EP2200664A1 - Method and device for cleaning a hot air stream - Google Patents
Method and device for cleaning a hot air streamInfo
- Publication number
- EP2200664A1 EP2200664A1 EP08802546A EP08802546A EP2200664A1 EP 2200664 A1 EP2200664 A1 EP 2200664A1 EP 08802546 A EP08802546 A EP 08802546A EP 08802546 A EP08802546 A EP 08802546A EP 2200664 A1 EP2200664 A1 EP 2200664A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air stream
- cleaning
- hot air
- filter device
- cleaning device
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
- B01D53/323—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/22—Ionisation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2035—Arrangement or mounting of filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
Definitions
- the invention relates to a method for cleaning a hot air stream.
- the purification of an air stream does not only mean the filtering out of undesired impurities, but also the separation, separation or destruction or reaction of particles, aerosols, condensate, moisture and in particular of gaseous organic carbon and hydrocarbon compounds.
- a filtering out or decomposition of gaseous organic carbon or hydrocarbon compounds is particularly useful and desirable if the air stream contains unpleasant odors or odor nuisance should be avoided after cleaning the air stream.
- a hot air stream is an air stream whose temperature is significantly above room temperature and, for example, 150 0 C or even more than 250 0 C. Hot airflow occurs, for example, when opening the door of a combi steamer, such as that used for home or industrial food preparation.
- Object of the present invention is to provide a method for cleaning a hot air flow in such a way that as effective as possible cleaning effect can be achieved in the shortest possible time and with the least possible effort.
- This object is achieved by a method for cleaning a hot air flow, wherein the air flow is passed through a cooling device and then through a filter device, the at least one
- Plasma generating device for removing gaseous organic carbon compounds is a multi-stage filter device, in the various cleaning methods, such as mechanical
- Cleaning process as the plasma cleaning with a previous cooling of the air flow can cause an improvement of the cleaning process, especially if in addition to the plasma cleaning also further process steps for cleaning the air stream are provided or other cleaning methods are used.
- the hot air flow by means of the cooling device to temperatures below 60 0 C is cooled before the cooled air stream is then fed to the filter device.
- mechanical baffle filters can also withstand higher temperatures, absorbing filter materials such as activated carbon at temperatures above 5O 0 C - 60 0 C are increasingly less effective and, optionally, ineffective or may be destroyed.
- the air stream to be cleaned is accelerated before it enters the filter device. It has been found that an acceleration of the air flow to be cleaned promotes efficient detection of the air flow to be cleaned and its supply to the filter device. A reduction in the cooling effect of a given cooling device, which may be unavoidable as a consequence of the acceleration of the air flow to be cleaned, is not noticeably significant in practice.
- the effectiveness of individual processing steps or the filter devices used in each case can be improved by virtue of the fact that the air stream to be cleaned is removed by means of is deflected suitable guide surfaces.
- the guide surfaces can either force a predetermined reduction of the effective cross-sectional area of the air flow or a uniform distribution of the air stream to be cleaned on the active
- the invention also relates to a cleaning device for a hot air stream, which according to the invention comprises a multi-stage filter device with at least one plasma generating device for removing gaseous organic carbon compounds and a cooling device upstream of the filter device.
- the cooling device has a spray device for a coolant.
- a liquid coolant such as water or other suitable cooling liquid
- a purification of the hot air flow can take place by particles or condensate droplets are washed out by the sprayed cooling liquid and discharged through a sump.
- the filter device has an open-pore, hydrophilic foam material, the plasma-generating device and a suitable absorber material, which are successively traversed by the air flow.
- the filter device additionally has an electrostatic precipitator.
- the known from practice electrostatic filter usually have a
- the entrained in the air flow particles and condensate droplets are electrically charged by means of the ionization and deposited on the oppositely electrically charged collector surfaces.
- the cleaning device has an air inlet with a narrowing and then widening inlet opening. Due to the narrowing inlet opening is accelerated by the
- Condensate droplets are already deposited alone by the deceleration of the air flow.
- the cleaning device has a plurality of juxtaposed fan.
- the flow rate of the air flow passed through the filter device can be influenced by the flow generation devices, which are referred to simply as fans. It is also conceivable that with regard to an advantageous use of space, the air flow is passed once or several times around a corner or its direction is changed, so that to avoid an undesirable lowering of the
- a plurality of guide surfaces are arranged side by side in the flow direction.
- the guide surfaces it is possible by simple means, for example, to bring about or at least promote a flow path which is as uniform as possible or else a small cross-sectional area.
- Fig. 1 is a schematic sectional view of a cleaning device
- Fig. 2 is a schematic sectional view of another cleaning device.
- Cleaning device 1 has a narrowing and then widening inlet opening 2, the is limited by two spaced-apart, curved flow guide plates 3, 4. The sucked and entering through the inlet opening 2 to be cleaned air flow is accelerated by the narrowing cross-section of the inlet opening 2, so that the air to be cleaned sucked more effectively and the detection range of the cleaning device 1 is increased.
- Spray device 5 arranged for a liquid coolant.
- the spray device 5 has a plurality of aligned in the flow direction spray nozzles 6, with which the liquid coolant can be sprayed and distributed in the air stream to be cleaned.
- the liquid coolant can be sprayed and distributed in the air stream to be cleaned.
- Cleaning device is a collecting sump 7 for collecting and subsequent discharge of the sprayed liquid coolant. Following this, there is a layer of an open-pored, hydrophilic foam material 8 which completely covers the cross-sectional area available for the air flow in the flow direction. With this open-pore, hydrophilic foam material, solid particles and liquid droplets are filtered out of the air stream and removed.
- the open-pore hydrophilic foam material in this context has the very advantageous property that, despite a low flow resistance, condensate droplets and contaminants are effectively filtered out of the air stream
- open-pored hydrophilic foam material itself discharged and fed to the sump 7. Following the open-pore hydrophilic foam material
- Foam material 8 is arranged in the flow direction of a plasma generating device 9, which causes a dielectrically impeded discharge and thereby generates a plasma, which leads to the removal of gaseous organic carbon compounds.
- the air flow to be cleaned is then deflected by means of a plurality of juxtaposed fan 10 and subsequently arranged curved guide surfaces 11 in an opposite flow guide.
- the air flow to be cleaned then becomes one
- Electric filter 12 supplied with an ionization device 13 and collector surfaces 14.
- the air flow can then escape through suitable openings on an upper side 17 of the cleaning device 1 again.
- a heat exchanger 18 of the spray device 5 illustrated in FIG. 1 is cooled caused by the inlet opening 2 incoming air flow.
- the air flow in the cleaning device 1 according to FIG. 2 is guided, before it leaves the cleaning device 1, through a mat 19 made of activated carbon.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007047356A DE102007047356A1 (en) | 2007-10-02 | 2007-10-02 | Method and device for cleaning a hot air stream |
PCT/EP2008/008064 WO2009046870A1 (en) | 2007-10-02 | 2008-09-24 | Method and device for cleaning a hot air stream |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2200664A1 true EP2200664A1 (en) | 2010-06-30 |
Family
ID=40174832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08802546A Ceased EP2200664A1 (en) | 2007-10-02 | 2008-09-24 | Method and device for cleaning a hot air stream |
Country Status (4)
Country | Link |
---|---|
US (1) | US20100282594A1 (en) |
EP (1) | EP2200664A1 (en) |
DE (1) | DE102007047356A1 (en) |
WO (1) | WO2009046870A1 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE536263C2 (en) | 2011-12-21 | 2013-07-23 | Airqone Building Scandinavia Ab | Gas medium purifier including means for controlled supply of ionized air |
CN102607085A (en) * | 2012-04-13 | 2012-07-25 | 宁波英奇金属制品有限公司 | Range hood capable of purifying |
DE202013103067U1 (en) * | 2013-07-10 | 2014-10-13 | BÄ*RO GmbH & Co. KG | Filter device for the removal of suspended matter such as grease, volatile components and / or odors from a stream of air |
CN105953283A (en) * | 2016-07-19 | 2016-09-21 | 青岛科技大学 | Composite-type catering industry oil smoke purification device |
CN106268163A (en) * | 2016-08-17 | 2017-01-04 | 厦门口水网络有限公司 | The device of hypergravity coupled low temperature plasma technology purifying oil fume |
CN106123074B (en) * | 2016-08-17 | 2018-05-18 | 华帝股份有限公司 | Method for cleaning oil stains on smoke exhaust ventilator fan |
CN106949514A (en) * | 2017-04-12 | 2017-07-14 | 深圳市高德威技术有限公司 | Utilize the novel oil smoke purification all-in-one of foam smoke abatement |
CN110081481B (en) * | 2018-01-26 | 2024-01-23 | 宁波方太厨具有限公司 | Self-cleaning range hood and control method thereof |
CN108954427A (en) * | 2018-05-29 | 2018-12-07 | 昆明金炊旺厨房环保设备安装工程有限公司 | Kitchen fume purification treatment method and equipment |
CN110986125B (en) * | 2019-11-25 | 2022-03-25 | 广东万和电气有限公司 | Control method for cleaning range hood |
CN110925846B (en) * | 2019-12-30 | 2021-12-17 | 宁波方太厨具有限公司 | Smoke guide plate assembly and range hood with smoke guide plate assembly |
DE102020100824A1 (en) * | 2020-01-15 | 2021-07-15 | oxytec ag | Vapor detection device for a cooking device and unit with cooking device and vapor detection device |
CN112755742A (en) * | 2020-12-31 | 2021-05-07 | 重庆派格机械设备有限责任公司 | High-temperature heavy oil sewage and waste gas treatment system |
DE102021214396A1 (en) * | 2021-12-15 | 2023-06-15 | BSH Hausgeräte GmbH | Vapor extraction device with filter system |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5593649A (en) * | 1989-03-08 | 1997-01-14 | Abtox, Inc. | Canister with plasma gas mixture for sterilizer |
US5482684A (en) * | 1994-05-03 | 1996-01-09 | Abtox, Inc. | Vessel useful for monitoring plasma sterilizing processes |
EP0785016A1 (en) * | 1996-01-17 | 1997-07-23 | Rafflenbeul & Partner | Process for cleaning contaminated air by combination of a biological cleaning step with a low temperature plasma cleaning step |
DE19616197C2 (en) * | 1996-04-23 | 1998-04-09 | Fraunhofer Ges Forschung | Exhaust gas treatment process |
JPH10169431A (en) * | 1996-12-12 | 1998-06-23 | Mitsubishi Motors Corp | Exhaust gas treating device |
US6189484B1 (en) * | 1999-03-05 | 2001-02-20 | Applied Materials Inc. | Plasma reactor having a helicon wave high density plasma source |
US6326597B1 (en) * | 1999-04-15 | 2001-12-04 | Applied Materials, Inc. | Temperature control system for process chamber |
US20040022673A1 (en) * | 2000-07-26 | 2004-02-05 | Jacques Protic | Sterilisation process and apparatus therefor |
US6911225B2 (en) * | 2001-05-07 | 2005-06-28 | Regents Of The University Of Minnesota | Method and apparatus for non-thermal pasteurization of living-mammal-instillable liquids |
DE50208871D1 (en) * | 2002-02-20 | 2007-01-11 | Manfred H Langner | METHOD AND FILTRATION FOR SEPARATING CONDENSATE AND THE SIMILAR |
JP2004041847A (en) * | 2002-07-09 | 2004-02-12 | Daikin Ind Ltd | Air cleaning apparatus |
KR100481544B1 (en) * | 2002-09-10 | 2005-04-08 | 삼성전자주식회사 | Wet-type electro photographic printer with a photocatalystic filter |
DE10312309A1 (en) * | 2003-03-20 | 2004-09-30 | Langner, Manfred H. | Device and method for purifying of discharged air, comprising high frequency field for creation of plasma |
WO2007042307A1 (en) * | 2005-10-14 | 2007-04-19 | Max Maier | Exhauster hood for a combi-steamer |
US8003058B2 (en) * | 2006-08-09 | 2011-08-23 | Airinspace B.V. | Air purification devices |
-
2007
- 2007-10-02 DE DE102007047356A patent/DE102007047356A1/en not_active Withdrawn
-
2008
- 2008-09-24 WO PCT/EP2008/008064 patent/WO2009046870A1/en active Application Filing
- 2008-09-24 US US12/680,967 patent/US20100282594A1/en not_active Abandoned
- 2008-09-24 EP EP08802546A patent/EP2200664A1/en not_active Ceased
Non-Patent Citations (1)
Title |
---|
See references of WO2009046870A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2009046870A1 (en) | 2009-04-16 |
US20100282594A1 (en) | 2010-11-11 |
DE102007047356A1 (en) | 2009-04-09 |
WO2009046870A8 (en) | 2010-04-22 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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Effective date: 20100430 |
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AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
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DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20130906 |
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REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
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STAA | Information on the status of an ep patent application or granted ep patent |
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18R | Application refused |
Effective date: 20150313 |