WO1986007114A1 - Method for producing current and heat by means of a pressure fluidized bed heating plant - Google Patents
Method for producing current and heat by means of a pressure fluidized bed heating plant Download PDFInfo
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- WO1986007114A1 WO1986007114A1 PCT/EP1986/000308 EP8600308W WO8607114A1 WO 1986007114 A1 WO1986007114 A1 WO 1986007114A1 EP 8600308 W EP8600308 W EP 8600308W WO 8607114 A1 WO8607114 A1 WO 8607114A1
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- Prior art keywords
- fluidized bed
- heat
- water
- flue gas
- pressure
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- 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
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
Definitions
- the invention relates to a method for electricity and heat generation by means of a pressure-operated fluidized bed furnace, in which the hot flue gases produced in the fluidized bed furnace are dedusted, then expanded to perform work and then cooled in a heat exchanger.
- Fluid bed furnaces have long been state of the art in numerous embodiments for different areas of application. Significant advantages can be seen in the fact that, in contrast to other types of combustion, low-value fuels with a high ballast content, such as ßallastkohle or processing exits, which are a by-product of hard coal processing and have not previously been used, but have been deposited, ver can be burned.
- this type of furnace is comparatively environmentally friendly, since at the low combustion temperatures there are almost no thermal nitrogen oxides and the sulfur oxides can be bound in the combustion chamber by adding suitable absorption agents such as limestone.
- Fluidized bed furnaces can be operated under atmospheric or overpressure conditions, in order to maintain the bed temperature, the heat generated is usually decoupled by means of so-called immersion heating surfaces, which are arranged in the fluidized bed and from a compressed working medium, e.g. Air for a gas turbine or water or water vapor for a steam turbine are flowed through.
- a compressed working medium e.g. Air for a gas turbine or water or water vapor for a steam turbine are flowed through.
- the working capacity of the flue gases can also be used to generate energy.
- the invention is therefore based on the object of further developing the aforementioned method for generating electricity and heat by means of a pressure-operated fluidized bed furnace in such a way that the furnace can be operated in the broadest possible power range and with a high power density.
- the water condensed out in the heat exchanger as a result of the cooling is again fed to the pressure fluidized bed combustion according to a further feature of the invention.
- Separate preparation is usually not necessary lent, since the solid particles carried in the circulating water, such as dust or CaSO 4 , for the most part attach themselves to the bed material and are removed from the fluidized bed with the ash.
- pre-cool the mixture of flue gas and water vapor leaving the fluidized bed firing before or also after its dedusting or partial dedusting and only then to feed it into the gas turbine.
- the expansion in the turbine takes place even at a lower temperature, with the result that the material stress on the turbine is correspondingly reduced and residual amounts of dust in the working fluid prove to be less disruptive.
- the heat generated in the course of pre-cooling at a relatively high temperature level can be used to generate steam.
- FIG. 1 shows a pressure fluidized bed boiler 1 operated at a pressure of, for example, 10 bar, with an integrated fluidized bed 2.
- the combustion air is used as the carrier gas, which is compressed in a compressor 3 and introduced into the fluidized bed via branch lines 4 in a manner known per se.
- the fresh coal is fed into the fluidized bed 2 via a line 5 together with lime, which serves as an absorbent for the sulfur oxides and is supplied via a line 6.
- Hot ash is passed through a pipe
- Heat is coupled out by means of immersion heating surfaces 8, which are arranged within the fluidized bed and through which a heat transfer medium flows.
- Compressed air can be used as the heat transfer medium as the working medium for a gas turbine, or else high-tension steam can be used as the working medium for a steam turbine.
- water is first fed into line 5 via line 9 and then into fluidized bed 2 together with the fuel.
- the performance of the fluidized bed combustion system can be increased considerably since it is now producing te additional amount of heat, without the temperature in the fluidized bed itself increasing, can be drawn off via the water vapor.
- the water flowing in the line 9 can also be sprayed into the fluidized bed 2 via a spray nozzle arrangement 17.
- the resulting mixture of flue gas and water vapor is first fed to a steam generator 11 via a line 10, there to e.g. Cooled 450 ° 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 relaxed.
- the energy obtained in the turbine is used both to drive the compressor 3 and to operate a generator 14.
- the flue gas-water vapor mixture leaving the turbine 13 is now fed to the heat exchanger 15, there on e.g. Cooled 80 ° C and partially condensed.
- the heat obtained in the heat exchanger 15, which also contains the heat of vaporization of the water, can e.g. continue to be used for district heating purposes.
- the water required can at least partially also be used as "wet fuel”, e.g. as sewage sludge, as sludge from sedimentation tanks and as dried lignite.
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- 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
Verfahren zur Strom- und Wärmeerzeugung mittels einer druckbetriebenen WirbelbettfeuerungProcess for the generation of electricity and heat by means of a pressure-operated fluidized bed furnace
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 electricity and heat generation by means of a pressure-operated fluidized bed furnace, in which the hot flue gases produced in the fluidized bed furnace are dedusted, then expanded to perform work and then cooled in a heat exchanger.
Wirbelbettfeuerungen zählen in zahlreichen Ausführungsformen 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. ßallastkohle oder Aufbereitungsabgänge, die als Nebenprodukt bei der Steinkohleaufbereitung anfallen und bisher nicht verwertet, sondern deponiert wurden, ver brannt 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. f ü r die gleichzeitige Erzeugung von Strom und nutzbarer Wärme in Heizkraftwerken, als geeignet erscheinen.Fluid bed furnaces have long been state of the art in numerous embodiments for different areas of application. Significant advantages can be seen in the fact that, in contrast to other types of combustion, low-value fuels with a high ballast content, such as ßallastkohle or processing exits, which are a by-product of hard coal processing and have not previously been used, but have been deposited, ver can be burned. In addition, this type of furnace is comparatively environmentally friendly, since at the low combustion temperatures there are almost no thermal nitrogen oxides and the sulfur oxides can be bound in the combustion chamber by adding suitable absorption agents such as limestone. These advantages also make fluidized bed firing seem suitable for power plant technology, for example for the simultaneous generation of electricity and usable heat in thermal power stations.
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 furnaces can be operated under atmospheric or overpressure conditions, in order to maintain the bed temperature, the heat generated is usually decoupled by means of so-called immersion heating surfaces, which are arranged in the fluidized bed and from a compressed working medium, e.g. Air for a gas turbine or water or water vapor for a steam turbine are flowed through. With fluidized bed combustion systems operated under pressure, the working capacity of the flue gases can also 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 Tauchheizflachen nicht genügend schnell abgeführt werden könnte.There are disadvantages in connection with the use of fluidized bed combustion in the field of power plant technology with regard to their controllability. The intended type of heat extraction via immersion heating surfaces, which are stored directly in the fluidized bed and are predetermined in their geometry and thus also in their heat absorption capacity, determine both the performance level of such a furnace and its load control speed from the outset. A further increase in the power density, for example by increasing the fuel supply, would lead to overheating in the fluidized bed, since the heat generated could not be dissipated sufficiently quickly via the immersion heating surfaces.
Der Erfindung liegt demnach die Aufgabe zugrunde, das eingangs genannte Verfahren zur Strom- und Warmeerzeugung 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 of further developing the aforementioned method for generating electricity and heat by means of a pressure-operated fluidized bed furnace in such a way that the furnace can be operated in the broadest possible power range and with a high power density.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß in die Wirbelbettfeuerung Wasser eingeführt und das entstehende Gemisch aus Rauchgas und Wasserdampf als Arbeitsbzw. Wärmeträgermedium den der Wirbelbettfeuerung nachgeschalteten Aggregaten zugeführt wird. 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. 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.This object is achieved in that water is introduced into the fluidized bed combustion and the resulting mixture of flue gas and steam as working or. Heat transfer medium is fed to the units downstream of the fluidized bed combustion. By introducing water into the fluidized bed, which is equivalent to direct cooling of the fluidized bed, according to the invention, the performance of the furnace can be increased without the disadvantages described above, such as damage to immersion heating surfaces due to overheating, occurring. The additional heat generated by an increase in output is used to generate steam. As a result, the amount of the working medium available for work-relieving relaxation in the turbine increases accordingly. Due to the high heat of vaporization of the water, relatively large amounts of heat can also be extracted from the fluidized bed and used in the turbine as well as in the downstream heat exchanger is useful in order to be able to utilize the heat accumulating in the heat exchanger, in particular the heat of evaporation of the water, for example for district heating purposes.
Das im Wärmetauscher infolge der Abkühlung auskondensierte Wasser wird nach einem weiteren Merkmal der Erfindung erneut der Druck wirbelbettfeuerung zugeführt. Dabei ist eine gesonderte Aufbereitung in der Regel nicht erforder lieh, da die im Kreislaufwasser mitgeführten Feststoffteilchen, wie z.B. Staub oder auch CaSO4, sich zum grössten Teil an das Bettmaterial anlagern und mit der Asche aus dem Wirbelbett ausgetragen werden.The water condensed out in the heat exchanger as a result of the cooling is again fed to the pressure fluidized bed combustion according to a further feature of the invention. Separate preparation is usually not necessary lent, since the solid particles carried in the circulating water, such as dust or CaSO 4 , for the most part attach themselves to the bed material and are removed from the fluidized bed with the ash.
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 may also be expedient to pre-cool the mixture of flue gas and water vapor leaving the fluidized bed firing before or also after its dedusting or partial dedusting and only then to feed it into the gas turbine. In this case, the expansion in the turbine takes place even at a lower temperature, with the result that the material stress on the turbine is correspondingly reduced and residual amounts of dust in the working fluid prove to be less disruptive. The heat generated in the course of pre-cooling at a relatively high temperature level 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 is to be seen in connection with a pressure-operated fluidized-bed combustion, it can also be used without any problems in the case of atmospheric fluidized-bed combustion.
Weitere Erläuterungen sind dem in der Figur schematisch dargestellten Ausführungsbeispiel zu entnehme.n. 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.Further explanations can be found in the exemplary embodiment shown schematically in the figure. The figure shows a pressure fluidized bed boiler 1 operated at a pressure of, for example, 10 bar, with an integrated fluidized bed 2. The combustion air is used as the carrier gas, which is compressed in a compressor 3 and introduced into the fluidized bed via branch lines 4 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 LeitungThe fresh coal is fed into the fluidized bed 2 via a line 5 together with lime, which serves as an absorbent for the sulfur oxides and is supplied via a line 6. Hot ash is passed through a pipe
7 aus dem Wirbelbett 2 abgezogen. Ein Teil der im Wirbelbett 2 bei einer Temperatur vo,n etwa 850º C anfallenden7 withdrawn from the fluidized bed 2. A part of the resulting in the fluidized bed 2 at a temperature of about 850 ° C.
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.Heat is coupled out by means of immersion heating surfaces 8, which are arranged within the fluidized bed and through which a heat transfer medium flows. Compressed air can be used as the heat transfer medium as the working medium for a gas turbine, or else high-tension steam can be used as the working medium for a steam turbine.
Gemäß 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 Maßnahme kann die Leistung der Wirbelschichtfeuerungsanlage erheblich hochgefahren werden, da die nunmehr produzier te 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, water is first fed into line 5 via line 9 and then into fluidized bed 2 together with the fuel. With this measure, the performance of the fluidized bed combustion system can be increased considerably since it is now producing te additional amount of heat, without the temperature in the fluidized bed itself increasing, can be drawn off via the water vapor. Possibly. the water flowing in the line 9 can also be sprayed into the fluidized bed 2 via a spray nozzle arrangement 17.
Das entstehende Gemisch aus Rauchgas und Wasserdampf wird zunächst über eine Leitung 10 einem Dampferzeuger 11 zugeleitet, dort auf z.B. 450º C abgekühlt, in einem Zyklon 12 einer Grobstaubabscheidung unterzogen und anschließend in einer Turbine 13 auf einen Druck von z.B. 1,1 bar entspannt.The resulting mixture of flue gas and water vapor is first fed to a steam generator 11 via a line 10, there to e.g. Cooled 450 ° 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 relaxed.
Die in der Turbine gewonnene Energfe 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 to operate a generator 14.
Das die Turbine 13 verlassende Rauchgas-Wasserdampf-Gemisch wird nunmehr dem Wärmetauscher 15 zugeführt, dort auf z.B. 80° C abgekühlt und dabei partiell kondensiert. Die im Wärmetauscher 15 gewonnene Wärme, die die Verdampf ungswärme des Wassers mit enthält, kann z.B. für Fernwärmezwecke weitergenutzt werden.The flue gas-water vapor mixture leaving the turbine 13 is now fed to the heat exchanger 15, there on e.g. Cooled 80 ° C and partially condensed. The heat obtained in the heat exchanger 15, which also contains the heat of vaporization of the water, can e.g. continue to be used for district heating purposes.
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 arising in the heat exchanger 15 is discharged into the atmosphere via a chimney 16, the condensed water is collected and together with the washed-out particulate matter and further washed-out pollutants are fed again 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 water required can at least partially also be used as "wet fuel", e.g. as sewage sludge, as sludge from sedimentation tanks and as dried lignite.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3518512.0 | 1985-05-23 | ||
| 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 |
|---|---|
| WO1986007114A1 true WO1986007114A1 (en) | 1986-12-04 |
Family
ID=6271424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1986/000308 Ceased WO1986007114A1 (en) | 1985-05-23 | 1986-05-21 | Method for producing current and heat by means of a pressure fluidized bed heating plant |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0221979A1 (en) |
| AU (1) | AU5953686A (en) |
| DE (1) | DE3518512A1 (en) |
| WO (1) | WO1986007114A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990008887A1 (en) * | 1989-02-03 | 1990-08-09 | Abb Stal Ab | Method of controlling a pfbc power plant and a pfbc power plant with equipment for such control |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4225858C2 (en) * | 1992-08-05 | 1995-05-18 | Steinmueller Gmbh L & C | Steam gas turbine plant |
| CA2102637A1 (en) * | 1992-11-13 | 1994-05-14 | David H. Dietz | Circulating fluidized bed reactor combined cycle power generation system |
| JP2001107743A (en) * | 1999-10-05 | 2001-04-17 | Mitsubishi Heavy Ind Ltd | Gas turbine system and combined plant having 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 |
Citations (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 |
| GB1326658A (en) * | 1970-05-05 | 1973-08-15 | Fuller Co | Method and apparatus for treating material |
| 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 |
| GB2087252A (en) * | 1980-10-15 | 1982-05-26 | Stal Laval Turbin Ab | Combined gas and steam turbine plant |
| 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 EP EP19860903345 patent/EP0221979A1/en not_active Withdrawn
- 1986-05-21 WO PCT/EP1986/000308 patent/WO1986007114A1/en not_active Ceased
- 1986-05-21 AU AU59536/86A patent/AU5953686A/en not_active Abandoned
Patent Citations (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 |
| GB1326658A (en) * | 1970-05-05 | 1973-08-15 | Fuller Co | Method and apparatus for treating material |
| GB1548898A (en) * | 1975-05-15 | 1979-07-18 | Energy Equip | Combustion apparatus |
| GB1536849A (en) * | 1975-08-18 | 1978-12-20 | Charbonnages De France | Process for producing granules by solidification of a product in the liquid phase |
| 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 |
| GB2087252A (en) * | 1980-10-15 | 1982-05-26 | Stal Laval Turbin Ab | Combined gas and steam turbine plant |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990008887A1 (en) * | 1989-02-03 | 1990-08-09 | Abb Stal Ab | Method of controlling a pfbc power plant and a pfbc power plant with equipment for such control |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0221979A1 (en) | 1987-05-20 |
| DE3518512A1 (en) | 1986-11-27 |
| AU5953686A (en) | 1986-12-24 |
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