Patents by Inventor Yukihiro Takenaka
Yukihiro Takenaka 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: 11802744Abstract: An exhaust heat recovery boiler includes: a duct casing in which exhaust gas flows; a tubular extending portion extending upward from the duct casing; a heat exchanger tube located in the duct casing; a hammering rod connected to the heat exchanger tube in the duct casing and passing through an inside of the extending portion, the hammering rod including an upper part projecting to an outside of the extending portion; and an annular sleeve attached to the upper part of the hammering rod through a packing. The extending portion includes an upper flat surface which is located at an upper end of the extending portion, realizes a seal between the upper flat surface and a lower surface of the sleeve, and is annular and flat.Type: GrantFiled: February 13, 2019Date of Patent: October 31, 2023Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Ryo Nakamura, Yukihiro Takenaka, Takuro Nozoe, Tatsuo Ino, Atsushi Yukioka, Shuji Yamamoto, Toshinori Tanaka, Hao Zhang, Wei Fang
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Publication number: 20220034609Abstract: An exhaust heat recovery boiler includes: a duct casing in which exhaust gas flows; a tubular extending portion extending upward from the duct casing; a heat exchanger tube located in the duct casing; a hammering rod connected to the heat exchanger tube in the duct casing and passing through an inside of the extending portion, the hammering rod including an upper part projecting to an outside of the extending portion; and an annular sleeve attached to the upper part of the hammering rod through a packing. The extending portion includes an upper flat surface which is located at an upper end of the extending portion, realizes a seal between the upper flat surface and a lower surface of the sleeve, and is annular and flat.Type: ApplicationFiled: February 13, 2019Publication date: February 3, 2022Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Ryo NAKAMURA, Yukihiro TAKENAKA, Takuro NOZOE, Tatsuo INO, Atsushi YUKIOKA, Shuji YAMAMOTO, Toshinori TANAKA, Hao ZHANG, Wei FANG
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Publication number: 20220034502Abstract: A heat exchanger tube block is stacked on another heat exchanger tube block in an upper-lower direction and connected to the another heat exchanger tube block. The heat exchanger tube block includes: a duct casing wherein exhaust gas containing dust flows in the upper-lower direction; a heat exchanger tube in the duct casing extends horizontally; an inlet header connects to the heat exchanger tube inlet; an outlet header connected to an outlet of the heat exchanger tube; and a vibration transmitting member transmitting vibration, applied to an upper end part of the vibration transmitting member, to the heat exchanger tube to make the dust accumulating on the heat exchanger tube fall. A lower end of the duct casing is formed horizontally. The inlet header is located higher than the lower end of the duct casing. The outlet header is located higher than the lower end of the duct casing.Type: ApplicationFiled: July 19, 2019Publication date: February 3, 2022Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Takuro NOZOE, Yukihiro TAKENAKA, Tatsuo INO, Atsushi YUKIOKA, Shuji YAMAMOTO, Toshinori TANAKA, Ryo NAKAMURA, Hao ZHANG, Wei FANG
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Patent number: 10907822Abstract: The present provides a waste heat boiler and a hammering device, a heating tube mounting structure thereof. The waste heat boiler which a boiler, heating tubes provided in the boiler and a hammering device; the boiler is provided with an exhaust gas inlet and an exhaust gas outlet; the heating tubes are in a horizontal grid tube arrangement; a surface of the heating tubes is provided with fins, and the heating tubes are connected to support assemblies in an unfixed way.Type: GrantFiled: February 6, 2016Date of Patent: February 2, 2021Assignees: ANHUI CONCH KAWASAKI ENGINEERING COMPANY LIMITED, KAWASAKI JUKOGYO KABUSHIKI KAISHA, ANHUI CONCH KAWASAKI ENERGY CONSERVATION EQUIPMENT MANUFACTURING COMPANY LIMITEDInventors: Yukihiro Takenaka, Fengwa Zhao, Chuanli Kao, Tatsuo Ino, Mihan Zhao, Takuro Nozoe, Hao Zhang, Xiaobing Wang, Ning Wang, Jieyu Xiao, Wei Fang, Dazhu Liu, Jian Zhou
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Publication number: 20180023806Abstract: The present provides a waste heat boiler and a hammering device, a heating tube mounting structure thereof. The waste heat boiler which a boiler, heating tubes provided in the boiler and a hammering device; the boiler is provided with an exhaust gas inlet and an exhaust gas outlet; the heating tubes are in a horizontal grid tube arrangement; a surface of the heating tubes is provided with fins, and the heating tubes are connected to support assemblies in an unfixed way.Type: ApplicationFiled: February 6, 2016Publication date: January 25, 2018Applicants: Anhui Conch Kawasaki Engineering Company Limited, KAWASAKI JUKOGYO KABUSHIKI KAISHA, Anhui Conch Kawasaki Energy Conservation Equipment Manufacturing Company LimitedInventors: Yukihiro TAKENAKA, Fengwa ZHAO, Chuanli KAO, Tatsuo INO, Mihan ZHAO, Takuro NOZOE, Hao ZHANG, Xiaobing WANG, Ning WANG, Jieyu XIAO, Wei FANG, Dazhu LIU, Jian ZHOU
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Patent number: 7926273Abstract: A waste heat power generation system of a cement calcination plant includes: an AQC boiler having an economizer, an evaporator and a superheater; and a PH boiler having a first evaporator and a superheater. The PH boiler, in addition to the evaporator and the superheater, has a second evaporator on a PH exhaust gas exit side, and a returned hot water from a flasher is introduced into the second evaporator via a steam drum. A hot water heated by the second evaporator is introduced into the steam drum, and a steam from the steam drum is introduced into the low-pressure stage of the steam turbine.Type: GrantFiled: September 18, 2007Date of Patent: April 19, 2011Assignee: Kawasaki Plant Systems Kabushiki KaishaInventors: Katsushi Sorita, Tatsuo Ino, Yukihiro Takenaka, Masao Shirai
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Publication number: 20100146972Abstract: In a cement burning plant waste heat power generation system, an AQC boiler comprises an economizer, an evaporator and a superheater, and a PH boiler comprises a first evaporator and a superheater. A part of hot water heated by the economizer of the AQC boiler is fed through a flasher to the low pressure stage of a stream turbine, another part is superheated by the evaporator and the superheater of the AQC boiler, and further one part is superheated by the evaporator and the superheater of the PH boiler and these high pressure steams are fed to the high pressure stage of the stream turbine. The PH boiler is provided with a second evaporator on the outlet side of PH waste gas in addition to the evaporator and the superheater, and return hot water of the flasher is introduced into the second evaporator through a steam drum. Hot water heated by the second evaporator is introduced into the steam drum and its steam is fed to the low pressure stage of the stream turbine.Type: ApplicationFiled: September 18, 2007Publication date: June 17, 2010Applicant: KAWASAKI PLANT SYSTEMS KABUSHIKI KAISHAInventors: Katsushi Sorita, Tatsuo Ino, Yukihiro Takenaka, Masao Shirai