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EP2200664A1 - Procédé et dispositif pour purifier un flux d'air très chaud - Google Patents

Procédé et dispositif pour purifier un flux d'air très chaud

Info

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
Application number
EP08802546A
Other languages
German (de)
English (en)
Inventor
Manfred H. Langner
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2200664A1 publication Critical patent/EP2200664A1/fr
Ceased legal-status Critical Current

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.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Epidemiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

L'invention se rapporte à un procédé pour purifier un flux d'air très chaud dans lequel le flux d'air est guidé dans un dispositif de refroidissement puis dans un dispositif de filtration qui présente au moins un système générateur de plasma (9) pour éliminer les composés hydrocarbonés organiques gazeux. Grâce au dispositif de refroidissement, on refroidit le flux d'air très chaud à des températures inférieures à 600 °C. On accélère le flux d'air à purifier avant qu'il ne pénètre dans le dispositif de filtration et on le dévie grâce à des surfaces de guidage (11) adaptées. Un dispositif de purification (1) pour flux d'air très chaud présente un dispositif de filtration doté d'un système générateur de plasma pour éliminer les composés hydrocarbonés organiques gazeux ainsi qu'un dispositif de refroidissement raccordé en amont du dispositif de filtration. Le dispositif de refroidissement présente un dispositif (5) pour pulvériser un agent réfrigérant. Le dispositif de filtration présente une mousse hydrophile (8) à pores ouverts, le système générateur de plasma (9) et un matériau absorbant adapté, ces éléments étant traversés successivement par le flux d'air.
EP08802546A 2007-10-02 2008-09-24 Procédé et dispositif pour purifier un flux d'air très chaud Ceased EP2200664A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007047356A DE102007047356A1 (de) 2007-10-02 2007-10-02 Verfahren und Vorrichtung zum Reinigen eines heißen Luftstroms
PCT/EP2008/008064 WO2009046870A1 (fr) 2007-10-02 2008-09-24 Procédé et dispositif pour purifier un flux d'air très chaud

Publications (1)

Publication Number Publication Date
EP2200664A1 true EP2200664A1 (fr) 2010-06-30

Family

ID=40174832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08802546A Ceased EP2200664A1 (fr) 2007-10-02 2008-09-24 Procédé et dispositif pour purifier un flux d'air très chaud

Country Status (4)

Country Link
US (1) US20100282594A1 (fr)
EP (1) EP2200664A1 (fr)
DE (1) DE102007047356A1 (fr)
WO (1) WO2009046870A1 (fr)

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SE536263C2 (sv) * 2011-12-21 2013-07-23 Airqone Building Scandinavia Ab Reningsanordning för gasmedium innefattande medel för kontrollerad tillförsel av joniserad luft
CN102607085A (zh) * 2012-04-13 2012-07-25 宁波英奇金属制品有限公司 一种净化油烟机
DE202013103067U1 (de) * 2013-07-10 2014-10-13 BÄ*RO GmbH & Co. KG Filtervorrichtung zur Beseitigung von Schwebstoffen wie beispielsweise Fett, leicht flüchtigen Komponenten und/oder Geruchsstoffen aus einem Luftstrom
CN105953283A (zh) * 2016-07-19 2016-09-21 青岛科技大学 复合式餐饮业油烟净化装置
CN106268163A (zh) * 2016-08-17 2017-01-04 厦门口水网络有限公司 超重力耦合低温等离子技术净化油烟的装置
CN106123074B (zh) * 2016-08-17 2018-05-18 华帝股份有限公司 一种烟机风机清洗油渍的方法
CN106949514A (zh) * 2017-04-12 2017-07-14 深圳市高德威技术有限公司 利用泡沫除烟的新型油烟净化一体机
CN110081481B (zh) * 2018-01-26 2024-01-23 宁波方太厨具有限公司 自清洁吸油烟机及其控制方法
CN108954427A (zh) * 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 厨房油烟净化处理方法和设备
CN110986125B (zh) * 2019-11-25 2022-03-25 广东万和电气有限公司 清洗烟机的控制方法
CN110925846B (zh) * 2019-12-30 2021-12-17 宁波方太厨具有限公司 一种导烟板组件和应用有该导烟板组件的吸油烟机
DE102020100824B4 (de) * 2020-01-15 2024-10-31 oxytec ag Wrasenerfassungseinrichtung für ein Gargerät und Einheit mit Gargerät und Wrasenerfassungseinrichtung
CN112755742A (zh) * 2020-12-31 2021-05-07 重庆派格机械设备有限责任公司 一种高温重油污废气处理系统
DE102021214396A1 (de) * 2021-12-15 2023-06-15 BSH Hausgeräte GmbH Dunstabzugsvorrichtung mit Filtersystem

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Also Published As

Publication number Publication date
DE102007047356A1 (de) 2009-04-09
US20100282594A1 (en) 2010-11-11
WO2009046870A1 (fr) 2009-04-16
WO2009046870A8 (fr) 2010-04-22

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