WO2017158636A1 - ガスタービン設備 - Google Patents
ガスタービン設備 Download PDFInfo
- Publication number
- WO2017158636A1 WO2017158636A1 PCT/JP2016/001446 JP2016001446W WO2017158636A1 WO 2017158636 A1 WO2017158636 A1 WO 2017158636A1 JP 2016001446 W JP2016001446 W JP 2016001446W WO 2017158636 A1 WO2017158636 A1 WO 2017158636A1
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- WO
- WIPO (PCT)
- Prior art keywords
- casing
- combustor
- combustion gas
- pipe
- carbon dioxide
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/26—Double casings; Measures against temperature strain in casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/42—Continuous combustion chambers using liquid or gaseous fuel characterised by the arrangement or form of the flame tubes or combustion chambers
- F23R3/44—Combustion chambers comprising a single tubular flame tube within a tubular casing
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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
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/34—Gas-turbine plants characterised by the use of combustion products as the working fluid with recycling of part of the working fluid, i.e. semi-closed cycles with combustion products in the closed part of the cycle
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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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
- F23R3/04—Air inlet arrangements
- F23R3/06—Arrangement of apertures along the flame tube
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
- F23R3/04—Air inlet arrangements
- F23R3/10—Air inlet arrangements for primary air
- F23R3/12—Air inlet arrangements for primary air inducing a vortex
- F23R3/14—Air inlet arrangements for primary air inducing a vortex by using swirl vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
- F23R3/26—Controlling the air flow
-
- 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
- F05D2260/213—Heat transfer, e.g. cooling by the provision of a heat exchanger within the cooling circuit
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- 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]
Definitions
- Embodiments of the present invention relate to gas turbine equipment.
- FIG. 8 is a system diagram of a conventional gas turbine installation 300.
- FIG. 9 is a view schematically showing a vertical cross section of a combustor 313 provided in the conventional gas turbine equipment 300. As shown in FIG. In the conventional gas turbine equipment 300, a turbine is operated using carbon dioxide and steam generated in the combustor as working fluid, and a part of carbon dioxide discharged from the turbine is circulated.
- oxygen separated from an air separator (not shown) is introduced into a pipe 340. Then, the oxygen is boosted by the compressor 310 and the flow rate is controlled by the flow rate adjustment valve 311. The oxygen that has passed through the flow rate adjustment valve 311 is heated in the heat exchanger 312 by receiving heat from a combustion gas described later, and is supplied to the combustor 313.
- the fuel is led to the pipe 341 from a fuel supply source (not shown). Then, the fuel is adjusted in flow rate by the flow rate adjustment valve 314 and supplied to the combustor 313.
- This fuel is a hydrocarbon.
- the oxygen supplied from the pipe 340 and the fuel supplied from the pipe 341 react (combust) in the combustor 313.
- This combustion produces a combustion gas containing carbon dioxide and water vapor.
- the flow rates of fuel and oxygen are adjusted so as to be in the stoichiometric mixing ratio (theoretical mixing ratio) in a state in which each is completely mixed.
- the combustion gas generated by the combustor 313 is introduced into the turbine 315.
- a generator 319 is connected to the turbine 315, for example.
- the combustion gas that has performed expansion work in the turbine 315 passes through the heat exchanger 312. At this time, heat is released to heat the oxygen flowing through the pipe 340 and the carbon dioxide flowing through the pipe 343.
- the combustion gas having passed through the heat exchanger 312 passes through the cooler 316. At this time, the water vapor in the combustion gas condenses to be water. Water is discharged to the outside through the pipe 342.
- the carbon dioxide separated from the water vapor is pressurized by the compressor 317 interposed in the pipe 343 and becomes a supercritical fluid.
- a portion of the pressurized carbon dioxide is introduced into a pipe 344 branched from the pipe 343.
- the carbon dioxide introduced into the pipe 344 is adjusted in flow rate by the flow rate adjustment valve 318 and extracted outside.
- the remainder of the carbon dioxide flows through the pipe 343. Then, the carbon dioxide is heated in the heat exchanger 312 and is supplied into the combustor casing 350 containing the combustor 313, as shown in FIG.
- the temperature of carbon dioxide that has passed through the heat exchanger 312 is about 700.degree.
- the combustor casing 350 is configured of an upstream side casing 351a and a downstream side casing 351b.
- the carbon dioxide introduced into the upstream casing 351 a flows toward the turbine 315 between the downstream casing 351 b and the combustor liner 352 and the transition piece 353 (tail sleeve).
- the carbon dioxide cools the combustor liner 352 and the transition piece 353.
- These coolings are performed by, for example, porous membrane cooling. Part of the carbon dioxide is introduced into the combustor liner 352 and the transition piece 353 from the holes 354 and 356 of the porous film cooling unit and the dilution holes 355 as shown in FIG.
- the carbon dioxide is also used to cool the stationary blades 360 and the blades 361 of the turbine 315.
- the carbon dioxide introduced into the combustor liner 352 and into the transition piece 353 is introduced into the turbine 315 together with the combustion gas generated by the combustion. In this manner, carbon dioxide other than that discharged from the pipe 344 circulates in the system.
- the upstream side casing 351a and the downstream side casing 351b are exposed to high temperature carbon dioxide. Therefore, the upstream side casing 351a and the downstream side casing 351b are made of an expensive Ni-based alloy.
- the combustor casing 350 exposed to high temperature carbon dioxide must be constructed of an expensive Ni-based alloy. Therefore, the manufacturing cost of the gas turbine equipment increases.
- the problem to be solved by the present invention is to provide a gas turbine installation capable of forming a casing provided around the combustor with an inexpensive material.
- the gas turbine equipment includes a casing, a combustor provided in the casing for burning fuel and an oxidant, surrounding the periphery of the combustor, and a space between the casing and the combustor. It has a cylinder which divides and a turbine rotated by combustion gas discharged from the burner.
- the gas turbine equipment heats the heat exchanger for cooling the combustion gas discharged from the turbine, and a part of the combustion gas cooled by the heat exchanger through the heat exchanger, and the cylinder body And a low temperature combustion gas supply pipe for guiding another portion of the combustion gas cooled by the heat exchanger between the casing and the cylinder, and a heat exchanger for cooling the low temperature combustion gas supply pipe. And a discharge pipe for discharging the remaining portion of the combustion gas to the outside.
- FIG. 6 is a cross section corresponding to the cross section AA of FIG.
- FIG. 6 is a cross section corresponding to the B-B cross section of FIG. 5 and is a view showing a part of another flow path in a combustor casing of a gas turbine installation of a second embodiment. It is a systematic diagram of the conventional gas turbine installation. It is the figure which showed typically the longitudinal cross-section of the combustor provided in the conventional gas turbine installation.
- FIG. 1 is a system diagram of a gas turbine installation 10 according to a first embodiment.
- the gas turbine equipment 10 includes a combustor 20 for burning fuel and an oxidant, a pipe 40 for supplying the fuel to the combustor 20, and a pipe 41 for supplying the oxidant to the combustor 20.
- the pipe 40 is provided with a flow control valve 21 that adjusts the flow rate of the fuel supplied to the combustor 20.
- hydrocarbons such as methane and natural gas are used as the fuel, for example.
- a coal gasification gas fuel containing, for example, carbon monoxide and hydrogen can be used.
- the pipe 41 is provided with a flow control valve 22 for adjusting the flow rate of the oxidant supplied to the combustor 20.
- the pipe 41 is provided with a compressor 23 for pressurizing the oxidant.
- oxygen separated from the atmosphere by an air separation device (not shown) is used. The oxidant flowing through the pipe 41 is heated through the heat exchanger 24 and supplied to the combustor 20.
- the fuel and the oxidant led to the combustor 20 react (combustion) in the combustion region to become combustion gas.
- the flow rates of the fuel and the oxidant are adjusted to be, for example, the stoichiometric mixing ratio (equivalent ratio 1).
- the equivalent ratio referred to here is an equivalent ratio (equivalent ratio in overall) when it is assumed that fuel and oxygen are uniformly mixed.
- the gas turbine equipment 10 includes a turbine 25 which is rotated by the combustion gas discharged from the combustor 20.
- a generator 26 is connected to the turbine 25, for example.
- the combustion gas discharged from the combustor 20 is a combustion product generated by the fuel and the oxidant, and carbon dioxide (combustion gas from which water vapor has been removed) supplied to the combustor 20 as described later. Is included.
- the combustion gas discharged from the turbine 25 is led to the pipe 42 and cooled by passing through the heat exchanger 24. At this time, the oxidant flowing through the pipe 41 and the carbon dioxide flowing through the pipe 42 are heated by the heat released from the combustion gas.
- the combustion gas that has passed through the heat exchanger 24 passes through the cooler 27.
- the combustion gas passes through the cooler 27 to remove the water vapor contained in the combustion gas.
- the water vapor in the combustion gas condenses into water. This water is discharged to the outside through, for example, the pipe 43.
- the component of the combustion gas (dry combustion gas) from which the water vapor is removed is substantially carbon dioxide It is carbon.
- the combustion gas from which water vapor is removed may contain, for example, a trace amount of carbon monoxide of 0.2% or less, but hereinafter, the combustion gas from which water vapor is removed is simply referred to as carbon dioxide.
- the carbon dioxide is pressurized by the compressor 28 interposed in the pipe 42 to become a supercritical fluid. A portion of the pressurized carbon dioxide flows through the pipe 42 and is heated in the heat exchanger 24. Then, the carbon dioxide is introduced into the cylinder 80 surrounding the combustor 20. The temperature of carbon dioxide that has passed through the heat exchanger 24 will be about 700.degree.
- the pipe 42 for guiding the high temperature carbon dioxide into the cylinder 80 functions as a high temperature combustion gas supply pipe.
- Another part of the pressurized carbon dioxide is introduced into the pipe 44 branched from the pipe 42.
- the flow rate of carbon dioxide introduced into the pipe 44 is adjusted by the flow control valve 29 and is introduced as a cooling medium between the combustor casing 70 and the cylinder 80.
- the temperature of carbon dioxide introduced between the combustor casing 70 and the cylinder 80 by the pipe 44 is about 400.degree.
- the pipe 44 functions as a low temperature combustion gas supply pipe.
- the remainder of the pressurized carbon dioxide is introduced into the pipe 45 branched from the pipe 42.
- the flow rate of the carbon dioxide introduced into the pipe 45 is adjusted by the flow control valve 30, and the carbon dioxide is discharged to the outside.
- the pipe 45 functions as a discharge pipe.
- the carbon dioxide emitted to the outside can be used, for example, for EOR (Enhanced Oil Recovery) adopted at oil mining sites.
- FIG. 2 is the figure which showed typically the longitudinal cross-section of the combustor 20 and the combustor casing 70 which are provided in the gas turbine installation 10 of 1st Embodiment.
- the combustor 20 includes a fuel nozzle portion 60, a combustor liner 61 and a transition piece 62 (tail sleeve).
- the fuel nozzle unit 60 ejects the fuel supplied from the pipe 40 and the oxidant supplied from the pipe 41 into the combustor liner 61. For example, fuel is ejected from the center and oxidant is ejected from the periphery.
- the combustor 20 is housed inside the combustor casing 70.
- the combustor casing 70 is provided along the longitudinal direction of the combustor 20 so as to surround the combustor 20.
- the combustor casing 70 is divided into, for example, two in the longitudinal direction of the combustor 20.
- the combustor casing 70 includes, for example, an upstream side upstream casing 71 and a downstream side downstream casing 72.
- the combustor casing 70 functions as a casing.
- the upstream side casing 71 is, for example, a cylinder whose one end (upstream end) is closed and the other end (downstream end) is opened. At the center of one end, an opening 71a for inserting the fuel nozzle portion 60 is formed. Further, a pipe 44 is connected to the side portion of the upstream casing 71. The pipe 44 is, for example, fitted in and joined to an opening 71 b formed in the side portion of the upstream casing 71.
- the downstream side casing 72 is comprised by the cylinder which both ends opened. One end of the downstream side casing 72 is connected to the upstream side casing 71, and the other end of the downstream side casing 72 is connected to, for example, a casing surrounding the turbine 25.
- a cylinder 80 surrounding the combustor 20 and defining a space between the combustor casing 70 and the combustor 20.
- a predetermined space is provided between the combustor 20 and the cylindrical body 80.
- One end (upstream end) of the cylindrical body 80 is closed, and an opening 81 for inserting the fuel nozzle portion 60 is formed.
- the other end (downstream end) of the cylindrical body 80 is closed, and an opening 82 is formed to penetrate the downstream end of the transition piece 62.
- the cylindrical body 80 is formed, for example, by joining a plate-like lid member 80a having an opening 71a to a cylindrical main body member 80b.
- the cylinder 80 is assembled as follows, for example.
- the fuel nozzle portion 60 is made to penetrate the opening 71a of the lid member 80a.
- the combustor casing 70 provided with the fuel nozzle portion 60 is inserted into the main body member 80b.
- the lid member 80a is joined to the main body member 80b.
- the assembly configuration of the cylindrical body 80 is not limited to this. As long as the cylindrical body 80 is a structure surrounding the periphery of the combustor 20 as shown in FIG. 2, the assembly configuration of the cylindrical body 80 is not limited.
- the inner circumferential surface of the opening 82 on the downstream side of the cylindrical body 80 is in contact with the outer circumferential surface of the downstream end of the transition piece 62.
- a pipe 42 is connected to the upstream side portion of the cylindrical body 80.
- the pipe 42 passes through the inside of the pipe 44 connected to the side portion of the upstream casing 71 and is connected to the side portion of the cylindrical body 80, as shown in FIG.
- the part where the pipe 42 penetrates the inside of the pipe 44 has a double pipe structure.
- the pipe 42 is, for example, inserted into the pipe 44 through an opening 44 a formed in the pipe 44. And the piping 42 is joined with the piping 44 in the opening part which has the opening 44a. Further, the double pipe structure of the pipe 42 and the pipe 44 is not limited to one, and a plurality of pipes may be possessed in the circumferential direction.
- the carbon dioxide introduced into the cylinder 80 from the pipe 42 flows downstream in the annular space between the combustor liner 61 and the cylinder 80. At this time, the carbon dioxide cools the combustor liner 61 and the transition piece 62.
- carbon dioxide is introduced into the combustor liner 61 and into the transition piece 62 from the burner liner 61 and the transition piece 62, for example, the holes 63 and 64 and the dilution holes 65 of the porous film cooling unit.
- the entire amount of carbon dioxide introduced from the pipe 42 is introduced into the combustor liner 61 and into the transition piece 62.
- the carbon dioxide introduced into the combustor liner 61 and into the transition piece 62 is introduced into the turbine 25 together with the combustion gas generated by the combustion.
- the temperature of carbon dioxide introduced from the pipe 42 is about 700.degree.
- the temperature of this carbon dioxide is lower than the temperature of the combustion gas to which the combustor liner 61 and the transition piece 62 are exposed. Therefore, the combustor liner 61 and the transition piece 62 are sufficiently cooled by the carbon dioxide. Furthermore, since the temperature of carbon dioxide is about 700 ° C., the carbon dioxide introduced into the combustor liner 61 does not deteriorate the combustion state.
- the carbon dioxide introduced from the pipe 42 is introduced into the turbine 25 without flowing out from the cylindrical body 80 surrounding the periphery of the combustor 20 to the combustor casing 70 side.
- the low temperature carbon dioxide flowing through the pipe 44 is led to a double pipe constituted by the pipe 42 and the pipe 44.
- the carbon dioxide introduced into the double pipe passes through the pipe 44 and is introduced between the combustor casing 70 and the cylinder 80.
- the carbon dioxide introduced into the double pipe passes through the annular passage between the pipe 42 and the pipe 44 and is introduced between the combustor casing 70 and the cylindrical body 80.
- the carbon dioxide flowing between the pipe 42 and the pipe 44 cools the joint portion between the pipe 42 and the pipe 44 and the pipe 42 penetrating through the pipe 44.
- low temperature carbon dioxide flows around the piping 42, heat transfer from the piping 42 through which high temperature carbon dioxide flows to the combustor casing 70 is suppressed.
- the carbon dioxide introduced between the combustor casing 70 and the cylinder 80 flows downstream in the annular space between the combustor casing 70 and the cylinder 80. At this time, the carbon dioxide cools the combustor casing 70 and the cylinder 80.
- the carbon dioxide is also used, for example, to cool the stationary blades 85 and the moving blades 86 of the turbine 25. Such cooling causes the temperature of the combustor casing 70 to be, for example, 400 ° C. or less.
- the combustor casing 70 is cooled by the low temperature carbon dioxide without being exposed to the high temperature carbon dioxide. Therefore, the combustor casing 70 is made of, for example, an Fe (iron) -based heat-resistant steel such as CrMoV steel or CrMo steel.
- the combustor casing 70 is exposed to high temperature carbon dioxide. It will not be done. Further, by flowing low temperature carbon dioxide between the combustor casing 70 and the cylindrical body 80, the temperature rise of the combustor casing 70 can be suppressed.
- the combustor casing 70 can be made of, for example, inexpensive Fe-based heat resistant steel. Therefore, the manufacturing cost of the gas turbine equipment 10 can be reduced.
- FIG. 3 is the figure which showed typically the longitudinal cross-section of the combustor 20 provided in the gas turbine installation 10 of 1st Embodiment, and the combustor casing 70 of another structure.
- FIG. 3 shows an example when such a double casing structure is adopted.
- the combustor casing 70 includes, for example, an upstream side casing 71 on the upstream side and a downstream side casing 72 on the downstream side.
- the downstream casing 72 includes an outer casing 90 and an inner casing 91 inside thereof.
- a cylindrical sleeve 92 is provided on the inner circumference between the outer casing 90 and the inner casing 91 along the longitudinal direction of the combustor 20.
- annular seal ring 93 is fitted between the sleeve 92 and the inner casing 91.
- the seal ring 93 By providing the seal ring 93, leakage of carbon dioxide from between the outer casing 90 and the inner casing 91 is prevented.
- the outer casing 90 and the sleeve 92 are connected to the downstream end surface of the upstream casing 71.
- the low temperature carbon dioxide introduced between the combustor casing 70 and the cylinder 80 is downstream between the cylinder 80 and the upstream casing 71, the sleeve 92 and the inner casing 91. Flow toward At that time, the low temperature carbon dioxide cools the upstream side casing 71, the cylinder 80, the sleeve 92, and the inner casing 91.
- the upstream side casing 71, the sleeve 92, and the inner casing 91 can be made of, for example, inexpensive Fe-based heat resistant steel.
- the outer casing 90 provided on the outer circumferential side of the sleeve 92 and the inner casing 91 can also be made of inexpensive heat resistant steel based on Fe.
- FIG. 4 is a system diagram of the gas turbine equipment 11 according to the second embodiment.
- FIG. 5 is the figure which showed typically the longitudinal cross-section of the combustor 20 and the combustor casing 70 which are provided in the gas turbine installation 11 of 2nd Embodiment.
- symbol is attached
- a portion of the carbon dioxide pressurized by the compressor 28 flows through the pipe 42 and is heated in the heat exchanger 24.
- the carbon dioxide is then introduced into the inner space 100 partitioned by the cylinder 130.
- the pipe 42 functions as a high temperature combustion gas supply pipe.
- the pipe 44 is connected to the combustor casing 70 that forms the inner space 100. Although described in detail later, the pipe 44 is in communication with the flow passage formed inside the thick wall of the combustor casing 70 forming the inner space 100.
- the carbon dioxide introduced into the pipe 44 is introduced into the flow path as a cooling medium.
- the flow passage communicates with the outer space 101 partitioned by the cylinder 130.
- the pipe 44 functions as a low temperature combustion gas supply pipe.
- a cylinder 130 is provided between the combustor casing 70 and the combustor 20 to partition this space.
- the cylindrical body 130 is provided between the combustor casing 70 and the combustor 20 along the longitudinal direction of the combustor 20.
- One end (upstream end) of the cylindrical body 130 is open. Further, one end of the cylindrical body 130 has, for example, an annular portion 131 bent toward the outer peripheral side.
- the outer peripheral surface 131 a of the annular portion 131 is, for example, joined to the inner peripheral surface of the upstream side casing 71.
- the other end (downstream end) of the cylindrical body 130 is closed, and an opening 132 is formed to penetrate the downstream end of the transition piece 62.
- the inner circumferential surface of the opening 132 on the downstream side of the cylindrical body 130 is in contact with the outer circumferential surface of the downstream end of the transition piece 62.
- the cylindrical body 130 divides the space between the combustor casing 70 and the combustor 20 into the inner space 100 and the outer space 101.
- the inner space 100 is a space on the side of the combustor liner 61 (on the side of the fuel nozzle portion 60) divided by the cylinder 130.
- the inner space 100 is also formed by the inner surface of a part of the upstream side casing 71.
- the outer space 101 is a space on the side of the combustor casing 70 divided by the cylindrical body 130.
- an opening 71a for inserting the fuel nozzle portion 60 is formed. Further, a flow passage 110 communicating with the outer space 101 is formed in the thick-walled inside of the upstream side casing 71.
- the flow path 110 is in communication with the pipe 44 through an opening 74 formed in one end surface 73 of the upstream side casing 71.
- the outlet 111 of the flow passage 110 is open to the outer space 101.
- the outlet 111 is, for example, in the form of a slit or a plurality of holes.
- the portion of the upstream casing 71 having the flow passage 110 functions as a flow passage forming portion 78.
- the thick inner portion of the upstream side casing 71 is a thick portion between the inner surface and the outer surface of the upstream side casing 71.
- a pipe 42 is connected to the upstream side of the upstream casing 71.
- the pipe 42 communicates with the inner space 100. That is, the position where the pipe 42 is connected is on the upstream side of the position where the annular portion 131 of the cylindrical body 130 is connected to the inner circumferential surface of the upstream casing 71.
- the pipe 42 is connected, for example, through the flow path forming portion 78.
- the structure of the flow path 110 in the thickness inside of the upstream side casing 71 is not restricted to an above-described structure.
- the structure of the flow path 110 may be any structure that can cool the upstream side casing 71 facing the inner space 100 and to which the pipe 42 is connected by the low temperature carbon dioxide flowing in the flow path 110.
- the structure of the flow path 110 may be any structure that guides the carbon dioxide having passed through the flow path 110 to the outer space 101.
- the upstream side casing 71 is formed, for example, by joining two cylindrical structures of an inner structure 75 and an outer structure 76.
- the upstream casing 71 is formed, for example, as follows.
- the annular ring 77 is held between the inner structural body 75 and the outer structural body 76 at a portion constituting the opening 71a into which the fuel nozzle portion 60 is inserted, and welding is performed from the inner surface side of the opening 71a.
- An annular ring is sandwiched between the inner structure 75 and the outer structure 76 in a portion constituting the outlet 111 of the flow passage 110, and welding is performed from the inner surface side of the upstream casing 71.
- the annular ring forming the outlet 111 is formed with a slit, a hole, and the like.
- a gap of a predetermined distance is formed between the inner structural body 75 and the outer structural body 76. That is, the flow passage 110 is formed in the thick-walled inside of the upstream side casing 71.
- a through hole for inserting the pipe 42 is processed. Then, the pipe 42 is inserted into the through hole, and for example, welding is performed from the inside of the upstream side casing 71 and the outside of the upstream side casing 71.
- the formation method of the flow path 110 in the thickness inside of the upstream side casing 71 is not restricted to an above-described method. That is, as long as the flow path 110 can be formed in the thick-walled interior of the upstream side casing 71, any other method may be used.
- the carbon dioxide introduced into the inner space 100 from the pipe 42 flows downstream in the annular space between the combustor liner 61 and the cylinder 130. At this time, the carbon dioxide cools the combustor liner 61 and the transition piece 62.
- the carbon dioxide is introduced into the combustor liner 61 and the transition piece 62 as described in the first embodiment. At this time, the combustor liner 61 and the transition piece 62 are cooled. The entire amount of carbon dioxide introduced from the pipe 42 is introduced into the combustor liner 61 or into the transition piece 62.
- the low temperature carbon dioxide flowing through the pipe 44 is led to the flow path 110 through the opening 74 of the upstream casing 71.
- the carbon dioxide introduced into the flow path 110 flows toward the outlet 111 while spreading throughout the flow path 110. At this time, carbon dioxide cools the upstream casing 71.
- the carbon dioxide flowing through the flow path 110 also flows around the pipe 42 penetrating the flow path forming portion 78. Therefore, the heat conduction from the piping 42 through which the high temperature carbon dioxide flows to the upstream casing 71 is suppressed.
- the carbon dioxide is also used, for example, to cool the stationary blades 85 and the moving blades 86 of the turbine 25. By such cooling, the temperature of the combustor casing 70 (the upstream casing 71 and the downstream casing 72) becomes, for example, 400 ° C. or less.
- the combustor casing 70 By flowing low temperature carbon dioxide in the flow path 110, it is possible to suppress an increase in temperature of the upstream casing 71 exposed to high temperature carbon dioxide. Furthermore, the combustor casing 70 facing the outer space 101 is cooled by the low temperature carbon dioxide without being exposed to the high temperature carbon dioxide. Therefore, the combustor casing 70 is made of, for example, an Fe (iron) -based heat-resistant steel such as CrMoV steel or CrMo steel.
- the gas turbine equipment 11 of the second embodiment by providing the flow path 110, it is possible to suppress an increase in temperature of the upstream casing 71 exposed to high temperature carbon dioxide. Moreover, by providing the cylinder 130, the combustor casing 70 facing the outer space 101 is not exposed to high temperature carbon dioxide. Further, by flowing low temperature carbon dioxide into the outer space 101, an increase in temperature of the combustor casing 70 can be suppressed.
- the combustor casing 70 can be made of, for example, inexpensive Fe-based heat resistant steel. Therefore, the manufacturing cost of the gas turbine equipment 10 can be reduced.
- the configuration of the flow channel 110 is not limited to the above-described configuration.
- 6 is a cross section corresponding to the cross section AA of FIG. 5 and is a view showing a part of another flow path 110 in the combustor casing 70 of the gas turbine equipment 11 of the second embodiment.
- FIG. 7 is a cross section corresponding to the B-B cross section of FIG. 5 and is a view showing a part of another flow passage 110 in the combustor casing 70 of the gas turbine equipment 11 of the second embodiment.
- a plurality of flow path walls 120, 121, 122 may be provided in the flow path 110.
- the flow path walls 120, 121, 122 are formed of, for example, plate-like ribs.
- the heights of the flow path walls 120, 121, 122 correspond to the distance between the inner structure 75 and the outer structure 76.
- the flow path wall 120 divides the space between the internal structure 75 and the external structure 76 into a plurality of concentric flow paths. And the flow path 110 is divided into the left half side and the right half side, for example, by the flow path wall 121 provided in the diameter direction.
- a plurality of flow path walls 122 are provided at predetermined intervals in the flow path 110 on the side.
- the row of the flow path walls 122 provided in such a circumferential direction is provided in a plurality of stages in the longitudinal direction of the flow path 110 (the longitudinal direction of the combustor 20).
- the position of the flow path between the flow path walls 122 in the circumferential direction is shifted in the circumferential direction with respect to the position of the flow path in the adjacent row.
- carbon dioxide can be prevented from flowing linearly in the longitudinal direction without spreading in the circumferential direction.
- the carbon dioxide introduced into the flow channel 110 from the opening 74 of the upstream casing 71 passes around the flow channels on the left half side and the right half side as shown in FIG. It flows from the inside to the outside while flowing in the direction.
- the carbon dioxide that has flowed into the outer peripheral flow channel turns in the longitudinal direction (longitudinal direction of the combustor 20) and flows toward the outlet 111. At this time, as shown in FIG. 7, carbon dioxide flows in the longitudinal direction while expanding in the circumferential direction between the flow path walls 122. Then, it flows out to the outer space 101 from the outlet 111.
- the arrangement configuration of the flow path walls 120, 121, 122 is not limited to the above-described configuration.
- the arrangement configuration of the flow path walls 120, 121, 122 may be any structure that guides the carbon dioxide introduced into the flow path 110 so as to spread throughout the flow path 110.
- a through hole may be formed to penetrate from the external structure 76 to the internal structure 75 via the flow path wall 122.
- the pipe 42 is joined to the side surface of the external structure 76 so as to communicate with the through hole.
- oxygen which is an oxidizing agent is supplied to the combustor 20 via the pipe 41
- the present invention is not limited to this configuration.
- a part of carbon dioxide pressurized by the compressor 28 may be supplied into the pipe 41.
- a new pipe branched from the pipe 42 on the downstream side of the compressor 28 is provided.
- the branched pipe is connected to the pipe 41, for example, between the flow control valve 22 and the heat exchanger 24, as shown in FIG. That is, a mixed gas consisting of an oxidant and carbon dioxide is led to the combustor 20. The mixed gas is heated by passing through the heat exchanger 24.
- the casing provided around the combustor can be made of an inexpensive material.
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Abstract
Description
図1は、第1の実施の形態のガスタービン設備10の系統図である。図1に示すように、ガスタービン設備10は、燃料と酸化剤を燃焼させる燃焼器20と、この燃焼器20に燃料を供給する配管40と、燃焼器20に酸化剤を供給する配管41を備えている。
図4は、第2の実施の形態のガスタービン設備11の系統図である。図5は、第2の実施の形態のガスタービン設備11に設けられる燃焼器20および燃焼器ケーシング70の縦断面を模式的に示した図である。なお、第1の実施の形態のガスタービン設備10の同一の構成部分には同一の符号を付して、重複する説明を省略または簡略する。
Claims (4)
- ケーシングと、
前記ケーシング内に設けられ、燃料と酸化剤を燃焼させる燃焼器と、
前記燃焼器の周囲を包囲し、前記ケーシングと前記燃焼器との間の空間を区画する筒体と、
前記燃焼器から排出された燃焼ガスによって回動されるタービンと、
前記タービンから排出された前記燃焼ガスを冷却する熱交換器と、
前記熱交換器で冷却された前記燃焼ガスの一部を前記熱交換器を通して加熱し、前記筒体内に導く高温燃焼ガス供給管と、
前記熱交換器で冷却された前記燃焼ガスの他の一部を前記ケーシングと前記筒体との間に導く低温燃焼ガス供給管と、
前記熱交換器で冷却された前記燃焼ガスの残部を外部に排出する排出管と
を具備することを特徴とするガスタービン設備。 - 前記高温燃焼ガス供給管が、前記低温燃焼ガス供給管内を貫通し、
前記低温燃焼ガス供給管が、前記ケーシングに連結され、
前記低温燃焼ガス供給管を流れる前記燃焼ガスが、前記高温燃焼ガス供給管と前記低温燃焼ガス供給管との間を通り、前記ケーシングと前記筒体との間に導かれることを特徴とする請求項1記載のガスタービン設備。 - ケーシングと、
前記ケーシング内に設けられ、燃料と酸化剤を燃焼させる燃焼器と、
前記ケーシングと前記燃焼器との間に長手方向に設けられ、前記ケーシングと前記燃焼器との間の空間を外側空間と内側空間とに区画する筒体と、
前記燃焼器から排出された燃焼ガスによって回動されるタービンと、
前記タービンから排出された前記燃焼ガスを冷却する熱交換器と、
前記熱交換器で冷却された前記燃焼ガスの一部を前記熱交換器を通して加熱し、前記内側空間に導く高温燃焼ガス供給管と、
前記内側空間を形成する前記ケーシングの肉厚内部に形成され、前記外側空間に連通する流路と、
前記熱交換器で冷却された前記燃焼ガスの他の一部を前記流路に導く低温燃焼ガス供給管と、
前記熱交換器で冷却された前記燃焼ガスの残部を外部に排出する排出管と
を具備することを特徴とするガスタービン設備。 - 前記高温燃焼ガス供給管が、前記ケーシングの、前記流路を有する流路形成部を貫通して連結されていることを特徴とする請求項3記載のガスタービン設備。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/001446 WO2017158636A1 (ja) | 2016-03-14 | 2016-03-14 | ガスタービン設備 |
| DE112016006587.6T DE112016006587B4 (de) | 2016-03-14 | 2016-03-14 | Gasturbineneinrichtung |
| JP2017512842A JP6334817B2 (ja) | 2016-03-14 | 2016-03-14 | ガスタービン設備 |
| US15/678,167 US10738657B2 (en) | 2016-03-14 | 2017-08-16 | Gas turbine facility exhaust gas supply heat exchange arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/001446 WO2017158636A1 (ja) | 2016-03-14 | 2016-03-14 | ガスタービン設備 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US15/678,167 Continuation US10738657B2 (en) | 2016-03-14 | 2017-08-16 | Gas turbine facility exhaust gas supply heat exchange arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017158636A1 true WO2017158636A1 (ja) | 2017-09-21 |
Family
ID=59851031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2016/001446 Ceased WO2017158636A1 (ja) | 2016-03-14 | 2016-03-14 | ガスタービン設備 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10738657B2 (ja) |
| JP (1) | JP6334817B2 (ja) |
| DE (1) | DE112016006587B4 (ja) |
| WO (1) | WO2017158636A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020051665A (ja) * | 2018-09-26 | 2020-04-02 | 株式会社東芝 | タービン設備及び燃焼器ノズル |
| JP2024523393A (ja) * | 2021-07-01 | 2024-06-28 | シーメンス エナジー グローバル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | 水素燃焼室システム、方法および設備 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7335038B2 (ja) * | 2019-11-08 | 2023-08-29 | 東芝エネルギーシステムズ株式会社 | ガスタービン燃焼器構造体 |
| JP2022003243A (ja) * | 2020-06-23 | 2022-01-11 | 東芝エネルギーシステムズ株式会社 | ガスタービン設備 |
| EP4001754A1 (en) * | 2020-11-23 | 2022-05-25 | Universiteit Antwerpen | Vortex chamber |
| JP7725252B2 (ja) * | 2021-06-21 | 2025-08-19 | 東芝エネルギーシステムズ株式会社 | ガスタービン燃焼器の運転方法 |
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| JPH11257660A (ja) * | 1998-03-12 | 1999-09-21 | Toshiba Corp | 燃焼装置 |
| JP2016008590A (ja) * | 2014-06-26 | 2016-01-18 | 株式会社東芝 | ガスタービン設備 |
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| JP2000337107A (ja) | 1999-05-27 | 2000-12-05 | Mitsubishi Heavy Ind Ltd | クローズドガスタービンプラント |
| US6871503B1 (en) * | 1999-10-20 | 2005-03-29 | Hitachi, Ltd. | Gas turbine combustor with fuel-air pre-mixer and pre-mixing method for low nox combustion |
| CA2862656C (en) * | 2011-12-31 | 2019-10-08 | Rolls-Royce Corporation | Flow splitter for a fluid system of a gas turbine engine |
-
2016
- 2016-03-14 JP JP2017512842A patent/JP6334817B2/ja active Active
- 2016-03-14 WO PCT/JP2016/001446 patent/WO2017158636A1/ja not_active Ceased
- 2016-03-14 DE DE112016006587.6T patent/DE112016006587B4/de active Active
-
2017
- 2017-08-16 US US15/678,167 patent/US10738657B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11257660A (ja) * | 1998-03-12 | 1999-09-21 | Toshiba Corp | 燃焼装置 |
| JP2016008590A (ja) * | 2014-06-26 | 2016-01-18 | 株式会社東芝 | ガスタービン設備 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020051665A (ja) * | 2018-09-26 | 2020-04-02 | 株式会社東芝 | タービン設備及び燃焼器ノズル |
| JP2024523393A (ja) * | 2021-07-01 | 2024-06-28 | シーメンス エナジー グローバル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | 水素燃焼室システム、方法および設備 |
| JP7695413B2 (ja) | 2021-07-01 | 2025-06-18 | シーメンス エナジー グローバル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | 水素燃焼室システム、方法および設備 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20170342860A1 (en) | 2017-11-30 |
| DE112016006587T5 (de) | 2018-12-13 |
| US10738657B2 (en) | 2020-08-11 |
| JP6334817B2 (ja) | 2018-05-30 |
| JPWO2017158636A1 (ja) | 2018-04-05 |
| DE112016006587B4 (de) | 2025-07-10 |
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