CN100455781C - Wet compression-rear surface cooling-regenerative cycle combustion turbine - Google Patents

Wet compression-rear surface cooling-regenerative cycle combustion turbine Download PDF

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Publication number
CN100455781C
CN100455781C CN 200710072424 CN200710072424A CN100455781C CN 100455781 C CN100455781 C CN 100455781C CN 200710072424 CN200710072424 CN 200710072424 CN 200710072424 A CN200710072424 A CN 200710072424A CN 100455781 C CN100455781 C CN 100455781C
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cooler
compressor
turbine
water
regenerator
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CN 200710072424
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CN101078370A (en
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徐立民
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中国船舶重工集团公司第七○三研究所
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Abstract

本发明提供的是一种湿压缩-后表冷-回热循环燃气轮机。 The present invention provides a wet compression - after cooler - regenerative cycle gas turbine. 它包括湿压缩压气机、后表冷器、燃烧室、涡轮、回热器,在压气机的进口和中间处设有水滴雾加入口,在气体循环工质的压缩流程中,水滴与气体循环工质混合并吸热蒸发,在压气机的出口与涡轮之间串联有后表冷器、回热器和燃烧室,出压气机的循环工质依次经过后表冷器、回热器低温侧、燃烧室、涡轮、回热器高温侧,最后排入大气,后表冷器的冷凝析出水经水处理器后作为水滴雾用水进入压气机。 It comprises a wet compression compressor after cooler, a combustor, a turbine, the regenerator, was added with mist water droplets at the inlet port and the middle compressor, the working fluid gas circulation in the compression process, water droplets and gas circulation mixed working fluid to evaporate and, between the outlet of the turbine compressor connected in series with the cooler, the regenerator and the combustion chamber after the circulating working fluid sequentially through a compressor cooler, regenerator temperature side , a combustor, a turbine, the high-temperature side heat back, and finally into the atmosphere, the cooler condensate water precipitated after water mist droplets as the processor water into the compressor. 本发明的湿压缩-后表冷-回热循环燃气轮机,在涡轮前温度、压气机压比和部件效率相同条件下,可比简单循环燃气轮机在热效率指标方面提高约29%-35%,在单位空气流量的输出功率指标方面提高约26%-33%。 Wet compression invention - after cooler - regenerative cycle gas turbine, at a temperature before the same conditions compressor pressure ratio and efficiency of the turbine member, than simple cycle gas turbine is increased by about 29% -35% thermal efficiency indicators, the air in the unit power output flow indicators increased by about 26% -33%.

Description

湿压縮-后表冷-回热循环燃气轮机 Wet Compression - After cooler - regenerative cycle gas turbine

一、 技术领域 First, the technical field

本发明涉及的是一种燃气轮机。 The present invention relates to a gas turbine. 具体地说是一种燃气轮机的循环系统。 In particular a gas turbine cycle system.

二、 背景技术 Second, the technical background

燃气轮机可分为简单循环和复杂循环。 It can be divided into simple cycle gas turbine cycle and complex. 简单循环燃气轮机具有压气机、燃烧室和涡轮这三大类主要部件,为提高其循环效率,需要提高涡轮前温度、压气机压比和部件效率。 Simple cycle gas turbine having a compressor, a combustor and a turbine main components of these three categories, in order to improve the cycle efficiency, it is necessary to improve the turbine inlet temperature, compressor pressure ratio and efficiency of the components. 复杂循环燃气轮机是在简单循环基础上增加了其他部件,循环工质的热力过程有了性质上的改变,可在涡轮前温度等循环参数不变的条件下提高效率、功率等性能。 Complex simple cycle gas turbine cycle is increased on the basis of the other components of the working fluid thermodynamic cycle process has changed in properties, can improve the efficiency, power performance, etc. and the like at a turbine inlet temperature cycling parameters unchanged conditions. 简单循环和复杂循环燃气轮机各有优缺点,自燃气轮机诞生以来一直相互竞争发展,性能得到不断提高。 Simple cycle and complex cycle gas turbines have advantages and disadvantages, since the birth of the gas turbine has been competing development, performance continued to improve.

三、 发明内容 III. SUMMARY OF THE INVENTION

本发明的目的在于提供一种可以进一步提高燃气轮机的效率的湿压縮-后表冷-回热循环燃气轮机。 Object of the present invention is to provide a gas turbine efficiency can be further improved wet compression - after cooler - regenerative cycle gas turbine.

本发明的目的是这样实现的:它包括湿压縮压气机、后表冷器、燃烧室、涡轮、回热器,在压气机的进口和中间处设有水滴雾加入口,在气体循环工质的压縮流程中,水滴与气体循环工质混合并吸热蒸发,在压气机的出口与涡轮之间串联有后表冷器、回热器和燃烧室,出压气机的循环工质依次经过后表冷器、回热器低温侧、燃烧室、涡轮、回热器高温侧,最后排入大气,后表冷器中的循环工质冷凝析出水经水处理器后作为水滴雾用水进入压气机,出回热器低温侧的循环工质进入燃烧室中。 Object of the present invention is implemented as follows: Wet Compression compressor comprising, after cooler, a combustor, a turbine, the regenerator, was added with water droplets of fog and the inlet port of the compressor in the middle, the working gas circulation quality compression process, the water droplets mix with the gas circulating working substance to evaporate and, between the outlet of the turbine compressor connected in series with the cooler, the regenerator and the combustion chamber, the compressor cycle fluid sequentially after the cooler, regenerator temperature side, a combustor, a turbine, the high-temperature side heat back, and finally into the atmosphere, the surface cooler circulating refrigerant condensed water precipitated after water mist droplets as the water enters the processor compressor, the low-temperature side heat back to the cycle fluid into the combustion chamber.

本发明属于复杂循环燃气轮机,现有的复杂循环机组和技术方案尽管热效率已经比较高,但本发明的技术方案是一个效率更高、技术更先进的复杂循环燃气轮机。 The present invention is a complex cycle gas turbine, the conventional cycle unit and complex technical solutions have been relatively high although the thermal efficiency, but the aspect of the present invention is a more efficient, more technologically advanced complex cycle gas turbine. 本发明将简单循环燃气轮机及其三大类主要部件技术、回热技术、湿压縮技术、表面换热技术有机集成,形成湿压縮-后表冷-回热循环燃气轮机,效果大幅超越了原有技术的单独使用和已有的组合使用方案。 The present invention is simple cycle gas turbine technology and its three principal components, the heat recovery technology, wet compression technology, integration of the surface of the organic heat transfer technology, a wet compression - after cooler - regenerative cycle gas turbine, a significant effect beyond the original and prior art that use a combination of separate programs.

本发明的湿压縮-后表冷-回热循环燃气轮机,在涡轮前温度、压气机压比和部件效率相同条件下,可比简单循环燃气轮机在热效率指标方面提高约 Wet compression invention - after cooler - regenerative cycle gas turbine, a comparable increase in simple cycle gas turbine thermal efficiency indicators at a turbine inlet temperature, compressor pressure ratio and the same conditions of efficiency of about member

29%-35%,在单位空气流量的输出功率指标方面提高约26%-33%;同等条件下, 29% -35%, about 26% -33% increase in output power per unit of air flow indicator aspect; under the same conditions,

现有技术的复杂循环——蒸汽回注(STIG)、间冷回热(ICR)、喷水中冷/蒸汽回注(SS)在热效率指标方面的提商幅度低于湿压缩-后表冷-回热循环。 After cooler - Complex cycle prior art - steam reinjection (STIG), recuperator between cold (ICR), the cold water / steam reinjection (SS) mentioned in commercially amplitude index is lower than the thermal efficiency of wet compression - heat recovery cycle. 另外, 作为特色功能,湿压缩-后表冷-回热循环利用压气机后表冷器冷凝回收水在开式循环中容易地实现了水的循环使用。 Further, as the features, wet compression - after cooler - hot recycled back to the compressor cooler condensate water recovered in an open loop is achieved easily recycled water.

本发明的湿压縮-后表冷-回热循环燃气轮机的热力循环方案为:从循环工质压縮过程始点开始,1)湿压縮:主体循环工质(空气、氦气等)流经压气机升压,同时,在流程起始端加入水滴雾,必要时在流程中补充加入水滴雾,使水滴沿流程蒸发,起到降温作用,流程终端为水蒸汽和主体循环工质的混合物;2) 后表冷:升压后的主体循环工质和水蒸汽流经压气机后面的表面冷却器,温度降低,冷凝析出加入的水分;3)回热器低温镧流程:在回热器中与高温侧气体通过表面换热增加温度;4)燃烧升温:在燃烧室吸收高温热源的热量;5)膨胀做功:高温髙压循环工质在涡轮中膨胀做功,降温降压;6)回热器高温侧流程: 涡轮出口带有余热的循环工质在回热器中通过表面换热把热量传给低温侧气体; 7)向低温冷源放热:循环工质向低温冷源放热,重新回到常温 Wet compression invention - after cooler - regenerative cycle gas turbine thermodynamic cycle scheme: working fluid during a compression cycle from the starting point Start, 1) wet compression: the main cycle fluid (air, helium) flows booster compressor, while, in the process starting end fog droplets added, if necessary, in a supplementary process was added drop mist, water droplets in the evaporation process, a cooling effect, and water vapor flow of the terminal cycle fluid host mixture; 2 ) after cooler: the back surface of the cooler body boosted cycle working fluid flowing through the compressor and water vapor, the temperature decreases, condensed water precipitated added; 3) the low-temperature regenerator lanthanum process: and in regenerators temperature side heat exchange surface by increasing the temperature of the gas; 4) combustion temperature rise: high-temperature heat source in the combustion chamber absorption; 5) expansion work: Gao pressure high temperature working fluid cycle work expansion, in the turbine to cool down; 6) regenerator high-temperature side flow: circulating working fluid in the turbine outlet with a heat recuperator of heat transfer through the heat to the low temperature-side gas; 7) to the cryogenic cold heat source: circulating working fluid to cryogenic cold heat source, re Return to room temperature 初压的压縮过程始点。 The initial pressure of the compression process starting point.

本发明的湿压缩-后表冷-回热循环燃气轮机提高功率和热效率的理论依据及原理是:压气机中喷入的水滴蒸发,降低了工质温度,因而朋显使压气机耗功减少,也就使机组的输出功率增加;压气机出口温度低于涡轮出口温度,是回收涡轮排气余热的条件,充分利用湿压縮降温和后表冷降温特点,增设回热器,大幅回收排气余热,使进入燃烧室的气体温度升高,使燃料消耗减少,从而做到相同燃料消耗时输出功率增加,也就是热效率的增加。 Wet compression invention - after cooler - regenerative cycle gas turbine and improve the theoretical thermal efficiency and power principle is: the compressor injected water droplets to evaporate, the refrigerant temperature is reduced, thereby making friends significantly reduce power consumption of the compressor, will increase the output power of the unit; compressor outlet temperature is lower than the outlet temperature of the turbine, the turbine exhaust gas heat recovery condition is the full use of wet compression and cooling characteristics of the cooler cooling, additional regenerator, substantially recover exhaust waste heat, the temperature of the gas into the combustion chamber is increased, fuel consumption is reduced to achieve the same output power increases the fuel consumption, thermal efficiency is increased.

与同类比较,本发明的湿压縮-后表冷-回热循环燃气轮机性能能够得到较大幅度提高的原因是:湿压縮冷却效果好,更接近于等温压縮,使机组功率增加幅度大;压气机后表面冷却器使压气机出口气体温度继续降低,使回热程度更深。 Compared with similar, wet compression invention - after cooler - regenerative cycle gas turbine performance can be increased substantially reasons are: wet compression cooling effect closer to isothermal compression, the unit power increase large amplitude ; rear surface of the compressor so that the compressor cooler exit gas temperature continues to drop, so that the regenerator and deeper.

四、 附图说明 IV BRIEF DESCRIPTION

附图是本发明的具体实施方式的结构示意图。 DETAILED the drawings is a schematic embodiment of the present invention.

五、 具体实施方式 V. DETAILED DESCRIPTION

下面结合附图举例对本发明作更详细的描述: In conjunction with the accompanying drawings illustrative of the present invention will be described in more detail:

结合附图,湿压缩-后表冷-回热循环燃气轮机的组自括湿压縮压气机、后 In conjunction with the accompanying drawings, wet compression - after cooler - regenerative cycle gas turbine group comprising from wet compression of the compressor, after

表冷器、燃烧室、涡轮、回热器,在压气机的进口和中间处设有水滴雾加入口, 在气体循环工质的压缩流程中,水滴与气体循环工质棍合并吸热蒸发,在压气机 Cooler, a combustor, a turbine, a regenerator, with water droplets in the mist at the compressor inlet and the intermediate addition port, the working fluid circulating in the gas compression process, the water droplets and the gas stick combined cycle fluid to evaporate, in the compressor

的出口与涡轮之间串联有后表冷器、回热器和燃烧室,出压气机的循环工质依次经过后表冷器、回热器低温側、燃烧室、涡轮、回热器离温侧,最后排入大气, 后表冷器中的循环工质冷凝析出水经过水处理器后作为水滴雾用水进入压气机。 After cooling coil connected in series between the outlet of the turbine, the regenerator and the combustion chamber after the circulating working fluid sequentially through a compressor cooler, regenerator temperature side, a combustor, a turbine, the regenerator temperature from side, and finally into the atmosphere, the table in cycle fluid cooler water through the condensed water precipitated processor as the water mist droplets into the compressor.

Claims (1)

1、一种湿压缩-后表冷-回热循环燃气轮机,它包括湿压缩压气机、后表冷器、燃烧室、涡轮、回热器,其特征是:压气机的进口和中间处设有水滴雾加入口,在气体循环工质的压缩流程中,水滴与气体循环工质混合并吸热蒸发;压气机的出口设有表面换热式后表冷器和回热器,出压气机的循环工质进入后表冷器,出后表冷器的循环工质进入回热器低温侧,回热器高温侧通以涡轮出口气体;后表冷器的循环工质冷凝析出水经水处理器后作为水滴雾用水进入压气机,出回热器低温侧的循环工质进入燃烧室中。 A wet compression - after cooler - regenerative cycle gas turbine comprising a compressor wet compression, after cooler, a combustor, a turbine, a regenerator, characterized in that: the compressor inlet is provided at the middle and fog was added drop port, the working fluid circulating in the gas compression process, the water droplets mix with the gas circulating working substance and to evaporate; surface is provided after the outlet of the compressor and the heat exchanger type cooler regenerator, the compressor after the cycle fluid into the cooler, after the cooler working fluid cycle into the low-temperature side of the regenerator, the high-temperature side heat back on to the gas turbine outlet; after cooler working medium circulating water through the condensed water precipitated after the water droplets into the compressor as water mist, the low-temperature side heat back to the cycle fluid into the combustion chamber.
CN 200710072424 2007-06-29 2007-06-29 Wet compression-rear surface cooling-regenerative cycle combustion turbine CN100455781C (en)

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CN100455781C true CN100455781C (en) 2009-01-28

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1358931A (en) 1998-10-23 2002-07-17 株式会社日立制作所 Gas turbine generator and air humidifier
US6560957B2 (en) 1997-04-22 2003-05-13 Hitachi, Ltd. Gas turbine installation
US6609360B2 (en) 1995-12-28 2003-08-26 Hitachi, Ltd. Gas turbine, combined cycle plant and compressor
US6772596B2 (en) 2001-07-26 2004-08-10 Hitachi, Ltd. Gas turbine installation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6609360B2 (en) 1995-12-28 2003-08-26 Hitachi, Ltd. Gas turbine, combined cycle plant and compressor
US6560957B2 (en) 1997-04-22 2003-05-13 Hitachi, Ltd. Gas turbine installation
CN1358931A (en) 1998-10-23 2002-07-17 株式会社日立制作所 Gas turbine generator and air humidifier
US6772596B2 (en) 2001-07-26 2004-08-10 Hitachi, Ltd. Gas turbine installation

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