WO2016000994A1 - Procédé et dispositif de balayage et/ou de blocage d'au moins un brûleur d'une installation à turbine à gaz - Google Patents

Procédé et dispositif de balayage et/ou de blocage d'au moins un brûleur d'une installation à turbine à gaz Download PDF

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Publication number
WO2016000994A1
WO2016000994A1 PCT/EP2015/063962 EP2015063962W WO2016000994A1 WO 2016000994 A1 WO2016000994 A1 WO 2016000994A1 EP 2015063962 W EP2015063962 W EP 2015063962W WO 2016000994 A1 WO2016000994 A1 WO 2016000994A1
Authority
WO
WIPO (PCT)
Prior art keywords
burner
compressor
rinsing
air
fluid line
Prior art date
Application number
PCT/EP2015/063962
Other languages
German (de)
English (en)
Inventor
Andreas Waruschewski
Ismail BELKAHLA
Volker Ertle
Kirjiakos GALANAKIS
Gülsen SCHYMETZKO
James Smith
Patrick WÜNSCHE
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2016000994A1 publication Critical patent/WO2016000994A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/02—Liquid fuel
    • F23K5/14—Details thereof
    • F23K5/18—Cleaning or purging devices, e.g. filters
    • 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
    • F02C7/22—Fuel supply systems
    • F02C7/232—Fuel valves; Draining valves or systems
    • 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
    • F05D2260/60—Fluid transfer
    • F05D2260/602—Drainage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2300/00—Pretreatment and supply of liquid fuel
    • F23K2300/20—Supply line arrangements
    • F23K2300/203—Purging

Definitions

  • the present invention relates to a rinsing and / or blocking ⁇ device for supplying rinsing and / or sealing air to at least one burner of a gas turbine plant. Moreover, the invention relates to a gas turbine plant and a method for purging and / or blocking at least one burner of a gas turbine plant.
  • each burner stage can be individually supplied with fuel. Different burner stages can be realized by different fuel nozzles in a burner, or by the fact that each burner stage operates ⁇ least associated with its own burner. Depending on the load of the gas turbine plant, different burner stages are in operation. For example, at partial load or when starting or Abfah ⁇ ren a gas turbine plant typically not all burner stages are in operation. Located not in operation Bren be ⁇ nerworkn usually locked to prevent the entry of hot ⁇ SSSR combustion gases from the combustion chamber to the burner stage. If the burner sections were previously in operation, they are also flushed to remove residual fuel from the previous operation in the fuel supply system and the burners.
  • the object of the present invention is to provide an advantageous flushing and / or locking device for supplying a rinsing and / or barrier fluid to at least a burner of a gas turbine installation are available. Another object of the present invention is to provide an advantageous gas turbine plant. Yet another object of the present invention is to provide an advantageous method for purging and / or shutting off at least one burner of a gas turbine plant.
  • the first object is achieved by a flushing and / or Sperrvor ⁇ direction according to claim 1, the second object by ei ⁇ ne gas turbine plant according to claim 9.
  • the third object is according to claim 10 by a method for supplying rinsing and / or sealing air to at least one burner aachess ⁇ least a burner and a compressor comprising gas turbine plant solved.
  • the dependent claims contain advantageous embodiments of the invention ⁇ .
  • a rinsing and / or blocking device for taking compressor air from a compressor is provided to a gas turbine plant and for supplying the extracted compressor air as rinsing and / or blocking air to at least one burner of the gas turbine plant.
  • the rinsing and / or locking device includes a is arranged a burner, egg ⁇ nen in the fluid line between the compressor and the at least one burner extending fluid conduit for supplying compressor discharge air as a rinsing and / or sealing air to the at least and of the flushing and / or blocking air flowed through cooler and at least ei ⁇ NEN arranged in the fluid line and flowed through by the rinsing and / or sealing air pressure booster, also called booster.
  • the present invention makes it possible, in all operating states of a gas turbine plant, to use compressor air as flushing and / or blocking air for blocking burners of the gas turbine plant. A possible associated with the pressure increase heating of the compressor air can be compensated with the help of the cooler.
  • Pressure booster therefore makes it possible, in all operating conditions, to supply the burner with flushing and / or blocking air
  • Compressor air to a suitable temperature and a suitable Neten pressure to bring Balancing a temperature increase with the aid of the cooler thereby offers the possibility of keeping the compressor air at the temperature level which it has when tapping off the compressor. At this temperature level, thermal shocks can be avoided during the transition from normal burner operation to purge and / or reverse operation of a burner.
  • the cooler is located in the fluid line between the compressor and the at least one burner.
  • the booster is then located between the radiator and the at least one burner.
  • at least one second pressure booster is arranged in the fluid line.
  • the first Druckhö ⁇ forth can be arranged in particular in a first flow path of the Fluidlei ⁇ tion and the second booster in a parallel to the first flow path second flow path of the
  • a first shut-off valve may be present, which is located in the fluid line between the radiator and the at least one pressure booster. With the help of this shut-off valve, the compressor air can be separated from the pressure booster and thus any leaks can be prevented.
  • a branch fluid line is present which does not lead to the at least one burner where the branch fluid line branches off from a branch point of the fluid line, which is located in the fluid line between the at least one booster and the at least one burner.
  • a second shut-off valve may also be present in this branch fluid line.
  • frequency-controlled pressure intensifiers can be used as pressure intensifiers in the flushing and / or blocking device according to the invention.
  • a Gasturbi ⁇ nena laminated with rinsing invention and / or blocking device is provided. This can be in the gas turbine plant in all operating states compressor air as a rinsing and / or sealing air use, as ⁇ be written with reference to the inventive flushing and / or locking device has been.
  • the compressor compressor air is taken out and supplied as a rinsing and / or sealing air to the at least a burner of the gas turbine plant.
  • the compressor air is cooled after removal from the compressor and before the supply to the at least one burner and subjected to an increase in pressure.
  • Compressor air these find in any operating condition of the gas turbine plant as flushing and / or sealing air use.
  • the compressor air is first cooled and then subjected to an increase in pressure. In this way, it is avoided that the cooler is flowed through by the pressurized air under increased pressure, so that the cooler need not be designed for the increased pressures.
  • FIG. 2 shows a gas turbine plant with a first exemplary embodiment of an inventive flushing and / or locking device ⁇ .
  • FIG. 3 shows a gas turbine plant with a second exemplary embodiment for a flushing and / or blocking device according to the invention.
  • the fundamental structure of a gas turbine plant will be explained below with reference to FIG.
  • the figure shows the gas turbine plant in a highly schematic manner and omits many details that are of no significance for the understanding of the present invention for the sake of clarity.
  • the gas turbine plant shown in FIG. 1 comprises a compressor 1 with a compressor inlet 2 through which ambient air can enter the compressor 1, a combustion chamber section 3 and a turbine 5 with a turbine outlet 6.
  • the plant forms a flow path from the compressor inlet 2 to the turbine outlet 6 a burner plenum 4 is fluidically connected to a compressor outlet 7 and via burners 9 and combustion chambers 8 to a turbine inlet.
  • the gas turbine plant ver ⁇ composed air is supplied through the burner plenum to the burners 4 from the compressor 9. 1
  • the supplied air by means of likewise supplied fuel, which may be a liquid or a gaseous fuel, mixed and ignited and burned the mixture, whereby hot and under pressure ste ⁇ rising exhaust gases are formed, which then as a working fluid downstream of the flow Turbine 5 serve.
  • fuel which may be a liquid or a gaseous fuel
  • hot and under pressure ste ⁇ rising exhaust gases are formed, which then as a working fluid downstream of the flow Turbine 5 serve.
  • At the Flowing through the turbine 5 to the turbine outlet 6 towards relaxes the working fluid and cools, with impulse on Tur ⁇ turbine blades 10, which are arranged on a shaft 12, is transmitted.
  • This pulse rotates the shaft so that, for example, a generator or a working machine (not shown) can be driven by means of the rotating shaft 12.
  • stationary guide vanes 11 are provided, which serve to direct the mass flow of Häme ⁇ dium.
  • Compressor inlet 2 sucked air forced by a tapered flow path and thereby compressed. Also in the compressor 1 there are vanes 15 which serve to direct the flow of air that enters the compressor to optimize the compressor process.
  • the individual burner stages can be individually supplied with fuel.
  • the burner stages can be reali ⁇ Siert or by a number of individually be supplied with combustion fuel burners here by different, individual to be supplied with fuel fuel nozzles within a burner. In the present embodiment they are realized by individually with fuel to versor ⁇ constricting burner.
  • burner stages can be switched off, in particular if the gas turbine is operated under partial load or the gas turbine is started or stopped.
  • the burner stages which are not fueled in such load conditions, are then purged to purge fuel remaining in the respective burners and associated fuel lines from the burners and lines.
  • the burners are blocked by means of a blocking fluid emerging from the burner stages against the entry of hot combustion exhaust gases from the combustion chambers into the burners.
  • the flushing and / or blocking device shown in FIG. 2 comprises a fluid line 17 which extends from the compressor 1 to the burners 9-1 to 9-x of the gas turbine plant.
  • a cooler 19 and a pressure booster 21, also called booster arranged, wherein in the present embodiment, the pressure booster 21 between the radiator 19 and the burners 9-1 to 9-x.
  • a frequency-controlled pressure intensifier is used as the pressure intensifier 21.
  • the fluid line 17 branches between the pressure booster 21 and the burners 9-1 to 9-x in branch lines 17-1 to 17-x leading to the individual burners, with a separate branch line 17-1 to 17-x for each burner.
  • x is provided with a check valve 23-1 to 23-x disposed therein. With the shut-off valves 23-1 to 23-x, individual burners 9-1 to 9-x can be individually connected to the flushing and / or blocking air or separated individually from the flushing and / or blocking air.
  • a further shut-off valve 25 is located between the cooler ⁇ ler 19 and the pressure booster 21.
  • a third shut-off valve 27 is located in a branch fluid line, which is dependent on a Ab- Branch point 31 branches off in the fluid line 17, which is located between the booster 21 and to the burners 9-1 to 9-x leading branch lines 17-1 to 17-x.
  • the shut-off valve 27 and the branch line 29 can also be used to discharge excess pressure in the fluid line sections located between the shut-off valve 25 and the shut-off valves 23-1 to 23-x.
  • Compressor air can be cooled in certain operating conditions by means of the radiator 19 and brought by means of the pressure booster 21 to an elevated pressure level. With the help of cooling can thereby be heated by increasing the
  • FIG. 1 A second exemplary embodiment of a gas turbine plant with a flushing and / or blocking device according to the invention is shown in FIG. Elements of Figure 3 which correspond to elements of Figure 1 are designated by the same reference numerals as in Figure 1 and will not be explained again to avoid repetition. The description of the second embodiment is therefore limited to the lower ⁇ difference to the first embodiment.
  • the rinsing and / or locking device of the second embodiment differs from the rinsing and / or Sperrvor ⁇ direction of the first embodiment is substantially DA by that a first booster 21i and a second booster 21 2 are present, wherein the second printer ⁇ higher 2I 2 in a fluid line to the fluid line 17 parallel line 33 is located.
  • This parallel fluid line section 33 branches off from the fluid line 17 between the shut-off valve 25 and the first pressure booster 21i and, in the present exemplary embodiment, reunites at the branch point 31 with the fluid line 17.
  • the invention described with reference to the embodiments allows compressed air extraction from the compressor with subsequent cooling and pressure increase compressor air to use in any operating condition of the gas turbine plant as rinsing and / or sealing air for rinsing and / or blocking individual or all burners.
  • the required pressure difference is set via the booster or boosters.
  • the cooler 19 it is not absolutely necessary for the cooler 19 to be located between the compressor 1 and the pressure booster 21 or the booster elevators 21i, 21 2 . It is also possible for the cooler 19 to follow the pressure booster 21 or the booster elevators 21i, 21 2 , so that it is located between the booster 21 or the booster elevators 21i, 21 2 and the branch point 31. However, arranging the cooler 19 upstream of the pressure booster 21 or the pressure booster 21i, 21 2 offers the advantage that that the radiator 21 need not be designed for the increased pressure. It is also possible to switch from the second guide ⁇ for more than two booster 21i to 21 2 pa rallel ⁇ , NEN order to further increase the air flow to kön-. In the embodiments, frequency controlled

Abstract

L'invention concerne un dispositif de balayage et/ou de blocage destiné à prélever de l'air comprimé d'un compresseur (1) d'une installation à turbine à gaz et à acheminer l'air comprimé prélevé en tant qu'air de balayage et/ou de blocage vers au moins un brûleur (9-1,..., 9-x) de l'installation à turbine à gaz. Le dispositif de balayage et/ou de blocage comprend : une conduite de fluide (17) qui s'étend entre le compresseur (1) et ledit brûleur (9-1,..., 9-x) et qui sert à acheminer de l'air comprimé en tant qu'air de balayage et/ou de blocage vers ledit brûleur (9-1,..., 9-x), un dispositif de refroidissement (19) disposé dans la conduite de fluide (17) et traversé par le flux d'air de balayage et/ou de blocage, et au moins un surpresseur (21) disposé dans la conduite à fluide (17) et traversé par le flux d'air de balayage et/ou de blocage.
PCT/EP2015/063962 2014-07-02 2015-06-22 Procédé et dispositif de balayage et/ou de blocage d'au moins un brûleur d'une installation à turbine à gaz WO2016000994A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014212826.9A DE102014212826A1 (de) 2014-07-02 2014-07-02 Verfahren und Vorrichtung zum Spülen und/oder Sperren wenigstens eines Brenners einer Gasturbinenanlage
DE102014212826.9 2014-07-02

Publications (1)

Publication Number Publication Date
WO2016000994A1 true WO2016000994A1 (fr) 2016-01-07

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PCT/EP2015/063962 WO2016000994A1 (fr) 2014-07-02 2015-06-22 Procédé et dispositif de balayage et/ou de blocage d'au moins un brûleur d'une installation à turbine à gaz

Country Status (2)

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DE (1) DE102014212826A1 (fr)
WO (1) WO2016000994A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3301278A1 (fr) * 2016-09-30 2018-04-04 Siemens Aktiengesellschaft Configuration de turbine à gaz avec de l'injection controllée de l'air de prélèvement, et procédé d'opération

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1124047A1 (fr) * 2000-02-09 2001-08-16 General Electric Company Systeme de by-pass avec deux orifices pour turbine à gaz utilisant deux combustibles
US20120167545A1 (en) * 2011-01-03 2012-07-05 General Electric Company Purge system, system including a purge system, and purge method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1124047A1 (fr) * 2000-02-09 2001-08-16 General Electric Company Systeme de by-pass avec deux orifices pour turbine à gaz utilisant deux combustibles
US20120167545A1 (en) * 2011-01-03 2012-07-05 General Electric Company Purge system, system including a purge system, and purge method

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