EP1102005B1 - System for the combustion of pretreated gas - Google Patents

System for the combustion of pretreated gas Download PDF

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Publication number
EP1102005B1
EP1102005B1 EP00121557A EP00121557A EP1102005B1 EP 1102005 B1 EP1102005 B1 EP 1102005B1 EP 00121557 A EP00121557 A EP 00121557A EP 00121557 A EP00121557 A EP 00121557A EP 1102005 B1 EP1102005 B1 EP 1102005B1
Authority
EP
European Patent Office
Prior art keywords
gas
burner
combustion
fuel gas
detector
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.)
Expired - Lifetime
Application number
EP00121557A
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German (de)
French (fr)
Other versions
EP1102005A1 (en
Inventor
Emil Aschenbruck
Hans Weibel
Markus Dr. Beukenberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAN Energy Solutions SE
Original Assignee
MAN Turbomaschinen AG
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Publication date
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Publication of EP1102005A1 publication Critical patent/EP1102005A1/en
Application granted granted Critical
Publication of EP1102005B1 publication Critical patent/EP1102005B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F23K5/002—Gaseous fuel
    • F23K5/007—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/68—Treating the combustion air or gas, e.g. by filtering, or moistening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply

Definitions

  • the invention relates to an arrangement for burning an in a treatment plant that has been prepared and preheated Fuel gas in a burner in a gas turbine plant or in a boiler system with the features of the generic term of Claim.
  • Fuel gas is increasingly being used for the operation of gas turbines and Boiler systems used. Due to irregularities in the Fuel gas processing or strongly fluctuating fuel gas qualities fuel condensate can go unnoticed.
  • Fuel nozzles designed for gas operation contain the liquid components of the fuel gas will not atomize them Liquid components due to the high kinetic energy transported through the actual combustion chamber without the Attend combustion. Meet these energetic Liquid drops then on machine or system parts, see above the liquid drops are caused by the impact energy atomized. With atomization and through the available air ignitable mixtures are formed by reignition cause uncontrolled combustion processes. Since the not affected areas for combustion temperatures are designed, the degree of damage in such cases considerable, up to the total failure of the machine or system. The previous solutions to avoid these disadvantages focus on fuel gas processing with great Make the effort safer.
  • From US-A-4 369 803 is a method for mixing gases known with different calorific values and dew points.
  • a gas mixture stream supplied to a burner is one Measuring device arranged on one in one of the gas streams arranged control valve acts.
  • the Control valve By adjusting the Control valve is the according to the measuring device Composition of the gas mixture adjusted so that the Current heating value as close as possible to the desired heating value lies without condensation occurring in the gas mixture.
  • GB-A-1 390 643 describes a method for producing a Fuel gas with a lower calorific value from a gas with high Calorific value described. In this process, a partial flow of the gas with high calorific value burned and the inert gas thus obtained Combustion gas mixed with the high calorific gas. Over a Measuring device is the amount of partial flow to be burned set so that the temperature of the fuel gas above the Dew point. Both in the method according to GB-A-1 390 643 as well as in the method according to US-A-4 369 803 any condensate content in the gas was not determined.
  • the invention is based, in one generic system downstream of the burner Parts of the system from damage caused by fuel gas, for example Condensate fractions more safely and with less effort protect.
  • the detector 9 By the detector 9 arranged directly in front of the burner the final condition of the processed fuel gas is monitored. Through this monitoring and the measures to be taken afterwards very high machine and system protection is achieved. It can also add unnecessary safety surcharges when heating of the fuel gas are eliminated, so that a reduction in Secondary energies becomes possible. Malfunctions will also occur in fuel gas processing (filtering, condensate separator, Fuel gas heating) and fluctuations in fuel gas quality continuously with regard to condensate failure on the end product controlled the fuel preparation.
  • FIG. 1 An embodiment of the invention is in the drawing shown and is explained in more detail below.
  • the drawing shows the diagram of a gas turbine plant.
  • the gas turbine system consists of a gas turbine 1, which with a generator 2 for generating electrical energy and one Compressor 3 coupled to compress combustion air is.
  • the compressor 3 promotes the compressed combustion air to a combustion chamber 4, in the processed fuel gas below Pressure is burned.
  • the resulting combustion gas becomes the entry of the gas turbine 1 supplied.
  • the combustion chamber 4 is provided with a burner which has a Line 5 is connected to a processing plant 6.
  • the fuel gas is filtered by Free condensate and preheated. It is so on line 5 processed fuel gas to the burner of the combustion chamber 4 fed.
  • the line 5 In the immediate vicinity of the entry into the burner is in the line 5 has a connection 7 for a test line 8, through which a partial flow of the line 5 to the burner inflowing fuel gas is removed.
  • the test line 8 is connected to a continuously operating detector 9. In the detector 9 is the content of condensate in the fuel gas determined.
  • the detector 9 is with an alarm device 10 and with a Shutdown device 11 provided. If the detector 9 one too high content of condensate in the fuel gas is over the alarm device 10 triggers an alarm and the Switch-off device 11 the supply of fuel gas to the burner interrupted.
  • the described Arrangement can also be used in a boiler system.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Hydrogen, Water And Hydrids (AREA)
  • Incineration Of Waste (AREA)
  • Fuel Cell (AREA)

Abstract

The turbine (1) is driven by burning a gas and air mixture (4) having forced air (3) and gas (5) fed from a processing unit (6) where a test proportion of gas passes into a detector (9) which measures the water content and sounds an alarm (10) and closes a valve (11) at a preset value.

Description

Die Erfindung betrifft eine Anordnung zum Verbrennen eines in einer Aufbereitungsanlage aufbereiteten und vorgewärmten Brenngases in einem Brenner in einer Gasturbinenanlage oder in einer Kesselanlage mit den Merkmalen des Oberbegriffes des Patentanspruches.The invention relates to an arrangement for burning an in a treatment plant that has been prepared and preheated Fuel gas in a burner in a gas turbine plant or in a boiler system with the features of the generic term of Claim.

Brenngas wird vermehrt für den Betrieb von Gasturbinen- und Kesselanlagen eingesetzt. Durch Unregelmäßigkeiten in der Brenngasaufbereitung oder stark schwankende Brenngasqualitäten kann unbemerkt Brennstoffkondensat ausfallen. Da die für den Gasbetrieb ausgelegten Brennstoffdüsen die Flüssigkeitsanteile des Brenngases nicht zerstäuben, werden diese Flüssigkeitsanteile, aufgrund der hohen kinetischen Energie durch den eigentlichen Brennraum transportiert, ohne an der Verbrennung teilzunehmen. Treffen diese energiereichen Flüssigkeitstropfen dann auf Maschinen- oder Anlagenteile, so werden die Flüssigkeitstropfen durch die Aufprallenergie zerstäubt. Mit der Zerstäubung und durch die vorhandene Luft werden zündfähige Gemische gebildet, die durch Rückzündung unkontrollierte Verbrennungsvorgänge hervorrufen. Da die betroffenen Bereiche für Verbrennungstemperaturen nicht ausgelegt sind, ist der Schädigungsgrad in solchen Fällen erheblich, bis hin zum Totalausfall der Maschine oder Anlage. Die bisherigen Lösungen zur Vermeidung dieser Nachteile konzentrieren sich darauf, die Brenngasaufbereitung mit großem Aufwand sicherer zu gestalten.Fuel gas is increasingly being used for the operation of gas turbines and Boiler systems used. Due to irregularities in the Fuel gas processing or strongly fluctuating fuel gas qualities fuel condensate can go unnoticed. As for the Fuel nozzles designed for gas operation contain the liquid components of the fuel gas will not atomize them Liquid components due to the high kinetic energy transported through the actual combustion chamber without the Attend combustion. Meet these energetic Liquid drops then on machine or system parts, see above the liquid drops are caused by the impact energy atomized. With atomization and through the available air ignitable mixtures are formed by reignition cause uncontrolled combustion processes. Since the not affected areas for combustion temperatures are designed, the degree of damage in such cases considerable, up to the total failure of the machine or system. The previous solutions to avoid these disadvantages focus on fuel gas processing with great Make the effort safer.

Aus der US-A-4 369 803 ist ein Verfahren zum Mischen von Gasen mit unterschiedlichen Heizwerten und Taupunkten bekannt. In dem einem Brenner zugeführten Strom des Gasgemisches ist eine Meßeinrichtung angeordnet, die auf ein in einem der Gasströme angeordnetes Regelventil einwirkt. Durch ein Verstellen des Regelventils wird nach Maßgabe der Meßeinrichtung die Zusammensetzung des Gasgemisches so eingestellt, daß der aktuelle Heizwert möglichst nahe bei dem gewünschten Heizwert liegt, ohne daß eine Kondensation in dem Gasgemisch auftritt.From US-A-4 369 803 is a method for mixing gases known with different calorific values and dew points. By doing a gas mixture stream supplied to a burner is one Measuring device arranged on one in one of the gas streams arranged control valve acts. By adjusting the Control valve is the according to the measuring device Composition of the gas mixture adjusted so that the Current heating value as close as possible to the desired heating value lies without condensation occurring in the gas mixture.

In der GB-A-1 390 643 ist ein Verfahren zur Herstellung eines Brenngases mit abgesenktem Heizwert aus einem Gas mit hohem Heizwert beschrieben. Bei diesem Verfahren wird ein Teilstrom des heizwertreichen Gases verbrannt und das so gewonnene, inerte Verbrennungsgas dem heizwertreichen Gas beigemischt. Über eine Meßeinrichtung wird die Menge des zu verbrennenden Teilstromes so eingestellt, daß die Temperatur des Brenngases oberhalb des Taupunktes liegt. Sowohl bei dem Verfahren gemäß der GB-A-1 390 643 als auch bei dem Verfahren gemäß der US-A-4 369 803 wird ein etwa vorhandener Gehalt an Kondensat im Gas nicht ermittelt.GB-A-1 390 643 describes a method for producing a Fuel gas with a lower calorific value from a gas with high Calorific value described. In this process, a partial flow of the gas with high calorific value burned and the inert gas thus obtained Combustion gas mixed with the high calorific gas. Over a Measuring device is the amount of partial flow to be burned set so that the temperature of the fuel gas above the Dew point. Both in the method according to GB-A-1 390 643 as well as in the method according to US-A-4 369 803 any condensate content in the gas was not determined.

Der Erfindung liegt die Aufgabe zugrunde, in einer gattungsgemäßen Anlage die dem Brenner nachgeschalteten Anlagenteile vor Schäden durch etwa im Brenngas vorhandene Kondensatanteile sicherer und mit geringerem Aufwand zu schützen. The invention is based, in one generic system downstream of the burner Parts of the system from damage caused by fuel gas, for example Condensate fractions more safely and with less effort protect.

Diese Aufgabe wird bei einer gattungsgemäßen Anordnung durch die kennzeichnenden Merkmale des Patentanspruches gelöst.This task is performed in a generic arrangement by characterizing features of the claim solved.

Durch den unmittelbar vor dem Brenner angeordneten Detektor 9 wird der Endzustand des aufbereiteten Brenngases überwacht. Durch diese Überwachung und die danach zu treffenden Maßnahmen wird ein sehr hoher Maschinen- und Anlagenschutz erreicht. Außerdem können unnötige Sicherheitszuschläge bei der Erwärmung des Brenngases entfallen, so daß eine Reduzierung der Sekundärenergien möglich wird. Ebenso werden Fehlfunktionen in der Brenngasaufbereitung (Filterung, Kondensatabscheider, Brenngaserwärmung) sowie Schwankungen in der Brenngasqualität kontinuierlich hinsichtlich des Kondensatausfalles am Endprodukt der Brennstoffaufbereitung kontrolliert.By the detector 9 arranged directly in front of the burner the final condition of the processed fuel gas is monitored. Through this monitoring and the measures to be taken afterwards very high machine and system protection is achieved. It can also add unnecessary safety surcharges when heating of the fuel gas are eliminated, so that a reduction in Secondary energies becomes possible. Malfunctions will also occur in fuel gas processing (filtering, condensate separator, Fuel gas heating) and fluctuations in fuel gas quality continuously with regard to condensate failure on the end product controlled the fuel preparation.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert. Die Zeichnung zeigt das Schema einer Gasturbinenanlage dar.An embodiment of the invention is in the drawing shown and is explained in more detail below. The drawing shows the diagram of a gas turbine plant.

Die Gasturbinenanlage besteht aus einer Gasturbine 1, die mit einem Generator 2 zur Erzeugung elektrischer Energie und einem Kompressor 3 zur Komprimierung von Verbrennungsluft gekoppelt ist. Der Kompressor 3 fördert die komprimierte Verbrennungsluft zu einer Brennkammer 4, in der aufbereitetes Brenngas unter Druck verbrannt wird. Das dabei entstehende Verbrennungsgas wird den Eintritt der Gasturbine 1 zugeführt.The gas turbine system consists of a gas turbine 1, which with a generator 2 for generating electrical energy and one Compressor 3 coupled to compress combustion air is. The compressor 3 promotes the compressed combustion air to a combustion chamber 4, in the processed fuel gas below Pressure is burned. The resulting combustion gas becomes the entry of the gas turbine 1 supplied.

Die Brennkammer 4 ist mit einem Brenner versehen, der über eine Leitung 5 mit einer Aufbereitungsanlage 6 verbunden ist. In dieser Aufbereitungsanlage 6 wird das Brenngas gefiltert, von Kondensat befreit und vorgewärmt. Über die Leitung 5 wird das so aufbereitete Brenngas zu dem Brenner der Brennkammer 4 zugeführt. The combustion chamber 4 is provided with a burner which has a Line 5 is connected to a processing plant 6. In this processing plant 6, the fuel gas is filtered by Free condensate and preheated. It is so on line 5 processed fuel gas to the burner of the combustion chamber 4 fed.

In der unmittelbaren Nähe des Eintrittes in den Brenner ist in der Leitung 5 ein Anschluß 7 für eine Prüfleitung 8 angeordnet, über die ein Teilstrom des durch die Leitung 5 dem Brenner zuströmenden Brenngases entnommen wird. Die Prüfleitung 8 ist mit einem kontinuierlich arbeitenden Detektor 9 verbunden. In dem Detektor 9 wird der Gehalt des Brenngases an Kondensat ermittelt.In the immediate vicinity of the entry into the burner is in the line 5 has a connection 7 for a test line 8, through which a partial flow of the line 5 to the burner inflowing fuel gas is removed. The test line 8 is connected to a continuously operating detector 9. In the detector 9 is the content of condensate in the fuel gas determined.

Der Detektor 9 ist mit einer Alarmeinrichtung 10 und mit einer Abschalteinrichtung 11 versehen. Wenn der Detektor 9 einen zu hohen Gehalt an Kondensat in dem Brenngas feststellt, wird über die Alarmeinrichtung 10 ein Alarm ausgelöst und über die Abschalteinrichtung 11 die Zufuhr von Brenngas zu dem Brenner unterbrochen.The detector 9 is with an alarm device 10 and with a Shutdown device 11 provided. If the detector 9 one too high content of condensate in the fuel gas is over the alarm device 10 triggers an alarm and the Switch-off device 11 the supply of fuel gas to the burner interrupted.

Anstelle in einer Gasturbinenanlage kann die beschriebene Anordnung auch in einer Kesselanlage eingesetzt werden.Instead of in a gas turbine plant, the described Arrangement can also be used in a boiler system.

Claims (1)

  1. Arrangement for combustion of a burn gas, which is prepared and preheated in a preparation installation (6), in a burner in a gas turbine plant or in a boiler plant, wherein the burner is connected with the preparation installation (6) by way of a duct (5) and wherein a measuring device for determining a gas component is provided, characterised in that the measuring device consists of a continuously operating detector (9) for determining the content of condensate in the prepared bum gas and that the detector (9) is arranged in the duct (5) directly in front of the burner and connected with an alarm device (10) and a device (11) for switching off.
EP00121557A 1999-11-19 2000-09-30 System for the combustion of pretreated gas Expired - Lifetime EP1102005B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19955680A DE19955680A1 (en) 1999-11-19 1999-11-19 Arrangement for burning a processed fuel gas
DE19955680 1999-11-19

Publications (2)

Publication Number Publication Date
EP1102005A1 EP1102005A1 (en) 2001-05-23
EP1102005B1 true EP1102005B1 (en) 2004-06-09

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ID=7929611

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EP00121557A Expired - Lifetime EP1102005B1 (en) 1999-11-19 2000-09-30 System for the combustion of pretreated gas

Country Status (7)

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US (1) US6792761B1 (en)
EP (1) EP1102005B1 (en)
JP (1) JP2001317736A (en)
AT (1) ATE268885T1 (en)
DE (2) DE19955680A1 (en)
NO (1) NO20005816L (en)
PL (1) PL343919A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001221428A (en) * 2000-02-03 2001-08-17 Keiyo Gas Kk Monitor for water content in gas
DE10308384A1 (en) * 2003-02-27 2004-09-09 Alstom Technology Ltd Operating procedure for a gas turbine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2121402A1 (en) * 1971-04-30 1972-11-02 Shell Internationale Research Maatschappij N.V., Den Haag (Niederlande) Process for the production of fuel gas from liquefied hydrocarbon gases
FR2296811A1 (en) * 1974-12-31 1976-07-30 Exxon Vaporiser-dilution system for liquefied petroleum gases - to prevent condensation in distribution pipelines
US4140473A (en) * 1977-01-13 1979-02-20 Allied Chemical Corporation Apparatus and method to control process to replace natural gas with fuel oil in a natural gas burner
US4369803A (en) * 1981-01-28 1983-01-25 Phillips Petroleum Company Control of fuel gas blending
US5114115A (en) * 1990-08-27 1992-05-19 United Technologies Corporation Dual independent input hydraulic shutoff
GB2300451B (en) * 1995-04-29 1999-10-13 Lucas Ind Plc Fuel control system for a gas turbine engine
DE19548601C2 (en) * 1995-12-23 2001-08-23 Viessmann Werke Kg Process and gas blower burner unit to prevent condensate drops from forming
AU730820B2 (en) * 1995-12-26 2001-03-15 Kabushiki Kaisha Toshiba Fuel supply apparatus for gas turbine and control unit for the same
US6401459B1 (en) * 2000-11-13 2002-06-11 Rosewood Equipment Company Fuel gas conditioning system with dew point monitoring

Also Published As

Publication number Publication date
PL343919A1 (en) 2001-05-21
DE19955680A1 (en) 2001-05-23
JP2001317736A (en) 2001-11-16
EP1102005A1 (en) 2001-05-23
NO20005816L (en) 2001-05-21
NO20005816D0 (en) 2000-11-17
US6792761B1 (en) 2004-09-21
DE50006739D1 (en) 2004-07-15
ATE268885T1 (en) 2004-06-15

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