摘要:
An integrated pressurized pump shaft seal assembly for a rotary fluid pump is disclosed. The seal assembly may include an oil reservoir; an integrated centrifugal oil pump directly attached to and rotatable by a pump shaft and fluidly connected to receive oil from the oil reservoir; a seal chamber fluidly connected to receive pressurized oil from the centrifugal oil pump and comprising: a pump shaft bearing adapted to be lubricated by said oil, and a mechanical shaft seal surrounding the pump shaft and adapted to seal the seal chamber against ingress of a pumped fluid. The integrated pressurized pump shaft seal assembly may also use first and second mechanical shaft seals. A rotary fluid pump including a pump motor, pump shaft, pump impeller assembly and integrated pressurized pump shaft seal assembly is disclosed. A method of preventing seal failure in a rotary fluid pump is also disclosed.
摘要:
A heating and cooling system for a wind turbine (100) is provided and includes a gearbox (220), gearbox heat exchanger (222), generator (210), generator heat exchanger (212), and a cooling duct (320). The cooling duct (320) is connected to the gearbox and generator heat exchangers, and is used to transport air across both heat exchangers to cool the gearbox and generator.
摘要:
A method for utilizing landfill gas is disclosed herein. The method includes the step of collecting landfill gas. The method also includes the step of fueling a turbine engine that is at least part of a power generation system with the landfill gas to generate power. The method also includes the step of cooling one or more components of the power generation system with the landfill gas prior to the fueling step. A power generation system capable of practicing the method is also disclosed. A landfill gas utilization system capable of practicing the method is also disclosed.
摘要:
A heating system includes at least one wind turbine, one or more wind turbine components producing surplus heat, and one or more cooling systems for removal of the surplus heat from the wind turbine components. The heating system also includes a mechanism for transporting at least a part of the surplus heat to heating processes in at least one location external to the at least one wind turbine. A wind turbine or wind park as well as a method for utilizing surplus heat of one or more wind turbine components is also contemplated. Further contemplated is use of a method for utilizing surplus heat of one or more wind turbine components in at least one wind turbine.
摘要:
A wind turbine includes a wind turbine tower and a power electronic control system located within the wind turbine tower. The power electronic control system includes heat generating components. The heat generating components are directly mounted to the inner surface of the wind turbine tower dissipating the heat generated by the heat generating components directly to the inner surface of the wind turbine tower. In this way, a good thermal conducting path to the entire wind turbine tower is provided. A method for conducting heat generated in electronic equipment housed within a wind turbine tower uses the tower as a heat sink for cooling purposes.
摘要:
A system to cool the air inside a nacelle (12) of a wind turbine including the heat generating components such as the drivetrain (14), the electrical generator (16), the converter (20), and the transformer (22). The system has an upper cooling circuit (40), with a reservoir (26) disposed below the nacelle (12). The reservoir (26) has at least one pair of annular chambers (28, 30) and a lid (36) that freely rotates about its axis and about the nacelle yaw axis (38). Coolant flows from a first annular chamber to a second annular chamber through a heat exchanger (17) in the nacelle (12), thereby carrying heat from the nacelle (12) to the second annular chamber. The system also has a lower cooling circuit (42), having a coil (48) that connects the first annular chamber to the second annular chamber and being exposed to the outside of the wind turbine.
摘要:
Die Erfindung betrifft ein Verfahren zum Enteisen eines Rotorblatts (5) einer Windenergieanlage (1), wobei mittels eines Lüfters (22) ein Luftstrom (13, 14) durch das Rotorblatt (5) geführt wird, wobei der Luftstrom (13, 14) über ein Luftleitsystem (9) in einem Kreislauf geführt wird und zudem mittels einer Heizvorrichtung (21) der Luftstrom (13, 14) erwärmt wird. Das erfindungsgemäße Verfahren zeichnet sich dadurch aus, dass ein Bruchteil des im Kreislauf geführten Luftstroms (13, 14) aus dem Kreislauf entfernt wird.
摘要:
A system to cool the air inside a nacelle (12) of a wind turbine including the heat generating components such as the drivetrain (14), the electrical generator (16), the converter (20), and the transformer (22). The system has an upper cooling circuit (40), with a reservoir (26) disposed below the nacelle (12). The reservoir (26) has at least one pair of annular chambers (28, 30) and a lid (36) that freely rotates about its axis and about the nacelle yaw axis (38). Coolant flows from a first annular chamber to a second annular chamber through a heat exchanger (17) in the nacelle (12), thereby carrying heat from the nacelle (12) to the second annular chamber. The system also has a lower cooling circuit (42), having a coil (48) that connects the first annular chamber to the second annular chamber and being exposed to the outside of the wind turbine.