NO329410B1 - Apparel by dress element - Google Patents

Apparel by dress element Download PDF

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Publication number
NO329410B1
NO329410B1 NO20064338A NO20064338A NO329410B1 NO 329410 B1 NO329410 B1 NO 329410B1 NO 20064338 A NO20064338 A NO 20064338A NO 20064338 A NO20064338 A NO 20064338A NO 329410 B1 NO329410 B1 NO 329410B1
Authority
NO
Norway
Prior art keywords
cooling
air
cooling element
cooling fins
inlet end
Prior art date
Application number
NO20064338A
Other languages
Norwegian (no)
Other versions
NO20064338L (en
Inventor
Jan Ragnar Stokke
Original Assignee
Spot Cooler Systems As
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 Spot Cooler Systems As filed Critical Spot Cooler Systems As
Priority to NO20064338A priority Critical patent/NO329410B1/en
Priority to PCT/NO2007/000328 priority patent/WO2008039074A1/en
Priority to US12/442,586 priority patent/US20090277621A1/en
Priority to CNA2007800359629A priority patent/CN101553700A/en
Priority to JP2009530303A priority patent/JP2010505085A/en
Priority to RU2009110950/06A priority patent/RU2473021C2/en
Priority to EP07834745.7A priority patent/EP2069697A4/en
Publication of NO20064338L publication Critical patent/NO20064338L/en
Publication of NO329410B1 publication Critical patent/NO329410B1/en
Priority to US13/644,678 priority patent/US20130098581A1/en

Links

Classifications

    • 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
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0475—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits having a single U-bend
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/04—Assemblies of fins having different features, e.g. with different fin densities

Abstract

Anordning ved kjøleelement, hvor et antall plateformete kjølelameller 16, 17 er anbragt opptil hverandre slik at det avgrenses gjennomløpsspalter for luft som skal kjøles. Det er anordnet vekselvis kjølelameller 16 som strekker seg fram til innløpskanten for luft som skal kjøles og avkortete kjølelameller 17 som strekker seg til en posisjon innenfor innløpskanten.Device for cooling element, where a number of plate-shaped cooling slats 16, 17 are arranged next to each other so that passage slots for air to be cooled are delimited. Arranged cooling vanes 16 extending to the inlet edge for air to be cooled and shortened cooling vanes 17 extending to a position within the inlet edge.

Description

Anordning ved kjøleelement Device at cooling element

Oppfinnelsen gjelder en anordning ved et kjøleelement som angitt i innledningen til patentkrav 1. The invention relates to a device for a cooling element as stated in the introduction to patent claim 1.

Bakgrunn Background

Ved oppbygging av lamellkjølere, det vil si kjølelement med platelameller som anordnes i en luftstrøm som skal kjøles, er det viktig å oppnå god utveksling mellom luft og metall. Avstanden mellom kjølelamellene er blitt tilpasset produksjonsteknikken, vanligvis uten full optimalisering i forhold til størrelsen. When constructing lamella coolers, i.e. cooling elements with plate lamellas which are arranged in an air stream to be cooled, it is important to achieve good exchange between air and metal. The distance between the cooling fins has been adapted to the production technique, usually without full optimization in relation to the size.

I forskjellige sammenhenger er plassen begrenset, slik at en ønsker en å gjøre kjølelementene så små som mulig. In various contexts, space is limited, so you want to make the cooling elements as small as possible.

Fra US-patentskrift 3,267,692 er det kjent en lamellkjøler hvor luft skal blåses igjennom. Denne har til oppgave å redusere avisingsfrekvensen. Den er uegnet for bruk ved kjøleoppgaver hvor gravitasjon sørger for at kald luft faller ned av seg selv. From US patent 3,267,692, a lamella cooler is known where air must be blown through. This has the task of reducing the frequency of de-icing. It is unsuitable for use in cooling tasks where gravity ensures that cold air falls down by itself.

Formål Purpose

Hovedformålet med oppfinnelsen er derfor å skape et kjøleelement som er innrettet for bruk ved gravitasjonsstyrt luftgjennomgang og som har større effektivitet enn tilsvarende kjente kjøleelement. The main purpose of the invention is therefore to create a cooling element which is designed for use with gravity-controlled air passage and which has greater efficiency than corresponding known cooling elements.

Oppfinnelsen The invention

Oppfinnelsen er angitt i patentkrav 1. Den gjelder altså en anordning hvor kjøleelementet er innrettet for bruk ved gravitasjonsstyrt luftgjennomgang med oppovervendt innløpsende og nedovervendt utløpsende, og hvor det er anordnet vekselvis kjølelameller som strekker seg opp til innløpsenden og kjølelameller som strekker seg opp til en posisjon under innløpsenden, slik at luft faller fra bredere spalter til smalere spalter og gjennom disse. The invention is stated in patent claim 1. It therefore applies to a device where the cooling element is designed for use in gravity-controlled air passage with an upward-facing inlet end and a downward-facing outlet end, and where alternate cooling lamellas extending up to the inlet end and cooling lamellas extending up to a position are arranged below the inlet end, so that air falls from wider slits to narrower slits and through these.

Med denne utformingen er det blitt mulig å oppnå en vesentlig økning i kuldeoverføringen og senkning av temperaturen på luft som strømmer gjennom et slikt kjøleelement. Denne økningen antas å ha sin årsak i at luftmolekylene vil få økt kollisjon med kjølelamellene gjennom den trinnvise avsnevringen av bredden på luftspaltene. With this design, it has become possible to achieve a significant increase in cold transfer and lowering of the temperature of air flowing through such a cooling element. This increase is believed to be due to the fact that the air molecules will have an increased collision with the cooling fins through the gradual narrowing of the width of the air gaps.

I patentkrav 2 - 4 er det angitt særlig gunstige detaljer ved oppfinnelsen. Flere detaljer om dette vil gå fram av den etterfølgende eksempelskrivelsen. In patent claims 2 - 4, particularly favorable details of the invention are stated. More details about this will emerge from the following sample writing.

Eksempel Example

Oppfinnelsen er nedenfor beskrevet nærmere under henvisning til tegningene, hvor The invention is described below in more detail with reference to the drawings, where

Figur 1 viser et sideriss av en utførelsesform av oppfinnelsen, med et kjøleelement med lameller på kjølerør, mens Figure 1 shows a side view of an embodiment of the invention, with a cooling element with lamellae on cooling pipes, while

Figur 2 viser et forstørret utsnitt av lamellene i Figur 1, Figure 2 shows an enlarged section of the slats in Figure 1,

I Figur 1 er det vist et kjølelement 11 som er bygd opp mellom to endebraketter 12 og 13. Mellom endebrakettene 12 og 13 strekker det seg i eksemplet to par U-formete kjølerør 14 og 15 som blir tilkoblet for gjennomstrømning av kuldemedium. Kjølerørene 14 og 15 bærer ei rekke kjølelameller 16 og 17, som er anbragt vekselvis. Kjølelamellene 16 strekker seg i full høyde av kjøleelementet 11, og er festet til begge de U-formete kjølerørene 14,15, mens de øvrige kjølelamellene 17 har halvparten så stor utstrekning i høyden som kjølelamellene 16 og er festet til det nedre U-formete kjølerøret 14. In Figure 1, a cooling element 11 is shown which is built up between two end brackets 12 and 13. Between the end brackets 12 and 13, in the example, two pairs of U-shaped cooling pipes 14 and 15 extend, which are connected for the flow of coolant. The cooling pipes 14 and 15 carry a number of cooling fins 16 and 17, which are placed alternately. The cooling fins 16 extend to the full height of the cooling element 11, and are attached to both U-shaped cooling pipes 14,15, while the other cooling fins 17 extend half as far in height as the cooling fins 16 and are attached to the lower U-shaped cooling pipe 14.

Avstanden mellom kjølelamellene kan være 9 millimeter i den øvre delen og 2,5 - 3 millimeter i den nedre delen. Dette betyr en vesentlig reduksjon av lamellavstanden i forhold til tilsvarende kjente kjøleelement. Samtidig betyr det en økning i effektiviteten i varmeoverføringen. Grunnen til denne effektivitetsøkningen er ikke klarlagt, men det antas at den kan forklares ved at den trange lamellavstanden fører til økt molekylbevegelse og dermed til flere kollisjoner mellom luftmolekylene. The distance between the cooling fins can be 9 millimeters in the upper part and 2.5 - 3 millimeters in the lower part. This means a significant reduction of the lamella distance compared to corresponding known cooling elements. At the same time, it means an increase in the efficiency of heat transfer. The reason for this increase in efficiency is not clear, but it is assumed that it can be explained by the fact that the narrow lamella spacing leads to increased molecular movement and thus to more collisions between the air molecules.

Luftmolekyler som blir avkjølt ved overgangen fra en vid til en trangere del av lamellspaltene, antas å få økt spesifikk tyngde og dermed falle hurtigere og samtidig oscillere saktere og skape færre kollisjoner med nabomolekyler. Air molecules that are cooled by the transition from a wide to a narrower part of the lamellar gaps are assumed to have an increased specific gravity and thus fall faster and at the same time oscillate more slowly and create fewer collisions with neighboring molecules.

En reduksjon av lamellavstanden til under ca. 2,5 millimeter vil føre til risiko for gjenriming og tiltetning. A reduction of the slat spacing to less than approx. 2.5 millimeters will lead to a risk of re-rhyming and sealing.

Kjøleelementet 11 i eksemplet er vist med vertikal spalteorientering, med gravitasjonstyrt luftgjennomløp. The cooling element 11 in the example is shown with vertical slot orientation, with gravity-controlled air flow.

Kjøleelmentet 11 i samsvar med oppfinnelsen kan brukes for forskjellige kjøleformål, både teknisk og i boliger og kontorer. Det er for eksempel egnet for kjøleelement som skal plasseres frittliggende over godset som skal kjøles. The cooling element 11 in accordance with the invention can be used for various cooling purposes, both technically and in homes and offices. It is, for example, suitable for cooling elements that are to be placed free-standing above the goods to be cooled.

Modifikasjoner Modifications

Det er også mulig å oppnå tilsvarende fordeler ved andre oppbygninger av trinnvis innsnevrete lamellavstander. Det kan brukes to eller flere korte lameller mellom hvert par med full utstrekning. Eller det kan lages flere trinnvise avkortinger. Forutsetningen er at de trangeste spaltene eller lamellavstandene er i området 2,5 til 3 millimeter. It is also possible to achieve similar advantages with other constructions of progressively narrower lamella distances. Two or more short slats may be used between each full-span pair. Or several gradual cuts can be made. The prerequisite is that the narrowest gaps or lamella distances are in the range of 2.5 to 3 millimeters.

Claims (4)

1. Anordning ved kjøleelement, hvor et antall plateformete kjølelameller (16,17) er anbragt opptil hverandre slik at det avgrenses gjennomløpsspalter for luft som skal kjøles, karakterisert ved at kjøleelementet er innrettet for bruk ved gravitasjonsstyrt luftgjennomgang med oppovervendt innløpsende og nedovervendt utløpsende, og hvor det er anordnet vekselvis kjølelameller (16) som strekker seg opp til innløpsenden og kjølelameller (17) som strekker seg opp til en posisjon under innløpsenden, slik at luft faller fra bredere spalter til smalere spalter og gjennom disse.1. Device for a cooling element, where a number of plate-shaped cooling lamellas (16,17) are arranged next to each other so that passage slots for air to be cooled are defined, characterized in that the cooling element is designed for use in gravity-controlled air passage with an upward-facing inlet end and a downward-facing outlet end, and where there are alternately arranged cooling fins (16) that extend up to the inlet end and cooling fins (17) that extend up to a position below the inlet end, so that air falls from wider slits to narrower slits and through them. 2. Anordning i samsvar med patentkrav 1, karakterisert ved at de avkortete kjølelamellene (17) strekker seg over ca. halve strømningsveien for lufta gjennom kjøleelementet.2. Device in accordance with patent claim 1, characterized in that the truncated cooling fins (17) extend over approx. half the flow path for the air through the cooling element. 3. Anordning i samsvar med patentkrav 1 eller 2, karakterisert ved at avstanden mellom kjølelamellene (16,17) i den tettstillte delen av køleelementet (11) er 2,5 - 3 mm.3. Device in accordance with patent claim 1 or 2, characterized in that the distance between the cooling fins (16,17) in the close-set part of the cooling element (11) is 2.5 - 3 mm. 4. Anordning i samsvar med et av patentkravene 1 til 3, karakterisert ved at det er anordnet fra 3 til 4 ulike lamellhøyder, slik at det dannes en trinnvis avtrappet spaltelengde.4. Device in accordance with one of the patent claims 1 to 3, characterized in that it is arranged from 3 to 4 different lamella heights, so that a step-by-step gap length is formed.
NO20064338A 2006-09-27 2006-09-27 Apparel by dress element NO329410B1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
NO20064338A NO329410B1 (en) 2006-09-27 2006-09-27 Apparel by dress element
PCT/NO2007/000328 WO2008039074A1 (en) 2006-09-27 2007-09-18 Cooling element
US12/442,586 US20090277621A1 (en) 2006-09-27 2007-09-18 Cooling element
CNA2007800359629A CN101553700A (en) 2006-09-27 2007-09-18 Cooling element
JP2009530303A JP2010505085A (en) 2006-09-27 2007-09-18 Cooling member
RU2009110950/06A RU2473021C2 (en) 2006-09-27 2007-09-18 Cooling element
EP07834745.7A EP2069697A4 (en) 2006-09-27 2007-09-18 Cooling element
US13/644,678 US20130098581A1 (en) 2006-09-27 2012-10-04 Cooling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20064338A NO329410B1 (en) 2006-09-27 2006-09-27 Apparel by dress element

Publications (2)

Publication Number Publication Date
NO20064338L NO20064338L (en) 2008-03-28
NO329410B1 true NO329410B1 (en) 2010-10-18

Family

ID=39230410

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20064338A NO329410B1 (en) 2006-09-27 2006-09-27 Apparel by dress element

Country Status (7)

Country Link
US (2) US20090277621A1 (en)
EP (1) EP2069697A4 (en)
JP (1) JP2010505085A (en)
CN (1) CN101553700A (en)
NO (1) NO329410B1 (en)
RU (1) RU2473021C2 (en)
WO (1) WO2008039074A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO336628B1 (en) * 2012-12-07 2015-10-12 Sundseth Eiendom As Heat Exchanger
WO2016036732A1 (en) * 2014-09-05 2016-03-10 Carrier Corporation Frost tolerant microchannel heat exchanger for heat pump and refrigeration applications
EP3315876B1 (en) * 2016-08-09 2020-02-26 Mitsubishi Electric Corporation Heat exchanger and refrigeration cycle device provided with heat exchanger

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US399493A (en) * 1889-03-12 I-eat-absorbing plate for cooling-coils
US2613065A (en) * 1947-11-21 1952-10-07 Chausson Usines Sa Cooling radiator
US2683355A (en) * 1951-01-24 1954-07-13 Koch Butchers Supply Company Open-top refrigerator display case
US3267692A (en) * 1965-05-28 1966-08-23 Westinghouse Electric Corp Staggered finned evaporator structure
SU851030A1 (en) * 1977-05-16 1981-07-30 за вители Air cooler
DE2928774C2 (en) * 1979-07-17 1984-03-22 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Freezer with a spacious freezer compartment cooled by natural convection
US4733293A (en) * 1987-02-13 1988-03-22 Unisys Corporation Heat sink device assembly for encumbered IC package
JP3126044B2 (en) * 1991-08-12 2001-01-22 昭和アルミニウム株式会社 Heat exchanger
JPH0545023A (en) * 1991-08-12 1993-02-23 Showa Alum Corp Heat exchanger
JPH05157478A (en) * 1991-12-04 1993-06-22 Matsushita Refrig Co Ltd Heat exchanger and refrigerator using the same
JPH0996473A (en) * 1995-09-29 1997-04-08 Showa Alum Corp Heat exchanger
JP2001133180A (en) * 1999-10-29 2001-05-18 Matsushita Refrig Co Ltd Fin-tube-type heat exchanger
US6354367B1 (en) * 2001-02-12 2002-03-12 Rheem Manufacturing Company Air conditioning unit having coil portion with non-uniform fin arrangement
US6923013B2 (en) * 2001-05-04 2005-08-02 Carrier Corporation Evaporator for medium temperature refrigerated merchandiser
WO2003073024A1 (en) * 2002-02-28 2003-09-04 Lg Electronics Inc. Heat exchanger for refrigerator
US7195059B2 (en) * 2003-05-06 2007-03-27 H2Gen Innovations, Inc. Heat exchanger and method of performing chemical processes

Also Published As

Publication number Publication date
US20090277621A1 (en) 2009-11-12
CN101553700A (en) 2009-10-07
RU2009110950A (en) 2010-11-10
JP2010505085A (en) 2010-02-18
EP2069697A1 (en) 2009-06-17
US20130098581A1 (en) 2013-04-25
EP2069697A4 (en) 2013-09-25
WO2008039074A1 (en) 2008-04-03
NO20064338L (en) 2008-03-28
RU2473021C2 (en) 2013-01-20

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