36 results about "Coastal sea" patented technology

The invention relates to a multi-type power supply capacity long-term planning method considering offshore wind power access. A modeling method of offshore wind farm output is proposed based on the correlation theory. The problem of offshore wind power absorption is introduced into the power planning level. Considering the peaking capacity constraints of multi-type power supplies and the system reliability constraints based on stochastic production simulation, the capacity optimization model of multi-type power supplies is established with the construction and operation economy as the goal, and the particle swarm optimization algorithm is used to solve the problem. The method is simple and practical and has high operability and solves the problem that the traditional planning method only pays attention to economic indicators and does not consider enough the peak shaving capability and reliability of the system. The method can solve the problem of peak shaving difficulties faced by windpower absorption and has great significance to ensure wind power absorption and safe and stable operation of the power grid and provides a feasible scheme for long-term power supply planning in coastal and offshore provinces rich in wind power resources.

The invention discloses a water quality conditioner for inhibiting harmful algae, which mainly comprises the following components in percentage by weight: 10-60% of soluble silicon metered based on SiO2, 10-60% of calcium oxide, 1-20% of magnesium, and 1-25% of phosphorus. When the water quality conditioner is in use, the components are proportioned and uniformly mixed to form a blending agent, and the blending agent is scattered on a water surface in a dry way in the morning in a selected clear day, with 5-10kg per mu. The water quality conditioner can fully meet the nutrition and ecologicalrequirements of the bloom of beneficial algae such as microalgae so as to ensure that the microalgae beneficial to aquaculture is greatly bloomed and harmful algae such as blue-green algae is inhibited; after the water quality conditioner is applied for 3-7 days, the water body is improved, the beneficial algae such as the microalgae is bloomed while the harmful algae such as the blue-green algaeand the like are massively extincted, and the water body becomes rich, active, delicated and clear. The invention can be widely applied to various water areas such as ponds, reservoirs, lakes, coastal sea and the like and the treatment and prevention of the harmful algae in the culture of fishes, shrimps and crabs, and has no damage to human bodies and aquatic organisms.

The invention discloses floating fan equipment for a medium-depth water area. The floating fan equipment comprises a wind turbine generator, a fan tower, a floating foundation and a mooring device from top to bottom. The wind turbine generator is mounted at the upper end of the fan tower; the lower end of the fan tower is fixed on the floating foundation; and the mooring device is connected to thefloating foundation and is used for mooring equipment on a seabed. The floating foundation comprises a main stand column, four auxiliary stand columns and a cross-shaped buoy. The four auxiliary stand columns and the cross-shaped buoy are symmetrically distributed relative to the main stand column in space, the four auxiliary stand columns are connected to the four ends of the cross-shaped buoy respectively, the top faces of the four auxiliary stand columns are distributed at the four corners of the square projection plane, the cross-shaped buoy intersects on the central axis of the floatingfoundation, and the main stand column stands over the intersection of the cross-shaped buoy. An effective solution is provided for development of the floating wind power technology in the medium-water-depth sea area within 30-100 m; the structure is simple and stable, the foundation construction difficulty and manufacturing cost are not high, draught is deep, and the wave resistance is good; and the requirement for development of wind power generation in the coastal sea area is quite met.

The invention discloses a method for establishing a coupling model for simulating an offshore seawater exchange rule. The method is specifically implemented according to the following steps: step 1, establishing a Mike21 hydrodynamic model for a research area; step 2, calibrating the Mike21 hydrodynamic model according to the actually measured water level data of the research area; and step 3, respectively establishing a Mike21 substance transmission model and a Mike21 particle tracking model for the research area, and coupling the Mike21 substance transmission model and the Mike21 particle tracking model with the Mike21 hydrodynamic model calibrated in the step 2 to obtain a coupling model. According to the method for establishing the coupling model for simulating the coastal seawater exchange law, Mike21 software can be fully utilized to efficiently simulate the coastal sea area water exchange law.

The invention belongs to the field of building material manufacturing methods and relates to a novel method utilizing sea beach sludge to make bricks, in particular to a method adopting sludge of coastal sea beach and estuary beach. The novel method includes steps of silt excavation, cleaning, sludge slurry centrifuging, sieving, smashing, stirring for blank making, pre-drying and firing. By using the novel method, accumulation of sludge sand along the sea beach can be improved, and treatment of sludge sand of coastal mud flat in a quantity-reducing, harmless, recycling and industrializing manner is realized; the bricks made by the method can replace bricks made by using pure clay as a raw material, desilting is realized, and damage to land is reduced, so that ocean environment is protected and land is protected. Sludge bricks as a product have objective economic benefit.

The invention provides a seawater desalination ship, which comprises a ship body and a filtering system arranged on the ship body, wherein precipitation cabins in the ship body are used for precipitation treatment of seawater, and are symmetrically arranged at the two ends of the ship body, clear water cabins are used for primary filtration treatment of seawater and are symmetrically arranged on the two sides of the ship body, each clear water cabin is correspondingly communicated with one precipitation cabin, a filtering cabin is arranged in the middle of the ship body, two sets of filteringsystems are arranged in the filtering cabin, and a fresh water cabin is arranged below the filtering cabin to store fresh water obtained by multi-stage filtering treatment of the filtering system. According to the invention, the seawater desalination ship is short in construction period, low in construction cost and convenient to move, and can directly take water from seabed, wherein 20000-150000tons of fresh water treatment capacity every day can meet fresh water supply among coastal areas, coastal areas and island groups; and precipitation cabins and clear water cabins are symmetrically arranged, and two sets of filtering systems are respectively used for independently carrying out seawater filtering treatment operation, so that the loading and ballasting stability of the ship body canbe ensured, and the overall stability of the seawater desalination ship is ensured.

The invention relates to the field of overwater mechanical devices, in particular to a device for generating secondary waves in an experimental tank by means of coastal sea beating energy in the open seas without consuming energy and discloses a wave generation device free of consuming the energy. The device comprises a wave leading channel (1) and a wave experimental tank (2), wherein waves are led in through the wave leading channel (1), the wave experimental tank (2) is formed through the waves led in through the wave leading channel (1), a wave generation pendulum (3) capable of generating artificial waves is arranged in the wave leading channel (1), the bottom of the wave generation pendulum (3) is provided with a swinging shaft (6), the wave generation pendulum (3) is arranged on the swinging shaft (6) in a sleeved mode, and the wave generation pendulum (3) is tightly attached to the swinging shaft (6) so as to swing left and right to generate the artificial waves. According to the wave generation device, the aim that wave generation experiments can be carried out without building large laboratories is achieved, due to the design of the counter-weight-adjustable wave generation pendulum, the counter weight of the wave generation pendulum can be adjusted at will so that the inherent frequency can be changed, and accordingly waves of different frequencies and amplitudes can be made according to needs.

The invention provides a floating box cultivation body capable of planting crops in a coastal sea area. The floating box cultivation body comprises cover plates, a floating box, fixing ropes and anchor blocks, each cover plate is trapezoidal, an outside tread of each cover plate is provided with a branched ventilation hole, two cultivation holes in left-right symmetry are formed in the top face ofeach cover plate, two branched air pipes are fixedly connected inside each cover plate, a main air pipe is fixedly connected between the branched air pipes, main ventilation holes are formed in two ends of each cover plate, covers are movably connected above the main ventilation holes, the main air pipes are fixedly connected with the main ventilation holes, ventilation small holes are formed inthe surface of each of the main air pipes and the branched air pipes, and each cover plate is movably connected with the floating box through a clamping groove. Clay can be put into the floating box cultivation body for crop planting, the floating box is designed to float on the surface of a sea, the fixing ropes and anchors enable the whole floating box cultivation body to be fixed in a range relatively fixed on the surface of the sea, and the problem that island residents are short of vegetables is solved through the floating box cultivation body.

The invention belongs to the field of aquaculture, and particularly relates to a cultivation method for tripnenstes gratilla larvae. Incubation equipment is manually installed, and incubation conditions are controlled, and living concentrated chaetoceros is taken as delivered feed, and meanwhile, the water quality of an incubation water body is kept by delivering bacillus licheniformis and effective microorganisms (EM), so that the success rate of incubation of the tripnenstes gratilla larvae can be obviously improved, and the incubation rate can reach 0.4% or more. According to the cultivation method for tripnenstes gratilla larvae disclosed by the invention, a new superior variety is provided for development of tropical sea urchin culture in China, and development of tropical sea urchinculture industry in China can be effectively promoted; abundant cultured larvae are provided for ocean pastures of coastal sea areas in Hainan province and Sansha sea areas, and new employment post and ways are provided for fishermen to transfer jobs; and the cultivation method has very important economic value and social value.

The invention discloses a near-shore seaweed fishing device which comprises a platform, a driving assembly and a fishing assembly; the driving assembly comprises a plurality of driving wheels rotationally arranged at the two sides of the platform; each driving wheel comprises a wheel body rotationally connected with the platform and a propeller fixed to the side, away from the platform, of the wheel body; and the fishing assembly comprises a gauze element, a suspension rod connected with the top end of the gauze element, a balance weight rod connected with the bottom end of the gauze element, a first winding part fixed to the middle of the platform, connected with the suspension rod and used for winding and unwinding the suspension rod, and a second winding part fixed to the tail of the platform, connected with the balance weight rod and used for winding and unwinding the balance weight rod. According to the near-shore seaweed fishing device, coastal seaweed can be removed, and the protection of a coastal sea environment is facilitated.

The invention discloses a Chinese coastal sea area depth reference frame point layout method, and belongs to the field of depth reference precision control research. According to the method, on the basis of a nautical chart depth datum plane model, the nonlinear change degree of the nautical chart depth datum plane in different directions is researched by using a second derivative, and the tolerance requirement of the nautical chart depth datum plane model error and a mathematical model of the datum plane maximum interpolable distance in different directions are deduced. According to the method, a tolerance index of datum plane interpolation is given by combining a tolerance index of water depth measurement in Sea Channel Measurement Standards (GB12327-1998), an effective range of datum plane linear interpolation is determined, graphic expression of the effective range is realized, on one hand, research results can provide a theoretical basis for layout of frame points in coastal sea areas in China, and on the other hand, the research results can provide a theoretical basis for layout of frame points in coastal sea areas in China; a means is provided for rationality evaluation of frame point positions; on the other hand, arrangement of a tide station can be assisted, and water level reduction precision is improved.

The embodiment of the invention discloses a method and a system for intelligently detecting wave height and wind speed from a coastal sea wave monitoring video, the method can extract wave height and wind speed elements from minute-level video data, the length of the video data input by a model is very short, and the use of other basic functions (such as patrol and view scaling) of camera equipment is hardly influenced. The average absolute error between a wave height element detection value and a measured value is smaller than 0.5 m, the absolute error between a wind speed detection value and the measured value is smaller than 3 m/s, and wave height and wind speed information with high precision can be detected only by inputting very short video data.

The invention provides a method for restoring the ecological environment of a seawater pumped storage power station, which is characterized by comprising the following steps: (1) preliminary screening: investigating vegetation of a coastal island and/or a sand bank protection forest sample plot, and then performing preliminary screening according to an investigation result, wherein the preliminarily screened salt-tolerant plants need to comprise arbor plants, shrub plants and herbaceous plants; (2) secondary screening: planting all salt-tolerant plants obtained through preliminary screening, carrying out a salt mist stress test, and carrying out secondary screening to obtain arbor plants, shrub plants and herbaceous plants which finally need to be planted; and (3) planting: carrying out mixed and graded planting on the screened arbor plants, shrub plants and herbaceous plants to realize the restoration of the ecological environment of the seawater pumped storage power station.

The invention discloses a fabricated FRP-sea sand concrete sound insulation and noise reduction wallboard. The wallboard comprises FRP grids, FRP ribs, a high-ductility fiber reinforced sea sand cement-based composite material, sea sand concrete, sound absorption cotton and connecting pieces; a wallboard main body is composed of a high-ductility fiber reinforced sea sand cement-based composite material layer and an internal sound insulation and noise reduction layer, wherein the FRP grids and the vertical and horizontal FRP ribs are planted in the two sides of the high-ductility fiber reinforced sea sand cement-based composite material layer; and the vertical and horizontal FRP bars on the two sides are connected through the connecting pieces at part of crossed joints. The fabricated sound insulation and noise reduction wallboard has the characteristics of easiness in standardization of structural form, convenience in transportation, construction and installation, sound insulation, noise reduction, corrosion resistance, high lateral stiffness, high flexural rigidity and the like, has good adaptability in severe environments such as coastal sea, and is suitable for popularization and application.