EP2877801B1 - Panneau de convecteur de tôle pour un radiateur pour chauffer une pièce - Google Patents

Panneau de convecteur de tôle pour un radiateur pour chauffer une pièce Download PDF

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Publication number
EP2877801B1
EP2877801B1 EP13756697.2A EP13756697A EP2877801B1 EP 2877801 B1 EP2877801 B1 EP 2877801B1 EP 13756697 A EP13756697 A EP 13756697A EP 2877801 B1 EP2877801 B1 EP 2877801B1
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EP
European Patent Office
Prior art keywords
channels
radiator
heating
walls
sheet metal
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP13756697.2A
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German (de)
English (en)
Other versions
EP2877801A1 (fr
Inventor
Sergio Zanolin
Renato SPERANZONI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dl Radiators Srl
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Dl Radiators Srl
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Publication date
Application filed by Dl Radiators Srl filed Critical Dl Radiators Srl
Publication of EP2877801A1 publication Critical patent/EP2877801A1/fr
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Publication of EP2877801B1 publication Critical patent/EP2877801B1/fr
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Classifications

    • 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
    • F28F1/126—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 consisting of zig-zag shaped fins
    • F28F1/128—Fins with openings, e.g. louvered fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/20—Heat consumers
    • F24D2220/2009—Radiators
    • F24D2220/2027—Convectors (radiators wherein heat transfer mainly takes place by convection)
    • 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
    • F28D2001/0253—Particular components
    • F28D2001/0286—Radiating plates; Decorative panels
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0035—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for domestic or space heating, e.g. heating radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations

Definitions

  • the present invention relates to a sheet metal convector panel for a radiator for heating a room, according to the preamble of claim 1, particularly but not necessarily of the radiant plate type or of another type, for example with flat tubes, a process for the realization thereof.
  • DE 71 25 678 discloses such a panel.
  • a convector consisting of a sheet metal panel, generally steel, and applicable to a radiator has been present on the market for some time.
  • the panel has a substantially square-wave bent profile, more or less radial, which defines, on the side turned toward the plate, a series of separate parallel convective channels along which an ascending laminar flow of air is created due to a stack effect.
  • a traditional convector panel In order to properly perform the function it is designed for, a traditional convector panel must have convective channels with a minimum height that is not below a certain threshold value; this may result in a considerable consumption of raw material, with an impact both on the weight and cost of the finished product. Thinner sheet metal tends to be used sometimes to overcome such a drawback, but this expedient in turn has a drawback in that below a certain thickness heat conduction through the thickness of the sheet metal is greatly penalized.
  • the technical task that the present invention sets itself is thus to provide a sheet metal convector panel for a radiator for heating a room, which enables the aforementioned technical drawbacks of the prior art to be eliminated.
  • the technical task is achieved by realizing a sheet metal convector panel for a radiator for heating a room having the features of claim 1.
  • a convector panel 1 made of sheet metal, e.g. steel, for a radiator for heating a room, for example, but not necessarily, of the radiant plate type.
  • the convector panel 1 comprises a plurality of parallel longitudinal channels 2 laterally separated from each other by longitudinal separating walls 3.
  • Each channel 2 comprises, in the longitudinal direction of extension thereof, an alternating succession of first delimiting walls 4, which extend from one side of the separating walls 3, and second delimiting walls 5, which extend from the opposite side of the separating walls 3.
  • the first delimiting walls 4 and second delimiting walls 5 exhibit overall a checkerboard arrangement on the convector panel 1, and, therefore, the first and second delimiting walls 4, 5 of the channels 2 are ordered in an alternating succession also in the direction along which the channels 2 succeed one another.
  • the separating walls 3 are flat and in particular they are all coplanar.
  • the first delimiting walls 4 and second delimiting walls 5 have the same height in a direction orthogonal to the plane in which the separating walls 3 lie.
  • the first delimiting walls 4 and second delimiting walls 5 preferably have the same configuration, and in particular a radial trapezoidal configuration.
  • each first delimiting wall 4 comprises two flat sides 4a and 4b having an opposite angle of inclination relative to the plane in which the separating walls 3 lie, and a flat side 4c parallel to the plane in which the separating walls 3 lie
  • each second delimiting wall 5 comprises two flat sides 5a and 5b having an opposite angle of inclination relative to the plane in which the separating walls 3 lie, and a flat side 5c parallel to the plane in which the separating walls 3 lie.
  • each pair of consecutive delimiting walls 4, 5 has adjacent longitudinal ends 4e, 5e which meet at the separating walls 3 in points P1, P2.
  • the adjacent longitudinal ends 4e, 5e of the consecutive delimiting walls 4, 5 have a mating shape, in particular the end 4e of the first delimiting wall 4 has a straight edge lying in a plane orthogonal to the longitudinal axis of the channel 2 on the sides 4a and 4b, and a concave edge on the side 4c, while the end 5e of the second delimiting wall 5 has a straight edge lying in a plane orthogonal to the longitudinal axis of the channel 2 on the sides 5a and 5b, and a convex edge on the side 5c.
  • the convector panel 1 delimits a plurality of secondary channels 7, each delimited by a separating wall 3 and by the sides 5a and 5b of the second delimiting walls 5 which start off from the separating wall 3.
  • the secondary channels 7 have a height that is half that of the main channels 2.
  • the numerical reference 6 indicates the vertical wall of the radiant plate of the radiator, on which the convector panel 1 is applied with its long side in a horizontal direction.
  • the plate generally has a heating fluid circuit comprising a plurality of parallel longitudinal wet channels alternating with dry channels.
  • the wall 6 of the radiant plate closes off one side of the channels 2 and 7.
  • the main channels 2 overlie the wet channels of the plate, whereas the secondary channels 7 overlie the dry channels of the plate.
  • the main channels 2 have a direct exposure to the atmosphere in the longitudinal portions 8 where the second delimiting walls 5 are present, and are laterally in fluid communication with the secondary channels 7 in the longitudinal portions 9 where the first delimiting walls 4 are present.
  • the convective exchange is due to the ascending air flow, which, by virtue of the stack effect, rises up the main vertical channels 2, the secondary vertical channels 7, and the oblique channels that are created as a result of the lateral fluid communication between the main channels 2 and secondary channels 7.
  • the ascending air flow due to the stack effect along the main channels 2 is rendered turbulent by the alternating exposure to the air of the outside atmosphere and the air that flows in the secondary channels 7.
  • the increase in turbulence has a beneficial effect on the efficiency of the convective heat exchange of the convective panel 1.
  • At least the length of the longitudinal portions 8 of the channels 2 exposed to the atmosphere is dimensioned so as to obtain an ascending air flow along the channels 2 having maximum turbulence with a minimum loss of air flow rate.
  • excessively short channel portions 8 would preclude creating an appreciable turbulence in the ascending flow, while excessively long portions 8 would cause a cooling of the ascending air and a consequent loss in air flow rate.
  • this innovative convector panel 1 is capable of achieving the same thermal efficiency, but with considerable savings in raw materials.
  • the convector panel lends itself equally well to a vertical installation rotated by 90°, with the channels 2 oriented in a horizontal direction.
  • first delimiting walls 4 and second delimiting walls 5 of the channels 2 create an obstacle course for the ascending air flow, which determines greater turbulence and ultimately a benefit in terms of convective exchange efficiency.
  • the first delimiting walls 4 intercept and divert the ascending air flow, which in this case has an ascending path that is no longer prevalently straight but rather prevalently zigzag.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Central Heating Systems (AREA)

Claims (10)

  1. Panneau (1) de convecteur en tôle pour un radiateur pour chauffer une pièce, comprenant une pluralité de canaux (2) longitudinaux parallèles principaux séparés latéralement les uns des autres par des cloisons de séparation (3) longitudinales, chaque canal principal (2) comprenant, dans sa direction longitudinale d'extension, une succession alternée de premières cloisons de délimitation (4) qui se prolongent à partir d'un côté des cloisons de séparation (3), et des secondes cloisons de délimitation (5) qui se prolongent du côté opposé des cloisons de séparation (3), caractérisé en ce que les première et seconde cloisons de délimitation (4, 5) des canaux principaux (2) sont ordonnées dans une succession alternée aussi dans la direction le long de laquelle se succèdent l'un après l'autre les canaux principaux (2), et en ce que lesdites première et seconde cloisons de délimitation (4, 5), en coopération avec lesdites cloisons de séparation (3), définissent des canaux longitudinaux (7) secondaires étant parallèles aux / et s'alternant avec les canaux principaux (2) et des canaux croisant obliquement les canaux principaux (2) et les canaux secondaires (7).
  2. Panneau (1) de convecteur en tôle pour un radiateur pour chauffer une pièce selon la revendication 1, caractérisé en ce que lesdites cloisons de séparation (3) sont plates.
  3. Panneau (1) de convecteur en tôle pour un radiateur pour chauffer une pièce selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdites cloisons de séparation (3) sont coplanaires.
  4. Panneau (1) de convecteur en tôle pour un radiateur pour chauffer une pièce selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdites première et seconde cloisons de délimitation (4, 5) ont la même hauteur dans une direction orthogonale au plan dans lequel reposent lesdites cloisons de séparation (3).
  5. Panneau (1) de convecteur en tôle pour un radiateur pour chauffer une pièce selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdites première et seconde cloisons de délimitation (4, 5) ont la même configuration.
  6. Panneau (1) de convecteur en tôle pour un radiateur pour chauffer une pièce selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdites première et seconde cloisons de délimitation (4, 5) ont une configuration trapézoïdale radiale.
  7. Panneau (1) de convecteur en tôle pour un radiateur pour chauffer une pièce selon l'une quelconque des revendications précédentes, caractérisé en ce que, pour chaque canal (2), chaque paire de cloisons de délimitation (4, 5) consécutive comporte des extrémités longitudinales (4e, 5e) adjacentes qui se croisent en correspondance des cloisons de séparation (3).
  8. Radiateur pour chauffer une pièce, caractérisé en ce qu'il comprend au moins un panneau (1) de convecteur en tôle selon l'une quelconque des revendications précédentes.
  9. Radiateur pour chauffer une pièce selon la revendication précédente, caractérisé en ce que ledit panneau est appliqué verticalement aux canaux orientés horizontalement.
  10. Radiateur pour chauffer une pièce selon la revendication 8, caractérisé en ce que ledit panneau est appliqué verticalement aux canaux orientés verticalement.
EP13756697.2A 2012-06-15 2013-06-13 Panneau de convecteur de tôle pour un radiateur pour chauffer une pièce Active EP2877801B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT001039A ITMI20121039A1 (it) 2012-06-15 2012-06-15 Pannello convettore in lamiera per un radiatore per il riscaldamento di un ambiente
PCT/IT2013/000170 WO2013186800A1 (fr) 2012-06-15 2013-06-13 Panneau de convecteur de tôle pour un radiateur pour chauffer une pièce

Publications (2)

Publication Number Publication Date
EP2877801A1 EP2877801A1 (fr) 2015-06-03
EP2877801B1 true EP2877801B1 (fr) 2019-04-17

Family

ID=46466697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13756697.2A Active EP2877801B1 (fr) 2012-06-15 2013-06-13 Panneau de convecteur de tôle pour un radiateur pour chauffer une pièce

Country Status (3)

Country Link
EP (1) EP2877801B1 (fr)
IT (1) ITMI20121039A1 (fr)
WO (1) WO2013186800A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014004485A1 (de) * 2014-03-28 2015-10-01 Rettig Icc B.V. Konvektor-Wärmeübertrager
KR102130879B1 (ko) * 2014-04-16 2020-07-06 산화(항저우) 마이크로 채널 히트 익스체인저 컴퍼니 리미티드 핀과 이를 구비한 만곡형 열교환기

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7125678U (de) * 1974-05-16 Schaefer Werke Kg Konvektionsplatte zur Anordnung hinter einem Heizkörper
GB1030129A (en) * 1963-11-01 1966-05-18 Servotomic Ltd Improvements in or relating to heat exchangers
DE3227146A1 (de) * 1982-07-21 1984-01-26 Schäfer Werke GmbH, 5908 Neunkirchen Waermetauscher, insbesondere plattenheizkoerper
DE3917278A1 (de) * 1989-05-24 1990-11-29 Kermi Gmbh Plattenheizkoerper mit konvektor und verfahren zu seiner herstellung
DE19921144B4 (de) * 1999-05-07 2010-06-02 Caradon Heating Europe B.V. Heizkörper

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2877801A1 (fr) 2015-06-03
WO2013186800A1 (fr) 2013-12-19
ITMI20121039A1 (it) 2013-12-16

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