WO2010020220A1 - Dispositif pour humidifier l'air - Google Patents

Dispositif pour humidifier l'air Download PDF

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Publication number
WO2010020220A1
WO2010020220A1 PCT/DE2009/001146 DE2009001146W WO2010020220A1 WO 2010020220 A1 WO2010020220 A1 WO 2010020220A1 DE 2009001146 W DE2009001146 W DE 2009001146W WO 2010020220 A1 WO2010020220 A1 WO 2010020220A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
air
membrane
humidification
humidifying
Prior art date
Application number
PCT/DE2009/001146
Other languages
German (de)
English (en)
Inventor
Walter Jehle
Robert Schreiber
Original Assignee
Eads Deutschland 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 Eads Deutschland Gmbh filed Critical Eads Deutschland Gmbh
Publication of WO2010020220A1 publication Critical patent/WO2010020220A1/fr

Links

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/1435—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification comprising semi-permeable membrane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/54—Free-cooling systems

Definitions

  • the invention relates to a device for humidification.
  • Such devices have a high energy consumption and there is a risk of condensation in unfavorable installation and cool environment. With a high calcium content in the water, there is also the risk of limescale, which increases the maintenance.
  • respirable aerosols can cause health problems and eventually there is a risk of scalding from the exiting vapor.
  • Humidifiers based on the evaporation principle distribute the water over as large a surface as possible, for example through filter mats or rotating louvers, and blow air over them. Such devices have only a relatively low humidification performance and a controlled humidification is difficult. Furthermore, these cause a lowering of the air temperature by adiabatic cooling and it is a regular cleaning or addition of disinfectant necessary to prevent bacterial contamination.
  • Zero-duty humidifiers use ultrasonic or pressure pumps and fine nozzles to atomize water into tiny droplets. Ultrasound kills germs in correctly designed devices by cavitation, however, the exiting mist can not be considered sterile, since at high contamination of the water with germs, so in particular irregular cleaning, not detected by ultrasound water particles can escape with germs.
  • the object of the invention is therefore to provide a device for humidification, which avoids the disadvantages mentioned above and to provide a well-regulated humidification with great humidification, without adiabatic cooling, which also avoids microbial contamination and the risk of respirable aerosols in the humidified air.
  • the separation membrane is a cation exchange membrane.
  • the separation membrane consists essentially of polyethylene terephthalate (PET). This has the advantage that it can be used very stable and very thin films.
  • the separating membrane can also consist of a hydrophobic material, in particular polypropylene (PP) or polytetrafluoroethylene (PTFE).
  • PP polypropylene
  • PTFE polytetrafluoroethylene
  • the effective membrane area of the separating membrane is variable. This can preferably be done by adapting the design of the membrane module to the desired humidifier performance.
  • the humidifying power can also be regulated by changing the water temperature. The higher the water temperature, the higher the partial pressure of the water (physical effect). Thus, the partial pressure gradient increases, the partial pressure gradient corresponds to the driving force.
  • the water transport is proportional to the driving force.
  • the temperature increases with the diffusion coefficient, which additionally increases the transport.
  • the temperature is about 10 - 60 0 C, preferably 15 - 35 ° C. The water temperature used depends on the speed and the mass of the air flowed through.
  • FIG. 1 shows a schematic view of an air humidifying device
  • FIG. 2 is a schematic sectional view of a membrane module as a core component of the air humidification device according to FIG. 1;
  • FIG. 2 is a schematic sectional view of a membrane module as a core component of the air humidification device according to FIG. 1;
  • Fig. 3 is a schematic diagram for the distribution of the relative
  • Fig. 1 is a schematic representation of an air humidifying device 10 is shown, which consists of an inlet 12 for the air to be humidified, a fan to supply this air to a membrane module 16 and an outlet nozzle 18 for the humidified air. Shown in dashed lines is a water circuit 20 with a membrane module inlet 22, a membrane module outlet 24, a water pump 26 and a water heater 28. Water pump 26 and water heater 28 are arranged in a thermostat module 30. About a non-illustrated control unit, which measures the air flow through the membrane module 16, preferably its humidity, the water flow through the conduit system 20 and the temperature of the water, the fan 14, the water pump 26 and the water heater 28 is controlled.
  • FIG. 1 is a schematic representation of an air humidifying device 10 is shown, which consists of an inlet 12 for the air to be humidified, a fan to supply this air to a membrane module 16 and an outlet nozzle 18 for the humidified air. Shown in dashed lines is a water circuit 20 with a membrane module inlet 22,
  • FIG. 2 is a schematic sectional view through the membrane module 16 in which regions 32 through which air flows are separated from the regions 34 through which water flows by separating membranes.
  • the air to be humidified enters the membrane module 16 at 36 and out again at 38, the air flowing along the region 32 delimited by the separation membrane 40, while on the other side the separation membrane 40 enters via the inlet 22 and via the outlet 24 flowing countercurrently, preferably heated water flows past, wherein diffused due to the different water vapor partial pressure between the regions 32 and 34 water through the separation membrane 40 into the air-flow area 32 and thereby increases the humidity of the air.
  • Fig. 3 is a schematic diagram showing the distribution of the relative humidity between the outlet nozzle 18 and a maximum distance of 1.3 m (diameter 6 cm).

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)

Abstract

La présente invention concerne un dispositif pour humidifier l'air comprenant au moins une membrane de séparation (40) qui sépare une première zone (34) parcourue par de l'eau d'une deuxième zone (32) parcourue par de l'air à humidifier. L'invention permet une humidification avec un rendement important sans présenter l'inconvénient du refroidissement adiabatique qui pourrait s'en accompagner.
PCT/DE2009/001146 2008-08-20 2009-08-08 Dispositif pour humidifier l'air WO2010020220A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008038557A DE102008038557A1 (de) 2008-08-20 2008-08-20 Vorrichtung zur Luftbefeuchtung
DE102008038557.3 2008-08-20

Publications (1)

Publication Number Publication Date
WO2010020220A1 true WO2010020220A1 (fr) 2010-02-25

Family

ID=41461045

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2009/001146 WO2010020220A1 (fr) 2008-08-20 2009-08-08 Dispositif pour humidifier l'air

Country Status (2)

Country Link
DE (1) DE102008038557A1 (fr)
WO (1) WO2010020220A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012008197B4 (de) 2012-04-26 2018-06-14 Al-Ko Therm Gmbh Austauschsystem zum Austausch von Stoffen zwischen zwei Fluiden
CH711934A2 (de) 2015-12-18 2017-06-30 Condair Group Ag Verfahren und Vorrichtung zur Luftbefeuchtung mittels einer hydrophoben, mikroporösen Membran.
DE102016109365B4 (de) * 2016-05-20 2022-03-24 Al-Ko Therm Gmbh Klima- und/oder Lüftungsanlage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5290403A (en) * 1987-03-17 1994-03-01 Saeaesk Aapo Liquid evaporating apparatus
US5595690A (en) * 1995-12-11 1997-01-21 Hamilton Standard Method for improving water transport and reducing shrinkage stress in membrane humidifying devices and membrane humidifying devices
EP1291585A2 (fr) * 2001-07-17 2003-03-12 Japan Gore-Tex, Inc. Dispositifs de séparation gaz/liquide
US20050252982A1 (en) * 2004-05-17 2005-11-17 Yasuhiro Akita Humidifier

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19910441C1 (de) * 1999-03-10 2000-06-21 Fraunhofer Ges Forschung Luftbefeuchtung
US3776530A (en) * 1971-03-25 1973-12-04 Lau Inc Electrodialytic demineralizing unit for humidification purposes
JPS61240047A (ja) * 1985-04-15 1986-10-25 Mitsubishi Electric Corp 加湿素子
JPH0861718A (ja) * 1994-08-29 1996-03-08 Orion Mach Co Ltd 加湿装置
JPH09264573A (ja) * 1996-03-28 1997-10-07 Sanyo Electric Co Ltd 加湿器
US8470071B2 (en) * 2006-09-25 2013-06-25 Dais Analytic Corporation Enhanced HVAC system and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5290403A (en) * 1987-03-17 1994-03-01 Saeaesk Aapo Liquid evaporating apparatus
US5595690A (en) * 1995-12-11 1997-01-21 Hamilton Standard Method for improving water transport and reducing shrinkage stress in membrane humidifying devices and membrane humidifying devices
EP1291585A2 (fr) * 2001-07-17 2003-03-12 Japan Gore-Tex, Inc. Dispositifs de séparation gaz/liquide
US20050252982A1 (en) * 2004-05-17 2005-11-17 Yasuhiro Akita Humidifier

Also Published As

Publication number Publication date
DE102008038557A1 (de) 2010-02-25

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