公开(公告)号：US20130227958A1

公开(公告)日：2013-09-05

申请号：US13863557

申请日：2013-04-16

Applicant: ALSTOM TECHNOLOGY LTD

Inventor： Francois Droux ,  Dario Ugo Breschi ,  Karl Reyser ,  Stefan Rofka ,  Johannes Wick

IPC: F01K23/02

CPC classification number: F01K23/02 ,  F01K17/04 ,  F01K23/103 ,  Y02E20/14 ,  Y02E20/16 ,  Y02P80/15

Abstract: The invention relates to a method for operating a combined-cycle power plant with cogeneration, in which method combustion air is inducted in at least one gas turbine, is compressed and is fed to at least one combustion chamber for combustion of a fuel, and the resultant exhaust gas is expanded in at least one turbine producing work, and in which method the exhaust gas which emerges from the at least one turbine is fed through a heat recovery steam generator in order to generate steam, which heat recovery steam generator is part of a water-steam circuit with at least one steam turbine, a condenser, a feedwater tank and a feedwater pump, wherein heat is produced by extraction of steam from the at least one steam turbine. In a method such as this, simple decoupling of heat and electricity production, which is advantageous for operation, is achieved in that the steam can be selectively extracted from the at least one steam turbine as low-pressure steam or intermediate-pressure steam, and in that the steam extraction is switched from low-pressure steam to intermediate-pressure steam in order to restrict the electricity production.

Abstract translation: 本发明涉及一种用于操作具有热电联产的联合循环发电厂的方法，其中在至少一个燃气轮机中引入燃烧空气的方法被压缩并被供给至少一个用于燃料燃烧的燃烧室， 所产生的废气在至少一个涡轮机生产工作中膨胀，并且在该方法中，从至少一个涡轮机排出的废气通过热回收蒸汽发生器供给以产生蒸汽，该热回收蒸汽发生器是 具有至少一个蒸汽轮机的水蒸汽回路，冷凝器，给水箱和给水泵，其中通过从所述至少一个蒸汽涡轮机抽取蒸汽来产生热量。 在这样的方法中，实现了有利于操作的热和电产生的简单解耦，其中，蒸汽可以作为低压蒸汽或中压蒸汽从至少一个蒸汽轮机选择性地提取，以及 因为蒸汽提取从低压蒸汽切换到中压蒸汽，以限制电力生产。

公开(公告)号：US09677764B2

公开(公告)日：2017-06-13

申请号：US14189206

申请日：2014-02-25

Applicant: ALSTOM Technology Ltd

Inventor： Klaus Knapp ,  Peter Marx ,  Karl Reyser ,  Maria-Belen Gasser-Pagani

IPC: F02C9/40 ,  F23N1/00 ,  F02C7/224 ,  F02C9/00

CPC classification number: F23N1/002 ,  F02C7/224 ,  F02C9/00 ,  F02C9/40 ,  F05D2260/80 ,  Y02E20/16

Abstract: The method for adjusting a natural gas temperature for a fuel supply line of a gas turbine engine includes measuring by infrared analysis the natural gas percentage content of methane (CH4), ethane (C2H6), propane (C3H8), butane (C4H10), carbon dioxide (CO2), calculating the nitrogen (N2) percentage content as the complement to 100 of the measured percentage content of methane (CH4), ethane (C2H6), propane (C3H8), butane (C4H10), carbon dioxide (CO2), calculating an index indicative of the natural gas energy content and adjusting the natural gas temperature on the basis of the index.

公开(公告)号：US08984894B2

公开(公告)日：2015-03-24

申请号：US13863506

申请日：2013-04-16

Applicant: ALSTOM Technology Ltd

Inventor： Francois Droux ,  Dario Ugo Breschi ,  Karl Reyser ,  Stefan Rofka ,  Johannes Wick

IPC: F02C9/18 ,  F02C6/08 ,  F02C6/18 ,  F01K23/10 ,  C02F1/16 ,  F01K17/04 ,  F02C6/04 ,  F02C6/10 ,  B01D1/26 ,  C02F1/04 ,  C02F103/08

CPC classification number: F01K23/101 ,  B01D1/26 ,  C02F1/041 ,  C02F1/16 ,  C02F2103/08 ,  F01K7/165 ,  F01K17/04 ,  F01K23/10 ,  F01K23/103 ,  F01K23/18 ,  F02C6/04 ,  F02C6/10 ,  F02C6/18 ,  Y02E20/14 ,  Y02E20/16 ,  Y02P70/34

Abstract: The invention relates to a method for operation of a combined-cycle power plant with cogeneration, in which method combustion air is inducted in at least one gas turbine, is compressed and is supplied to at least one combustion chamber for combustion of a fuel, and the resultant exhaust gas is expanded in at least one turbine, producing work, and in which method the exhaust gas emerging from the at least one turbine is passed through a heat recovery steam generator in order to generate steam, which generator is part of a water-steam circuit with at least one steam turbine, a condenser, a feedwater tank and a feedwater pump, wherein heat is provided by extracting steam from the at least one steam turbine. In a method such as this, the electricity production is decoupled from the steam production in that in order to restrict the electricity production while the heat provided by means of steam extraction remains at a constant level, a portion of the inducted combustion air is passed through the at least one turbine to the heat recovery steam generator without being involved in the combustion of the fuel in the gas turbine, and in that this portion of the combustion air is used to operate at least one supplementary firing in the heat recovery steam generator.

Abstract translation: 本发明涉及一种具有热电联产循环发电厂的操作方法，其中在至少一个燃气轮机中引入燃烧空气的方法被压缩并供应至至少一个用于燃料燃烧的燃烧室，以及 所生成的废气在至少一个涡轮机中膨胀，产生作业，并且在该方法中，从至少一个涡轮机排出的废气通过热回收蒸汽发生器，以产生蒸汽，该发生器是水的一部分 - 具有至少一个蒸汽轮机的冷凝器回路，冷凝器，给水箱和给水泵，其中通过从所述至少一个蒸汽涡轮机抽取蒸汽来提供热量。 在这样的方法中，电力生产与蒸汽产生分离，因为为了限制电力产生，而通过蒸汽提取提供的热量保持在恒定水平，一部分引入的燃烧空气通过 所述至少一个涡轮机到所述热回收蒸汽发生器而不参与所述燃气轮机中的燃料的燃烧，并且所述燃烧空气的该部分用于在所述热回收蒸汽发生器中操作至少一个辅助点火。

公开(公告)号：US20130269346A1

公开(公告)日：2013-10-17

申请号：US13852485

申请日：2013-03-28

Applicant: ALSTOM Technology Ltd

Inventor： Hongtao Li ,  Francois Droux ,  Christoph Ruchti ,  Karl Reyser

IPC: F01K23/10

CPC classification number: F01K23/10 ,  F01K17/04 ,  F02C6/18 ,  Y02E20/16 ,  Y02E20/326

Abstract: A combined cycle power plant with a gas turbine, steam turbine, and first HRSG comprises a CO2 capture plant for the at least partial capture of CO2 from the exhaust gases from the gas turbine. It comprises in particular a second HRSG or boiler arranged to receive a portion of the exhaust gases and transfer its heat to steam and feedwater. Steam generated in the second HRSG or boiler is used for the operation of the CO2 capture plant and/or to operate a steam turbine that drives a generator and optionally a CO2 compressor. The power plant according to the invention allows for greater flexibility in power plant part load control and power plant efficiency. A method to operate the power plant is also claimed.

Abstract translation: 具有燃气轮机，蒸汽轮机和第一HRSG的联合循环发电厂包括用于从燃气轮机的废气中至少部分捕获CO 2的CO 2捕集设备。 其特别地包括第二HRSG或锅炉，其布置成接收废气的一部分并将其热量传递给蒸汽和给水。 在第二HRSG或锅炉中产生的蒸汽用于二氧化碳捕获设备的运行和/或操作驱动发电机和任选的二氧化碳压缩机的蒸汽轮机。 根据本发明的发电厂允许发电厂部分负载控制和发电厂效率更大的灵活性。 还声称操作发电厂的方法。

公开(公告)号：US20130227957A1

公开(公告)日：2013-09-05

申请号：US13863506

申请日：2013-04-16

Applicant: ALSTOM TECHNOLOGY LTD.

Inventor： Francois Droux ,  Dario Ugo Breschi ,  Karl Reyser ,  Stefan Rofka ,  Johannes Wick

IPC: F01K23/10

CPC classification number: F01K23/101 ,  B01D1/26 ,  C02F1/041 ,  C02F1/16 ,  C02F2103/08 ,  F01K7/165 ,  F01K17/04 ,  F01K23/10 ,  F01K23/103 ,  F01K23/18 ,  F02C6/04 ,  F02C6/10 ,  F02C6/18 ,  Y02E20/14 ,  Y02E20/16 ,  Y02P70/34

Abstract: The invention relates to a method for operation of a combined-cycle power plant with cogeneration, in which method combustion air is inducted in at least one gas turbine, is compressed and is supplied to at least one combustion chamber for combustion of a fuel, and the resultant exhaust gas is expanded in at least one turbine, producing work, and in which method the exhaust gas emerging from the at least one turbine is passed through a heat recovery steam generator in order to generate steam, which generator is part of a water-steam circuit with at least one steam turbine, a condenser, a feedwater tank and a feedwater pump, wherein heat is provided by extracting steam from the at least one steam turbine. In a method such as this, the electricity production is decoupled from the steam production in that in order to restrict the electricity production while the heat provided by means of steam extraction remains at a constant level, a portion of the inducted combustion air is passed through the at least one turbine to the heat recovery steam generator without being involved in the combustion of the fuel in the gas turbine, and in that this portion of the combustion air is used to operate at least one supplementary firing in the heat recovery steam generator.

Abstract translation: 本发明涉及一种具有热电联产循环发电厂的操作方法，其中在至少一个燃气轮机中引入燃烧空气的方法被压缩并供应至至少一个用于燃料燃烧的燃烧室，以及 所生成的废气在至少一个涡轮机中膨胀，产生作业，并且在该方法中，从至少一个涡轮机排出的废气通过热回收蒸汽发生器，以产生蒸汽，该发生器是水的一部分 - 具有至少一个蒸汽轮机的冷凝器回路，冷凝器，给水箱和给水泵，其中通过从所述至少一个蒸汽涡轮机抽取蒸汽来提供热量。 在这样的方法中，电力生产与蒸汽产生分离，因为为了限制电力产生，而通过蒸汽提取提供的热量保持在恒定水平，一部分引入的燃烧空气通过 所述至少一个涡轮机到所述热回收蒸汽发生器而不参与所述燃气轮机中的燃料的燃烧，并且所述燃烧空气的该部分用于在所述热回收蒸汽发生器中操作至少一个辅助点火。