EP0620405A1 - Dispositif pour évacuer des fumées, en particulier dans les cheminées et dans les cheminées d'appartement - Google Patents

Dispositif pour évacuer des fumées, en particulier dans les cheminées et dans les cheminées d'appartement Download PDF

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Publication number
EP0620405A1
EP0620405A1 EP94830137A EP94830137A EP0620405A1 EP 0620405 A1 EP0620405 A1 EP 0620405A1 EP 94830137 A EP94830137 A EP 94830137A EP 94830137 A EP94830137 A EP 94830137A EP 0620405 A1 EP0620405 A1 EP 0620405A1
Authority
EP
European Patent Office
Prior art keywords
hood
conveying
heat
fumes
conveying channels
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
EP94830137A
Other languages
German (de)
English (en)
Other versions
EP0620405B1 (fr
Inventor
Gianluca Della Rocca
Gianfranco Della Rocca
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.)
Individual
Original Assignee
Individual
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
Priority claimed from ITMI930639A external-priority patent/IT1263869B/it
Priority claimed from ITMI930638A external-priority patent/IT1263868B/it
Application filed by Individual filed Critical Individual
Priority to EP96119347A priority Critical patent/EP0783090B1/fr
Publication of EP0620405A1 publication Critical patent/EP0620405A1/fr
Application granted granted Critical
Publication of EP0620405B1 publication Critical patent/EP0620405B1/fr
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
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00—Stoves or ranges
    • F24B1/18—Stoves with open fires, e.g. fireplaces
    • F24B1/183—Stoves with open fires, e.g. fireplaces with additional provisions for heating water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00—Stoves or ranges
    • F24B1/18—Stoves with open fires, e.g. fireplaces
    • F24B1/185—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion
    • F24B1/188—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by use of heat exchange means , e.g. using a particular heat exchange medium, e.g. oil, gas  
    • F24B1/1885—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by use of heat exchange means , e.g. using a particular heat exchange medium, e.g. oil, gas   the heat exchange medium being air only

Definitions

  • the present invention relates to a fume-exhausting apparatus, in particular for chimneys and fireplaces, said chimneys and fireplaces comprising a hearth and a hood for collecting said fumes to be sent to a flue.
  • the technical task underlying the present invention is to provide a fume-exhausting apparatus, in particular for chimneys and fireplaces, capable of substantially eliminating the above drawbacks.
  • a fume-exhausting apparatus in particular for chimneys and fireplaces, which is characterized in that it comprises a plurality of channels for conveying said fumes, which conveying channels have lower openings directed downwardly close to the lower inlet mouth of said hood and upper openings directed upwardly and communicating with the lower end of the flue.
  • the fume-exhausting apparatus according to the invention has been generally identified by reference numeral 1.
  • the apparatus 1 is adapted to be fitted in a chimney or fireplace of a conventional type known per se comprising a hearth 2, a hood 3 for collecting the fumes produced on the heart, and a flue 4. It comprises a plurality of channels 5 for conveying fumes, located above the hearth and therefore extending within the hood 3.
  • the conveying channels 5 exhibit lower openings 5a directed downwardly, disposed close to, or at all events communicating with, the lower inlet mouth 3a of the hood 3, and upper openings 5b directed upwardly and disposed close to a lower end 4a of the flue 4, so that they are affected by a draught effect created thereinto.
  • the transverse section of the conveying channels 5 has an area corresponding at least to the area of the transverse section of the flue and preferably greater than the latter by 50%.
  • the conveying channels 5 for example defined hy lengths of rectilinear pipes having a circular section, are disposed in mutual side by side relation to form a bundle and converge close to the upper portion 3b of the hood 3, so that they substantially occupy, at least close to the upper openings thereof 5b, the whole transverse section of the hood 3, apart from the gaps present between the pipes as a result of their circular section.
  • one main conveying channel or pipe 5c is provided which is disposed centrally substantially above the flame present in the hearth 2, as well as a plurality of auxiliary conveying channels or pipes 5d disposed perimetrically and each of them having a transverse section the area of which is lower than that of the trasverse section of the main pipe 5c.
  • this lower plate-like closing element 6a all fumes produced in the hearth 3 are forced to go up to the flue 4 exclusively through the conveying channels 5.
  • an upper plate-like closing element 6b is also provided which is disposed close to the upper portion 3b of the hood 7.
  • the upper plate-like element 6b is also provided with through holes adapted to sealingly engage the upper end portions of the conveying channels 5 and also has a perimetric shaped edge the shape of which is adapted to mate the inner sizes of the hood 3.
  • the lower and upper plate-like closing elements, 6a and 6b substantially define, in cooperation with the hood 3, a heat-exchange sealed chamber with respect to the fumes. crossed by the conveying channels 5 themselves.
  • Suitable air intake 7 formed in the hood 3 for admitting cold air from the surrounding atmosphere and emitting hot air thereinto enable a forced air circulation to be created, optionally with the aid of ventilation means, which air passing through the gaps present between the conveying channels 5 can be heated by the heat transmitted from the fumes.
  • the conveying channels 5 are disposed in mutual side by side relation and in alignment with each other and they occupy the hood volume, and therefore the transverse hood section, only partially.
  • the conveying channels 5 in this embodiment exhibit their lower openings 5a disposed in alignment along the front side of the lower inlet mouth 3a of the hood 3, so as to define a suction area extending along the whole extension of said side.
  • the conveying channels 5 are integral with each other and consist of a unitary body 8, being divided by partitions 8a.
  • Such unitary body 8 can be easily engaged within an already installed hood in order to improve performance of same in drawing fumes.
  • the upper openings 5b of the conveying channels 5 defined by the partitions 8a open into an interconnecting pipeline 9 at differentiated heights in order not to hinder the respective smoke flows.
  • the upper ends 5b of the conveying channels 5 located at the laterally opposite ends of the unitary body 8 communicate with the upper portion of the interconnecting pipeline 9 by two tubular headers 20 exhibiting end portions 20a adapted to be laterally fitted in the interconnecting pipeline as they bend according to the progress direction of the fumes along said pipeline.
  • a draught duct 10 connected in succession to the interconnecting pipeline 9 is a draught duct 10 having an extension enabling one upper end thereof 10a to be directly located in the flue 4.
  • a draught duct 10 having an extension enabling one upper end thereof 10a to be directly located in the flue 4.
  • each conveying channel 5 may be divided, as shown in Fig. 2, into a lower movable portion "A” and an upper fixed portion "B", capable of telescopically sliding into each other.
  • Suitable support and movement means for the lower portions enable said portions to be positioned at variable heights above the hearth and in particular by virtue of said means the lower openings 5a of the conveying channels 5 can be lowered directly close to the fume production region.
  • an auxiliary conveying hood 11 may be associated with the lower portions "A" of the conveying channels 5, at the lower ends 5a thereof.
  • the conveying channels 5 enable the whole fume flow to be divided into partial flows, each of which exhibits a reduced vorticity and greater upward kinetic energy.
  • the apparatus in question enables the so-called draught effect created within the flue to be moved much closer to the flame or, in other words, to the real fume-producing area, thereby enabling said fumes to be drawn upwardly in stronger manner.
  • the results of said draught effect have been practically zero at distances ranging between and 20 and 30 cm from the lower end of the flue itself.
  • a suction area extending along the front edge of the hearth is created so as to form a barrier against the emission of fumes towards the room where the fireplace is located.
  • the last-mentioned embodiment of the apparatus makes it possible to intervene on alreadv installed fireplaces with ease, because the apparatus can be readily fitted into a hood and engaged to the front wall thereof. Therefore the apparatus of the invention is capable of making a fireplace flue work properly even if it has an inefficient draught as a result of an imperfect design and/or construction, or at all events is capable of improving performace of a fireplace even under the most unfavourable circumstances.
  • FIG. 5 An alternative version of the apparatus in question has been shown in Fig, 5 and identified by reference numeral 100.
  • the optimal draught achieved by exploiting the innovatory technical principles disclosed above and illustrated with reference to Figs. 1 to 4 is herein utilized in order to obtain an important heat recovery from the fumes, without the consequent cooling of said fumes giving rise to operating inconveniences as regards the chimney draught.
  • the apparatus 100 has a main heat-recovery section 102 disposed uppermost relative to a hood 103, in turn disposed over a hearth 104 in a chimney or fireplace.
  • the main section 102 internally comprises a plurality of conveying channels or main pipe coils 105 (only two of which are shown) adapted to receive and convey the fumes directed to the hood 103, thereby dividing the overall flow of said fumes into a plurality of partial flows.
  • auxiliary straight pipes 105a may be disposed alongside the main pipe coils 105 for the purpose of increasing the overall fume-passage section.
  • the main section 102 further comprises a main heat-exchange chamber 106 adapted to hold a circulating fluid to be heated. Said fluid may advantageously consist of water coming from a heating plant, through an admission duct 115 shown diagrammatically.
  • the pipe coils 105 and optional auxiliary straight pipes 105a, as well as the main chamber 106, have their major extension running in a substantially vertical direction. All fumes produced by the flame are therefore conveyed vertically upwardly by the pipe coils 105 and auxiliary straight pipes 105a if present.
  • a preheating section 107 for the fluid to be heated is provided upstream of the main section 102, that is close to the hearth 104.
  • Said preheating section 107 is comprised for example of a heat exchanger of the traditional type, capable of directly utilizing heat transmitted from the flame by radiation in order to obtain a preheating of the water introduced therein from the admission duct 115.
  • the preheating section 107 located in the rear wall of the hearth for example, communicates with the main heat-exchange chamber 106 through one tubular connecting length 115a, shown in dotted line.
  • An additional section 108 for recovery of heat from the fumes advantageously follows the main section 102 and has the same structure as the main section 102. Therefore it comprises a plurality of additional pipe shown), adapted to convey the fumes from the main section 102.
  • the additional pipe coils 109 extend longitudinally within an aditional heat-exchange chamber 110 into which the circulating fluid coming from the main chamber 106 and already partly heated due to its passing through said main chamber, is conveyed.
  • the additional chamber 110 and additional pipe coils 109 disposed for example close to the ceiling of the room where the fireplace is installed, have their major extension substantially running in a horizontal direction.
  • the movement direction of the fumes, now already partly cooled, is oriented horizontally.
  • an interconnection chamber 111 Provided between the main section 102 and additional section 108 is an interconnection chamber 111 towards which all fumes from the main pipe coils 105 and auxiliary pipes 105a of the main section itself are directed. Said fumes are then admitted to the additional pipe coils 109 of the additional section 108.
  • the interconnection chamber 11 may be provided to advantage with an inspection door 111a for cleaning pipes 105, 105a, 109.
  • the additional section 108 is followed by a further heat-recovery structure.
  • Said structure comprises a duct 112 for collecting and conveying the fumes from the additional section 108 itself and a pipe coil 113 into which the water coming out of the additional heat-exchange chamber 110 flows.
  • the pipe coil 113 and duct 112 preferably have their major extension running in a substantially horizontal direction.
  • Extending from the pipe coil 113 is a delivery pipe length 115c through which the water heated to a high temperature is admitted again into the heating plant or other appliance for use.
  • the fume collecting and conveying duct 112 may communicate with the external atmosphere via a subsequent flue.
  • the main chamber 106 is 120 cm high and has a 40x30 cm rectangular section. Located inside said main chamber are four main pipe coils 105 with a diameter of 9 cm, said coils exhibiting each five 180° bends and two 90° half-bends at the ends, as well as four auxiliary straight pipes 105a with a diameter of 3.5 cm.
  • the additional section 108 extends over a length of 65 cm and has 30x25 cm rectangular section. Located inside said additional section are four pipe coils 109 with a diameter of 6 cm, said pipe coils exhibiting each three 180° bends and two 90° half-bends at the ends, as well as three auxiliary straight pipes 105a with a diameter of 3.5 cm.
  • the final duct 112 is 1 m long and has a diameter of 22 cm, whereas the pipe coil 113 has an inner diameter of 2.5 cm and has a rectilinear extension of 20 m.
  • the final duct 112 communicates with the external atmosphere through a flue extending in a substantially horizontal direction.
  • main pipe coils 105 and optional auxiliary straight pipes 105a enables the overall flow of the fumes to be divided into partial flows which are less subjected to vorticity so that the fume drawing action at the fireplace hood 103 can be increased to a great extent.
  • the fume conveying pipes 105, 105a, 109 can have an important extension and therefore offer a large heat-exchange surface enabling an important amount of heat to be transmitted from the fumes to the fluid to be heated.
  • the increased draught effect offered by the inventive apparatus enables lowering in the fume temperature to be compensated for, so that the heat produced by said fumes can be widely recovered for heating forced-circulation water or air.
  • the movement of the fumes in a horizontal direction beyond the main heat-recoverv section 102 eliminates the risk that the cooled fumes, due to the fact that they are thicker than the new coming fumes, may descend along the hood, thereby impairing a good chimney draught.

Landscapes

  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Ventilation (AREA)
  • Prevention Of Fouling (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Glass Compositions (AREA)
  • Catalysts (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
EP94830137A 1993-03-31 1994-03-23 Dispositif pour évacuer des fumées, en particulier dans les cheminées et dans les cheminées d'appartement Expired - Lifetime EP0620405B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96119347A EP0783090B1 (fr) 1993-03-31 1994-03-23 Dispositif pour évacuer des fumées, en particulier dans les cheminées et dans les cheminées d'appartement

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ITMI930639 1993-03-31
ITMI930639A IT1263869B (it) 1993-03-31 1993-03-31 Dispositivo di aspirazione di fumi, particolarmente per camini e caminetti
ITMI930638A IT1263868B (it) 1993-03-31 1993-03-31 Dispositivo di recupero calore per camini, caminetti e simili, particolarmente per la generazione di fluidi caldi
ITMI930638 1993-03-31

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP96119347A Division EP0783090B1 (fr) 1993-03-31 1994-03-23 Dispositif pour évacuer des fumées, en particulier dans les cheminées et dans les cheminées d'appartement
EP96119347.1 Division-Into 1996-12-03

Publications (2)

Publication Number Publication Date
EP0620405A1 true EP0620405A1 (fr) 1994-10-19
EP0620405B1 EP0620405B1 (fr) 1997-08-06

Family

ID=26330969

Family Applications (2)

Application Number Title Priority Date Filing Date
EP96119347A Expired - Lifetime EP0783090B1 (fr) 1993-03-31 1994-03-23 Dispositif pour évacuer des fumées, en particulier dans les cheminées et dans les cheminées d'appartement
EP94830137A Expired - Lifetime EP0620405B1 (fr) 1993-03-31 1994-03-23 Dispositif pour évacuer des fumées, en particulier dans les cheminées et dans les cheminées d'appartement

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP96119347A Expired - Lifetime EP0783090B1 (fr) 1993-03-31 1994-03-23 Dispositif pour évacuer des fumées, en particulier dans les cheminées et dans les cheminées d'appartement

Country Status (4)

Country Link
EP (2) EP0783090B1 (fr)
AT (2) ATE189514T1 (fr)
DE (2) DE69422934T2 (fr)
DK (1) DK0620405T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0757208A1 (fr) 1995-07-27 1997-02-05 Gianluca Della Rocca Dispositif pour favoriser le tirage, en particulier pour des chéminées, des foyers de cheminée ou similaires
CN108444106A (zh) * 2018-04-25 2018-08-24 大连恒通和科技有限公司 锅炉用冷凝系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104896517B (zh) * 2015-05-26 2017-05-10 德清赛众换热器制造有限公司 一种生物燃料壁炉

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2277381A (en) * 1940-06-10 1942-03-24 Murray J Black Heating system
FR2294403A1 (fr) * 1974-12-12 1976-07-09 Lambert Jean Atre-chaudiere combinant le chauffage au bois et la ventilation mecanique controlee double flux
US4100913A (en) * 1974-10-29 1978-07-18 Armstrong Ernest Deloy Fireplace heating system
FR2467358A1 (fr) * 1979-10-11 1981-04-17 Jost Edouard Dispositif de recuperation de chaleur pour cheminees a feu ouvert et poeles a bois
FR2510725A1 (fr) * 1981-02-26 1983-02-04 Vergnes Jacques Dispositif pour recuperer la chaleur notamment dans un atre

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470928A1 (fr) * 1979-12-04 1981-06-12 Bonnin Jean Pierre Cheminee d'agrement et de chauffage central

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2277381A (en) * 1940-06-10 1942-03-24 Murray J Black Heating system
US4100913A (en) * 1974-10-29 1978-07-18 Armstrong Ernest Deloy Fireplace heating system
FR2294403A1 (fr) * 1974-12-12 1976-07-09 Lambert Jean Atre-chaudiere combinant le chauffage au bois et la ventilation mecanique controlee double flux
FR2467358A1 (fr) * 1979-10-11 1981-04-17 Jost Edouard Dispositif de recuperation de chaleur pour cheminees a feu ouvert et poeles a bois
FR2510725A1 (fr) * 1981-02-26 1983-02-04 Vergnes Jacques Dispositif pour recuperer la chaleur notamment dans un atre

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0757208A1 (fr) 1995-07-27 1997-02-05 Gianluca Della Rocca Dispositif pour favoriser le tirage, en particulier pour des chéminées, des foyers de cheminée ou similaires
CN108444106A (zh) * 2018-04-25 2018-08-24 大连恒通和科技有限公司 锅炉用冷凝系统

Also Published As

Publication number Publication date
DE69422934T2 (de) 2000-08-17
EP0620405B1 (fr) 1997-08-06
ATE189514T1 (de) 2000-02-15
DK0620405T3 (da) 1998-02-23
DE69404723T2 (de) 1998-02-05
EP0783090A2 (fr) 1997-07-09
EP0783090A3 (fr) 1998-12-02
DE69404723D1 (de) 1997-09-11
ATE156581T1 (de) 1997-08-15
EP0783090B1 (fr) 2000-02-02
DE69422934D1 (de) 2000-03-09

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