FI62181C - SHAFT COVER SAETT ATT FRAMSTAELLA DEN - Google Patents

SHAFT COVER SAETT ATT FRAMSTAELLA DEN Download PDF

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Publication number
FI62181C
FI62181C FI761882A FI761882A FI62181C FI 62181 C FI62181 C FI 62181C FI 761882 A FI761882 A FI 761882A FI 761882 A FI761882 A FI 761882A FI 62181 C FI62181 C FI 62181C
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FI
Finland
Prior art keywords
water
pickling
air
heat treatment
sodium hydroxide
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Application number
FI761882A
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Finnish (fi)
Swedish (sv)
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FI62181B (en
FI761882A (en
Inventor
Ove Strindehag
Roy Holmberg
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Svenska Flaektfabriken Ab
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Publication of FI761882A publication Critical patent/FI761882A/fi
Application granted granted Critical
Publication of FI62181B publication Critical patent/FI62181B/en
Publication of FI62181C publication Critical patent/FI62181C/en

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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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • 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
    • F24F3/1411—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 by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • F24F3/1423—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 by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with a moving bed of solid desiccants, e.g. a rotary wheel supporting solid desiccants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
    • F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
    • F28D19/041—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier with axial flow through the intermediate heat-transfer medium
    • F28D19/042—Rotors; Assemblies of heat absorbing masses
    • 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
    • F24F2003/1458—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 using regenerators
    • F24F2003/1464—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 using regenerators using rotating regenerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1032—Desiccant wheel
    • F24F2203/1036—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/104—Heat exchanger wheel

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Laminated Bodies (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Drying Of Gases (AREA)

Description

® SUOMI-FINLAND patenttijulkaisu-patentskrift 62181 © Kv.lk?/lnt.CI.3 P 24 P 3/14 ® ^ @ Patenttihakemus — Patentansöknlng T61882 Ä @ Hakemispäivä — Ansökningsdag 29.06.76 (§) Alkupäivä — Giltighetsdag 29.06.76® SUOMI-FINLAND patent publication-patentskrift 62181 © Kv.lk?/lnt.CI.3 P 24 P 3/14 ® ^ @ Patent application - Patentansöknlng T61882 Ä @ Application date - Ansökningsdag 29.06.76 (§) Start date - Giltighetsdag 29.06.76

© Tullut julkiseksi —Bllvlt offentlig 25.05-TT© Became public —Bllvlt offentlig 25.05-TT

@ Nähtäväksi panon ja kuul.julkaisun pvm.—@ Date of posting and issue of publication—

Ansökan utlagd och utl.skriften publicerad 30.OT.82Ansökan utlagd och utl.skriften publicerad 30.OT.82

Patentti* ja rekisterihallitus © Patentti myönnetty — Patent meddelat 10.11.82Patent * and the National Board of Registers © Patent granted - Patent meddelat 10.11.82

Patent-och registerstyrelsen . , , Q3M§)© Pyydetty etuoikeus — Begärd priorltet 24.11.T5Patents and registration. ,, Q3M§) © Privilege requested - Begärd priorltet 24.11.T5

Ruotsi-Sverige(SE) T51311+8-2 (73) Fläkt Aktiebolag, Sickla Alle 1, Nacka, Ruotsi-Sverige(SE) (T2) Ove Strindehag, Jönköping, Roy Holmberg, Jönköping, Ruotsi-Sverige(SE) (T1^) Oy Kolster Ab (54) limunkostutin ja sen valmistustapa - Luftfuktare och sätt att framställa den Tämän keksinnön kohteena on ilmankostutin, joka käsittää useita, läpivirtauskammioon sijoitettuja veden ja ilman kosketus-kappaleita, jotka koostuvat useista, rinnakkaisista, olennaisesti pystysuorilla poimuilla varustetuista laatoista, joille valutetaan pystysuunnassa virtaavaa vettä ja jotka on erotettu erilleen välikkeillä, jotta ilma voi virrata vaakasuorasti laattojen ^ välistä, jolloin poimujen koverasti kävristettyjen pohjaosien kaarevuussäde on niin pieni, että kapillaarivoima pidättää laatoille syötetyn veden ja pitää sen koossa näissä pohjaosissa.Sweden-Sweden (SE) T51311 + 8-2 (73) Fläkt Aktiebolag, Sickla Alle 1, Nacka, Sweden-Sweden (SE) (T2) Ove Strindehag, Jönköping, Roy Holmberg, Jönköping, Sweden-Sverige (SE) (T1) The present invention relates to an air humidifier comprising a plurality of water and air contact bodies arranged in a flow-through chamber, consisting of a plurality of parallel, substantially vertical corrugated plates, the air humidifier and its method of manufacture. which are drained of vertically flowing water and separated by spacers so that air can flow horizontally between the tiles, the radius of curvature of the concavely curved bottom portions of the corrugations being so small that the capillary force retains and holds the water fed to the tiles at these bottoms.

Tämäntapainen laite on esitetty suomalaisessa patenttihakemuksessa n:o 760590, ja keksinnön tarkoituksena on parantaa laitteen vaikutusastetta.Such a device is disclosed in Finnish patent application No. 760590, and the object of the invention is to improve the efficiency of the device.

Keksinnön mukaiselle ilmankostuttimelle on tunnusomaista se, että ainakin osa laatoista ovat metallia, edullisesti alumiinia tai alumiiniseosta, jonka pinta on muutettu ohueksi hygroskooppiseksi kerrokseksi.The humidifier according to the invention is characterized in that at least some of the tiles are made of metal, preferably aluminum or an aluminum alloy, the surface of which has been transformed into a thin hygroscopic layer.

2 621812 62181

Seuraavassa selitetään keksintöä yksityiskohtaisemmin/ myös patenttivaatimuksissa 2-15 esitetyn keksinnön mukaisen valmistustavan osalta.In the following, the invention will be described in more detail / also with respect to the production method according to the invention set out in claims 2-15.

Ottaen huomioon painon, muovailtavuuden ja kestävyyden nesteissä ja kosteassa ilmassa on alumiini eräs sopiva metalli keksinnön mukaisissa laitteissa ja siksi tässä yhteydessä tarkoitettua pintakäsittelymenetelmää rajoitetaan koskemaan alumiinia tai alumiiniseoksia. Samalla on kuitenkin huomattava, että keksintö ei rajoitu näihin aineisiin, vaan keksinnön ajatus ja seuraavat patenttivaatimukset sisältävät tietenkin jokaisen muun sopivan, ei-hygroskooppisen aineen.In view of the weight, formability and durability in liquids and moist air, aluminum is a suitable metal in the devices according to the invention and therefore the surface treatment method referred to herein is limited to aluminum or aluminum alloys. At the same time, however, it should be noted that the invention is not limited to these substances, but the spirit of the invention and the following claims will, of course, include any other suitable, non-hygroscopic substance.

Hygroskooppinen päällinen laitteen sisältämillä laatoilla ja/tai muilla kosketuspintoja muodostavilla välineillä voidaan keksinnön mukaisesti saada aikaan käsittelemällä näitä peittaus-hauteessa ja sitten lämpökäsittelemällä niin, että muodostuu ohut alumiinioksidikerros. Tätä kerrosta, joka on sinänsä hygroskooppinen, voidaan myös käyttää sitomaan tarvittavat määrät hygroskooppista suolaa. Lisäämällä riittävä määrä hygroskooppista suolaa voidaan saavuttaa haluttu kosteuden siirto.According to the invention, a hygroscopic cover with the plates and / or other means forming the contact surfaces contained in the device can be obtained by treating them in a pickling bath and then by heat treatment to form a thin layer of alumina. This layer, which is in itself hygroscopic, can also be used to bind the required amounts of hygroscopic salt. By adding a sufficient amount of hygroscopic salt, the desired moisture transfer can be achieved.

Peittaushaude, jota. käytetään pintakäsiteItäessä laitteen sisältämiä alumiiniosia, vaihtoehtoisesti koottua laitetta, on 3-10 %:nen, mieluiten 5 %:nen natriumhydroksidiliuos, joka peit-tausprosessin aikana pidetään 70°C lämpötilassa. Heti peittauk-sen jälkeen lämpökäsitellään alumiiniosia tai koko laitetta kosteassa ilmassa, jonka lämpötila on 110°C. Tarpeeksi paksun oksi-dikerroksen saamiseksi on lämpökäsittelyn jatkuttava ainakin 30 minuutin ajan. Tällöin saadaan niin paksu pintakerros, että halutun kosteudensiirron kannalta riittävän suuri määrä hygroskooppista suolaa voidaan sitoa.Pickling bath by. used in the surface treatment The aluminum parts contained in the device, alternatively the assembled device, are a 3-10%, preferably 5% sodium hydroxide solution, which is kept at a temperature of 70 ° C during the pickling process. Immediately after pickling, the aluminum parts or the entire device are heat-treated in humid air at a temperature of 110 ° C. To obtain a sufficiently thick oxide layer, the heat treatment must be continued for at least 30 minutes. This results in a surface layer so thick that a sufficiently large amount of hygroscopic salt can be bound for the desired moisture transfer.

Kun laattojen ulkopuoli hapetetaan peittaamalla ja/tai lämpökäsittelemällä, voi olla edullista tehdä ulkopuoli ennen hapetusta huokoiseksi kemiallisella käsittelyllä, lähinnä hapossa. Huokoisten kerrosten paksuus voidaan mahdollisesti sovittaa halutun kosteudensiirron mukaan ja kerrokset voidaan tehdä niin paksuiksi, että muodostuu läpi ulottuvia kapillaareja. Sopiva keino on lai-mentamaton happohauteen käyttäminen. Tähän tarkoitukseen voidaan käyttää erilaisia happoja ja käsittely voidaan suorittaa useammalla kuin yhdellä hapolla samassa hauteessa tai monissa erilaisissa hauteissa. Esimerkkinä sopivasta happohauteesta voidaan mainita 3 62181 suolahappo, jonka väkevyys on 2-10 %, mieluiten 5 %.When the exterior of the tiles is oxidized by pickling and / or heat treatment, it may be advantageous to make the exterior porous prior to oxidation by chemical treatment, mainly in acid. The thickness of the porous layers can possibly be adapted to the desired moisture transfer and the layers can be made so thick that capillaries extending through are formed. A suitable means is the use of an undiluted acid bath. Different acids can be used for this purpose and the treatment can be performed with more than one acid in the same bath or in many different baths. An example of a suitable acid bath is 3,618,181 hydrochloric acid with a concentration of 2-10%, preferably 5%.

Kun laatat on peitattava, voi olla sopivaa sen jälkeen, kun käsittely peittaushauteessa on suoritettu, nopeasti pysäyttää reaktio suorittamalla jälkikäsittely hapossa, esim. suolahapossa ja vedessä, mainitulla väkevyydellä.When the tiles need to be pickled, it may be appropriate, after treatment in the pickling bath, to quickly stop the reaction by carrying out a post-treatment in acid, e.g. hydrochloric acid and water, at said concentration.

Laattojen ulkopuolen hapetus voi myös tapahtua pelkästään lämpökäsittelyllä. Siitä riippumatta, suoritetaanko tämän käsittely siten kuin on juuri mainittu tai täydentävänä, se voidaan suorittaa korkeassa lämpötilassa kosteassa ilmassa tai vedessä.Tile exterior of the oxidation can also be carried out solely by heat treatment. Whether this treatment is performed as just mentioned or in addition, it can be performed at high temperature in humid air or water.

Kun oksidikerros muodostetaan lämpökäsittelyllä kosteassa ilmassa, annetaan ilmalle mieluiten yli 50°C lämpötila ja yli 10 % suhteellinen kosteus. Kun oksidikerros muodostetaan lämpökäsittelyllä vedessä, annetaan tälle mieluiten yli 35°C lämpötila.When the oxide layer is formed by heat treatment in humid air, the air is preferably given a temperature above 50 ° C and a relative humidity above 10%. When the oxide layer is formed by heat treatment in water, it is preferably given a temperature above 35 ° C.

Alumiinipintojen hapetus voi siis tapahtua sen jälkeen, kun nämä on tehty huokoisiksi mainitulla tavalla. Sitten voi kyllästys tapahtua hygroskooppisella suolalla upottamalla ko. suolan laimeaan liuokseen.Oxidation of the aluminum surfaces can thus take place after these have been made porous in said manner. Impregnation can then take place with hygroscopic salt by immersing the in a dilute solution of salt.

Kun alumiinipintojen hapetus tapahtuu kemiallisella käsittelyllä peittaushauteessa, voi sopiva haude koostua natriumhydrok-sidista tai natriumkarbonaatista, jonka väkevyys on 1-10 %, mieluiten 5 %. Hauteelle voidaan antaa 10-75°C, mieluiten 20-50°C, lämpötila.When the oxidation of the aluminum surfaces takes place by chemical treatment in a pickling bath, a suitable bath may consist of sodium hydroxide or sodium carbonate at a concentration of 1-10%, preferably 5%. The bath can be given a temperature of 10-75 ° C, preferably 20-50 ° C.

Riittävän paksuuden saamiseksi oksidikerrokselle voidaan kemiallista käsittelyä täydentää edellä kuvatulla lämpökäsittelyllä.In order to obtain a sufficient thickness for the oxide layer, the chemical treatment can be supplemented by the heat treatment described above.

Kun alumiinipinnat läpikäyvät peittauksen, voidaan sopivana peittaushauteena käyttää natriumhydroksidia ja vettä, jossa nat-riumhydroksidin väkevyys on 0,2-10 %, mieluiten 0,2-3 %.When the aluminum surfaces undergo pickling, sodium hydroxide and water having a sodium hydroxide concentration of 0.2-10%, preferably 0.2-3%, can be used as a suitable pickling bath.

Tällaisessa laitteessa, jota kokonaisuudessaan tai jonka osia on käsitelty yhden tai useamman, edellä mainitun, tunnusomaisen piirteen mukaisesti, saadaan aikaan karheat kosketuspinnat, jotka voivat ylivoimaisella tavalla ns. imeä nestettä ja kosteutta. sekä myös antaa tätä. Näin itse kosketuspinta suhteessa ilmaan kasvaa ja päälle tuotu neste hajaantuu hyvin pitkälle, so. nestepisaroiden ja muunlaisen nesteen koossapysymiskyky tulee vastustetuksi, jolloin estetään nesteen mukaantempautuminen ilmavirtaan.In such a device, which in its entirety or parts of which have been treated in accordance with one or more of the above-mentioned characteristic features, rough contact surfaces are provided, which can be overwhelmingly so-called absorb liquid and moisture. as well as giving this. In this way, the contact surface itself in relation to the air increases and the introduced liquid disperses very far, i. the ability of liquid droplets and other types of liquid to stick together becomes resisted, thus preventing the liquid from entraining the air stream.

4 521814,5181

Edellä kuvattuja toteutusmuotoja on pidettävä vain ei-ra-joittavina esimerkkeinä, joita voidaan muuntaa ja täydentää, so. soveltaa halutussa yhteydessä, halutulla tavalla keksinnön ajatuksen ja seuraavien patenttivaatimuksien asettamissa puitteissa.The embodiments described above are to be considered as non-limiting examples only, which may be modified and supplemented, i. applied in the desired context, in the desired manner within the scope of the idea of the invention and the following claims.

Claims (15)

1. Luftfuktare bestAende av ett antal i en genomströmnings-kammare anbragta kontaktkroppar för vatten och luft, vilka bestAr av ett antal parallella, med väsentligen vertikala korrugeringar försedda plattor, vilka är begjutna med i vertikal riktning strömmande vatten, och Atskilda med hjälp av distansorgan för att möjliggöra luftens strömning i horisontell riktning mellan plattor-na, varvid krökningsradien hos de konkavt krökta bottenpartierna av dessa verk är sA liten, att det till plattorna tillförda vatt-net av kapillärkraften kvarhAlles och sammanhAlles i dessa botten-partier, kännetecknad därav, att Atminstone en del av plattornaJbestAr av. metall, företrädesvis aluminium eller aluminiumlegering, vars yta är ombildad tili ett tunt hygroskopiskt skikt.1. Humidifiers consisting of a plurality of water and air contact bodies arranged in a flow chamber, consisting of a plurality of parallel, substantially vertical corrugated plates, which are embedded in vertically flowing water and separated by spacers for enabling the flow of air in a horizontal direction between the plates, the radius of curvature of the concave curved bottom portions of these works being so small that the water supplied by the capillary force is retained and held in these bottom portions, characterized in that some of the plates are made of. metal, preferably aluminum or aluminum alloy, the surface of which is reshaped into a thin hygroscopic layer. 2. Sätt att framställa en luftfuktare enligt patentkravet 1, kännetecknat därav, att kontaktytorna pA i och för sig känt sätt oxideras genom betning och/eller värmebehandling.2. A method of producing an humidifier according to claim 1, characterized in that the contact surfaces pA are oxidized by pickling and / or heat treatment in a known manner. 3. Sätt enligt patentkravet 2, kännetecknat därav, att kontaktytorna pA i och för sig känt sätt värmebehandlas efter betning.3. A method according to claim 2, characterized in that the contact surfaces pA are heat treated in a known manner after pickling. 4. Sätt enligt patentkravet 2 eller 3,kännetecknat därav, att betningen pA i och för sig känt sätt utföres i natriumhydroxid och efterföljande värmehehandling sker i fuktig luft eller vatten.4. A method according to claim 2 or 3, characterized in that the pickling pA is carried out in sodium hydroxide per se known method and subsequent heat treatment takes place in moist air or water. 5. Sätt enligt nAgot av patentkraven 2-4, kännetecknat därav, att värmebehandlingen pA i och för sig känt sätt utföres i fuktig luft vid en temperatur av 110°C och under minst 30 minuter eller vatten.5. A method according to any of claims 2-4, characterized in that the heat treatment pA is carried out in humid air known per se in humid air at a temperature of 110 ° C and for at least 30 minutes or water. 6. Sätt enligt patentkravet 4, kännetecknat därav, att som betningsbad pA i och för sig känt sätt användes en lösning av natriumhydroxid och vatten, där natriumhydroxidens koncentration är 3-10 *.6. A method according to claim 4, characterized in that a solution of sodium hydroxide and water, where the concentration of sodium hydroxide is 3-10 *, is used as a pickling bath pA per se known per se. 7. Sätt enligt patentkravet 6, k ännetecknat därav, att lösningen pA i och för sig känt sätt hAlls vid en temperatur av 70°C under betningsprocessen.7. A process according to claim 6, characterized in that the solution pA is kept in a known manner at a temperature of 70 ° C during the pickling process.
FI761882A 1975-11-24 1976-06-29 SHAFT COVER SAETT ATT FRAMSTAELLA DEN FI62181C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7513148A SE450858B (en) 1975-11-24 1975-11-24 WANT TO CONTAIN A REGENERATIVE MOISTURE AND MOVE EXCHANGE OUTSIDE THE OUTSIDE OF ITS NON-HYGROSCOPIC FILES TO A HYGROSCOPIC LAYER
SE7513148 1975-11-24

Publications (3)

Publication Number Publication Date
FI761882A FI761882A (en) 1977-05-25
FI62181B FI62181B (en) 1982-07-30
FI62181C true FI62181C (en) 1982-11-10

Family

ID=20326142

Family Applications (1)

Application Number Title Priority Date Filing Date
FI761882A FI62181C (en) 1975-11-24 1976-06-29 SHAFT COVER SAETT ATT FRAMSTAELLA DEN

Country Status (7)

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DE (1) DE2629134A1 (en)
DK (1) DK156972B (en)
FI (1) FI62181C (en)
FR (1) FR2332499A2 (en)
GB (1) GB1525067A (en)
NO (1) NO149329C (en)
SE (1) SE450858B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4006319C2 (en) * 1989-03-01 2001-07-05 Kiesel Vera Laminar cell for laminar humidifiers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE666674C (en) * 1935-03-17 1938-10-25 Sulzer Akt Ges Geb Device for the treatment of air, in particular for room ventilation
SE307964B (en) * 1964-03-24 1969-01-27 C Munters
US3733791A (en) * 1971-08-13 1973-05-22 Wehr Corp Heat transferer
DE2243408A1 (en) * 1971-09-10 1973-03-15 Luft U Kaeltetechnik Veb K Treatment of aluminium heat exchanger used for cooling moist - air - with alkaline soln to facilitate removal of condensate
US3846182A (en) * 1973-07-05 1974-11-05 Ford Motor Co Method of forming a hydrophilic coating over an aluminum surface
FI58559C (en) * 1975-01-30 1981-02-10 Svenska Flaektfabriken Ab SAETT ATT FRAMSTAELLA EN REGENERATIV FUKT- OCH VAERMEVAEXLARE

Also Published As

Publication number Publication date
DE2629134C2 (en) 1991-11-14
SE7513148L (en) 1977-05-25
NO149329B (en) 1983-12-19
NO149329C (en) 1984-03-28
DE2629134A1 (en) 1977-06-02
FI62181B (en) 1982-07-30
FR2332499B2 (en) 1982-06-18
FR2332499A2 (en) 1977-06-17
FI761882A (en) 1977-05-25
DK288576A (en) 1977-05-25
NO762225L (en) 1977-05-25
GB1525067A (en) 1978-09-20
SE450858B (en) 1987-08-03
DK156972B (en) 1989-10-23

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