Abrégé

The invention relates to a hydroelectric power plant, comprising an inlet (8) from an upper water and a drain (19) in a lower water as well as a turbine chamber (1), in which a turbine (9) is subjected to a flow. An underwater turbine (9) is used as a unit of a generator and a turbine in the turbine chamber (1) and is arranged on a wall surface (20) of the turbine chamber (1) at the location of the drain, wherein the housing of the underwater turbine (9) is flown around by water in the turbine chamber (1).

Classes IPC  ?

• F03B 3/18 - Aubes de statorsAubes distributrices, p. ex. réglables
• F03B 13/10 - Ensembles fonctionnels immergés comportant génératrices ou moteurs électriques

Abrégé

Disclosed is an underwater turbine comprising a waterproof casing (3) in which a generator is arranged, and a shaft (5) that connects the generator to a turbine rotor (6). The shaft (5) extends at an angle from the horizontal and projects downward out of the casing through a shaft opening (12) in such a way that water is prevented from penetrating into the casing (3) by a gas volume compressed in the casing (3). The underwater turbine further comprises a gas inlet through which the casing (3) can be filled with a gas volume. The gas inlet is formed by a gas supply line (10) which is connected to a constant-pressure gas supply, in particular ambient air, and the inlet port (20) of which is arranged in the bottom region of the casing (3), above the shaft opening (12).

Classes IPC  ?

• F03B 3/04 - "Machines" ou machines motrices du type "à réaction"Parties constitutives ou détails particuliers les concernant à écoulement à travers les rotors essentiellement axial, p. ex. turbopropulseurs
• F03B 11/00 - Parties constitutives ou détails non couverts par les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F03B 13/10 - Ensembles fonctionnels immergés comportant génératrices ou moteurs électriques

Abrégé

Disclosed is an underwater turbine comprising a casing (3) in which a generator is arranged, and a shaft (5) that connects the generator to a turbine rotor (6). The shaft (5) extends at an angle from the horizontal and projects downward out of the casing through a shaft opening (15) in such a way that water is prevented from penetrating into the casing (3) by a gas volume compressed in the casing (3). At least one insulating element is provided across at least part of the inner surface.

Classes IPC  ?

• F03B 3/04 - "Machines" ou machines motrices du type "à réaction"Parties constitutives ou détails particuliers les concernant à écoulement à travers les rotors essentiellement axial, p. ex. turbopropulseurs
• F03B 13/10 - Ensembles fonctionnels immergés comportant génératrices ou moteurs électriques

Abrégé

The invention relates to an intake gate of a hydroelectric power plant, comprising bars (8) which are horizontal to the direction of the flow of water or are arranged at a slight angle to the horizontal, or comprises bars (8) which are transverse to the flow direction of the water. The upper edges are arranged in succession horizontally to the flow direction or at a slight angle to the horizontal. According to the invention, a cleaning strip (6) is arranged transversely to the bars (8) and can be displaced in the longitudinal direction on the bars (8). Said cleaning strip (6) is driven by means of at least one hydraulic cylinder (14), by means of a path-translating device.

Classes IPC  ?

• E02B 8/02 - Vannes de dégravoiementDessableursDispositifs pour arrêter les corps flottants
• E02B 5/08 - Parties constitutives, p. ex. portes, crépines

Abrégé

The invention relates to an intake gate of a hydroelectric power plant, comprising bars (8) which are horizontal to the direction of the flow of water or are arranged at a slight angle to the horizontal. According to the invention, said intake gate comprising a cleaning strip (6) which is arranged transverse to the bars (8) and can be moved in the longitudinal direction on the bars (8). At least one combing bar (17, 19) engages by means of its teeth (18) in the intermediate area (13) of the bars (8) and the cleaning strip (6) is designed, on the side facing the flow, to deviate the flow, and comprises in particular bevels and/or rounded sections (20).

Classes IPC  ?

• E02B 8/02 - Vannes de dégravoiementDessableursDispositifs pour arrêter les corps flottants
• E02B 5/08 - Parties constitutives, p. ex. portes, crépines