EP0214087A1 - Chapeau de cheminée pour contrôler le tirage d'une cheminée - Google Patents

Chapeau de cheminée pour contrôler le tirage d'une cheminée Download PDF

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Publication number
EP0214087A1
EP0214087A1 EP86810122A EP86810122A EP0214087A1 EP 0214087 A1 EP0214087 A1 EP 0214087A1 EP 86810122 A EP86810122 A EP 86810122A EP 86810122 A EP86810122 A EP 86810122A EP 0214087 A1 EP0214087 A1 EP 0214087A1
Authority
EP
European Patent Office
Prior art keywords
deflector
chimney
hood according
chimney hood
deflectors
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
EP86810122A
Other languages
German (de)
English (en)
Other versions
EP0214087B2 (fr
EP0214087B1 (fr
Inventor
Anthony Neefs
Hans Jörg Weidmann
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.)
Roweco
Original Assignee
Roweco
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 BE0/215453A external-priority patent/BE903043A/nl
Application filed by Roweco filed Critical Roweco
Priority to AT86810122T priority Critical patent/ATE39020T1/de
Publication of EP0214087A1 publication Critical patent/EP0214087A1/fr
Application granted granted Critical
Publication of EP0214087B1 publication Critical patent/EP0214087B1/fr
Publication of EP0214087B2 publication Critical patent/EP0214087B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/08—Tops for chimneys or ventilating shafts; Terminals for flues with coaxial cones or louvres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/12—Devices for fastening the top or terminal to chimney, shaft, or flue

Definitions

  • the present invention relates to a chimney hood for monitoring the draft in a chimney pipe, in particular a chimney, a deflector which has a central opening and then a downwardly inclined surface, and that a second, completely closed deflector is provided above the first-mentioned deflector which completely covers at least the central opening of the first deflector.
  • a chimney hood of the type mentioned initially shows, for example, CH-PS 638'288 (Mitchell).
  • This known solution shows between the first and second deflectors a plurality of lamellae which, like the two deflectors, each have a central opening are.
  • a circular deflector element is arranged, which consists of two conical sheets facing each other, which works according to the Venturi principle and accelerates the wind blowing through, which creates a vacuum in the chimney pipe, which increases the draft of the chimney pipe.
  • the chimney hood shown in the figure mainly comprises two deflectors 1 and 2 mounted one above the other at a certain distance, which are fastened to a chimney 4 by means of fastening and support members 3.30. Both deflectors have a circular outer edge 5, the deflector 1 below having a central, likewise circular opening 6. The diameter of this central opening 6 is preferably in the order of magnitude between 38 and 45% of the outer diameter of the deflector 1. The outer diameter is dimensioned such that it slightly projects beyond the outer parapet edge of the fireplace.
  • the deflector 2 which is mounted coaxially at a certain distance above the deflector 1, is completely closed, which means that it has no central opening. Otherwise, the surface shape 7 of both deflectors is approximately identical. More precisely, in this special embodiment the surface 7 of both deflectors 1 and 2 is concave in the area of its outer edge 5 and changes into a convex shape in the direction towards the center.
  • a constriction 8 is provided between the two deflectors 1 and 2, close enough above the central opening 6 of the deflector 1 below, so that the gases rising through the opening 6, as indicated by the arrow 9, accelerate when leaving the Experience opening.
  • this constriction 8 is determined by a guide plate 10 provided centrally under the second deflector 2 mentioned, which extends over the central opening 6 and has an approximately spherical side 11 directed towards the opening. Consequently, the baffle in cooperation with the surface 7 of the deflector 1 causes a venturi effect. That mounted on the underside of the second deflector 2 Baffle plate 10 forms a cavity 12 with it. The curved part of baffle plate 10 extends over the central opening 6 of the deflector 1 to its inner edge 13. This creates an annular, dome-like vault 14 under the second deflector 2.
  • the entire construction of the chimney hood is designed so that it can be fully assembled or disassembled with just a few screws without a weld.
  • the deflectors 1 and 2, as well as the guide plate 10, which have ring-shaped regions running in an approximately horizontal plane, are provided with corresponding through holes arranged one above the other.
  • plastic screws 15 which lead through the above-mentioned through holes, the two parts are firmly screwed together on plastic spacers 16, which are provided with corresponding threads.
  • the spacer bolts 16 stand near the inner edge 13 of the lower deflector 1 thereon and define the desired distance between the two deflectors 1 and 2.
  • support members 17 are arranged which run exactly under the spacer bolts 16.
  • the support members 17 are also provided with through holes that correspond to the through holes in the lower deflector 1 in the mounting position. Again with plastic screws 18, the support members 17 are screwed together with the deflector 1 to the spacer bolts 16.
  • the support members 3 are in the form of support brackets made from material cut into a shape that has a double bend in the edge region 5 of the lower deflector 1.
  • the support surface 19 of the support bracket 17 can be provided with a pre-pressed bow point so that the support distance between the edge of the chimney and the outer edge 5 of the lower deflector 1 can be adjusted in height.
  • the shaped as a support bracket 17 have an arm 20 which protrude from the inner edge 13 of the central opening of the first deflector 1 in the assembled state down into the chimney.
  • the lower ends of the arms 20, the support members 17 are interconnected by fastening members 30.
  • the fastening members 30 consist of a ring 31 and patinated screws 32 which pass through the ring 31 and one arm 20 of the support members 17.
  • the screws 32 are secured by means of screw sleeves 33 held in the arms 20.
  • the length of the spacer bolts define the distance between the upper and lower deflectors. Depending on the size of the chimney hood, the length of the spacer bolts 16 must be adjusted. If the distance between the deflectors is too large, the desired effect flattens out; if the distance between the deflectors 1 and 2 is too small, the backflow becomes too large.
  • the length of the spacer bolts 16 should be between 20 and 45% of the size of the diameter of the opening 6. Optimal values were achieved with a length of the spacer bolts of approximately 30% of the diameter of the opening 6.
  • the turbulence T thus prevents the entry of wind and thus stops the venturi effect. In this way, the escape of the heated gases from the chimney 4 is delayed and thus unnecessary heat loss is slowed down.
  • the existing thermals in the chimney mean that enough gases can still rise from the chimney. The stopped suction effect, however, reduces the fire in the furnace, which can save heating energy.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chimneys And Flues (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
EP86810122A 1985-08-09 1986-03-12 Chapeau de cheminée pour contrôler le tirage d'une cheminée Expired - Lifetime EP0214087B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86810122T ATE39020T1 (de) 1985-08-09 1986-03-12 Kaminhaube zur ueberwachung des zuges in einem kaminrohr.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE215453 1985-08-09
BE0/215453A BE903043A (nl) 1985-08-09 1985-08-09 Schoorsteenkap voor het onder controle houden van de trek in gasafvoerkanalen.

Publications (3)

Publication Number Publication Date
EP0214087A1 true EP0214087A1 (fr) 1987-03-11
EP0214087B1 EP0214087B1 (fr) 1988-11-30
EP0214087B2 EP0214087B2 (fr) 1993-01-27

Family

ID=3843918

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86810122A Expired - Lifetime EP0214087B2 (fr) 1985-08-09 1986-03-12 Chapeau de cheminée pour contrôler le tirage d'une cheminée

Country Status (3)

Country Link
EP (1) EP0214087B2 (fr)
AT (1) ATE39020T1 (fr)
DE (1) DE3661333D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303202A (en) * 1995-07-12 1997-02-12 Robert Hodgson Cowl
EP0753703A3 (fr) * 1995-07-12 1998-06-17 Robert Hodgson Chapeau de cheminée
FR2846073A1 (fr) 2002-10-21 2004-04-23 Michel Zaniewski Extracteur statique antireflueur pour fumees
WO2005071318A1 (fr) * 2004-01-22 2005-08-04 Novatex Perfekt S.R.O. Tete de cheminee, destinee en particulier a l'evacuation de gaz de combustion
EP2933558A1 (fr) 2014-04-16 2015-10-21 WeLiPa AG Déflecteur d'air et système de déflecteur d'air
CN109114578A (zh) * 2018-10-25 2019-01-01 泰山学院 一种防止烟气倒灌并可促进室内外空气交换的烟囱罩

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1088908A (en) * 1964-12-03 1967-10-25 Gulf Oil Corp Venting apparatus
CH552176A (fr) * 1972-05-01 1974-07-31 Pernet Edmond Cape de cheminee.
BE903043A (nl) * 1985-08-09 1985-12-02 Weidmann Rosemarie Schoorsteenkap voor het onder controle houden van de trek in gasafvoerkanalen.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1088908A (en) * 1964-12-03 1967-10-25 Gulf Oil Corp Venting apparatus
CH552176A (fr) * 1972-05-01 1974-07-31 Pernet Edmond Cape de cheminee.
BE903043A (nl) * 1985-08-09 1985-12-02 Weidmann Rosemarie Schoorsteenkap voor het onder controle houden van de trek in gasafvoerkanalen.

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303202A (en) * 1995-07-12 1997-02-12 Robert Hodgson Cowl
EP0753703A3 (fr) * 1995-07-12 1998-06-17 Robert Hodgson Chapeau de cheminée
GB2303202B (en) * 1995-07-12 2000-01-26 Robert Hodgson Cowl
FR2846073A1 (fr) 2002-10-21 2004-04-23 Michel Zaniewski Extracteur statique antireflueur pour fumees
EP1413827A1 (fr) * 2002-10-21 2004-04-28 Michel Zaniewski Extracteur statique antireflueur pour fumées
WO2005071318A1 (fr) * 2004-01-22 2005-08-04 Novatex Perfekt S.R.O. Tete de cheminee, destinee en particulier a l'evacuation de gaz de combustion
EP2933558A1 (fr) 2014-04-16 2015-10-21 WeLiPa AG Déflecteur d'air et système de déflecteur d'air
CN109114578A (zh) * 2018-10-25 2019-01-01 泰山学院 一种防止烟气倒灌并可促进室内外空气交换的烟囱罩
CN109114578B (zh) * 2018-10-25 2024-02-27 泰山学院 一种防止烟气倒灌并可促进室内外空气交换的烟囱罩

Also Published As

Publication number Publication date
DE3661333D1 (en) 1989-01-05
ATE39020T1 (de) 1988-12-15
EP0214087B2 (fr) 1993-01-27
EP0214087B1 (fr) 1988-11-30

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