摘要:
Hoisting systems are provided for mounting a hub (108) on top of a tower, the hub carrying a first and a second blade (103, 104) forming a bunny ears configuration, and a third blade (105). The system comprises a crane (100) for pulling up the hub to the top of the tower, and a blade support () for supporting the third blade at a supported blade portion. The system further comprises a hub-blade coupling device configured to assist in coupling a root portion of the third blade to a coupling portion of the hub. The hub-blade coupling device comprises a hub mount structure configured to be removably fixed to the hub, a blade mount structure configured to be removably fixed to the third blade, and a connector rotatably coupling the hub mount structure and the blade mount structure. Methods are provided of mounting a hub on top of a tower by using any of said systems.
摘要:
Die Erfindung betrifft eine rotierende elektrische Maschine (10), insbesondere Hydro-Generator, mit einem Rotor, welcher ein sich in Richtung einer Maschinenachse (20) erstreckendes Rotorblechpaket (12) mit einer Rotorwicklung (15a,b) umfasst, wobei die Rotorwicklung (15a,b) an den Enden des Rotorblechpakets (12) jeweils einen Wickelkopf (15) ausbildet, der zum Abfangen von Zentrifugalkräften mittels radial durch den Wickelkopf (15) hindurchgehender Bolzen (18) an einem sich in axialer Richtung an das Rotorblechpaket (12) anschliessenden, konzentrisch innerhalb des Wickelkopfes (15) angeordneten Wickelkopf-Rim (13) befestigt ist, und wobei die Befestigung (16, 17, 18, 21) zur sicheren Aufnahme von axialen Dehnungen des Wickelkopfes (15) ausgebildet ist. Bei einer solchen Maschine wird eine einfache und sichere Befestigung dadurch erreicht, dass die Bolzen (18) am Wickelkopf-Rim (13) jeweils an einem sich in axialer Richtung ersteckenden T-Hammerprofil (17) befestigt sind, welches axial verschieblich in einer zugehörigen axialen T-Nut im Wickelkopf-Rim (13) gelagert ist.
摘要:
The present invention relates to a hydraulic installation where sediment concentration in the water flow circulating through the cited installation is monitored continuously. According to the invention, the hydraulic installation comprises a pressure-reducing device and a primary sensor: the pressure reducing device decreases the pressure and discharge of upstream water flow, comprising sediments, allowing that the primary sensor can operate continuously measuring sediment concentration from the upstream water flow. The hydraulic installation also comprises a calibrating device, providing the primary sensor with a reference value to be used for comparison matters and for establishing the content of sediment in the water flow.
摘要:
The device comprises a flexible member that is in a relaxed, substantially concave configuration before being inserted between two adjacent stator portions, and in an operating, substantially flattened configuration when inserted between two adjacent stator portions in which the flexible member is compressed by the stator portions and the winding coils. The flexible member may be in an inserting, substantially convex configuration for being inserted between the adjacent stator portions.
摘要:
The invention relates to a runner (2) for a tidal power plant, comprising a hub body (4) provided with openings (40) for receiving blades (10), individual rotating means (8) for rotating each blade with respect to the hub body, around an axis (Y10) that is perpendicular to a rotation axis (X2) of the runner. The rotating means (8) include at least one linear servomotor (14) or an electric motor (22) capable of rotating a corresponding blade (10) independently of the other blades, over an angle superior or equal to 180° around its axis (Y10).
摘要:
A wind turbine blade having a blade surface comprising a pressure side and a suction side, comprising one or more flow disturbing devices for provoking air flow separation arranged on the suction side of the blade, wherein the flow disturbing device is removable.
摘要:
The rotor assembly (10) comprises a number of rotor segments (110) forming a rotor structure (100) and a central structure (200) connected to the rotor structure (100) and at least partially arranged between at least two of the rotor segments (110), for example surrounded by the rotor structure. A wind turbine generator comprising a stator assembly (300) and said rotor assembly (10) and a wind turbine comprising such a generator are also provided.