2 results about "Upwelling" patented technology

A large nuclear-powered ship, such as a repurposed aircraft carrier or a large cargo ship, is outfitted with a plurality of large downward-directed subsurface mixer propellers secured on its sides and / or ends. The propellers are positioned below the bottom of the ship and have blade lengths in the range of 10-60 m. They are coupled to the ship's steam turbines by drive shafts and gearing compatible with the required propeller power and rotational rates, typically 25-150 MW per mixer propeller and with blade tip speeds typically around 40 m / s. They produce a large-diameter low-velocity downward plume of surface sea waters below the ship that induces upwelling of cold nutrient-rich deep waters in areas where the cyclone genesis index is high. The downward mass-flow magnitude (typically 3-30 times the flow rate over Niagara Falls, but at only a few m / s) is on the scale needed for a small number of such ships to essentially end cyclone genesis in the Atlantic. At the same time, the induced upwelling of nutrient-rich deep waters is expected to lead to the newly mixed areas becoming highly productive fishing areas.

The utility model discloses a seawater filter device of high pressure seawater pump, including filter device main part, flange cover and fastener, the upper surface fixed mounting of filter device main part has flange cover, the upper surface of flange cover and located the edge position inlayed with fastener, the inside inlayed of filter device main part has filter core, the movable cover of filter core's surface is equipped with rotating part, the inside lower fixed mounting of filter device main part has base, the side surface fixed mounting of base has support block. The utility model discloses a seawater filter device of high pressure seawater pump, when seawater enters the inside of filter device main part, and the seawater of fast upwelling can drive no.