EP0797056A2 - Radiateur à huile dont les bords sont maintenus à basse température - Google Patents

Radiateur à huile dont les bords sont maintenus à basse température Download PDF

Info

Publication number
EP0797056A2
EP0797056A2 EP97830127A EP97830127A EP0797056A2 EP 0797056 A2 EP0797056 A2 EP 0797056A2 EP 97830127 A EP97830127 A EP 97830127A EP 97830127 A EP97830127 A EP 97830127A EP 0797056 A2 EP0797056 A2 EP 0797056A2
Authority
EP
European Patent Office
Prior art keywords
louvers
radiant
baffle plates
maintaining
low temperature
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.)
Granted
Application number
EP97830127A
Other languages
German (de)
English (en)
Other versions
EP0797056A3 (fr
EP0797056B1 (fr
Inventor
Giuseppe Arrà
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.)
Laminox - Srl
Original Assignee
Laminox - Srl
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 Laminox - Srl filed Critical Laminox - Srl
Publication of EP0797056A2 publication Critical patent/EP0797056A2/fr
Publication of EP0797056A3 publication Critical patent/EP0797056A3/fr
Application granted granted Critical
Publication of EP0797056B1 publication Critical patent/EP0797056B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/002—Air heaters using electric energy supply
    • F24H3/004—Air heaters using electric energy supply with a closed circuit for a heat transfer liquid
    • 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
    • F28D1/03—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 plate-like or laminated conduits
    • F28D1/0308—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F28D1/0333—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
    • 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
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/10—Safety or protection arrangements; Arrangements for preventing malfunction for preventing overheating, e.g. heat shields

Definitions

  • This patent application concerns an oil radiator capable of maintaining a low temperature at its external borders.
  • Today oil radiators are commonly used to heat homes; a radiator of this type consists of a set of radiant metal elements containing diathermic oil which is heated by an electric heating element generally housed at the base of the radiator to diffuse the heat throughout the radiant metal structure.
  • the convective flow of the diathermic oil firstly heats the internal surface of the radiant elements and heat is subsequently transferred by conduction from the internal surfaces to the external surfaces of the elements.
  • the width of the radiant elements of the oil radiators was increased with respect to those of traditional elements and their vertical edges were then provided with an articulated series of bends in order to bring the dimensions of the radiant element to the same dimensions of traditional elements - in proximity of which the metal of the radiant element reaches a lower temperature.
  • thermal ribs interrupt the continuity of the material of the radiant element and greatly reduce the propagation of heat by conduction from the area of higher temperature (oil circuit) to the external edges of the radiant elements, namely those with which the user could accidentally touch.
  • this solution aimed at concentrating the thermal exchange at the innermost section of the radiator thereby reducing the peripheral surface temperature.
  • the thermal exchange thus occurs mainly between the inner-most surface of the radiator and the ascending laminar flows of air which rise up the hollow space between one radiant element and another.
  • each radiant element not even the presence of the wide and numerous slots currently provided on each radiant element is capable of favouring the air exchange that flows through the hollow spaces in that these slots are lapped, both internally and externally, by identical uprising laminar air flows that - being such - do not spontaneously pass through the hollow spaces from the interior to the exterior and vice versa.
  • the purpose of this invention is to design a radiator, consisting of a set of radiant elements, capable of limiting the heat at its external edges while maintaining a better thermal efficiency with respect to the above mentioned prior models.
  • the inventive idea is to realise a radiator which, thanks to its particular structure is capable of guaranteeing a continuous exchange of ascending air flow on the walls of the radiant elements.
  • These conveyor louvers may be characterised by a profile having an inward-outward direction and are able to convey the air rising up said chambers to the exterior; alternatively the same may have be characterised by a profile having an outward-inward direction and are able to convey the external air within said chambers.
  • Said louvers may be provided with a conveyor baffle plate projecting like a hood from the exterior of the radiant element, or a conveyor baffle plate concealed in the chamber.
  • louvers will cause a continuous and turbulent mixing of the air in said chambers and the external air, resulting in a substantial exchange of the internal ascending flows, thus increasing the thermal exchange.
  • each radiant element may be positioned specifically according to the function of the movement of the turbulent outward-inward flows, as may be required from time to time.
  • a symmetrical series of conveyor louvers could be realised on the two sides of the radiant element: in other words one series of louvers with an outward-inward conveyor baffle plate will correspond to a series of identical conveyor louvers on the other side of the radiant element.
  • louvers - on both sides of the same radiant element - so that one series of conveyor louvers with outward-inward direction corresponds to a series of conveyor louvers with inward-outward direction on the other side of the same radiant element.
  • the latter solution ensures outward-inward-outward air flows capable of passing the radiant element in an oblique direction and with a sinusoidal flow in that the air entering from a louver having outward-inward direction on one side of the radiant element tends to escape from the other side of the same element, in proximity of the louver with inward-outward direction at a level higher than that of the entry louver.
  • this oblique and sinusoidal movement of the air flows may be used advantageously even on the radiant element model in question without convex vertical chambers.
  • the conveyor baffle plates provided in proximity of one of the sides of this particular radiant element can intercept and deviate the bottom-top air flow that circulates over the same; while the conveyor baffle plates provided on the other side favour the upward expulsion of the air intercepted by the series of opposed louvers.
  • the high thermal exchange obtained within each radiant element also makes it possible to obtain a lower operating temperature of the oil inside the relative circuit and, thus, a lower surface temperature even in the inner-most areas of the metallic structure of the radiator.
  • the radiant element (1) is of the type designed for assembly adjacent to identical elements in order to make up a radiator; the same generally consists of a tank (2) housing diathermic oil heated by an electric heating element.
  • Said radiant element (1) consists of two joining identical shells (3), having an almost rectangular base, characterised by two large holes - one positioned towards the bottom and the other towards the top - designed to house the hubs (4) which permit the assembly of several adjacent radiant elements (1).
  • the sides of the bottom hole are provided with two mouths (5) for the entry of air into the two air chambers realised in radiator (1).
  • Each of the shells (3) is characterised by a conventional central protrusion along almost its entire height, to form - when two shells are joined together - the tank (2) for the diathermic oil.
  • each shell (3) is provided with a canal, having a semielliptical cross-section (6), obtained by drawing, which extends along its vertical sides and top horizontal side.
  • louvers (7) provided with respective conveyor baffle plates (7a), are provided along the vertical section (6a) and along the horizontal section (6b) of this canal. Said louvers (7) being arranged orthogonally with respect to the longitudinal axis of the canal (6), so that their direction is horizontal along the vertical sections (6a) and vertical along the horizontal section (6b).
  • a radiant element (1) is formed, the same being provided, in proximity of the vertical edges with two parallel vertical chambers joined at the top by a horizontal chamber, the same being provided with louvers (7) on both sides.
  • the radiant element (1) is provided with louvers (7) having outward projecting conveyor baffle plates; in particular, one side of the vertical section (6a) of chamber (6) is provided with conveyor baffle plates having outward-inward direction, while, the opposite side is provided with conveyor baffle plates having a inward-outward direction.
  • louvers provided on the horizontal section (6b) of the chamber have conveyor baffle plates with an inward-outward direction projecting outwards.
  • the radiant element (1) operates in the same way as the previous embodiment, with the difference that the louvers (7) are provided with baffle plates - which are again staggered between the two sides of the chambers - but fitted and concealed inside the chambers.
  • the radiant element (1) in question is provided on all the sides of the vertical sections (6a) of the chambers, with louvers (7) having baffle plates with inward-outward direction, fitted and concealed in said chambers.
  • louvers provided on the horizontal section (6b) of the chambers have conveyor baffle plates with inward-outward direction fitted and concealed towards the interior of the chambers.
  • the radiant element in question is provided, on all the sides of the vertical sections (6a) of the chambers, with louvers (7) having outward-inward direction projecting outwards like hoods.
  • louvers provided on the horizontal section (6b) of the chambers are provided with conveyor baffle plates with inward-outward direction fitted and concealed towards the interior of the chambers.
  • the radiant element in question (1) is provided, on each side of the vertical sections (6a) of the chambers (6), with a series of alternating louvers (7) having projecting baffle plates with outward-inward direction and louvers having concealed baffle plates with inward-outward direction.
  • louvers provided on the horizontal section (6b) of the chambers are again provided with conveyor baffle plates with inward-outward direction fitted and concealed towards the interior of the above chambers.
  • the radiant element in question (1) is provided, in a more external position than the oil circuit (2), with two flat vertical sections (8a) and a flat horizontal section (8b), on which louvers (7) with orthogonal direction with respect to the longitudinal axis of said flat sections, are realised.
  • louvers realised on one of the sides of the flat vertical section (8a) are provided with projecting baffle plates with outward-inward direction, while the louvers realised on the opposing side of the corresponding vertical flat section (8a) have projecting baffle plates with inward-outward direction.
  • the louvers provided on the horizontal section (6b) of the chambers are provided with conveyor baffle plates with inward-outward direction projecting outside the above chambers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Housing For Livestock And Birds (AREA)
  • Air-Flow Control Members (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP19970830127 1996-03-22 1997-03-20 Radiateur à huile dont les bords sont maintenus à basse température Expired - Lifetime EP0797056B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMC960011 IT241445Y1 (it) 1996-03-22 1996-03-22 Radiatore ad olio capace di mantenere i propri bordi esterni aridotta temperatura
ITMC960011U 1996-03-22

Publications (3)

Publication Number Publication Date
EP0797056A2 true EP0797056A2 (fr) 1997-09-24
EP0797056A3 EP0797056A3 (fr) 1997-11-05
EP0797056B1 EP0797056B1 (fr) 1999-06-23

Family

ID=11357134

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970830127 Expired - Lifetime EP0797056B1 (fr) 1996-03-22 1997-03-20 Radiateur à huile dont les bords sont maintenus à basse température

Country Status (3)

Country Link
EP (1) EP0797056B1 (fr)
DE (1) DE69700285T2 (fr)
IT (1) IT241445Y1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004055461A1 (fr) * 2002-12-13 2004-07-01 Ficosota Ood Tube plat et bloc pour radiateur
DE102004040949A1 (de) * 2004-08-24 2006-03-02 Gessner, Hans-Jürgen Radiator mit verbesserter Wärmeübertragung
WO2009080727A2 (fr) * 2007-12-21 2009-07-02 De' Longhi Spa Module de rayonnement pour un appareil de chauffage et procédé associé pour fabriquer ledit module de rayonnement
WO2018074345A1 (fr) * 2016-10-21 2018-04-26 パナソニックＩｐマネジメント株式会社 Échangeur de chaleur et dispositif de réfrigération utilisant celui-ci
FR3067446A1 (fr) * 2017-06-09 2018-12-14 Atlantic Industrie Element de radiateur a fluide caloporteur et radiateur forme par assemblage de tels elements
EP3460343A4 (fr) * 2016-10-28 2019-05-22 GD Midea Environment Appliances MFG Co., Ltd. Appareil de chauffage à huile

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3104701A (en) * 1956-01-18 1963-09-24 Olin Mathieson Heat exchanger
US3150250A (en) * 1962-11-29 1964-09-22 Internat Oil Burner Company Sheet metal electrical baseboard heater
FR1524182A (fr) * 1967-02-24 1968-05-10 Rubanox Soc Perfectionnements aux échangeurs thermiques à ailettes
IT226255Z2 (it) * 1992-02-18 1997-06-02 Miralfin Srl Struttura di radiatore particolarmente per il riscaldamento di locali
AT401969B (de) * 1994-04-11 1997-01-27 Heller Reinhard Ing Radiator, insbesondere mobiler raumheizradiator
EP0694743A1 (fr) * 1994-07-28 1996-01-31 Dimplex (Uk) Limited Radiateur en forme de colonne rempli d'huile
IT236601Y1 (it) * 1995-01-20 2000-08-17 Miralfin Srl Struttura di radiatore particolarmente per il riscaldamentodi locali

Non-Patent Citations (1)

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

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004055461A1 (fr) * 2002-12-13 2004-07-01 Ficosota Ood Tube plat et bloc pour radiateur
US7182123B2 (en) 2002-12-13 2007-02-27 Ficosota Ood Rib and block for a radiator
DE102004040949A1 (de) * 2004-08-24 2006-03-02 Gessner, Hans-Jürgen Radiator mit verbesserter Wärmeübertragung
DE102004040949B4 (de) * 2004-08-24 2007-05-31 Gessner, Hans-Jürgen Radiator mit verbesserter Wärmeübertragung
WO2009080727A2 (fr) * 2007-12-21 2009-07-02 De' Longhi Spa Module de rayonnement pour un appareil de chauffage et procédé associé pour fabriquer ledit module de rayonnement
WO2009080727A3 (fr) * 2007-12-21 2009-08-20 De Longhi Spa Module de rayonnement pour un appareil de chauffage et procédé associé pour fabriquer ledit module de rayonnement
WO2018074345A1 (fr) * 2016-10-21 2018-04-26 パナソニックＩｐマネジメント株式会社 Échangeur de chaleur et dispositif de réfrigération utilisant celui-ci
JP2018066533A (ja) * 2016-10-21 2018-04-26 パナソニックＩｐマネジメント株式会社 熱交換器およびそれを用いた冷凍システム
EP3460343A4 (fr) * 2016-10-28 2019-05-22 GD Midea Environment Appliances MFG Co., Ltd. Appareil de chauffage à huile
JP2019531451A (ja) * 2016-10-28 2019-10-31 広東美的環境電器制造有限公司 オイルヒータ
FR3067446A1 (fr) * 2017-06-09 2018-12-14 Atlantic Industrie Element de radiateur a fluide caloporteur et radiateur forme par assemblage de tels elements

Also Published As

Publication number Publication date
EP0797056A3 (fr) 1997-11-05
IT241445Y1 (it) 2001-05-09
DE69700285D1 (de) 1999-07-29
EP0797056B1 (fr) 1999-06-23
DE69700285T2 (de) 2000-02-24
ITMC960011U1 (it) 1997-09-22

Similar Documents

Publication Publication Date Title
RU2065551C1 (ru) Конструкция масляного радиатора, в частности, для обогрева помещений
EP1795811B1 (fr) Four
EP1318362B1 (fr) Echangeur de chaleur à plaques compact et à haut rendement
EP2557370B1 (fr) Unité intérieure de climatiseur
EP0797056B1 (fr) Radiateur à huile dont les bords sont maintenus à basse température
EP1030129A2 (fr) Radiateur indépendant et mobile
CA2429278C (fr) Radiateur electrique
US4784110A (en) Wall furnace
CN212565972U (zh) 电热元件、电热装置及电暖器
EP3112772B1 (fr) Dispositif de ventilateur avec un canal de circulation de préchauffage
CZ179797A3 (en) Panel-like heating body
EP3769016B1 (fr) Dispositif de chauffage électrique pouvant être monté sur un mur avec un facteur de forme mince
RU43954U1 (ru) Теплообменник
RU2133919C1 (ru) Экран для радиатора
RU217519U1 (ru) Панельный радиатор отопления конвекторного типа
RU218145U1 (ru) Панельный радиатор отопления конвекторного типа
PL77792B1 (fr)
CN212299443U (zh) 换热件、换热装置及热水器
RU218146U1 (ru) Панельный радиатор отопления
FI90914B (fi) Lämpöpatteri
CN218164969U (zh) 一种烤箱
KR101845347B1 (ko) 스팀 컨벡션 오븐의 열교환장치
EP1570219A1 (fr) Tube plat et bloc pour radiateur
ITPN980056U1 (it) Friggitrice a gas con vasca di riscaldamento perfezionata
EP2873926B1 (fr) Diffuseur de chaleur modulaire

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

17P Request for examination filed

Effective date: 19970505

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT PT

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT PT

17Q First examination report despatched

Effective date: 19971103

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT PT

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ARRA', GIUSEPPE

REF Corresponds to:

Ref document number: 69700285

Country of ref document: DE

Date of ref document: 19990729

ITF It: translation for a ep patent filed

Owner name: STUDIO TECN. ING. CLAUDIO BALDI

ET Fr: translation filed
REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 19990920

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010320

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20010321

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010531

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020930

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20020930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000331