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1. 发明授权

US11578623B2 Cryogenic combined cycle power plant 有权
公开(公告)号：US11578623B2
公开(公告)日：2023-02-14
申请号：US17367050
申请日：2021-07-02
申请人： William M. Conlon
发明人： William M. Conlon
IPC分类号： F01K19/00 , F01K11/00 , F01K13/00 , F01K25/06 , F01K9/00 , F01K7/02 , F01K23/10 , F02C6/02 , F02C6/18
摘要： In a cryogenic combined cycle power plant electric power drives a cryogenic refrigerator to store energy by cooling air to a liquid state for storage within tanks, followed by subsequent release of the stored energy by first pressurizing the liquid air, then regasifying the liquid air and raising the temperature of the regasified air at least in part with heat exhausted from a combustion turbine, and then expanding the heated regasified air through a hot gas expander to generate power. The expanded regasified air exhausted from the expander may be used to cool and make denser the inlet air to the combustion turbine. The combustion turbine exhaust gases may be used to drive an organic Rankine bottoming cycle. An alternative source of heat such as thermal storage, for example, may be used in place of or in addition to the combustion turbine.

2. 发明授权

US11454167B1 Pumped heat energy storage system with hot-side thermal integration 有权
公开(公告)号：US11454167B1
公开(公告)日：2022-09-27
申请号：US16991859
申请日：2020-08-12
申请人： MALTA INC.
发明人： Benjamin R. Bollinger , Bao H. Truong
IPC分类号： F01K13/00 , F02C1/00 , F02C1/05 , F28D20/00 , F02C1/10 , F02C6/14
摘要： A system including: (i) a pumped-heat energy storage system (“PHES system”), wherein the PHES system is operable in a charge mode to convert electricity into stored thermal energy in a hot thermal storage (“HTS”) medium; (ii) an electric heater in thermal contact with the hot HTS medium, wherein the electric heater is operable to heat the hot HTS medium above a temperature achievable by transferring heat from a working fluid to a warm HTS medium in a thermodynamic cycle.

3. 发明申请

US20220228511A1 COMBINED CYCLE POWER DEVICE 有权
公开(公告)号：US20220228511A1
公开(公告)日：2022-07-21
申请号：US17609279
申请日：2020-04-28
申请人： Huayu Li
发明人： Huayu Li
IPC分类号： F01K19/04 , F01K7/16 , F01K23/10 , F01K13/00
摘要： The combined cycle power device of the present invention belongs to the field of energy and power technology. A combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, the second high-temperature heat exchanger, a condenser and an evaporator. A condenser connects a pump and an evaporator, an evaporator connects the second expander, the second expander connects the second high-temperature heat exchanger and a high-temperature heat exchanger, a compressor connects the high-temperature heat exchanger, the high-temperature heat exchanger connects an expander, the expander connects the evaporator, the third expander connects the condenser, the evaporator connects compressor and the third expander. The high-temperature heat exchanger and the second high-temperature heat exchanger have the heat source medium, the condenser has the cooling source medium. The expander, the second expander and the third expander connect the compressor and transmit power.

4. 发明授权

US11371395B2 Gland steam condenser for a combined cycle power plant and methods of operating the same 有权
公开(公告)号：US11371395B2
公开(公告)日：2022-06-28
申请号：US17003535
申请日：2020-08-26
申请人： General Electric Company
发明人： Rajkumar Jain , Sudhir Ramesh Chaudhari
IPC分类号： F01K23/10 , F01K9/00 , F01K9/02 , F01K13/00
摘要： A combined cycle power plant that includes a gas turbine engine, a heat recovery steam generator (HRSG), a steam turbine, a primary condenser, a condensate extraction pump, a gland steam condenser, and a cooling module. The HRSG generates steam. The steam turbine receives steam from the HRSG. The primary condenser is fluidly coupled to the steam turbine and receives a first portion of exhaust steam from the steam turbine. The condensate extraction pump is fluidly coupled to the primary condenser and receives a condensed first portion of exhaust steam. The gland steam condenser is fluidly coupled to the steam turbine and receives a second portion of exhaust steam from the steam turbine. The cooling module is fluidly coupled to the gland steam condenser and supplies a cooling fluid to the gland steam condenser. The cooling module is fluidly isolated from the condensate extraction pump.

5. 发明申请

US20220178277A1 SINGLE-WORKING-MEDIUM VAPOR COMBINED CYCLE 有权
公开(公告)号：US20220178277A1
公开(公告)日：2022-06-09
申请号：US17606447
申请日：2020-04-20
申请人： Huayu Li
发明人： Huayu Li
IPC分类号： F01K7/10 , F01K13/00
摘要： The single-working-medium vapor combined cycle is provided in this invitation and belongs to the field of energy and power technology. A single-working-medium vapor combined cycle method consisting of eleven processes which are conducted with M1 kg of working medium and M2 kg of working medium separately or jointly: performing a pressurization process to set a state (1) to (2) of the M1 kg of working medium, performing a heat-absorption and vaporization process to set a state (2) to (3) of the M1 kg of working medium, performing a depressurization process to set a state (3) to (4) of the M1 kg of working medium, performing a pressurization process to set a state (1) to (e) of the H kg of working medium, performing a heat-absorption process to set a state (e) to (7) of the H kg of working medium, performing a pressurization process to set a state (7) to (4) of the M2 kg of working medium, performing a heat-absorption process to set a state (4) to (5) of the (M1+M2) kg of working medium, performing a depressurization process to set a state (5) to (6) of the (M1+M2) kg of working medium, performing a mixed heat-releasing process to set a state (6) to (7) of the (M1+M2) kg of working medium and H kg of working medium, performing a depressurization process to set a state (7) to (8) of the (M1+H) kg of working medium, performing a heat-releasing and condensation process to set a state (8) to (1) of the (M1+H) kg of working medium.

6. 发明申请

US20220154602A9 VALVE POSITION CONTROL 有权
公开(公告)号：US20220154602A9
公开(公告)日：2022-05-19
申请号：US17092477
申请日：2020-11-09
申请人： ABB Schweiz AG
发明人： Camilo Lopez , Mark Foltz , Steve Miller , Kevin Dowdell , Mark Wieland , Alan Majors
IPC分类号： F01K13/00 , F01K13/02 , F16K37/00
摘要： A control system is provided for a turbine valve. The turbine valve has a first coil and a second coil to control or sense movement of a mechanical valve positioner. Two valve positioners are provided with each valve positioner having two drive circuits to drive the first and second coils. Switches are provided such that only one drive circuit is connected to each coil at a time. The control system may also include a hydraulic pilot valve section and a main hydraulic valve section. Feedbacks are used to determine a pilot valve error and a main valve error which are combined to determine a turbine valve error. The turbine valve error is repeatedly determined to minimize the error.

7. 发明授权

US11187112B2 Systems and methods for generating electricity via a pumped thermal energy storage system 有权
公开(公告)号：US11187112B2
公开(公告)日：2021-11-30
申请号：US16453739
申请日：2019-06-26
申请人： ECHOGEN POWER SYSTEMS LLC
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 , F28D20/00
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.

8. 发明申请

US20210246809A1 STEAM TURBINE PLANT AND COOLING METHOD FOR SAME 有权
公开(公告)号：US20210246809A1
公开(公告)日：2021-08-12
申请号：US17049371
申请日：2019-03-27
申请人： Mitsubishi Power, Ltd.
发明人： Daiki FUJIMURA , Susumu SEKINE
IPC分类号： F01D25/12 , F01K13/00 , F01D15/00 , F02C6/00 , F01D19/00 , F02C9/28
摘要： A steam turbine plant is provided with: a boiler; a fuel valve; a low-temperature steam generation source; a steam turbine; a main steam line that guides steam generated in the boiler to the steam turbine; a main steam adjustment valve that is provided to the main steam line; a low-temperature steam line that guides low-temperature steam from the low-temperature generation source to a position closer to the steam turbine-side than the main steam adjustment valve in the main steam line; a low-temperature steam valve provided to the low-temperature steam line; and a control device. During a stopping process of the steam turbine plant, the control device sends a command to close the fuel valve, and then sends a command to open the low-temperature steam valve.

9. 发明授权

US11060423B2 Closed circuit functioning according to a Rankine cycle with a device for the emergency stopping of the circuit, and method using such a circuit 有权
公开(公告)号：US11060423B2
公开(公告)日：2021-07-13
申请号：US16325484
申请日：2017-07-11
申请人： IFP Energies nouvelles , ENOGIA
发明人： Arthur Leroux , Antonin Pauchet
IPC分类号： F01K13/02 , F01K13/00 , F01D21/00 , F01D25/08 , F22B37/02 , F22B37/50
摘要： The present invention relates to a closed circuit operating on a Rankine cycle, the circuit comprising at least one compression and circulation pump for a working fluid in liquid form, a heat exchanger over which a hot source is swept in order to evaporate the fluid, means for expanding the fluid in the form of a vapor, a cooling exchanger swept by a cold source to condense the working fluid, a reservoir of working fluid, and working fluid circulation pipes for circulating the fluid between the pump, the heat exchanger, the expansion means, the condenser and the reservoir.
The circuit comprises a device for draining the fluid contained in the heat exchanger.

10. 发明申请

US20210172344A1 PROCESSOR-BASED ORGANIC RANKINE CYCLE SYSTEM FOR PREDICTIVELY-MODELED RECOVERY AND CONVERSION OF THERMAL ENERGY 有权
公开(公告)号：US20210172344A1
公开(公告)日：2021-06-10
申请号：US17183283
申请日：2021-02-23
申请人： Victor Juchymenko
发明人： Victor Juchymenko
IPC分类号： F01K23/06 , F01K13/00 , F01K25/08 , F01K27/02
摘要： A system for controlled recovery of thermal energy and conversion to mechanical energy. The system collects thermal energy from a reciprocating engine, specifically from engine jacket fluid and/or engine exhaust and uses this thermal energy to generate a secondary power source by evaporating an organic propellant and using the gaseous propellant to drive an expander in production of mechanical energy. A predictive control circuit utilizes ambient and system conditions such as temperature, pressure, and flow of organic propellant at one or more locations. The predictive control module regulates system parameters in advance based on monitored information to optimize secondary power output. A thermal fluid heater may be used to heat propellant. The system may be used to meet on-site power demands using primary, secondary, and tertiary power.

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