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KR-20260064673-A - Streamlined Floating body and Movable Plate Type Hydroelectric Power Plants

KR20260064673AKR 20260064673 AKR20260064673 AKR 20260064673AKR-20260064673-A

Abstract

The present invention relates to a power generation vessel for generating power in waters with low flow velocity, low flow rate, and low potential energy, including waters rich in tidal energy.

Inventors

  • 김준모

Assignees

  • 김준모

Dates

Publication Date
20260507
Application Date
20260420

Claims (5)

  1. A power generation vessel (00) equipped with floating hulls (01) and a connecting structure (02) configured as a power generation vessel by installing two or more floating hulls (01) having angular, semi-angular, curved, or semi-curved shapes with symmetrical or nearly symmetrical bows and sterns, and a connecting structure (02) connecting the floating hulls; movable plates (04) installed between the floating hulls (01) and above, below, front, and rear of the connecting structure (02), one side of an operator (11) attached to the movable plates (04), and the other side of the operator (11) mounted on the connecting structure (02) to rotate and operate; The floating hull of the power generation vessel (00) has a chamber for accommodating ballast water installed therein to inject or discharge ballast water, thereby adding a function to cause the power generation vessel (00) to settle on the seabed or float; The connecting structure (02) of the power generation vessel (00) accommodates a power generation device comprising one or more generators (12), a rotating shaft (13), a bevel gear (14), and a rotating rotor; Including a device for accommodating piles to restrain the 5-node motion occurring in a conventional floating body and to prevent marine turbulence from becoming a threat to power generation; A power generation vessel characterized by converting the kinetic energy of the current into rotational force of a rotor on a horizontal axis through a bevel gear (14) and a vertical rotation axis (13) to produce power using a generator (including a transmission) installed in the atmosphere.
  2. A power generation device according to claim 1, characterized in that the curved, angular, semi-curved, and semi-curved shapes of the floating hull (01) gather the direction of the incoming current to the inside of the floating hull (01), and the movable plates (04) installed on the upper, lower, left, and right sides gather the lower and upper layers of the current to the rotor housing (16) installed on the inside of the floating hull (01) and the inside of the connecting structure (02) to rotate the rotor (15).
  3. A tidal power generation device and a power generation vessel according to claim 1, wherein the power generation vessel equipped with the floating hull and power generation equipment is characterized by raising the power generation equipment from underwater to the air during movement, inspection, and maintenance, and lowering it underwater to generate power during power generation.
  4. A device according to claim 1, wherein the movable plates installed on the upper, lower, left, and right sides of the connecting structure equipped with the power generation facility rotate and move to maximize power generation as the floating hull moves up and down in accordance with tidal fluctuations or changes in water depth.
  5. A pile mooring device for a power generation vessel according to claim 1, which increases the stability, safety, and power generation efficiency of the power generation vessel by restraining the 5-node movement of the floating hull, excluding vertical displacement, with respect to the power generation vessel.

Description

Streamlined Floating body and Movable Plate Type Hydroelectric Power Plants The present invention relates to a power generation device that generates electricity using the movement of rivers and seawater. This section provides background information related to the content of the present application and does not necessarily constitute prior art. Water-based power generation devices in the ocean include tidal barrage power generation and tidal current power generation. Tidal barrage power generation requires the construction of seawalls (dams) to generate electricity using the difference in water levels , and the construction of seawalls (dams) entails the destruction of oceans, mudflats, habitats, and ecosystems. Furthermore, due to the very high initial construction costs, there are almost no countries implementing this except for Korea and France. Tidal current power generation utilizes the speed of tidal currents to generate electricity, eliminating the need for the construction of seawalls (dams). Consequently, there is no destruction of oceans, tidal flats, habitats, or ecosystems. Furthermore, due to the very low initial construction costs, almost all countries around the world, including Korea, the United States, the United Kingdom, China, and France, are implementing this technology. This invention relates to tidal current power generation. In deep oceans, the movement is primarily ocean current, and its speed is relatively low. In coastal areas, however, the tidal current generated during the tidal phenomenon—where the sea level periodically rises (high tide) and falls (low tide) about twice a day due to the gravitational pull (tidal force) of the moon and sun—exhibits a relatively high speed. Generally, tidal power generation is possible in areas where the tidal velocity is 1 m/sec or higher, but to ensure economic viability, it must be at least 2 m/sec or higher. Since economies of scale have not yet been achieved, it has not been commercialized on a large scale. In tidal power generation, the power generation device converts the horizontal flow of seawater into rotational or reciprocating motion to generate energy. Power generation devices are classified into horizontal axis, vertical axis, and movable body types based on their rotation axis. The horizontal axis system is structurally simple and stable because the turbine shaft is parallel or nearly parallel to the direction of the current. While it offers high energy efficiency and stable output, a drawback is that it is difficult to respond to changes in the direction of the current. The vertical axis system aligns the turbine shaft with the direction of the current perpendicularly, allowing for power generation regardless of changes in current direction and operation even at low current velocities. However, structurally, it requires a long rotating shaft perpendicular to the flow and pressure of the current, resulting in significantly poor durability. Furthermore, it has a fatal structural disadvantage in that the long rotating shaft must directly withstand the flow and pressure of the current. Additionally, if the ends of the long rotating shaft are not fixed, critical structural problems can arise due to the rotation of the rotor and the flow of the current. Consequently, installed as a fixed-offshore jacket structure that obstructs maritime traffic, hinders ship navigation, and increases the risk of collisions, the system has become an eyesore in the region, leading to a surge in complaints from local residents demanding its removal. The present invention aims to provide a method for generating power using the speed of tidal currents. Fig. 1 shows the existing Uldolmok Tidal Power Plant (jacket-type platform and vertical twist vane-type turbine) FIG. 2 is a perspective view of the existing Sihwa Tidal Power Plant turbine type (bulb type). Figure 3 is a conceptual diagram of a bottom-mounted cylindrical horizontal turbine generator. FIG. 4a is a plan view of the floating body type of the tidal power generation vessel of the present application. FIG. 4b is a side view of the floating body of the tidal power generation vessel of the present application. FIG. 4c is a side view of the floating body of the tidal power generation vessel of the present application during stationary and moving states. FIG. 5a is a detailed plan view of the tidal power generator floating body and connecting structure of the present application. FIG. 5b shows a simplified cross-sectional view by introducing a cutting function due to the long length of the movable plate (wing plate) of the tidal generator of the present application. FIG. 6 is a detailed cross-sectional view of the tidal power generator of the present application. FIG. 7 is a connection diagram of the generator-rotating shaft-bevel gear of the present application. FIG. 8 is a connection diagram of the generator-rotating shaft-bevel gear-rotating rotor of the present application. FIG. 9 is an installatio