EP0482494A1 - Radiating convection heating apparatus - Google Patents

Radiating convection heating apparatus Download PDF

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Publication number
EP0482494A1
EP0482494A1 EP91117644A EP91117644A EP0482494A1 EP 0482494 A1 EP0482494 A1 EP 0482494A1 EP 91117644 A EP91117644 A EP 91117644A EP 91117644 A EP91117644 A EP 91117644A EP 0482494 A1 EP0482494 A1 EP 0482494A1
Authority
EP
European Patent Office
Prior art keywords
heating apparatus
side wall
heating
fan
heat exchange
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
EP91117644A
Other languages
German (de)
French (fr)
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EP0482494B1 (en
Inventor
Giorgio Daolio
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.)
OMAS Srl
Original Assignee
OMAS Srl
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Filing date
Publication date
Application filed by OMAS Srl filed Critical OMAS Srl
Publication of EP0482494A1 publication Critical patent/EP0482494A1/en
Application granted granted Critical
Publication of EP0482494B1 publication Critical patent/EP0482494B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0411—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between for domestic or space-heating systems
    • F24H3/0417—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between for domestic or space-heating systems portable or mobile

Definitions

  • the present invention relates to a radiating convection heating apparatus.
  • heater fans are already commercially available and are substantially constituted by an electric resistor arranged in a flow of air generated by a fan which thereby facilitates the rate of heat exchange from the resistor toward the environment.
  • radiators are also known; said radiators are substantially constituted by a body which is composed of a plurality of columns which in practice define a chamber for containing diathermic oil which is heated by a resistor which is generally arranged in a lower part of the chamber.
  • the aim of the invention is indeed to solve the above described problem by providing a radiating convection heating apparatus which, despite having a mass of diathermic oil which is heated by a resistor, allows to also use a forced ventilation which facilitates heat exchange without thereby creating non-uniformities in heating.
  • a particular object of the invention is to provide a heating apparatus which allows to optimize heat exchange by using forced ventilation, achieving a significant increase in the outward production of heat.
  • Another object of the present invention is to provide a heating apparatus which allows to humidify the environment, thus restoring the natural equilibrium in said environment.
  • Not least object of the present invention is to provide a heating apparatus which can be easily obtained starting from commonly commercially available elements and materials and is furthermore competitive from a merely economical point of view.
  • a radiating convection heating apparatus which comprises two side wall compartments between which a plurality of column-like elements is arranged, said elements extending between a lower manifold and an upper manifold so as to define a containment chamber for diathermic oil which can be heated by means of an electric resistor, characterized in that it comprises a fan the delivery whereof is connected to a heat exchange duct which extends inside said upper manifold and exits at one of said side wall compartment.
  • the radiating convection heating apparatus which is generally indicated by the reference numeral 1, comprises two side wall compartments, respectively indicated by 2 and 3, which are advantageously but not necessarily mounted on castors 4. Between the side wall compartments 2 and 3 there is a plurality of column-like elements 5 which extend between a lower manifold 6 and an upper manifold 7, so as to define a chamber for diathermic oil which can be heated by means of an electric resistor which is generally arranged at the lower manifold 6.
  • An important peculiarity of the invention is constituted by the fact that in one of the side wall compartment, for example in the side wall compartment 2, there is a fan 10, the intake whereof is arranged at an opening 11 which allows to draw air at the interspace defined in the side wall compartment, so that the air is drawn in from below and is preheated by striking the face of the side wall compartment which is directed toward the heating elements.
  • the fan 10 is provided with an impeller 12, of a per se known type, advantageously with radial vanes, which feeds the flow of drawn air into a delivery duct 15 which is accommodated inside the side wall compartment 2 and is connected, in an upward position, to a heat exchange duct 20 which extends inside the upper manifold 7, so that in practice the air strikes the heating body from the inside, so that it undergoes an easy heating without dispersions or non-uniformities of flow toward the outside.
  • an impeller 12 of a per se known type, advantageously with radial vanes, which feeds the flow of drawn air into a delivery duct 15 which is accommodated inside the side wall compartment 2 and is connected, in an upward position, to a heat exchange duct 20 which extends inside the upper manifold 7, so that in practice the air strikes the heating body from the inside, so that it undergoes an easy heating without dispersions or non-uniformities of flow toward the outside.
  • the heat exchange duct 20 exits at a grille 21 which is directed outward and is advantageously provided on the other side wall compartment 3.
  • the heating apparatus comprises a humidification unit, generally indicated by the reference numeral 30, which is constituted by a storage tank 31 and by a humidification tank 32 which are mutually connected by means of a lower duct 33 so as to obtain in practice two communicating vessels.
  • a humidification unit generally indicated by the reference numeral 30, which is constituted by a storage tank 31 and by a humidification tank 32 which are mutually connected by means of a lower duct 33 so as to obtain in practice two communicating vessels.
  • a heating resistor 34 for humidification which can be independently powered and allows to create steam in a limited region of water, since in practice only the humidification tank is heated, allowing a good delivery of humidification steam, which escapes by means of an upper grille, generally indicated by 40.
  • the materials employed, as well as the dimensions and the contingent shapes may be any according to the requirements.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Central Heating Systems (AREA)
  • Air Humidification (AREA)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Electric Stoves And Ranges (AREA)

Abstract

The present invention relates to a radiating convection heating apparatus which comprises two side wall compartments (2,3), between which a plurality of column-like elements (5) is arranged; the column-like elements extend between a lower manifold (6) and an upper manifold (7) so as to define a chamber for containing diathermic oil which can be heated by means of an electric resistor. The peculiarity of the invention is constituted by the fact that it comprises a fan (10) the air delivery whereof is connected to a heat exchange duct (20) which extends inside said upper manifold and exits at one (3) of said side wall compartments.

Description

  • The present invention relates to a radiating convection heating apparatus.
  • As is known, so-called heater fans are already commercially available and are substantially constituted by an electric resistor arranged in a flow of air generated by a fan which thereby facilitates the rate of heat exchange from the resistor toward the environment.
  • These solutions have the disadvantage of not allowing a good heating of the environment, since the presence of an electric resistor exposed to the air does not allow to provide uniform heating effects and the heating element, by having no heat inertia, in practice ceases its effect immediately as soon as the power supply is disconnected.
  • So-called oil radiators are also known; said radiators are substantially constituted by a body which is composed of a plurality of columns which in practice define a chamber for containing diathermic oil which is heated by a resistor which is generally arranged in a lower part of the chamber.
  • This solution creates the advantage whereby a considerable mass is heated which acts as a thermal buffer which maintains a production of heat toward the environment even when the electric resistor is switched off.
  • However, in these embodiments it is not possible to increase heat exchange by means of forced ventilation, due to the difficulty encountered in having a good distribution of the air flow when said air flow is directed against the columns of the radiator which in practice constitute the heating element.
  • The aim of the invention is indeed to solve the above described problem by providing a radiating convection heating apparatus which, despite having a mass of diathermic oil which is heated by a resistor, allows to also use a forced ventilation which facilitates heat exchange without thereby creating non-uniformities in heating.
  • Within the scope of the above aim, a particular object of the invention is to provide a heating apparatus which allows to optimize heat exchange by using forced ventilation, achieving a significant increase in the outward production of heat.
  • Another object of the present invention is to provide a heating apparatus which allows to humidify the environment, thus restoring the natural equilibrium in said environment.
  • Not least object of the present invention is to provide a heating apparatus which can be easily obtained starting from commonly commercially available elements and materials and is furthermore competitive from a merely economical point of view.
  • This aim, these objects and others which will become apparent hereinafter are achieved by a radiating convection heating apparatus, according to the invention, which comprises two side wall compartments between which a plurality of column-like elements is arranged, said elements extending between a lower manifold and an upper manifold so as to define a containment chamber for diathermic oil which can be heated by means of an electric resistor, characterized in that it comprises a fan the delivery whereof is connected to a heat exchange duct which extends inside said upper manifold and exits at one of said side wall compartment.
  • Further characteristics and advantages will become apparent from the description of a preferred but not exclusive embodiment of a radiating convection heating apparatus, according to the present invention, illustrated only by way of non-limitative example in the accompanying drawings, wherein:
    • figure 1 is a schematic front elevation view of the heating apparatus according to the invention;
    • figure 2 is a lateral elevation view of the heating apparatus;
    • figure 3 is a partially cutout view of the heating apparatus, illustrating the upper manifold and the heat exchange duct;
    • figure 4 is a sectional view of the fan;
    • figure 5 is a sectional view, taken along the line V-V of figure 4.
  • With reference to the above figures, the radiating convection heating apparatus according to the invention, which is generally indicated by the reference numeral 1, comprises two side wall compartments, respectively indicated by 2 and 3, which are advantageously but not necessarily mounted on castors 4. Between the side wall compartments 2 and 3 there is a plurality of column-like elements 5 which extend between a lower manifold 6 and an upper manifold 7, so as to define a chamber for diathermic oil which can be heated by means of an electric resistor which is generally arranged at the lower manifold 6.
  • An important peculiarity of the invention is constituted by the fact that in one of the side wall compartment, for example in the side wall compartment 2, there is a fan 10, the intake whereof is arranged at an opening 11 which allows to draw air at the interspace defined in the side wall compartment, so that the air is drawn in from below and is preheated by striking the face of the side wall compartment which is directed toward the heating elements.
  • The fan 10 is provided with an impeller 12, of a per se known type, advantageously with radial vanes, which feeds the flow of drawn air into a delivery duct 15 which is accommodated inside the side wall compartment 2 and is connected, in an upward position, to a heat exchange duct 20 which extends inside the upper manifold 7, so that in practice the air strikes the heating body from the inside, so that it undergoes an easy heating without dispersions or non-uniformities of flow toward the outside.
  • The heat exchange duct 20 exits at a grille 21 which is directed outward and is advantageously provided on the other side wall compartment 3.
  • Another important aspect of the invention is furthermore constituted by the fact that the heating apparatus, according to the invention, comprises a humidification unit, generally indicated by the reference numeral 30, which is constituted by a storage tank 31 and by a humidification tank 32 which are mutually connected by means of a lower duct 33 so as to obtain in practice two communicating vessels.
  • Inside the tank 32 there is a heating resistor 34 for humidification, which can be independently powered and allows to create steam in a limited region of water, since in practice only the humidification tank is heated, allowing a good delivery of humidification steam, which escapes by means of an upper grille, generally indicated by 40.
  • By means of the described arrangement, it is thus possible to provide a radiating convection heating apparatus which contains diathermic oil and offers the possibility of performing forced-ventilation heating, using the flow of the ventilation air inside the heating body, i.e. inside the heat exchange duct which is arranged coaxially inside the upper manifold.
  • The invention thus conceived is susceptible to numerous modifications and variations, all of which are within the scope of the inventive concept.
  • All the details may furthermore be replaced with other technically equivalent elements.
  • In practice, the materials employed, as well as the dimensions and the contingent shapes, may be any according to the requirements.
  • Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly such reference signs do not have any limiting effect on the scope of each element identified by way of example by such reference signs.

Claims (7)

1. Radiating convection heating apparatus, comprising two side wall compartments (2,3) between which a plurality of column-like elements (5) is arranged, said elements (5) extending between a lower manifold (6) and an upper manifold (7) so as to define a containment chamber for diathermic oil which can be heated by means of an electric resistor, characterized in that it comprises a fan (10) the air delivery whereof is connected to a heat exchange duct (20) which extends inside said upper manifold (7) and exits at one (3) of said side wall compartments.
2. Heating apparatus according to claim 1, characterized in that said fan (10) is arranged inside one (2) of said side wall compartments.
3. Heating apparatus according to one or more of the preceding claims, characterized in that said fan (10) has an intake (11) defined in the interspace directed toward said heating elements in order to preheat the drawn air, taken from the lower part.
4. Heating apparatus according to one or more of the preceding claims, characterized in that said fan (10) is connected to a delivery duct (15) which is connected to said heat exchange duct (20).
5. Heating apparatus according to one or more of the preceding claims, characterized in that said heat exchange duct (20) extends coaxially inside said upper manifold (7).
6. Heating apparatus according to one or more of the preceding claims, characterized in that it comprises a humidification unit (30) which is provided with a heating resistor (34) for the humidifier which can be actuated independently of the electric heating resistor of the apparatus.
7. Heating apparatus, according to one or more of the preceding claims, characterized in that said humidification unit (30) has a storage tank (31) and a humidification tank (32) which are mutually connected by means of a lower duct (33) so as to define a communicating-vessel coupling, said electric resistor (34) for the humidifier being provided in said humidification tank (32).
EP91117644A 1990-10-23 1991-10-16 Radiating convection heating apparatus Expired - Lifetime EP0482494B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2184490 1990-10-23
IT02184490A IT1244838B (en) 1990-10-23 1990-10-23 RADIANT CONVECTION HEATING APPARATUS.

Publications (2)

Publication Number Publication Date
EP0482494A1 true EP0482494A1 (en) 1992-04-29
EP0482494B1 EP0482494B1 (en) 1994-05-25

Family

ID=11187659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91117644A Expired - Lifetime EP0482494B1 (en) 1990-10-23 1991-10-16 Radiating convection heating apparatus

Country Status (8)

Country Link
EP (1) EP0482494B1 (en)
JP (1) JPH04281157A (en)
KR (1) KR920008430A (en)
AU (1) AU644907B2 (en)
DE (1) DE69102119T2 (en)
ES (1) ES2054421T3 (en)
IT (1) IT1244838B (en)
TR (1) TR25719A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0965801A2 (en) * 1998-06-10 1999-12-22 De' Longhi S.P.A. Independently operating and mobile radiator and process for its manufacture
EP0867667A3 (en) * 1997-03-21 2000-05-10 Laminox - S.r.l. Oil radiator equipped with heat exchanger for the production of hot water
ES2276567A1 (en) * 2004-11-26 2007-06-16 Investigacion Y Desarrollo Electrico Asturiano, S.L. Heating apparatus
WO2020010805A1 (en) * 2018-07-13 2020-01-16 珠海格力电器股份有限公司 Radiating fin and heater

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1308708B1 (en) * 1999-02-17 2002-01-10 De Longhi Spa INDEPENDENT OPERATING MOBILE TYPE RADIATOR
CN102338414A (en) * 2011-10-28 2012-02-01 岑峰 Heating body of oil heating air heater
CN105757772B (en) * 2016-03-02 2018-09-28 宁波发时达电器科技有限公司 A kind of efficient warm wind oil heater of quick-heating type
CN106969405A (en) * 2017-04-21 2017-07-21 张金龙 Intelligent electric-heating air conditioner type heating piece

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7040946U (en) * Eos-Elektrogeraetewerk W Guenther Kg Electric radiator
DE6906398U (en) * 1969-02-17 1969-07-03 Record Winkelstraeter Gmbh Fa RADIATOR
DE3915932A1 (en) * 1989-05-16 1990-11-22 Thermotechnik Dipl Ing Ludwig Convection heater with humidifier for room air conditioning - has electric heating elements and water evaporator respectively above and below ventilating fan in upright panel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4948947A (en) * 1988-07-26 1990-08-14 Pacific Steam Equipment, Inc. Steam boiler
US4937930A (en) * 1989-10-05 1990-07-03 International Business Machines Corporation Method for forming a defect-free surface on a porous ceramic substrate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7040946U (en) * Eos-Elektrogeraetewerk W Guenther Kg Electric radiator
DE6906398U (en) * 1969-02-17 1969-07-03 Record Winkelstraeter Gmbh Fa RADIATOR
DE3915932A1 (en) * 1989-05-16 1990-11-22 Thermotechnik Dipl Ing Ludwig Convection heater with humidifier for room air conditioning - has electric heating elements and water evaporator respectively above and below ventilating fan in upright panel

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0867667A3 (en) * 1997-03-21 2000-05-10 Laminox - S.r.l. Oil radiator equipped with heat exchanger for the production of hot water
EP0965801A2 (en) * 1998-06-10 1999-12-22 De' Longhi S.P.A. Independently operating and mobile radiator and process for its manufacture
EP0965801A3 (en) * 1998-06-10 2000-12-27 De' Longhi S.P.A. Independently operating and mobile radiator and process for its manufacture
ES2276567A1 (en) * 2004-11-26 2007-06-16 Investigacion Y Desarrollo Electrico Asturiano, S.L. Heating apparatus
ES2276567B1 (en) * 2004-11-26 2008-05-16 Investigacion Y Desarrollo Electrico Asturiano, S.L. HEATING DEVICE.
WO2020010805A1 (en) * 2018-07-13 2020-01-16 珠海格力电器股份有限公司 Radiating fin and heater

Also Published As

Publication number Publication date
IT1244838B (en) 1994-09-06
IT9021844A1 (en) 1992-04-23
AU8671091A (en) 1992-04-30
DE69102119D1 (en) 1994-06-30
AU644907B2 (en) 1993-12-23
ES2054421T3 (en) 1994-08-01
KR920008430A (en) 1992-05-28
JPH04281157A (en) 1992-10-06
DE69102119T2 (en) 1994-09-01
IT9021844A0 (en) 1990-10-23
TR25719A (en) 1993-09-01
EP0482494B1 (en) 1994-05-25

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