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公开(公告)号：US11598261B2
公开(公告)日：2023-03-07
申请号：US17601788
申请日：2021-04-27
发明人： James E. Berry
摘要： To produce power using the cold in a stored fluid in a cold condensed state (for example, LNG or liquid air), the fluid is initially pumped, heated, and expanded to generate a first amount of power and form initially expanded fluid, which is then re-condensed, re-pumped, re-heated, and re-expanded to generate a second amount of power, where the initially expanded fluid is re-condensed against the pumped fluid from the initial pumping. The technique can be used to store excess energy in the cold condensed fluid using excess energy generation capacity for subsequent recovery when energy is either deficient or otherwise more expense to generate.
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公开(公告)号：US10138758B2
公开(公告)日：2018-11-27
申请号：US15021097
申请日：2014-09-04
发明人： Hiroyuki Yagita , Kouji Abe , Takao Koide , Toshihide Noguchi , Tomoaki Nakai , Hiroaki Ishikawa , Hiroyuki Esashi , Jun Hyodo
摘要： The quatro generation system of the present invention includes: a power generation engine driven by fuel gas; an exhaust-heat boiler configured to utilize energy of exhaust gas discharged from the power generation engine to produce steam from boiler water; a boiler-water circulation device configured to supply the steam produced by the exhaust-heat boiler to a steam-energy recovery unit, and to return condensed water of the steam to the exhaust-heat boiler after the steam-energy recovery unit recovers energy of the steam; a condensation economizer configured to utilize condensation latent heat of exhaust gas discharged from the exhaust-heat boiler to heat a heat medium; and a heat-medium circulation device configured to supply the heat medium heated by the condensation economizer to a thermal-energy recovery unit, and to return the heat medium to the condensation economizer after the thermal-energy recovery unit recovers energy of the heat medium.
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公开(公告)号：US20170159501A1
公开(公告)日：2017-06-08
申请号：US15330922
申请日：2016-11-17
CPC分类号： F01K3/22 , B60K3/00 , B60K3/02 , B60K3/04 , B60L11/04 , B60L11/12 , B60L11/1805 , B63H21/04 , B63H21/10 , F01K7/025 , F01K7/12 , F01K9/003 , F01K11/02 , F01K13/02 , F01K15/02 , F01K21/045 , F01K25/005 , F01K25/06 , F01K25/08 , F16T1/02 , H02K7/1823
摘要： A method and system using at least two different working fluids to be supplied to an expander to cause it to do mechanical work. The expander is started by providing a compressed gaseous working fluid at a sufficient pressure to the expander. At the same time the compressed gaseous working fluid is provided to the expander, a second working fluid that is liquid at ambient temperatures is provided to a heater to be heated. The second working fluid is heated to its boiling point and converted to pressurized gas Once the pressure is increased to a sufficient level, the second working fluid is injected into the expander to generate power, and the supply of the first working fluid may be stopped. After expansion in the expander, the working fluids are is exhausted from the expander, and the second working fluid may be condensed for separation from the first working fluid. Control circuitry controls the admission of the first and second working fluids responsive to monitoring the load on the expander.Waste heat in the exhaust from the expander can be used to heat or alternatively to dry an element in a device that can be operated as a desiccator to dry air when operated in a summer mode, or to heat air when operated in a winter mode. The air having been dried or alternatively heated is then ducted to an evaporative cooler which cools the dried air in summer mode and humidifies the heated air in winter mode.
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公开(公告)号：US4617801A
公开(公告)日：1986-10-21
申请号：US803549
申请日：1985-12-02
申请人： Robert W. Clark, Jr.
发明人： Robert W. Clark, Jr.
IPC分类号： F01B7/16 , F01B17/04 , F01B19/02 , F01B21/02 , F01B23/08 , F01B29/10 , F01K7/12 , F01K27/00 , F02G1/04 , F03G6/00 , F03G7/00 , F25B1/00 , F25B9/00 , F25B27/00
CPC分类号： F25B27/00 , F02G1/04 , F25B9/004 , F02G2242/42 , F02G2254/30 , F02G2270/70 , Y02E10/46
摘要： A thermally powered engine which obtains energy from a closed heat transfer loop. The engine has two power cylinders. A piston is reciprocally mounted within each cylinder and divides the interior space of each cylinder into two portions. A piston rod is affixed to each piston and extends through the upper closed end of each cylinder. A flexible diaphragm is mounted in the lower portion of each cylinder and with the lower closed end of the cylinder forms a power chamber. A fluid fills the upper portion of both cylinders. A passageway between the cylinders permits the fluid to act as a free piston causing the piston of the cylinder in its exhaust stroke to force refrigerant from its power chamber to the condenser of the heat transfer loop. Refrigerant from the evaporator of the transfer loop flowing into a power chamber forces the piston upward during the pistons power stroke. Valves regulate the flow of refrigerant into and out of the power chambers of each of the power cylinders. Flow of refrigerant is controlled so that motion of the pistons of the two power cylinders is 180.degree. out of phase. Several pairs of power cylinders can be connected in series with the refrigerant flowing through the pairs serially prior to reaching the condenser. Isothermal sequential displacement of the refrigerant through the power chambers of a series of pairs of power cylinders increases the thermal efficiency of the engine.
摘要翻译： 一种从封闭的传热回路获得能量的热力发动机。 发动机有两个动力缸。 活塞往复安装在每个气缸内，并将每个气缸的内部空间分成两部分。 活塞杆固定在每个活塞上并延伸穿过每个气缸的上封闭端。 柔性隔膜安装在每个气缸的下部，并且气缸的下封闭端形成动力室。 流体填充两个气缸的上部。 气缸之间的通道允许流体充当自由活塞，导致气缸的活塞在其排气冲程中将制冷剂从其动力室推到传热回路的冷凝器。 在活塞动力冲程期间，来自传递回路的蒸发器的制冷剂流入动力室迫使活塞向上。 阀调节制冷剂进出每个动力缸的动力室的流量。 控制制冷剂的流动，使得两个动力缸的活塞的运动相位相差180度。 几对动力缸可以在到达冷凝器之前与串联的制冷剂串联连接。 通过一系列动力缸的动力室的制冷剂的等温顺序位移增加了发动机的热效率。
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公开(公告)号：US12006849B2
公开(公告)日：2024-06-11
申请号：US18027531
申请日：2021-09-07
申请人： ENERSCALE GMBH
摘要： An apparatus for converting thermal energy into mechanical energy by a cycle, having a heat exchanger, a reservoir for an operating medium, a feed line, a turbine, and a return line having at least one recovery device is described. In order to also be able to utilize waste heat for the generation of electrical energy, the turbine is embodied as a disc rotor turbine. A method for converting thermal energy into mechanical energy in a cycle is also described, in which thermal energy is supplied to an operating medium in a reservoir, the operating medium evaporates and/or a pressure in the operating medium is increased, whereupon the operating medium releases energy in a turbine, after which the operating medium is returned to the reservoir.
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公开(公告)号：US10787934B2
公开(公告)日：2020-09-29
申请号：US16097978
申请日：2017-04-17
发明人： Ryota Takahashi , Issaku Fujita , Kentaro Tanaka
摘要： A steam turbine plant includes a high-medium pressure turbine having a high-pressure turbine section provided at one end portion in an axial direction and a medium-pressure turbine section provided at the other end portion; a low-pressure turbine disposed coaxially with the high-medium pressure turbine; a condenser configured to cool steam used in the low-pressure turbine to condense the steam into condensate; and a feed-water heater configured to heat the condensate with steam discharged from the high-pressure turbine section. The plant also includes a low-pressure moisture separating and heating device configured to remove moisture of steam discharged from the medium-pressure turbine section, and to heat the steam with a part of steam to be sent to an inlet portion of the high-pressure turbine section and a part of steam to be sent to an inlet portion of the medium-pressure turbine section from an outlet portion of the high-pressure turbine section.
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公开(公告)号：US09816399B2
公开(公告)日：2017-11-14
申请号：US15330922
申请日：2016-11-17
IPC分类号： B60K3/00 , B60K3/02 , B60K3/04 , F01K21/04 , F01K3/22 , F01K15/02 , F01K7/02 , F01K7/12 , F01K11/02 , F01K9/00 , F01K25/00
CPC分类号： F01K3/22 , B60K3/00 , B60K3/02 , B60K3/04 , B60L11/04 , B60L11/12 , B60L11/1805 , B63H21/04 , B63H21/10 , F01K7/025 , F01K7/12 , F01K9/003 , F01K11/02 , F01K13/02 , F01K15/02 , F01K21/045 , F01K25/005 , F01K25/06 , F01K25/08 , F16T1/02 , H02K7/1823
摘要： A method and system using at least two different working fluids to be supplied to an expander to cause it to do mechanical work. The expander is started by providing a compressed gaseous working fluid at a sufficient pressure to the expander. At the same time the compressed gaseous working fluid is provided to the expander, a second working fluid that is liquid at ambient temperatures is provided to a heater to be heated. The second working fluid is heated to its boiling point and converted to pressurized gas Once the pressure is increased to a sufficient level, the second working fluid is injected into the expander to generate power, and the supply of the first working fluid may be stopped. After expansion in the expander, the working fluids are is exhausted from the expander, and the second working fluid may be condensed for separation from the first working fluid. Control circuitry controls the admission of the first and second working fluids responsive to monitoring the load on the expander.Waste heat in the exhaust from the expander can be used to heat or alternatively to dry an element in a device that can be operated as a desiccator to dry air when operated in a summer mode, or to heat air when operated in a winter mode. The air having been dried or alternatively heated is then ducted to an evaporative cooler which cools the dried air in summer mode and humidifies the heated air in winter mode.
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公开(公告)号：US4228657A
公开(公告)日：1980-10-21
申请号：US931213
申请日：1978-08-04
申请人： Bruno S. Leo
发明人： Bruno S. Leo
IPC分类号： F01K7/00 , F01K7/12 , F01K7/34 , F01K21/00 , F01K25/00 , F01K25/02 , F01K25/10 , F03G4/00 , F03G6/06 , F03G7/04 , F03G7/00
摘要： Screw expander is employed in closed cycle steam power cycle and employs heat extraction during steam expansion to improve Rankine cycle efficiency.
摘要翻译： 螺旋膨胀机用于封闭循环蒸汽动力循环，并在蒸汽膨胀期间采用热萃取来提高朗肯循环效率。
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公开(公告)号：US20240337204A1
公开(公告)日：2024-10-10
申请号：US18293672
申请日：2021-10-06
发明人： James Henke
IPC分类号： F01K7/12
CPC分类号： F01K7/12
摘要： A steam engine (10) has an engine case (14), a stator (20) with a radially-inner surface (52) with a plurality of recesses (54), a steam generator (12) and a rotor 5 (22) that has a steam distribution chamber (44) arranged to receive steam from the generator and a plurality of steam distribution channels (46) having outlets (50) for the flow of steam into the stator recesses (54). The rotor has pressure relief ports (60) for the flow of steam from the recesses (54) into the engine case (14) and then to a condensation circuit (66). The engine operates without a boiler and produces 0 steam by injecting water into the generator (12) where it is rapidly vapourized. The rotor (22) is the only moving part and the engine can produce a wide range of power outputs.
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公开(公告)号：US12097464B2
公开(公告)日：2024-09-24
申请号：US17484068
申请日：2021-09-24
发明人： David Spicer , James L. Kendall , Steven M. Slack
CPC分类号： B01D53/1406 , B01D53/1425 , B01D53/185 , F01K7/12 , F01K17/04 , B01D2252/204 , B01D2257/504
摘要： An exhaust steam stream having an absolute pressure from 200 kPa to 1,050 kPa and shaft power are produced from an extraction turbine and/or a back-pressure turbine. The exhaust steam stream can be supplied to an amine regenerator of an amine CO2 separation process. The shaft power can be utilized to drive equipment in a hydrocarbon processing plant such as an olefins production plant.
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