EP0647819B1 - Appareil pour chauffer des espaces clos - Google Patents

Appareil pour chauffer des espaces clos Download PDF

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Publication number
EP0647819B1
EP0647819B1 EP94115945A EP94115945A EP0647819B1 EP 0647819 B1 EP0647819 B1 EP 0647819B1 EP 94115945 A EP94115945 A EP 94115945A EP 94115945 A EP94115945 A EP 94115945A EP 0647819 B1 EP0647819 B1 EP 0647819B1
Authority
EP
European Patent Office
Prior art keywords
burner
fan
flame
pipeline
heating
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.)
Expired - Lifetime
Application number
EP94115945A
Other languages
German (de)
English (en)
Other versions
EP0647819A1 (fr
Inventor
Gimmi Fraccaro
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.)
Officine Termotecniche Fraccaro O T F Srl
Original Assignee
Officine Termotecniche Fraccaro O T F Srl
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Publication date
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Application filed by Officine Termotecniche Fraccaro O T F Srl filed Critical Officine Termotecniche Fraccaro O T F Srl
Publication of EP0647819A1 publication Critical patent/EP0647819A1/fr
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Anticipated expiration legal-status Critical
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Classifications

    • 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
    • F24D5/00—Hot-air central heating systems; Exhaust gas central heating systems
    • F24D5/06—Hot-air central heating systems; Exhaust gas central heating systems operating without discharge of hot air into the space or area to be heated
    • F24D5/08—Hot-air central heating systems; Exhaust gas central heating systems operating without discharge of hot air into the space or area to be heated with hot air led through radiators

Definitions

  • the present invention relates to a device for heating enclosed spaces, such as aircraft hangars, theaters, movie theaters, high-rise warehouses, and buildings used for commerce, industry and handicraft, which are usually tall and have large surface areas.
  • Systems are known for this purpose that comprise a closed circuit composed of multiple pipelines which are arranged approximately at the roof or ceiling of the enclosed space; warm air is circulated inside these pipelines.
  • the heating effect is achieved by radiation from the surface of said pipelines towards the floor by suitable insulating reflecting screens.
  • a system of this type is described in Italian patent no. 1,037,880 and GB-A-1 448 073, which includes a burner located directly at the pipeline and a fan for feeding the gaseous heating medium through the pipeline; the fan is located upstream or downstream of the burner.
  • the burner is of the blast type and is inserted at the pipeline, which has the configuration of a closed loop.
  • An aim of the present invention is therefore to solve the described technical problems, eliminating the drawbacks of the described prior art and thus providing a device that allows to heat enclosed spaces by radiation and has high-level safety characteristics for its users.
  • an important object is to provide a device that has very low manufacturing and maintenance costs.
  • Another object is to provide a device that is simple to set up, has a limited number of moving mechanical parts, and allows the use of personnel that is not particularly trained or qualified.
  • Another object is to provide a device for heating enclosed spaces by radiation which has very low installation costs and is reliable and safe in use.
  • the reference numeral 1 generally designates the heating device for enclosed spaces with any surface extension; said device comprises at least one pipeline, designated by the reference numeral 2, which forms a closed circuit that has the desired configuration according to the dimensions of the enclosed space.
  • the device furthermore comprises an atmospheric multiple-flame Venturi-tube or air-stream burner designated by the reference numeral 3.
  • the device is furthermore constituted by a fan, designated by the reference numeral 4, which is interposed at the pipeline 2 in a region that is adjacent to the burner 3 and is preferably contained together with said burner in a suitable containment element 5 that has an appropriate insulation 6.
  • the fan 4 thus draws the burnt gas and sends it into a suitable chamber 7 arranged laterally to the burner 3; downstream of said burner, the combustion flame gas which contains a certain amount of air drawn from outside and the burnt gas, mix and allow to obtain a high-temperature gaseous fluid without the aid of heat exchangers.
  • a first gate valve 8 for adjusting the air flow-rate is inserted between the fan 4 and the burner 3.
  • the fan 4 furthermore has a second gate valve 9 for adjusting the discharge of fumes at a suitable discharge duct 10.
  • the discharge duct 10 can furthermore be arranged at the fan 4 or between the fan and the burner 3.
  • the suction inlet 13 of the fan 4 is located approximately at the center of the return duct 14.
  • an air-stream burner 3 is used wherein the air and burnt gas mixture is introduced laterally.
  • Air is fed upstream of the fan 4 by means of a third gate valve 15.
  • the dimensions of the device can be limited in this solution, too, by providing the fan and the burner in a single unit.
  • the invention has achieved the intended aim and objects a device having been provided that allows to heat enclosed spaces by radiation with extremely high user safety characteristics, since the pipeline is at negative pressure and thus does not release into the environment any toxic fumes due to accidental leaks or breakages.
  • the described solution can be used to heat a furnace, for example of the tunnel type.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Air Supply (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Electric Stoves And Ranges (AREA)
  • Drying Of Solid Materials (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Gas Burners (AREA)
  • Central Heating Systems (AREA)

Claims (9)

  1. Dispositif pour chauffer des espaces fermés, comprenant au moins un circuit tubulaire fermé (2) qui sert à la répartition de la chaleur, un brûleur (3) pour former une flamme sur le circuit tubulaire (2) pour le chauffage direct d'un fluide de chauffage, et un ventilateur (4) disposé en amont dudit brûleur (3) sur ledit circuit tubulaire pour générer une pression négative dans le circuit tubulaire, ledit fluide de chauffage étant constitué d'un mélange de gaz de combustion et d'air, caractérisé en ce que ledit brûleur (3) est un brûleur à tube de Venturi et à flammes multiples produisant une flamme résultante s'étendant dans un tube de flamme (16) qui entoure latéralement ladite flamme résultante de façon à constituer une chambre (7) dans laquelle le fluide de chauffage est délivré latéralement au tube de flamme (16) et y est mis en circulation, de telle façon que le fluide de chauffage se mélange, à l'aval dudit tube de flamme (16) avec les gaz de combustion et l'air qui est aspiré de l'extérieur du fait de la pression négative créée par ledit ventilateur (4) et par les jets de gaz combustibles pressurisés à l'intérieur dudit brûleur à tube de Venturi et à flammes multiples.
  2. Dispositif selon la revendication 1, caractérisé en ce que ledit brûleur (3) est situé avec ledit ventilateur (4) dans un élément de confinement (5).
  3. Dispositif selon les revendications 1 et 2, caractérisé en ce que ledit élément de confinement (5) comporte une isolation appropriée.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que ladite chambre (7) est une chambre scroll (à tourbillons tangentiels) formée entre ledit tube de flamme (16) et ledit élément de confinement (5).
  5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que ledit circuit tubulaire (2) est disposé à l'extérieur dudit élément de confinement (5) et est relié à une première extrémité à ladite chambre (7) et à une deuxième extrémité à l'entrée d'aspiration dudit ventilateur (4).
  6. Dispositif selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'il comporte une première vanne de passage ou vanne (8) qui est interposée entre ledit ventilateur (4) et ledit brûleur (3) et une deuxième vanne de passage ou vanne (9) qui est reliée à une tubulure de décharge (10).
  7. Dispositif selon la revendication 6, caractérisé en ce que ledit tube de décharge (10) est situé sur ledit ventilateur (4) ou bien entre ledit brûleur (3) et ledit ventilateur (4).
  8. Dispositif selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que ledit ventilateur (4) comporte une entrée d'aspiration (13) située approximativement au centre dudit circuit tubulaire (2).
  9. Dispositif selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que ledit brûleur (3) comporte un organe de préchauffage pour réchauffer l'air de combustion, de manière à augmenter le rendement thermique.
EP94115945A 1993-10-11 1994-10-10 Appareil pour chauffer des espaces clos Expired - Lifetime EP0647819B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTV930092 1993-10-11
IT93TV000092A IT1266128B1 (it) 1993-10-11 1993-10-11 Dispositivo per il riscaldamento di locali

Publications (2)

Publication Number Publication Date
EP0647819A1 EP0647819A1 (fr) 1995-04-12
EP0647819B1 true EP0647819B1 (fr) 2000-01-26

Family

ID=11419312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94115945A Expired - Lifetime EP0647819B1 (fr) 1993-10-11 1994-10-10 Appareil pour chauffer des espaces clos

Country Status (5)

Country Link
EP (1) EP0647819B1 (fr)
AT (1) ATE189302T1 (fr)
DE (1) DE69422769T2 (fr)
ES (1) ES2144025T3 (fr)
IT (1) IT1266128B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011036645A1 (fr) 2009-09-25 2011-03-31 Officine Termotecniche Fraccaro S.R.L. Dispositif haute performance de chauffage de locaux et système de chauffage comprenant ledit dispositif

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1001129C2 (nl) * 1995-09-04 1997-03-05 Mark B V Verwarmingsinrichting met buisstraler.
FR2874419B1 (fr) * 2004-08-17 2006-10-06 Lgl France Sa Dispositif de chauffage pour une installation de conditionnement d'air d'une enceinte
ITPD20050133A1 (it) * 2005-05-11 2006-11-12 Systema Spa Impianto di riscaldamento a tubi radianti
ITTV20050171A1 (it) 2005-11-08 2007-05-09 Termotecniche Fraccaro O T F S Dispositivo per il riscaldamento, la produzione di energia elettrica ed il raffrescamento di locali.
GB2443642A (en) * 2006-11-10 2008-05-14 Whiteside Accoutants Hot air radiator comprising an air extracting machine
EP3056809A1 (fr) 2015-02-12 2016-08-17 Carlieuklima S.p.A. Installation de chauffage à conduites rayonnantes
IT201600084075A1 (it) * 2016-08-09 2018-02-09 Carlieuklima S R L Impianto di riscaldamento a condotti radianti
IT201600125754A1 (it) * 2016-12-13 2018-06-13 Impresind S R L Impianto radiante autoproduttore di energia elettrica

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2339134A1 (fr) * 1976-01-20 1977-08-19 Lecomte Robert Bruleur a gaz a rampes de flammes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR606020A (fr) * 1924-11-13 1926-06-05 J & O G Pierson Perfectionnement au chauffage à l'aide de gaz chauds
DE3143602C2 (de) * 1981-11-03 1984-05-10 G + H Montage Gmbh, 6700 Ludwigshafen Strahlungsheizungsanlage mit direkt befeuerter Brennkammer
GB2236406B (en) * 1989-09-12 1993-08-18 Radiant Systems Technology Ltd Radiant heating systems
DE9103004U1 (fr) * 1991-03-15 1991-06-13 Pender Strahlungsheizung Gmbh, 6802 Ladenburg, De

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2339134A1 (fr) * 1976-01-20 1977-08-19 Lecomte Robert Bruleur a gaz a rampes de flammes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011036645A1 (fr) 2009-09-25 2011-03-31 Officine Termotecniche Fraccaro S.R.L. Dispositif haute performance de chauffage de locaux et système de chauffage comprenant ledit dispositif

Also Published As

Publication number Publication date
DE69422769D1 (de) 2000-03-02
ITTV930092A0 (it) 1993-10-11
EP0647819A1 (fr) 1995-04-12
DE69422769T2 (de) 2000-06-29
ATE189302T1 (de) 2000-02-15
IT1266128B1 (it) 1996-12-20
ITTV930092A1 (it) 1995-04-11
ES2144025T3 (es) 2000-06-01

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