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NO750238L - - Google Patents

Info

Publication number
NO750238L
NO750238L NO750238A NO750238A NO750238L NO 750238 L NO750238 L NO 750238L NO 750238 A NO750238 A NO 750238A NO 750238 A NO750238 A NO 750238A NO 750238 L NO750238 L NO 750238L
Authority
NO
Norway
Prior art keywords
heat exchanger
tube
lamellae
exchanger according
slats
Prior art date
Application number
NO750238A
Other languages
Norwegian (no)
Inventor
H Schnyder
Original Assignee
Von Roll Ag
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 Von Roll Ag filed Critical Von Roll Ag
Publication of NO750238L publication Critical patent/NO750238L/no

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-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
    • F28D1/02Heat-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
    • F28D1/04Heat-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
    • F28D1/047Heat-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
    • F28D1/0475Heat-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12Tubular 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
    • F28F1/24Tubular 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
    • F28F1/30Tubular 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 being attachable to the element
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12Tubular 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
    • F28F1/24Tubular 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
    • F28F1/32Tubular 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Description

Foreliggende oppfinnelse angår en varmeutveksler, særlig varmelegeme, med minst ett rør som er forsynt med i forhold til røraksen vinkelrett anordnede lameller. The present invention relates to a heat exchanger, in particular a heating element, with at least one tube which is provided with lamellae arranged perpendicular to the tube axis.

Anvendelsen av rør forsynt med lameller for det formålThe use of tubes provided with lamellae for that purpose

å overføre varme, er vanlig kjent. Varmeoverføringen foregår i dette tilfelle overveiende ved konveksjon og varmestrålingen er i dette tilfelle ubetydelig. Hvis følgelig slike rør med lameller anvendes som varmelegemer, vil slike varmeanlegg mangle et vesentlig element, nemlig varmestrålingen som i betydelig grad bidrar til fysiologisk behagelighet i et oppvarmet rom. to transfer heat, is commonly known. In this case, the heat transfer takes place mainly by convection and the heat radiation is negligible in this case. If, consequently, such tubes with lamellae are used as heaters, such heating systems will lack an essential element, namely the heat radiation which contributes significantly to physiological comfort in a heated room.

På den annen side utgjør de nevnte rør et enkelt og billig byggeelement som med fordel lar seg anvende som varmelegemer. On the other hand, the aforementioned pipes constitute a simple and cheap building element which can be advantageously used as heaters.

Til grunn for oppfinnelsen ligger den oppgave å skaffeThe invention is based on the task of obtaining

en varmeutveksler av den ovenfor beskrevne art, som er slik utformet at varmeoverfØringen foruten ved konveksjon også foregår i en viss grad ved varmestråling uten at derved lamellrørets enkle konstruksjon må oppgis. a heat exchanger of the kind described above, which is designed in such a way that, in addition to convection, the heat transfer also takes place to a certain extent by heat radiation, without thereby having to specify the simple construction of the lamellar tube.

Denne oppgave løses ifølge oppfinnelsen ved at lamellene på romsiden har en kantdel med et vinkelformet ben som i det minste tilnærmet danner bro over avstanden i sideretning mellom to ved siden av hverandre liggende lameller. According to the invention, this task is solved by the slats on the room side having an edge part with an angular leg which at least approximately bridges the distance in the lateral direction between two adjacent slats.

Oppfinnelsen skal i det følgende beskrives nærmere under henvisning til tegningen som viser et utførelseseksempel, idet fig. 1 er en perspektivisk fremstilling av et varmelegeme som består av et med lameller forsynt rør, fig. 2 er et varmelegeme med to over hverandre anordnede og seriekoblede rør med lameller, fig. 3 er et sideriss av lamellrøret på fig. 1, fig. 4 er et sideriss av en annen ut-førelse av et lamellrør, og fig. 5 er et sideriss av en tredje ut-førelse av et lamellrør med på tyers av strømningsretningen anordnede vulster i lamellene, og fig. 6 et snitt gjennom vulstformer for ut- In the following, the invention will be described in more detail with reference to the drawing which shows an exemplary embodiment, as fig. 1 is a perspective representation of a heater which consists of a tube provided with lamellae, fig. 2 is a heating element with two tubes arranged one above the other and connected in series with lamellae, fig. 3 is a side view of the lamellar tube in fig. 1, fig. 4 is a side view of another embodiment of a lamellar tube, and fig. 5 is a side view of a third embodiment of a lamellar tube with beads in the lamellae arranged opposite the direction of flow, and fig. 6 a section through bead forms for out-

førelsen på fig. 5.the operation in fig. 5.

Fig. 1 viser et varmelegeme 1 som har et rettlinjet rør-stykke 2 på hvilket det med innbyrdes avstand er festet lameller 3, f.eks. av blikk. For forenkling av fremstillingen er på fig. 1 noen lameller utelatt. Fig. 1 shows a heater 1 which has a rectilinear piece of pipe 2 on which slats 3 are attached at a distance from each other, e.g. of gaze. To simplify the production, fig. 1 some slats omitted.

Lamellene 3 har kvadratisk eller rektangulær form. Lamellene 3 har på den side, hvis kantdel 4 er rettet mot det rom som skal oppvarmes, et ben 5 som danner en vinkel med lamellen 3. Benet 5 har en slik bredde at det tilnærmet dekker avstanden til den til-støtende lamell. Det er i dette tilfelle mer et spørsmål om produk-sjonen, hvorvidt benet 5 skal berøre den tilstøtende lamell 3 eller være skilt fra denne i en liten avstand. The slats 3 have a square or rectangular shape. The lamellas 3, on the side whose edge part 4 is directed towards the room to be heated, have a leg 5 which forms an angle with the lamella 3. The leg 5 has such a width that it approximately covers the distance to the adjacent lamella. In this case, it is more a matter of production, whether the leg 5 should touch the adjacent slat 3 or be separated from it by a small distance.

På fig. 2 er to rør 2 ifølge fig. 1 anordnet over hverandre med parallelle akser og koblet i serie ved hjelp av en rørbøy 6. Kantene 7 av benene 5 på lamellene 3 som løper parallelt med rørenes to akser, kan i praksis berøre hverandre eller være anord- In fig. 2 are two pipes 2 according to fig. 1 arranged above each other with parallel axes and connected in series by means of a pipe bend 6. The edges 7 of the legs 5 of the slats 3 which run parallel to the two axes of the pipes, can in practice touch each other or be device-

net med en liten klaring. Da benene 5 dessuten praktisk talt berører den tilstøtende lamell 3, henholdsvis har en liten klaring mot denne, fremkommer de .således over hverandre anordnede rør 2 som en mer eller mindre sammenhengende vegg som er rettet mot det rom som skal oppvarmes Virkningen av den på denne måte fremkomne vegg gjør seg gjeldende net with a small clearance. As the legs 5 also practically touch the adjacent lamella 3, respectively have a small clearance to this, the pipes 2 arranged above each other in this way appear as a more or less continuous wall which is directed towards the room to be heated. way the resulting wall takes effect

i en betydelig økning av varmeoverføringen ved varmestråling. Man opp-når således den ved romoppvarming ønskede andel av varmestrålingen. I dette tilfelle kan lengden og antallet av de over hverandre anordnede rør 2 velges vilkårlig. Det er videre mulig å utføre de over hverandre liggende lameller 3 og deres ben 5 i ett stykke. in a significant increase in heat transfer by heat radiation. The desired proportion of the heat radiation is thus reached for space heating. In this case, the length and number of the pipes 2 arranged above each other can be chosen arbitrarily. It is also possible to make the overlapping slats 3 and their legs 5 in one piece.

Av fig. 3 vil det fremgå at røret 2 er anordnet i midt-punktet for lamellen 3. Hvis man vil øke strålingsandelen av varme-overføringen, kan man velge en utførelse som vist på fig. 4. Ved denne utførelse av røret 2 er dette ut fra lamellens 3 midtpunkt for-skjøvet i retning mot benet 5. From fig. 3, it will appear that the tube 2 is arranged in the middle point of the lamella 3. If you want to increase the radiation part of the heat transfer, you can choose a design as shown in fig. 4. In this version of the tube 2, it is shifted from the center of the lamella 3 in the direction towards the leg 5.

På fig. 5 er vist en utførelse av et lamellrør, i hvis lameller der er forarbeidet vulster 8 av lamellmaterialet. De skal være anordnet på tvers av strømningsretningen 9, slik at de forstyrrer dannelsen av det laminære grensesjikt som blir stadig tykkere. Langs strømningsbanen blir luften følgelig for hver vulst igjen satt i turbu-lens, hvorved varmeovergangen forbedres. In fig. 5 shows an embodiment of a lamella tube, in the lamellas of which beads 8 of the lamella material have been processed. They must be arranged across the direction of flow 9, so that they interfere with the formation of the laminar boundary layer which becomes increasingly thicker. Along the flow path, the air is consequently again put into turbulence for each bead, whereby the heat transfer is improved.

Vulstene kan være forskjellig utformet, idet fig. 6 viser noen mulig tverrsnittsformer a-g. The beads can be differently designed, as fig. 6 shows some possible cross-sectional shapes a-g.

Fremstillingen a<y>det beskrevne rør med lameller som har ben, krever i praksis det samme arbeide og de samme omkostnin-ger som et rør med lameller uten ben, idet tilleggsbehovet for ma-teriale til utformning av benet bare teller meget lite og også ut-formningen av vulstene kan i praksis foregå med samme innsats. The production of the described tube with slats that has legs requires in practice the same work and the same costs as a tube with slats without legs, as the additional need for material to shape the leg counts for very little and also the design of the beads can in practice take place with the same effort.

Claims (5)

Varmeutveksler, særlig varmelegeme, med minst ett rør som er forsynt med i forhold til røraksen vinkelrett anordnede lameller, karakterisert ved at lamellene (3) på romsiden har en kantdel (4) med et vinkelformet ben (5) som i det minste tilnærmet danner bro over avstanden i sideretningen mellom to ved siden av hverandre liggende lameller.Heat exchanger, in particular heating element, with at least one tube which is provided with lamellae arranged perpendicular to the tube axis, characterized in that the lamellae (3) on the room side have an edge part (4) with an angular leg (5) which at least approximately forms a bridge over the distance in the lateral direction between two adjacent slats. 2. Varmeutveksler ifølge krav 1, karakterisert ved at røret (2) er anordnet forskjøvet i retning av benet (5) sammen-lignet med lamellenes (3) midtpunkt.2. Heat exchanger according to claim 1, characterized in that the tube (2) is arranged offset in the direction of the leg (5) compared to the center point of the lamellae (3). 3. Varmeutveksler ifølge krav 1, karakterisert ved at flere rette rør (2) med parallelle akser,hvilke er anbragt over hverandre, henholdsvis ved siden av hverandre, og at de kanter (7) av benene (5) på lamellene (3) som strekker.% s.eg parallelt med røraksene, er anbragt side om side.3. Heat exchanger according to claim 1, characterized in that several straight tubes (2) with parallel axes, which are arranged above each other, respectively next to each other, and that the edges (7) of the legs (5) on the slats (3) which stretches.% eg parallel to the pipe axes, are placed side by side. 4. Varmeutveksler ifølge krav 1 og 3, karakteriser yed at ved over hverandre liggende rør (2) er de over hverandre liggende lameller (3) og deres ben (5) utført i ett stykke.4. Heat exchanger according to claims 1 and 3, characterized by the fact that in the case of overlapping pipes (2), the overlapping lamellas (3) and their legs (5) are made in one piece. 5. Varmeutveksler ifølge krav 1, karakterisert ved at lamellene (3) har vulster (8) som er utformet av lamellmaterialet og anordnet på tvers av strømningsretningen (9).5. Heat exchanger according to claim 1, characterized in that the lamellas (3) have beads (8) which are formed from the lamella material and arranged across the direction of flow (9).
NO750238A 1974-01-28 1975-01-27 NO750238L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH112974A CH565985A5 (en) 1974-01-28 1974-01-28

Publications (1)

Publication Number Publication Date
NO750238L true NO750238L (en) 1975-08-25

Family

ID=4203161

Family Applications (1)

Application Number Title Priority Date Filing Date
NO750238A NO750238L (en) 1974-01-28 1975-01-27

Country Status (8)

Country Link
BE (1) BE824738A (en)
CH (1) CH565985A5 (en)
DE (1) DE2461319A1 (en)
DK (1) DK25375A (en)
FR (1) FR2259341A1 (en)
IT (1) IT1028125B (en)
NO (1) NO750238L (en)
SE (1) SE7500507L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2393257A1 (en) * 1977-05-09 1978-12-29 Serck Industries Ltd Tube and fin heat exchanger - whose fins bear turbulence inducing ribs of specific dimension
JPS56501659A (en) 1979-12-03 1981-11-12
BR8008910A (en) * 1979-12-03 1981-10-20 Caterpillar Tractor Co HEAT EXCHANGER NUCLEO WITH EXTREME COVERS
EP1271063B1 (en) * 2001-06-18 2004-03-10 Bruno Della Gaspera Heat exchanger, in particular baseboard heater
US6997247B2 (en) * 2004-04-29 2006-02-14 Hewlett-Packard Development Company, L.P. Multiple-pass heat exchanger with gaps between fins of adjacent tube segments
CN111947486B (en) * 2019-05-17 2021-10-15 广东美的白色家电技术创新中心有限公司 Heat exchanger and electrical equipment

Also Published As

Publication number Publication date
CH565985A5 (en) 1975-08-29
FR2259341A1 (en) 1975-08-22
DE2461319A1 (en) 1975-07-31
FR2259341B3 (en) 1977-10-14
IT1028125B (en) 1979-01-30
SE7500507L (en) 1975-07-29
BE824738A (en) 1975-05-15
DK25375A (en) 1975-10-13

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