公开(公告)号：US10167742B2

公开(公告)日：2019-01-01

申请号：US15306545

申请日：2015-04-16

Applicant: Siemens Aktiengesellschaft

Inventor： Bernd Leu ,  Martin Ophey ,  Klaus Rothe ,  David Veltmann ,  Kai Brune ,  Matthias Heue ,  Rudolf Pötter ,  Michael Schütz

IPC: F01K13/02 ,  F01K7/22 ,  F01K9/04

Abstract: A steam cycle for a power station, and to a method for operating, in particular for starting, a steam cycle. The steam cycle has a high-pressure turbine, a condenser and a steam generator. The steam generator is connected to the high-pressure turbine via a first line. Live steam quick-closing valves and live steam regulating valves for supplying the high-pressure turbine are arranged in the direction of the steam flow between the steam generator and the high-pressure turbine. A starting line is arranged downstream of the high-pressure turbine in the direction of the steam flow, the starting line connecting a waste steam region downstream of the high-pressure turbine with the condenser. At least one regulator regulates a closing of a starting valve for sealing the starting line, and an opening of the live steam valve, depending on the rotational speed, a temperature and load state of the high-pressure turbine.

公开(公告)号：US10036275B2

公开(公告)日：2018-07-31

申请号：US14916378

申请日：2014-09-08

Applicant: Siemens Aktiengesellschaft

Inventor： Martin Ophey ,  Martin Bennauer ,  Thorsten Engler ,  Susanne Haas ,  Andreas Pahl ,  Marian-Peter Pieczyk ,  Martin Stapper ,  David Veltmann

IPC: F01D21/02 ,  F01D21/20 ,  F01D5/02 ,  F01D15/10 ,  F01D15/12 ,  F01K23/12 ,  G01M15/14 ,  F01D21/00

CPC classification number: F01D21/02 ,  F01D5/02 ,  F01D15/10 ,  F01D15/12 ,  F01D21/003 ,  F01K23/12 ,  F05D2220/31 ,  F05D2220/32 ,  F05D2220/76 ,  F05D2240/60 ,  F05D2260/83 ,  G01M15/14

Abstract: A method for testing an overspeed protection apparatus of a single-shaft system that includes: a) operating the system at nominal speed and under electrical load, wherein the load is selected to be low enough that, after dropping the load, the speed of the system rises such that the speed remains below steam turbine threshold speed lower than gas turbine threshold speed, such that first overspeed protection is triggered when the speed of the steam turbine reaches the steam turbine threshold speed, and second overspeed protection is triggered when the speed of the gas turbine reaches the gas turbine threshold speed; b) dropping the load; c) increasing the mass flow of the steam introduced into the steam turbine and/or of the fuel introduced into the gas turbine such that the speed of the steam turbine reaches the steam turbine threshold speed; d) testing whether the first overspeed protection is triggered.

公开(公告)号：US11008895B2

公开(公告)日：2021-05-18

申请号：US16647248

申请日：2018-08-22

Applicant: Siemens Aktiengesellschaft

Inventor： Martin Bennauer ,  Marc Borowski ,  Christoph Schindler ,  David Veltmann ,  Michael Winkel

IPC: F01K7/08 ,  F01K7/24

Abstract: A method for operating a steam turbine where steam turbine has at least two sub-turbines, wherein the steam turbine is paired with a steam turbine controller which has a sub-turbine controller for each of the sub-turbines, and each sub-turbine controller compares respective target values with respective actual values of the respective sub-turbine during operation in order to determine a respective control deviation for each sub-turbine.

公开(公告)号：US20160201501A1

公开(公告)日：2016-07-14

申请号：US14916378

申请日：2014-09-08

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： Martin Ophey ,  Martin Bennauer ,  Thorsten Engler ,  Susanne Haas ,  Andreas Pahl ,  Marian-Peter Pieczyk ,  Martin Stapper ,  David Veltmann

IPC: F01D21/00 ,  F01D15/10 ,  F01K23/12 ,  F01D15/12 ,  F01D21/02 ,  G01M15/14 ,  F01D5/02

CPC classification number: F01D21/02 ,  F01D5/02 ,  F01D15/10 ,  F01D15/12 ,  F01D21/003 ,  F01K23/12 ,  F05D2220/31 ,  F05D2220/32 ,  F05D2220/76 ,  F05D2240/60 ,  F05D2260/83 ,  G01M15/14

Abstract: A method for testing an overspeed protection apparatus of a single-shaft system that includes: a) operating the system at nominal speed and under electrical load, wherein the load is selected to be low enough that, after dropping the load, the speed of the system rises such that the speed remains below steam turbine threshold speed lower than gas turbine threshold speed, such that first overspeed protection is triggered when the speed of the steam turbine reaches the steam turbine threshold speed, and second overspeed protection is triggered when the speed of the gas turbine reaches the gas turbine threshold speed; b) dropping the load; c) increasing the mass flow of the steam introduced into the steam turbine and/or of the fuel introduced into the gas turbine such that the speed of the steam turbine reaches the steam turbine threshold speed; d) testing whether the first overspeed protection is triggered.

Abstract translation: 一种用于测试单轴系统的超速保护装置的方法，其包括：a）以标称速度和电负载操作所述系统，其中所述负载被选择为足够低，使得在所述负载下降之后， 系统升高，使得速度保持低于汽轮机阈值速度低于燃气轮机阈值速度，使得当蒸汽轮机的速度达到蒸汽涡轮机阈值速度时触发第一超速保护，并且当速度为 燃气轮机达到燃气轮机阈值速度; b）放下负载; c）增加引入到蒸汽轮机和/或引入燃气涡轮机的燃料的蒸汽的质量流量，使得蒸汽轮机的速度达到蒸汽涡轮机的阈值速度; d）测试是否触发第一超速保护。

公开(公告)号：US20200256217A1

公开(公告)日：2020-08-13

申请号：US16647248

申请日：2018-08-22

Applicant: Siemens Aktiengesellschaft

Inventor： Martin Bennauer ,  Marc Borowski ,  Christoph Schindler ,  David Veltmann ,  Michael Winkel

IPC: F01K7/08 ,  F01K7/24

Abstract: A method for operating a steam turbine where steam turbine has at least two sub-turbines, wherein the steam turbine is paired with a steam turbine controller which has a sub-turbine controller for each of the sub-turbines, and each sub-turbine controller compares respective target values with respective actual values of the respective sub-turbine during operation in order to determine a respective control deviation for each sub-turbine.

公开(公告)号：US20170183977A1

公开(公告)日：2017-06-29

申请号：US15312697

申请日：2015-03-31

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： Kai Brune ,  Stefan Brußk ,  Nigel-Philip Cox ,  Daniel Dreier ,  Tobias Gabl-Zimmek ,  Andrei Ghicov ,  Marie Hu ,  Mario Koebe ,  Marc Lange ,  Teresa Pott ,  Stefan Riemann ,  Andreas Ulma ,  David Veltmann ,  Gerta Zimmer

IPC: F01D25/00 ,  F01K13/02

CPC classification number: F01D25/007 ,  F01D11/04 ,  F01D21/00 ,  F01K13/02 ,  F02C7/30 ,  F05D2220/31 ,  F05D2260/608 ,  F05D2260/95

Abstract: A steam turbine system including a steam turbine which has a turbine housing and at least one turbine shaft accommodated in the turbine housing and sealed by seals, a condenser connected fluidically to the steam turbine, an evacuation unit connected fluidically to the condenser, and a dry air source which is connected fluidically to the steam turbine, wherein the steam turbine system is designed in such a way that the evacuation unit is optionally fluidically connectable to the dry air source. A method for preserving components of a steam turbine system to prevent idle-state corrosion is also provided, which the steps: shutting down a steam turbine of the steam turbine system and sucking dry air into the steam turbine using an evacuation unit which additionally functions during intended operation of the steam turbine to exhaust a resulting amount of gas into a condenser.

公开(公告)号：US11047263B2

公开(公告)日：2021-06-29

申请号：US16647248

申请日：2018-08-22

Applicant: Siemens Aktiengesellschaft

Inventor： Martin Bennauer ,  Marc Borowski ,  Christoph Schindler ,  David Veltmann ,  Michael Winkel

IPC: F01K7/08 ,  F01K7/24

Abstract: A method for operating a steam turbine where steam turbine has at least two sub-turbines, wherein the steam turbine is paired with a steam turbine controller which has a sub-turbine controller for each of the sub-turbines, and each sub-turbine controller compares respective target values with respective actual values of the respective sub-turbine during operation in order to determine a respective control deviation for each sub-turbine.

公开(公告)号：US20190113085A1

公开(公告)日：2019-04-18

申请号：US16089605

申请日：2017-03-15

Applicant: Siemens Aktiengesellschaft

Inventor： David Veltmann ,  Martin Bennauer ,  Christoph Schindler

IPC: F16D23/10 ,  F01D13/00 ,  F02C6/02 ,  F02C7/277 ,  F02B37/11 ,  F16D23/04

Abstract: A turbomachine train with two shaft parts which each have a fixedly attached grooved wheel, with a first overrunning clutch, with two rotational speed sensors and with a control device. The clutch is designed to couple and decouple the first shaft part to and from the second shaft part. The first rotational speed sensor measures the rotational speed of the first grooved wheel. The second rotational speed sensor measures the rotational speed of the second grooved wheel. The control device determines the differential angle between the first shaft part and the second shaft part and accelerates the turbomachines, with an acceleration value determined on the basis of the measured rotational speeds and on the basis of the differential angle, such that the two shaft parts couple together at a predetermined target coupling angle.

公开(公告)号：US20170276432A1

公开(公告)日：2017-09-28

申请号：US15503702

申请日：2015-08-19

Applicant: Siemens Aktiengesellschaft

Inventor： Kai Brune ,  Stefan Brussk ,  Nigel-Philip Cox ,  Daniel Dreier ,  Tobias Gabl-Zimmek ,  Andrei Ghicov ,  Marie Hu ,  Mario Koebe ,  Marc Lange ,  Teresa Pott ,  Stefan Riemann ,  Andreas Ulma ,  David Veltmann ,  Gerta Zimmer

IPC: F28B9/00 ,  F28F19/00 ,  F28B9/08

CPC classification number: F28B9/00 ,  F01K9/00 ,  F01K11/00 ,  F28B9/08 ,  F28F19/002

Abstract: A method for operating a condenser, wherein the condenser is designed for condensing water vapor to form water and during operation a condensate having water accumulates in the condenser, wherein on the condensate surface a plurality of floating bodies are arranged on the condensate, wherein the floating bodies float on the condensate, wherein a large number of floating bodies are used in such a way that the condensate surface is covered, wherein the floating bodies are of spherical and/or sphere-like design, and wherein floating bodies with different sizes are used.

公开(公告)号：US20170044935A1

公开(公告)日：2017-02-16

申请号：US15306545

申请日：2015-04-16

Applicant: Siemens Aktiengesellschaft

Inventor： Bernd Leu ,  Martin Ophey ,  Klaus Rothe ,  David Veltmann ,  Kai Brune ,  Matthias Heue ,  Rudolf Pötter ,  Michael Schütz

IPC: F01K13/02

CPC classification number: F01K13/02 ,  F01K7/22 ,  F01K9/04

Abstract: A steam cycle for a power station, and to a method for operating, in particular for starting, a steam cycle. The steam cycle has a high-pressure turbine, a condenser and a steam generator. The steam generator is connected to the high-pressure turbine via a first line. Live steam quick-closing valves and live steam regulating valves for supplying the high-pressure turbine are arranged in the direction of the steam flow between the steam generator and the high-pressure turbine. A starting line is arranged downstream of the high-pressure turbine in the direction of the steam flow, the starting line connecting a waste steam region downstream of the high-pressure turbine with the condenser. At least one regulator regulates a closing of a starting valve for sealing the starting line, and an opening of the live steam valve, depending on the rotational speed, a temperature and load state of the high-pressure turbine.

Abstract translation: 用于电站的蒸汽循环，以及用于操作，特别是用于启动蒸汽循环的方法。 蒸汽循环具有高压涡轮机，冷凝器和蒸汽发生器。 蒸汽发生器通过第一线连接到高压涡轮。 用于供给高压汽轮机的活蒸汽快关阀和活蒸汽调节阀沿蒸汽发生器和高压汽轮机之间的蒸汽流动方向排列。 在高压涡轮机的下游，在蒸汽流的方向上设置起始线，起始线将高压涡轮机下游的废蒸汽区域与冷凝器连接。 至少一个调节器根据转速，高压汽轮机的温度和负载状态来调节用于密封起动线的起动阀的关闭和活蒸汽阀的打开。