43 results about "Offshore water" patented technology

The invention discloses an offshore water quality comprehensive treatment device utilizing an artificial wetland technology, and belongs to the technical field of sewage treatment. The offshore water quality comprehensive treatment device comprises a base, a water inlet and a water outlet are formed in the two sides of the base respectively, a lifting cavity corresponding to the water outlet is formed in the base, and a balancing weight is arranged in the lifting cavity in a sliding fit mode; lifting columns are symmetrically and integrally formed at the top end of the balancing weight, air cavities are symmetrically formed in the base, the top ends of the two lifting columns extend into the corresponding air cavities respectively and are in sliding fit with the air cavities, and ventilation assemblies used for conveying air in the air cavities to the water collection and drainage layer are arranged on the inner side walls of the air cavities; a plurality of teeth are arranged on one side of each lifting column in the length direction of the lifting column, and the teeth are meshed with swing assemblies used for generating periodic arc-shaped swing. And a vibration bracket is embedded in the filler layer. According to the invention, offshore tidal energy is utilized to realize self-adaptive opening and closing of the water outlet, and meanwhile, alternate shearing force is generated on the filtering filler in the base, so that the possibility of hardening of the filler after long-time working is reduced.

The invention relates to an inshore water quality day-by-day kilometer-level inversion method, system, device and medium, and belongs to the technical field of water quality monitoring, the method comprises the following steps: obtaining remote sensing image data, meteorological reanalysis data and ground water quality site measured data, preprocessing, carrying out space-time matching fusion, using the fusion data as a sample to carry out model training, and obtaining a model training model; obtaining a space model; a spatial model offshore water quality spatial distribution diagram; and constructing a CNN-BiLSTM mixed time sequence model, and training the CNN-BiLSTM mixed time sequence model by taking historical water quality data of a ground water quality station and the offshore water quality spatial distribution map as samples to obtain a prediction model. The method is suitable for red tide early warning, pollution tracing and marine ecological management, breaks through monthly monitoring limitation, and realizes day-by-day kilometer-level water quality dynamic tracking; remote sensing large-range coverage and site high-precision data are fused, and the problem of inshore environment heterogeneity is solved; the time-space double-model cascade architecture significantly improves the generalization ability under complex hydrological conditions.

The invention discloses a multi-modal perception and edge intelligence water area monitoring unmanned ship and a grading early warning system, a grading early warning mechanism is realized based on an artificial neural network (ANN) water quality model through a sensor array formed by a water quality sensor, a hyperspectral camera and a multi-beam wave depth finder, the early warning mechanism is triggered if abnormity is found after data analysis, and the water area monitoring unmanned ship can be used for monitoring the water area. The time from data acquisition to early warning triggering is less than 3 seconds. The water area monitoring and patrol operation and maintenance cost can be reduced, and the system is suitable for real-time environment monitoring and pollution early warning of rivers, lakes and offshore water areas.

The invention relates to the technical field of ocean remote sensing, in particular to an offshore water quality remote sensing inversion and classification method based on small sample deep learning, which comprises the following steps: acquiring offshore in-situ observation, satellite remote sensing and ocean reanalysis data; carrying out atmospheric correction, carrying out space-time reconstruction on the missing remote sensing reflectivity by adopting a data interpolation empirical orthogonal function, carrying out mathematical transformation on input features, and screening out an optimal feature subset by adopting a strategy based on an average absolute percentage error; constructing a deep learning network based on a generative small sample to invert the offshore soluble inorganic nitrogen and inorganic phosphorus concentration, and determining the water quality grade; and analyzing an inversion mechanism by using an SHAP method. According to the method, the problem of data space-time discontinuity is solved through the data interpolation empirical orthogonal function, the capture capability and inversion precision of the nonlinear relation under the small sample condition are remarkably improved by utilizing the generative network, the model interpretability is realized in combination with SHAP analysis, and scientific support is provided for offshore water quality fine management.

The invention discloses a quantitative prediction method for water logging of a well section of an infilled horizontal well of an offshore water-drive oil field. The method comprises the following steps: S1, dividing a well spacing area of the horizontal well into a plurality of grids; s2, establishing a displacement pressure, gravity and buoyancy coupled flooding thickness quantitative prediction mathematical model, and drawing a waterline propulsion chart; s3, based on the waterline propelling condition, the remaining oil distribution coefficient of the well spacing area is calculated; s4, screening remaining oil gathering grids according to the remaining oil distribution coefficient, and quantitatively judging the water logging condition of the well section of the horizontal well; and S5, reevaluating the enrichment degree of the remaining oil, and further evaluating and determining the potential tapping grid of the horizontal well. According to the quantitative prediction method for flooding of the well section of the infilled horizontal well in the offshore water-drive oil field, three-dimensional representation of the flooding position and the flooding degree of the well section of the infilled horizontal well in a high-water-content oil reservoir can be achieved, the remaining oil enrichment area suitable for implementing the horizontal well can be accurately screened and evaluated, then well position deployment of the horizontal well is guided, and the infilled adjustment effect is improved.

The invention discloses an offshore water quality multi-parameter monthly dynamic monitoring method based on a remote sensing image and a random forest algorithm, which is used in the field of offshore water quality remote sensing monitoring research, and comprises the following steps: obtaining hydrometric station data and remote sensing image data of a monitoring area, and sequentially carrying out preprocessing and space-time fusion matching operation, obtaining a month-by-month water quality data set; constructing a monthly water quality monitoring model based on a random forest algorithm; training a monthly water quality monitoring model by using the monthly water quality data set to obtain a monthly water quality monitoring inversion model; and performing inversion on the remote sensing satellite image of each month by using the monthly water quality monitoring inversion model to obtain a water quality inversion spatial distribution diagram of each month. According to the method, long-time sequence, revisit, large-range and efficient dynamic monitoring can be realized, the prediction precision is high, the generalization ability is strong, and a business unit can be served to carry out related businesses such as monthly surface water quality drawing, monitoring and evaluation.

The invention discloses a coastal power plant warm discharge water background temperature calculation method, an electronic device and a storage medium, the background temperature is accurately calculated, and the method comprises the following steps: 1, if remote sensing image data exists before a power plant operates, taking a power plant sea area as a target sea area; and if not, selecting adjacent areas which are similar in shoreline characteristics and are not influenced by warm drainage. 2, selecting a remote sensing image similar to the field observation time for inversion to obtain a sea surface temperature data matrix; and 3, establishing a water temperature gradient observation strip consistent with the resolution interval of the remote sensing image in the target sea area from the shore to the offshore direction, and calculating a temperature mean value. And 4, fitting a curve representing the natural gradient change of the offshore water temperature by using an exponential function model based on the observation strip temperature data. And 5, introducing the water temperature of the reference point. And 6, in combination with the fitting curve and the datum point water temperature, background temperatures of different tidal hours and offshore distances are calculated to form a space-time continuous dynamic background temperature field. And 7, performing difference operation on the actually measured sea surface temperature field and the dynamic background temperature field to obtain an actual temperature rise field of the thermal discharge of the power plant.

The utility model belongs to the field of heat exchangers, and discloses a water-cooling radiator assembly for producing hydrogen by electrolyzing water at sea. Comprising a radiator outer frame, limiting lugs are arranged on the front side face of the radiator outer frame, hanging ring holes are formed in the four edges of the top of the radiator, a plurality of heat exchange coils which are arranged in parallel and are bent from top to bottom are arranged in the radiator outer frame, and the ends, located on the top, of the heat exchange coils penetrate through the top of the radiator outer frame to form water outlets. The bottom end of the heat exchange coil directly penetrates through the top of the radiator outer frame to form a water inlet. The system can provide heat exchange and refrigeration for offshore water electrolysis hydrogen production equipment, saves system power consumption, and remarkably improves system efficiency.

The application discloses a kind of calculation method of coastal power plant warm discharge background temperature, electronic equipment and storage medium, accurately calculate background temperature, comprising:1.If there is power plant before running remote sensing image data, with power plant sea area as target sea area;If not, select adjacent, similar and not affected by warm discharge region of shoreline feature.2.Select and reverse the remote sensing image of the similar observation time, obtain the sea surface temperature data matrix.3.In the target sea area, the temperature mean value is calculated by establishing the water temperature gradient observation strip consistent with the resolution interval of remote sensing image along the coast to offshore direction.4.Based on the temperature data of observation strip, the curve representing the natural gradient change of offshore water temperature is fitted using the exponential function model.5.Introduce the reference point water temperature.6.Combined with the fitting curve and reference point water temperature, the background temperature of different tidal time and offshore distance is calculated to form a spatiotemporal continuous dynamic background temperature field.7.The actual temperature rise field of power plant warm discharge is obtained by difference operation between measured sea surface temperature field and dynamic background temperature field.

The present invention provides a water sample collection device, which includes a telescopic rod and a water sampler. The telescopic rod includes a plurality of sleeves connected in sequence. A positioning ring is provided on the outer wall of each sleeve. A turntable is further provided at the end of the telescopic rod. A suspension line is wound around the turntable. One end of the suspension line sequentially passes through all the positioning rings and is connected to the water sampler. The water sampler includes a cylindrical container. A water inlet pipe extending into the container is opened at the bottom of the container. A valve seat is provided at the top of the water inlet pipe. A wire mesh is connected to the top of the valve seat. A sphere is provided between the valve seat and the wire mesh. As the water level in the container changes, the sphere opens and closes the water inlet pipe. The present invention also provides a method for using the foregoing water sample collection device. The beneficial effect of the present invention is that the water sampler is connected to the suspension line in the telescopic rod. The suspension line can be wound and released by manually driving the turntable and the length of the telescopic rod can be adjusted to change the position of the water sampler, overcoming the inconvenience of collecting water samples offshore and achieving the effect of independently collecting water at any shore distance.

The utility model provides an underwater operation module which comprises a main body frame, an operation unit and an operation auxiliary unit, the main body frame is provided with a lifting appliance connecting device, and the lifting appliance connecting device is used for being connected with lifting equipment of a mother ship to enable the underwater operation module to be in a suspended state in the operation process; the operation unit and the operation auxiliary unit are both connected with the main body frame, and the operation unit and the operation auxiliary unit are in signal connection with a control system of the mother ship. The mother ship is further used for providing a power source and a power source for the operation unit and the operation auxiliary unit. According to the underwater operation module, underwater operation can be implemented in suspension movement by means of the sailing capacity and the hoisting function of the mother ship, smooth movement is not limited by shallow offshore water depth and soft seabed geology, meanwhile, suspension movement can be achieved through the mother ship, the structural composition of the underwater operation module is simplified, and the underwater operation module is convenient to use. And the research and development and manufacturing cost can be reduced.

This application provides a powder unloading terminal structure based on a screw unloader, including an unloading terminal and a screw unloader. The unloading terminal includes an offshore waterway and a canopy. The offshore waterway is built in the water, avoiding the occupation of shoreline resources, and is suitable for special scenarios where land reclamation is restricted and the construction of impermeable projects is prohibited. Both sides of the offshore waterway have the capacity for ship berthing, and there are at least two offshore waterways, providing support for the canopy structure. The canopy spans the two offshore waterways, and the water area below the canopy is the unloading area. The canopy effectively resists the impact of severe weather, making unloading operations no longer restricted by weather conditions, and also prevents dust from spreading to the outside. The water area outside the canopy serves as a barge area, enabling orderly scheduling and berthing of ships, further improving the operational efficiency of the terminal. The screw unloader is located inside the canopy and can directly unload powder from the ship's hull.

The invention belongs to the field of ocean observation, and particularly relates to a wharf offshore hydrologic monitoring system and method, the system comprises a water surface monitoring device, an anchoring transmission device and a seabed-based observation device, and remote communication connection is realized through a shore-based data receiving and processing system; wherein the water surface monitoring device is arranged above the sea surface and is suspended on the water surface through the buoyancy floating body; one end of the anchoring transmission device is fixedly connected with the lower part of the water surface monitoring device, and the anchoring transmission device is used for supporting and transmitting signals and energy; the other end of the anchoring transmission device is fixedly connected with an anchoring underframe at the upper part of the seabed-based observation device and is used for fixing the overall position of the system and realizing data transmission; the seabed-based observation device is mounted above a seabed, and establishes a data interaction path with the shore-based data receiving and processing system through a communication module of the water surface monitoring device, so that a monitoring, transmitting and receiving link from top to bottom can be formed, and automatic, synchronous and continuous observation of key hydrological elements such as waves, ocean currents, water temperatures and tide levels is realized.

The invention provides scour protection methods and systems comprising a plurality of units, wherein each unit comprises a concrete matrix having a pH of less than 12; and wherein each unit can interlock with another unit: wherein said systems promotes and enhances the marine biological fauna and flora at the proximity of offshore aquatic infrastructures.

The application provides a green offshore pumped storage energy, phase modulation and power generation system, which comprises a wind turbine or a wind turbine group, an offshore water tower, a water turbine, an excitation or permanent magnet synchronous generator and a water pumping pump, the excitation or permanent magnet synchronous generator is located in the offshore water tower, the wind turbine or the wind turbine group is located at the top of the offshore water tower or is distributed around the offshore water tower, the vertical excitation or permanent magnet synchronous generator is coaxially connected with the water turbine, a lower water outlet with a volute is arranged in the offshore water tower, a water storage tank is arranged above the offshore water tower, a tower water chamber, a tower water outlet channel, a sea outlet, a water inlet and corresponding valves and related circuit structures are arranged below the offshore water tower. The system can realize a novel offshore energy utilization, integrates offshore pumped storage energy, offshore power generation and offshore phase modulation into a unified structure, takes into account the operation state of the land power grid, fully utilizes offshore resources and improves the utilization rate of wind power generation.

The application discloses a method and system for in-situ observation of offshore seabed to inverse marine vertical temperature structure, through constructing a machine learning model of physical mechanism, performing machine learning and physical information constraint-based marine vertical temperature profile inversion, realizing high-precision and high-efficiency mapping from in-situ observation data of a single point of seabed to a temperature profile of full water depth, not only improving modeling precision and robustness, but also expanding the application range of existing inversion technology, which can be directly applied to intelligent monitoring of offshore marine environment, digital management of marine ranch, underwater operation support and marine scientific research and other fields, and has important scientific research and engineering application value. The application also solves the technical bottlenecks of applicability, real-time and accuracy of the method for mapping marine vertical temperature from sea surface observation in offshore waters, and is superior to existing statistical regression technology in terms of inversion accuracy, application range, model flexibility and engineering application convenience, and has important application prospect and popularization value.

The invention provides a combined floating breakwater capable of being rapidly laid and a unit thereof, and belongs to the technical field of ocean engineering. The combined floating breakwater comprises a floating wave absorbing structure, a buoyancy structure, a connecting device and a fixing device; the floating type wave absorbing structure comprises an inclined net-shaped wave absorbing plate and a vertical wave absorbing plate, and the inclined net-shaped wave absorbing plate is mounted on the telescopic supporting and reinforcing cross beam; the buoyancy structure comprises a buoyancy wave-absorbing air bag, a group of buoys and two inflatable buoys, the inclined net-shaped wave-absorbing plate and the vertical wave-absorbing plate are connected through the buoyancy wave-absorbing air bag, the buoys are connected through a first connecting rod, the first connecting rod is connected with the inclined net-shaped wave-absorbing plate through a first movable hinge, and every two adjacent buoys are connected through a second connecting rod and a second movable hinge. The two inflatable buoys are installed on the two sides of the inclined net-shaped wave absorbing plate respectively. The floating wave absorbing structure is connected with the fixing device through the connecting device. The wave absorbing device has a good wave absorbing effect on waves with different periods and different wave heights, and the safety and efficiency of activities in offshore waters are greatly improved.

The present invention discloses a method for inverting ocean primary productivity based on airborne dual-wavelength lidar remote sensing data. This method establishes a high-precision dual-wavelength water optical property inversion model based on the airborne dual-wavelength lidar remote sensing data, obtains a high-precision vertical profile of the ocean phytoplankton absorption coefficient, and inverts the vertical profile distribution of ocean primary productivity coupled with the high-precision phytoplankton absorption coefficient. The dual-wavelength ocean lidar, which uses one laser wavelength suitable for detecting nearshore waters and another for detecting offshore waters, improves the inversion accuracy of the maximum detection depth in near and offshore waters and the vertical profile distribution of primary productivity in typical waters, further enhancing the accuracy of the spatiotemporal evolution of the ocean carbon cycle and the observation capability of energy conversion in the upper ocean.

The utility model provides an open sea sluice wave energy dissipation grid structure which comprises an energy dissipation grid body used for being installed in an apron on the downstream portion of a sluice and a plurality of vertically-arranged energy dissipation columns arranged in the width direction of the apron at equal intervals. Each energy dissipation column comprises a lower column body used for being connected with the bottom face of the apron and an upper column body arranged on the lower column body, the cross sections of the lower column bodies and the cross sections of the upper column bodies are in an oval shape or a runway shape, the length direction of the cross sections of the lower column bodies and the cross sections of the upper column bodies is parallel to the width direction of the energy dissipation grid body, and every two adjacent lower column bodies and / or every two adjacent upper column bodies are connected through a cross beam. Connecting cross beams used for being connected with wing walls on the two sides of the apron are arranged at the two ends of the energy dissipation grid body. According to the open sea water gate wave energy dissipation grid structure, wave dissipation is carried out in the mode that the energy dissipation grid is built in an open sea side water outlet pool, the building cost is low, the structure is simple, the construction difficulty is low, no sea area is occupied, and certain application value is achieved in the aspect of protecting a water gate against wave invasion.

The present invention discloses a method for synergistic inversion of multi-component concentrations of suspended particulate matter in offshore waters, comprising the following steps: collecting measured data sets, including hyperspectral remote sensing reflectance data, total suspended particulate matter concentration TSM, organic suspended particulate matter concentration OSM, and inorganic suspended particulate matter concentration ISM; and performing preprocessing; calculating spectral feature quantities characterizing the concentrations of ISM and OSM according to MODIS band remote sensing reflectance data; inputting the ISM and OSM concentration data and their corresponding spectral feature quantities into the XGBoost algorithm for training to construct a remote sensing inversion model for the concentrations of ISM and OSM; evaluating the model accuracy using an independent validation sample set and a satellite-ground matching data set; the present invention provides an important technical means and data support for the research on marine water quality, ecological environment assessment, and related biogeochemical processes.

The utility model discloses an offshore water taking head foundation which is composed of a group pile foundation and a steel mould assembly arranged from bottom to top. The group pile foundation comprises N steel pipe piles, N pile caps and a water taking device fixing frame. The N pile caps are respectively sleeved and fixed on the top sides of the N steel pipe piles, and the top sides of the pile caps are provided with lower connecting flanges. The water taking device fixing frame comprises an annular body, and N upper connecting flanges are fixed on the bottom surface of the annular body in a circumferential direction. The steel mould assembly comprises a steel mould frame, a plurality of limiting frames are arranged side by side and spaced apart, and are fixed on the inner wall of the steel mould frame. The limiting frames are provided with pile foundation limiting holes, and the number and positions of the pile foundation limiting holes on the plurality of limiting frames correspond to the underwater setting positions of the N steel pipe piles one by one. The water taking head installation construction method implemented by using the foundation can greatly reduce the earthwork amount of the open caisson sinking process, improve the pile foundation plane positioning accuracy, and shorten the time of each construction procedure by 2-3 times compared with the traditional process operation, so that the construction efficiency is high and the cost is low.

The present application relates to a kind of offshore waters mariculture of multifunctional aquaculture system, comprising: aquaculture box, for cylindrical structure;Magnetic levitation power system, is set in the both ends of aquaculture box, including concentrically arranged inner ring assembly and outer ring assembly, inner ring assembly is connected with aquaculture box to carry aquaculture box, outer ring assembly is magnetically connected between inner ring assembly and is suspended by magnetic force inner ring assembly and drives inner ring assembly rotation to thereby drive aquaculture box rotation;Float, for hollow structure, at least be set in the both ends of aquaculture box, and with outer ring assembly connection to provide buoyancy;Intelligent monitoring control system, with aquaculture box connection, to at least control aquaculture box in seawater in the depth of floating;Multi-source clean energy system, with inner ring assembly, outer ring assembly power connection to provide electricity.The present application can solve the problem of low aquaculture efficiency caused by the problems such as the simple structure of aquaculture box in prior art, unable to respond to extreme weather, environmental pollution caused by seawater quality reduction, disaster early warning response deficiency.

The invention discloses an offshore water area ecological management and restoration device and method, the offshore water area ecological management and restoration device comprises a supporting table, a treatment box and three conveying assemblies, the treatment box is installed at the top end of the supporting table, and the three conveying assemblies are installed at one end of the treatment box; the filtering frame is arranged at the top in the treatment box; the two medicament tanks are arranged at one end of the upper surface of the supporting table; the stirring assembly I is arranged in the treatment box; the discharging pipe is arranged at the bottom end of the treatment box; and the transfer pump is arranged between the medicament tank and the treatment box. According to the offshore water area ecological management and restoration equipment and the restoration method, the offshore water area substances are conveyed to the treatment box through the conveying assembly, and are fully mixed and reacted with chemicals added into the chemical tank through the stirring assembly in the treatment box, so that various pollutants, such as heavy metals, organic matters and nutritive salts, in the offshore water area can be comprehensively treated; the treatment effect is improved.

A hydropower plant with offshore water supply includes at least one water intake structure, underground penstock, turbine, and tailrace. The water intake structure has a base built on a continental shelf of a water body and a water intake at an elevation above the base. The penstock has an inlet connected to the base and an outlet. The turbine is mounted on a turbine machine floor in an underground turbine room at an elevation lower than the base. The turbine has an inlet port connected to the penstock outlet and an outlet port connected to the tailrace. The inlet receives fluid from the water intake; the inlet port receives fluid from the outlet of the penstock; and the tailrace receives fluid from the inlet port and conveys the fluid to the water body.

The invention relates to a water filtering sand pool water taking system which comprises a water taking sand pool, a water taking part and a water conveying part, the water taking sand pool is arranged in an offshore water area, the water taking part is arranged in the water taking sand pool, the water taking part comprises at least one layer of water taking pipe system, and the water taking pipe system comprises a plurality of water-permeable filtering pipelines parallel to one another and a water-impermeable connecting pipeline; a plurality of water permeable holes are uniformly distributed in the side surface of the filtering pipeline, and a nylon wrapping net covers the outer side of the filtering pipeline, so that the water quality filtering effect is improved, and the filtering pipeline is protected; the water conveying part is arranged on land, a water pump and a water conveying pipe of the water conveying part are connected in parallel with a plurality of filtering pipelines through connecting pipelines, and water can be taken from the water taking sand pool; an extra-coarse sand filtering layer, a coarse sand filtering layer and an extra-coarse sand cushion layer are arranged in the water taking and sand pond from top to bottom, and the water taking pipe system is embedded in the coarse sand filtering layer or the extra-coarse sand cushion layer and is used for extracting filtered water.

The invention discloses a desilting geological detection method for inland river and offshore water, and relates to the technical field of geological detection, the geological detection steps are as follows: S1, using an unmanned aerial vehicle to carry a laser radar to fly in a to-be-detected area, and obtaining underwater topographic information data of the to-be-detected area through two-dimensional point-by-point scanning; detecting depth data in cooperation with a bottom mud detection rod, and constructing a three-dimensional image after preprocessing; and S2, based on an edge detection method, processing the constructed three-dimensional image elevation data, calculating the gradient of each pixel point, setting a gradient threshold to determine edge points, connecting the edge points to form a contour, and identifying the complex terrain position in the to-be-detected area. According to the method, the key dredging position can be judged and processed, accurate implementation of the dredging project can be ensured, the dredging efficiency is improved, resource waste is reduced, the benefits of the dredging project are played to the maximum extent, the underwater complex terrain area is effectively detected, the detection precision is improved, and decisions are provided.

The present invention belongs to the field of electrochemical water treatment and provides a floating electrochemical device for offshore oil pollution treatment. The device comprises a solar panel, a fixing nail, a solar panel positive electrode, a solar panel negative electrode, a solar controller, a solar controller positive electrode, a solar controller negative electrode, screws, a battery, a battery positive electrode terminal, a battery negative electrode terminal, a fixing bracket, a wooden board, a gas diffusion electrode, a ruthenium-iridium-titanium electrode, an LPC-FeOCl catalyst layer, a wire, a conductive copper foil, an aeration pump, a waterproof insulating mat, and an aeration tube. The device uses a gas diffusion electrode loaded with an LPC-FeOCl catalyst as the cathode and a ruthenium-iridium-titanium electrode as the anode. The solar panel provides power for the electrochemical reaction. The gas diffusion electrode uses oxygen in the air to synthesize H2O2, and the FeOCl activates H2O2 to produce OH, forming an electro-Fenton system. The device has low energy consumption, is green and pollution-free, and is simple to operate. It can effectively degrade oil pollutants, further addressing the problem of offshore water pollution.

The invention and manufacture of a multifunctional amphibious solar tricycle belong to the field of traffic transportation and comprehensive solar energy utilization technology. The technical points of the tricycle are the improvement of the structure of the tricycle, the one-time composite forming of the amphibious vehicle body, the folding solar photovoltaic power generation vehicle body, and the waterproof sealing overall assembly forming of the amphibious solar tricycle. The tricycle can be used as a normal electric tricycle when driving on land, and can also drive freely in rivers, lakes, and offshore waters. The integrated solar photovoltaic panel of the tricycle can convert solar energy into electrical energy to charge the battery. The folding floating plate, hidden air bag, land driving and water driving centralized control system, fully sealed roof cover, hidden self-rescue safety measures, water positioning winch, and self-draining safety system in the vehicle of the tricycle design make the tricycle can be widely used in the fields of aquaculture professional households, express delivery, freight transportation, exploration, tourism motor homes, etc.

The invention discloses an offshore forebay limited space shield launching structure and a construction method, and belongs to the technical field of shield construction.The offshore forebay limited space shield launching structure comprises a hole launching assembly, a counter-force frame and an unearthing mechanism, the hole launching assembly comprises a steel sleeve and a semi-ring pipe piece, the steel sleeve is installed at a launching hole and pre-buried at the launching hole, and the semi-ring pipe piece is installed on the steel sleeve; the length of the part, penetrating out of the starting hole, of the steel sleeve ranges from 45 cm to 55 cm, and the semi-ring segment is installed on the side, away from the starting hole, of the steel sleeve; the counter-force frame is arranged on the side, away from the steel sleeve, of the semi-ring pipe piece. The unearthing mechanism comprises a winch and a flat car, the flat car is used for bearing muck, and the winch is used for pulling the flat car out of the launching hole. According to the method, the occupation of the space in the offshore forebay can be effectively reduced, and the water intake tunnel can be directly excavated by taking the offshore forebay as a starting well, so that the construction efficiency is improved, and the occupation and damage of large-area excavation and backfilling to land resources in an offshore water intake project are reduced.

The application discloses a kind of offshore water invasion gas reservoir injection CO2 inhibiting water invasion effect analysis method, comprising the following steps: S1: obtaining offshore water invasion gas reservoir production well gas reservoir production data and gas reservoir dynamic parameter;S2: according to the gas reservoir dynamic parameter constructs offshore water invasion gas reservoir geological model and offshore water invasion gas reservoir numerical simulation model;S3: according to the gas reservoir production data completes the history fitting and verification of the offshore water invasion gas reservoir geological model and the offshore water invasion gas reservoir numerical simulation model;S4: preferred injection well, and using the offshore water invasion gas reservoir numerical simulation model carries out injection CO2 inhibiting water invasion numerical simulation to preferred injection well, when numerical simulation, consider CO2 breakthrough and the influence of water content on CO2 inhibiting water invasion effect.This application can more reasonably analyze and obtain offshore water invasion gas reservoir injection CO2 inhibiting water invasion effect, to better optimize injection scheme, provide technical support for offshore water invasion gas reservoir development.