WO2012114367A1 - Système de turbine à gaz utilisant la chaleur solaire - Google Patents

Système de turbine à gaz utilisant la chaleur solaire Download PDF

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Publication number
WO2012114367A1
WO2012114367A1 PCT/JP2011/000931 JP2011000931W WO2012114367A1 WO 2012114367 A1 WO2012114367 A1 WO 2012114367A1 JP 2011000931 W JP2011000931 W JP 2011000931W WO 2012114367 A1 WO2012114367 A1 WO 2012114367A1
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WO
WIPO (PCT)
Prior art keywords
compressor
gas turbine
air
solar heat
turbine system
Prior art date
Application number
PCT/JP2011/000931
Other languages
English (en)
Japanese (ja)
Inventor
高橋　文夫
重雄 幡宮
小山　一仁
永渕　尚之
尚弘 楠見
Original Assignee
株式会社 日立製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社 日立製作所 filed Critical 株式会社 日立製作所
Priority to JP2013500660A priority Critical patent/JPWO2012114367A1/ja
Priority to PCT/JP2011/000931 priority patent/WO2012114367A1/fr
Publication of WO2012114367A1 publication Critical patent/WO2012114367A1/fr

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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
    • F02C1/00—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid
    • F02C1/04—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly
    • F02C1/05—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly characterised by the type or source of heat, e.g. using nuclear or solar energy
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines

Definitions

  • the present invention relates to a solar heat utilization gas turbine system that heats compressed air with solar heat.
  • One of the power plants that support industrial power is a gas turbine power plant that uses fossil resources such as natural gas and oil as fuel. Since this gas turbine power plant uses fossil resources as fuel, it is required to suppress as much as possible the emission of carbon dioxide (CO 2 ), which is one of the global warming substances.
  • the thermal cycle of the gas turbine power generation system basically follows the Braiton cycle, and the thermal efficiency is determined by the compression ratio of the air.
  • the compressed air can be heated by solar heat, the solar heat can be used effectively due to high thermal efficiency.
  • the air temperature increases due to adiabatic compression.
  • heating of air by solar heat is suppressed. That is, the problem that solar heat cannot be used effectively arises. For this reason, the method of suppressing the temperature rise accompanying air compression is desired.
  • Non-Patent Document 1 discloses a gas turbine power generation system in which a compression process is divided into two stages, subjected to intermediate cooling, the temperature of compressed air is lowered, and heating is performed by solar heat.
  • Patent Document 1 discloses a gas turbine power generation system in which droplets are sprayed on an intake portion and air is cooled by evaporation in a compressor stage.
  • Non-Patent Document 1 the temperature of compressed air is lowered by an intercooler to promote heating by solar heat. The effect of reducing the power of the compressor is also expected. However, there is a demerit that the thermal efficiency decreases because the energy is released to the external system by the intercooler.
  • Patent Document 1 since air is cooled by evaporation of droplets sprayed on the sucked air, there is no demerit that energy is released to the external system.
  • the purpose is to increase output and improve efficiency, and the cooled air increases the amount of fuel consumed and is heated to a predetermined temperature.
  • the use of solar heat is not considered at all.
  • An object of the present invention is to provide a solar heat utilization gas turbine system capable of reducing the release of energy to the outside of the system due to the intermediate cooling of the compressor and effectively utilizing solar heat.
  • the temperature of the compressed air is lowered by intake spray cooling, and the cooled compressed air is heated by solar heat.
  • the air heated by solar heat is heated again by combustion to a predetermined temperature, and work is taken out by the turbine.
  • the solar heat utilization gas turbine system of the present invention includes a compressor that compresses air, a combustor that combusts air and fuel compressed by the compressor, and a combustion gas generated by the combustor. And a spray device for spraying fine droplets on the intake air of the compressor, and an air heater for heating the air compressed by the compressor by solar heat.
  • Example 1 It is a block diagram of a solar heat utilization gas turbine system (Example 1).
  • Example 2 which is a block diagram of a solar heat utilization gas turbine system.
  • Example 3 which is a block diagram of a solar heat utilization gas turbine system.
  • Example 4 which is a block diagram of a solar heat utilization gas turbine system.
  • Droplets are sprayed on the intake air of the compressor of the gas turbine power generation system.
  • the droplets start to evaporate immediately after spraying, and cool the air by the amount corresponding to the latent heat of vaporization. This is a maximum and continues until the vapor partial pressure reaches the saturated vapor pressure.
  • the cooled air then flows into the compressor stage.
  • air is adiabatically compressed to increase not only the pressure but also the temperature. This causes the droplets to evaporate and cool the air, thereby suppressing the temperature increase.
  • the droplets evaporate, the mass flow rate of the mixed gas of air and steam increases, but the volume flow rate decreases, so the power of the compressor is reduced.
  • the temperature of the compressed air flowing out of the compressor decreases.
  • sunlight is collected by a mirror or the like and is usually collected by a heat collecting medium that is a fluid.
  • the heat collection medium is heated from a cold temperature to a high temperature. Sunlight can be obtained only in the daytime, and the amount of solar radiation varies depending on the weather.
  • the heat collection medium that has reached a high temperature is temporarily stored in a high-temperature tank and heats the previous compressed air.
  • the low temperature heat collection medium is stored in a low temperature tank.
  • the heated compressed air is sent to the combustor and heated to a predetermined temperature by combustion. It is then sent to the turbine for work.
  • FIG. 1 shows a basic configuration of a solar heat utilizing gas turbine system.
  • the gas turbine system in the present embodiment includes a compressor 1 that compresses air, a combustor 2 that combusts air and fuel compressed by the compressor 1, and solar air that is compressed by the compressor and supplied to the combustor 2. It is comprised by the air heater 3 heated by the, the turbine 4 driven by the combustion gas produced
  • a liquid spray 11 (a spraying device) that sprays fine droplets on the atmosphere 10 that is intake air taken into the compressor 1 and a liquid tank 12 that stores water supplied to the liquid spray 11 are further provided.
  • a collecting mirror 20 that collects sunlight
  • a heat collecting tube 21 that collects solar heat collected by the collecting mirror 20
  • a low-temperature tank 7 that stores a heated medium supplied to the heat collecting tube 21,
  • a high-temperature tank 6 for storing a heated medium heated by the heat tube 21 and heated.
  • the compressor 1, the turbine 4, and the generator 9 are connected by a shaft, and the power generated in the turbine 4 is transmitted to the compressor 1 and the generator 9.
  • a liquid spray 11 is provided on the intake side of the compressor 1, and fine droplets (for example, a particle diameter of 1 to 50 ⁇ m) are sprayed on the intake air of the compressor 1.
  • the droplets sprayed by the liquid spray 11 are vaporized until part of the droplets are introduced into the compressor 1, and unvaporized droplets are introduced into the compressor, and all of the droplets pass through the compressor 1. It evaporates during the flow down (compression process).
  • sunlight is collected by the collecting mirror 20 and collected in the heat collecting tube 21.
  • the heat collecting medium is heated and stored in the high temperature tank 6.
  • a high temperature heat collecting medium is sent from the high temperature tank 6 to the air heater 3 to heat the compressed air.
  • the droplets sprayed into the intake air of the compressor 1 start to evaporate immediately after spraying, and cool the air by an amount corresponding to the latent heat of evaporation. This is a maximum and continues until the vapor partial pressure reaches the saturated vapor pressure.
  • the cooled air flows into the paragraph of the compressor 1.
  • the air is adiabatically compressed and the temperature rises as well as the pressure. As a result, the droplets evaporate to cool the air. For this reason, a temperature rise is suppressed.
  • the droplets evaporate, the mass flow rate of the mixed gas of air and steam increases, but the volume flow rate decreases, so the power of the compressor 1 is reduced. At the same time, the temperature of the compressed air flowing out from the compressor 1 decreases.
  • the heated compressed air is sent to the combustor 2 and heated to a predetermined temperature by combustion. Next, it is sent to the turbine 4 to obtain work.
  • the liquid spray 11 sprays and cools the intake air of the compressor, and further evaporates the liquid droplets while flowing through the compressor, so that the intermediate cooler releases energy to the outside of the system (non-patent document).
  • the thermal efficiency is reduced as in 1), and solar heat can be used effectively.
  • the gas is reheated to a predetermined temperature by combustion, the gas turbine system can be operated at a planned design point. Thereby, a stable output can be obtained regardless of the amount of solar radiation accompanying the weather.
  • Solar heat is used as an auxiliary, but in general, the thermal efficiency of gas turbine systems is higher at larger scales due to the merit of scale. For this reason, applying the present invention to a large-scale gas turbine system can be expected to greatly improve the utilization efficiency of solar heat.
  • FIG. 2 is a configuration diagram applied to a combined power plant that recovers exhaust heat of the turbine 4 and operates a steam turbine.
  • the components added by the present embodiment are a steam turbine 5, an exhaust heat recovery boiler 15, and a condenser 16.
  • the exhaust from the turbine 4 is still hot, and steam is generated by the exhaust heat in the exhaust heat recovery boiler 15.
  • the steam is sent to the steam turbine 5 to obtain an output, and is finally condensed in the condenser 16.
  • the solar heat input to the combined power plant is sent to the steam turbine 5 via the turbine 4, so that high thermal efficiency is obtained.
  • the well-known use of solar heat is generally to supply steam to a steam turbine alone or to a combined plant steam turbine. It is possible to increase it further.
  • FIG. 3 is a configuration diagram applied to a combined power plant using an intercooled gas turbine.
  • the compressor 1 is separated into a low-pressure compressor 1a and a high-pressure compressor 1b, and an air cooler 17 is newly provided between them.
  • the liquid spray 11 is provided with an intake 11a for the low-pressure compressor 1a and an intake 11b for the high-pressure compressor 1b.
  • the intake spray flow rate can be set independently for the liquid spray 11a and the liquid spray 11b.
  • the flow rate of the cooling medium for intermediate cooling can also be set according to the purpose.
  • cooling can be performed even inside the paragraphs of the low-pressure compressor 1a and the high-pressure compressor 1b, and the power of the low-pressure compressor 1a and the high-pressure compressor 1b is more effectively reduced. it can. Cooling inside the paragraph of the high-pressure compressor 1b further reduces the temperature of the compressed air.
  • the cooling medium of the air cooler 17 may be eliminated and only the intake spray from the liquid spray 11a may be used.
  • the intake spray flow rate can be changed between the liquid spray 11a and the liquid spray 11b in accordance with the operating conditions.
  • the atmospheric temperature may be below the freezing point and liquid spraying may not be possible, but this is not the case for the high-pressure compressor 1b. This is because the air temperature rises due to adiabatic compression in the low-pressure compressor 1a.
  • FIG. 4 is a configuration diagram in which other waste heat is used together.
  • a waste heat recovery unit 30 is provided, and the high temperature tank 6 is divided into a first high temperature tank 6a and a second high temperature tank 6b. It is a point provided.
  • the heat collection medium supplied from the low temperature tank 7 is heated by the waste heat recovery unit 30, and then supplied to the air heater 3 via the first high temperature tank 6a.
  • a system for further heating by solar heat in the heat collecting tube 21 after passing through the heat recovery unit 30 is configured.
  • the waste heat recovered by the waste heat recovery unit 30 is assumed to be waste heat from a factory or a waste incinerator. These can be obtained more stably than solar heat for a long time during the day. For this reason, the waste heat from the waste heat recovery unit 30 is used as a base, and during a period in which solar heat can be used, a higher temperature heat collection medium can be obtained and fuel consumption can be reduced.
  • It can be used as a gas turbine system that applies solar heat to a gas turbine.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

L'invention porte sur les turbines à gaz. Le but de la présente invention est de réaliser un système de turbine à gaz qui utilise la chaleur solaire, le système de turbine à gaz étant conçu de telle sorte que la cession d'énergie à l'extérieur du système qui est provoquée par le refroidissement intermédiaire d'un compresseur soit réduite pour utiliser efficacement la chaleur solaire. Un système de turbine à gaz utilisant la chaleur solaire est caractérisé en ce qu'il comprend un compresseur (1) servant à comprimer de l'air ; une chambre de combustion (2) destinée à brûler un combustible et l'air comprimé par le compresseur ; une turbine (4) entraînée par le gaz de combustion formé par la chambre de combustion ; une pulvérisation de liquide (11) servant à pulvériser de minuscules gouttelettes de liquide dans l'air aspiré par le compresseur ; et un dispositif de chauffage de l'air (3) destiné à chauffer au moyen de la chaleur solaire l'air qui est comprimé par le compresseur.
PCT/JP2011/000931 2011-02-21 2011-02-21 Système de turbine à gaz utilisant la chaleur solaire WO2012114367A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2013500660A JPWO2012114367A1 (ja) 2011-02-21 2011-02-21 太陽熱利用ガスタービンシステム
PCT/JP2011/000931 WO2012114367A1 (fr) 2011-02-21 2011-02-21 Système de turbine à gaz utilisant la chaleur solaire

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PCT/JP2011/000931 WO2012114367A1 (fr) 2011-02-21 2011-02-21 Système de turbine à gaz utilisant la chaleur solaire

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101531931B1 (ko) * 2014-05-13 2015-06-26 지에스건설 주식회사 복합 화력 발전 시스템
JP5944035B1 (ja) * 2015-07-14 2016-07-05 三菱日立パワーシステムズ株式会社 圧縮空気供給方法、圧縮空気供給設備、及びこの設備を備えるガスタービン設備
WO2019100359A1 (fr) * 2017-11-27 2019-05-31 贵州智慧能源科技有限公司 Système turbogénérateur d'énergie à gaz solaire

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61138833A (ja) * 1984-12-08 1986-06-26 Mitsui Eng & Shipbuild Co Ltd 固体燃料を使用する発電装置
JPH03279100A (ja) * 1990-03-29 1991-12-10 Toshiba Corp 宇宙用熱発電設備
JPH1136817A (ja) * 1997-07-16 1999-02-09 Mitsubishi Heavy Ind Ltd 発電設備
JP2002021582A (ja) * 2000-04-28 2002-01-23 General Electric Co <Ge> ガスタービンエンジンの排出物質低減方法及び装置
JP2008121483A (ja) * 2006-11-10 2008-05-29 Kawasaki Heavy Ind Ltd 熱媒体供給設備および太陽熱複合発電設備なびにこれらの制御方法
JP2008175149A (ja) * 2007-01-19 2008-07-31 Hitachi Ltd 圧縮機の吸気噴霧装置
JP2009191762A (ja) * 2008-02-15 2009-08-27 Panasonic Corp コンバインドサイクル装置
JP2010144725A (ja) * 2008-12-22 2010-07-01 General Electric Co <Ge> 太陽熱加熱システムを使用した燃料加熱のためのシステムおよび方法
JP2010281272A (ja) * 2009-06-05 2010-12-16 Mitsubishi Heavy Ind Ltd 太陽熱ガスタービン及び太陽熱ガスタービン発電装置
JP2010285926A (ja) * 2009-06-11 2010-12-24 Mitsubishi Heavy Ind Ltd タービン装置及びその制御方法

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61138833A (ja) * 1984-12-08 1986-06-26 Mitsui Eng & Shipbuild Co Ltd 固体燃料を使用する発電装置
JPH03279100A (ja) * 1990-03-29 1991-12-10 Toshiba Corp 宇宙用熱発電設備
JPH1136817A (ja) * 1997-07-16 1999-02-09 Mitsubishi Heavy Ind Ltd 発電設備
JP2002021582A (ja) * 2000-04-28 2002-01-23 General Electric Co <Ge> ガスタービンエンジンの排出物質低減方法及び装置
JP2008121483A (ja) * 2006-11-10 2008-05-29 Kawasaki Heavy Ind Ltd 熱媒体供給設備および太陽熱複合発電設備なびにこれらの制御方法
JP2008175149A (ja) * 2007-01-19 2008-07-31 Hitachi Ltd 圧縮機の吸気噴霧装置
JP2009191762A (ja) * 2008-02-15 2009-08-27 Panasonic Corp コンバインドサイクル装置
JP2010144725A (ja) * 2008-12-22 2010-07-01 General Electric Co <Ge> 太陽熱加熱システムを使用した燃料加熱のためのシステムおよび方法
JP2010281272A (ja) * 2009-06-05 2010-12-16 Mitsubishi Heavy Ind Ltd 太陽熱ガスタービン及び太陽熱ガスタービン発電装置
JP2010285926A (ja) * 2009-06-11 2010-12-24 Mitsubishi Heavy Ind Ltd タービン装置及びその制御方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101531931B1 (ko) * 2014-05-13 2015-06-26 지에스건설 주식회사 복합 화력 발전 시스템
JP5944035B1 (ja) * 2015-07-14 2016-07-05 三菱日立パワーシステムズ株式会社 圧縮空気供給方法、圧縮空気供給設備、及びこの設備を備えるガスタービン設備
JP2017020458A (ja) * 2015-07-14 2017-01-26 三菱日立パワーシステムズ株式会社 圧縮空気供給方法、圧縮空気供給設備、及びこの設備を備えるガスタービン設備
WO2019100359A1 (fr) * 2017-11-27 2019-05-31 贵州智慧能源科技有限公司 Système turbogénérateur d'énergie à gaz solaire

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