103 results about "Ocean tide" patented technology

A tidal irrigation and electrical system used to harness the power of the ocean tide to generate electricity, create sustainable aquaculture, act as a CO2 sink, and generate hydrocarbons. An artificial atoll is created on the continental shelf to define a lagoon completely isolated from the surrounding ocean. As the tides rise and fall, the natural tidal action draws nutrient-rich, cold seawater into the lagoon to stimulate the growth of biolife. As the ocean tide falls, the natural tidal action draws the lagoon water out of the lagoon and through a biofilter to remove the biolife prior to discharge of the water back to the ocean.

The invention belongs to the field of energy and relates to an ocean tide energy horizontal shaft self-compensation bidirectional overall direction regulation generating set. A turbine disclosed by the invention is composed of an efficient four-blade hyperbolic airfoil, and the electricity is generated via an underwater direct-drive permanent magnet alternating-current generator. A horizontal tail vane with a symmetrical airfoil is adopted. A horizontal overturn shaft is arranged before the overall center of gravity of the generating set, and the generating set can rotate around the overturn shaft for 360 degrees. The horizontal overturn shaft is spanned on a seabed gravity bracket so that the generating set and bidirectional ocean currents are in the same direction. The positive and negative directions of the generating set are changed along the change of the tide. A gravity regulating body is installed, and a speed-up mechanism is omitted through the adoption of a direct-drive mode of the generating set, so that the problem of corrosion resistance is avoided. The sealed underwater direct-drive permanent magnet alternating-current generator has high efficiency and corrosion resistance under low rotating speeds. The ocean tide energy horizontal shaft self-compensation bidirectional overall direction regulation generating set has the characteristics of simple and reliable structure, resistance to water corrosion and damage, and the like and can continuously and stably work for a long time in the sea.

The invention relates to a marine ranch technology, and aims to provide a steel slag powder artificial fish reef material and a preparation method thereof. A raw material formula of the steel slag powder artificial fish reef material comprises the following components in percentage by mass: 15-40% of oyster shell powder, 30-60% of steel slag powder, 5-10% of fly ash, 5-10% of slag powder and 5-10%of Portland cement. According to the invention, a large amount of the steel slag powder is utilized, so the method is low in cost, simple and convenient in process and suitable for large-scale production and has popularization significance. The obtained material has the same early strength and later strength as an artificial fish reef, has 90-d strength of more than 30 MPa, and can resist the influence of sea tides, sea waves and ocean currents in long-term service. The artificial fish reef material in the invention is nearly neutral in surface alkalinity, has an oyster shell active channel for living, is rich in iron, calcium and other elements, and provides a suitable gathering living place for marine organisms.

The invention discloses a method for embankment by blasting and silt squeezing on a complex soft foundation, which is characterized by: taking advantage of the characteristics of ocean tide rising and falling, using the depth of covering water instead of a resistance line in blasting, applying most energy onto the top face of the complex soft foundation, squeezing down the complex soft foundation, adopting the combined action of blasting at a dyke head or on two sides of a dyke and other various blasting modes at the same time, continuously squeezing down jackstones by using the gravity of the jackstone dyke body under the action of explosion shock to remove the silt soft foundation under the jackstones, allowing the stone layer of the dyke body to fall onto bottom to form a sea dyke cross-section meeting design requirements, allowing two sides of the dyke body to fall onto the ground completely with certain ground width, and ensuring the stability of the dyke body; and avoiding landslip frequently occurring in on-site backfill and direct random sea dyke fill, as well as increasing embankment construction speed, reducing cost by 50 to 90 percent and achieving considerable economic benefits compared with a processing method which is to first excavate soft foundation and then fill back.

The invention relates to a vertical-axis offshore wind generator device which comprises a wind power generation component, a hydroelectric generation component, a support frame component, a rainwatertreatment room I and a rainwater treatment room II. The hydroelectric generation component is arranged at the bottom of the offshore wind generator device, and generated energy is supplemented throughwave energy of ocean tides. As the wave energy is converted into electrical energy, the shaking damage on the offshore wind generator device of the tides is greatly relieved, and therefore the service life of the wind generator is prolonged as a whole. Due to the arrangement of the rainwater treatment rooms, rainwater on the sea is collected and treated. Therefore, the rainwater on the sea is utilized, and the overall energy utilization is greatly improved.