Combined cycle power generating plant and method of supplying cooling steam for gas turbine in same
    2.
    发明授权
    Combined cycle power generating plant and method of supplying cooling steam for gas turbine in same 有权
    联合循环发电厂及其燃气轮机冷却蒸汽供应方法

    公开(公告)号:US06205762B1

    公开(公告)日:2001-03-27

    申请号:US09202452

    申请日:1998-12-15

    IPC分类号: F02G300

    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 and cooling steam supply method for gas turbine therein
    3.
    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 steam cooled gas turbine
    4.
    发明授权
    Combined cycle power plant with steam cooled gas turbine 失效
    具有蒸汽冷却燃气轮机的联合循环发电厂

    公开(公告)号:US6116017A

    公开(公告)日:2000-09-12

    申请号:US31888

    申请日:1998-02-27

    摘要: In a combined cycle power plant, exhaust from a high pressure turbine is branched so that part of it is supplied to a steam cooling system, and the other part of it is supplied to an inlet of a reheater of an exhaust heat recovery boiler. The exhaust supplied to the steam cooling system performs predetermined cooling and becomes heated. Then, the heated exhaust is guided from an outlet of the steam cooling system to an intermediate position of the reheater, merged with the exhaust supplied to the inlet of the reheater, and temperature-adjusted in the reheater. Then, the reheated, combined steam is supplied to a downstream turbine for heat recovery. Thus, a safe, reliable steam cooling system is achieved by effectively using a sufficient amount of high pressure turbine exhaust.

    摘要翻译: 在联合循环发电厂中,来自高压涡轮机的排气被分支,使得其一部分被供应到蒸汽冷却系统,并且其另一部分被供应到废热回收锅炉的再热器的入口。 提供给蒸汽冷却系统的排气进行预定的冷却并加热。 然后,将加热的废气从蒸汽冷却系统的出口引导到再热器的中间位置,并与供给到再热器入口的排气合并,并在再热器中进行温度调节。 然后,将再加热的组合蒸汽供应到下游涡轮机进行热回收。 因此,通过有效地使用足够量的高压汽轮机排气来实现安全可靠的蒸汽冷却系统。

    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 power plant
    7.
    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.

    Hydrogen-oxygen combustion turbine plant
    9.
    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。

    Gas turbine combined cycle system
    10.
    发明授权
    Gas turbine combined cycle system 有权
    燃气轮机联合循环系统

    公开(公告)号:US06389797B1

    公开(公告)日:2002-05-21

    申请号:US09697136

    申请日:2000-10-27

    IPC分类号: F02C600

    摘要: Gas turbine combined cycle system is improved to enhance gas turbine efficiency and combined efficiency by effecting steam-cooling of combustor tail tube and turbine blades. In the combined cycle system comprising; gas turbine (8) having generator (1), compressor (2), combustor (3), blade cooling air cooler (4), fan (5) and turbine (6); steam turbine (29) having high pressure turbine (21), intermediate pressure turbine (22) and low pressure turbine (23); and waste heat recovery boiler (9), saturated water of intermediate pressure economizer (12) is partially led into fuel heater (30) for heating fuel and the water cooled thereby is supplied to feed water heater (10). Steam of intermediate pressure superheater (16) is led into the combustor tail tube for cooling thereof and the steam is then supplied to inlet of the intermediate pressure turbine (22). Steam of outlet of the high pressure turbine (21) is led into the turbine (6) for cooling blades thereof and the steam used for cooling stationary blades is supplied to the inlet of the intermediate pressure turbine (22) and the steam used for cooling moving blades is supplied to reheater (20). Thus, the efficiency is enhanced.

    摘要翻译: 改进了燃气轮机联合循环系统,通过对燃烧器尾管和涡轮叶片进行蒸汽冷却来提高燃气轮机的效率和综合效率。 在组合循环系统中,包括: 具有发电机(1),压缩机(2),燃烧器(3),叶片冷却空气冷却器(4),风扇(5)和涡轮机(6)的燃气轮机(8) 具有高压涡轮机(21),中压涡轮机(22)和低压涡轮机(23)的汽轮机(29); 和余热回收锅炉(9),将中压节能器(12)的饱和水部分地引入用于加热燃料的燃料加热器(30)中,并且将由此冷却的水供应给给水加热器(10)。 中压过热器(16)的蒸汽被引入燃烧器尾管中以进行冷却,然后将蒸汽供应到中压涡轮(22)的入口。 高压涡轮机(21)的出口蒸汽被引入到涡轮机(6)中,用于冷却叶片,用于冷却静止叶片的蒸汽被供应到中压涡轮机(22)的入口和用于冷却的蒸汽 活动叶片被供应到再热器(20)。 因此,提高效率。