Mitsubishi Heavy Industries Limited

Shigeto Hirai

Shinsuke Sato

Yasushi Okano

Yutaka Tanaka

Tatsuo Ishiguro

Takeshi Matsuo

Takashi Nakahara

Taisuke Nakamura

Hideyuki Sakata

Takafumi Ogino

Akihiro Toda

Taiki Asahara

Masamichi Iino

Akira Kirita

Chuuhachi Gotou

Takanori Okazaki

Toshihiro Sato

Tomohiro Numajiri

Yoshiyuki Hayashi

Kai Karikomi

Setsuo Tokunaga

A flow damper including a cylindrical vortex chamber, a small flow-rate pipe connected to a peripheral plate of the vortex chamber along a tangential direction, a large flow-rate pipe connected to the peripheral plate with a predetermined angle with respect to the small flow-rate pipe, an outlet pipe connected to an outlet formed in a central part of the vortex chamber, and a pressure equalization pipe with respective ends being connected to the peripheral plate on opposite sides of the outlet and at positions closer to a connection portion between the small flow-rate pipe and the large flow-rate pipe than positions facing each other, putting the outlet therebetween. The pressure equalization pipe is arranged with at least a part thereof is located at a higher position than a top plate of the vortex chamber, and an outgassing hole is provided at an uppermost part of the pressure equalization pipe.

Flow damper, pressure-accumulation and water-injection apparatus, and nuclear installation

To include a cylindrical vortex chamber, a small flow-rate pipeconnected to a peripheral plateC of the vortex chamberalong a tangential direction thereof, a large flow-rate pipeconnected to the peripheral plateC with a predetermined angle with respect to the small flow-rate pipe, an outlet pipe connected to an outletformed in a central part of the vortex chamber, and a straightening platethat is arranged in a part between the outletand the peripheral plateC of the vortex chamber, and when jets flow into the vortex chamberfrom the small flow-rate pipeand the large flow-rate pipe, straightens impinging jets from the small flow-rate pipeand from the large flow-rate pipehaving flowed into the vortex chambertoward the outlet

A wind turbine generating apparatus includes a rotor head that rotates upon receiving outside wind on a wind turbine blade, a generator that generates electricity, and a nacelle interior air passage through which outside air flows isolatedly from an interior space of the nacelle.

Wind turbine generating apparatus

An object is to suppress reduction of energy production as much as possible while ensuring an expected lifetime. There is provided a device of adjusting a curtailment strategy for a wind turbine, the device including: a fatigue equivalent load calculation unit that calculates a fatigue equivalent load for evaluating a fatigue damage of the wind turbine in a predetermined time period by using load data of the wind turbine; and a setting value update unit that compares the fatigue equivalent load with a reference load determined by an expected lifetime of the wind turbine, and, when a difference between the fatigue equivalent load and the reference load exceeds a predetermined threshold value, updates the condition setting value for the curtailment that is currently employed according to the difference.

Device and method of adjusting curtailment strategy for wind turbine, and program

Provided is a wind turbine generator in which the intake air temperature of an air-cooled heat exchanger disposed in a nacelle is decreased to allow efficient heat exchange. A wind turbine generator that generates electric power in such a manner that a rotor head that rotates when receiving wind power drives a generator installed inside a nacelle, the nacelle being installed at the upper end of a tower that is vertically erected on a foundation, and the wind turbine generator including a closed-circuit lubricating-oil circulation system in which lubricating oil circulates through devices installed inside the nacelle, wherein an air-cooled heat exchanger installed in the lubricating-oil circulation system to cool the lubricating oil by heat exchange with air is provided in a region separate from nacelle air.

Wind turbine generator including air-cooled heat exchanger

A wind power generating apparatus provided with heat exhausting measures for an in-rotor-head device is provided. In a wind power generating apparatus in which a rotor head that rotates upon receiving wind power on a wind turbine blade drives a generator that is installed inside a nacelle and thereby generates electric power, the nacelle is installed on an upper end portion of a tower that is erected on a foundation, and a hub control panel is installed inside the rotor head, a ventilating fan that forms a flow inside and outside of an enclosure of the hub control panel is provided in the enclosure.

Wind power generating apparatus

A wind turbine for wind power generation accommodated a heat-generating device therein is always properly cooled by accurately detecting clogging of a filter. A wind turbine accommodates a heat-generating device and includes a column disposed in an upright position on a foundation, a nacelle disposed on a top end of the column, and a rotor head supported by the nacelle so as to be rotatable about a substantially horizontal axis, and the wind turbine includes an intake which is provided in an outer surface of the wind turbine and through which outside air is taken into the wind turbine to cool the heat-generating device; an exhaust which is provided in the outer surface of the wind turbine and through which air inside the wind turbine is discharged outside the wind turbine; an impurity-removing mechanism disposed in a flow path of air from the intake to the exhaust to remove impurities contained in the outside air; and a control unit for determining the condition of the impurity-removing mechanism by comparing, as a parameter serving as a criterion for determining the condition of the impurity-removing mechanism, latest data obtained while a wind speed outside the wind turbine is substantially stable with reference value data input in advance and serving as a reference.

Wind turbine for wind power generation

In a wind turbine generating apparatus, a heat generating device is provided inside the rotor head and has a hermetically-sealed structure from outside. A rotor head cooling air passage is formed through the periphery of the heat generating device to the inside of a wind turbine blade. A cooling air introduction portion through which cooling air flows and an air outlet from which the cooling air is discharged are provided in the rotor head cooling air passage to thereby form the air outlet in the wind turbine blade.

Growing community of inventors

Tokyo, Japan

Shigeto Hirai