SE531981C2 - A method for reducing the moisture content of air in a confined space - Google Patents

A method for reducing the moisture content of air in a confined space

Info

Publication number
SE531981C2
SE531981C2 SE0601021A SE0601021A SE531981C2 SE 531981 C2 SE531981 C2 SE 531981C2 SE 0601021 A SE0601021 A SE 0601021A SE 0601021 A SE0601021 A SE 0601021A SE 531981 C2 SE531981 C2 SE 531981C2
Authority
SE
Sweden
Prior art keywords
air
delimited space
moisture content
space
delimited
Prior art date
Application number
SE0601021A
Other languages
Swedish (sv)
Other versions
SE0601021L (en
Inventor
Wilhelm Von Doebeln
Original Assignee
Munters Europ Ab
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 Munters Europ Ab filed Critical Munters Europ Ab
Priority to SE0601021A priority Critical patent/SE531981C2/en
Priority to EP07445020.6A priority patent/EP1855063B1/en
Priority to JP2007122042A priority patent/JP5416343B2/en
Priority to US11/797,755 priority patent/US20080245080A1/en
Priority to CN2007101024323A priority patent/CN101105312B/en
Publication of SE0601021L publication Critical patent/SE0601021L/en
Publication of SE531981C2 publication Critical patent/SE531981C2/en

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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D13/00—Stationary devices, e.g. cold-rooms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate

Description

l5 20 25 30 mi ri n: wf üfi a-â* luft krävs emellertid energi, och med anledning av ökade ener- gikostnader eftersträvas lösningar för att minska den energi, som krävs för att torka den luft som tillförs luftslussen samt att öka torrhetsgraden hos luften som tillförs kyllagerrummet. l5 20 25 30 mi ri n: wf ü fi a-â * air, however, requires energy, and due to increased energy costs, solutions are sought to reduce the energy required to dry the air supplied to the airlock and to increase the degree of dryness of the air supplied to the cold storage room.

I anslutning till t ex rummet för tillverkning av litiumbatte- rier uppstår inte problemet med bildandet av frost och is, men uppvisar fortfarande problemet med höga energikostnader, och även strävan att öka graden av torrheten hos luften som tillförs rummet.In connection with, for example, the room for the manufacture of lithium batteries, the problem of the formation of frost and ice does not arise, but still shows the problem of high energy costs, and also the effort to increase the degree of dryness of the air supplied to the room.

Syftet med uppfinningen är sålunda att erhålla ett mera effek- tivt sätt att åstadkomma torkad luft till kyllagerrummet till lägre kostnader samt med högre torrhetsgrad. Härigenom möjlig- görs användning av en avfuktare med mindre kapacitet och som således är billigare.The object of the invention is thus to obtain a more efficient way of producing dried air to the cold storage room at lower costs and with a higher degree of dryness. This makes it possible to use a dehumidifier with a smaller capacity and which is thus cheaper.

Detta syfte uppnås enligt uppfinningen med ett förfarande för att minska luftfuktigheten hos ett första avgränsat utrymme anordnat skilt fràn minst ett andra avgränsat utrymme medelst skiljeorgan, varvid luften hos det första avgränsade utrymmet har lägre fukthalt än den hos det minst ett andra avgränsat utrymme, varvid minskningen av luftens fukthalt åstadkoms medelst minst en avfuktare, och det för uppfinningen utmärkan- de är att man tar luft med högre fukthalt än hos luften i det första avgränsade utrymmet, att man torkar luften medelst en minst en avfuktare, och att man matar den avfuktade luften helt eller delvis till det första avgränsade utrymmet.This object is achieved according to the invention with a method for reducing the humidity of a first delimited space arranged separately from at least a second delimited space by means of separating means, the air of the first delimited space having a lower moisture content than that of the at least one second delimited space, wherein the reduction of the air moisture content is achieved by means of at least one dehumidifier, and it is characteristic of the invention that air with a higher moisture content than in the air in the first delimited space is taken, that the air is dried by means of at least one dehumidifier, and that the dehumidified air is fed wholly or partly to the first delimited space.

Kortfattad beskrivning av uppfinningen Ett icke begränsande exempel på föreliggande uppfinning kommer att beskrivas nedan under hänvisning till bifogade ritning, på vilken Figur 1 är en schematisk vy av ett känt arrangemang hos ett kyllagerrum med en luftsluss, till vilken torkad luft 10 15 20 25 30 “ i L l E? Fifa u! matas, Figur 2 är en schematisk vy av den mest allmänna formen hos förfarandet enligt uppfinningen tillämpat vid minst ett avgränsat utrymme i serie med ett eller flera avgränsade ut- rymmen, och Figur 3 visar ett kyllagerrum med en luftsluss uppdelad i två avdelningar, varvid den torkade luften tillförs till avdelningen hos luftslussen belägen närmast det rum som skall innehålla luft med låg fukthalt.Brief Description of the Invention A non-limiting example of the present invention will be described below with reference to the accompanying drawing, in which Figure 1 is a schematic view of a known arrangement of a cold storage room with an air lock, to which dried air. i L l E? Fifa u! Figure 2 is a schematic view of the most general form of the method according to the invention applied to at least one delimited space in series with one or more delimited spaces, and Figure 3 shows a cold storage room with an air lock divided into two compartments, wherein The dried air is supplied to the compartment of the airlock located closest to the room which is to contain air with a low moisture content.

Beskrivning av föredragna utföringsformer Figur l visar en kyllagerrum vars ingång är försedd med en luftsluss enligt den kända tekniken. Luft från luftslussen matas till en avfuktare, vilken luft torkas av avfuktaren, och den torkade luften matas tillbaka till luftslussen. I ett typiskt fall har luften i kyllagerrummet en fukthalt av ca 0,5 gram vatten per kg luft vid -25°C.Description of preferred embodiments Figure 1 shows a cold storage room whose entrance is provided with an air lock according to the prior art. Air from the airlock is fed to a dehumidifier, which air is dried by the dehumidifier, and the dried air is fed back to the airlock. In a typical case, the air in the cold storage room has a moisture content of about 0.5 grams of water per kg of air at -25 ° C.

Figur 2 är en schematisk vy av den mest allmänna formen hos förfarandet enligt uppfinningen tillämpat vid minst ett av- gränsat utrymme i en serie av en eller flera avgränsade utrym- men. Såsom framgår av denna figur matas luft med högre fukt- halt från ett första avgränsat utrymme till avfuktaren, och den torkade luften matas till ett andra avgränsat utrymme innehållande med luft med lägre fukthalt än fukthalten hos luften i det första utrymmet. Företrädesvis är det första avgränsade utrymmet skilt från det andra avgränsade utrymmet medelst någon typ av skiljeorgan, t ex ett flertal elastiska remsor placerade intill varandra eller minst en svängdörr.Figure 2 is a schematic view of the most general form of the method according to the invention applied to at least one delimited space in a series of one or more delimited spaces. As shown in this figure, air with a higher moisture content is fed from a first delimited space to the dehumidifier, and the dried air is fed to a second delimited space containing air with a lower moisture content than the moisture content of the air in the first space. Preferably, the first delimited space is separated from the second delimited space by means of some type of separating means, for example a plurality of elastic strips placed next to each other or at least one revolving door.

En föredragen utföringsform för utövande av förfarandet enligt uppfinningen visas i Figur 3. Ingàngen till kyllagerrummet är försedd med en luftsluss. Luftslussen är uppdelad i minst två avdelningar medelst skiljeorgan, företrädesvis av den ovan nämnda typen. Luft från avdelningen hos luftslussen med högst fukthalt matas till en avfuktare och torkas, och matas där- 10 15 20 25 efter till avdelningen hos luftslussen belägen närmast in- gången till kyllagerrummet. I ett typiskt exempel har luften hos avdelningen med högst luftfuktighet en vattenhalt av 2 gram per kg luft. Denna luft torkas till en vattenhalt av 0,2 gram per kg luft, som resulterar i en vattenhalt hos luften i kyllagerrummet av mindre än 2 gram vatten per kg luft, före- trädesvis 0,5 gram vatten per kg luft, vid en temperatur av -25°C.A preferred embodiment for carrying out the method according to the invention is shown in Figure 3. The entrance to the cold storage room is provided with an air lock. The air lock is divided into at least two compartments by means of separating means, preferably of the above-mentioned type. Air from the compartment of the airlock with the highest moisture content is fed to a dehumidifier and dried, and then fed to the compartment of the airlock located closest to the entrance to the cold storage room. In a typical example, the air in the compartment with the highest humidity has a water content of 2 grams per kg of air. This air is dried to a water content of 0.2 grams per kg of air, which results in a water content of the air in the cold storage room of less than 2 grams of water per kg of air, preferably 0.5 grams of water per kg of air, at a temperature of -25 ° C.

Förfarandet enligt uppfinningen utmärker sig således av att man tar luft med högre fukthalt än fukthalten hos luften i ett första avgränsat utrymme, att man torkar luften medelst minst en avfuktare, och att man matar den avfuktade luften helt eller delvis till det första avgränsade utrymmet.The method according to the invention is thus characterized in that air with a higher moisture content than the moisture content of the air in a first delimited space is taken, that the air is dried by means of at least one dehumidifier, and that the dehumidified air is fed in whole or in part to the first delimited space.

En annan utföringsform av förfarandet enligt uppfinningen ut- märker sig av att man helt eller delvis tar luften med högre fukthalt från minst ett andra avgränsat utrymme, avfuktar luften, och att man matar densamma helt eller delvis till det första avgränsade utrymmet. Ännu en utföringsform av förfarandet enligt uppfinningen ut- märker sig av att man uppdelar det minst ett andra avgränsade utrymmet i två avdelningar medelst skiljeorganen, att man helt eller delvis tar luft med högre fukthalt från avdelningen hos det andra avgränsade utrymmet beläget längst bort från det första avgränsade utrymmet, att man avfuktar denna luft, och att man matar den avfuktade luften helt eller delvis till av- delningen av det andra avgränsade utrymmet beläget närmast det första avgränsade utrymmet.Another embodiment of the method according to the invention is characterized in that the air with a higher moisture content is taken in whole or in part from at least a second delimited space, the air is dehumidified, and that it is fed in whole or in part to the first delimited space. Yet another embodiment of the method according to the invention is characterized in that the at least one second delimited space is divided into two compartments by means of the separating means, that air with a higher moisture content is taken in whole or in part from the compartment of the second delimited space located furthest from the first delimited space, that this air is dehumidified, and that the dehumidified air is fed in whole or in part to the compartment of the second delimited space located closest to the first delimited space.

Claims (4)

lO l5 20 25 30 PATENTKRÄVlO l5 20 25 30 PATENT REQUIREMENTS 1. l. Förfarande för minskning av fukthalten hos luften i ett första avgränsat utrymme som står i förbindelse med minst ett andra avgränsat utrymme, varvid utrymmena är skiljda åt medelst skiljeorgan, varjämte luften hos det första avgränsade utrymmet har lägre fukthalt än fukthalten hos luften i det minst ett andra avgränsade utrymmet, och att minskningen av luftens fukthalt åstadkommes medelst minst en avfuktare, kånnetecknat av - att man uppdelar det minst ett andra avgränsade utrymmet i två i serie med varandra anordnade avdelningar medelst skiljeorgan, - att man helt eller delvis tar luft med högre luftfuktighet, än luftfuktigheten hos luften i det första avgränsade utrymmet, från avdelningen av det andra avgränsade utrymmet belägen längst bort från det första avgränsade utrymmet, - att man avfuktar denna luft medelst den minst en avfuktaren, och - att man matar den avfuktade luften helt eller delvis till avdelningen hos det andra avgränsade utrymmet belägen närmast det första avgränsade utrymmet.A method for reducing the moisture content of the air in a first delimited space which communicates with at least a second delimited space, the spaces being separated by means of separating means, and the air of the first delimited space has a lower moisture content than the moisture content of the air in the at least one second delimited space, and that the reduction of the moisture content of the air is effected by means of at least one dehumidifier, characterized by - that the at least one second delimited space is divided into two compartments arranged in series with each other by means of separating means, - that air is taken in whole or in part with a higher humidity than the humidity of the air in the first delimited space, from the compartment of the second delimited space located furthest from the first delimited space, - that this air is dehumidified by means of at least one dehumidifier, and - that the dehumidified air is fed wholly or partly to the compartment of the second delimited space located closest to the first avg cleaned the space. 2. Förfarande enligt något av kraven 1, kännetecknat av - att det minst ett andra avgränsade utrymmet är en luftsluss via vilken åtkomst fås till det första avgränsade utrymmet.Method according to one of Claims 1, characterized in that - the at least one second delimited space is an air lock via which access to the first delimited space is gained. 3. Förfarande enligt krav l, kännetecknat av det första av- gränsade utrymmet är ett kyllagerrum.Method according to claim 1, characterized in that the first delimited space is a cold storage room. 4. Förfarande enligt krav l, kännetecknat av att det första avgränsade utrymmet är ett utrymme med en fukthalt hos luften av mindre än 2 gram vatten per kg luft.Method according to claim 1, characterized in that the first delimited space is a space with a moisture content of the air of less than 2 grams of water per kg of air.
SE0601021A 2006-05-08 2006-05-08 A method for reducing the moisture content of air in a confined space SE531981C2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE0601021A SE531981C2 (en) 2006-05-08 2006-05-08 A method for reducing the moisture content of air in a confined space
EP07445020.6A EP1855063B1 (en) 2006-05-08 2007-05-04 Method for reducing the moisture content of air of a defined space
JP2007122042A JP5416343B2 (en) 2006-05-08 2007-05-07 Method for reducing the amount of moisture in the air in a specific space
US11/797,755 US20080245080A1 (en) 2006-05-08 2007-05-07 Method for reducing the moisture content of air of a defined space
CN2007101024323A CN101105312B (en) 2006-05-08 2007-05-08 Method for reducing the moisture content of air of a defined space

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0601021A SE531981C2 (en) 2006-05-08 2006-05-08 A method for reducing the moisture content of air in a confined space

Publications (2)

Publication Number Publication Date
SE0601021L SE0601021L (en) 2007-11-09
SE531981C2 true SE531981C2 (en) 2009-09-22

Family

ID=38318664

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0601021A SE531981C2 (en) 2006-05-08 2006-05-08 A method for reducing the moisture content of air in a confined space

Country Status (5)

Country Link
US (1) US20080245080A1 (en)
EP (1) EP1855063B1 (en)
JP (1) JP5416343B2 (en)
CN (1) CN101105312B (en)
SE (1) SE531981C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5107379B2 (en) * 2010-03-15 2012-12-26 新日本空調株式会社 Control method and dehumidification system of dew point temperature in low dew point chamber
CN107924816B (en) 2015-06-26 2021-08-31 东京毅力科创株式会社 Vapor etching with controlled etch selectivity of silicon-containing antireflective coatings or silicon oxynitride relative to different films or masks
CN111721065A (en) * 2020-06-30 2020-09-29 合肥华凌股份有限公司 Humidifying storage assembly and refrigeration equipment with same

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US1943613A (en) * 1931-11-02 1934-01-16 Chester F Hockley Air conditioning system
GB523779A (en) * 1938-12-15 1940-07-23 John Allan Elwin Seabrook Improvements relating to the storage of foodstuffs
GB1267969A (en) * 1969-06-13 1972-03-22 Ifc Corp Quick freezing of liquids for dehydration
US4289190A (en) * 1979-01-26 1981-09-15 Dynaforce Corporation Plastic strip closures and methods of protecting the same
CA1153902A (en) * 1982-07-26 1983-09-20 Allan E. Watt Air cooled ice rink construction
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JP2000234847A (en) * 1999-02-15 2000-08-29 Sanyo Electric Co Ltd Prefabricated low-temperature storage chamber
JP3034867B1 (en) * 1999-05-25 2000-04-17 株式会社カンキョー Dehumidifier
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JP4367888B2 (en) * 2001-03-30 2009-11-18 株式会社前川製作所 Low temperature warehouse handling room condensation control device
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JP2004299800A (en) * 2003-03-28 2004-10-28 Jfe Steel Kk Low-temperature warehouse, and method for shipping material stored therein

Also Published As

Publication number Publication date
CN101105312B (en) 2010-06-02
SE0601021L (en) 2007-11-09
EP1855063B1 (en) 2016-10-19
JP2007303810A (en) 2007-11-22
US20080245080A1 (en) 2008-10-09
EP1855063A2 (en) 2007-11-14
EP1855063A3 (en) 2009-04-22
JP5416343B2 (en) 2014-02-12
CN101105312A (en) 2008-01-16

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