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91.发明授权公开(公告)号：US11927099B2
公开(公告)日：2024-03-12
申请号：US17756993
申请日：2020-11-27
CPC分类号： F01D11/02 , F01D25/246 , F05D2230/64 , F05D2240/59 , F05D2260/31 , F05D2260/36
摘要： The composite seal structure includes a carrier ring and a seal element housed in an annular groove formed between a circumferential outer wall and two side walls of the carrier ring. The seal element has a first region in surface-to-surface contact with the annular groove and a second, seal-ing region protruding from the annular groove. A fastening arrangement couples the seal element and the carrier ring to one another. The fastening arrangement comprises a plurality of fastening pins circumferentially arranged around the axis of the carrier ring. Also disclosed is a method for manufacturing the seal structure.
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公开(公告)号：US20240003619A1
公开(公告)日：2024-01-04
申请号：US18255012
申请日：2021-11-26
发明人： Simone AMIDEI , Andrea BURRATO , Andrea CALDERARO
CPC分类号： F25J1/0211 , F25J1/0022 , F25J1/0284 , F25J1/0217 , F25J2260/02 , F25J2220/66 , F25J2290/42 , F25J2260/30 , F25J2220/68
摘要： The system comprises a natural gas feed and a natural gas liquefaction facility having a refrigeration circuit comprising: a compressor adapted to compress at least one refrigerant fluid; a driver adapted to drive the compressor; and a heat exchanger adapted to receive a flow of natural gas from the natural gas feed and remove heat therefrom by heat exchange against the refrigerant fluid. A heat pump collects low-temperature thermal energy rejected from the natural gas liquefaction facility and transfers the collected thermal energy to a thermal energy storage system at a higher temperature. The system further comprises a processing facility powered by thermal energy from the thermal energy storage system.
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93.发明公开公开(公告)号：US20230356143A1
公开(公告)日：2023-11-09
申请号：US18042402
申请日：2021-08-18
发明人： Olaf STALLMANN , Schnoor BIRGER
CPC分类号： B01D53/1475 , B01D53/62 , B01D2252/102 , B01D2252/103 , B01D2257/302 , B01D2257/504 , B01D2258/0283
摘要： A direct contact cooler comprises a flue gas stream path extending from a flue gas inlet to a flue gas outlet. The direct contact cooler further includes a first treatment section and a second treatment section disposed along the flue gas stream path. The first treatment section is arranged upstream of the second treatment section with respect to a flue gas stream along the flue gas stream path. The direct contact cooler includes an ammonia-rich wash water inlet and an ammonia-lean wash water outlet. The ammonia-rich wash water inlet is disposed between the first treatment section and the second treatment section and the ammonia-lean wash water outlet is disposed upstream of the first treatment section. Also disclosed herein are an ammonia-based carbon dioxide removal system including a direct contact cooler as defined above and a relevant method for carbon dioxide abatement.
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94.发明公开公开(公告)号：US20230332508A1
公开(公告)日：2023-10-19
申请号：US17907200
申请日：2021-03-19
发明人： Francesco CANGIOLI , Davide BILIOTTI , Massimiliano ORTIZ NERI , Giuseppe SASSANELLI , Vittorio MICHELASSI
CPC分类号： F01D15/10 , F02C7/06 , F01D25/24 , F02C6/18 , H02K7/09 , H02K7/1823 , F05D2260/211 , F05D2240/51 , F05D2220/76
摘要： An integrated hermetically sealed turboexpander-generator comprises a hermetically sealed casing arrangement, a turboexpander, a compressor and an electric generator, arranged in the hermetically sealed casing arrangement along a common shaft line, supported by active magnetic bearings. Also disclosed is a thermodynamic system using the integrated hermetically sealed turboexpander-generator to convert waste heat from a waste heat source into electric power. The electric generator is arranged at one end of the common shaft line.
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公开(公告)号：US11781492B2
公开(公告)日：2023-10-10
申请号：US17251098
申请日：2019-08-27
发明人： Bruno Giunta , Marco Palladino
CPC分类号： F02C9/22 , F02C3/10 , F02C9/54 , F05D2260/96 , F05D2270/024 , F05D2270/07 , F05D2270/304
摘要： A two-gas shaft turbine control system (31) is disclosed. The gas turbine control system comprises a fuel controller (35), which receives a speed error signal, indicating whether the low-pressure turbine wheel (11) of the gas turbine (1) is rotating at the desired target speed. The gas turbine control system (31) further comprises an NGV controller (41), which receives a speed error signal, indicating whether the high-pressure turbine wheel (9) of the gas turbine engine (1) is rotating at the desired target speed. Two cross channel controllers are further provided. On the basis of a gas turbine model, a first cross channel controller (43) provides a fuel control modification signal, which is added to a control signal generated by the fuel controller (35). A second cross channel controller (45) provides an NGV control modification signal. The modification signals are aimed at reducing or canceling the effect of mutual interaction between fuel control and NGV control. A two-shaft gas turbine engine system and a method of operation are further disclosed.
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公开(公告)号：US20230032288A1
公开(公告)日：2023-02-02
申请号：US17759015
申请日：2021-01-15
摘要： A return channel for a centrifugal turbo machine. The return channel includes a plurality of return channel vanes, arranged around a return channel axis. Each return channel vane includes: a leading edge at a first distance from the return channel axis, a trailing edge at a second distance from the return channel axis, the second distance being smaller than the first distance. A respective flow passage is defined between each pair of adjacently arranged return channel vanes. The return channel vanes are arranged with a non-constant pitch around the return channel axis.
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97.发明授权公开(公告)号：US11486406B2
公开(公告)日：2022-11-01
申请号：US15736163
申请日：2016-06-15
发明人： Lorenzo Gallinelli , Andrea Franchi
摘要： A method for handling the shutdown of a turbomachine string installed in a plant for the liquefaction of a gaseous product comprising at least two turbomachine strings comprises the steps of detecting the shutdown of a first turbomachine string; promptly increasing the driving torque on a shaft of a second turbomachine string when the shutdown is detected; maintaining the driving torque increase on the shaft of the second turbomachine string until a preset speed of the motor driver is reached or a predetermined period of time expires.
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公开(公告)号：US20220260118A1
公开(公告)日：2022-08-18
申请号：US17596006
申请日：2020-06-03
IPC分类号： F16C37/00
摘要： The bearing has a housing and a plurality of pads coupled with the housing. The pads form bearing surfaces facing a shaft receiving space. The pads are provided with cooling micro-channels formed therein, adapted to circulate lubrication fluid and improve heat removal.
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公开(公告)号：US20220235789A1
公开(公告)日：2022-07-28
申请号：US17597797
申请日：2020-07-20
摘要： A compressor arrangement having a main compressor, a piping system containing process gas to be extracted after the shut-down of the main compressor and one or more components emitting or leaking depressurized process gas while the compressor is operating or starting up; the compressor arrangement further comprises one or more collectors arranged to collect the depressurized process gas emitted from said components and an additional compressor fluidly coupled with the piping system and with the collectors in in order to compress the depressurized process gas coming from the components while the compressor is starting up or operating and to compress process gas coming from the piping system after a shut-down of the compressor.
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公开(公告)号：US20220154588A1
公开(公告)日：2022-05-19
申请号：US17594045
申请日：2020-04-03
发明人： Lorenzo Cosi , Enrico Giusti , Andrea Paggini , Damaso Checcacci , Federico Bucciarelli , Massimiliano Gagliano , Marco Fiori , Damiano Guadagnoli
IPC分类号： F01D9/04
摘要： The steam turbine has a plurality of expansion stages and stator blades upstream at least one of the expansion stages; in order to regulate steam flow inside the steam turbine and maximize turbine efficiency, the angular positions of the stator blades are controlled for example by an external control unit through e.g. a command rod during operation of the steam turbine.
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