DE3518512A1 - METHOD FOR GENERATING ELECTRICITY AND HEAT BY MEANS OF A PRINTED FLUID BED BURNER - Google Patents
METHOD FOR GENERATING ELECTRICITY AND HEAT BY MEANS OF A PRINTED FLUID BED BURNERInfo
- Publication number
- DE3518512A1 DE3518512A1 DE19853518512 DE3518512A DE3518512A1 DE 3518512 A1 DE3518512 A1 DE 3518512A1 DE 19853518512 DE19853518512 DE 19853518512 DE 3518512 A DE3518512 A DE 3518512A DE 3518512 A1 DE3518512 A1 DE 3518512A1
- Authority
- DE
- Germany
- Prior art keywords
- fluidized bed
- heat
- water
- flue gas
- heat exchanger
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000005611 electricity Effects 0.000 title claims description 5
- 239000012530 fluid Substances 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000003546 flue gas Substances 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 4
- 239000003344 environmental pollutant Substances 0.000 claims description 2
- 231100000719 pollutant Toxicity 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims 1
- 238000007654 immersion Methods 0.000 description 5
- 238000010304 firing Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- 229910052815 sulfur oxide Inorganic materials 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/061—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with combustion in a fluidised bed
- F01K23/062—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with combustion in a fluidised bed the combustion bed being pressurised
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K21/00—Steam engine plants not otherwise provided for
- F01K21/04—Steam engine plants not otherwise provided for using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas
- F01K21/047—Steam engine plants not otherwise provided for using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas having at least one combustion gas turbine
-
- 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
- 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
- F02C3/30—Adding water, steam or other fluids for influencing combustion, e.g. to obtain cleaner exhaust gases
-
- 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
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
-
- 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
- Y02E20/14—Combined heat and power generation [CHP]
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
Description
Wirbelbettfeuerung mit direkter WasserkühlungFluidized bed combustion with direct water cooling
Die Erfindung betrifft ein Verfahren zur Strom- und Wärmeerzeugung mittels einer druckbetriebenen Wirbelbettfeuerung, bei dem die in der Wirbelbettfeuerung anfallenden heißen Rauchgase entstaubt, dann arbeitsleistend entspannt und anschließend in einem Wärmetauscher gekühlt werden.The invention relates to a method for generating electricity and heat by means of a pressure-operated fluidized bed combustion, in which the in the fluidized bed combustion accumulating hot flue gases are dedusted, then relaxed while performing work and then be cooled in a heat exchanger.
Wirbelbettfeuerungen zählen in zahlreichen Aus.führungsformen für verschiedene Anwendungsbereiche seit langem zum Stand der Technik. Wesentliche Vorteile sind darin zu sehen, daß im Gegensatz zu anderen Feuerungstypen auch geringwertige Brennstoffe mit hohem Ballastgehalt, wie z.B. Ballastkohle oder Aufbereitungsabgänge, die als Nebenprodukt bei der Steinkohleaufbereitung anfallen und bisher nicht verwertet, sondern deponiert wurden, verbrannt werden können. Darüber hinaus ist dieser Feuerungstyp vergleichsweise umweltfreundlich, da bei den niedrigen Verbrennungstemperaturen nahezu keine thermischen Stickoxide entstehen und die Schwefeloxide durch Zugabe geeigneter Absorptionsmittel, wie z.B. Kalkstein, bereits in der Brennkammer gebunden werden können. Diese Vorteile lassen die Wirbelbettfeuerung auch für die Kraftwerkstechnik, z.B. für die gleichzeitige Erzeugung von Strom und nutzbarer Wärme in Heizkraftwerken, als geeignet erscheinen.Fluidized bed firing systems are available in numerous designs for various areas of application have long been state of the art. Major advantages can be seen in the fact that, in contrast to other types of firing, also low-value ones Fuels with a high ballast content, such as ballast coal or treatment waste, which arise as a by-product of hard coal processing and have not yet been used, but were dumped, burned can be. Furthermore this type of furnace is comparatively environmentally friendly because of the low combustion temperatures almost no thermal nitrogen oxides are formed and the sulfur oxides are added suitable absorbent, e.g. limestone, already bound in the combustion chamber can be. These advantages mean that fluidized bed combustion can also be used in power plant technology, e.g. for the simultaneous generation of electricity and usable heat in thermal power stations, appear suitable.
Wirbelbettfeuerungen können dabei unter atmosphärischen oder überdruckbedingungen betrieben werden, wobei zur Einhaltung der Bettemperatur die Auskopplung der erzeugten Wärme meist mittels sogenannter Tauchheizflächen, die in dem Wirbelbett angeordnet sind und von einem komprimierten Arbeitsmedium, wie z.B. Luft für eine Gasturbine oder auch Wasser bzw. Wasserdampf für eine Dampfturbine, durchströmt werden. Bei unter Druck betriebenen Wirbelbettfeuerungen kann darüber hinaus noch die Arbeitsfähigkeit der Rauchgase zur Energieerzeugung genutzt werden.Fluidized bed firing can operate under atmospheric or overpressure conditions be operated, with the coupling of the generated to maintain the bed temperature Heat mostly by means of so-called immersion heating surfaces, which are arranged in the fluidized bed and from a compressed working medium, such as air for a gas turbine or water or water vapor for a steam turbine can be flowed through. at Fluidized bed combustion systems operated under pressure can also reduce the ability to work the flue gases can be used to generate energy.
Im Zusammenhang mit der Anwendung von Wirbelbettfeuerungen im Bereich der Kraftwerkstechnik ergeben sich Nachteile im Hinblick auf deren Regelbarkeit. Durch die vorgesehene Art der Wärmeauskopplung über Tauchheizflächen, die unmittelbar in dem Wirbelbett eingelagert und in ihrer Geometrie und somit auch in ihrem Wärmeaufnahmevermögen vorgegeben sind, ist sowohl das Leistungsniveau einer solchen Feuerung als auch deren Lastregelgeschwindigkeit von vorneherein festgelegt. Eine weitere Erhöhung der Leistungsdichte, z.B. durch eine Vergrößerung der Brennstoffzufuhr, würde zu überhitzungen in dem Wirbelbett führen, da die erzeugte Wärme über die Tauchheizfl-achen nicht genügend schnell abgeführt werden könnte.In connection with the application of fluidized bed combustion in the area the power plant technology has disadvantages with regard to their Controllability. Due to the intended type of heat extraction via immersion heating surfaces, which are stored directly in the fluidized bed and in their geometry and thus also are given in their heat absorption capacity, is both the performance level a such firing as well as its load control speed are determined from the outset. A further increase in the power density, e.g. by increasing the fuel supply, would lead to overheating in the fluidized bed, as the heat generated over the Immersion heating surfaces could not be removed quickly enough.
Der Erfindung liegt demnach die Aufgabe zugrunde, das eingangs genannte Verfahren zur Strom- und Wärmeerzeugung mittels einer druckbetriebenen Wirbelbettfeuerung derart weiterzuentwickeln, daß die Feuerung in einem möglichst weiten Leistungsbereich und mit hoher Leistungsdichte gefahren werden kann.The invention is therefore based on the object mentioned above Process for generating electricity and heat by means of a pressure-operated fluidized bed furnace to be further developed in such a way that the furnace has as wide a power range as possible and can be driven with high power density.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß in die Wirbelbettfeuerung Wasser eingeführt und das entstehende Gemisch aus Rauchgas und Wasserdampf als Arbeits-bzw. Wärmeträgermedium den der Wirbelbettfeuerung nachgeschalteten Aggregaten zugeführt wird.This object is achieved according to the invention in that in the fluidized bed furnace Introduced water and the resulting mixture of flue gas and steam as working or. Heat transfer medium fed to the units downstream of the fluidized bed furnace will.
Durch das gemäß der Erfindung vorgesehene Einleiten von Wasser in das Wirbelbett, das einer direkten Kühlung des Wirbelbettes gleichkommt, kann die Leistung der Feuerung erhöht werden, ohne daß die eingangs geschilderten Nachteile, wie z.B. die Beschädigung von Tauchheizflächen durch überhitzungen, auftreten. Die bei einer Leistungssteigerung anfallende zusätzliche Wärme wird zur Wasserdampferzeugung genutzt. Dadurch erhöht sich die Menge des für die arbeitsleistende EntSpannung in der Turbine zur Verfügung stehenden Arbeitsmittels entsprechend. Bedingt durch die hohe Verdampfungswärme des Wassers können dabei verhältnismäßig große Wärmemengen zusätzlich aus dem Wirbelbett ausgekoppelt und in der Turbine sowie im nachgeschalteten Wärmetauscher genutzt werden.Through the introduction of water in accordance with the invention the fluidized bed, which is equivalent to direct cooling of the fluidized bed, can The performance of the furnace can be increased without the disadvantages outlined above, such as damage to immersion heating surfaces due to overheating. the Any additional heat generated by an increase in output is used to generate steam utilized. This increases the amount of relaxation needed for work working fluid available in the turbine accordingly. Due the high heat of evaporation of the water can generate relatively large amounts of heat additionally decoupled from the fluidized bed and in the turbine as well as in the downstream Heat exchangers are used.
Die Entspannung des Arbeitsmittels in der Turbine erfolgt zweckmäßigerweise auf ein Druck- bzw. Temperaturniveau, das noch ausreichend hoch ist, um die im Wärmetauscher anfallende Wärme, insbesondere die zurückgewonnene Verdampfungswärme des Wassers, nutzbringend, z.B. für Fernwärmezwecke, verwerten zu können.The expansion of the working medium in the turbine is expediently carried out to a pressure or temperature level that is still high enough to achieve that in the heat exchanger accumulating heat, in particular the recovered heat of vaporization of the water, profitably, e.g. for district heating purposes.
Das im Wärmetauscher infolge der Abkühlung auskondensierte Wasser wirei nach einem weiteren Merkmal der Erfindung erneut der Druckwirbelbettfeuerung zugeführt. Dabei ist eine gesonderte Aufbereitung in der Regel nicht erforderlich, da die im Kreislaufwasser mitgeführten Feststoffteilchen, wie z.B. Staub oder auch CaS04, sich zum grössten Teil an das Bettmaterial anlagern und mit der Asche aus dem Wirbelbett ausgetragen werden.The water condensed in the heat exchanger as a result of cooling wirei according to a further feature of the invention again the pressure fluidized bed combustion fed. As a rule, separate processing is not necessary, there the solid particles carried along in the circuit water, such as dust or CaS04, for the most part attach to the bed material and are removed with the ashes be discharged from the fluidized bed.
Unter Umständen kann es sich auch als zweckmäßig erweisen, das die Wirbelbettfeuerung verlassende Gemisch aus Rauchgas und Wasserdampf vor oder auch nach seiner Entstaubung bzw. Teilentstaubung vorzukühlen und erst dann in die Gasturbine einzuspeisen. In diesem Falle erfolgt die Entspannung in der Turbine selbst bei niedrigerer Temperatur mit der Folge, daß die Materialbeanspruchung der Turbine entsprechend reduziert wird und somit Reststaubmengen im Arbeitsmittel sich als weniger störend erweisen, Die im Zuge der Vorkühlung auf relativ hohem Temperaturniveau anfallende Wärme kann dabei zur Dampferzeugung genutzt werden.Under certain circumstances it can also prove to be useful that the Fluidized bed combustion leaving mixture of flue gas and water vapor before or also to pre-cool after its dedusting or partial dedusting and only then into the gas turbine to feed. In this case, the relaxation in the turbine itself takes place at lower temperature with the result that the material stress on the turbine is reduced accordingly and thus residual amounts of dust in the work equipment turn out to be turn out to be less disturbing, The in the course of the pre-cooling to a relatively high temperature level the resulting heat can be used to generate steam.
Obwohl die bevorzugte Anwendung der Erfindung im Zusammenhang mit einer druckbetriebenen Wirbelbettfeuerung zu sehen ist, ist jedoch ohne weiteres eine Anwendung auch bei atmosphärischen Wirbelbettfeuerungen möglich.Although the preferred application of the invention in connection with a pressure-operated fluidized bed furnace can be seen, however, is straightforward it can also be used with atmospheric fluidized bed combustion.
Weitere Erläuterungen sind dem in der Figur schematisch dargestellten Ausführungsbeispiel zu entnehmen.Further explanations are shown schematically in the figure Refer to the exemplary embodiment.
Die Figur zeigt einen bei einem Druck von z.B. 10 bar betriebenen Druckwirbelbettkessel 1 mit einem integrierten Wirbelbett 2. Als Trägergas dient die Verbrennungsluft, die in einem Kompressor 3 verdichtet und über Zweigleitungen 4 in an sich bekannter Weise in das Wirbelbett eingeleitet wird. The figure shows one operated at a pressure of e.g. 10 bar Pressure fluidized bed boiler 1 with an integrated fluidized bed 2. Serves as a carrier gas the combustion air, which is compressed in a compressor 3 and via branch lines 4 is introduced into the fluidized bed in a manner known per se.
Die Frischkohle wird über eine Leitung 5 zusammen mit Kalk, der als Absorptionsmittel für die Schwefeloxide dient und über eine Leitung 6 zugeführt wird, in das Wirbelbett 2 eingespeist. Heiße Asche wird über eine Leitung 7 aus dem Wirbelbett 2 abgezogen. Ein Teil der im Wirbelbett 2 bei einer Temperatur von etwa 8500 C anfallenden Wärme wird mittels Tauchheizflächen 8, die innerhalb des Wirbelbettes angeordnet und von einem Wärmeträgermedium durchströmt werden, ausgekoppelt. Als Wärmeträgermedium kann dabei komprimierte Luft als Arbeitsmittel für eine Gasturbine oder auch hochgespannter Wasserdampf als Arbeitsmittel für eine Dampfturbine verwendet werden.The fresh coal is via a line 5 together with lime, which as Absorbent for the sulfur oxides is used and supplied via a line 6 is fed into the fluidized bed 2. Hot ash is discharged via a line 7 the fluidized bed 2 withdrawn. Part of the in the fluidized bed 2 at a temperature of About 8500 C accumulating heat is by means of immersion heating surfaces 8, which are within the Fluidized bed arranged and flowed through by a heat transfer medium, decoupled. Compressed air can be used as the heat transfer medium as a working medium for a gas turbine or high-pressure steam is used as a working medium for a steam turbine will.
GemäR der Erfindung wird über eine Leitung 9 Wasser zunächst in die Leitung 5 und dann zusammen mit dem Brennstoff in das Wirbelbett 2 eingespeist. Durch diese Maßflafime kann die Leistung der Wirbelschichtfeuerungsanlage erheblich hochgefahren werden, da die nunmehr produzierte zusätzliche Wärmemenge, ohne daß sich die Temperatur im Wirbelbett selbst erhöht, über den Wasserdampf abgezogen werden kann. Ggf. kann das in der Leitung 9 strömende Wasser auch über eine Sprühdüsenanordnung 17 in das Wirbelbett 2 eingesprüht werden.According to the invention is first of all into the water via a line 9 Line 5 and then fed into the fluidized bed 2 together with the fuel. With this dimension, the performance of the fluidized bed furnace can be increased considerably be started up, since the now produced additional amount of heat, without the temperature in the fluidized bed itself increasing, withdrawn via the steam can be. If necessary, the water flowing in the line 9 can also use a spray nozzle arrangement 17 are sprayed into the fluidized bed 2.
Das entstehende Gemisch aus Rauchgas und Wasserdampf wird zunächst über eine Leitung 10 einem Dampferzeuger 11 zugeleitet, dort auf z.B. 4500 C abgekühlt, in einem Zyklon 12 einer Grobstaubabscheidung unterzogen und anschließend in einer Turbine 13 auf einen Druck von z.B.The resulting mixture of flue gas and water vapor is initially fed via a line 10 to a steam generator 11, cooled there to e.g. 4500 C, subjected to a coarse dust separation in a cyclone 12 and then in a Turbine 13 to a pressure of e.g.
1,1 bar entspannt.1.1 bar relaxed.
Die in der Turbine gewonnene Energie wird sowohl zum Antrieb des Kompressors 3 als auch zum Betreiben eines Generators 14 genutzt.The energy obtained in the turbine is used both to drive the compressor 3 and also used to operate a generator 14.
Das die Turbine 13 verlassende Rauchgas-Wasserdampf-Gemisch wird nunmehr dem Wärmetauscher 15 zugeführt, dort auf z.B. 800 C abgekühlt und dabei partiell kondensiert.The flue gas / steam mixture leaving the turbine 13 is now fed to the heat exchanger 15, where it is cooled to e.g. 800 C and thereby partially condensed.
Die im Wärmetauscher 15 gewonnene Wärme, die die Verdampfungswärme des Wassers mit enthält, kann z.B. für Fernwärmezwecke weitergenutzt werden.The heat obtained in the heat exchanger 15, which is the heat of evaporation of the water can be used for district heating purposes, for example.
Während das im Wärmetauscher 15 anfallende Rauchgas über einen Kamin 16 in die Atmosphäre abgeleitet wird, wird das auskondensierte Wasser gesammelt und zusammen mit dem ausgewaschenen Feinstaub sowie weiteren ausgewaschenen Schadstoffen über die Leitung 9 erneut der Wirbelbettfeuerung zugeführt.While the flue gas occurring in the heat exchanger 15 via a chimney 16 is discharged into the atmosphere, the condensed water is collected and together with the washed out fine dust and other washed out Pollutants are fed back to the fluidized bed furnace via line 9.
Gemäß der Erfindung kann das benötigte Wasser zumindest teilweise auch als "nasser Brennstoff", wie z.B. als Klärschlamm, als Schlamm aus Absetzbecken sowie als getrocknete Braunkohle, zugeführt werden.According to the invention, the required water can at least partially also as "wet fuel", e.g. as sewage sludge, as sludge from settling tanks as well as dried lignite.
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Claims (6)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853518512 DE3518512A1 (en) | 1985-05-23 | 1985-05-23 | METHOD FOR GENERATING ELECTRICITY AND HEAT BY MEANS OF A PRINTED FLUID BED BURNER |
| EP19860903345 EP0221979A1 (en) | 1985-05-23 | 1986-05-21 | Method for producing current and heat by means of a pressure fluidized bed heating plant |
| PCT/EP1986/000308 WO1986007114A1 (en) | 1985-05-23 | 1986-05-21 | Method for producing current and heat by means of a pressure fluidized bed heating plant |
| AU59536/86A AU5953686A (en) | 1985-05-23 | 1986-05-21 | Method for producing current and heat by means of a pressure fluidized bed heating plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853518512 DE3518512A1 (en) | 1985-05-23 | 1985-05-23 | METHOD FOR GENERATING ELECTRICITY AND HEAT BY MEANS OF A PRINTED FLUID BED BURNER |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3518512A1 true DE3518512A1 (en) | 1986-11-27 |
Family
ID=6271424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19853518512 Withdrawn DE3518512A1 (en) | 1985-05-23 | 1985-05-23 | METHOD FOR GENERATING ELECTRICITY AND HEAT BY MEANS OF A PRINTED FLUID BED BURNER |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0221979A1 (en) |
| AU (1) | AU5953686A (en) |
| DE (1) | DE3518512A1 (en) |
| WO (1) | WO1986007114A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4225858A1 (en) * | 1992-08-05 | 1994-02-10 | Steinmueller Gmbh L & C | Ash particle solidification and removal for a coal-dust fired gas-turbine installation - by partial cooling of combustion gases by injection of pass-out steam, water, or air |
| EP0602795A2 (en) * | 1992-11-13 | 1994-06-22 | Foster Wheeler Energy Corporation | Circulating fluidized bed reactor combined cycle power generation system |
| EP1091095A2 (en) * | 1999-10-05 | 2001-04-11 | Mitsubishi Heavy Industries, Ltd. | Gas turbine system and combined plant comprising the same |
| DE10001110A1 (en) * | 2000-01-13 | 2001-08-16 | Alstom Power Schweiz Ag Baden | Process for the recovery of water from the flue gas of a combined cycle power plant and combined cycle power plant for carrying out the process |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE463220B (en) * | 1989-02-03 | 1990-10-22 | Abb Stal Ab | SET TO INCREASE THE EFFECTIVENESS OF A PFBC POWER PLANT AND POWER PLANT |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE966644C (en) * | 1956-07-02 | 1957-08-29 | Basf Ag | Process for operating hot gas turbines |
| US3605655A (en) * | 1970-05-05 | 1971-09-20 | Fuller Co | Method and apparatus for incinerating combustible wastes |
| GB1536849A (en) * | 1975-08-18 | 1978-12-20 | Charbonnages De France | Process for producing granules by solidification of a product in the liquid phase |
| GB1548898A (en) * | 1975-05-15 | 1979-07-18 | Energy Equip | Combustion apparatus |
| US4223529A (en) * | 1979-08-03 | 1980-09-23 | General Electric Company | Combined cycle power plant with pressurized fluidized bed combustor |
| FR2491997A1 (en) * | 1980-10-09 | 1982-04-16 | G Pi | Gas turbine driven electricity generator - includes heat exchange circuit condensing water vapour from exhaust and supplying water to gas-vapour mixing valve on inlet |
| SE434883B (en) * | 1980-10-15 | 1984-08-20 | Stal Laval Turbin Ab | SET TO OPERATE A COMBINED GAS ANTURBIN INSTALLATION AND COMBINED GAS ANTURBIN INSTALLATION FOR USE OF THE SET |
| DE3103417A1 (en) * | 1981-02-02 | 1982-08-12 | Saarberg-Fernwärme GmbH, 6600 Saarbrücken | Process and apparatus for the oxidation of solid substances and aqueous sludges |
-
1985
- 1985-05-23 DE DE19853518512 patent/DE3518512A1/en not_active Withdrawn
-
1986
- 1986-05-21 AU AU59536/86A patent/AU5953686A/en not_active Abandoned
- 1986-05-21 WO PCT/EP1986/000308 patent/WO1986007114A1/en unknown
- 1986-05-21 EP EP19860903345 patent/EP0221979A1/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4225858A1 (en) * | 1992-08-05 | 1994-02-10 | Steinmueller Gmbh L & C | Ash particle solidification and removal for a coal-dust fired gas-turbine installation - by partial cooling of combustion gases by injection of pass-out steam, water, or air |
| EP0602795A2 (en) * | 1992-11-13 | 1994-06-22 | Foster Wheeler Energy Corporation | Circulating fluidized bed reactor combined cycle power generation system |
| EP0602795A3 (en) * | 1992-11-13 | 1994-10-12 | Foster Wheeler Energy Corp | Circulating fluidized bed reactor combined cycle power generation system. |
| US5440871A (en) * | 1992-11-13 | 1995-08-15 | Foster Wheeler Energy Corporation | Circulating fluidized bed reactor combined cycle power generation system |
| EP1091095A2 (en) * | 1999-10-05 | 2001-04-11 | Mitsubishi Heavy Industries, Ltd. | Gas turbine system and combined plant comprising the same |
| EP1091095A3 (en) * | 1999-10-05 | 2003-02-26 | Mitsubishi Heavy Industries, Ltd. | Gas turbine system and combined plant comprising the same |
| DE10001110A1 (en) * | 2000-01-13 | 2001-08-16 | Alstom Power Schweiz Ag Baden | Process for the recovery of water from the flue gas of a combined cycle power plant and combined cycle power plant for carrying out the process |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1986007114A1 (en) | 1986-12-04 |
| EP0221979A1 (en) | 1987-05-20 |
| AU5953686A (en) | 1986-12-24 |
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