EP1080331B1 - Luftbefeuchtung - Google Patents

Luftbefeuchtung Download PDF

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Publication number
EP1080331B1
EP1080331B1 EP00912455A EP00912455A EP1080331B1 EP 1080331 B1 EP1080331 B1 EP 1080331B1 EP 00912455 A EP00912455 A EP 00912455A EP 00912455 A EP00912455 A EP 00912455A EP 1080331 B1 EP1080331 B1 EP 1080331B1
Authority
EP
European Patent Office
Prior art keywords
porous body
air
membrane
air humidifier
water
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.)
Expired - Lifetime
Application number
EP00912455A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1080331A2 (de
Inventor
Norbert Stroh
Eckehard Walitza
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.)
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Publication of EP1080331A2 publication Critical patent/EP1080331A2/de
Application granted granted Critical
Publication of EP1080331B1 publication Critical patent/EP1080331B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/04—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F2006/006—Air-humidification, e.g. cooling by humidification with water treatment

Definitions

  • the present invention relates to a device for humidifying air as well as a process for humidification using this device.
  • Air of a certain humidity is in many cases desired or necessary, for example in air conditioning technology or medicine. Air from compressed air lines or bottles is usually too dry while ambient air shows large fluctuations in their moisture and often not in their composition meets the requirements.
  • the water evaporation pipe includes a water evaporation pipeline made of a porous hydrophobic polymer, for example Polyolefin, polycarbonate etc. This porous The inside of the hydrophobic pipe has a Layer of a hydrophilic water vapor permeable Material covered that has no pores having. That through the water evaporation pipe flowing water can therefore only be in the form of water vapor get into the environment from the line and humidify the air there.
  • the flow channels must be relatively large or Hollow fiber diameters must not be too small.
  • this has the disadvantage that none high packing density can be achieved.
  • the large-scale production of such modules not yet tried and will probably be a very involve complex procedures.
  • the present invention is therefore technical Problem with using a humidifier To provide the aforementioned disadvantages overcomes, especially a large contact area from water to air with little at the same time Provides flow pressure loss.
  • a humidifier comprising a membrane contactor, the Membrane contactor a hydrophilic, porous body and at least one in the hydrophilic, porous Body embedded microporous tubular membrane that permeable to water, but impermeable to Microorganisms and high molecular components is.
  • the invention is the hydrophilic, porous Body a body made of a ceramic material, hereinafter called ceramic body.
  • the body can be made exclusively from the ceramic material exist or in substantial quantities, preferably in an amount of more than 50% by weight, based on body weight.
  • ceramic coarse filters are used as they are for molten metal filtration be used.
  • the embodiment of the invention is the hydrophilic, porous body made of a polymer, that is consists of this polymer or contains this polymer in substantial amounts, preferably in an amount of more than 50 wt .-%, based on the Body weight.
  • hydrophilic porous bodies made of other materials if they are able to a distribution of water over a large surface to ensure.
  • organic or inorganic tissues or tissue-like structures are used, consisting of or containing essential parts, preferably more than 50% by weight (based on Body weight), porous thread material.
  • the body should be hydrophilic and a porous, that is have an enlarged surface structure.
  • Bodies thus preferably have a self-supporting and incompressible structure.
  • pore diameter of the pores of the hydrophilic, porous body less than or equal to 5 mm.
  • a membrane contactor according to the invention consisting of at least one tubular membrane and hydrophilic porous body understood.
  • the function of a Membrane contact lies in it, over that in it contained at least one tubular membrane sterilization to reach the water while the hydrophilic porous body as surface enlarging Contact medium between air and sterile water serves.
  • the membrane contactor according to the invention can in conventional humidifiers in the form of a module individually, with other modules and the water supply installed in series or in parallel his.
  • membrane contactor in a humidifier wherever humidified aseptic Air is necessary, for example in air conditioning systems both stationary, for example in buildings, as well as in mobile units like vehicles, in room humidifiers, sterile benches, operating theaters, Laboratories, in the manufacture of Drugs or sterile equipment or at the Storage of valuable cultural goods such as books or in storage and exhibition rooms, museums Etc..
  • a membrane means a technical membrane, particularly preferably a thin, foil-like and microporous separation layer.
  • Such one porous membrane can have a foam-like network structure exhibit.
  • the use is homogeneous trained membranes as well as the use asymmetrical, for example from a support and separation layer of constructed membranes.
  • the membrane according to the invention is more preferred So way a membrane filter, which is particularly preferred
  • ceramic or polymeric material for example cellulose derivatives, Polyamides, polyvinyl chloride, polysulfone and / or Teflon can be made and from this exists or in substantial parts, contains in particular more than 50% by weight.
  • the membranes are 50 to 250 ⁇ m thick.
  • the membranes according to the invention are tubular or tubular membrane.
  • capillary membranes can also be provided or hollow fiber membranes to bundles of summarize tubular tubes and bundles to integrate into the hydrophilic body.
  • the invention provides a particularly preferred one Embodiment before that the at least one tubular membrane a ceramic tube membrane or a polymer Filtration membrane, in particular microfiltration membrane is.
  • a ceramic tube membrane or a polymer Filtration membrane in particular microfiltration membrane is.
  • you can too other tubular membranes can be used as long as they essentially tubular shapes as well as a pore diameter have the retention of microorganisms, for example bacteria, fours, cells of human, animal or vegetable origin, Parts thereof and / or high molecular substances allows.
  • the tubular membranes have pores with a diameter from ⁇ 0.2 ⁇ m, in particular from 0.01 to 0.20 ⁇ m, on.
  • Filtration hollow fibers can also be used, in particular Microfiltration hollow fibers can be used.
  • the inside diameter of the tubular membrane in one Range from 200 ⁇ m to 16 mm.
  • the invention therefore provides the water, which possibly contains germs, by at least a tubular membrane, i.e. a tubular or tubular one trained membrane, in a hydrophilic porous body is guided.
  • the water enters the hydrophilic porous body through the pores of the Membrane across the body.
  • the pores of the membrane are so small are that neither microorganisms nor fragments lysed microorganisms or larger ones, possibly Toxic or allergenic molecules, the membrane can happen.
  • the tubular membrane works as a filter for unwanted ingredients of the water.
  • the one leaving the tubular membrane Water is therefore germ-free. This water gets into the pores of the porous body and gets through there Capillary forces on the entire inner and upper Distributed area of the body.
  • the one to be moistened Air is passed through the porous body and can be there on a comparatively large area absorb germ-free water.
  • the actual membrane area that is to say the area of the tubular membrane, can advantageously be comparatively small, since the exchange area is largely provided by the inner and outer surfaces of the hydrophilic porous body and the filtration performance of the tubular membranes used according to the invention is very high and values of more than 1000 l / m 2 h bar reached.
  • the invention provides a particularly preferred one Embodiment before, the tubular membrane meandering or helical through the porous body to lead. It can of course also be provided several tubular membranes, for example in parallel, through the body, including this passed through the body in any other way can be.
  • the invention provides another preferred Embodiment that the hydrophilic, porous Body is cuboid and accordingly four side faces and two opposite inflow and has outflow surfaces.
  • the cuboid is larger than each is one of its side faces, preferably by a factor of 2 to 50, particularly preferably 10 to 30th
  • the surfaces differentiate between inflow and outflow surface, for example, the outflow area is larger than that The flow area is so that the flow guidance favor.
  • the invention provides another preferred Embodiment before that the longitudinal axis, preferably the longitudinal axes of the at least one tubular membrane, preferably of the several tubular membranes, in at least one plane parallel to the inflow surface of the hydrophilic porous body.
  • the tubular membrane in a or in several planes parallel to the inflow surface of the hydrophilic porous body.
  • the invention also provides for a Humidifier, which has a housing and air supply and air discharge devices, one according to the invention Membrane contactor and possibly devices to move the air, such as pumps or fans, contains.
  • a Humidifier which has a housing and air supply and air discharge devices, one according to the invention Membrane contactor and possibly devices to move the air, such as pumps or fans, contains.
  • the invention also provides that the membrane contactors of the present invention to a modular system consisting of several membrane contactors can be put together, whereby quite a few hydrophilic, porous bodies one or can use several common pipe membranes, that means that this tubular membrane (s) through runs several bodies.
  • the invention also air conditioning systems according to the invention Membrane contactors or humidifiers contain.
  • the invention also relates to a method for aseptic Humidifying air, water in the at least one microporous, water-permeable, for microorganisms and high molecular components impermeable tubular membrane of a humidifier performed the present invention from there the pores of the tubular membrane in the hydrophilic porous Humidifier body respectively Membrane contact arrives, distributed there and from one passed through the hydrophilic porous body Airflow is recorded.
  • the invention provides another preferred Embodiment a method above, wherein the air flow perpendicular to the longitudinal axis of the Tubular membrane in the hydrophilic porous body of the Membrane contactor is initiated.
  • the invention has the advantage that short Diffusion paths for the water perpendicular to the Air flow direction are present and that because the short, very different in flow cross-section shaped sections of the pores through which they flow, which also cross-links with others Have pores, do not form laminar flows. According to the invention, this has the advantage that none Mixing zone after the humidification zone is necessary.
  • the only figure shows: a membrane contactor according to the invention.
  • the figure shows a membrane contactor 1 from a hydrophilic porous cuboid body 3 made of ceramic Material and one running through it ceramic tube membrane 5.
  • the figure shows also the pores 7 of the body 3 and the on and Direction of air flow in the form of large Arrows.
  • the figure shows the course of the tubular membrane 5, designed as a tubular microfiltration membrane is, the three branches 9, 11 and 13 of Pipe membrane 5 with their longitudinal axes parallel to each other and in a parallel to the inflow surface Level are arranged in the center of the body 3. Not are shown or only hinted at arcuate connectors of branches 9, 11 and 13 of the tubular membrane 5. Also not shown the pores of the tubular membrane 5, which have a diameter of 0.1 ⁇ m.
  • the hydrophilic, porous ceramic body 3 comprises two 2.5 cm thick ceramic plates, in their facing base areas semicircular channels are introduced, which serve to accommodate the tubular membrane 5.
  • the two Ceramic plates are made including the tubular membrane 5 placed on top of one another and by means of a suitable one Fixative connected.
  • the educated one Membrane contactor 1 is shown in a not shown Humidifier positioned in the airflow so that this is perpendicular to the face or face 15, one of the two largest areas of the cuboid flows.
  • the tubular membrane 5 runs perpendicular to the air flow direction.
  • Water is brought under pressure into the body 3 through the tubular membrane 5, which is encased outside of the body 3 in a watertight manner, for example by means of a film (small arrow in the figure), and there it passes through the membrane pores into the body 3. Undesired microorganisms, their fragments and high-molecular components are retained in the tubular membrane 5.
  • the water is distributed through the capillary forces over the entire inner and outer surface of the porous structure.
  • the air to be humidified flows perpendicularly to the longitudinal axis of the tubular membrane 5 into the porous hydrophilic body 3 and absorbs the aseptic water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Air Humidification (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Air Conditioning Control Device (AREA)
  • Fuel Cell (AREA)
EP00912455A 1999-03-10 2000-02-11 Luftbefeuchtung Expired - Lifetime EP1080331B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19910441 1999-03-10
DE19910441A DE19910441C1 (de) 1999-03-10 1999-03-10 Luftbefeuchtung
PCT/EP2000/001124 WO2000053977A2 (de) 1999-03-10 2000-02-11 Luftbefeuchtung

Publications (2)

Publication Number Publication Date
EP1080331A2 EP1080331A2 (de) 2001-03-07
EP1080331B1 true EP1080331B1 (de) 2004-02-04

Family

ID=7900311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00912455A Expired - Lifetime EP1080331B1 (de) 1999-03-10 2000-02-11 Luftbefeuchtung

Country Status (9)

Country Link
US (1) US6474628B1 (da)
EP (1) EP1080331B1 (da)
JP (1) JP2002539404A (da)
AT (1) ATE259047T1 (da)
DE (2) DE19910441C1 (da)
DK (1) DK1080331T3 (da)
ES (1) ES2215038T3 (da)
PT (1) PT1080331E (da)
WO (1) WO2000053977A2 (da)

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WO2001041854A2 (en) * 1999-12-10 2001-06-14 Vapotherm, Inc. Apparatus and method for respiratory tract therapy
US7708013B2 (en) * 2000-12-08 2010-05-04 Vapotherm, Inc. Apparatus and method for delivering water vapor to a gas
US20060285091A1 (en) * 2003-07-21 2006-12-21 Parekh Bipin S Lithographic projection apparatus, gas purging method, device manufacturing method and purge gas supply system related application
US7384149B2 (en) 2003-07-21 2008-06-10 Asml Netherlands B.V. Lithographic projection apparatus, gas purging method and device manufacturing method and purge gas supply system
EP1522797A3 (de) * 2003-10-09 2009-02-18 Walter Meier (Klima International) AG Keramikplatte zur Befeuchtung eines Luftstroms
JP4899036B2 (ja) * 2004-10-15 2012-03-21 国立大学法人山口大学 空冷式冷房装置の排熱抑制装置とそれを用いた空冷式冷房システム
US20060147773A1 (en) * 2005-01-06 2006-07-06 Steinshnider Jeremy D Heat and humidity exchanger
DE102005014805B4 (de) * 2005-03-31 2012-12-06 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Bestimmung des Aufwachsens von Umweltkeimen
KR100738106B1 (ko) * 2006-02-09 2007-07-12 삼성전자주식회사 컬러 필터의 제조장치
JP4919708B2 (ja) * 2006-06-15 2012-04-18 恭弘 山下 湿度調整システム
KR101575696B1 (ko) 2008-03-05 2015-12-08 카운실 오브 사이언티픽 엔드 인더스트리얼 리서치 고분자 하이브리드막
DE102008038557A1 (de) * 2008-08-20 2010-02-25 Eads Deutschland Gmbh Vorrichtung zur Luftbefeuchtung
WO2012057695A1 (en) * 2010-10-29 2012-05-03 Jonathan Karlsson Cooling unit
CN102581584A (zh) * 2011-01-06 2012-07-18 鑫昇科技股份有限公司 制造热交换器盘管的方法
DE102011013443A1 (de) * 2011-03-09 2012-09-13 Klingenburg Gmbh Vorrichtung zur Konditionierung eines Luftstroms
JP5751904B2 (ja) * 2011-04-15 2015-07-22 旭化成ホームズ株式会社 蒸散装置及び蒸散装置の製造方法
US9816715B2 (en) * 2012-09-18 2017-11-14 Mitsubishi Electric Corporation Humidifier and air-conditioning apparatus with humidifier
JP6095803B2 (ja) * 2013-12-18 2017-03-15 三菱電機株式会社 親水性コーティング膜及びその製造方法、加湿エレメント並びに加湿装置
DE112016006379B4 (de) * 2016-02-09 2020-07-16 Mitsubishi Electric Corporation Befeuchter und Klimaanlage
US11360064B2 (en) * 2016-03-30 2022-06-14 3M Innovative Properties Company Oxy-pyrohydrolysis system and method for total halogen analysis
EP3436181B1 (en) * 2016-03-31 2023-08-09 Oceaneering International, Inc. Membrane microgravity air conditioner
WO2018126299A1 (en) * 2017-01-09 2018-07-12 Resmed Limited A humidifier for a respiratory therapy device
US12152807B2 (en) * 2018-02-12 2024-11-26 Noritake Co., Limited Liquid atomizing apparatus

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Also Published As

Publication number Publication date
EP1080331A2 (de) 2001-03-07
US6474628B1 (en) 2002-11-05
DE50005175D1 (de) 2004-03-11
DK1080331T3 (da) 2004-06-14
ATE259047T1 (de) 2004-02-15
WO2000053977A2 (de) 2000-09-14
JP2002539404A (ja) 2002-11-19
DE19910441C1 (de) 2000-06-21
ES2215038T3 (es) 2004-10-01
PT1080331E (pt) 2004-06-30
WO2000053977A3 (de) 2000-12-28

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