Patents by Inventor Chikayuki Nagata
Chikayuki Nagata has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8209985Abstract: Heat recovery equipment recovers heat from flue gas. The heat recovery equipment includes a power generation plant that drives a steam turbine by superheated steam produced in a boiler, and an exhaust-gas treatment line that treats flue gas output from the boiler. The exhaust-gas treatment line includes a first air preheater, a heat extractor unit, and a dry electrostatic precipitator. The power generation plant includes a condensed water line. The condensed water line includes a condenser, a condensed water heater, and a low-pressure feedwater heater. The condensed water heater heats water condensed by the condenser with the heat recovered by the heat extractor unit.Type: GrantFiled: July 22, 2009Date of Patent: July 3, 2012Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yasuhiro Takeuchi, Yoshio Nakayama, Tsuyoshi Oishi, Satoshi Nakamura, Shinji Nakamura, Tsuyoshi Dohi, Chikayuki Nagata
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Patent number: 8099959Abstract: Heat recovery equipment recovers heat from flue gas. The heat recovery equipment includes a power generation plant that drives a steam turbine by superheated steam produced in a boiler, and an exhaust-gas treatment line that treats flue gas output from the boiler. The exhaust-gas treatment line includes a first air preheater, a heat extractor unit, and a dry electrostatic precipitator. The power generation plant includes a condensed water line. The condensed water line includes a condenser, a condensed water heater, and a low-pressure feedwater heater. The condensed water heater heats water condensed by the condenser with the heat recovered by the heat extractor unit.Type: GrantFiled: July 22, 2009Date of Patent: January 24, 2012Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yasuhiro Takeuchi, Yoshio Nakayama, Tsuyoshi Oishi, Satoshi Nakamura, Shinji Nakamura, Tsuyoshi Dohi, Chikayuki Nagata
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Publication number: 20090272113Abstract: Heat recovery equipment recovers heat from flue gas. The heat recovery equipment includes a power generation plant that drives a steam turbine by superheated steam produced in a boiler, and an exhaust-gas treatment line that treats flue gas output from the boiler. The exhaust-gas treatment line includes a first air preheater, a heat extractor unit, and a dry electrostatic precipitator. The power generation plant includes a condensed water line. The condensed water line includes a condenser, a condensed water heater, and a low-pressure feedwater heater. The condensed water heater heats water condensed by the condenser with the heat recovered by the heat extractor unit.Type: ApplicationFiled: July 22, 2009Publication date: November 5, 2009Inventors: Yasuhiro Takeuchi, Yoshio Nakayama, Tsuyoshi Oishi, Satoshi Nakamura, Shinji Nakamura, Tsuyoshi Dohi, Chikayuki Nagata
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Publication number: 20090272114Abstract: Heat recovery equipment recovers heat from flue gas. The heat recovery equipment includes a power generation plant that drives a steam turbine by superheated steam produced in a boiler, and an exhaust-gas treatment line that treats flue gas output from the boiler. The exhaust-gas treatment line includes a first air preheater, a heat extractor unit, and a dry electrostatic precipitator. The power generation plant includes a condensed water line. The condensed water line includes a condenser, a condensed water heater, and a low-pressure feedwater heater. The condensed water heater heats water condensed by the condenser with the heat recovered by the heat extractor unit.Type: ApplicationFiled: July 22, 2009Publication date: November 5, 2009Inventors: Yasuhiro Takeuchi, Yoshio Nakayama, Tsuyoshi Oishi, Satoshi Nakamura, Shinji Nakamura, Tsuyoshi Dohi, Chikayuki Nagata
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Patent number: 7581395Abstract: Heat recovery equipment recovers heat from flue gas. The heat recovery equipment includes a power generation plant that drives a steam turbine by superheated steam produced in a boiler, and an exhaust-gas treatment line that treats flue gas output from the boiler. The exhaust-gas treatment line includes a first air preheater, a heat extractor unit, and a dry electrostatic precipitator. The power generation plant includes a condensed water line. The condensed water line includes a condenser, a condensed water heater, and a low-pressure feedwater heater. The condensed water heater heats water condensed by the condenser with the heat recovered by the heat extractor unit.Type: GrantFiled: November 29, 2005Date of Patent: September 1, 2009Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yasuhiro Takeuchi, Yoshio Nakayama, Tsuyoshi Oishi, Satoshi Nakamura, Shinji Nakamura, Tsuyoshi Dohi, Chikayuki Nagata
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Patent number: 7316735Abstract: An apparatus, which collects particulate matter contained in a gas flowing through a flow path formed in a cylindrical shape having an outer surface and an inner surface, includes: an outer shell that forms the outer surface of the flow path; a ground electrode that forms the inner surface of the flow path; a filter layer that is arranged between the outer shell and the ground electrode; and a discharge electrode that generates, when a voltage is applied, an ion wind inducing a secondary flow toward the ground electrode in a direction transverse to the flow path. The secondary flow passes through the ground electrode and the filter layer having a predetermined aperture ratio.Type: GrantFiled: August 26, 2004Date of Patent: January 8, 2008Assignee: Mitsusbishi Heavy Industries, Ltd.Inventors: Kazutaka Tomimatsu, Chikayuki Nagata, Morio Kagami, Yasutoshi Ueda
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Publication number: 20060278082Abstract: In a dust collecting apparatus, a flow path (8) through which a gas containing particulate matter flows is formed by arranging a ground electrode (5) in an outer shell (2), a dust-collecting filter layer (6) is arranged adjacent to one side of the ground electrode (5), and a plurality of discharge units (4) of a discharge electrode, to which a voltage is applied to generate an ion wind inducing and forming a secondary flow with respect to the gas, is arranged on the other side of the ground electrode (5), with tips (4a) thereof being away from each other in a direction transverse to the flow path (8).Type: ApplicationFiled: August 26, 2004Publication date: December 14, 2006Inventors: Kazutaka Tomimatsu, Chikayuki Nagata, Morio Kagami, Yasutoshi Ueda
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Publication number: 20060144043Abstract: Heat recovery equipment recovers heat from flue gas. The heat recovery equipment includes a power generation plant that drives a steam turbine by superheated steam produced in a boiler, and an exhaust-gas treatment line that treats flue gas output from the boiler. The exhaust-gas treatment line includes a first air preheater, a heat extractor unit, and a dry electrostatic precipitator. The power generation plant includes a condensed water line. The condensed water line includes a condenser, a condensed water heater, and a low-pressure feedwater heater. The condensed water heater heats water condensed by the condenser with the heat recovered by the heat extractor unit.Type: ApplicationFiled: November 29, 2005Publication date: July 6, 2006Inventors: Yasuhiro Takeuchi, Yoshio Nakayama, Tsuyoshi Oishi, Satoshi Nakamura, Shinji Nakamura, Tsuyoshi Dohi, Chikayuki Nagata