| 主权项 |
1. A ventilation arrangement for a wind turbine, comprising:
a manhole cover for covering a manhole of a rotor hub of the wind turbine, wherein the rotor hub is contained within the nose cone and spaced therefrom to form an internal space between an inner surface of the nose cone and an outer surface of the rotor hub, the manhole cover providing a vent opening for venting hot air from an interior space of the rotor hub into the internal space between the inner surface of the nose cone and the outer surface of the rotor hub, the hot air exiting out a rear internal space opening; a pipe extending from a forward internal space between the inner surface of the nose cone and the outer surface of the rotor hub, through the manhole cover and into the rotor hub, the pipe establishing fluid communication between the forward internal space and the interior space of the rotor hub; a fan mounted to the pipe, the fan being adapted to draw air from the forward internal space; an exhaust in fluid communication with the pipe, the exhaust located in the rotor hub and away from the manhole cover by about 50% to about 90% of a rotor hub axial length. |
