70 results about "Rip tide" patented technology

A tidal stream or ocean current turbine is connected to a submerged buoy that is tethered to the seabed to create a virtual seabed level that is higher than the actual seabed. The buoy is constrained by tensioned tethers or catenary mooring lines such that it is approximately geofixed at a prescribed depth of immersion and orientation. The turbine device is attached to the submerged buoy by a connector strut that allows the device to swivel about the geofixed location. The strut to buoy connection incorporates a bearing system that allows the strut freedom of rotation in the horizontal and vertical planes about the geofixed buoy. The reserve of buoyancy in the submerged buoy acts to resist the vertical component of the mooring force such that the drag force on the turbine device cannot lead the device to submerge excessively or cause the downstream tension tether mooring lines to go slack.

The invention provides a variable torque wave energy hydraulic power generation device, which consists of a plurality of pieces of equipment such as a pile body, a wave energy power generator room, a plurality of groups of crank rocker devices, a plurality of groups of floater moment arms, a plurality of groups of oscillating floaters, a generator room pushrod, a wireless communication device and a wave instrument. The wave instrument can be used for measuring the real-time wave height and tide level data of waves, and driving the floater moment arms and the generator room pushrod to be elongated or shortened according to preset rules, thereby changing the lengths of the floater moment arms and the floating position of the wave energy power generator room and actively adjusting the magnitude of wave energy input torque. The device can be used for obtaining more stable wave energy, and a wave energy collection device and an offshore wind energy collection device are fused into a whole to collect both the wave energy of the oscillating floaters and offshore wind energy for power generation, so that the utilization efficiency of energy resources is favorably improved, and the power generation cost is lowered.

The invention discloses a combined wave power generation device provided with oscillating buoys as well as a measurement and control system of the device. The power generation device and the measurement and control system are included, multiple groups of hiding platforms can be arranged according to the installed capacity, and multiple oscillating buoys are mounted on each hiding platform. On the basis of a traditional wave power generation device provided with oscillating buoys, a hydraulic energy storage system, a tide level adaptation system and a wave detection system are designed. The hydraulic energy storage system controls energy storage and energy release of energy accumulators to drive a power generator to generate power according to the upper limit and the lower limit of energy storage pressure of an energy accumulator group in combination with real-time wave information. According to the device, multi-point energy absorption replaces traditional single-point energy absorption, immediately captured wave energy can be maximized, the measurement and control system can cooperate with the combined wave power generation device provided with the oscillating buoys, multiple defects of shorter wave period, small wave height and low energy flux density of national offshore wave energy resources can be effectively overcome, and maximum-efficiency conversion of wave energy to power and maximum-efficiency utilization of the power are realized.

A small or medium size hydraulic generation plant with a steel shell is placed on the sea floor of the stronger tidal / ocean current site. It is added an air hose to get the fresh air, and an entrance for the technician entering, at out side, the plant is connected with three tidal speed meters, a sea floor cable, an inland remote supervision and control center and a group of tailrace pipe of which the branch pipes of which the branch pipes are connected with a tidal / ocean turbine pump farm.In operation, the plant bring in the sea floor water to generate electricity on large scale. The electricity is transmitted to land by the sea floor cable, while the tailrace firstly drops to the tailrace pond and continually flows thru the tailrace pipes to the turbine pump farm, at last, it is pumped out to the sea floor by the tidal / ocean turbine pump farm.

There is provided with a complex ocean power system combining ocean current power generation for generating electricity by forming a plurality of ocean current generators in front and rear of sluice structures of tidal power dams and sluice power generation for generating electricity by forming a plurality of ocean current generators in sluice conduits of the sluice structures, comprising: constructing barrages, which cross over the sea, to make up a lake; installing sluice structures of tidal power dams between the barrages 10 to generate electricity by changing a potential energy difference between seawaters caused by tides and ebbs to kinetic energy; installing ocean current generators in front and rear of the sluice structures and in the sluice conduits of the sluice structures to generate electricity by rotating turbine blades using the flow of the incoming seawater from a sea side into a lake side during flood tide and the flow of the seawater discharged from the lake side into the sea side during ebb tide; and installing sluice gates in the sluice structures 102, 210 to close and open the sluice conduits during flood tide and ebb tide.

The invention discloses a forestation technology using mangrove forest plant to convert a pond to forestry. The method comprises the steps of building planting ridges and water channels in a waste pond, arranging a water gate, controlling water in the water channels to communicate with outside by a gate in the water gate, wherein multiple planting ridges can be arranged according to the size of the pond; opening the gate of the water gate to enable water in the pond to change along with external water, and determining the high water mark in the pond, wherein the heights of the planting ridges are selected to be lower than the high water mark by 10cm, the bottom areas of the planting ridges are larger than the opening areas and vertical section shapes of the planting ridges are a trapezoid with a narrow upper part and a wide lower part; planting tree seeds into the planting ridges, encircling the planting ridges with a gauze element of about 20 meshes, opening the gate to communicate water in the pond with an outside water body and enable the water in the pond to change along with the tide change of the outside water body, inspecting in each month and timely replacing dead individuals. The method has the beneficial effect the tree seed survival rate of the mangrove forest is high by turning the pond to forestry.

The invention provides a method for creating ecological wetland to promote water body exchange of an encircling type harbor basin or harbor. A water storage water area is established nearby the harborbasin and communicates with seawater, a gate is arranged on the side, and a water body channel is arranged between the water storage water area and the harbor basin or harbor. During flood tide, thegate is opened, and the seawater flows into the water storage water area. During falling tide, the gate is closed, the seawater flows into the harbor basin or harbor from the water storage water areato form harbor penetrating flow, and the polluted water body in the harbor basin or harbor is driven to flow out of the harbor basin or harbor. The natural power of tide fluctuation is utilized, wateris stored in the water storage water area during flood tide, the water body in the water storage water area flows into the harbor basin or harbor through the water body channel during falling tide, the harbor (bay) penetrating flow is formed, and the key technical problem about the water source water volume of the harbor (bay) penetrating flow is effectively and economically solved. Meanwhile, the method serves as an important measure for ocean resource sustainable development and utilization and ocean environment protection, the water storage water area can be established into the ecologicalwetland environment or created into the hydrophilic space.

The invention discloses a tide and river power station, which is a novel hydroelectric power stations and is suitable for hydraulic power station devices and facilities which generate electricity through the kinetic energy of tide produced by strong swellings and falling tides in shallow sea waters and hydraulic power station devices and facilities which generate electricity through the kinetic energy of water in great rivers. The tide and river power station disclosed by the invention not only breaks through the current situation that the human being cannot generate electricity through the energies of tide and river water, but also can repeatedly utilize the water body in the same unit for continuous N times so that the human being can efficiently generate electricity through the energies of the tide and the river water. The tide and river power station is composed of facilities and devices such as a drainage dam, a flow stabilization canal, a wave blocking dam, a generator room, a generator, a waterwheel power machine, and the like.

A coastal alkali land winter wheat planting automatic tide irrigation system belongs to the technical field of bioscience. The coastal alkali land winter wheat planting automatic tide irrigation system is composed of a tidal energy water carrier 1, a water inlet pipe 30, a salt filter 58, a water inlet core pipe 40, a water supply core 48, winter wheat seedlings 49, a water supply pipe 50, planting pits 51, winter wheat soil 52, an isolating plastic layer 53, a water collecting cylinder 54, a water storage tank 55, a salt filter water pipe 56 and fixing traction cables 57 and is characterized in that, after a floating ball of the tidal energy water carrier 1 is lifted up by sea waves, a water absorbing piston 14 moves up, then a pull-down ball 10 pulls the water absorbing piston 15 down by gravity to absorb sea water into a water absorbing cylinder 16; the salt filter 58 is used for filtering salt out of the sea water; the water supply core 48 ensures that water can be automatically supplied for the winter wheat soil 52. The coastal alkali land winter wheat planting automatic tide irrigation system is simple in manufacturing, high in operability, low in cost and significant in effects.

The invention provides a tidal river sewage treatment and aquiculture integrated system which comprises aquaticplant floating blanket zones and a freshwater mussel culture zone arranged in the tidal river, wherein the freshwater mussel culture zone is arranged in the middle of the tidal river; and the aquaticplant floating blanket zones are arranged at two sides of the freshwater mussel culture zone. The aquaticplant floating blanket zones are divided into an emergent aquatic plant zone, a floating plant zone and a submerged plant zone according to the decontamination capability. Since emergent aquatic plants, floating plants and submerged plants are sequentially cultured in a riverway disclosed by the invention, the riverway is progressively purified layer by layer. In addition, different aquaticplants are subjected to reasonable companion planting and have purification capability all year round. The mussels in the freshwater mussel culture zone in the invention not only can be used for filtering phytoplankton and reducing algal bloom, but also can be used for ensuring that no heavy metal substances exist in meat of the mussels.

The invention relates to devices and facilities for artificially eliminating waves, in particular to a suspended wave elimination dike applicable to deep seas and oceans. The suspended wave elimination dike comprises a wave elimination dike body, triangular wave eliminators, anti-sinking control floats, fixing cable rings, a balance stabilizer, a gravity keel and a dead weight adjusting chamber. By the suspended wave elimination dike, human beings can construct artificial islands in the deep seas and oceans and settle down permanently in the ocean, and deepwater tide current power stations and the like using tide current for power generation can be built to make it possible for human beings to reasonably, scientifically and quickly make use of the oceans and exploit the oceans.

The invention discloses lake water wave power generation equipment, which comprises a working device and a power generation device, wherein the working device is arranged on the lake or river bank; the power generation device is connected with the working device; the working device comprises a limiting sleeve which is fixed on the bank; a floating pole is arranged in the limiting sleeve; the power generation device comprises a cutting coil and a magnet device; a rotating shaft is arranged on the cutting coil and can be fixedly arranged oppositely to the floating pole; a gear is arranged on the rotating shaft; and a rack matched with the gear is arranged on the floating pole. Compared with the prior art, according to the lake water wave power generation equipment disclosed by the invention, the cutting coil is driven to rotate and cut a magnetic induction line for carrying out power generation through floating or sinking of the floating pole under the action of water waves, so that the power generation mode is more environment-friendly and suitable for residents adjacent to the sea or the lake; and the damages to shore buildings caused by tides can also be reduced by large-scale construction.

The invention discloses a method for improving ship rank of a tidal bank-line wharf and a semi-submerged harbor pool. The method is that: an openable and closable harbor pool similar to a ship lock is designed and constructed at the front edge of the tidal bank-line wharf and is combined with the wharf; after a cargo ship drives into a berth in the harbor pool through a gate of the harbor pool at high tide level, the ship lock is closed, the wharf begins to work; during the ebb-tide, the water level of the harbor pool is decreased to the designed water level of the harbor pool through a water overflow and discharge channel, then a harbor pool water supply system remains the water depth of the harbor pool; when the loading or unloading of the cargo ship is finished, the gate of the harbor pool is opened when the high tide level appears to ensure that the cargo ship drives away the operation harbor pool; the method of the invention adopts a semi-submerged harbor pool which consists of an enclosed pool wall, a harbor pool gate for ship in / out, a water overflow and discharge channel of the harbor pool, a harbor pool water supply system and a harbor pool operation control system; at least one pool wall is the front edge of the wharf, and at least one side is the gate of the harbor pool. The invention has the advantages of: simple and reliable method, small investment and quick effect, can effectively take advantage of the prior tidal wharf to retrofit or construct, can effectively improve the ship rank of the tidal bank-line wharf, has high resource utilization rate and so on.

Two apparatuses are disclosed for providing a dynamically varying water surge in a salt-water reef aquarium. The first apparatus is a micro-controller based variable frequency reef surge drive 100 for an AC permanent magnet synchronous motor (PMSM) submersible aquarium pump. Drive 100 comprises voltage conversion circuitry 105, xmicro-controller 110, reef-surge generation program 115, variable frequency drive 118, mode switch 130 and tidal cycle switch 135. Three user-selectable modes of operation are provided: a random frequency mode, a fixed-program mode and a tidal mode. A second apparatus comprises a novel submersible AC PMSM pump with dual impeller assemblies and dual input and output chambers for supporting forward and reverse flow through an AC PMSM pump.

The invention relates to a tidal tray seedling culture water level dynamic management device which is characterized by comprising a seedling culture rack, a plurality of horizontally arranged tidal trays arranged on the seedling culture rack, and a nutrient solution circulation device, wherein the nutrient solution circulation device comprises a water inlet assembly used for providing a nutrient solution and water for the tidal trays, and a collecting assembly used for recovering the nutrient solution and water in the tidal trays; a drain hole connected with the collecting assembly is formed in the bottom of each tidal tray; filter parts used for controlling the water level in the tidal trays are respectively arranged on the drain holes. The tidal tray seedling culture water level dynamic management device provided by the invention is low in manufacturing cost, high in efficiency and easy to popularize, and can be used for carrying out dynamic control on the water level in the tidal trays.

The invention discloses a movable ocean tide fall pumping device. The movable ocean tide fall pumping device comprises a large buoyancy tank, flexible ropes and an ocean tide fall pump which conveys seawater to the position above the sea level by the utilization of tide fall, wherein the upper ends of the flexible ropes are connected with the large buoyancy tank; the lower ends of the flexible ropes are provided with seabed connection pieces or weights sunk in the seabed; the ocean tide fall pump is placed on the large buoyancy tank and comprises a fixed water tank, a floating body assembly capable of shifting up and down and a water pipe; the floating body assembly is provided with a hollow buoy, the cavity of the buoy is filled with seawater increasing the weight of the buoy when ebb tide occurs, and the lower portion of the floating body assembly and the upper portion of the fixed water tank are sealed when the ebb tide occurs. By the adoption of the structure, the movable ocean tide fall pumping device can convey the seawater to the position higher than the sea level without external force, can be adaptable to ocean geographical environment, and improves the utilization rate of tidal energy.

The invention relates to a method for restoring mangroves on a beach in a shrimp pond drain outlet area. The method comprises the steps as follows: (1) improving the pH value of soil of the beach in the shrimp pond drain outlet area and relieving the acidification degree of the soil by tide scouring; (2) raising the shrimp pond drain outlet area to form a slope beach face with gradually increasedbeach face elevation in the tide rising direction; (3) planting the mangroves on the slope beach face and applying phosphate fertilizer to rhizosphere soil of the mangroves. By means of the method, the bad soil condition of the shrimp pond drain outlet area can be improved, the degeneration process of the mangroves can be quickly retarded and controlled, the problem that the mangroves cannot survive or grow slowly in a long time in the area is solved, and the mangrove resources is protected and restored.

The invention discloses an ocean tide fall water pumping accumulation energy generating system capable of being installed in a moving way. The ocean tide fall water pumping accumulation energy generating system comprises a maritime reservoir, a hydroelectric generator, a plurality of bearing posts higher than the sea level and a plurality of movable ocean tide water pumping units for irrigating water for the maritime reservoir, wherein the maritime reservoir is positioned at the top ends of the bearing posts, a large-scale floating tank and a flexible cable are arranged under the bearing posts, each movable ocean tide water pumping unit comprises a floating block, a floating block connecting flexible cable and an ocean tide fall water pumper, and the ocean tide fall water pumpers are positioned above the floating blocks. The ocean tide fall water pumping accumulation energy generating system capable of being installed in the moving way adopts the structure that the maritime reservoir is higher the sea level, and the movable ocean tide water pumping units are used for irrigating water for the maritime reservoir, and has the advantages that the higher the position of the maritime reservoir is, the greater the potential energy of the maritime reservoir is, the movable ocean tide water pumping units are used for irrigating seawater into the reservoir higher than the sea level through tide falls, and the electricity can be continuously and stably generated.

This invention discloses a simple and convenient method of floods control and with great discharge capacity. This invention is a method of speeding up the river floods water discharge ability into the sea by means of the natural tidal range. This is done by the following technical proposals. To set up the PTCCG between the tidal current limit of the estuary and the coast tangent or narrower part of the estuary; the said PTCCG should be built across the river from the banks theoretically. When there is a danger of flood during the floods seasons, we can close the PTCCG and prevent the tidal current from entering into the inner river. When the tide ebbs, we can re-open the PTCCG and discharge the freshwater withheld into the sea. The PTCCG is normally open when it is not used. This invention is applicable to all tidal estuaries, which are affected by the astronomical tide range. It makes use of the natural tidal range to control floods in the upper stream of the river, which has a great floods control capacity, and accelerates the speed of floods discharging into the sea.

The invention discloses a tidal waterway gate pump dispatching method and an ecological restoration for a tidal waterway. The tidal waterway gate pump dispatching method comprises the steps that in the waterway dry season, a gate of a river mouth is closed; in the waterway flood period, when the tide is located at the low tide level, the gate of the river mouth is opened, flood is discharged into the sea, and water flows into the sea in one direction; and in the waterway flood period, when the tide is located at the high tide level, the gate of the river mouth is closed, the flood is discharged into the sea through a pump station, and the water flows into the sea in one direction. According to the tidal waterway gate pump dispatching method, the water gate, the pump station and other water conservancy facilities in the river network area are utilized, the water conservancy facilities are combined with regulation and control measures, reciprocating flow is changed into one-way flow, it is guaranteed that the upstream water body of the waterway is not jacked by the tide, and the discharging speed is increased; meanwhile, the dilution and self-cleaning functions of the water body are improved, the virtuous cycle is formed, the problem that the tidal river network is subjected to dual actions of tide and runoff, and pollutants flow in the river network area in a reciprocating manner is solved, and meanwhile the effect of tidal river section ecological restoration is improved.

The invention discloses a sea tidal fall water pumping device comprising a fixing water cylinder, a float assembly capable of vertically moving and a water pipe; the float assembly is positioned above the fixing water cylinder, and is provided with a hollow floatation box; during ebb tide, the hollow cavity of the floatation box has sea water for increasing the weight of the floatation box; during ebb tide, the lower part of the float assembly is sealed with the upper part of the fixing water cylinder; one end of the water pipe is communicated with the lower part of the fixing water cylinder; and the other end of the water pipe extends out of sea level. The sea tidal fall water pumping device adopting such a structure can convey sea water to the position higher than the sea level without adopting external power, can overcome the multiple defects of the tidal power generation in the prior art, can change the low-water head large-flow power generation mode in the prior art, and can improve the environment of construction and foundation processing of the existing power generation station and the slit-prevention engineering project, thus reducing power generation investment, reducing power generation operation cost and achieving cleanliness and environment friendliness.

A system substitutes digitized camera images for human vision, in determining the presence or absence of rip tides among sea water wave patterns at a public swimming beach. Computer analysis of these images involves image pre-filtering that enhances the telltale signs of rip tides, before the digital data is processed for classification as NORMAL or RIP TIDE. The classification itself can proceed along by expert systems which mimic the manner in which a human observer performs the detection; or by building a neural network, that determines its own classification criteria for identifying rip tides.

The invention discloses a method and device for achieving unidirectional flow of a beheaded river through tide. A cutoff wall is arranged in the center of the beheaded river with the river width beingB. The initial end of the cutoff wall is B / 2 away from the beheaded river head, and the terminal end of the cutoff wall is located at the intersection of the beheaded river and a main tidal waterway.Check gats are arranged between the two sides of the terminal end of the cutoff wall and the beheaded river bank correspondingly, one of the check gates is a water inlet check gate which is opened during tide rising for controlling water flow of the main tidal waterway to flow into the beheaded river unidirectionally, and the other check gate is a water outlet check gate which is opened during tide falling for controlling water flow of the beheaded river to flow into the main tidal waterway unidirectionally. Through the cutoff wall and the two check gates, tide water power can be used, rising-falling repeated flow of the beheaded river is changed into unidirectional circular flow, refreshed water amount is proportional to the tidal range and the beheaded river water area, the water flow effect is good, the refreshed water amount is high, the water level of the beheaded water is controllable, the method and device are easy and convenient to implement, project investment is reduced, theconstruction period is short, the operation and maintenance is low, and the method and device have the application and popularization prospects.

The invention provides offshore damp-proof wind power generation equipment. The equipment comprises a power generation impeller rotating by means of the wind, an impeller rotating shaft for supportingthe power generation impeller and rotating, a power generation cabin for supporting the impeller rotating shaft and performing wind power generation, a supporting shaft and a bearing for supporting the power generation cabin and a gravity guidance supporting mechanism used for supporting a power generation device and conducting gravity guidance to prevent sea waves from shaking excessively the power generation device, and the equipment relates to the field of wind power generation. According to the offshore damp-proof wind power generation equipment, based on the analysis of the problems existing in the existing offshore wind power generation equipment, the structure that the stability of the power generation device can be enhanced by means of the sea wave power is designed, and the resonance generated by the sea waves to the equipment is weakened, so that the problems that the general offshore wind power generation equipment is prone to being affected by the wave tide to generate vibration, part parts of the equipment are easily loosened after long-term use, the equipment is easily damaged, the connection structure needs to be frequently overhauled and maintained for a long time,the workload is large, and the efficiency is low are effectively solved.

The invention discloses a marine floating ball wireless positioning signal transmitting device for marine resources, and relates to the technical field of ocean resources. According to the marine floating ball wireless positioning signal transmitting device for marine resources, a floating box is fixedly installed on the outer wall of the front side of a marine floating ball body, and a connecting base is fixedly installed at the bottom of the marine floating ball body. According to the invention, the buoyancy of the marine floating ball body is effectively and obviously increased, so that a weight increasing anchor and a metal chain can extend to the deep position of the seabed, the offset influence of waves, wind directions and water flow on the marine floating ball body is reduced, the situation that the chain is wound and knotted can be avoided, a signal collection transmitter can be well fixed, the situation that the signal collection transmitter is damaged due to collision on the sea surface is avoided, the contacted sea surface garbage can be buffered, and the influence of the acting force generated during contact on the ocean floating ball body is relieved.

The invention belongs to the field of marine traffic engineering, in particular to a strait deepwater tide channel regulated and formed by using bidirectional beam water effect. The technical scheme is achieved as follows: continuous and straight guide dikes or guaywalls are arranged basically along the main flow direction of flooding and ebbing tide in a sea area by mainly taking reciprocating flow as tidal current so as to form the strait deepwater tide channel with two ends having broadening doors and middle being a narrow channel, the channel forms an in-port water area or deepwater route, and the continuous and straight guide dikes or guaywalls at two sides of the channel form a port deepwater shoreline. The invention has the advantages that the bidirectional beam water effect leads the total sand-holding capacity of water flow not to be less than the sand content of a water body, water depth is maintained for a long time after foundations of the in-port water area and the router water area are deepened; the formed strait tide channel has straight and long shoreline, wide water area, high water area flow velocity of the channel, big water depth, small back-silting and good fluid state. The invention is used for regulating the coastal harbor shoreline water depth and the route water depth.

A system for capturing and containing waterborne floating debris in bays, harbors, rivers, and other waterways with current, tidal, or wind action flow. This system utilizes a hinged capture gate attached to any of the commercially produced oil slick containment boom systems along with an anchoring deployment that orients the debris trap perpendicular to current, prevailing wind, and tidal flow in employed waterways. The door frame / door gate invention along with the alignment and anchoring of the boom material will allow floating debris to be captured and held within the boom material for later collection and disposal or recycle. This system allows mandated oil slick boom to serve the extended purpose of collecting floating debris before it enters the open oceans and inland waterways. Thousands of yards of oil slick boom are in place that could be utilized to catch and contain waterborne trash and valuable recyclables in every coastal bay, harbor, and waterway worldwide. Removal of floating debris from the debris trap is accomplished with a small boat or skiff and a dip net. This trash may be collected for disposal by municipal agencies that both recycle, remove and (or) compost land borne waste.