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EP0979973B1 - Traversée de mur avec collier empêchant la recirculation - Google Patents

Traversée de mur avec collier empêchant la recirculation Download PDF

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Publication number
EP0979973B1
EP0979973B1 EP19990202542 EP99202542A EP0979973B1 EP 0979973 B1 EP0979973 B1 EP 0979973B1 EP 19990202542 EP19990202542 EP 19990202542 EP 99202542 A EP99202542 A EP 99202542A EP 0979973 B1 EP0979973 B1 EP 0979973B1
Authority
EP
European Patent Office
Prior art keywords
pipe element
wall duct
collar
discharge aperture
pipe
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
EP19990202542
Other languages
German (de)
English (en)
Other versions
EP0979973A1 (fr
Inventor
Jurgen Johannes Jacobus Gerardus Egging
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.)
InterActive Holding BV
Original Assignee
InterActive Holding BV
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 InterActive Holding BV filed Critical InterActive Holding BV
Publication of EP0979973A1 publication Critical patent/EP0979973A1/fr
Application granted granted Critical
Publication of EP0979973B1 publication Critical patent/EP0979973B1/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
    • F23L17/04—Balanced-flue arrangements, i.e. devices which combine air inlet to combustion unit with smoke outlet

Definitions

  • the invention relates to a wall duct, comprising a first pipe element for discharging flue gases, and a second pipe element for supplying air, which second pipe element surrounds the first pipe element along at least part of the length of the latter, an end of the first pipe element forming a discharge aperture, and an end of the second pipe element being provided with a seal through which the first pipe element projects, wherein on its periphery the second pipe element is provided with supply apertures, and wherein the second pipe element is provided with a collar extending from the seal in the longitudinal direction of said second pipe element.
  • a wall duct is known from Dutch Patent 183106.
  • Such wall ducts are used combined with combustion installations, such as heating boilers and the like.
  • combustion installations such as heating boilers and the like.
  • a wall duct By means of such a wall duct it is possible both to supply outside air to the installation and to discharge f lue gases which have been produced from the installation.
  • the problem occurs that waste gases can mix with the outside air and be conveyed back to the installation.
  • recirculation of the flue gases is undesirable. The extent to which recirculation occurs is dependent upon many factors, such as the flow rate of the waste gases, the wind direction and the wind force.
  • One object of the invention is to eliminate the abovementioned and other disadvantages of the prior art and to provide a wall duct which prevents recirculation without increasing the internal resistance.
  • Another object of the invention is to provide a wall duct which is relatively light and of a simple design.
  • a wall duct of the type mentioned in the preamble is characterized in that, for purposes of forming the discharge aperture, the end of the first pipe element is substantially open, and in that the collar does not extend beyond the discharge aperture.
  • the invention is based on the insight that even with a relatively short collar recirculation can be prevented effectively.
  • the wall duct according to the invention is preferably designed in such a way that the collar is provided with an opening for discharging flue gases. By making an opening in the collar, flue gases are prevented from collecting inside the collar and curling around the collar at undesirable points.
  • Recirculation can further be prevented by designing the wall duct in such a way that the second pipe element is provided with supply apertures only on part of its periphery.
  • the wall duct according to the invention is preferably designed in such a way that the supply apertures are disposed on the side of the second pipe element facing away from the opening. This ensures that the flue gases leaving the collar 4 by way of the opening cannot enter the supply apertures.
  • the wall duct according to the invention is advantageously designed in such a way that the first pipe element is disposed eccentrically in the second pipe element, in such a way that the discharge aperture is situated asymmetrically in the seal.
  • the discharge aperture is situated asymmetrically in the seal.
  • a wall duct with a relatively short collar is known per se from JP-62-190320.
  • the end of the first pipe element is not open, but sealed by a conical member, and the wall of the first pipe element is provided with holes for forming a discharge aperture.
  • the wall duct 1 shown only by way of example in fig. 1 extends between an outside A and an inside B of a wall M. On the inside B, the wall duct can be connected to an installation not shown, such as a heating boiler. The end of the wall duct 1 situated on the outside A is in the open air.
  • the wall duct 1 comprises a first pipe element 2 (inner pipe) for discharging flue gases from B to A, and a second pipe element 3 (outer pipe) for supplying air from A to B.
  • first pipe element 2 is situated along the greater part of its length inside the second pipe element 3.
  • the end of the inner pipe 2 is open and forms a discharge aperture 4.
  • the inner pipe 2 is bevelled at this end, as will be explained in greater detail later.
  • a grille 10 is provided in the inner pipe 2 near the discharge aperture 4. The grille 10 prevents leaves, birds and the like from being able to enter the inner pipe 2.
  • the outer pipe 3 is sealed by a cover 5 on this side of the wall duct 1.
  • the inner pipe 2 extends through the cover 5 and is supported by it.
  • supply apertures 6 are provided along at least part of the periphery of said supply pipe.
  • a collar 8 is fitted on the outer pipe 3, in order to prevent flue gases leaving the discharge aperture 4 from being able to enter the outer pipe 3 through the supply apertures 6, and in this way being able to reach the installation (not shown) (recirculation).
  • the outer pipe 3 projects into the collar 8, but the collar 8 could also be formed integrally with the outer pipe 3.
  • the collar 8 is now dimensioned in such a way that it does not extend beyond the discharge aperture 4.
  • the discharge pipe 2 projects beyond the collar 8, so that the discharge aperture 4 is situated outside the space determined by the collar 8.
  • the inner pipe 2 is bevelled in order to form a discharge aperture 4 which also extends some distance in the longitudinal direction of the wall duct, there is no overlap between the collar 8 and the discharge aperture 4.
  • the actual length along which the collar 8 extends is, of course, dependent upon the dimensioning of the wall duct, but it is preferably between 1 and 5 cm, for example approximately 3 cm.
  • an opening 9 is provided on the top side of the collar 8.
  • the opening 9 makes it possible for flue gases present in the space enclosed by the collar to leave said space without going into the vicinity of the supply apertures 6.
  • supply apertures 6 are preferably provided only along part of the periphery.
  • the supply apertures 6 are present solely on the underside of the outer pipe 3, in other words, the side facing away from the opening 9 in the collar 8. In this way it is also ensured that flue gases passing through the opening 9 are prevented from entering the supply apertures 6.
  • the inner pipe 2 is disposed eccentrically relative to the outer pipe 3.
  • the inner pipe 2 on the side B of a wall M is coaxial relative to the outer pipe 3, the axes of said pipes 2, 3 form a small angle relative to each other, with the result that at A the inner pipe 2 lies asymmetrically inside the outer pipe 3.
  • An asymmetrical aperture for the inner pipe 2 to be passed through is therefore provided in the cover 5.
  • the discharge aperture 4 is situated on the top side of the wall duct, i.e. in the vicinity of the opening 9 in the collar 8 and at a distance from the supply apertures 6 in the outer pipe 3. This asymmetrical arrangement therefore contributes to the prevention of recirculation.
  • the front view of the wall duct 1 shown in figure 2 shows the inner pipe 2, the cover 5 and the collar 8, which is fitted on the inner pipe (3 in figure 1).
  • the grille 10 is fitted in the inner pipe 2 at the discharge aperture 4. It is clear that the discharge aperture 4 is situated in the vicinity of the opening 9 in the collar 8 (see figure 3).
  • Figure 3 shows a top view of the collar 8.
  • An opening 9 is provided in the collar 8 for the throughput of waste gases.
  • the opening 9 is of an approximately triangular shape, but other shapes, such as semi-circular, are also possible. It is also possible to replace the opening 9 by a drilled hole, or to provide several openings and/or discharge holes.
  • the opening 9 also makes it possible to fix the cover 5 on the inner pipe 2 by means of a screw or bolt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Ventilation (AREA)

Claims (8)

  1. Traversée de mur (1), comprenant un premier élément de conduite (2) destine à l'évacuation de fumées, et un second élément de conduite (3) destine à l'approvisionnement en air, lequel second élément de conduite (3) entoure le premier élément de conduite (2) sur au moins une partie de la longueur de ce dernier, une extrémité du premier élément de conduite (2) formant une bouche d'évacuation (4), et une extrémité du second élément de conduite (3) comprenant un bouchon (5) à travers lequel le premier élément de conduite (2) fait saillie, dans lequel sur sa périphérie le second élément de conduite (3) est muni de bouches d'approvisionnement (6), et dans lequel le second élément de conduite (3) est muni d'un collier (8) s'étendant depuis le bouchon (5) dans la direction longitudinale dudit second élément de conduite, caractérise en ce que, dans le but de former la bouche d'évacuation (4), l'extrémité du premier élément de conduite (2) est largement ouverte, et en ce que le collier (8) ne s'étend pas au-delà de la bouche d'évacuation (4).
  2. Traversée de mur selon la revendication 1, caractérisée en ce que le collier (8) est muni d'une ouverture (9) destinée à l'évacuation des fumées.
  3. Traversée de mur selon les revendications 1 et 2, caractérisée en ce que le second élément de conduite (3) est muni de bouches d'approvisionnement (6) seulement sur une partie de sa périphérie.
  4. Traversée de mur selon les revendications 2 et 3, caractérisée en ce que les bouches d'approvisionnement (6) se situent sur le côté du second élément de conduite (3) opposé à l'ouverture (9).
  5. Traversée de mur selon l'une des revendications précédentes, caractérisée en ce que le premier élément de conduite (2) est excentré dans le second élément de conduite (3), de telle façon que la bouche d'évacuation (4) est positionnée de manière asymétrique dans le bouchon (5).
  6. Traversée de mur selon les revendications 2 et 5, caracterisée en ce que la bouche d'évacuation (4) est positionnée de manière asymétrique de telle sorte que ladite bouche d'évacuation est située près de l'ouverture (9).
  7. Traversée de mur selon l'une des revendications précédentes, caractérisée en ce que le premier élément de conduite (2) est biseaute du côte de la bouche d'évacuation (4).
  8. Traversée de mur selon l'une des revendications précédentes, caractérisée en ce que une grille (10) est disposée dans le premier clément de conduite (2), aux environs de la bouche d'évacuation (4).
EP19990202542 1998-08-12 1999-08-02 Traversée de mur avec collier empêchant la recirculation Expired - Lifetime EP0979973B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1009852A NL1009852C2 (nl) 1998-08-12 1998-08-12 Muurdoorvoer met recirculatie tegengaande kraag.
NL1009852 1998-08-12

Publications (2)

Publication Number Publication Date
EP0979973A1 EP0979973A1 (fr) 2000-02-16
EP0979973B1 true EP0979973B1 (fr) 2004-01-21

Family

ID=19767643

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990202542 Expired - Lifetime EP0979973B1 (fr) 1998-08-12 1999-08-02 Traversée de mur avec collier empêchant la recirculation

Country Status (3)

Country Link
EP (1) EP0979973B1 (fr)
DE (1) DE69914265D1 (fr)
NL (1) NL1009852C2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1014750C2 (nl) * 2000-03-24 2001-09-25 Muelink & Grol Bv Samenstel van een luchtinlaat- en rookgasuitlaatmondstuk van het horizontale type.
FR2851324B1 (fr) * 2003-02-19 2007-01-12 Participation Gestion Dev Ind Conduit terminal pour conduit de cheminee a double paroi
EP1923632B1 (fr) * 2006-11-14 2016-04-27 M & G Group Europe B.V. Ensemble comportant un bâtiment avec une paroi externe verticale et une système d'admission/d'évacuation avec embouchure horizontale
GB2558939A (en) * 2017-01-23 2018-07-25 Martin Baldwin James Boiler flue weather protection apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2298062A1 (fr) * 1975-01-17 1976-08-13 Leblanc Sa E L M Ventouse pour appareil de production d'eau chaude ou de chauffage
IT1083353B (it) 1976-08-03 1985-05-21 Leblanc Sa E L M Perfezionamenti ai sistemi di scarico a ventosa dei gas di combustione di apparecchi a gas a tenuta
FR2360829A1 (fr) * 1976-08-03 1978-03-03 Leblanc Sa E L M Perfectionnements apportes aux systemes d'evacuation a ventouse des gaz de combustion d'appareils a gaz etanches
JPS62190320A (ja) * 1986-02-17 1987-08-20 Nissei Sangyo Kk 給排気筒とその製造方法
NL184702C (nl) * 1987-11-20 1989-10-02 Fasto Bv Horizontale dubbelwandige rookgasafvoer.

Also Published As

Publication number Publication date
DE69914265D1 (de) 2004-02-26
NL1009852C2 (nl) 2000-02-15
EP0979973A1 (fr) 2000-02-16

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