CN101725382A - 联合循环发电设备 - Google Patents
联合循环发电设备 Download PDFInfo
- Publication number
- CN101725382A CN101725382A CN200910207614.6A CN200910207614A CN101725382A CN 101725382 A CN101725382 A CN 101725382A CN 200910207614 A CN200910207614 A CN 200910207614A CN 101725382 A CN101725382 A CN 101725382A
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- heat
- power plant
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- cycle power
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- 238000011084 recovery Methods 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/12—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engines being mechanically coupled
- F01K23/16—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engines being mechanically coupled all the engines being turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/70—Application in combination with
- F05D2220/72—Application in combination with a steam turbine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/208—Heat transfer, e.g. cooling using heat pipes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
本发明涉及一种联合循环发电设备(10),其包括燃气轮机(12)、蒸汽轮机(18)、以及余热回收发生器(24),该余热回收发生器(24)用于以热的方式连接燃气轮机(12)和蒸汽轮机(18)。余热回收蒸汽发生器(24)具有用于接收来自燃气轮机(12)的热排气(32)的管道(28)。余热回收蒸汽发生器(24)还与用于接收给水(36)以便加热成蒸汽的加热***(34)相关联。具有设置在管道(28)内的第一端(29)的热管(30)运行以从其中移除热量。设置在加热***(34)内的热管(30)的第二端(31)运行以将热量传递给给水(36)。
Description
技术领域
本文所公开的主题涉及一种联合循环发电设备(combinedcycle power plant),并且更具体地说,涉及一种用于提高输出和效率的热回收***。
背景技术
联合循环发电设备以联合的方式利用燃气轮机和蒸汽轮机来发电。该发电设备布置成使得燃气轮机通过诸如余热回收蒸汽发生器(“HRSG”)的热回收***以热的方式连接至蒸汽轮机。HRSG是允许用于蒸汽发生过程的给水由热的燃气轮机排气来加热的热交换器。HRSG实质上是具有设置在其中的填充有水的管束的大型管道。给水循环通过该管束,使得当排气穿过管道且越过管束时,水被加热成蒸汽。联合循环布置的主效率是否则会“被浪费的”燃气轮机排气热量的利用率。HRSG的效率直接涉及热的涡轮排气(热侧)和管束中的给水及蒸汽(冷侧)之间的传热效率。已知的是利用流动肋片来协助从热的涡轮排气到管束中的给水的传热速率,但是,总传热受冷侧表面区域以及管内的表面区域条件所限制。
因此,所期望的是提供一种通过改进HRSG中的传热而具有增加的效率的联合循环发电设备。
发明内容
在本发明的一个实施例中,联合循环发电设备包括用于回收来自热排气流的热量的热回收***。该热回收***包括置于其中的热管。该热管将热量从热回收***内传递到与其相关联的加热***,在该加热***中,给水绕着热管的外部循环,使得水被加热成蒸汽。
附图说明
在下文结合附图的详细描述中,更具体地描述了依照优选的和示范性的实施例的本发明及其另外的对象和优点,其中:
图1是实施了本发明的联合循环发电设备的示意图;及
图2是图1的联合循环发电设备的加热***的示意图。
部件列表:
10联合循环发电设备
12燃气轮机***
14燃烧***
16涡轮
18蒸汽轮机***
20发电机
22单个轴
24余热回收蒸汽发生器(“HRSG”)
26壁部
28排气流管道
29热管,第一端
30热管
31热管,第二端
32高温排气
34加热***
36给水
38蒸发器
40过热器
42冷凝器
44导管
46给水泵
48回流导管
50冷侧表面区域
具体实施方式
现在参看附图,其中,贯穿所有视图,相同的数字表示相同的元件,图1和图2显示了联合循环发电设备10。发电设备10包括带有燃烧***14和涡轮16的燃气轮机***12。发电设备10还包括蒸汽轮机***18。该蒸汽轮机***18驱动产生电力的发电机20。燃气轮机***12、蒸汽轮机***18及发电机20可布置在单个轴22上。可使用诸如多个轴的其它构造。
燃气轮机***12和蒸汽轮机***18与余热回收蒸汽发生器(“HRSG”)24相关联。HRSG24是具有由壁部26所限定的排气流管道28的热交换器。加热***34与HRSG相关联,并且是给水36通过其而流动以便加热成蒸汽的机械装置,如下文进一步详细地描述的。一系列热管30具有部分地设置在HRSG排气流管道28内的第一端29,以及延伸到再热***34中的第二端31。当来自涡轮16的高温排气32穿过HRSG时,热管30将热量从高温排气32传递给加热***34,导致热量从高温排气传递给流过其中的给水36。借助于给水泵46,给水36从冷凝器42(在其中,从蒸汽轮机***18中收集给水36)通过导管44而流动到HRSG24。给水穿过加热***34(在其中,利用来自高温排气32的热量将给水加热成蒸汽),并且,随后通过回流导管48而输送到蒸汽轮机***18。
热管30可以是对流的或传导的固态结构。传导的固态热管包括真空密封的载体(carrier),诸如包含置于导管的空腔内的固体或半固体超导传热介质的管或导管。该介质呈层状被涂覆到导管壁部,以引起高效的热传导。对流热管包括真空密封的、在其中布置有毛细结构和工作流体的管或导管。对流热管通过藉由工作流体的质量传递和载体在管内从液态到汽态的相变来传递热量而运行。
在图2中示意性地显示的本发明的示范性实施例中,热管30延伸到排气流管道28外,穿过HRSG24的壁部26,在此处,它们与加热***34相连通,以将热量传递给给水36。加热***34构造成从热管30及因此HRSG24中吸取所期望的量的热量。不同于已知的***,对给水的传热发生在排气流管道28中的高温排气流32之外,并且不受湿式传热***(wet heat transfer system)的传热限制影响,在湿式传热***中,冷侧表面区域受传统的给水管内的表面区域所限制。在本发明中,冷侧表面区域50由热管30的第二端31的外部限定。这样,可用于将热量传递给给水36的表面区域50不受限制,并且将其尺寸设置为用于增强的传热。
虽然图2中所示的热管30在外形上大体是圆柱形的,但是本发明构思了各种形状和大小的导管,包括平板。所设想的是,将选择热管30的构造以高效地将热量传递至管及自管传递热量,同时降低或保持HRSG24的排气流管道28内的可接受的排气流背压。
本书面描述使用示例来公开本发明,包括最佳型式,且还使得本领域任何技术人员能够实践本发明,包括制造和使用任何装置或***及实施任何结合的方法。本发明可获得专利的范围由权利要求所限定,并且可包括本领域技术人员所想到的其它示例。如果这样的其它示例具有与权利要求的字面语言没有区别的结构元件,或者如果它们包括与权利要求的字面语言无实质不同的等效结构元件,则这样的其它示例意图处在权利要求的范围内。
Claims (10)
1.一种包括燃气轮机(12)和蒸汽轮机(18)的联合循环发电设备(10),包括:
热回收***(24),其用于以热的方式连接所述燃气轮机(12)和所述蒸汽轮机(18),具有用于接收来自所述燃气轮机(12)的热排气(32)的管道(28);
加热***(34),其与所述热回收***(24)相关联,用于接收给水(36);
至少一个热管(30),其具有:设置在所述管道(28)内、与所述热排气(32)相接触且可操作以从所述热排气(32)中移除热量的第一端(29);以及设置在所述加热***(34)内且可操作以将所述热量传递给所述给水(36)的第二端(31)。
2.根据权利要求1所述的联合循环发电设备(10),其特征在于,从所述至少一个热管(30)到所述给水(36)的传热发生在所述热排气(32)之外。
3.根据权利要求1所述的联合循环发电设备(10),其特征在于,所述至少一个热管(30)的第二端(31)限定了冷侧传热面(50)。
4.根据权利要求1所述的联合循环发电设备(10),其特征在于,所述至少一个热管(30)还包括:
导管(44);
固体或半固体传热介质中的至少一种,其设置在所述导管(44)内,在其壁部上,并且可操作以将热量从其所述第一端(29)传递到所述第二端(31)。
5.根据权利要求1所述的联合循环发电设备(10),其特征在于,所述至少一个热管(30)还包括:
导管(44);
设置在所述导管(44)内的工作流体;
所述工作流体可操作,以将热量从其所述第一端(29)传递到所述第二端(31)。
6.一种用于从热排气流(32)中回收热量的联合循环发电设备热回收***(24),包括:
用于接收热排气(32)的管道(28);
用于接收给水(36)的加热***(34);
具有设置在所述管道(28)内的第一端(29)和设置在所述加热***(34)内的第二端(31)并且可操作以将热量从所述热排气(32)传递给所述水源(36)的热管(30)。
7.根据权利要求6所述的联合循环发电设备热回收***(24),其特征在于,所述热管(30)还包括:
导管(44);
固体或半固体传热介质,其设置在所述导管(44)内、在其壁部上,并且可操作以将热量从其所述第一端(29)传递到所述第二端(31)。
8.根据权利要求6所述的联合循环发电设备热回收***(24),其特征在于,所述热管(30)还包括:
导管(44);
设置在所述导管(44)内的工作流体;
所述工作流体可操作,以将热量从其所述第一端(29)传递到所述第二端(31)。
9.根据权利要求6所述的联合循环发电设备热回收***(24),其特征在于,从所述热管(30)到所述给水(36)的冷侧传热处于所述热排气管道(28)之外。
10.根据权利要求6所述的联合循环发电设备热回收***(24),其特征在于,所述热管(30)的第二端(31)限定了冷侧传热面(50)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/253,435 US20100095648A1 (en) | 2008-10-17 | 2008-10-17 | Combined Cycle Power Plant |
US12/253435 | 2008-10-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN101725382A true CN101725382A (zh) | 2010-06-09 |
Family
ID=42107526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200910207614.6A Pending CN101725382A (zh) | 2008-10-17 | 2009-10-16 | 联合循环发电设备 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20100095648A1 (zh) |
EP (1) | EP2275650A1 (zh) |
JP (1) | JP2010096495A (zh) |
CN (1) | CN101725382A (zh) |
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CN101764167B (zh) * | 2009-12-25 | 2011-08-24 | 赵耀华 | 太阳能光伏电池高效散热装置及热电联供*** |
US9611756B2 (en) * | 2012-11-02 | 2017-04-04 | General Electric Company | System and method for protecting components in a gas turbine engine with exhaust gas recirculation |
US20150300261A1 (en) * | 2014-04-17 | 2015-10-22 | General Electric Company | Fuel heating system for use with a combined cycle gas turbine |
US9945266B2 (en) | 2014-08-28 | 2018-04-17 | General Electric Company | Combined cycle power plant thermal energy conservation |
US10400675B2 (en) * | 2015-12-03 | 2019-09-03 | General Electric Company | Closed loop cooling method and system with heat pipes for a gas turbine engine |
FR3106621A1 (fr) * | 2020-01-28 | 2021-07-30 | Airbus Operations (S.A.S.) | Turbomachine pour aéronef équipée d’un système thermo-acoustique. |
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2008
- 2008-10-17 US US12/253,435 patent/US20100095648A1/en not_active Abandoned
-
2009
- 2009-10-13 JP JP2009235840A patent/JP2010096495A/ja not_active Withdrawn
- 2009-10-16 CN CN200910207614.6A patent/CN101725382A/zh active Pending
- 2009-10-16 EP EP09173330A patent/EP2275650A1/en not_active Withdrawn
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US20100095648A1 (en) | 2010-04-22 |
JP2010096495A (ja) | 2010-04-30 |
EP2275650A1 (en) | 2011-01-19 |
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