DE3440583A1 - Steam or hot-water generator - Google Patents
Steam or hot-water generatorInfo
- Publication number
- DE3440583A1 DE3440583A1 DE19843440583 DE3440583A DE3440583A1 DE 3440583 A1 DE3440583 A1 DE 3440583A1 DE 19843440583 DE19843440583 DE 19843440583 DE 3440583 A DE3440583 A DE 3440583A DE 3440583 A1 DE3440583 A1 DE 3440583A1
- Authority
- DE
- Germany
- Prior art keywords
- steam
- water generator
- flue gas
- gas duct
- separation chamber
- 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- Withdrawn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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 238000000926 separation method Methods 0.000 claims abstract description 15
- 239000003546 flue gas Substances 0.000 claims description 17
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 8
- 239000007789 gas Substances 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract description 6
- 239000000779 smoke Substances 0.000 abstract description 4
- 239000000446 fuel Substances 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- F23J15/027—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 cyclone separators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus
- F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus with combustion in a fluidized bed
- F22B31/0046—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus with combustion in a fluidized bed for boilers of the shell type, e.g. with furnace box
- F22B31/0053—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus with combustion in a fluidized bed for boilers of the shell type, e.g. with furnace box with auxiliary water tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus
- F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus with combustion in a fluidized bed
- F22B31/0084—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus with combustion in a fluidized bed with recirculation of separated solids or with cooling of the bed particles outside the combustion bed
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
Description
Dampf- oder Heißwassererzeuger Steam or hot water generator
Die Erfindung betrifft einen Dampf- oder Heißwassererzeuger nach dem Oberbegriff des Patentanspruches 1.The invention relates to a steam or hot water generator according to the Preamble of claim 1.
Eine Einrichtung dieser Art ist etwa der DE-PS 31 07 355 zu entnehmen. Einer Wirbelschicht folgt dort ein Rauchgasschacht, eine zum Abgaskanal führende Abscheidekammer zum Abscheiden ausgetragenen Materiales und ein Rückführsystem zum erneuten Einspeisen des Materiales in die Wirbelschicht.A device of this type can be found in DE-PS 31 07 355, for example. A fluidized bed is followed there by a flue gas duct, one leading to the exhaust gas duct Separation chamber for separating discharged material and a return system to the renewed feeding of the material into the fluidized bed.
Eine wichtige Forderung an solche Anlagen besteht darin, einen ausreichenden Abscheidegrad zu erzielen. Es muß verhindert werden, daß aufgewirbelte Brennstoff- und Ascheteilchen vom Rauchgasstrom mitgerissen werden und durch den Abgaskanal ins Freie gelangen. Neben einer Vergeudung noch nutzbaren Brennstoffes würde dieses sonst zu erheblichen Umweltbelastungen führen.An important requirement of such systems is to have a sufficient To achieve a degree of separation. It must be prevented that whirled up fuel and ash particles are carried away by the flue gas flow and through the exhaust duct get outside. In addition to a waste of still usable fuel, this would otherwise lead to considerable environmental pollution.
Die erfindungsgemäße Lösung besteht in einer Ausbildung des Dampf- oder Heißwassererzeugers gemäß dem Kennzeichen des Patentanspruches 1.The solution according to the invention consists in a formation of the steam or hot water generator according to the characterizing part of claim 1.
Die Rauchgase gelangen nicht mehr direkt aus dem Rauchgasschacht bzw. aus einer ungenügend wirksamen Abscheidekammer in den Abgaskanal. Sie werden vielmehr zunächst durch einen Rauchgaszug engeren Querschnittes abwärts gelenkt. Die mitgerissenen Teilchen erfahren hier eine abwärts gerichtete Beschleunigung. In einer unteren Umlenk- und Abscheidekammer wird dann die Rauchgasströmung nach oben gelenkt, während sich die Feststoffteilchen infolge der beschleunigten Abwärtsbewegung ausscheiden.The flue gases no longer come directly from the flue gas shaft or from an insufficiently effective separation chamber into the exhaust gas duct. Rather, you will initially directed downwards by a flue gas duct with a narrower cross-section. The carried away Particles experience a downward acceleration here. In a lower one Deflection and separation chamber, the flue gas flow is then deflected upwards while the solid particles precipitate as a result of the accelerated downward movement.
Es wird ein sehr hoher Abscheidegrad erzielt.A very high degree of separation is achieved.
Durch einen der Umlenk- und Abscheidekammer folgenden, aufwärts durchströmten Nachschaltzug größeren Querschnittes als des Rauchgaszuges wird eine beruhigte Aufwärtsströinung der Rauchgase erzielt. Diese ruhige Strömung als Folge der vorherigen beschleunigten Abwärts strömung verhindert ein weiteres Mitreißen von Feststoffteilchen. In diesem Nachschaltzug können die fast vollständig gereinigten Rauchgase noch einen großen Teil ihrer Wärme an umgebendes Kesselwasser übertragen.Through one of the deflection and separation chambers following, flowed through upwards A downstream cable with a larger cross-section than the flue is a calmed upward flow the flue gases achieved. This calm flow accelerated as a result of the previous one Downward flow prevents further entrainment of solid particles. In this The almost completely cleaned flue gases can still make a big difference Transfer part of their heat to the surrounding boiler water.
Die noch sehr heißen abgeschiedenen Feststoffteilchen werden in einer unteren Auskühlzone gekühlt. Ihre Wärme wird ebenfalls ans Kesselwasser übertragen. Anschließend werden sie durch ein Förderaggregat, vorzugsweise eine Eintragschnecke, der Wirbelschicht zugeführt.The still very hot separated solid particles are in a the lower cooling zone. Your heat is also transferred to the boiler water. They are then fed by a conveyor unit, preferably a feed screw, fed to the fluidized bed.
Die beigefügte Zeichnung stellt Ausführungsbeispiele der Erfindung dar. Es zeigt: Fig. 1: Einen Längsschnitt durch einen Röhren-Dampferzeuger, Fig. 2: Einen vergrößerten Ausschnitt des Abscheide- und Rückführbereiches, Fig. 3: Einen Längsschnitt durch einen Dampf- bzw. Heißwassererzeuger und Fig. 4: Den Schnitt A-A durch Fig. 3.The accompanying drawings illustrate embodiments of the invention It shows: FIG. 1: A longitudinal section through a tubular steam generator, FIG. 2: An enlarged section of the separation and return area, FIG. 3: One Longitudinal section through a steam or hot water generator and Fig. 4: The section A-A through Fig. 3.
Einem Wirbelbett 1 mit einer Brennstoffzufuhr 2 folgt ein aufwärts durchströmter Rauchgasschacht 3. Eine Anzahl von Sekundärluftdüsen 4 sorgt für eine gute Nachverbrennung, während die Primärluft durch einen unteren Luftkanal 5 dem Brennstoff zugeführt wird. An den Rauchgasschacht 3 schließt sich ein abwärts durchströmter Rauchgaszug-6 engeren Querschnittes an. In diesem erfolgt eine abwärts gerichtete Beschleunigung der Rauchgase und der mitgerissenen Feststoffteilchen. In einer unteren Umlenk- und Abscheidekammer 7 werden die Rauchgase nach oben umgelenkt und nach einer Beruhigung durch einen aufwärts durchströmten Nachschaltzug 8 größeren Querschnittes als des Rauchgaszuges 6 zum Abgaskanal 9 geführt. Die Feststoffteilchen setzten hingegen ihre Abwärtsbewegung fort und gelangen zu einer Eintragschnecke 10, die sie wieder in das Wirbelbett 1 fördert. Der Raum zwischen Umlenk- und Abscheidekammer 7 und Förderschnecke 10 kann dabei als Auskühlzone 11 gestaltet seingA fluidized bed 1 with a fuel supply 2 is followed by an upward flue gas duct 3 with a flow through it. A number of secondary air nozzles 4 provide for one good afterburning, while the primary air through a lower air duct 5 the Fuel is supplied. A downward flow connects to the flue gas duct 3 Flue gas duct-6 with a narrower cross-section. In this one is directed downwards Acceleration of the smoke gases and the entrained solid particles. In a lower one Deflection and separation chamber 7, the flue gases are deflected upwards and after a calming by an upward flow through downstream cable 8 larger cross-section than the flue gas flue 6 led to the exhaust duct 9. The solid particles settled however, continue their downward movement and arrive at a feed screw 10, the it promotes back into the fluidized bed 1. The space between the deflection and separation chamber 7 and screw conveyor 10 can be designed as a cooling zone 11
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843440583 DE3440583A1 (en) | 1984-11-07 | 1984-11-07 | Steam or hot-water generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843440583 DE3440583A1 (en) | 1984-11-07 | 1984-11-07 | Steam or hot-water generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3440583A1 true DE3440583A1 (en) | 1986-05-07 |
Family
ID=6249664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19843440583 Withdrawn DE3440583A1 (en) | 1984-11-07 | 1984-11-07 | Steam or hot-water generator |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3440583A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988005887A1 (en) * | 1987-02-05 | 1988-08-11 | L. & C. Steinmüller Gmbh | Fluidized bed combustion plant with recycling of solids |
| EP0292406A1 (en) * | 1987-05-22 | 1988-11-23 | Constructions Industrielles De La Mediterranee C.N.I.M. | Process for producing a hot fluid and boiler for carrying out this process |
| EP0407730A3 (en) * | 1989-07-11 | 1991-03-20 | Deutsche Babcock Werke Aktiengesellschaft | Furnace, in particular fluidised bed furnace |
| US5275788A (en) * | 1988-11-11 | 1994-01-04 | Peter Stoholm | Circulating fluidized bed reactor |
| WO1996038689A1 (en) * | 1995-06-02 | 1996-12-05 | Austrian Energy & Environment Sgp/Waagner-Biro Gmbh | Separation process and device |
| FR2767906A1 (en) * | 1997-09-01 | 1999-03-05 | Gec Alsthom Stein Ind | Dust trap and extractor for waste incinerator fumes |
-
1984
- 1984-11-07 DE DE19843440583 patent/DE3440583A1/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988005887A1 (en) * | 1987-02-05 | 1988-08-11 | L. & C. Steinmüller Gmbh | Fluidized bed combustion plant with recycling of solids |
| DE3703471A1 (en) * | 1987-02-05 | 1988-08-18 | Steinmueller Gmbh L & C | Fluidized bed combustion system with solid matter recirculation |
| EP0292406A1 (en) * | 1987-05-22 | 1988-11-23 | Constructions Industrielles De La Mediterranee C.N.I.M. | Process for producing a hot fluid and boiler for carrying out this process |
| FR2615600A1 (en) * | 1987-05-22 | 1988-11-25 | Mediterranee Const Navales Ind | PROCESS FOR PRODUCING A HOT FLUID AND BOILER FOR PERFORMING THIS PROCESS |
| US5275788A (en) * | 1988-11-11 | 1994-01-04 | Peter Stoholm | Circulating fluidized bed reactor |
| EP0407730A3 (en) * | 1989-07-11 | 1991-03-20 | Deutsche Babcock Werke Aktiengesellschaft | Furnace, in particular fluidised bed furnace |
| WO1996038689A1 (en) * | 1995-06-02 | 1996-12-05 | Austrian Energy & Environment Sgp/Waagner-Biro Gmbh | Separation process and device |
| FR2767906A1 (en) * | 1997-09-01 | 1999-03-05 | Gec Alsthom Stein Ind | Dust trap and extractor for waste incinerator fumes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69205161T2 (en) | PULSATING ATMOSPHERIC FLUID BED COMBUSTION PLANT AND METHOD. | |
| EP0191141B1 (en) | Process and plant for reducing the nox-content in flue gas from burning fossilized fuels in combustion plants | |
| EP0133894B1 (en) | Process and device for the reheating of smoke after wet desulfurisation | |
| DE3151164C2 (en) | Device for expanding perlite, vermiculite and similar expanded material | |
| DE4206602C2 (en) | Process for removing pollutants from combustion exhaust gases and fluidized bed reactor therefor | |
| DE69002605T2 (en) | System for the treatment of waste in the molten state. | |
| EP0748647A1 (en) | Process and arrangement for reducing the dust content of the flue gas from a steam generator | |
| EP0903536A1 (en) | Steam generator with integrated dust separator | |
| DE2753209A1 (en) | METHOD AND DEVICE FOR REMOVING SULFUR OXIDES FROM AN EXHAUST GAS OR. COMBUSTION GAS FLOW | |
| EP0152529A2 (en) | Steam generator with a stationary fluidized bed combuster | |
| CH653097A5 (en) | COMBINED GAS TURBINE STEAM POWER PLANT. | |
| DE2262655A1 (en) | PROCESS AND SYSTEM FOR PURIFYING VARIOUS QUANTITIES OF EXHAUST GASES | |
| EP0407730B1 (en) | Furnace, in particular fluidised bed furnace | |
| DE3440583A1 (en) | Steam or hot-water generator | |
| US3435593A (en) | Gas cleaning process and apparatus | |
| DE4114782C2 (en) | Process and plant for the production of clinker mineral raw materials | |
| DE1551878A1 (en) | Process for reducing air pollution from combustion products | |
| DE19525106C1 (en) | Combustion plant | |
| DE911013C (en) | Wet multiple centrifugal dust separator and method for operating such | |
| EP0059315B1 (en) | Device for the separation of suspended matter such as ash or the like from flue gases | |
| DE3441923A1 (en) | Fluidised-bed furnace with downstream convection heating surfaces | |
| DE3835172C2 (en) | ||
| DE3736912C3 (en) | Process for the denitrification of combustion gases | |
| DE593122C (en) | Air flow mill for drying all kinds of goods | |
| DE3416193C2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8127 | New person/name/address of the applicant |
Owner name: OMNICAL GMBH, 6344 DIETZHOELZTAL, DE |
|
| 8141 | Disposal/no request for examination |