of environmental engineering and ocean dynamics, and particularly relates to a tidal dynamics prediction method and control device for a seawater desulfurization system, and the method comprises the steps: constructing a time-space coupling prediction model fusing multi-source hydrological observation data, and introducing a nonlinear dynamic weight distribution mechanism; the influence of terrain constraint, wind stress disturbance and upstream runoff on tidal propagation is quantified in real time, and a rolling prediction sequence of tide level phase, flow velocity gradient and salinity disturbance in the next three hours is output; the prediction result drives the scheduling of a desulfurization pump set, the adjustment of spraying density and the matching of aeration intensity, and the model weight is corrected on line based on the actually measured feedback of desulfurization efficiency to form closed-loop control. By means of the technical scheme, accurate cooperation of the operation parameters of the desulfurization system and tidal dynamics is achieved, meaningless energy consumption is reduced while the desulfurization efficiency is guaranteed, and the utilization rate of the desulfurization agent and the stability of the system are improved.

The invention belongs to the crossing field of artificial intelligence and process control, particularly relates to an intelligent coupling control strategy for chlorine production through seawater electrolysis based on digital twinning, and aims to solve the problems of response lag, weak disturbance suppression and lack of electrode aging early warning in a traditional control method. According to the strategy, a high-fidelity digital twin fusing electrochemistry, fluid and thermodynamics is constructed, characteristics of current, temperature, impedance spectroscopy and the like are collected and fused at high frequency through a multi-source sensor, a state space model driven by a deep recurrent neural network is established, and current efficiency and electrode aging coupling evolution recognition is achieved; when salinization or flow mutation is detected, the twinborn body predicts and dynamically calibrates the current density and the voltage set value in advance, and the safety process window is synchronously scaled. According to the strategy, the chlorine gas yield fluctuation is reduced by 60%, the energy consumption standard deviation is reduced by 45%, the fault early warning is advanced by 2-5 hours, the fault-free operation time of the system is prolonged by 50%, and high-precision, self-adaptive and preventive intelligent control of the electrolysis process is realized.

The invention relates to the field of civil engineering structure health monitoring, in particular to a subsea tunnel damage intelligent monitoring and identification method based on acousto-optic collaborative perception. The method sequentially comprises the steps of deploying a three-dimensional acousto-optic sensing network, actively detecting sound waves, reconstructing a local sound velocity distribution cloud picture, identifying a sound velocity abnormal region, performing optical fiber response focusing sampling and establishing an intelligent damage diagnosis model. According to the method, the three-dimensional acoustic array and the distributed optical fiber grid are simultaneously deployed in the subsea tunnel structure, functional complementation is realized between the three-dimensional acoustic array and the distributed optical fiber grid, seamless cooperative sensing of crack coarse positioning and strain fine positioning is further realized, acoustic active detection, trigger type optical fiber high-frequency sampling and a temperature-strain decoupling algorithm are adopted, and the positioning precision of the subsea tunnel structure is improved. Seawater noise and thermal expansion interference are effectively eliminated, 'dry cracks' and'water seepage cracks' are accurately distinguished, real-time monitoring is carried out on a subsea tunnel structure, whole-process identification of micro-damage-expansion-failure is achieved, and an active early warning mechanism is established.

The invention relates to the technical field of data processing, and discloses an anti-corrosion protection method and system for a propeller in a deep sea environment. The method comprises the steps that seawater corrosion data are collected through a sensor array, risk grading is conducted through a genetic algorithm, current distribution is optimized through a Lagrange algorithm, a self-adaptive protection potential field is constructed to respond to chloride ion concentration changes, the corrosion trend is analyzed based on a prediction model, and anti-corrosion control is executed. The intelligent level and the protection effect of anti-corrosion protection of the propeller in the deep sea environment are improved.

A computer-implemented method for predicting a Seawater intrusion index in coastal aquifers in arid regions with multiple parameters in groundwater for a sustainable groundwater management includes selecting multiple parameters based on the level of informative contribution and the multicollinearity to obtain an input dataset, partitioning the input dataset into a modeling dataset and a testing dataset, dividing the modeling dataset into a training set and a validation set and tuning hyperparameters based on a grid search strategy for each model, training each model based on the training set and hyperparameters, evaluating each model based on the validation set and multiple statistical performance metrics, selecting a prediction model based on the testing dataset and the multiple statistical performance, predicting the Seawater intrusion index from the prediction model, and creating an adaptive groundwater management strategy based on the SWI index.

The invention provides a high-temporal-spatial-resolution full-profile real-sea accurate corrosion test method and system, and the method comprises the steps: dividing the sea level into three layers of monitoring regions, namely an atmospheric near-sea-level layer, a sea-gas boundary layer and a seawater mixing layer, deploying corresponding sensor arrays in each monitoring region, and synchronously collecting the environmental parameters of each layer in real time; a standard corrosion coupon and a corrosion monitoring sensor for monitoring the local corrosion state of the sample are arranged in each monitoring area; performing space-time alignment on the acquired data to form an environment-corrosion strong association data set; an atmosphere-ocean coupling forecasting system is constructed, simulation and prediction of future environmental parameters are achieved, simulation results serve as input variables of a corrosion prediction model, and a material corrosion life prediction model is established in combination with historical test data. According to the invention, synchronous monitoring of multi-dimensional environmental parameters and material corrosion data within a range of 30 meters above and below the sea level can be realized, and an accurate basis is provided for material selection and corrosion prediction of marine equipment.

The invention discloses a seawater trace heavy metal on-line monitoring probe error automatic correction method, and belongs to the technical field of marine environment monitoring automatic control, and the method comprises the following steps: obtaining seawater fluid parameters and probe surface microorganism adhesion thickness data; generating a sensitive film deformation prediction parameter according to the data; dynamically synthesizing a seawater osmotic pressure standard solution based on the parameters; an in-situ adsorption efficiency coefficient is obtained through adsorption efficiency verification; comparing the reference efficiency coefficient to calculate an electrochemical compensation parameter of the probe; dynamically adjusting deformation parameters based on the microorganism adhesion thickness to generate a voltage compensation instruction; and finally, outputting probe correction control parameters through correction and superposition of the electrochemical parameters and the voltage instruction. By constructing a feedforward-feedback composite control system, predictive compensation for physical disturbance and real-time feedback calibration based on dynamic osmotic pressure standard liquid are combined, decoupling suppression for multi-source disturbance is achieved, and therefore the autonomous closed-loop control capacity of a probe is established.

The invention discloses a floating wind power platform self-energized carbon capture and deep sea sealing integrated system, which comprises a floating platform foundation, which comprises a plurality of buoy parts, and the buoy parts are integrated through connecting parts; the double-path carbon capture subsystem comprises an air carbon capture module and a seawater carbon capture module; the air carbon capture module introduces air into the adsorption module through negative pressure, and selectively adsorbs CO2 in the air; the seawater carbon capturing module is used for separating out CO2 from seawater in an electrochemical separation mode; the carbon sequestration subsystem is used for compressing, liquefying and sequestration the CO2 conveyed by the double-path carbon capture subsystem; and the wind power function subsystem comprises a wind power generation tower and power distribution equipment for supplying power to each subsystem. The platform is reasonable in configuration and high in function integration degree, has the advantages of wind energy driving, autonomous operation, continuous carbon capture, on-site storage and the like, is particularly suitable for deep and far sea areas without seabed pipe networks and far away from shore-based power grids, and can be used for application scenes such as wind power plant carbon compensation and ocean carbon removal.

The invention discloses a foundation scouring depth monitoring method and a foundation scouring depth monitoring system for an offshore wind turbine generator, and relates to the technical field of monitoring. Analyzing the relationship between the scouring depth safety value threshold value and the scouring rate of the offshore wind turbine generator set in different environments and states and each parameter of seawater, monitoring each information of the current offshore wind turbine generator set, judging the stability of the current offshore wind turbine generator set, if the stability is poor, performing early warning, and if the stability is good, performing early warning. If yes, whether maintenance early warning needs to be carried out or not is analyzed, if yes, parameters of current seawater are obtained, early warning levels of maintenance and the like of the offshore wind turbine generator are judged according to the parameters of the current seawater and the relation between the scouring rate and the parameters of the seawater, early warning is carried out, and the effectiveness of stability judgment of the offshore wind turbine generator is guaranteed; and the timeliness of maintenance of the offshore wind turbine generator is also ensured.

The invention discloses a method for completing an autonomous deep-sea exploration task by a deep-sea cross-domain unmanned aerial vehicle. The method comprises the following steps: determining a target area; taking off to a specified height from the sea level, receiving a task execution command and then flying to a target area; when the relative distance between the current position and the coordinates of the target area reaches a preset value, descending; when it is detected that the device is contacted with seawater, the device dives through gravity; when it is detected that the set depth is reached, the propeller is restarted, and the detection task is executed; after the detection task is completed, the standby battery is rejected and ascends; after leaving the water surface, rising to a specified height and switching to a homeward flight mode; and when the deep-sea cross-domain unmanned aerial vehicle is within the sight distance range, a manual landing task is executed. The invention further discloses the deep-sea cross-domain unmanned aerial vehicle. According to the unmanned aerial vehicle and the method, autonomous switching operation between an air medium and an underwater medium can be realized, and the unmanned aerial vehicle has the capability of autonomously completing detection and water body sampling in an extreme deep sea environment.

The invention discloses a scylla paramamosain keep-alive and soft shell soft-keeping method, a low-temperature keep-alive mode refers to an on-ice keep-alive mode or a low-temperature acidification keep-alive mode, preferably, the low-temperature acidification keep-alive mode: cooling seawater to 16 DEG C or below by using a cooling-water machine, then adjusting the pH value of the seawater to be less than 8 to obtain low-temperature acidified seawater, and then cooling the low-temperature acidified seawater to obtain the scylla paramamosain soft shell soft-keeping method. And putting the soft-shell crabs which just molt into low-temperature acidified seawater for keeping alive and softness. The hardening of the soft shell can be obviously delayed by low-temperature acidified seawater and on-ice keep-alive; low-temperature acidified seawater and on-ice keep-alive soft-shell crabs can improve the delicate flavor and sweet taste of hepatopancreas of the soft-shell crabs, and the flavors of the two keep-alive soft-shell crabs are better than those of cold-stored dead soft-shell crabs; on-ice and low-temperature acidified seawater keep-alive interferes with glycolipid metabolism, oxidative stress and cell apoptosis of the soft-shell crabs, and compared with on-ice keep-alive, low-temperature acidified seawater keep-alive influences are milder than on-ice keep-alive.

The invention provides an edge calculation optimization method for a seawater parameter monitoring Internet of Things system, and belongs to the technical field of edge calculation, and the method comprises the steps: constructing a seawater parameter monitoring sensor network, and calculating an energy consumption evaluation reference value based on a data change rate and a disorder degree; performing feature extraction on the seawater parameter data; deploying a double-model collaborative architecture comprising a terminal lightweight model and a center complete model; setting a dynamic energy consumption threshold judgment mechanism to allocate calculation tasks; executing lightweight edge calculation at the sensing nodes; transmitting the processed data through a low-power wide area network; the calculation center verifies and fuses the data; constructing a seawater parameter space-time distribution model; dynamically adjusting an energy consumption evaluation reference value by using a Pareto optimal solution set method; and periodically evaluating system energy consumption efficiency and updating model parameters. According to the method, dynamic balance of energy consumption and calculation efficiency of the seawater parameter monitoring system is realized, and the continuous operation capability and the monitoring reliability of the system are remarkably improved.

The invention belongs to the technical field of sea water desalination equipment, and particularly relates to a solar heat collection type sea water desalination device, which is characterized in that an annular heating belt is arranged and matched with a circulating pipe, so that the heating belt can be heated by a circulating motion mode in a solar heat collection evaporation operation process; the heating belt is in alternate contact between the evaporation dish and external seawater, on one hand, the heating belt can transport impurities, silt and the like in the evaporation dish to the outside of the evaporation dish to a certain extent in the circulating motion process, cleaning of the evaporation dish is achieved, and light obstruction caused by the impurities is reduced; the heating belt can be in contact with seawater with different concentrations, so that salt components are transferred to external seawater from the evaporation pan, and the effect that the crystallized salt layer is separated from the heating belt is further accelerated by utilizing the temperature difference between the evaporation pan and the external seawater to cause the heating belt to expand with heat and contract with cold to a certain extent and deformation generated when the circulating roller drives the heating belt to move.

The invention discloses a seawater corrosion environment biaxial test system and method based on Raman spectrum. The seawater corrosion environment biaxial test system comprises a biaxial in-situ loading device, a seawater corrosion environment simulation box and a Raman spectrum measuring instrument. According to the biaxial in-situ loading system coupled with the seawater corrosion environment and used for Raman spectrum measurement, simulation of a complex stress state and the seawater corrosion environment is achieved by coupling the biaxial in-situ loading equipment and the seawater corrosion environment simulation box, and meanwhile, based on the Raman spectrum measurement instrument, the measurement accuracy is further improved through data analysis. Key information such as chemical product evolution laws in the stress corrosion process is obtained in situ, and a technical foundation is laid for clarification of a corrosion failure mechanism of a material under a real deep-sea service condition.

The invention relates to an ocean internal temperature inversion method fusing PIES and sea surface multi-source parameters, and belongs to the technical field of ocean environment parameter inversion and ocean dynamics observation. Comprising the following steps: constructing a nonlinear empirical model (Multi-RF) of seawater temperature inversion by using a random forest algorithm and fusing data such as a historical observation temperature-salinity profile observed by a temperature-salinity-depth meter (CTD) and sea surface multi-source parameters; and inverting the seawater temperature through a Multi-RF model by using the sound propagation time and multi-source sea surface data calculated by the PIES. Compared with a traditional empirical mode mapping (GEM) model, the Mull-RF model provided by the invention has the advantages that on one hand, the Mull-RF model utilizes fewer samples to establish a mapping relation between the seawater temperature and multiple parameters, and the problem of sample shortage in construction of a seawater temperature inversion model fusing sea surface multiple parameters and PIES observation sound propagation time is solved; on the other hand, compared with polynomial fitting in a GEM model, the random forest adopted by the Multi-RF model can achieve nonlinear fitting from multiple parameters to the seawater temperature, and therefore the temperature inversion precision is remarkably improved.

The invention discloses a seawater parameter correlation analysis method and device, electronic equipment and a storage medium, and relates to the technical field of ocean monitoring. The method comprises the following steps: acquiring satellite remote sensing data of a target sea area and performing space-time quality screening; preprocessing the satellite remote sensing data to generate correction data for temperature inversion; analyzing tidal dynamic characteristics of the target sea area; inverting a sea surface temperature field based on the pre-processed data, and performing enhancement analysis by fusing tidal dynamic characteristics; establishing a coupling strength quantitative index of the tidal power and the temperature field; collecting and complementing historical observation data of the power plant; the relevance between the temperature and the liquid level parameters is counted and analyzed; and the correlation of the seawater parameters is judged by integrating the coupling strength quantitative index and the data statistical result. The invention provides a two-channel decision-making mechanism with cooperation of a physical mechanism and operation data statistics, and the mechanism not only improves the operation efficiency of the cooling system of the power plant, but also reduces the misjudgment rate of abnormal working conditions, and provides an enforceable optimization strategy for warm drainage management.

The invention discloses a typhoon influence distinguishing method and system based on seawater CO2 partial pressure data, and the method comprises the steps: obtaining sea area situation monitoring data in a target sea area typhoon transit period through a multi-source observation platform, and constructing a standardized data set and a climate state background field; a DBSCAN clustering algorithm is adopted to perform water mass division, and the typhoon characteristic water mass distribution is determined in combination with a Manchester-HuitiniU test and correlation analysis. And calculating a seawater carbon dioxide partial pressure abnormal field based on the climate state background field, constructing a typhoon influence index sequential sequence, identifying a core influence area, and generating a typhoon influence trace path. And then seawater carbon dioxide partial pressure grid point reconstruction is carried out, and a typhoon influence space map is constructed. And finally, analyzing space-time change of carbon dioxide flux of air-sea, evaluating carbon sink stability, and generating a typhoon-carbon sink sensitivity zoning map. Seawater carbon dioxide partial pressure is used as a core index, limitation of a traditional method is overcome, and reliable technical support is provided for typhoon marine environment influence assessment.

The invention discloses a dredging method of a robot for a nuclear power seawater pump room, the robot, a storage medium and a program product, and the method comprises the steps: receiving a task instruction corresponding to a dredging task of the nuclear power seawater pump room, and collecting environment image data through an image collection device arranged on the robot, environmental sonar data are collected through a sonar sensor; according to the task instruction, the environment image data, the environment sonar data and a task planning model, determining a plurality of sub-tasks and environment feature data corresponding to the dredging task; and determining associated feature data according to the plurality of sub-tasks, the environment feature data and a feature fusion model, and determining a target dredging path corresponding to the dredging task according to the associated feature data, a preset constraint condition of the robot and a path planning model. According to the technical scheme, the safety, efficiency and intelligent level of the dredging operation of the robot in the nuclear power seawater pump room can be effectively improved.

The invention relates to the field of peak friction angle calculation, in particular to a peak friction angle calculation method and system based on a static sounding experiment. The method comprises the steps that a static sounding experiment is conducted on a seabed, and the conical tip resistance, the side friction resistance, the seabed penetration depth, the seawater unit weight and the seawater depth of a seabed soil body are obtained; the conical tip resistance is corrected through the seawater depth, the seabed penetration depth and the seawater unit weight, and corrected conical tip resistance is obtained; calculating the friction resistance ratio of the opposite sides of the seabed soil body by using the corrected conical tip resistance and the side friction resistance; determining the soil layer type of the seabed soil body by utilizing the friction resistance ratio of the opposite sides and the corrected conical tip resistance; and calculating a peak friction angle estimated value based on the soil layer type. According to the method, the problem that the calculation of the peak friction angle is not accurate and scientific enough due to complex and changeable environments for estimating the peak friction angle in the prior art is solved, and the accuracy and scientificity of estimating the peak friction angle are greatly improved.

The present invention discloses an anti-scour system for an offshore wind power pile foundation, comprising a chassis, wherein anti-slip edge teeth are fixedly connected at equal intervals around the bottom of the chassis, a diversion mechanism is provided on the top of the chassis, a mounting mechanism is provided on the top of the diversion mechanism, and anti-loss mechanisms are provided on both sides of the chassis. The beneficial effects of the present invention are as follows: the undercurrent of seawater can be diverted by the diversion mechanism to flow upward or downward, thereby washing away or carrying away the mud and sand on the top of the chassis, thereby playing the role of cleaning the mud and sand, and preventing the accumulation of mud and sand from corroding the chassis; the mounting mechanism facilitates better fixing the equipment on the seabed surface to prevent the equipment from shaking or detaching; the anti-loss mechanism facilitates better reinforcement of the mud and sand on the seabed near the equipment to prevent the mud and sand from loosening and causing the equipment to shake and detach; at the same time, the formed seaweed or other marine plants can also play the role of shielding mud and sand, and prevent the mud and sand from impacting the pile foundation and causing corrosion and wear.

The invention belongs to the technical field of ecological fishery engineering, and particularly discloses an artificial fish reef for fish sonar monitoring, which comprises a reef body, sonar equipment, buoys and a signal transceiver. The reef body is of a hollow polyhedral structure, the bottom of the reef body is opened to be inserted into seabed sediment to enhance stability, and the top and the side walls are provided with signal receiving and transmitting holes and hollowed-out parts used for receiving and transmitting sonar signals and promoting seawater circulation. The sonar equipment is fixed in a mounting groove in a central partition plate of the reef body and comprises a sonar placement cabin, a sonar transceiver, a transducer and a relay, wherein the sonar transceiver, the transducer and the relay are integrated in the sonar placement cabin. The buoy is connected with the sonar equipment and the signal transceiver through transmission lines to form an underwater detection-water surface transmission system; the signal transceiver integrates a 4G module and a solar power supply system, and supports data real-time return and self-powered operation and maintenance. The limitation that a traditional fish reef is single in function is broken through, the ecological restoration and intelligent monitoring capabilities are achieved, and a new solution is provided for marine ranch resource assessment and dynamic management.

The invention relates to the technical field of ocean new energy technology utilization, and discloses an oscillating water column type wave energy power generation system with an energy gathering structure at the bottom, which comprises a jacket, an air chamber, a turbine power generation system, a radar altimeter, an infrared camera, an airflow velocity sensor, a control host and a bottom energy gathering assembly, the bottom energy-gathering assembly is installed at the lower end of the air chamber and provided with a transmission mechanism, reflection and diversion of seawater at the bottom of the air chamber are achieved through the arranged horizontal bottom plate and the two symmetrically-arranged energy-gathering plates, energy gathering beyond the width of the air chamber is completed, and opening and closing of the energy-gathering plates are synchronously controlled through the transmission mechanism. And the amount of seawater flowing into the air chamber from the water inlet is changed. According to the wave energy power generation system, the oscillation intensity of the water column in the air chamber can be adjusted according to changes of sea surface waves, the speed of the generated air flow can be matched with the optimal working frequency of the turbine power generation system, the power generation efficiency of the device is guaranteed, and the oscillation water column type wave energy power generation device can be protected and prevented from being impacted by sea waves.

The invention discloses a seawater desalination hydrogen production device which comprises a base with a closed bottom and an axially-through shell barrel, seawater through holes are formed in the side wall of the base, and the shell barrel is fixed to the top of the base; the pneumatic lifting mechanism comprises an air-closed pneumatic head, a pneumatic head bracket and a connecting bracket which are sequentially connected from top to bottom, and a connecting rod of which one end is connected with the output end of the pneumatic head and the other end is fixed at the top of the filter cartridge; the side wall of the filter cartridge is coated with a selective permeable membrane, a plurality of filter holes are formed in the filter cartridge, and a water inlet and a water outlet are formed in the bottom of the filter cartridge; the water inlet pipe connected with the water inlet and the water outlet pipe connected with the water outlet are used for forming an alkali liquor circulation path; the air-closed pneumatic head is controlled to drive the filter cartridge to lift so as to adjust the osmotic pressure difference, so that seawater desalination and alkali liquor concentration dynamic balance are realized. The device can automatically ascend and descend according to the liquid level height in the filter cartridge, and the proportion of alkali liquor to pure water in the filter cartridge is regulated and controlled.

The invention discloses a deep sea environment biaxial loading in-situ test system and method for industrial CT, the test system comprises a biaxial test bench, a deep sea environment box, a rotary table, a simulation seawater loop and an X-ray imaging unit, the deep sea environment box is arranged at the central position of the biaxial test bench, the biaxial test bench is arranged on the rotary table, the rotary table is arranged on the rotary table, and the X-ray imaging unit is arranged on the rotary table. And the X-ray imaging unit directly faces the biaxial test bench. In order to solve the problems that no effective means for simulating the complex stress and corrosion coupling environment of the deep sea environment exists at present, and key data such as chemical products in the corrosion process of marine materials under the complex stress cannot be obtained in situ, the invention provides a coupling biaxial in-situ loading device and a seawater corrosion environment simulation box. Simulation of a deep-sea complex stress state and a seawater corrosion environment is realized, a chemical product evolution rule in a stress corrosion process is obtained in situ based on a spectrum measuring instrument, and a technical foundation is laid for clarification of a corrosion failure mechanism of a material under a real deep-sea service condition.

The invention discloses scouring protection and seaweed restoration integrated ecological solidified soil and a preparation method thereof, and belongs to the technical field of ocean engineering and ecological restoration. The material is prepared from the following components in parts by weight: 800 to 1000 parts of sea mud, 200 to 400 parts of calcined coral sand, 50 to 150 parts of a modified chitosan gelling agent, 100 to 200 parts of a silicate geopolymer, 100 to 250 parts of slow-release nutritional ceramsite, 50 to 120 parts of seaweed seeds, 80 to 160 parts of a seawater activating agent and 20 to 50 parts of a microbial carrier loaded with saline-alkaline tolerant bacteria. The material has the characteristics of underwater dispersion resistance and self-leveling, can resist scouring at the flow speed of 2.5 m / s, and realizes that the 30-day accumulative germination rate of sea grass is greater than or equal to 80%. The method breaks through the bottleneck of function splitting of traditional material engineering protection and ecological restoration, synchronously completes scouring protection and seaweed community reconstruction, and is suitable for ocean engineering scouring protection and seaweed ecological restoration engineering.