4 results about "Marine current energy" patented technology

The application discloses a floating body type wave energy coupling sea current energy seawater desalination device, and relates to the technical field of comprehensive exploitation and utilization of marine energy, comprising a ring-shaped floating body, a sea current energy utilization module arranged below the ring-shaped floating body, a disc type compression module arranged at the center of the ring-shaped floating body, and a wave energy utilization module arranged above the disc type compression module; a gearbox, a booster pump and a reverse osmosis device are installed on the ring-shaped floating body. The disc type compression module, the wave energy utilization module and the sea current energy utilization module are matched to realize seawater pressurization and simultaneous capture of wave energy and sea current energy, so that the marine energy is fully utilized for seawater desalination. The water desalination device has low cost, high efficiency, energy saving and no pollution. The three modules are integrated by using the ring-shaped floating body, the device is quickly installed, the installation cost is low compared with the existing fixed pile type, and the device can be installed according to actual use requirements.

The present application relates to a kind of deep-sea small power generation device, the deep-sea small power generation device is designed for deep-sea low flow rate condition, using ultra-low speed (rotational speed is equal to and lower than 1 revolution / second level generator) horizontal axis structure disc generator realizes the conversion of ocean current energy to electric energy.Temporary generator is driven as motor by adopting reverse drive generator mode.Using the way of separating power generation part and electrical part, they are sealed respectively.Using universal shaft structure realizes automatic direction adjustment.Seawater is evenly distributed after passing through the front fairing of von Karman curve shape, then washes the paddle with two plane curvatures, rotates the rotor by bearing, cuts magnetic line and generates electricity.The present application simplifies power generation device, electromagnetic pulsating torque is very small, rotating part has no core, moment of inertia is small, especially suitable for frequently starting and braking occasions, energy conversion rate is high, power generation efficiency is high, removes the traditional sealing ring, service life is long, maintenance is simple, safe and environmentally friendly.

The embodiment of the present application provides a sea current power generation system. The sea current power generation system comprises a column group stand, a floating plate assembly and an energy conversion device. The column group stand comprises a column stand and a sliding spoiler, the sliding spoiler is arranged on the column stand and can reciprocate, one end of the floating plate assembly is hinged on the sliding spoiler and can swing in the up-down direction relative to the column stand, the energy conversion device comprises a hydraulic power generation unit, a first hydraulic component and a second hydraulic component, the first hydraulic component is connected with the sliding spoiler and can stretch and contract under the reciprocation of the sliding spoiler, and the second hydraulic component is connected with the floating plate assembly and can stretch and contract under the swing of the floating plate assembly. Therefore, the sea current power generation system according to the embodiment of the present application has the advantages of improving the power generation efficiency and power density.

The application discloses a semi-submersible wind and current energy power generation platform, which comprises a semi-submersible platform body, an upper power generation unit and a lower power generation unit, the semi-submersible platform body comprises a central column, the upper power generation unit comprises a vertical axis wind turbine, the vertical axis wind turbine is located at the top end of the central column and above a horizontal plane, and the lower power generation unit comprises an axial flow type ocean current energy generator, the axial flow type ocean current energy generator is located at the bottom end of the central column and below the horizontal plane; wherein the central column, the vertical axis wind turbine and the axial flow type ocean current energy generator have the same axis, the main shafts of the vertical axis wind turbine and the axial flow type ocean current energy generator are independent of each other, in a running state, the rotating directions of the vertical axis wind turbine and the axial flow type ocean current energy generator are opposite, so that the action lines of the gyroscopic moments generated by the vertical axis wind turbine and the axial flow type ocean current energy generator are highly coincident and have opposite directions, the interaction forces of the vertical axis wind turbine and the axial flow type ocean current energy generator are offset, the stability of the platform is improved, and the failure risk is reduced.