91 results about "Tidal range" patented technology

The invention belongs to the technical field of material and coating corrosion tests, and relates to a whole sea area atmospheric environment comprehensive simulation test system, which adopts an integrated structural design, and performs integrated coupling of various environmental test simulation capabilities on the basis of a single-function test box. The device has the test capabilities of metal material corrosion acceleration test, organic composite material and coating aging evaluation and the like, can simulate the global marine atmospheric environment and coupling of multiple factors such as air temperature, humidity, salt mist and ultraviolet irradiation, can perform comprehensive test evaluation on the whole-sea-area marine atmospheric environment of typical materials, avoids the problem of inconvenient operation of corrosion tests, and has a wide application prospect. The device can be used for corrosion and ultraviolet aging tests of conventional marine atmospheric environment corrosion media, polar regions, tropical regions and other extreme marine atmospheric environments, and material corrosion tests for simulating marine splash zones, tidal range zones and the like. The device is simple in structure and convenient to operate, and coupling of multiple factors of high and low temperature, humidity, salt mist, ultraviolet illumination and periodic infiltration can be achieved.

The invention provides a reservoir pressure salinity scheduling method based on a physical information neural network (PINN). The reservoir pressure salinity scheduling method comprises the following steps: Step 1, salinity prediction based on a physical information neural network (PINN) model; the method comprises the following steps: in a PINN model framework, embedding a physical law of salinity conservation into a multi-layer perceptron (MLP) artificial neural network for training so as to carry out salinity prediction; step 2, establishing an estuary water-salt model based on a three-dimensional ocean numerical FVCOM model; step 3, carrying out upstream reservoir salty water pressing and light water supplementing emergency scheduling based on salinity forecast; comprising the following steps: Step3.1, establishing a multi-objective function; and Step3.2, solving a scheduling model. According to the method, the salinity momentum conservation constraint can be considered, the salinity prediction accuracy under the influence of different upstream flows and downstream tidal ranges can be improved, and the emergency scheduling of the reservoir for the salt tide invasion of the estuary drinking water source can be carried out in combination with the scheduling model, so that the water supply safety is ensured.

The invention discloses a test device and a test method for simulating a sea wave etching environment, and relates to the technical field of environment test and observation.The test device comprises a box body which is used for containing seawater and a sample and is of a sealed structure; the stirring blade is used for stirring seawater in the box body to generate simulated sea waves, the inner bottom of the box body is arranged, and one end of a driving shaft for driving the stirring blade extends out of the box body and is connected with the output end of the driving device; the bracket is used for fixing a sample, the bracket is arranged in the box body, the bracket is positioned above the stirring blades, and a water permeable channel is arranged on the bracket. The real sea wave impact effect and the real seawater splashing effect can be restored. The liquid level height of seawater in the box body can be adjusted, and the real effects of a total immersion area, a quasi tidal range area and a splashing area are achieved. The driving device is arranged on the outer side of the box body and is not affected by seawater. The test method for simulating the sea wave etching environment is based on the test device for simulating the sea wave etching environment.

The invention provides a floating photovoltaic split mooring platform, and belongs to the technical field of ocean engineering. The platform mainly comprises at least one floating body, and the floating body is provided with a first floating frame and a second floating frame. Wherein a photovoltaic panel is mounted on the first floating frame; the first floating frame is in sliding connection with the second floating frame, and a damper is arranged between the first floating frame and the second floating frame; and the second floating frame is connected with the berth. The floating body is designed to be of a split type structure, through sliding connection, heaving displacement generated by tide level changes is absorbed by the first floating frame in a self-adaptive mode, the stress state of the second floating frame is not obviously changed, tidal range input is prevented from directly acting on the whole, then forced coupling of the tidal range to the mooring system is weakened, and the mooring effect is improved. The mooring peak tension and the cyclic fatigue risk are obviously reduced; furthermore, the second floating frame can be moored and deloaded through the split design, safety protection is enhanced, and the safety, reliability and applicability of the platform in a large-tidal-range shallow sea area are remarkably improved.

The invention relates to the technical field of breakwaters, in particular to a breakwater embedded with an oscillating water column type wave energy power generation device adapting to tidal range variation, which comprises a breakwater body, a plurality of mounting grooves are formed in the head wave surface of the breakwater body and are respectively arranged at intervals in the horizontal direction, and a driving system is arranged in each mounting groove. The driving system is connected with an oscillating water column type wave energy power generation device, and the oscillating water column type wave energy power generation device is driven by the driving system to ascend and descend in the vertical direction. A plurality of oscillating water column type wave energy power generation devices are embedded in the head wave face of the breakwater body at intervals, and the heights and opening orientations of the oscillating water column type wave energy power generation devices are flexibly adjusted through the driving system so as to adapt to and be matched with tidal range changes and incoming wave direction changes of a service sea area; on the basis of maintaining stable mooring conditions in the harbor, energy absorption and capture of waves with different tide levels and incoming wave directions are achieved in an efficient mode, and the capture efficiency is improved to the maximum extent.

The invention provides a tidal reach water level prediction method, device, equipment and medium, and the prediction method comprises the following steps: collecting historical data and current time period data, the historical data and the current time period data comprising actually measured runoff data, actually measured water level data and actually measured tidal range data; lagging adjustment is conducted on the actually measured runoff data and the actually measured tidal range data with the actually measured water level data as the benchmark through a cross-correlation analysis method; performing EEMD decomposition to obtain respective intrinsic mode functions and residual errors; and outputting the eigenmode function of the water level data of the analysis station in the future time period and the predicted value of the residual error through the LSTM model, and carrying out superposition to obtain the predicted value of the water level of the tidal reach. According to the method, the water level data, the runoff data and the tidal range data of the tidal reach are subjected to conjoint analysis, the problems of nonlinear signal processing and low precision of the water level of the tidal reach are effectively solved through EEMD decomposition and the LSTM model, and the prediction accuracy of the water level of the tidal reach is greatly improved.

The present invention discloses a deep-water gravel bed dredging system and a dredging construction method thereof, and belongs to the technical field of underwater bed construction. It includes a floating body, a gantry trolley mechanism, a dredging device, a bottoming device and a monitoring device; the dredging device is connected to the gantry trolley mechanism, and the bottoming device is connected to the gantry trolley mechanism through a cable; the monitoring device is connected to the bottoming device, and the monitoring device determines the real-time contact state between the bottoming device and the surface of the dredged area according to the force change of the monitoring device, and controls the gantry trolley mechanism to drive the dredging device and the bottoming device to rise and fall synchronously, so that the bottoming device is adjusted in real time to be between a completely bottoming state and a completely disengaged state, so that the dredging device is at an operating depth. The present invention solves the technical problem that the dredging system in the prior art cannot effectively control the operating depth of the dredging device according to the change of tidal range in a large water depth environment.

The invention provides a device for ice load measurement and ice-induced vibration suppression and an ocean structure. The device for ice load measurement and ice-induced vibration suppression is characterized by comprising a fixed strut beam structure (2) which is arranged on the outer surface of an upright or nearly upright ocean structure and is axially parallel to the ocean structure, and a steel plate (1) covering the range of a tidal range zone is arranged on the outer side of the strut beam structure (2) in a sleeving mode. And a stress measuring device (3) is mounted on the inner side of the strut beam structure (2). The fixed strut beams and the steel plates are installed on the outer surface of the ocean structure, the contact form of sea ice and the structure is changed, the crushing mechanism of the sea ice is disturbed, the energy of the sea ice is absorbed, the vibration amplitude is reduced, meanwhile, real-time monitoring of the ice load is achieved, frequency locking vibration is eliminated, and the safety and stability of the structure are ensured.

The invention provides an ice-thorn-resistant structure, and relates to the technical field of offshore wind power ice-resistant structures, the ice-thorn-resistant structure comprises a pile column mechanism, a cage sleeve mechanism, a driving mechanism and a plurality of ice-thorn mechanisms, the cage sleeve mechanism is slidably connected with the pile column mechanism, and the cage sleeve mechanism is sequentially provided with the plurality of ice-thorn mechanisms in the circumferential direction of the cage sleeve mechanism; the driving mechanism is connected with the pile column mechanism and the cage sleeve mechanism, and the driving mechanism is used for driving the cage sleeve mechanism and the multiple ice thorn mechanisms to move in the extending direction of the pile column mechanism. The technical problems that in the prior art, an existing ice-resistant structure is large in weight, complex to mount and dismount and incapable of adapting to tidal range changes are solved.

The present application relates to the technical field of material performance testing, and discloses a material corrosion testing device and testing method for simulating ocean acidification environment, comprising: a closed simulation testing cabin, which is internally divided into a top-down salt mist simulation cabin, a wet heat simulation cabin and a high-pressure immersion simulation cabin by horizontally arranging openable and closable upper and lower insulation boards, and is provided with a cabin door with a sealing structure at the top; through the independent modular design of the salt mist simulation cabin, the wet heat simulation cabin and the high-pressure immersion simulation cabin, and the automatic switching function of the rotatable lifting sample holder, the present device realizes precise coupling and seamless switching of corrosion environments such as salt mist spraying, high temperature and high humidity, and deep sea high pressure, and the sample can complete the whole cycle corrosion behavior research of the marine atmospheric zone, the splash zone, the tidal zone and the full immersion zone on the same platform, and eliminates the interface effect caused by the traditional multiple equipment series connection testing.

The invention discloses an efficient dredging device in an underwater limited space and a construction method of the efficient dredging device, and belongs to the technical field of underwater sludge cleaning. The desilting device comprises a vertical steel frame, a horizontal cross arm, RTK measuring equipment, a bottom device, a water suction opening, a flushing opening, a balancing weight, a molten steel pipe, a transparent rubber steel wire hose and a foam buoy. Wherein the vertical steel frame is horizontally welded with the horizontal cross brace; the bottom device is welded to the bottom of the vertical steel frame, a water suction opening is formed in the top of the bottom device, and a water suction opening and a water outlet are correspondingly formed in the bottom. According to the method, channel steel, steel pipes, steel plates, slurry pumps, RTK measuring equipment and other conventional materials and equipment are adopted, the desilting construction conditions of the underwater limited space can be met, construction is not affected by tide fluctuation, wind power and other natural factors, the construction period can be shortened, the underwater desilting quality can be guaranteed, an original revetment cannot be damaged in the construction process, and the construction period is shortened. And the overall construction cost is greatly reduced.

This invention relates to a self-buoyant gravity-driven positioning pile and a stake-type aquaculture cage, comprising a pile body, a pile tip fixed at the bottom end of the pile body, a pile lifting eye plate fixed at the top end of the pile body, and three watertight baffles arranged vertically within the pile body. This self-buoyant gravity-driven positioning pile and stake-type aquaculture cage features a simple and low-cost pile construction. It utilizes the cage's own buoyancy to achieve autonomous pile driving and lifting, which is significantly cheaper than traditional methods using lifting systems. Therefore, it greatly reduces the cost of the aquaculture cage. The cage is easy to operate, freely lifting and lowering using its own ballast system to assist in fish harvesting, maintenance, adapting to tidal changes, and providing full-submersion typhoon resistance. Through the balance between its own buoyancy and gravity, and with the adjustment of the float's weight and the ballast system, it achieves pile driving, lifting, and float raising / lowering operations, greatly reducing construction and operating costs.

The invention discloses a construction method of a coastline protection structure, which comprises the following steps: excavating a foundation trench, laying a sandy soil and gravel alternate composite layer in layers, compacting, mounting a prefabricated reinforced concrete frame structure on the surface, connecting polygonal frame units by pre-embedding twisted steel, filling high-density polyethylene particles in through holes, covering steel wire meshes, and carrying out construction. And meanwhile, a drainage blind ditch with a drainage pipe wrapped by double-layer permeable geotextile is arranged on the back sea side, and the drainage pipe with the longitudinal gradient larger than or equal to 5% extends to the position below the low tide level line to form a multidirectional drainage path. The method is suitable for coastline protection with frequent tidal range, can effectively reduce the risk of emptying the base, inhibits the dispersion of the filler, adapts to the differential settlement of the foundation, and maintains the ecological function of the intertidal zone.

The invention provides a method for quantifying tidal non-stationarity, and belongs to the technical field of natural science research based on nonlinear data analysis. Firstly, hour-by-hour tide observation data with the observation duration not less than one month in a target sea area are obtained; separating non-tidal low-frequency and high-frequency tidal changes in the data by using an empirical mode decomposition method, and extracting a tidal component; returning the tide component through a classical harmonic analysis CHA model to obtain CHA return tide; then calculating a correlation coefficient, a mean absolute error and a root-mean-square error of the tidal component and the CHA, and respectively dividing the mean absolute error and the root-mean-square error by an average value of the observation absolute values to obtain a normalized index; finally, (1, 0, 0) is used as a reference point, (CC, NMAE, NRMSE) is used as an observation point, and the tidal non-stationarity index NS is calculated according to a two-point distance formula. The device can be widely applied to global sea areas and is suitable for sea areas of different tide types and sea areas of different tidal ranges.

The application discloses a kind of tidal river network sluice operation data model processing method, system and terminal, it is related to sluice operation analysis technical field, and its technical scheme main points are: initial outer river tidal level is carried out noise reduction pretreatment, and sliding average is carried out;Select the smooth result of the highest matching degree of rising and falling tide trend, and carry out abnormal fluctuation elimination processing;The rising and falling tide trend in standard smooth result is analyzed;Rising and falling tide trend result and water level difference threshold are loaded in Infoworks RTC module;Different water level difference threshold is tried, and the optimal water level difference threshold of sluice opening and closing is determined, to obtain final Infoworks RTC module.The application is carried out to the smooth processing of outer river tidal level data, and the outer river tidal drop process is judged, according to the inner and outer river tidal difference to control the opening and closing of sluice, reach water quality model operation working condition and actual engineering working condition consistent, provide strong support for later water power water quality model rating.

The invention relates to the technical field of ocean engineering foundation structures, and discloses a distributed anchoring foundation suitable for shallow water and high tidal range, which comprises a suction anchor foundation, a gravity anchor foundation, a pulley assembly, a high-strength mooring chain and a floating body, the invention further provides a construction method of the distributed anchoring foundation suitable for the shallow water and the high tidal range, and the construction method comprises the following steps that S1, according to seabed geological conditions, the penetration depth of the suction anchor foundation and the balance weight parameters of the gravity anchor foundation are determined; s2, the suction anchor foundations are positioned on the left side and the right side of the seabed and fixed in a penetrating mode in a negative pressure mode; s3, a pulley assembly is installed on the gravity anchor foundation, and the gravity anchor foundation is hoisted at a preset position; and S4, mounting a pulley assembly at the bottom of the floating body. The suction anchor foundation and the gravity anchor foundation are combined into a distributed cooperative structure, a stable system with multi-point stress and multi-path force transmission is established, and the technical effects that the dynamic load is adjustable, and the tidal range adaptability is high are achieved.

The application provides an anti-ice self-climbing floating offshore photovoltaic structure, which comprises a floating structure unit and a photovoltaic array arranged above the floating structure unit; the floating structure unit comprises a floating foundation and a truss structure, and an anchoring system flexibly connecting the floating structure unit and a mud surface of the seabed; a supporting leg part is arranged at the bottom of the truss structure, and the supporting leg part is connected with the upper part of the floating foundation, so that an external part surrounded by the floating foundation forms an anti-ice space, and the cross-sectional area of the top of the floating foundation is larger than the cross-sectional area of the bottom submerged in the sea; the floating offshore photovoltaic structure provided by the application has the characteristics of strong anti-wind and anti-wave and anti-ice capabilities in severe sea conditions, and has the bottom sitting capability, so as to be suitable for shallow water areas with large tidal range and easy beach sitting, improve the reliability of the structure, ensure the stability of the structure movement, and further reduce the risk.

The utility model relates to the technical field of wharf ship lap joint gangway ladder protection, in particular to a wharf ship lap joint gangway ladder suitable for large tidal range. Comprising a supporting frame and a hanging rod arranged on the supporting frame, the hook assembly is arranged on the supporting frame, the hanging rod is arranged on the supporting frame, the hook assembly is arranged on the hanging rod, and the rolling shaft assembly is arranged on the hanging rod. And the connecting rod is rotationally connected with the hanging rod. The hook assembly is used in cooperation with a supporting mechanism, the angle of the hook assembly can be changed along with rising or falling of ship draft, the hook assembly can be used for a long time at a certain height difference between a ship main deck and a wharf, manpower and time wasted by adjustment of a gangway ladder are greatly reduced, and efficiency is improved.

The present application discloses a method, device, and medium for predicting the vertical distribution of suspended sediment in the maximum turbidity zone, which relates to the field of electronic digital data processing. The method comprises: obtaining sample data; constructing a suspended sediment vertical distribution prediction model based on the sample data using the Rouse formula; obtaining parameter data such as the water depth, tidal range, and surface and bottom sediment concentrations of the maximum turbidity zone in the estuary region to be predicted, and using the suspended sediment vertical distribution prediction model to determine the sediment concentration at different vertical distances from the water bottom based on the parameter data; and determining the vertical distribution of suspended sediment in the maximum turbidity zone in the estuary region to be predicted based on the sediment concentration at different vertical distances from the water bottom. The present application can effectively and accurately predict the vertical distribution of suspended sediment in the maximum turbidity zone in the estuary region.

A concave hermetic air / brine encapsulating vessel, or cap 10, positioned in the sea at a chosen area according to tidal range. Wherein the open underside of the vessel allows brine / sea water to freely enter or exit the vessel and the tide rises and falls respectively. This rise and fall of the brine within the vessel will result in changes to the air pressure within the vessel, as the air because pressurised as the brine rises, and forms a vacuum with the vessel as the brine falls. These changes in pressure are used to operate a pneumatic actuator 60, via a suitable system of valves 50,52 coupled to the inlets and / or outlets of a pipe couple to a vent 30 on the upper portion of the vessel, or within a plurality of pipes couple to a manifold 40 coupled to the vent 30. Wherein the operation of the pneumatic actuator 60 powers a generator 62 for producing and storing power.

The purpose of the present invention is to provide a wave power generation device capable of dealing with tidal fluctuations. That is, the present invention comprises: a foundation structure (10) that is installed upright on the seabed and has a pile member driven therein; leveling structures (20A, 20B) that are installed on the foundation structure (10) and are adjusted in height in response to changes in sea level caused by tidal fluctuations; and a seawater guide pipe (30) which is installed on the leveling structures (20A, 20B) and has an inclined flow path (31) having one end submerged in seawater and the other end exposed outside the surface of the seawater, and which drives a wave power generator (100) by collectively utilizing the longitudinal and transverse wave energy of seawater moving at an inclined angle along the inclined flow path (31). The wave power generation device has an improved structure in which the height of the seawater guide pipe changes in response to changes in sea level, and thus can uniformly sustain wave power generation even in environments with significant tidal fluctuations.

The invention provides an additional weight tensioning type mooring system which comprises a plurality of mooring cables, each mooring cable comprises an upper-section cable, a lower-section cable and 0-N middle-section cables, every two adjacent cable sections are connected through a weight, the upper end of each upper-section cable can be connected with a fan mounting floating plate, and the lower end of each lower-section cable can be connected with a fan mounting floating plate. And the lower end of the lower-section cable can be connected with an anchoring point on a seabed. The tension type mooring system has the beneficial effects that the tension type mooring system is combined with the heavy block, and the elasticity of the mooring rope on the tension type mooring system and the gravity of the heavy block are combined through reasonable configuration, so that the whole system has the advantages of a catenary type mooring system and the tension type mooring system, the tension distribution state of the whole mooring rope is improved, and the mooring efficiency is improved. Under the conditions of shallow water and large tidal range, the mooring line can keep certain recovery rigidity at a high water level and a low water level, and under the two water levels, the draft change of the platform is small, so that the stability of the platform is guaranteed.

This invention relates to a smart forecasting method for saltwater intrusion in the Yangtze River Estuary based on multi-source data fusion and machine learning. The method includes: acquiring hydrological monitoring data, including flow rate, tidal level, wind vector, and reservoir salinity; constructing an input feature set by performing physical feature derivation processing on the data: calculating tidal range features based on tidal level to characterize tidal dynamics, calculating regional average features based on wind vector to characterize wind field driving, and performing phase correction on the flow rate data according to the runoff-salinity lag relationship; combining the above-mentioned derived features with basic tidal level features and historical salinity features, and inputting them into a pre-trained neural network model. This model uses a bidirectional long short-term memory network layer to capture temporal dependencies and utilizes a multi-head attention mechanism layer to dynamically focus on key information, outputting the future salinity prediction value of the target reservoir. This invention can ensure rapid response and high computational efficiency while possessing excellent prediction accuracy and stability, and ensuring that the prediction results conform to hydrophysical laws.

The invention relates to the technical field of corrosion tests and equipment, in particular to a tidal range natural acceleration device and a test method.Seawater liquid level changes are monitored in real time through a liquid level sensor, the natural rising tide frequency a and falling tide frequency b of the previous day are obtained, a sample frame is controlled to execute up-down reciprocating motion at N times of frequency, and N is the acceleration rate; and after a plurality of test periods, respectively measuring the corrosion rates of the accelerated test and the naturally exposed sample, calculating the acceleration ratio, and constructing a gray prediction model based on the relationship between the acceleration ratio and time for extrapolating and predicting the natural corrosion behavior of the material in a longer period. According to the invention, a mechanical lifting system capable of being accurately controlled is constructed in a natural seawater tidal range region, so that the frequency of a material drying and wetting alternation process is enhanced, and the corrosion process is obviously accelerated on the premise of not changing the authenticity of a marine environment; the double problems that a traditional indoor acceleration test is poor in correlation with the actual service environment and the natural exposure test period is too long are solved.

This invention discloses a method for estimating long-duration design tidal process lines, comprising: preprocessing and frequency analysis of historical tidal data to obtain the design high tide level, design flood tide range, and design ebb tide range; selecting a typical long-duration tidal process containing the highest tide level, and selecting a "one flood, one ebb" process at a later position as the main tidal type according to the principle of "high tide level - long duration - later high tide level", with the rest being secondary tidal types; using the design high tide level, design flood tide range, and design ebb tide range to perform same-frequency combination design on the main tidal type to obtain the design main tidal type process; using the scaling ratio of the corresponding phase points of the design main tidal type and the measured main tidal type as a benchmark, scaling the secondary tidal types accordingly to obtain the design secondary tidal type processes; and splicing the results to obtain the complete long-duration design tidal process. This invention overcomes the limitation of existing methods that can only deduce "one flood, one ebb" processes and is applicable to the calculation of any long-duration design tidal process.

The invention relates to a large tidal range marine environment steel pipe pile lock catch cofferdam leaking stoppage system and a construction method. The construction method comprises the following construction steps that S1, measurement and positioning are conducted; s2, inserting and hitting a steel casing and designing a cofferdam; s3, digging a guide hole; s4, lock catch steel pipe piles are manufactured; s5, lock catch pretreatment; s6, hole guiding concrete is poured; s7, lock catch steel pipe piles are inserted and driven; s8, the enclosing purlin is put down; s9, mounting a counter-pull leakage-proof device; s10, pouring concrete in the pile; s11, pumping water in the cofferdam; s12, desilting is conducted in the cofferdam; s13, the enclosing purlin lowering device is dismantled; s14, the steel casing is dismantled; s15, pouring a bearing platform; and S16, the cofferdam is dismantled. Through the design of the lock catch type steel pipe pile, lock catches are tightly connected, and water leakage is effectively prevented; in a high-tidal-range environment, a counter-pull leakage-proof device is adopted to push a steel strand to contract inwards through a hydraulic rod, the cofferdam is hooped, lock catch gaps are reduced, and the sealing performance of the cofferdam is further enhanced; and the design of three layers of enclosing purlins is adopted, so that the overall stability of the cofferdam in a high-tidal-range environment is ensured.

The invention relates to a large tidal range strong back-silting sea area steel pipe pile construction method based on harbor basin desilting, which comprises the following steps: S1, arranging a plurality of harbor basins at the upstream of a bridge along the axis direction of the bridge, and enabling the water depth of the tide level where the harbor basins are located to be not lower than a first preset value through desilting; s2, the pile driving barge sails to the position of the harbor basin and is anchored and positioned; s3, when the tide level is lowered to be lower than the first tide level, the pile driving barge conducts construction preparation operation of the steel pipe piles in the harbor basin; s4, when the tide level rises to be larger than the second tide level, the pile driving barge moves to the target pier, steel pipe piles are inserted and driven, and returning is completed and the pile driving barge stops in the harbor basin before the tide level is lowered to be lower than the first tide level; and S5, according to the tide period, the pile driving barge is moved, and the step S3 and the step S4 are repeated till construction of all the steel pipe piles on the upstream of the bridge is completed. A harbor basin point is used as a construction operation preparation area, so that the back-and-forth navigation time between a construction area and an anchoring ground caused by insufficient tide level is effectively shortened, and the pile pitching efficiency is improved.

The invention discloses a sacrificial anode device of a steel structure and a preparation method thereof, the sacrificial anode device comprises a fixing device, a plurality of sacrificial anodes and a filler, the fixing device is arranged on the outer side of the steel structure, the plurality of sacrificial anodes are arranged between the fixing device and the steel structure, and the filler is suitable for filling the peripheral sides of the plurality of sacrificial anodes. The sacrificial anodes are connected to the steel structure through wires, and the sacrificial anodes are formed by wrapping active metal in long-acting activation mortar. According to the method, the problem that traditional coating protection, underwater sacrificial anode protection and impressed current cathode protection cannot fully protect the steel structure in a tidal range zone and a splash zone can be effectively solved.

The invention provides a floating fan series buoy mooring system suitable for shallow water and large tidal range sea areas, which comprises a plurality of tensioning mooring cables, two ends of each tensioning mooring cable can be respectively connected with a seabed and a fan mounting floating body, each tensioning mooring cable comprises at least two sections of mooring cables, and two adjacent sections of mooring cables are connected through buoys. Wherein the mooring cable at the lowermost section is a bottom-section mooring cable, the lower end of the bottom-section mooring cable can be connected with a seabed, the mooring cable at the uppermost section is an upper-section mooring cable, and the upper end of the upper-section mooring cable can be connected with a mounting floating body of a fan. The tension type mooring system has the beneficial effects that the tension distribution state of the whole mooring line is improved by adopting the tension type mooring system and reasonably configuring the buoys, so that the mooring line can keep certain recovery rigidity at a high water level and a low water level under the conditions of shallow water and large tidal range, and the service life of the mooring line is prolonged. The displacement of the floating body at the low water level is effectively limited, meanwhile, the tension of the mooring line is effectively prevented from being sharply increased at the high water level, and the mooring cost is effectively reduced.

The present invention provides a device and method for measuring corrosion potential in a tidal range zone. The device includes a data collector and a test tube. A first float, an electromagnet, a first limiting rod, a second limiting rod, and a reference electrode are provided in the test tube. A first through-slot and a second through-slot are symmetrically provided on the wall of the test tube. Multiple baffles are distributed in the first through-slot and the second through-slot. One end of the first float is connected to the electromagnet and the other end is connected to the reference electrode. One end of the first limiting rod is a first connecting end and the other end is a first free end. The first connecting end is rotatably connected to the left end of the electromagnet. One end of the second limiting rod is a second connecting end and the other end is a second free end. The second connecting end is rotatably connected to the right end of the electromagnet. When the electromagnet is energized, the first free end and the second free end are magnetically attracted to the left and right ends of the electromagnet, respectively. When the electromagnet is de-energized, the first free end extends into the first through-slot and is blocked by the baffle, while the second free end extends into the second through-slot and is blocked by the baffle. The present invention utilizes the coordinated action of a first float, an electromagnet, a first limiting rod, a second limiting rod, and a baffle to adjust the height of the reference electrode. The reference electrode stops moving when it reaches the test position, triggering a connection between the reference electrode and the test position to form a conductive circuit, enabling automatic monitoring of the corrosion potential at different heights of the sample being tested in the tidal range. By controlling the on and off states of the electromagnet, automatic potential measurement at different heights is achieved in a smart way, tailored to the ebb and flow of the seawater.