DE19502069A1 - Operating pressurised circulating fluidised bed firing system - Google Patents

Operating pressurised circulating fluidised bed firing system

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Publication number
DE19502069A1
DE19502069A1 DE1995102069 DE19502069A DE19502069A1 DE 19502069 A1 DE19502069 A1 DE 19502069A1 DE 1995102069 DE1995102069 DE 1995102069 DE 19502069 A DE19502069 A DE 19502069A DE 19502069 A1 DE19502069 A1 DE 19502069A1
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DE
Germany
Prior art keywords
hot gas
firing system
flue gas
brown coal
pressurised
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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.)
Granted
Application number
DE1995102069
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German (de)
Other versions
DE19502069C2 (en
Inventor
Detlef Dipl Ing Lemke
Hartmut Dipl Ing Hoehne
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VEAG Vereinigte Energiewerke AG
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VEAG Vereinigte Energiewerke AG
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Application filed by VEAG Vereinigte Energiewerke AG filed Critical VEAG Vereinigte Energiewerke AG
Priority to DE1995102069 priority Critical patent/DE19502069C2/en
Priority to AU16648/95A priority patent/AU1664895A/en
Priority to PCT/EP1995/000395 priority patent/WO1995024591A1/en
Publication of DE19502069A1 publication Critical patent/DE19502069A1/en
Application granted granted Critical
Publication of DE19502069C2 publication Critical patent/DE19502069C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration
    • B01D46/442—Auxiliary equipment or operation thereof controlling filtration by measuring the concentration of particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/508—Sulfur oxides by treating the gases with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81—Solid phase processes
    • B01D53/82—Solid phase processes with stationary reactants
    • 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
    • F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
    • F02C3/205—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products in a fluidised-bed combustor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
    • F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
    • F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
    • F23C10/10—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases the separation apparatus being located outside the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/16—Fluidised bed combustion apparatus specially adapted for operation at superatmospheric pressures, e.g. by the arrangement of the combustion chamber and its auxiliary systems inside a pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/18—Details; Accessories
    • F23C10/22—Fuel feeders specially adapted for fluidised bed combustion apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
    • F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
    • F23C6/045—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure
    • F23C6/047—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure with fuel supply in stages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2273/20—High temperature filtration
    • 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
    • F05D2220/00—Application
    • F05D2220/70—Application in combination with
    • F05D2220/72—Application in combination with a steam turbine
    • 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
    • F05D2220/00—Application
    • F05D2220/70—Application in combination with
    • F05D2220/74—Application in combination with a gas turbine

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

In a method of operating a pressurised circulating brown coal-operated fluidised bed firing system for a combination power station, the raw brown coal is pre-dried and combusted in the bed and the flue gas is subjected to partial desulphurisation, cyclone sepn. of solids for return to the bed and then cleaning in a hot gas filter. The improvement is that (a) the raw brown coal is mixed with a gaseous heat carrier and/or a moisture-binding or -evaporating solid material during its transport and/or in the comminution process before feeding into the firing system; and (b) a mixt. of brown coal dust and combustion air is additionally blown into the firing system and/or the flue gas passage to increase the flue gas temp., the flue gas being further desulphurised. Also claimed is equipment for carrying out the above method.

Description

Die Erfindung betrifft eine Anordnung für die Bestimmung von Alkalien in einem Heißgasstrom.The invention relates to an arrangement for the determination of alkalis in a hot gas stream.

Bei der Erzeugung von Heißgas durch Verbrennen oder Vergasen von Kohle in einer druckaufgeladenen Wirbelschichtfeuerung für den Betrieb einer Gasturbine sind die freigewordenen dampfförmigen Alkaliverbindungen für die Korrosion an den Turbinenschaufeln verantwortlich. Es ist deshalb unerläßlich, Alkalien im Heißgas zu bestimmen, um erforderliche Maßnahmen zur Vermeidung von Korrosionen einzuleiten. Die Bestimmung von Alkalien im Heißgasstrom erfolgt direkt durch einen Teilstrom in einer Meßstrecke (z. B. DD 57 220, 291 399) oder direkt durch einen Teilstrom über eine Absorptionslösung nach verschiedenen Analysenverfahren (z. B. DD 2 69 448).When generating hot gas by burning or Gasification of coal in a pressure-charged Fluid bed combustion for the operation of a gas turbine are the released vaporous alkali compounds for the Corrosion on the turbine blades is responsible. It is therefore essential to determine alkalis in hot gas in order to necessary measures to avoid corrosion initiate. The determination of alkalis in the hot gas flow takes place directly through a partial flow in one Measuring section (e.g. DD 57 220, 291 399) or directly through a partial flow through an absorption solution different analytical methods (e.g. DD 2 69 448).

Bei Heißgas-Temperaturen größer 1100°C werden die Alkaliatome thermisch angeregt, so daß ein Licht definierter Wellenlänge emittiert wird (DE 42 32 771). Diese Emissionen werden über Faseroptiken oder Fenster nach ihrer Intensität ausgewertet.At hot gas temperatures greater than 1100 ° C Alkali atoms thermally excited so that a light defined wavelength is emitted (DE 42 32 771). These emissions are reflected in fiber optics or windows evaluated their intensity.

Bei Heißgas-Temperaturen kleiner 1000°C ist eine solche optische Erfassung nicht möglich, da keine Emission der Alkaliatome aufgrund der geringen thermischen Anregungen eintritt.This is the case at hot gas temperatures below 1000 ° C optical detection not possible because no emission of the Alkali atoms due to the low thermal excitation entry.

Es ist daher bekannt, mit einem leistungsstarken Laser im UV-Bereich die dampfförmigen Alkaliverbindungen aufzuspalten und anzuregen. Durch ein Fenster wird der Laserstrahl eingespeist und am gegenüberliegenden Fenster ein Sekundärelektronenvervielfacher zur Erfassung der Laserenergie angeordnet. Im Winkel von 90° ist ein zweiter Sekundärelektronenvervielfacher zur Erfassung des emittierten Lichts angeordnet. It is therefore known to use a powerful laser in the UV range the vaporous alkali compounds split and stimulate. Through a window Laser beam fed in and on the opposite window a secondary electron multiplier for detecting the Laser energy arranged. There is a second one at an angle of 90 ° Secondary electron multiplier for detecting the emitted light arranged.  

Es wurde jedoch festgestellt, daß zwar Alkaliverbindungen Na₂O, NaCl, K₂O und KCl aufgespalten und angeregt werden, nicht jedoch die im Heißgas ebenfalls vorhandenen Alkaliverbindungen Na₂SO₄ und K₂SO₄. Dadurch sind nicht alle für die Korrosionen auslösenden Alkalien erfaßbar. Aufgrund der weiteren Inhaltsstoffe des Heißgases wird durch Absorption die Leistung des UV-Lasers stark reduziert, so daß reale Meßergebnisse nur über komplizierte Berechnungsverfahren erreichbar sind. Um die genannten Alkaliverbindungen trotzdem zu erfassen, sind erhebliche Aufwendungen für die Einkopplung einer großen Anregungsenergie durch einen UV-Laser erforderlich. Darüber hinaus ist die Regelbarkeit nur mit erheblichen weiteren Aufwendungen möglich, um eine Anpassung an spezifische Analysenaufgaben zu erreichen.However, it has been found that although alkali compounds Na₂O, NaCl, K₂O and KCl are split and excited, but not those also present in the hot gas Alkali compounds Na₂SO₄ and K₂SO₄. This doesn't mean all alkalis triggering the corrosion can be recorded. Due to the other ingredients of the hot gas by absorption the power of the UV laser strong reduced, so that real measurement results only over complicated Calculation methods are achievable. To the above Capturing alkali compounds anyway is significant Expenses for launching a large one Excitation energy required by a UV laser. About that In addition, the controllability is only with considerable further Expenses possible to adapt to specific To achieve analytical tasks.

Außerdem ist es bekannt, aus dem Heißgasstrom kleiner 1000°C einen Probengasstrom zu entnehmen, mittels einer Acetylen-Sauerstoff-Flamme, einen Plasmabrenner (DD 284 528) oder einen Gleichstrom-Lichtbogen (DD 2 00 351) die Alkaliverbindungen aufzuspalten und die Alkaliatome zur Lichtemission anzuregen. Das emittierte Licht spezieller Wellenlänge wird mit optischen Mitteln erfaßt sind ausgewertet.It is also known to be smaller from the hot gas flow 1000 ° C to take a sample gas stream, using a Acetylene-oxygen flame, a plasma torch (DD 284 528) or a direct current arc (DD 2 00 351) Split alkali compounds and the alkali atoms to To stimulate light emission. The light emitted more specifically Wavelength is detected by optical means evaluated.

Diese Methoden weisen jedoch folgende Nachteile auf:However, these methods have the following disadvantages:

  • - Es sind geeignete Probeentnahmeeinrichtungen und Probeleitungen erforderlich.- There are suitable sampling facilities and Test leads required.
  • - Es treten Ablagerungen bzw. Kondensation der zu bestimmenden Bestandteile auf.- Deposits or condensation occur determining components.

Weiterhin ist bekannt, innerhalb des Heißgasstromes einen mit einem gasförmigen Brennstoff betriebenen Brenner anzuordnen und durch die erzeugte Flamme die Alkaliverbin­ dungen zur Lichtemission anzuregen (DE 43 13 386). It is also known to have a within the hot gas stream with a gaseous fuel burner to arrange and by the flame generated the alkali compound stimulate light emission (DE 43 13 386).  

Obwohl eine Reihe von Vorteilen erreichbar sind, weist diese Lösung noch folgende Nachteile auf:Although a number of advantages are achievable, points this solution also has the following disadvantages:

  • - Eintrag zusätzlicher Brenngase- Entry of additional fuel gases
  • - Erzeugung einer offenen Flamme- Generation of an open flame
  • - Bei Laständerungen werden Flammenstörungen erzeugt, die zu Schwankungen des Meßsignals und damit zu Auswertefehlern führen.- Flame disturbances are generated when the load changes, to fluctuations in the measurement signal and thus Lead to evaluation errors.
  • - Besonderer Aufwand an Brenngas und Anlagentechnik- Special expenditure on fuel gas and plant technology
  • - Aufgrund von Laständerungen ist eine Regelbarkeit nicht gewährleistet, so daß spezifische Analysenaufgaben nicht ohne weiteres durchführbar sind.- Due to changes in load is controllable not guaranteed, so specific Analysis tasks cannot be carried out easily are.

Aus den genannten Gründen wird die Bestimmung der Alkaliverbindungen immer wieder über Probenahmesysteme realisiert und die bekannten Nachteile in Kauf genommen.For the reasons mentioned, the determination of the Alkaline compounds again and again via sampling systems realized and accepted the known disadvantages.

Der Erfindung liegt daher die Aufgabe zugrunde, die Emission der Alkaliverbindungen direkt im Heißgas kleiner 1000°C zu erreichen, ohne daß Laständerungen zu Verfälschungen führen. Außerdem soll eine Regelbarkeit entsprechend der Analysenaufgaben gewährleistet sein.The invention is therefore based on the object Emission of alkali compounds directly in the hot gas smaller To reach 1000 ° C without changes in load Falsifications. In addition, a controllability is said be guaranteed according to the analysis tasks.

Dies wird dadurch erreicht, daß erfindungsgemäß als thermische Anregestrecke eine Hochfrequenz-Induktionsspule oder eine Lichtbogen-Elektrodenstrecke in den Heißkanal eingesetzt und eine an sich bekannte optische Erfassungs-An­ ordnung, die die emittierte Lichtstrahlung auskoppelt, angeordnet ist. This is achieved in that according to the invention thermal excitation path a high-frequency induction coil or an arc electrode path in the hot runner used and a known optical detection to order that decouples the emitted light radiation, is arranged.  

Dadurch wird erreicht, daß die Alkaliverbindungen aufgespalten, die Alkaliatome direkt emittieren und diese Emissionen optisch erfaßt werden.This ensures that the alkali compounds split, emit the alkali atoms directly and this Emissions are recorded optically.

An einem Ausführungsbeispiel wird die Erfindung näher erläutert. Die Zeichnung zeigt:The invention is illustrated in more detail using an exemplary embodiment explained. The drawing shows:

Fig. 1 Die Einkopplung einer Hochfrequenz-Induktionsspu­ le in den Heißgaskanal. Fig. 1 The coupling of a high-frequency induction coil in the hot gas channel.

Fig. 2 Die Einkopplung einer Lichtbogen-Elektroden-Strecke in den Heißgaskanal. Fig. 2, the coupling of an arc-electrode path into the hot gas duct.

In den Heißgaskanal 1 vor der Gasturbine ist als thermische Anregestrecke die Hochfrequenz-Induktionsspule 2 eingesetzt und mit dem regelbaren Hochfrequenz-Generator 3 verbunden (Fig. 1). An den Heißgaskanal 1 ist über das Quarzfenster 6 als optische Erfassungs-Anordnung der Quarzlichtleiter 4 angeordnet und mit der Auswerteeinrichtung 5 verbunden.In the hot gas duct 1 in front of the gas turbine, the high-frequency induction coil 2 is used as a thermal excitation section and is connected to the controllable high-frequency generator 3 ( FIG. 1). The quartz light guide 4 is arranged on the hot gas duct 1 via the quartz window 6 as an optical detection arrangement and is connected to the evaluation device 5 .

In den Heißgaskanal 1 sind als thermische Anregestrecke ebenso die Lichtbogen-Elektroden 7; 8 eingesetzt und mit dem regelbaren Gleichstrom-Generator 9 verbunden (Fig. 2). In den Heißgaskanal 1 ist als optische Erfassungs-Anordnung die Lichtfaseroptik 10 eingebunden.In the hot gas duct 1 , the arc electrodes 7 ; 8 used and connected to the controllable DC generator 9 ( Fig. 2). The optical fiber optic 10 is integrated into the hot gas duct 1 as an optical detection arrangement.

Es ist ohne weiteres möglich, die thermische Anregestrecke 2; 7; 8 zusammen mit der optischen Erfassungs-Anordnung 4; 10 als ein Bauteil in den Heißgaskanal 1 einzusetzen. Im Heißgaskanal 1 wird das von der druckaufgeladenen Wirbelschichtfeuerung erzeugte Heißgas zur Gasturbine transportiert. It is readily possible to use the thermal starting section 2 ; 7 ; 8 together with the optical detection arrangement 4 ; 10 as a component in the hot gas duct 1 . In the hot gas duct 1 , the hot gas generated by the pressure-charged fluidized bed furnace is transported to the gas turbine.

Durch die Verbrennung von Braunkohle enthält das Heißgas u. a. folgende Inhaltsstoffe:By burning brown coal, the hot gas contains u. a. following ingredients:

Na₂SO₄; Na₂ O; NaClNa₂SO₄; Na₂ O; NaCl

K₂ SO₄; K₂O; KClK₂ SO₄; K₂O; KCl

In den Heißgasstrom 11 des Heißgaskanals 1 wird die vom Hochfrequenzgenerator 3 erzeugte Hochfrequenzenergie über die Induktionsspule 2 eingekoppelt (Fig. 1). Die dadurch erzeugte thermische Energie spaltet die o. g. Alkaliverbindungen, so daß die Alkaliatome Licht mit ihrer spezifischen Wellenlänge emittieren. Dieses Licht wird über die optische Erfassungs-Anordnung 4 erfaßt und zur Auswerteeinrichtung 5 gegeben und die Konzentration der o. g. Inhaltsstoffe festgestellt.In the hot gas stream 11 of the hot gas channel 1, the high frequency energy generated from high frequency generator 3 via the induction coil 2 is coupled (Fig. 1). The thermal energy thus generated cleaves the above-mentioned alkali compounds, so that the alkali atoms emit light with their specific wavelength. This light is detected via the optical detection arrangement 4 and sent to the evaluation device 5 and the concentration of the above-mentioned ingredients is determined.

Die Emission von Alkaliverbindungen im Heißgasstrom 11 wird ebenso mit der Lichtbogen-Elektrodenstrecke 7; 8 (Fig. 2) realisiert, über die Lichtfaseroptik 10 erfaßt und in der Auswerteeinrichtung 5 die Konzentration der o. g. Inhaltsstoffe festgestellt.The emission of alkali compounds in the hot gas stream 11 is also with the arc electrode section 7 ; 8 ( Fig. 2) realized, detected via the optical fiber optics 10 and the concentration of the above ingredients determined in the evaluation device 5 .

Durch die Erfindung werden folgende Vorteile erreicht:The following advantages are achieved by the invention:

  • 1. Alle im Heißgasstrom enthaltenen Inhaltsstoffe, die zu Korrosionen an den Gasturbinenschaufeln führen, sind direkt erfaßbar.1. All ingredients contained in the hot gas flow, which too Corrosion on the gas turbine blades are directly detectable.
  • 2. Durch die ausgezeichnete Regelbarkeit der einzukoppelnden Energie sind unterschiedliche Analysenaufgaben hinsichtlich der Inhaltsstoffe durchführbar.2. Due to the excellent controllability of the The energy to be coupled in is different Analysis tasks regarding the ingredients feasible.

BezugszeichenlisteReference list

 1 Heißgaskanal
 2 Hochfrequenz-Induktionsspule
 3 Hochfrequenz-Generator
 4 Quarzlichtleiter
 5 Auswerteeinrichtung
 6 Quarzfenster
 7 Lichtbogen-Elektrode
 8 Lichtbogen-Elektrode
 9 Gleichstrom-Generator
10 Lichtfaseroptik
11 Heißgasstrom 1 hot gas duct
2 high frequency induction coil
3 high frequency generator
4 quartz light guides
5 evaluation device
6 quartz windows
7 arc electrode
8 arc electrode
9 DC generator
10 optical fiber optics
11 hot gas flow

Claims (1)

Anordnung für die Bestimmung von Alkalien in einem Heißgasstrom bei Temperaturen über 1000°C, wobei zum Zwecke der Emission der Alkalien eine thermische Anregestrecke verwendet ist, gekennzeichnet dadurch, daß als thermische Anregestrecke eine Hochfrequenz-Induk­ tionsspule oder eine Lichtbogen-Elektrodenstrecke direkt in den Heißgaskanal eingesetzt und eine an sich bekannte optische Erfassungs-Anordnung, die die emittierte Lichtstrahlung auskoppelt, angeordnet ist.Arrangement for the determination of alkalis in a hot gas stream at temperatures above 1000 ° C, wherein a thermal excitation section is used for the purpose of emitting the alkalis, characterized in that a high-frequency induction coil or an arc electrode section is used as the thermal excitation section directly in the hot gas duct used and a known optical detection arrangement, which decouples the emitted light radiation, is arranged.
DE1995102069 1994-03-09 1995-01-16 Arrangement for the optical determination of the concentration of alkalis in a hot gas stream Expired - Fee Related DE19502069C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE1995102069 DE19502069C2 (en) 1995-01-16 1995-01-16 Arrangement for the optical determination of the concentration of alkalis in a hot gas stream
AU16648/95A AU1664895A (en) 1994-03-09 1995-02-03 Process and device for operating a pressure-loaded, lignite-fed, circulating fluidised bed furnace for composite power stations
PCT/EP1995/000395 WO1995024591A1 (en) 1994-03-09 1995-02-03 Process and device for operating a pressure-loaded, lignite-fed, circulating fluidised bed furnace for composite power stations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1995102069 DE19502069C2 (en) 1995-01-16 1995-01-16 Arrangement for the optical determination of the concentration of alkalis in a hot gas stream

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Publication Number Publication Date
DE19502069A1 true DE19502069A1 (en) 1996-07-18
DE19502069C2 DE19502069C2 (en) 1999-04-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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GB900423A (en) * 1959-04-06 1962-07-04 Atomic Energy Authority Uk Spectrographic analysis apparatus and process
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Publication number Priority date Publication date Assignee Title
DE102017219786A1 (en) 2017-11-07 2019-05-09 Thyssenkrupp Ag Process engineering arrangement and method for providing alkali-reduced synthesis gas and control device and use

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