WO2005071244A1 - ガスタービン発電設備 - Google Patents
ガスタービン発電設備 Download PDFInfo
- Publication number
- WO2005071244A1 WO2005071244A1 PCT/JP2005/000682 JP2005000682W WO2005071244A1 WO 2005071244 A1 WO2005071244 A1 WO 2005071244A1 JP 2005000682 W JP2005000682 W JP 2005000682W WO 2005071244 A1 WO2005071244 A1 WO 2005071244A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas turbine
- power generation
- air
- turbine power
- compressor
- Prior art date
Links
Classifications
-
- 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
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/12—Cooling of plants
- F02C7/14—Cooling of plants of fluids in the plant, e.g. lubricant or fuel
- F02C7/141—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid
- F02C7/143—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid before or between the compressor stages
- F02C7/1435—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid before or between the compressor stages by water injection
-
- 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
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/08—Heating air supply before combustion, e.g. by exhaust gases
Definitions
- the present invention relates to a gas turbine power generation facility, and is particularly suitable for a gas turbine power generation facility that cools intake air of a compressor by spraying water onto intake air of the compressor.
- Conventional general gas turbine power generation equipment includes a compressor that compresses air that has been sucked into the atmosphere, a combustor that burns compressed air and fuel discharged from the compressor, and a combustor from the combustor. It is configured to include a gas turbine driven by combustion gas, a generator driven by the gas turbine, and a blower that draws air from the air to cool the generator (conventional technology 1).
- Patent Document 1 (Prior Art 2).
- This gas turbine power generation equipment compresses air taken from the atmosphere with a compressor to a high temperature and pressure, adds fuel to this high-pressure air and burns it to generate combustion gas, and flows the generated combustion gas to the turbine. This causes expansion work, and the generator is driven by the rotating torque generated at that time to extract electricity, and fine water droplets are sprayed on the intake air of the compressor, which evaporates in the compressor. Compressed air is cooled by using the latent heat of evaporation.
- Patent Document 1 Japanese Patent Application Laid-Open No. 9 236024
- the air sucked from the atmosphere is simply sucked into the compressor and compressed to increase the temperature and the pressure. Therefore, the power generation output and the power generation efficiency have the characteristics shown in abcd in FIG. There was a problem of low.
- the conventional technology 1 has a problem that when the temperature is high in summer or the like, the mass flow rate of the air sucked into the air becomes lower than the design value, and the output of the generator is significantly reduced.
- the ventilation fan that draws in atmospheric air and cools the generator is provided independently, the equipment becomes large, and the power of the ventilation fan is required, There is a problem that the efficiency is reduced.
- An object of the present invention is to provide a gas turbine power generation facility capable of increasing power generation output and improving power generation efficiency.
- the present invention provides a compressor for compressing air sucked from the atmosphere, a spray device for spraying water droplets on the air sucked into the compressor, and a discharge device from the compressor.
- Gas turbine power generation equipment comprising: a combustor for burning compressed air and fuel to be supplied; a gas turbine driven by combustion gas from the combustor power; and a generator driven by the gas turbine.
- a heating device for heating at least one of the air sucked into the compressor and the spray device is provided.
- the following configuration is more preferable.
- the spraying device controls spraying based on the temperature of air taken into the compressor.
- the spray device includes a sprayer that sprays water droplets into the air sucked into the compressor, a temperature detector that detects a temperature of the air sucked into the compressor, and a water amount that is supplied to the sprayer.
- the temperature detector detects the temperature of air on the suction side from the nebulizer, and the control valve is an on-off valve controlled to two states, an open state and a closed state.
- the generator is cooled by air drawn into the atmosphere, and a heating device is provided for cooling the generator and heating the air to be drawn into the compressor with air whose temperature has been increased.
- the heating device guides all of the air whose temperature has risen by cooling the generator to a flow path of air to be sucked into the compressor.
- the heating device communicates an outlet from which the air that has cooled the power generator and whose temperature has risen is discharged to an intermediate position of a flow path connecting the atomizer and the suction port of the compressor.
- an outlet for cooling the generator and discharging air whose temperature has increased is communicated with a spray portion of the sprayer or in the vicinity thereof.
- the generator is cooled by atmospheric power and is provided with a heating device for heating the water to be sprayed by cooling the generator and increasing the temperature of the spray device with air whose temperature has increased.
- the heating device guides the air whose temperature has been increased by cooling the generator to an air flow path that exchanges heat with a pipe that supplies water to the sprayer.
- a pipe for supplying water to the sprayer and an air flow path for heat exchange are formed by multiple pipes.
- the air sucked into the compressor and the spray device By providing a heating device for heating at least one of the water sprayed from the device, the amount of the sprayed water droplets to be evaporated can be increased, and the power generation output and the power generation efficiency can be improved.
- FIG. 1 is a configuration diagram showing a gas turbine power plant according to a first embodiment of the present invention
- FIG. 2 is a characteristic diagram showing the output and efficiency of the gas turbine power plant.
- the gas turbine power generation equipment 10 of the present embodiment includes a compressor 1 that also sucks air with atmospheric power, and a spray device 9 that sprays water droplets on the air sucked into the compressor 1.
- An intake duct la is connected to the compressor 1, and an atomizer 5 for spraying fine water droplets is installed in the intake duct la.
- the generator 4 has a cooling air passage 4 a through which air flows inside or outside the generator or inside and outside the generator.
- the cooling air passage 4a is connected to the intake duct la of the compressor 1, and has a structure in which the air that has cooled the generator 4 flows into the intake duct la. Therefore, air from the atmosphere is sucked into the compressor 1 through the intake duct la and the cooling air passage 4a.
- the intake duct 1a constitutes a main intake passage to the compressor 1, and the cooling air passage 4a constitutes an auxiliary intake passage.
- the cooling air flow path 4a is single, and the force cooling air flow path 4a connected to the intake duct la is branched into a plurality of parts, and a part thereof is connected to the intake duct la. A form that releases the remainder to the atmosphere may be used.
- the spray device 9 includes a spray device 5 and a water supply pipe 5a.
- the sprayer 5 sprays water droplets into the air sucked into the compressor 1, and is provided in the middle of the intake duct la.
- the atomizer 5 is provided at a position close to the intake port of the intake duct la, and the length of the intake duct la between the compressor 1 and the compressor 1 is long enough to allow water droplets to evaporate sufficiently. Yes.
- the water supply pipe 5a constitutes a flow path for supplying water from the water source to the sprayer 5.
- the heating device 11 is composed of the compressor 1 and the cooling air passage 4a, and also serves as a cooling device that cools the generator 1 with air sucked by atmospheric power. That is, the heating device 11 heats the air in the intake duct 1 a to be sucked into the compressor 1 with the air whose temperature has been increased by cooling the generator 1.
- the cooling air passage 4a is communicated with a position in the intake duct la between the atomizer 5 and the compressor 1.
- the communication position of the cooling air flow path 4a is about 2: 1 from the atomizer 5 side. If the amount of heating by the heating device 11 is sufficient, the air taken into the compressor 1 is heated by a part of the air whose temperature has been increased by cooling the generator 1, and the rest is discharged into the atmosphere. You can!
- the air sucked into the cooling air flow path 4a cools the compressor 1 and rises in temperature when passing through the generator 4, and is sucked into the intake duct la, and the intake air flowing through the intake duct la is removed. Heat. As a result, the vaporizing ability of water droplets sprayed from the sprayer 5 into the air flowing through the intake duct la is increased.
- the amount of spray from the sprayer 5 can be increased, it has the characteristics indicated by “a” —b ”—c” d ”in FIG. Compared with the characteristics of 2, the power generation output can be increased and the power generation efficiency can be improved.
- the exhaust heat of the compressor 1 is used as a heating source of the heating device 11, a new heating source is not required, and power generation efficiency can be improved. Furthermore, since all of the heated air is supplied into the intake duct la, a sufficient amount of heating can be secured, and the power generation output can be increased and the power generation efficiency can be improved. Since the compressor 1 sucks in air for cooling the generator 1, it is also necessary to use a blower to supply cooling air to the generator 4. This eliminates the need for any auxiliary equipment, which can improve the efficiency of the gas turbine power generation equipment, reduce the number of parts, reduce costs, and reduce the size of the equipment.
- FIG. 3 is a configuration diagram of the gas turbine power generation equipment according to the second embodiment of the present invention.
- the second embodiment is different from the first embodiment as described below, and the other points are basically the same as the first embodiment.
- the spray device 9 includes a spray device 5, a temperature detector 8, a control valve 6, and a control device 7.
- the temperature detector 8 detects the temperature of the air sucked into the compressor 1, and specifically detects the temperature of the air on the suction side from the atomizer 5.
- the temperature detector 8 may detect the temperature of the air taken into the compressor 1 indirectly or may detect the temperature of the air taken into the intake duct la. There may be.
- the control valve 6 controls the amount of water supplied to the sprayer 5, and is specifically configured by an on-off valve that is controlled in two states, an open state and a closed state. It is installed on the way. Note that the control valve 6 may be of a type that can adjust the flow rate proportionally.
- the control device 7 controls the control valve 6 based on the temperature detected by the temperature detector 8 (outside air temperature). Specifically, when the outside air temperature is equal to or higher than T1 in FIG. 6 is opened, and the control valve 6 is closed below T1. The amount of water droplets sprayed from the sprayer 5 is set to the maximum amount at which the water droplets completely evaporate and the intake air can be sucked into the compressor 1 at the external temperature T1.
- the amount of evaporation of water droplets generally changes depending on the temperature of the intake air (outside air temperature). That is, as the outside air temperature increases, more water droplets evaporate. Therefore, if the spray amount is set to match the maximum amount of water droplets sprayed when the outside air temperature is high, the outside air temperature will be low! Some of the water droplets sprayed at that time do not evaporate, but enter the compressor 1 as they are, and may damage the blades of the compressor 1.
- the spraying device 9 controls spraying based on the temperature of the air sucked into the compressor 1, so that the outside air temperature is low! Can be prevented from entering the compressor 1.
- a '-b' -b “-c"- d " it is possible to increase the power generation output and the power generation efficiency as compared with the characteristics of the conventional technology 1 at an outside air temperature T1 below the characteristics of the conventional technology 1, and at the outside air temperature T1 or more, the conventional technologies 1, 2 As compared with the characteristics described above, the power generation output can be increased and the power generation efficiency can be improved, and the reliability of the compressor 1 can be ensured.
- the cooling air flow path 4a is not communicated with the intake duct la and the function of the heating device 11 is not used, and the water droplet is completely evaporated at the external temperature T2 and the intake air is sucked into the compressor 1.
- the control valve 6 is opened at an outside temperature T2 or higher and the control valve 6 is closed at a temperature lower than T2, the characteristics indicated by a--b--cc'd 'in FIG. 2 can be obtained.
- the outside temperature is T2 or more, the power generation output and the power generation efficiency can be increased as compared with the characteristics of the conventional technology 1 and the power can also ensure the reliability of the compressor 1. is there.
- third to fifth embodiments of the present invention will be described with reference to FIGS.
- the third to fifth embodiments are different from the first embodiment as described below, and the other points are basically the same as the first embodiment.
- FIG. 4 is a configuration diagram of a gas turbine power generation facility according to a third embodiment of the present invention.
- the outlet of the cooling air passage 4a of the generator 4 is connected to the vicinity of the atomizer 5 installed in the intake duct la of the compressor 1.
- the generator 4 is cooled, and the air having a temperature higher than that of the outside air flows near the atomizer 5 to promote the evaporation of the sprayed water droplets.
- FIG. 5 is a configuration diagram of a gas turbine power generation facility according to a fourth embodiment of the present invention.
- the outlet of the cooling air flow path 4a of the generator 4 is connected to a flow path for heat exchange with a water supply pipe 5a for supplying water to the sprayer 5.
- the air that has cooled the generator 4 and has become higher in temperature than the outside air flows through the flow path that exchanges heat with the water supply pipe 5a, and raises the temperature of the water flowing through the water supply pipe 5a, thereby The evaporation of water droplets can be promoted.
- FIG. 6 is a configuration diagram of a gas turbine power generation facility according to a fifth embodiment of the present invention.
- a part or all of a water supply pipe 5a for supplying water to the sprayer 5 is a multi-pipe 5b as shown in FIGS.
- the outlet of the cooling air passage 4a of the generator 4 is connected.
- the generator 4 is cooled, air having a higher temperature than the outside air flows through the pipes other than the pipe through which the water of the multiple pipe 5b flows, the temperature of the water flowing through the multiple pipe 5b increases, and the spray Can promote evaporation.
- the cross-sectional shape of the multi-tube 5b may be a concentric circular cross section as shown in Fig. 5, an eccentric circular cross section as shown in Fig. 6, or a polygonal cross section as shown in Fig. 7.
- FIGS. 1-10 a sixth embodiment of the present invention will be described with reference to FIGS.
- the sixth embodiment is different from the fourth embodiment as described below, and the other points are basically the same as the fourth embodiment.
- FIG. 10 is a configuration diagram of the gas turbine power generation equipment according to the sixth embodiment of the present invention.
- part or all of the outlet of the pipe through which the generator cooling air flows is connected to the intake duct la of the compressor 1 among the double pipes 5b constituting the multiple pipe.
- the generator 4 is cooled, and the air having a higher temperature than the outside air flows through a part of the water supply pipe 5a, which is a multi-pipe, and raises the temperature of the water flowing in the water supply pipe 5a.
- the generator cooling air which has undergone heat exchange with the water supplied to the sprayer 5 and has become low in temperature, can flow into the intake duct la.
- the temperature of the intake air of the compressor can be reduced, and the output of the gas turbine can be increased.
- the outlet of the cooling air becomes negative pressure, and the power of auxiliary equipment such as a blower for sending air is reduced, or the auxiliary equipment itself is used. Can be eliminated, and the efficiency of gas turbine power generation equipment can be improved, the number of parts can be reduced, and costs can be reduced.
- the double pipe 5b in the sixth embodiment is a double pipe as shown in FIG. 11, in which water flows through the inner pipe, and the outlet of the cooling air flow path 4a of the generator 4 is connected to the outer pipe. ing. This cools the generator 4 and increases the temperature of water flowing through the outer pipe of the double pipe 5b, which flows through the outer pipe of the double pipe 5b, where the temperature is higher than that of the outside air. Evaporation can be promoted.
- the cross-sectional shape of the double pipe 5b is concentric, but may be an eccentric circular cross section as shown in FIG. 12, or a polygonal cross section as shown in FIG.
- FIG. 2 is a characteristic diagram showing the output and efficiency of the gas turbine power generation equipment according to the conventional example and the present invention.
- FIG. 3 is a configuration diagram of a gas turbine power generation facility according to a second embodiment of the present invention.
- FIG. 4 is a configuration diagram of a gas turbine power generation facility according to a third embodiment of the present invention.
- FIG. 5 is a configuration diagram of a gas turbine power generation facility according to a fourth embodiment of the present invention.
- FIG. 6 is a configuration diagram of a gas turbine power generation facility according to a fifth embodiment of the present invention.
- FIG. 7 is a sectional view of the multiple tube of FIG. 5.
- FIG. 8 is a sectional view of a modified example of the multi-tube shown in FIG. 5.
- FIG. 9 is a cross-sectional view of still another modified example of the multiple tube in FIG. 5.
- FIG. 10 is a configuration diagram of a gas turbine power generation facility according to a sixth embodiment of the present invention.
- FIG. 11 is a cross-sectional view of the double pipe of FIG.
- FIG. 12 is a cross-sectional view of a modified example of the double pipe of FIG.
- FIG. 13 is a cross-sectional view of still another modified example of the double pipe of FIG. 10.
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- 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
Description
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004013778A JP4287754B2 (ja) | 2004-01-22 | 2004-01-22 | ガスタービン発電設備 |
JP2004-013778 | 2004-01-22 |
Publications (1)
Publication Number | Publication Date |
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WO2005071244A1 true WO2005071244A1 (ja) | 2005-08-04 |
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ID=34805397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/000682 WO2005071244A1 (ja) | 2004-01-22 | 2005-01-20 | ガスタービン発電設備 |
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JP (1) | JP4287754B2 (ja) |
WO (1) | WO2005071244A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020247886A1 (en) * | 2019-06-07 | 2020-12-10 | Saudi Arabian Oil Company | Cold recycle process for gas turbine inlet air cooling |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013194619A (ja) * | 2012-03-21 | 2013-09-30 | Mitsui Eng & Shipbuild Co Ltd | ガスタービン吸気凍結防止装置 |
EP2765282A1 (en) * | 2013-02-08 | 2014-08-13 | Alstom Technology Ltd | Power generating unit and method for operating such a power generating unit |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10184390A (ja) * | 1996-12-24 | 1998-07-14 | Hitachi Ltd | ガスタービンの吸気冷却装置 |
JP2002147253A (ja) * | 2000-11-09 | 2002-05-22 | Mitsubishi Heavy Ind Ltd | ガスタービン保護装置及び燃料制御装置 |
JP2002322916A (ja) * | 2001-04-26 | 2002-11-08 | Toshiba Corp | ガスタービン吸気冷却装置 |
JP2003090230A (ja) * | 2001-09-17 | 2003-03-28 | Takuma Co Ltd | ガスタービン発電装置及びこれに用いる混合ガス燃焼装置 |
JP2003097295A (ja) * | 2001-09-21 | 2003-04-03 | Hitachi Ltd | ガスタービン発電設備 |
-
2004
- 2004-01-22 JP JP2004013778A patent/JP4287754B2/ja not_active Expired - Fee Related
-
2005
- 2005-01-20 WO PCT/JP2005/000682 patent/WO2005071244A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10184390A (ja) * | 1996-12-24 | 1998-07-14 | Hitachi Ltd | ガスタービンの吸気冷却装置 |
JP2002147253A (ja) * | 2000-11-09 | 2002-05-22 | Mitsubishi Heavy Ind Ltd | ガスタービン保護装置及び燃料制御装置 |
JP2002322916A (ja) * | 2001-04-26 | 2002-11-08 | Toshiba Corp | ガスタービン吸気冷却装置 |
JP2003090230A (ja) * | 2001-09-17 | 2003-03-28 | Takuma Co Ltd | ガスタービン発電装置及びこれに用いる混合ガス燃焼装置 |
JP2003097295A (ja) * | 2001-09-21 | 2003-04-03 | Hitachi Ltd | ガスタービン発電設備 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020247886A1 (en) * | 2019-06-07 | 2020-12-10 | Saudi Arabian Oil Company | Cold recycle process for gas turbine inlet air cooling |
US11193421B2 (en) | 2019-06-07 | 2021-12-07 | Saudi Arabian Oil Company | Cold recycle process for gas turbine inlet air cooling |
Also Published As
Publication number | Publication date |
---|---|
JP2005207290A (ja) | 2005-08-04 |
JP4287754B2 (ja) | 2009-07-01 |
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