Mitsubishi Hitachi Power Systems, Ltd.

Mitsubishi Power, Ltd.

Babcock-Hitachi Kabushiki Kaisha

Takahiro Marumoto

Tetsuo Shikata

Kohei Shinozaki

Naoyuki Nagafuchi

Satoshi Tadakuma

Pauli Dernjatin

Masato Ota

Tadaharu Kishibe

Masahide Umaya

Masato Kurita

Jun Kashima

Kenso Arita

Kenji Kiyama

Kazuhito Koyama

Toshihiko Mine

Toshinori Shigenaka

Hidehisa Yoshizako

Ikuo Kohtaka

Yukitaka Machida

Tetsuo Mimura

Hitoshi Wakamatsu

Tetsuo Sikata

Solar thermal power generation equipment is equipped with a wind turbine, a compressor, a heat receiver that receives sunlight to heat a compressed medium from the compressor, a turbine driven by the compressed medium heated with the heat receiver, a power generator that performs power generation by driving of the turbine, a transmission mechanism that transmits the rotation of the wind turbine to the power generator, and a tower which supports these components. The wind turbine, the compressor, the turbine, and the power generator each constitute an array apparatus. The plurality of array apparatuses are arranged in a vertical direction.

Solar thermal power generation equipment including wind turbine on the same vertically oriented shaft

Provided is a solar thermal power generation facility that includes: a compressor; a medium heating heat receiver that receives sunlight and heats a compressed medium from the compressor; a turbine that is driven by the compressed medium heated by the medium heating heat receiver; a power generator that generates electric power by driving of the turbine; and a tower that supports these components. The compressor, the turbine, and the power generator are formed as arranged devices. A plurality of the arranged devices are aligned in a vertical direction.

Solar thermal power generation facility

The time for steam generated in a low temperature heating device to reach a saturated steam temperature is reduced a low temperature heating device configured to heat supplied water by using heat of sunlight to generate steam; a steam separation device configured to separate two-phase water-steam fluid generated in the low temperature heating device into water and steam; and a high temperature heating device configured to heat the steam separated in the steam separation device by using heat of sunlight reflected by a plurality of heliostats to generate superheated steam.

Solar heat collection system and operation method thereof

Provided are a heliostat calibration, device and a heliostat calibration method that can suppress time-change-dependent control error increases and can reduce calibration frequency. The present invention is provided with: an initial position information acquisition unit that acquires initial position information for a heliostat; a theoretical value calculating unit that calculates from the heliostat initial position information and sun position information a theoretical value that is related to the orientation of the heliostat; a deviation calculation unit that, using as input an actual measured value for the orientation of the heliostat, calculates the deviation between the theoretical value and the actual measured value at least two times a day; and a coordinate calibration unit that, when the deviation exceeds a threshold value, calibrates the coordinates of the heliostat such that the deviation is at or below the threshold value.

Heliostat calibration device and heliostat calibration method

The inventive solar heat collection system reduces the risk of damage to heat transfer pipes of a high-temperature heat collection device. The low-temperature heat collection device () heats water by sunlight heat to generate steam. The steam-water separation device () separates a water-steam two-phase fluid generated in the low-temperature heat collection device into water and steam. The high-temperature heat collection device () heats the steam separated by the steam-water separation device by use of heat of sunlight reflected by a plurality of heliostats (), thereby generating superheated steam. The heliostat control device () controls angles of the plurality of heliostats so that metal temperature of the high-temperature heat collection device is maintained not to be higher than a threshold temperature set to prevent overshoot of steam temperature at an outlet of the high-temperature heat collection device.

Solar heat collection system

A deviation between an inlet-outlet temperature difference of a first superheater part and an inlet-outlet temperature difference of each of second superheater parts can be reduced so that a difference in thermal expansion between the first superheater part and the second superheater part can be reduced. It is therefore possible to avoid damage on heat transfer pipes. A solar collector for a solar heat boiler is provided with: cylindrical headers () which are connected to opposite end portions of heat transfer pipes; and a solar heat collection portion including the heat transfer pipes and membrane bars fixing the heat transfer pipes to one another; wherein: the cylindrical headers include an inlet header () into which a fluid to be heated flows, an intermediate header () which is disposed in a position opposed to the inlet header () with interposition of the heat transfer pipes, and two outlet headers () which are provided to extend on opposite end sides of the inlet header and through which the fluid from the intermediate header can be discharged to the outside; and the solar heat collection portion includes a first superheating portion () which has a group of the heat transfer pipes connected between the inlet header () and the intermediate header () so as to form a center region of the solar heat collection portion, and second superheating portions () which have groups of the heat transfer pipes connected between the intermediate header () and the two outlet headers () so as to be formed on opposite sides of the first superheating portion () respectively.

Solar collector for solar heat boiler, and tower-type solar heat boiler equipped with same

Provided is an inexpensive and simple solar power system. A solar power system according to the present invention includes: a heat collection apparatus (); a steam turbine (), a power generator (); a superheated steam supply line which supplies the steam turbine with superheated steam generated by the heat collection apparatus; a water supply line which condenses the steam expelled from the steam turbine into water and supplies the condensed water to the heat collection apparatus; a heat storage device () which has a heat storage medium; a first line which branches from the superheated steam supply line and which supplies the heat storage device with the superheated steam flowing through the superheated steam supply line; a second line which branches from the water supply line and which supplies the heat storage device with the water flowing through the water supply line; and a third line which supplies the steam turbine with superheated steam generated by the heat storage device. The heat storage device stores the heat of the superheated steam which has flowed through the first line in the heat storage medium, and heats the water which has flowed through the second line with the heat storage medium to thereby generate the superheated steam.

Solar power system

A solar heat boiler is provided which is capable of avoiding damage to heat transfer tubes without increasing facility cost and construction cost. The solar heat boiler includes: a low-temperature heating device by which water supplied from a water supply pump is heated by heat of sunlight; a steam-water separation device by which two-phase fluid of water and steam generated in the low-temperature heating device is separated into water and steam; a high-temperature heating device by which the steam separated by the steam-water separation device is heated by the heat of sunlight; and a circulation pump by which the water separated by the steam-water separation device is supplied to the low-temperature heating device.

Solar heat boiler and solar heat electric power generation plant

An oxygen combustion system includes a boiler to burn fuel using combustion gas composed of oxygen-rich gas and circulating flue gas, a dust remover disposed in a flue through which flue gas discharged from the boiler flows, a second flue leading the combustion gas to the boiler, the combustion gas being made by mixing the circulating flue gas extracted downstream of the dust remover with the oxygen-rich gas, a combustion gas heater exchanging heat between the flue gas flowing between the boiler and dust remover and the combustion gas flowing through the second flue, and a flue gas cooler disposed between the heater and the dust remover to cool the flue gas. A control unit controls at least one of a flow rate and cooling medium temperature of the flue gas cooler such that temperature of the flue gas introduced into the dust remover will be between 90&#xb0; C. and 140&#xb0; C.

Oxygen combustion system and method for operating same

To inhibit corrosion of water wall tubes of a boiler and stabilize combustion on a burner during oxygen combustion operation, a boiler combustion system includes a boiler equipped with a burner and a two-staged combustion gas input port; a flue gas supply fan extracting flue gas from a flue gas treatment system via a flue gas circulation line; a combustion gas supply line, fuel carrier gas supply line, and two-staged combustion gas supply line branched off from the flue gas circulation line downstream of the flue gas supply fan; an oxygen supply line supplying oxygen-rich gas to the combustion gas supply line and fuel carrier gas supply line; combustion air supply fans; a switching unit switching operation between the flue gas supply fan and the combustion air supply fans; and dampers regulating gas flow rates on the combustion gas supply line and the two-staged combustion gas supply line, respectively.

Growing community of inventors

Kure, Japan

Takahiro Marumoto