Steam cooled gas turbine system with regenerative heat exchange

    公开(公告)号:US06530208B1

    公开(公告)日:2003-03-11

    申请号:US09865616

    申请日:2001-05-29

    IPC分类号: F02C600

    摘要: A combined cycle system includes a gas turbine (8) having a generator (1), a compressor (2), a combustor (3), a blade cooling air cooler (4), a fan (5), and a turbine (6); a steam turbine (29) having a high pressure turbine (21), an intermediate pressure turbine (22), and a low pressure turbine (23); and a waste heat recovery boiler (9). Saturated water from a high pressure pump (27) is partially led into a heat exchanger (110) for cooling steam to be supplied into a moving blade (52) and a stationary blade (53). Also, outlet steam from the high pressure turbine (21) is led into the moving blade (52), the stationary blade (53), and the combustor transition piece (54) for cooling thereof, and the steam is then supplied to an inlet of the intermediate pressure turbine (22). Further, the outlet steam from the high pressure turbine (21) is led into the turbine (6) for cooling blades thereof. The steam used for cooling the stationary blade is supplied to the inlet of the intermediate pressure turbine (22), and the steam used for cooling the moving blade is supplied to a reheater (20). Thus, the efficiency is enhanced.

    Steam cooled gas turbine system with regenerative heat exchange

    公开(公告)号:US06668538B2

    公开(公告)日:2003-12-30

    申请号:US10278821

    申请日:2002-10-24

    IPC分类号: F02C600

    摘要: A combined cycle system includes a gas turbine (8) having a generator (1), a compressor (2), a combustor (3), a blade cooling air cooler (4), a fan (5), and a turbine (6); a steam turbine (29) having a high pressure turbine (21), an intermediate pressure turbine (22), and a low pressure turbine (23); and a waste heat recovery boiler (9). Saturated water from a high pressure pump (27) is partially led into a heat exchanger (110) for cooling steam to be supplied into a moving blade (52) and a stationary blade (53). Also, outlet steam from the high pressure turbine (21) is led into the moving blade (52), the stationary blade (53), and the combustor transition piece (54) for cooling thereof, and the steam is then supplied to an inlet of the intermediate pressure turbine (22). Further, the outlet steam from the high pressure turbine (21) is led into the turbine (6) for cooling blades thereof. The steam used for cooling the stationary blade is supplied to the inlet of the intermediate pressure turbine (22), and the steam used for cooling the moving blade is supplied to a reheater (20). Thus, the efficiency is enhanced.

    Combined cycle gas turbine system

    公开(公告)号:US06679047B1

    公开(公告)日:2004-01-20

    申请号:US09963509

    申请日:2001-09-27

    IPC分类号: F02C618

    摘要: A combined cycle gas turbine system is improved to enhance a gas turbine efficiency and a combined efficiency by effecting steam-cooling of a combustor transition piece and a turbine blade. The combined cycle system has a gas turbine (8) having a generator (1), a compressor (2), a combustor (3), a blade cooling air cooler (4) and a turbine (6), a steam turbine (29) having a high pressure turbine (21), an intermediate pressure turbine (22) and a low pressure turbine (23), and a waste heat recovery boiler (9). Saturated water of a high pressure pump (27) is partially led into a demineralizer (118) and a water sprayer (116) for cooling steam to be supplied into a moving blade (52). The steam, after being used for cooling, is recovered into a reheater (20). Outlet steam of the high pressure turbine (21) is led into a stationary blade (53) for cooling thereof and the steam is then recovered into an inlet of the intermediate pressure turbine (22). Also, steam of an intermediate pressure superheater (16) is led into a combustor transition piece (54) for cooling thereof and the steam is recovered into the inlet of the intermediate pressure turbine (22). Thus, moving blade cooling steam is reduced and the combined efficiency is enhanced.

    Combined cycle power plant
    5.
    发明授权

    公开(公告)号:US06536205B2

    公开(公告)日:2003-03-25

    申请号:US10096939

    申请日:2002-03-14

    IPC分类号: F02C618

    摘要: Provided is turbine plant using methanol as fuel in which working fluid is compressed by compressor 1 and led into combustor 2. A mixture of H2 and CO2 as fuel added with O2 is burned to generate high temperature gas, which works at high temperature turbine 3, flows through heat exchangers 4, 5 and returns partly to the compressor 1 and enters partly low pressure turbine 7 of bottoming system to work. Condensed water from condenser 9 of the bottoming system is pressurized by pressure pump 10 and flows through the heat exchangers 4, 5 to become high temperature steam and to work at high pressure turbine 6. Exhaust gas thereof is mixed into the combustor 2. A mixture of methanol and water is supplied into reformer 13 to absorb heat from the heat exchanger 4 to be reformed into H2 and CO2, which is supplied into the combustor 2. A high temperature portion of the high temperature turbine 3 is cooled by cooling medium extracted from compressor 1 outlet and high pressure turbine 6 outlet thereby reliability of the high temperature turbine 3 is enhanced.

    Combined cycle power plant and cooling steam supply method for gas turbine therein
    6.
    发明授权
    Combined cycle power plant and cooling steam supply method for gas turbine therein 有权
    燃气轮机组合循环发电厂和冷却蒸汽供应方法

    公开(公告)号:US06438939B1

    公开(公告)日:2002-08-27

    申请号:US09709425

    申请日:2000-11-13

    IPC分类号: F02C600

    摘要: A combined cycle power plant includes a combination of a gas turbine plant and steam turbine plant. The gas turbine cooling steam temperature is adjusted appropriately so that the gas turbine can be made of easily obtainable material. Steam supplied from the intermediate pressure evaporator is mixed into the cooling steam supply passage for supplying therethrough exhaust steam from the high pressure steam turbine into the gas turbine high temperature portion as cooling steam. Thus, cooling steam temperature is lowered without lowering of the entire efficiency, and material of less heat resistant ability becomes usable as material forming the gas turbine high temperature portion to be cooled. Thus, design and manufacture of the gas turbine may be satisfied by less expensive and easily obtainable material.

    摘要翻译: 联合循环发电厂包括燃气轮机厂和汽轮机厂的组合。 适当调整燃气轮机冷却水温度,使得燃气轮机可以由容易获得的材料制成。 从中压蒸发器供给的蒸汽被混合到冷却蒸汽供应通道中,用于将来自高压蒸汽轮机的排出蒸汽供给到作为冷却蒸汽的燃气轮机高温部分。 因此,冷却蒸汽温度降低而不降低整体效率,耐热能力差的材料可用作形成要冷却的燃气轮机高温部分的材料。 因此,燃气轮机的设计和制造可以通过较便宜且容易获得的材料来实现。

    Combined cycle power plant with fuel reformer
    7.
    发明授权
    Combined cycle power plant with fuel reformer 失效
    燃料重整器联合循环发电厂

    公开(公告)号:US06260348B1

    公开(公告)日:2001-07-17

    申请号:US09285066

    申请日:1999-04-02

    IPC分类号: F02C618

    摘要: Provided is turbine plant using methanol as fuel in which working fluid is compressed by compressor 1 and led into combustor 2. A mixture of H2 and CO2 as fuel added with O2 is burned to generate high temperature gas, which works at high temperature turbine 3, flows through heat exchangers 4, 5 and returns partly to the compressor 1 and enters partly low pressure turbine 7 of bottoming system to work. Condensed water from condenser 9 of the bottoming system is pressurized by pressure pump 10 and flows through the heat exchangers 4, 5 to become high temperature steam and to work at high pressure turbine 6. Exhaust gas thereof is mixed into the combustor 2. A mixture of methanol and water is supplied into reformer 13 to absorb heat from the heat exchanger 4 to be reformed into H2 and CO2, which is supplied into the combustor 2. A high temperature portion of the high temperature turbine 3 is cooled by cooling medium extracted from compressor 1 outlet and high pressure turbine 6 outlet thereby reliability of the high temperature turbine 3 is enhanced.

    摘要翻译: 提供了使用甲醇作为燃料的涡轮机组,其中工作流体被压缩机1压缩并被引导到燃烧器2中。作为添加有O2的燃料的H 2和CO 2的混合物被燃烧以产生在高温涡轮机3工作的高温气体, 流过热交换器4,5,并部分返回到压缩机1并进入底部系统的部分低压涡轮机7工作。 底部系统的冷凝器9的冷凝水由压力泵10加压,流过热交换器4,5,成为高温蒸汽,并在高压汽轮机6工作。其废气混入燃烧器2中。混合物 的甲醇和水被供给到重整器13中以从热交换器4吸收热量,以将其重新形成为供应到燃烧器2中的H 2和CO 2。高温涡轮3的高温部分由从 压缩机1出口和高压涡轮机6出口,从而提高高温涡轮机3的可靠性。

    Cooling steam system for steam cooled gas turbine
    8.
    发明授权
    Cooling steam system for steam cooled gas turbine 失效
    蒸汽冷却燃气轮机的冷却蒸汽系统

    公开(公告)号:US5979156A

    公开(公告)日:1999-11-09

    申请号:US030204

    申请日:1998-02-25

    摘要: A cooling steam system for a steam cooled gas turbine is configured such that a main stream of exhaust from a high pressure turbine is branched from a line leading to a reheater, and supplied as cooling steam for a high temperature moving blade and a high temperature stationary blade of the gas turbine, and the cooling steam is then recovered into an inlet area or an intermediate area of the reheater; whereby the bottoming side and the steam cooled side can be operated under preferred conditions without adverse influence on the bottoming side.

    摘要翻译: 用于蒸汽冷却燃气轮机的冷却蒸汽系统构造成使得来自高压涡轮机的主排气从通向再热器的管线分支,并作为用于高温移动叶片和高温静止状态的冷却蒸汽 燃气轮机的叶片,然后将冷却蒸汽回收到再热器的入口区域或中间区域中; 从而底部侧和蒸汽冷却侧可以在优选条件下操作,而不会对底面产生不利影响。

    Hydrogen-oxygen combustion turbine plant
    10.
    发明授权
    Hydrogen-oxygen combustion turbine plant 失效
    氢氧燃气轮机厂

    公开(公告)号:US5809768A

    公开(公告)日:1998-09-22

    申请号:US833690

    申请日:1997-04-08

    摘要: A hydrogen-oxygen combustion turbine plant having an improved thermal efficiency and capable of being designed in a flexible manner. The plant is constructed as follows. A compressor is divided into a plurality of units (1A and 1B), a water injection device (14) is disposed between the compressor units, and exhaust water from a condenser (10) of a second turbine (6) is utilized as a water supply. A gas turbine is also divided into a plurality of units (3A to 3C) with multiple axes. Further, not only extracted steam (9A and 9B) from the compressors (1A and 1B) but also the extracted steam (12A and 12B) from the second turbine (6) and the extracted steam (13A and 13B) from the exhaust of the third turbine (8) are used as cooled steam for gas turbines (3A to 3C) and the combustion chamber (2).

    摘要翻译: 一种具有改善热效率并能灵活设计的氢氧燃烧涡轮机组。 该植物的构造如下。 压缩机被分成多个单元(1A和1B),在压缩机单元之间设置注水装置(14),并且将来自第二涡轮(6)的冷凝器(10)的废水用作水 供应。 燃气轮机也被分成具有多个轴的多个单元(3A至3C)。 此外,不仅从压缩机(1A和1B)提取蒸汽(9A和9B),而且从第二涡轮机(6)提取的蒸汽(12A和12B)和提取的蒸汽(13A和13B) 第三涡轮(8)用作燃气轮机(3A至3C)和燃烧室(2)的冷却蒸汽。