公开(公告)号：WO2016137620A1

公开(公告)日：2016-09-01

申请号：PCT/US2016/014675

申请日：2016-01-25

Applicant: SIEMENS AKTIENGESELLSCHAFT ,  SIEMENS ENERGY, INC.

Inventor： BRIESCH, Michael S. ,  DESHMUKH, Ankur ,  WOLF, Thorsten

IPC: F01K3/26

CPC classification number: F01K23/106 ,  F01K3/26 ,  F01K7/18 ,  F01K7/22 ,  F01K7/32 ,  F01K23/10 ,  F01K23/101 ,  Y02E20/16

Abstract: A combine cycle power plant is presented. The combine cycle power plant includes a gas turbine, a heat recovery steam generator, a main steam turbine and a supercritical steam turbine. The supercritical steam turbine may be operated as a separate steam turbine that may be not a single steam turboset with the main steam turbine. The supercritical steam turbine receives supercritical steam generated in the heat recovery steam generator to produce power output. Exiting steam from the supercritical steam turbine may be routed to the main steam turbine. The supercritical steam turbine may be operated at a rotational speed that is higher than a grid frequency. The rotational speed of the supercritical steam turbine may be reduced to the grid frequency via a gearbox.

Abstract translation: 提出了一个联合循环发电厂。 联合循环发电厂包括燃气轮机，热回收蒸汽发生器，主汽轮机和超临界汽轮机。 超临界汽轮机可以作为单独的蒸汽涡轮机运行，该蒸汽涡轮机可以不是主蒸汽轮机的单一蒸汽涡轮机。 超临界蒸汽轮机接收在热回收蒸汽发生器中产生的超临界蒸汽以产生功率输出。 从超临界汽轮机排出蒸汽可以被送到主蒸汽轮机。 超临界汽轮机可以以高于电网频率的转速操作。 超临界汽轮机的转速可通过变速箱减小到电网频率。

公开(公告)号：WO2016137677A1

公开(公告)日：2016-09-01

申请号：PCT/US2016/016068

申请日：2016-02-02

Applicant: SIEMENS ENERGY, INC.

Inventor： BRIESCH, Michael S. ,  DESHMUKH, Ankur

IPC: F01K23/10

CPC classification number: F01K23/106 ,  F01K3/26 ,  F01K7/18 ,  F01K7/22 ,  F01K7/32 ,  F01K23/10 ,  F01K23/101 ,  Y02E20/16

Abstract: A method for operating a combined cycle power plant (CCPP) and improving a part load operation of the CCPP is provided. The CCPP may include at least a gas turbine, a heat recovery steam generator (HRSG) located downstream of the gas turbine, a main steam turbine, and a supercritical steam turbine. The HRSG may include a low pressure steam system, an intermediate pressure steam system, and a high pressure steam system. To improve the part load efficiency of the CCPP, a base load operation of the CCPP may be initiated with supercritical pressure, via the supercritical steam turbine, such that the efficiency impact resulting from the part load operation is reduced.

Abstract translation: 提供了一种操作联合循环发电厂（CCPP）并改进CCPP部分负载运行的方法。 CCPP可以至少包括燃气轮机，位于燃气轮机下游的热回收蒸汽发生器（HRSG），主汽轮机和超临界汽轮机。 HRSG可以包括低压蒸汽系统，中压蒸汽系统和高压蒸汽系统。 为了提高CCPP的部分负载效率，CCPP的基本负载运行可以通过超临界汽轮机以超临界压力启动，从而降低部分负载运行产生的效率影响。

公开(公告)号：WO2017111932A1

公开(公告)日：2017-06-29

申请号：PCT/US2015/067248

申请日：2015-12-22

Applicant: SIEMENS ENERGY, INC.

Inventor： SELMAN, Uygar O. ,  KALISH, Matthew ,  BOISVERT, Stephanie ,  DESHMUKH, Ankur ,  FIMPEL, Marc ,  RAMAMURTHY, Balaji ,  CANCELADO, Miguel ,  WITTE, Peter ,  ROP, Peter Simon

IPC: F01K23/10 ,  F01K9/00

CPC classification number: F01K23/108 ,  F01K9/00 ,  Y02E20/16

Abstract: A combined cycle power plant and method for operating a combined power plant with stack energy control are presented. The combined cycle power plant includes a gas turbine, a heat recovery steam generator including a plurality of heating surfaces, and a steam turbine. The heating surfaces may be partially bypassed to reduce steam production in the heat recovery steam generator during power plant startup. Less energy may be extracted from exhaust gas of the gas turbine. More energy may be dumped through an exhaust stack. The steam turbine may start without restriction of a gas turbine load during power plant startup. The steam turbine may start without increasing a size of an air cooled condenser while maintaining a higher load of a gas turbine during power plant startup.

Abstract translation: 介绍了一种联合循环发电厂和用于运行具有烟囱能量控制的联合发电厂的方法。 联合循环动力装置包括燃气轮机，包括多个加热表面的热回收蒸汽发生器以及蒸汽轮机。 加热表面可以部分绕过以减少发电厂启动期间热回收蒸汽发生器中的蒸汽产生。 可以从燃气轮机的废气中提取更少的能量。 更多的能量可能通过排气管排出。 在发电厂启动期间，汽轮机可以在不限制燃气轮机负载的情况下启动。 蒸汽涡轮机可以在不增加空冷式冷凝器尺寸的情况下启动，同时在发电厂启动期间保持燃气轮机的更高负载。