EP2370731A1 - Flue gas scrubbing device - Google Patents
Flue gas scrubbing deviceInfo
- Publication number
- EP2370731A1 EP2370731A1 EP09793456A EP09793456A EP2370731A1 EP 2370731 A1 EP2370731 A1 EP 2370731A1 EP 09793456 A EP09793456 A EP 09793456A EP 09793456 A EP09793456 A EP 09793456A EP 2370731 A1 EP2370731 A1 EP 2370731A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flue gas
- bypass
- cleaning device
- filter
- gas cleaning
- 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.)
- Granted
Links
- 239000003546 flue gas Substances 0.000 title claims abstract description 116
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 112
- 238000005201 scrubbing Methods 0.000 title abstract 3
- 238000004140 cleaning Methods 0.000 claims description 22
- 239000000428 dust Substances 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000004071 soot Substances 0.000 claims description 5
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 230000002441 reversible effect Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 abstract 1
- 238000013022 venting Methods 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 239000000126 substance 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
- F23J15/025—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 a flue gas cleaning device in a fireplace connected to a fireplace, the flue gas channel has a bypass containing a flue gas filter and a fan which promotes the flue gas to be cleaned through the bypass and the flue gas filter.
- Such a flue gas cleaning device is known for example from DE 34 44 437 A1.
- An essential feature of the previously known flue gas cleaning device 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 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 a constantly free flow cross-section, at least the free cross section of the flue gas duct before and behind 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 widened region of the Rauchgaska ⁇ ais öder in an e snntfscpi -rQcl-jgi-jcJ expanded attachment of the flue gas channel is arranged.
- This design and arrangement of the bypass are advantageous in that in normal operation, the incoming flue gas strikes directly on the inlet opening of the tubular housing and the outflowing flue gas is directed from the outlet opening of the tubular housing centrally on the continuing flue gas channel.
- bypass 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 area 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 channel 1a or the continuing flue gas channel 1c corresponds. 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 ah ⁇ eb ⁇ orfor carbon black or Tesr be ignited for the purpose of Abbrsnnens 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)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810059432 DE102008059432A1 (en) | 2008-11-27 | 2008-11-27 | Flue gas cleaning device |
PCT/EP2009/008383 WO2010060606A1 (en) | 2008-11-27 | 2009-11-25 | Flue gas scrubbing device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2370731A1 true EP2370731A1 (en) | 2011-10-05 |
EP2370731B1 EP2370731B1 (en) | 2016-01-27 |
Family
ID=42026304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09793456.6A Active EP2370731B1 (en) | 2008-11-27 | 2009-11-25 | Flue gas scrubbing device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2370731B1 (en) |
DE (1) | DE102008059432A1 (en) |
WO (1) | WO2010060606A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017052685A1 (en) * | 2015-09-21 | 2017-03-30 | Exxonmobil Chemical Patents Inc. | Process and apparatus for reducing thermal shock in a hydrocarbon steam cracking furnace |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013109932A1 (en) | 2013-09-10 | 2015-03-12 | Rwth Aachen | Flue gas cleaning device for small combustion plants |
DE102015103337A1 (en) | 2015-03-06 | 2016-09-08 | Oberland Mangold Gmbh | Flue gas dust filter |
DE102015004020B3 (en) * | 2015-03-27 | 2016-04-21 | Valentin Rosel | Boiler flue gas filter with autom. Filter change, filter cleaning, cooling with heat recovery and flue gas afterburning |
DE102017129808B3 (en) * | 2017-12-13 | 2019-05-02 | Kerafol Holding Gmbh | filtering device |
DE102020115589A1 (en) | 2020-06-12 | 2021-12-16 | dezentec ingenieurgesellschaft mbH | Fine dust separation device for small combustion systems |
EP3834910A1 (en) | 2019-12-12 | 2021-06-16 | dezentec ingenieurgesellschaft mbH | Fine dust separation device for small firing installations |
DE102021002932A1 (en) | 2021-06-10 | 2022-12-15 | dezentec GmbH | Fine dust separation device for small furnaces |
EP4382188A1 (en) | 2022-12-06 | 2024-06-12 | dezentec GmbH | Fine dust separation device for small firing installations |
DE102022004561A1 (en) | 2022-12-06 | 2024-06-06 | dezentec GbmH | Fine dust separation system for small combustion plants |
Family Cites Families (3)
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 (en) | 1984-12-06 | 1986-06-12 | Manfred Keiderling Metallbau, 6431 Friedewald | Device for cleaning chimney waste gases |
JP3191264B2 (en) * | 1997-02-27 | 2001-07-23 | ギャラクシー有限会社 | Electric dust collector and incinerator |
-
2008
- 2008-11-27 DE DE200810059432 patent/DE102008059432A1/en not_active Withdrawn
-
2009
- 2009-11-25 EP EP09793456.6A patent/EP2370731B1/en active Active
- 2009-11-25 WO PCT/EP2009/008383 patent/WO2010060606A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2010060606A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017052685A1 (en) * | 2015-09-21 | 2017-03-30 | Exxonmobil Chemical Patents Inc. | Process and apparatus for reducing thermal shock in a hydrocarbon steam cracking furnace |
Also Published As
Publication number | Publication date |
---|---|
WO2010060606A1 (en) | 2010-06-03 |
DE102008059432A1 (en) | 2010-06-02 |
EP2370731B1 (en) | 2016-01-27 |
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