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EP2370731B1 - Dispositif de lavage de gaz de fumées - Google Patents

Dispositif de lavage de gaz de fumées Download PDF

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Publication number
EP2370731B1
EP2370731B1 EP09793456.6A EP09793456A EP2370731B1 EP 2370731 B1 EP2370731 B1 EP 2370731B1 EP 09793456 A EP09793456 A EP 09793456A EP 2370731 B1 EP2370731 B1 EP 2370731B1
Authority
EP
European Patent Office
Prior art keywords
flue gas
arrangement according
bypass
filter
fan
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.)
Active
Application number
EP09793456.6A
Other languages
German (de)
English (en)
Other versions
EP2370731A1 (fr
Inventor
Claus Bachmann
Arnd SÄNGER
Orhan Pirecioglu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schraeder GmbH
Original Assignee
Schraeder GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schraeder GmbH filed Critical Schraeder GmbH
Publication of EP2370731A1 publication Critical patent/EP2370731A1/fr
Application granted granted Critical
Publication of EP2370731B1 publication Critical patent/EP2370731B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F23J15/025—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/10—Intercepting solids by filters
    • F23J2217/102—Intercepting solids by filters electrostatic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/10—Intercepting solids by filters
    • F23J2217/104—High temperature resistant (ceramic) type

Definitions

  • the invention relates to an arrangement of a flue gas cleaning device in a fireplace connected to a fireplace whose flue gas channel has a bypass containing a flue gas filter and a fan which promotes the flue gas to be purified through the bypass and the flue gas filter.
  • Such an arrangement is for example from the DE 34 44 437 A1 known.
  • An essential feature of the previously known arrangement is a shut-off and throttling device arranged in the region of the flue gas duct bridged by the bypass, which can throttle or completely shut off the region of the flue gas duct bridged by the bypass.
  • this throttle device should be opened by means of the flue gases, so that the flue gases can flow unhindered in this case, albeit unrefined.
  • the valve flap of this throttle device is formed as low as possible.
  • the invention proposes, starting from the arrangement of a flue gas cleaning device of the type mentioned above, that the flue gas channel in the bridged by bypass area is free of shut-off and throttle bodies and has a constantly free flow cross-section, at least the free cross section of the flue gas duct upstream and downstream of the bypass, and that the fan is designed and controllable to deliver at least as much flue gas through the bypass and flue gas filter as it flows in from the hearth.
  • the teaching of the invention absolutely ensures that always a free flue gas outlet is guaranteed. Even with clogging of the bypass located in the flue gas cleaning facilities or total failure of the bypass fan is constantly the full cross-section of the flue gas duct available for the deduction of flue gases. Nevertheless, during normal operation, the entire flue gas flow is conveyed through the bypass and through the flue gas filter located in the bypass. Even if the blower promotes more flue gas through the bypass than can flow off via the flue gas duct, the flue gas purification device according to the invention works flawlessly.
  • a particularly preferred embodiment of the invention provides that the bypass is formed as a tubular housing, which is centered in a flared region of the flue gas duct or in a corresponding expanded attachment of the flue gas channel is arranged.
  • This design and arrangement of the bypass are advantageous in that during normal operation, the incoming flue gas strikes directly on the inlet opening of the tubular housing and the outflowing flue gas is directed centrally from the outlet opening of the tubular housing to the continuing flue gas channel. If the bypass is clogged in whole or in part, flows through the inflowing flue gas without having to be strongly deflected surrounding the tubular housing annular space whose free cross section is at least as large as the cross section of the flue gas duct in front of and behind the bypass.
  • the fan drive is expediently arranged outside the chimney.
  • the fan is advantageously arranged in the flow direction of the flue gas behind the flue gas filter. This ensures that the blower is kept largely free of dust and soot.
  • the flue gas filter includes a plurality of parallel or successively arranged filter elements. This makes it possible to achieve a particularly large filter surface.
  • the filter elements are expediently made of ceramic material. This has the advantage that the filter elements can be cleaned by burning off the deposits deposited on it, without the filter elements themselves being affected.
  • the flue gas filter can contain an electrostatic dust deposit. Such electrostatic precipitation can significantly increase the efficiency of dust separation.
  • the flue gas filter contains one or more electrical discharge electrodes for the electrical charging of the Flue gas contained particles and fluidically downstream electrically conductive collecting electrodes, where the electrically charged particles of the flue gas stream can be reflected.
  • the electrically conductive collecting electrodes are formed by the ceramic filter elements, which are designed to be electrically conductive for this purpose and thus have a dual function on the one hand as a mechanical filter and on the other hand as collecting electrodes of electrical dust separation.
  • the flue gas filter is assigned an ignition device, with the aid of which the soot and tar can be specifically ignited on the ceramic filters.
  • the conveying direction of the blower is reversible. By reversing the direction of conveyance, dust and ash can easily be removed from the filter elements.
  • the blower is equipped with a load sensor.
  • temperature and flow sensors are provided in the flue gas stream at appropriate locations.
  • the Abinstitutsvortician be initiated when the load sensor of the fan indicates an overload of the fan and thus a clogging of the flue gas filter.
  • the flue gas duct of a chimney is designated by the reference numeral 1, with 1a of the flue gas duct arriving from the hearth, with 1b a flared portion of the flue gas duct and with 1c of the flue flue leading to the flue.
  • a tubular housing 2 is arranged centrally, which is open at both end faces and forms a bypass 3 for the flue gas flowing through.
  • the flow cross-section is constantly open, is free of shut-off and throttle bodies and has a free cross section, at least the free cross section of the incoming flue gas duct 1a or of the secondary flue gas duct 1c. This ensures that the flue gas can flow freely even if the bypass 3 for some reason is not passable.
  • a flue gas filter 5 and a fan 6 are arranged in the bypass 3.
  • the fan 6 is driven by a motor 7, which is located outside of the flue gas duct and is connected via a drive train 8 with the blower 6.
  • the conveying direction of the blower 6 is reversible.
  • the motor 7 of the blower 6 is provided with a load sensor 9 which monitors the motor 7 for overload.
  • the flue gas filter 5 operates both mechanically and electrostatically and contains spray electrodes 10, on which the particles contained in flue gas can charge electrically. Downstream of the spray electrodes 10 are mechanically operating filter elements 11 made of ceramic material, which are designed to be electrically conductive so as to simultaneously serve as collecting electrodes for the electrostatic filtering.
  • the filter elements 11 thus have a dual function for the mechanical filtering on the one hand and the electrostatic filtering on the other.
  • the filter elements 11 is further associated with an electric igniter 12, with the help of which on the ceramic filter elements 11 deposited soot or tar are ignited for the purpose of burning can. After burning, the conveying direction of the blower 6 is reversed, so that the remaining incombustible substances are pushed back into the chimney as ashes and can there be disposed of in the usual way via a cleaning opening from the chimney sweep.
  • the illustrated flue gas cleaning device for the purpose of control and monitoring with temperature sensors 13 and / or heat sensors 14 is provided, which are arranged at appropriate locations.
  • the delivery rate of the blower 6 arranged in the bypass 3 is designed and controlled such that in normal operation at least as much flue gas is conveyed through the bypass 3 and the flue gas filter 5, as flows from the hearth, or flows out to the trigger. Is - as shown in the embodiment by arrows - the throughput through the bypass 3 is greater than the inflowing or outflowing flue gas, so a part of the flue gas is recirculated through the annulus 4 and passes through the filter 5 a second time. This process is harmless and leads at most to a small increase in energy consumption.
  • bypass 3 is completely or partially impassable, such as the fact that the fan 6 fails or the filter 5 clogged, the flue gas - but then unfiltered - easily flow through the annulus 4 at any time.
  • the illustrated in the drawing section of the flue gas duct 1 with built-in flue gas filter can optionally be prefabricated in the form shown and inserted in the construction of a fireplace in the flue gas duct.
  • the unit shown in the drawing may also be placed on the upper end of a flue gas duct.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Chimneys And Flues (AREA)

Claims (12)

  1. Agencement d'un dispositif de lavage de gaz de fumées dans une cheminée raccordée à un foyer, dont le canal de gaz de fumées (1) présente une dérivation (3) contenant un filtre à gaz de fumées (5) et un ventilateur (6), refoulant les gaz de fumées à laver à travers la dérivation (3) et le filtre à gaz de fumées (5), caractérisé en ce que le canal de gaz de fumées (1) est exempt d'organes de blocage et d'étranglement dans la zone (4) contournée par la dérivation, et présente une section transversale d'écoulement restant toujours libre d'accès, qui correspond au moins à la section transversale du canal de gaz de fumées (1) en amont et en aval de la dérivation (3), et en ce que la soufflerie (6) est conçue et peut être commandée de telle manière que la quantité de gaz de fumées qu'elle refoule à travers la dérivation (3) et le filtre à gaz de fumées (5) correspond au moins à la quantité de gaz de fumées provenant du foyer.
  2. Agencement selon la revendication 1, caractérisé en ce que la dérivation (3) est réalisée sous la forme d'un boîtier de forme tubulaire (2), qui est disposé centralement dans une zone élargie (1b) du canal de gaz de fumées (1) ou dans un bossage évasé correspondant du canal de gaz de fumées (1).
  3. Agencement selon les revendications 1 et 2, caractérisé en ce que le moteur de ventilateur (7) est disposé à l'extérieur du canal de gaz de fumée (1).
  4. Agencement selon la revendication 1, caractérisé en ce que le ventilateur (6), vu dans la direction d'écoulement des gaz de fumées, est agencé en aval du filtre à gaz de fumée (5).
  5. Agencement selon la revendication 1, caractérisé en ce que le filtre à gaz de fumées (5) comprend une pluralité d'éléments filtrants (11) disposés en parallèle ou les uns derrière les autres.
  6. Agencement selon la revendication 5, caractérisé en ce que les éléments filtrants (11) sont en matériau céramique.
  7. Agencement selon la revendication 1, caractérisé en ce que le filtre à gaz de fumées (5), en plus des éléments filtrants mécaniques (11), contient un collecteur de poussière électrostatique.
  8. Agencement selon la revendication 7, caractérisé en ce que le collecteur de poussières électrostatique comprend une ou plusieurs électrodes de décharge électrique (10) pour charger les particules contenues dans les gaz de fumées, et une ou plusieurs électrodes collectrices électriquement conductrices en aval raccordées de manière fluidique, sur lesquelles se précipitent les particules chargées électriquement du flux de gaz de fumées.
  9. Agencement selon les revendications 6 à 8, caractérisé en ce que les éléments filtrants en céramique (11) sont réalisés électriquement conducteurs, et servent en même temps d'électrode collectrice pour le collecteur de poussière électrostatique.
  10. Agencement selon la revendication 1, caractérisé en ce que le filtre à gaz de fumées (5) est associé à un dispositif d'allumage (12), pour allumer de la suie ou du goudron déposé dans le filtre à gaz de fumées (5).
  11. Agencement selon la revendication 1, caractérisé en ce que la direction de transport du ventilateur (6) est réversible.
  12. Agencement selon l'une quelconque des revendications 1 à 11, caractérisé par un capteur de charge (9) associé à l'entraînement de ventilateur (7), et des capteurs de température (13) et capteurs de débit (14) agencés dans le flux de gaz du fumées.
EP09793456.6A 2008-11-27 2009-11-25 Dispositif de lavage de gaz de fumées Active EP2370731B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810059432 DE102008059432A1 (de) 2008-11-27 2008-11-27 Rauchgasreinigungsvorrichtung
PCT/EP2009/008383 WO2010060606A1 (fr) 2008-11-27 2009-11-25 Dispositif de lavage de gaz de fumées

Publications (2)

Publication Number Publication Date
EP2370731A1 EP2370731A1 (fr) 2011-10-05
EP2370731B1 true EP2370731B1 (fr) 2016-01-27

Family

ID=42026304

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09793456.6A Active EP2370731B1 (fr) 2008-11-27 2009-11-25 Dispositif de lavage de gaz de fumées

Country Status (3)

Country Link
EP (1) EP2370731B1 (fr)
DE (1) DE102008059432A1 (fr)
WO (1) WO2010060606A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10160919B2 (en) 2015-09-21 2018-12-25 Exxonmobil Chemical Patents Inc. Process and apparatus for reducing thermal shock in a hydrocarbon steam cracking furnace

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013109932A1 (de) 2013-09-10 2015-03-12 Rwth Aachen Rauchgasreinigungseinrichtung für Kleinfeuerungsanlagen
DE102015103337A1 (de) 2015-03-06 2016-09-08 Oberland Mangold Gmbh Rauchgas-Staubfilter
DE102015004020B3 (de) * 2015-03-27 2016-04-21 Valentin Rosel Heizkessel Rauchgasfilter mit autom. Filterwechsel, Filterreinigung, Kühlung mit Wärmerückgewinnung und Rauchgas-Nachverbrennung
DE102017129808B3 (de) 2017-12-13 2019-05-02 Kerafol Holding Gmbh Filtereinrichtung
DE102020115589A1 (de) 2020-06-12 2021-12-16 dezentec ingenieurgesellschaft mbH Feinstaubabscheidungseinrichtung für Kleinfeuerungsanlagen
EP3834910A1 (fr) 2019-12-12 2021-06-16 dezentec ingenieurgesellschaft mbH Dispositif de séparation des poussières fines pour petites installations de combustion
DE102021002932A1 (de) 2021-06-10 2022-12-15 dezentec GmbH Feinstaubabscheidungseinrichtung für Kleinfeuerungsanlagen
EP4382188A1 (fr) 2022-12-06 2024-06-12 dezentec GmbH Dispositif de séparation de poussières fines pour petites installations de combustion
DE102022004561A1 (de) 2022-12-06 2024-06-06 dezentec GbmH Feinstaubabscheidungseinrichtung für Kleinfeuerungsanlagen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4279629A (en) * 1980-02-14 1981-07-21 Simms Donald S Fire prevention filter for chimneys and the like
DE3444437A1 (de) 1984-12-06 1986-06-12 Manfred Keiderling Metallbau, 6431 Friedewald Geraet zur reinigung von kaminabgasen
JP3191264B2 (ja) * 1997-02-27 2001-07-23 ギャラクシー有限会社 電気集塵装置および焼却炉

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10160919B2 (en) 2015-09-21 2018-12-25 Exxonmobil Chemical Patents Inc. Process and apparatus for reducing thermal shock in a hydrocarbon steam cracking furnace

Also Published As

Publication number Publication date
EP2370731A1 (fr) 2011-10-05
DE102008059432A1 (de) 2010-06-02
WO2010060606A1 (fr) 2010-06-03

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