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公开(公告)号：US20240352876A1
公开(公告)日：2024-10-24
申请号：US18685562
申请日：2022-08-23
发明人： Vanessa MARIOTTI
CPC分类号： F01K7/38 , F01D17/145 , F01K7/345 , F05D2220/31 , F05D2240/12 , F05D2260/60
摘要： A balanced grid valve for steam extraction from a multi-stage steam turbine comprising a first balancing chamber and a second balancing chamber which are configured to receive steam at high pressure through at least one duct. The balancing chambers are preferably in the form of annular grooves and are arranged at two different radial distances from the axis of the valve in order to reduce mechanical distortion of the valve.
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公开(公告)号：US20240133319A1
公开(公告)日：2024-04-25
申请号：US17968920
申请日：2022-10-18
摘要： A system for readying sub-critical and super-critical steam generator, a servicing method of the sub-critical and the super-critical steam generator and a method of operation of sub-critical and super-critical steam generator is provided. The steam generator includes a first auxiliary heating device disposed on at least one water-steam separator for heating the at least one water-steam separator, and/or a second auxiliary heating device disposed at least on a part of furnace top-end piping for heating the furnace top-end piping. The auxiliary heating devices are heating steam producing components of the steam generator and thus allowing to keep them above the temperature in which materials creating the steam producing components are brittle. The method includes recirculation of the water through the steam generator.
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公开(公告)号：US11371442B2
公开(公告)日：2022-06-28
申请号：US17174490
申请日：2021-02-12
申请人： MALTA INC.
发明人： Raj Apte , Philippe Larochelle
IPC分类号： F02C9/24 , F01K13/02 , F01K25/10 , F01D15/10 , F01K3/06 , F22B1/00 , F01K3/18 , F01K7/38 , F01K3/02 , F01K3/12 , F02C1/04 , F02C1/10 , F02C9/16 , F01K25/06
摘要： Systems and methods for variable pressure inventory control of a closed thermodynamic cycle power generation system or energy storage system, such as a reversible Brayton cycle system, with at least a high pressure tank and an intermediate pressure tank are disclosed. Operational parameters of the system such as working fluid pressure, turbine torque, turbine RPM, generator torque, generator RPM, and current, voltage, phase, frequency, and/or quantity of electrical power generated and/or distributed by the generator may be the basis for controlling a quantity of working fluid that circulates through a closed cycle fluid path of the system.
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公开(公告)号：US11333044B2
公开(公告)日：2022-05-17
申请号：US16477085
申请日：2017-02-10
发明人： Hirokazu Kawashima
摘要： A steam turbine includes: a partition section that partitions a high-pressure stage and a low-pressure stage; and a pressure regulation valve that regulates a pressure of extraction steam. The pressure regulation valve includes: a plurality of flow rate regulation valves; and a plurality of flow path compartments that correspond to the respective flow rate regulation valves and that communicate with the low-pressure stage side relative to the partition section through respective nozzle holes. The plurality of flow path compartments are arranged over the entire partition section in a circumferential direction in a region including an outer peripheral side of the pressure regulation valve relative to the partition section as a whole. The partition section includes a bypass passage that makes the high-pressure stage side and the low-pressure stage side communicate with each other without passing through the pressure regulation valve.
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5.发明授权公开(公告)号：US11293310B1
公开(公告)日：2022-04-05
申请号：US17419815
申请日：2020-05-08
摘要： A steam network assembly for a plant including an ammonia-producing unit and a urea-producing unit, including a high-pressure steam line, two medium-pressure steam lines and first and second turbines supplied with high-pressure steam by the high-pressure steam line; wherein the first turbine is a condensing-type turbine with extraction into one of the two medium-pressure steam lines, and is configured to deliver power to a syngas compressor in the ammonia-producing unit of the plant, and the second turbine is a counter-pressure type turbine with extraction connected to the two medium-pressure steam lines and is configured to deliver power to a CO2 compressor in the urea-producing unit of the plant. A method to distribute high-pressure steam in a steam network assembly for a plant including an ammonia-producing unit and a urea-producing unit and a method to revamp the steam network assembly for a plant including an ammonia-producing unit and a urea-producing unit.
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6.发明申请公开(公告)号：US20220056817A1
公开(公告)日：2022-02-24
申请号：US17521190
申请日：2021-11-08
发明人： Timothy Held
IPC分类号： F01K3/12 , F01K3/08 , F01K7/16 , F01K19/00 , F28D17/04 , F01K13/00 , F01K7/38 , F01K23/02 , F02C1/10
摘要： Systems and methods are provided for charging a pumped thermal energy storage (“PTES”) system. A system may include a compressor or pump configured to circulate a working fluid within a fluid circuit, wherein the working fluid enters the pump at a first pressure and exits at a second pressure; a first heat exchanger through which the working fluid circulates in use; a second heat exchanger through which the working fluid circulates in use; a third heat exchanger through which the working fluid circulates in use, a turbine positioned between the first heat exchanger and the second heat exchanger, configured to expand the working fluid to the first pressure; a high temperature reservoir connected to the first heat exchanger; a low temperature reservoir connected to the second heat exchanger, and a waste heat reservoir connected to the third heat exchanger.
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公开(公告)号：US11236640B2
公开(公告)日：2022-02-01
申请号：US16929937
申请日：2020-07-15
发明人： Shingo Tamura
IPC分类号： F01K7/22 , F01K7/40 , F22D1/00 , F01K7/26 , F01K11/02 , F01K13/02 , F01K7/38 , F01K7/24 , F01K7/34 , F22D1/32 , F01K17/00
摘要： A steam power plant includes a first steam power plant, a second steam power plant, and an inter-unit. The first steam power plant includes a boiler, a high-pressure turbine, a first reheat line, a first feed water heater, and a high-pressure extraction steam line. The second steam power plant includes a boiler, a high-pressure turbine, a first reheat line, a first feed water heater, and a high-pressure extraction steam line. The inter-unit connected extraction steam line connects the high-pressure extraction steam line of the first steam power plant with the high-pressure extraction steam line of the second steam power plant.
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公开(公告)号：US10920674B2
公开(公告)日：2021-02-16
申请号：US16576329
申请日：2019-09-19
申请人： Malta Inc.
发明人： Raj Apte , Philippe Larochelle
IPC分类号： F02C9/24 , F01K13/02 , F01K25/10 , F01D15/10 , F01K3/06 , F22B1/00 , F01K3/18 , F01K7/38 , F01K3/02 , F01K3/12 , F02C1/04 , F02C1/10 , F02C9/16 , F01K25/06
摘要： Systems and methods for variable pressure inventory control of a closed thermodynamic cycle power generation system or energy storage system, such as a reversible Brayton cycle system, with at least a high pressure tank and an intermediate pressure tank are disclosed. Operational parameters of the system such as working fluid pressure, turbine torque, turbine RPM, generator torque, generator RPM, and current, voltage, phase, frequency, and/or quantity of electrical power generated and/or distributed by the generator may be the basis for controlling a quantity of working fluid that circulates through a closed cycle fluid path of the system.
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公开(公告)号：US10907548B2
公开(公告)日：2021-02-02
申请号：US16260929
申请日：2019-01-29
申请人： Malta Inc.
发明人： Raj Apte , Philippe Larochelle
IPC分类号： F02C9/24 , F02C1/08 , F02C1/10 , F02C6/16 , F01K13/02 , B01D53/26 , F02C1/05 , F01K13/00 , F02C1/04 , F02C6/14 , F28D20/00 , F01K3/10 , F01K3/02 , F01K3/06 , F01K3/12 , F01K3/18 , F01K7/38 , F01K25/10 , F22B1/00 , F01K25/06
摘要： Systems and methods relating to use of external air for inventory control of a closed thermodynamic cycle system or energy storage system, such as a reversible Brayton cycle system, are disclosed. A method may involve, in a closed cycle system operating in a power generation mode, circulating a working fluid may through a closed cycle fluid path. The closed cycle fluid path may include a high pressure leg and a low pressure leg. The method may further involve in response to a demand for increased power generation, compressing and dehumidifying environmental air. And the method may involve injecting the compressed and dehumidified environmental air into the low pressure leg.
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公开(公告)号：US20200056510A1
公开(公告)日：2020-02-20
申请号：US16662251
申请日：2019-10-24
摘要： A system for aggregating a working fluid includes a fluid delivery line defining a fluid connection to at least one downstream process component; a plurality of collection lines each fluidically connected to a plurality of header lines by a respective set of header links; and a connecting junction fluidically connecting each of the plurality of collection lines to the fluid delivery line, the connecting junction including: at least one tee member oriented substantially perpendicularly with respect to the fluid delivery line, the at least one tee member connected to the fluid delivery line, and a plurality of branch fluid lines each fluidically coupling a respective one of the plurality of collection lines to the at least one tee member.
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