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1. 发明授权

US09945265B2 Power generation system and method for operating power generation system 有权
公开(公告)号：US09945265B2
公开(公告)日：2018-04-17
申请号：US14439114
申请日：2013-11-05
申请人： MITSUBISHI HITACHI POWER SYSTEMS, LTD.
发明人： Yukimasa Nakamoto , Kazunori Fujita
IPC分类号： F01K23/10 , F02C7/224 , H01M8/06 , F01K7/22 , F02C6/18 , F02C6/04 , H01M8/04 , H01M8/124
CPC分类号： F01K23/10 , F01K7/22 , F01K23/101 , F02C6/04 , F02C6/18 , F02C7/224 , H01M8/04 , H01M8/06 , H01M2008/1293 , H01M2250/402 , Y02B90/12 , Y02E20/16
摘要： A power generation system having a gas turbine, a fuel cell, an exhaust air circulation line, an exhaust fuel gas supply line, a turbine, an exhaust heat recovery boiler, and at least one exhaust air heat exchanger. The turbine is equipped with a high-pressure turbine, a medium-pressure turbine, and a low-pressure turbine. The exhaust heat recovery boiler is equipped with a high-pressure steam circulation mechanism, a medium-pressure steam circulation mechanism, and a low-pressure steam circulation mechanism. The exhaust air heat exchanger exchanges heat between the steam exchanging heat with the exhaust gas in the high-pressure steam circulation mechanism or the medium-pressure steam circulation mechanism and flowing toward the turbine and the exhaust gas flowing through the exhaust air circulation line, thereby increasing the temperature of the steam and decreasing the temperature of the exhaust gas.

2. 发明授权

US09806358B2 Power generation system, and methods for starting and operating fuel cell in power generation system 有权
公开(公告)号：US09806358B2
公开(公告)日：2017-10-31
申请号：US14438235
申请日：2013-10-28
申请人： MITSUBISHI HITACHI POWER SYSTEMS, LTD.
发明人： Yukimasa Nakamoto , Kazunori Fujita
IPC分类号： H01M8/04 , H01M8/04111 , H01M8/0438 , H01M8/04746 , H01M8/0662 , H01M8/04223 , H01M8/124
CPC分类号： H01M8/04111 , H01M8/04223 , H01M8/04225 , H01M8/04302 , H01M8/04395 , H01M8/04753 , H01M8/0662 , H01M2008/1293 , H01M2250/407 , Y02E60/563
摘要： The present invention enables a fuel cell to be stably started by minimizing a lack of air in a gas turbine when starting the fuel cell. This fuel cell system comprises: a gas turbine (11) having a compressor (21) and a combustor (22); a first compressed air supply line (26) that supplies compressed air (A1), which has been compressed by the compressor, to the combustor; a solid oxide fuel cell (SOFC) (13) having an air electrode and a fuel electrode; a second compressed air supply line (31) that supplies partially compressed air (A2), which has been compressed by the compressor, to the air electrode; a blower (33) that is disposed on the second compressed air supply line, and raises the pressure of the compressed air (A2); a circulation booster line (60) connecting the upstream side and downstream side of the blower in the second compressed air supply line; a control valve (61) disposed on the circulation booster line; a control valve (63) disposed between the circulation booster line in the second compressed air supply line and the SOFC; and a control device (62) that closes the control valves and opens the control valves to start the blower when starting the SOFC.

3. 发明授权

US09777629B2 Power generation system 有权
公开(公告)号：US09777629B2
公开(公告)日：2017-10-03
申请号：US14439073
申请日：2013-10-28
申请人： MITSUBISHI HITACHI POWER SYSTEMS, LTD.
发明人： Yukimasa Nakamoto , Kazunori Fujita
IPC分类号： F02C6/04 , F01K23/10 , F02C3/00 , F02C3/30 , F02C6/00 , H01M8/04082 , F02C3/20 , F01K13/02 , F02C6/18 , H01M8/04111 , H01M8/124
CPC分类号： F02C6/04 , F01K13/02 , F01K23/10 , F02C3/20 , F02C3/30 , F02C6/00 , F02C6/18 , H01M8/04111 , H01M8/04201 , H01M2008/1293 , H01M2250/402 , Y02B90/12 , Y02E20/16
摘要： This power generation system is provided with: a gas turbine (11) having a compressor (21), a combustor (22) and a turbine (23); a first compressed air supply line (26) that supplies compressed air, which has been compressed by the compressor (21), to the combustor (22); a solid oxide fuel cell (SOFC) (13) having an air electrode and a fuel electrode; a compressed air supply device (61) capable of generating compressed air; and a second compressed air supply line (31) that supplies compressed air, which has been compressed by the compressed air supply device (61) to the SOFC (13). The fuel cell can thus be stably operated regardless of the operating state of the gas turbine.

4. 发明授权

US11519303B2 Waste heat recovery system, gas turbine plant provided with same, waste heat recovery method, and installation method for waste heat recovery system 有权
公开(公告)号：US11519303B2
公开(公告)日：2022-12-06
申请号：US16867939
申请日：2020-05-06
申请人： Mitsubishi Hitachi Power Systems, Ltd.
发明人： Hideyuki Uechi , Hideaki Sugishita , Yukimasa Nakamoto , Yuichi Oka
IPC分类号： F01K23/10 , F02C9/18 , F02C7/18 , F01K5/02 , F01K25/10
摘要： A gas turbine includes: a compressor configured to compress air; a combustor configured to combust fuel in the air compressed by the compressor so as to generate combustion gas; and a turbine configured to be driven using the combustion gas. Air coolers are configured to bleed the air from a plurality of places having different pressures in the compressor and cool the air bled from the respective places so as to generate cooling air. A waste heat recovery device is configured to recover waste heat from at least two of the air coolers.

5. 发明申请

US20150295256A1 POWER GENERATION SYSTEM, AND METHODS FOR STARTING AND OPERATING FUEL CELL IN POWER GENERATION SYSTEM 有权
标题翻译：发电系统及其在发电系统中启动和运行燃料电池的方法
公开(公告)号：US20150295256A1
公开(公告)日：2015-10-15
申请号：US14438235
申请日：2013-10-28
申请人： MITSUBISHI HITACHI POWER SYSTEMS, LTD.
发明人： Yukimasa Nakamoto , Kazunori Fujita
IPC分类号： H01M8/04
CPC分类号： H01M8/04111 , H01M8/04223 , H01M8/04225 , H01M8/04302 , H01M8/04395 , H01M8/04753 , H01M8/0662 , H01M2008/1293 , H01M2250/407 , Y02E60/563
摘要： The present invention enables a fuel cell to be stably started by minimizing a lack of air in a gas turbine when starting the fuel cell. This fuel cell system comprises: a gas turbine (11) having a compressor (21) and a combustor (22); a first compressed air supply line (26) that supplies compressed air (A1), which has been compressed by the compressor, to the combustor; a solid oxide fuel cell (SOFC) (13) having an air electrode and a fuel electrode; a second compressed air supply line (31) that supplies partially compressed air (A2), which has been compressed by the compressor, to the air electrode; a blower (33) that is disposed on the second compressed air supply line, and raises the pressure of the compressed air (A2); a circulation booster line (60) connecting the upstream side and downstream side of the blower in the second compressed air supply line; a control valve (61) disposed on the circulation booster line; a control valve (63) disposed between the circulation booster line in the second compressed air supply line and the SOFC; and a control device (62) that closes the control valves and opens the control valves to start the blower when starting the SOFC.
摘要翻译：本发明使燃料电池能够通过在启动燃料电池时最小化燃气轮机中的空气不足而稳定地起动燃料电池。该燃料电池系统包括：具有压缩机（21）和燃烧器（22）的燃气轮机（11）; 将由压缩机压缩的压缩空气（A1）供给到燃烧器的第一压缩空气供给管路（26）具有空气电极和燃料电极的固体氧化物燃料电池（SOFC）（13）; 将由压缩机压缩的部分压缩空气（A2）供给到空气极的第二压缩空气供给管线（31）设置在第二压缩空气供给管线上的鼓风机（33），并且提高压缩空气（A2）的压力; 在所述第二压缩空气供给管路中连接所述鼓风机的上游侧和下游侧的循环增压管路（60）设置在循环增压线上的控制阀（61）设置在所述第二压缩空气供给管路中的循环增压管路与所述SOFC之间的控制阀（63）以及控制装置（62），其关闭所述控制阀并打开所述控制阀以在启动所述SOFC时启动所述鼓风机。

6. 发明申请

US20150244007A1 POWER GENERATION SYSTEM AND METHOD OF OPERATING POWER GENERATION SYSTEM 审中-公开
标题翻译：发电系统及运行发电系统的方法
公开(公告)号：US20150244007A1
公开(公告)日：2015-08-27
申请号：US14436281
申请日：2013-11-12
申请人： MITSUBISHI HITACHI POWER SYSTEMS, LTD.
发明人： Yukimasa Nakamoto , Kazunori Fujita , So Manabe
IPC分类号： H01M8/04
CPC分类号： H01M8/04111 , H01M8/04395 , H01M8/04753 , H01M8/06 , H01M2008/1293 , H01M2250/402 , H01M2300/0074 , Y02B90/12 , Y02P90/40
摘要： A power generation system includes a fuel cell, a gas turbine, a first compressed air supply line that supplies the air from a compressor to a combustor, a second compressed air supply line that supplies compressed air from the compressor to the fuel cell, a compressed air circulating line that supplies exhausted air from the fuel cell to the combustor, a detection unit that detects ease of flow of compressed air in the fuel cell, an adjustment unit that adjusts balance between ease of flow of the compressed air in the first compressed air supply line and ease of flow of the compressed air in the second compressed air supply line.
摘要翻译：发电系统包括燃料电池，燃气轮机，将空气从压缩机供给燃烧器的第一压缩空气供给管路，将来自压缩机的压缩空气供给到燃料电池的第二压缩空气供给管路，压缩机空气循环管线，其从燃料电池向燃烧器供给排出的空气;检测单元，其检测燃料电池中的压缩空气流动的容易性;调节单元，其调节第一压缩空气中的压缩空气流动的容易性之间的平衡供应线路和第二压缩空气供应管线中的压缩空气的容易流动。

7. 发明授权

US11441452B2 Heat exchange system, cooling system and cooling method of gas turbine, and gas turbine system 有权
公开(公告)号：US11441452B2
公开(公告)日：2022-09-13
申请号：US16337995
申请日：2017-09-04
申请人： Mitsubishi Hitachi Power Systems, Ltd.
发明人： Naoki Shino , Yukimasa Nakamoto , Isamu Matsumi , Atsushi Kubota
IPC分类号： F01K23/10 , F02C7/141 , F02C3/04 , F02C7/18 , F02C6/18
摘要： A heat exchange system includes: a gas line through which a gas to be cooled flows; a first heat exchanger disposed in the gas line and configured to cool the gas through heat exchange with a refrigerant; a refrigerant introduction line for introducing the refrigerant into the first heat exchanger; a refrigerant discharge line for discharging the refrigerant after cooling the gas from the first heat exchanger; a recirculation line for recirculating at least a part of the refrigerant flowing through the refrigerant discharge line into the refrigerant introduction line; and a flow-rate adjustment unit for adjusting a flow rate of the refrigerant flowing through the recirculation line so that a temperature of the refrigerant introduced into the first heat exchanger from the refrigerant introduction line is not lower than a threshold.

8. 发明授权

US10844753B2 Boiler, steam-generating plant provided with same, and method for operating boiler 有权
公开(公告)号：US10844753B2
公开(公告)日：2020-11-24
申请号：US15560316
申请日：2016-03-22
申请人： MITSUBISHI HITACHI POWER SYSTEMS, LTD.
发明人： Hideyuki Uechi , Hiroyuki Yagita , Kuniaki Aoyama , Hideaki Sugishita , Yukimasa Nakamoto , Yuichi Oka , Naoki Hisada , Tarou Ichihara
IPC分类号： F01K23/10 , F22D1/02 , F22B1/18 , F01K25/08 , F01K25/10 , F01K11/02
CPC分类号： F01K23/10 , F01K11/02 , F01K25/08 , F01K25/10 , F22B1/18 , F22B1/1815 , F22D1/02
摘要： A boiler including one or more evaporators, an economizer, and a low-temperature heat exchanger. The economizer is located on a downstream side of the most downstream evaporator which is an evaporator at the most downstream side among the one or more evaporators. The low-temperature heat exchanger is located on the downstream side of the economizer, has an inlet for receiving water from the outside, and is configured to heat the water introduced from the inlet and sent to the economizer with the combustion gas.

9. 发明授权

US10490832B2 Power generation system and method for activating fuel cell in power generation system 有权
公开(公告)号：US10490832B2
公开(公告)日：2019-11-26
申请号：US15935649
申请日：2018-03-26
申请人： MITSUBISHI HITACHI POWER SYSTEMS, LTD.
发明人： So Manabe , Yukimasa Nakamoto , Hiroyuki Ozawa
IPC分类号： H01M8/04111 , H01M8/04119 , H01M8/04089 , H01M8/0438 , H01M8/124 , F02C3/04 , F02C3/14 , F02C9/22
CPC分类号： H01M8/04111 , F02C3/04 , F02C3/14 , F02C9/22 , H01M8/04089 , H01M8/04119 , H01M8/04395 , F05D2220/32 , F05D2240/12 , F05D2240/35 , H01M2008/1293 , Y02E20/16
摘要： A power generation system includes a gas turbine having a compressor, a combustor, and a turbine, an inlet guide vane in an air intake port in the compressor, a first compressed air supply line for supplying compressed air compressed by the compressor to the combustor, a solid oxide fuel cell (SOFC) having an air electrode and a fuel electrode, a second compressed air supply line for supplying at least part of the compressed air compressed by the compressor to the air electrode, a control valve in the second compressed air supply line, and a control device for opening the control valve when the SOFC is activated and changing a degree of opening of the inlet guide vane from a preset reference degree of opening.

10. 发明授权

US09979033B2 Power generation system and method for activating fuel cell in power generation system 有权
公开(公告)号：US09979033B2
公开(公告)日：2018-05-22
申请号：US14436666
申请日：2013-10-28
申请人： MITSUBISHI HITACHI POWER SYSTEMS, LTD.
发明人： So Manabe , Yukimasa Nakamoto , Hiroyuki Ozawa
IPC分类号： H01M8/04 , F02C3/14 , F02C3/04 , F02C9/22 , H01M8/04111 , H01M8/04119 , H01M8/04089 , H01M8/0438 , H01M8/124
CPC分类号： H01M8/04111 , F02C3/04 , F02C3/14 , F02C9/22 , F05D2220/32 , F05D2240/12 , F05D2240/35 , H01M8/04089 , H01M8/04119 , H01M8/04395 , H01M2008/1293 , Y02E20/16
摘要： A power generation system includes a gas turbine having a compressor, a combustor, and a turbine, an inlet guide vane in an air intake port in the compressor, a first compressed air supply line for supplying compressed air compressed by the compressor to the combustor, a solid oxide fuel cell (SOFC) having an air electrode and a fuel electrode, a second compressed air supply line for supplying at least part of the compressed air compressed by the compressor to the air electrode, a control valve in the second compressed air supply line, and a control device for opening the control valve when the SOFC is activated and changing a degree of opening of the inlet guide vane from a preset reference degree of opening.

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