公开(公告)号：US20150345341A1

公开(公告)日：2015-12-03

申请号：US14803242

申请日：2015-07-20

申请人： Echogen Power Systems, LLC

发明人： Alexander Steven Kacludis ,  Stephen R. Hostler ,  Steve B. Zakem

IPC分类号： F01K25/10 ,  F01D15/10 ,  F01K23/16 ,  F01K7/38 ,  F01K9/02

CPC分类号： F01K25/103 ,  F01D1/00 ,  F01D15/10 ,  F01K7/38 ,  F01K9/003 ,  F01K9/02 ,  F01K11/00 ,  F01K23/16 ,  F01K25/10 ,  F02C1/04 ,  F02C1/10 ,  H02K7/1823

摘要： Aspects of the invention disclosed herein generally provide heat engine systems and methods for generating electricity. In one configuration, a heat engine system contains a working fluid circuit having high and low pressure sides and containing a working fluid (e.g., sc-CO2). The system further contains a power turbine configured to convert thermal energy to mechanical energy, a motor-generator configured to convert the mechanical energy into electricity, and a pump configured to circulate the working fluid within the working fluid circuit. The system further contains a heat exchanger configured to transfer thermal energy from a heat source stream to the working fluid, a recuperator configured to transfer thermal energy from the low pressure side to the high pressure side of the working fluid circuit, and a condenser (e.g., air- or fluid-cooled) configured to remove thermal energy from the working fluid within the low pressure side of the working fluid circuit.

摘要翻译： 本文公开的本发明的方面通常提供用于发电的热机系统和方法。 在一种配置中，热机系统包含具有高低压侧的工作流体回路并且包含工作流体（例如，sc-CO 2）。 该系统还包括配置成将热能转换成机械能的动力涡轮机，被配置为将机械能转换为电力的电动发电机以及被配置成使工作流体在工作流体回路内循环的泵。 该系统还包括热交换器，其被配置为将热能从热源流传递到工作流体;还原加热器，被配置为将热能从低压侧传递到工作流体回路的高压侧;以及冷凝器 ，空气或流体冷却），其构造成从工作流体回路的低压侧内的工作流体去除热能。

公开(公告)号：US20150292365A1

公开(公告)日：2015-10-15

申请号：US14749399

申请日：2015-06-24

申请人： Massachusetts Institute of Technology

发明人： Hussam Zebian ,  Alexander Mitsos

IPC分类号： F01K7/38 ,  G06F17/10 ,  G06F17/50 ,  F01K19/00 ,  F01K17/06

CPC分类号： F01K7/38 ,  F01K7/22 ,  F01K7/24 ,  F01K7/40 ,  F01K13/02 ,  F01K17/06 ,  F01K19/00 ,  F01K25/08 ,  F05D2200/34 ,  F05D2220/31 ,  F05D2260/221 ,  F05D2260/606 ,  F05D2270/20 ,  F05D2270/301 ,  F05D2270/303 ,  F05D2270/3061 ,  F05D2270/66 ,  F22D1/32 ,  F22D1/325 ,  G06F17/10 ,  G06F17/50 ,  Y02E20/18

摘要： Systems and methods axe disclosed herein that generally involve a double pinch criterion for optimization of regenerative Rankine cycles. In some embodiments, operating variables such as bleed extraction pressure and bleed flow rate are selected such that a double pinch is obtained in a feedwater heater, thereby improving the efficiency of the Rankine cycle. In particular, a first pinch point is obtained at the onset of condensation of the bleed and a second pinch point is obtained at the exit of the bleed from the feedwater heater. The minimal approach temperature at the first pinch point can be approximately equal to the minimal approach temperature at the second pinch point. Systems that employ regenerative Rankine cycles, methods of operating such systems, and methods of optimizing the operation of such systems are disclosed herein in connection with the double pinch criterion.

摘要翻译： 本文公开的系统和方法通常涉及用于优化再生兰金循环的双重捏合标准。 在一些实施例中，选择诸如排气提取压力和排出流量的操作变量，使得在给水加热器中获得双夹点，从而提高兰金循环的效率。 特别地，在出血冷凝开始时获得第一夹点，并且在从给水加热器排出的出口获得第二夹点。 第一夹点处的最小进近温度可以近似等于第二夹点处的最小进近温度。 本文结合双重捏合标准公开了采用再生兰金循环的系统，操作这种系统的方法以及优化这种系统的操作的方法。

公开(公告)号：US20150121876A1

公开(公告)日：2015-05-07

申请号：US14521240

申请日：2014-10-22

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： ATSUO OKAICHI ,  OSAO KIDO ,  TAKUMI HIKICHI ,  OSAMU KOSUDA

IPC分类号： F22B1/18 ,  F01K7/38 ,  F01K11/02

CPC分类号： F22B1/18 ,  F01K7/38 ,  F01K9/003 ,  F01K11/02 ,  F01K13/00 ,  F01K13/02 ,  F01K17/02 ,  F01K23/065 ,  F01K23/10 ,  F01K25/08 ,  F01K25/10 ,  Y02E10/46 ,  Y02E20/12 ,  Y02E20/14 ,  Y02P80/152 ,  Y02T10/16 ,  Y02T10/166

摘要： An exhaust heat recovery apparatus includes an exhaust heat passage through which a first heat medium holding exhaust heat flows; a second heat medium passage through which the second heat medium, of which temperature is lower than that of the first heat medium, flows; a Rankine cycle which includes a pump, an evaporator, an expander, and a condenser and causes heat exchange at the evaporator between the first heat medium flowing through the exhaust heat passage and a working fluid, so that the working fluid is evaporated, the evaporated working fluid expands at the expander, and power is generated; and an exhaust heat recovery heat exchanger which causes heat exchange between the first heat medium flowing through the exhaust heat passage and the second heat medium flowing through the second heat medium passage, so that the second heat medium is heated and exhaust heat of the first heat medium is recovered.

摘要翻译： 排气热回收装置包括排气热通道，第一热介质保持排气热量流过该排气热通道; 第二热介质通道，其中温度低于第一热介质的第二热介质流过该第二热介质通道; 兰金循环，其包括泵，蒸发器，膨胀器和冷凝器，并且在蒸发器之间在流过排气热通道的第一热介质与工作流体之间进行热交换，使得工作流体蒸发，蒸发 工作流体在膨胀机上膨胀，产生动力; 以及废热回收热交换器，其在流过所述排气热通道的第一热介质和流过所述第二热介质通路的第二热介质之间进行热交换，使得所述第二热介质被加热，并且所述第一热量 介质回收。

公开(公告)号：US20090229267A1

公开(公告)日：2009-09-17

申请号：US12083668

申请日：2006-10-05

申请人： Kai Wieghardt

发明人： Kai Wieghardt

IPC分类号： F01K23/16 ,  F01K7/38 ,  F01K23/18

CPC分类号： F01K7/16

摘要： The invention relates to a steam power plant comprising at least one steam heater for preparing compressed steam, a main turbine, which is connected downstream of the steam heater, is arranged on a main drive shaft and is a high-pressure or medium-pressure turbine, and a secondary turbine, which is interposed between the steam heater and the main turbine and is arranged on a secondary drive shaft, characterized in that the secondary turbine has an at least 50% higher operating speed when compared with a nominal speed of the main turbine.

摘要翻译： 本发明涉及一种蒸汽发电厂，其包括至少一个用于制备压缩蒸汽的蒸汽加热器，连接在蒸汽加热器下游的主涡轮机布置在主驱动轴上，并且是高压或中压涡轮机 以及二次涡轮机，其设置在蒸汽加热器和主涡轮机之间并且布置在次级驱动轴上，其特征在于，与主阀的标称速度相比，次级涡轮机具有至少50％的更高的运行速度 涡轮。

公开(公告)号：US5350276A

公开(公告)日：1994-09-27

申请号：US47192

申请日：1993-04-16

申请人： Jean-Pierre Gros

发明人： Jean-Pierre Gros

IPC分类号： F01D5/06 ,  F01D25/24 ,  F01D25/26 ,  F01K7/32 ,  F01K7/38 ,  F01D1/04

CPC分类号： F01D25/24 ,  F01D25/246 ,  F01D25/26

摘要： An HP module for a turbine having a drum rotor with admission for steam having very high pressure and temperature characteristics comprises zones of different designs that are suitable for different temperature and pressure levels. An anterior zone A is at the steam admission end and includes a rotor assembly, diaphragms, an internal body, and an admission baffle carrier all of which are fully isotrophic, without any break in a horizontal join plane. A posterior zone P situated at the exhaust end has its internal body implemented in the form of two portions which are coupled to the internal body of the zone A. The internal body of the zone P may be isotropic and banded or it may be non-isotropic or it may be bolted. In the zone A the blades are mounted either in axial grooves or else in circumferential grooves, whereas in the zone P, the grooves are selected to be circumferential for simplification purposes. The advantage of the invention lies in a reduction in the transverse size of the module due:to the drum rotor;to the isotropic anterior interior body; andto elimination of the third envelope at the admission end.

摘要翻译： 用于涡轮机的HP模块具有具有非常高的压力和温度特性的蒸汽的鼓式转子，包括适于不同温度和压力水平的不同设计的区域。 前区A位于蒸汽进入端，并且包括转子组件，隔膜，内部主体和入口挡板载体，所有这些都是完全同质的，而在水平接合平面中没有任何破裂。 位于排气端的后部区域P的内部本体以两个部分的形式实现，该两个部分联接到区域A的内部主体。区域P的内部主体可以是各向同性的并且是带状的， 各向同性或可以螺栓连接。 在区域A中，叶片安装在轴向凹槽中，或者安装在周向槽中，而在区域P中，为了简化目的，将槽选择为圆周。 本发明的优点在于减小了模块的横向尺寸：由于滚筒转子; 到各向同性前内部身体; 并在入场端消除第三个信封。

公开(公告)号：US5201180A

公开(公告)日：1993-04-13

申请号：US869471

申请日：1992-04-15

申请人： Paul Girbig

发明人： Paul Girbig

IPC分类号： F01D17/20 ,  F01D1/02 ,  F01D15/00 ,  F01D17/00 ,  F01D17/04 ,  F01D21/00 ,  F01K7/38

CPC分类号： F01D15/00 ,  F01D1/023 ,  F01D17/00 ,  F01D17/04 ,  F01D21/00

摘要： A method for monitoring the operating condition of a steam turbine, to which an adjustable inlet steam quantity can be supplied and from which a variable, partially expanded steam quantity can be extracted, includes initially ascertaining a relative inlet steam quantity for an adjustable inlet steam quantity as a percentage value, and ascertaining a relative turbine power from the relative inlet steam quantity as a percentage value; and determining an applicable operating point from the relative inlet steam quantity and the relative turbine power, and subsequently displaying the applicable operating point inside a performance graph for various extraction steam quantities. An apparatus for monitoring the operating condition of the steam turbine includes a final control element for adjusting the inlet steam quantity, a first device connected to the final control element for converting a position signal of the final control element into a percentage value of the corresponding inlet steam quantity, a second device connected to the first device for converting the percentage value of the inlet steam quantity into a percentage value of the turbine power, and a display device connected to the first and second devices. The display device has a screen on which a particular operating point determined by the relative inlet steam quantity and the relative turbine power can be displayed in a performance graph for various extraction steam quantities.

摘要翻译： 一种用于监测蒸汽涡轮机的运行状态的方法，可以向其提供可调节的进口蒸汽量并且可以从其中提取可变的部分膨胀的蒸汽量，其包括首先确定用于可调入口蒸汽量的相对入口蒸汽量 作为百分比值，并且从相对入口蒸汽量确定相对涡轮机功率作为百分比值; 以及从所述相对入口蒸汽量和所述相对涡轮机功率确定适用的操作点，并且随后在适用于各种提取蒸汽量的性能图表中显示适用的操作点。 一种用于监测蒸汽涡轮机的运行状况的装置，包括用于调节入口蒸汽量的最终控制元件，连接到最终控制元件的第一装置，用于将最终控制元件的位置信号转换成相应入口的百分比值 蒸汽量，连接到第一装置的第二装置，用于将入口蒸汽量的百分比值转换为涡轮机功率的百分比值;以及连接到第一和第二装置的显示装置。 显示装置具有可以在各种抽取蒸汽量的性能图中显示由相对入口蒸汽量和相对涡轮机功率确定的特定工作点的屏幕。

公开(公告)号：US4825657A

公开(公告)日：1989-05-02

申请号：US149316

申请日：1988-01-28

申请人： George J. Silvestri, Jr. ,  Paul W. Viscovich

发明人： George J. Silvestri, Jr. ,  Paul W. Viscovich

IPC分类号： F01K7/22 ,  F01K3/26 ,  F01K7/40 ,  F01K7/42 ,  F22G1/00 ,  F22G3/00 ,  F01K7/38

CPC分类号： F01K7/40 ,  F01K3/262

摘要： An improved method of heating feedwater streams in a steam-to-steam reheating system for turbine generators is disclosed in which a drain cooler is located to receive the reheater drain and pass it in heat exchange relationship with the discharge of the highest pressure feedwater heater. By use of the drain cooler, heat rate improvement is effected on both single stage reheat plants and two-stage reheat plants. Cycle impairment from moisture carryover in the moisture separator/reheater is also reduced.

摘要翻译： 公开了一种在用于涡轮发电机的蒸汽 - 蒸汽再加热系统中加热给水流的改进方法，其中排水冷却器被定位成接收再热器排放并使其与最高压力给水加热器的排放处于热交换关系。 通过使用排水冷却器，对单级再热装置和两级再热装置进行热量提高。 湿气分离器/再热器中水分携带的循环障碍也减少了。

公开(公告)号：US4604867A

公开(公告)日：1986-08-12

申请号：US705906

申请日：1985-02-26

申请人： Alexander I. Kalina

发明人： Alexander I. Kalina

IPC分类号： F01K3/26 ,  F01K7/22 ,  F01K25/00 ,  F01K25/06 ,  F01K25/10 ,  F01K7/38

CPC分类号： F01K25/065 ,  F01K3/262 ,  F01K7/22

摘要： A method and apparatus for implementing a thermodynamic cycle with intercooling, includes a condensing subsystem, a boiler, and a turbine. The boiler may include a preheater, an evaporator, and a superheater. After initial expansion in the turbine, the fluid may be diverted to a reheater to increase the temperature available for superheating. After return to the turbine and additional expansion, the fluid may be withdrawn from the turbine and cooled in an intercooler. Thereafter the fluid is returned to the turbine for additional expansion. The cooling of the turbine gas may provide additional heat for evaporation. Intercooling may provide compensation for the heat used in reheating and may provide recuperation of available heat which would otherwise remain unused following final turbine expansion.

摘要翻译： 一种用于实现具有中间冷却的热力循环的方法和装置，包括冷凝子系统，锅炉和涡轮机。 锅炉可以包括预热器，蒸发器和过热器。 在涡轮机初始膨胀后，流体可以转移到再热器中，以增加可用于过热的温度。 在返回涡轮机和额外的膨胀之后，流体可以从涡轮机中取出并在中间冷却器中冷却。 此后，流体返回到涡轮机以进行额外的膨胀。 涡轮机气体的冷却可以为蒸发提供额外的热量。 中间冷却可以为再加热中使用的热量提供补偿，并且可以提供可用热量的回收，否则在最终的涡轮机膨胀之后将保持未使用的热量。

公开(公告)号：US4407131A

公开(公告)日：1983-10-04

申请号：US177680

申请日：1980-08-13

申请人： William H. Wilkinson

发明人： William H. Wilkinson

IPC分类号： F01K7/38 ,  F01K17/00 ,  F25B15/12 ,  F01K17/06

CPC分类号： F25B15/12 ,  F01K17/005 ,  Y02B30/625 ,  Y02E20/14

摘要： A system is provided which improves the ability of cogeneration facilities to meet varying electrical power and process steam demands. One or more thermal boosting systems each having a Rankine cycle evaporator coupled with a solution heat pump cycle is integrated with the turbines of the cogeneration facility to maintain full steam flow through the turbines and provide a portion of the process steam demands on the facility. Optionally, a bottoming turbine is added to the system to further improve its flexibility to meet varying demands.

摘要翻译： 提供一个系统，提高热电联产设施满足不同电力和处理蒸汽需求的能力。 一个或多个每个具有与解决方案热泵循环耦合的兰金循环蒸发器的热增压系统与热电联产设备的涡轮机一体化，以保持全部蒸汽流过涡轮机并且在设施上提供一部分过程蒸汽需求。 可选地，将底部涡轮机添加到系统中以进一步提高其灵活性以满足不同的需求。

公开(公告)号：US4328675A

公开(公告)日：1982-05-11

申请号：US84195

申请日：1979-10-12

申请人： Anton Pocrnja ,  Alfred Bolkart ,  Josef Dworschak

发明人： Anton Pocrnja ,  Alfred Bolkart ,  Josef Dworschak

IPC分类号： F01K7/22 ,  F01K7/38 ,  F01K17/02 ,  F01K13/00

CPC分类号： F01K7/22 ,  F01K17/02

摘要： A method of obtaining work (e.g. electrical energy) in a counterpressure steam system in which the steam is expanded to produce work, e.g. drive an electrical current generator, in which the steam, prior to the expansion, is passed into isobaric heat exchange at an elevated pressure with expanded steam and is then heated substantially isobarically by externally supplied heat. After expansion and at a relatively low pressure, the steam is substantially isobarically cooled.

摘要翻译： 在反压蒸汽系统中获得工作（例如电能）的方法，其中蒸汽膨胀以产生工作，例如， 驱动电流发生器，其中在膨胀之前，蒸汽在膨胀的蒸汽下以升高的压力进入等压热交换，然后通过外部供应的热量基本上等量地加热。 在膨胀之后并且在相对低的压力下，蒸汽基本上等间冷却。