EP2933558B1 - Système de déflecteur d'air - Google Patents

Système de déflecteur d'air Download PDF

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Publication number
EP2933558B1
EP2933558B1 EP15163574.5A EP15163574A EP2933558B1 EP 2933558 B1 EP2933558 B1 EP 2933558B1 EP 15163574 A EP15163574 A EP 15163574A EP 2933558 B1 EP2933558 B1 EP 2933558B1
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EP
European Patent Office
Prior art keywords
wind deflector
exhaust pipe
shielding portion
axial
section
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.)
Active
Application number
EP15163574.5A
Other languages
German (de)
English (en)
Other versions
EP2933558A1 (fr
Inventor
Dieter Bächle
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.)
Welipa AG
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Welipa AG
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Publication date
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Publication of EP2933558A1 publication Critical patent/EP2933558A1/fr
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Publication of EP2933558B1 publication Critical patent/EP2933558B1/fr
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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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2213/00—Chimneys or flues
    • F23J2213/30—Specific materials
    • F23J2213/302—Specific materials plastic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2213/00—Chimneys or flues
    • F23J2213/50—Top cover
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
    • F23J2900/13005—Protections for chimneys or flue tops against external factors, e.g. birds

Definitions

  • the invention relates to a wind deflector system with a wind deflector and an exhaust pipe for combustion gases of building heaters according to claim 1.
  • building heaters In building heaters, especially in condensing boilers, there is the problem that wind-induced pressure fluctuations, in particular a temporary wind-induced overpressure, can lead to exhaust gas flowing into the building interior, with a consequent risk for persons located therein.
  • building heaters are generally equipped with an overpressure monitor which, in the event of impermissibly high pressures, transforms the heating system into a fault mode or interrupts the heating process until it is manually unlocked.
  • rotatably arranged wind deflector are known which rotate with the wind direction and in this way the Wind Wegströmungs politicians laterally slide past the exhaust pipe opening.
  • a disadvantage is the complex structure and the susceptibility to wear of such systems.
  • the wind deflector for mounting at the outlet of exhaust pipes for combustion gases from building heaters known.
  • the wind deflector has a conically tapering in the direction of the exhaust pipe section, which is peripherally surrounded by a cylindrical shell.
  • the FR 2 574 904 A1 describes a cover for chimneys with a projecting into an exhaust pipe conical section.
  • a multi-part wind deflector comprising a tube-side baffle and a spaced above arrangeable air guide.
  • the US 4,206,693 A describes a wind deflector system for chimneys with a plurality of superimposed fin sections.
  • the EP 0 214 087 A1 describes a chimney hood with two axially spaced deflectors.
  • the US 3,477,358 describes a metallic rotor for introducing wind into a pipe.
  • the US 1,531,831 also describes a metallic, rotating with the wind body to the end attachment to a pipe.
  • the US 3,354,931 describes a metallic wind deflector with a height-adjustable cover element.
  • the present invention is therefore based on the object of specifying a Windabweisersysstem with a wind deflector without movably arranged parts, which is easily manufacturable and reliably prevents wind-induced excess pressures in exhaust pipes even with changing wind directions and / or Windströmungeinfallswinkeln and a good stop the exhaust pipe guaranteed.
  • the object is to provide a correspondingly improved wind deflector system with such a wind deflector. This object is achieved with regard to the wind deflector system with the features of claim 1.
  • the wind deflector of the wind deflector system designed according to the concept of the invention is characterized in that it does not comprise any parts which are moved or moved by the action of wind.
  • the wind deflector is to ensure a good Windabweiserfunktion according to the invention equipped with a rotationally symmetrical screen section, ie with a screen section with respect to the longitudinal center axis of the screen section rotationally symmetrical lateral surface (inflow surface for the wind), wherein the radial diameter of the umbrella section starting from a, preferably upper maximum diameter over the axial extent (preferably towards the fixing means and / or the exhaust pipe) tapers and also in an axial longitudinal sectional view (ie on one side of such a longitudinal sectional view) has a concave curved and a convexly bent axial section, wherein preferably the convexly bent axial section above of the concave curved axial section is arranged. It is particularly preferred if the above-mentioned upper convexly bent axial section merges into
  • Such a designed wind deflector has over known wind deflectors significant advantages.
  • the wear is low due to the absence of moving with the wind components.
  • the wind deflector is inexpensive manufacturable, for which purpose the shield section is made of plastic, in particular as a plastic injection molded part. Due to its rotationally symmetrical design, the wind direction for the functionality plays surprisingly no role.
  • the special contour of the lateral surface with its convex and concave axial section viewed in longitudinal section also ensures a reliable functioning wind deflector even with different angles of incidence relative to the horizontal.
  • the wind deflector is arranged in the mounted state so that the shield section protrudes axially into the exhaust pipe, wherein preferably the shield portion is connected within the exhaust pipe with an intended sleeve portion of the fixing means by screwing with the fixing screw also mentioned above. It is particularly expedient if an upper, remote from the exhaust pipe and axially spaced therefrom portion of the shield section projects beyond the outer diameter of the exhaust pipe in the radial direction, preferably in each radial direction by a distance which is at least half the outer radius of the exhaust pipe equivalent.
  • the lateral surface of the shield section has an S-shaped (outer) contour in the axial longitudinal section.
  • the S-shape is preferably angled relative to the longitudinal central axis of the screen section or arranged obliquely.
  • the shield section is particularly useful in the embodiment according to the invention, in view of a cost-effective design of the shield section as a plastic part, in particular as a plastic injection molded part, that this is designed to be hollow inside.
  • the wall thickness of the high screen section is between 2mm and 5mm.
  • the screen section can be fixed by means of a fixing screw which can be completely hidden within the screen section.
  • the wind deflector is closed or closable with a lid which can preferably be latched with the screen section, very particularly preferably made of plastic.
  • a closure lid has u.a. the task of preventing potentially dangerous icing due to otherwise accumulating water.
  • the aforementioned closure lid is provided in addition to the umbrella portion and preferably fixed or fixable thereto, most preferably by a latching connection.
  • the closure lid it is possible for the closure lid to directly form an axial section of the umbrella section itself. It is particularly preferred if the closure lid is curved upwards, in order thus to facilitate a facilitated water drainage in order to avoid icing phenomena.
  • the fixing means have a, in the exhaust pipe recessed, preferably cylindrical, axially permeable by the exhaust gas, sleeve portion.
  • This guarantees a good grip on the exhaust pipe.
  • the sleeve portion at its upper end a, preferably annular support shoulder as an axial stop for axial support at an exhaust pipe end, in order to ensure as far as a defined immersion depth or relative position of the screen section to the outlet opening of the exhaust pipe.
  • the umbrella section is again not fixed directly to the sleeve section, but indirectly via radial webs preferably formed integrally with the sleeve section or at least one such radial web.
  • radial webs preferably formed integrally with the sleeve section or at least one such radial web.
  • Very particular preference is given to providing a plurality of radial webs, in particular evenly spaced in the circumferential direction, which meet centrally, ie in the region of the longitudinal central axis of the sleeve section, the screen section preferably being fixed in this central region. This then also results in a very particularly preferred embodiment, in which the screen section is formed as a part separate from the sleeve section or from the fixing means.
  • a fixing screw explained further above is used, which is very particularly preferably received in the then inside screen portion.
  • the fixing screw is arranged in the longitudinal center axis of the screen section, which preferably coincides in the mounted state of the wind deflector with the longitudinal center axis of the sleeve section.
  • the shield section has been found, after which the shield portion of the wind deflector, the lateral surface of an imaginary, a cone angle of 45 ° having cone whose longitudinal central axis coincides with the longitudinal central axis of the screen portion and at the same time the lateral surface of the inner edge contour of the exhaust pipe and / or of the optional sleeve portion receives contacts or cuts with its concavely bent portion.
  • the convexly curved portion of the shield section of the wind deflector is arranged radially inwardly and radially spaced from the lateral surface of an imaginary cone having a cone angle of 45 °, whose longitudinal central axis coincides with the longitudinal center axis of the shield section and its Jacket surface receives the outer edge contour of the exhaust pipe end and / or the upper end of the sleeve portion.
  • a ratio of the axial extent of the section of the concavely curved section projecting beyond the exhaust pipe and the axial length of the section of the (total) wind deflector projecting beyond the exhaust pipe is greater than or equal to 0.5 and / or between 0.5 and 0.6 is. Most preferably, this ratio is at least approximately 0.53.
  • an outer upper peripheral edge of the closure lid is provided with a radius, in particular between 1 mm and 2 mm, in particular of 1.5 mm.
  • Windabweisersystem 1 for building heaters.
  • This comprises a formed here of plastic exhaust pipe 2 (exhaust pipe) for combustion gases of building heaters, especially condensing boilers and trained according to the concept of the invention wind deflector 3.
  • This is mounted with the help of later to be explained fixing means 4 at the end of the exhaust pipe 2.
  • the wind deflector 3 comprises a shield section 5, which projects into the exhaust pipe 2 with its lower end facing the exhaust pipe 2 and which, with its upper section facing away from it, projects beyond the exhaust pipe 2 in the radial direction to the outside.
  • the right half of the rotationally symmetrical lateral surface 6 of the umbrella section 5 in the plane of the drawing comprises an almost horizontal S-shaped outer contour. This in turn is formed by a lower, concavely curved portion 7 (axial portion) and a further adjoining convex curved Section 8 (axial section), which in turn merges further into a cylindrical contour section 9.
  • the shield section 5 is hollow on the inside, here in the embodiment as a plastic injection molded part, wherein the shield section 5 is closed with a closure lid 10, which is slightly curved upwards, thus ensuring water drainage and thus icing phenomena minimize.
  • the closure lid 10 is fixed by latching or by the realization of a latching connection on the screen section 5.
  • the closure lid 10 overlaps or overlaps with its peripheral edge an upper axial section of the umbrella section 5 and is latched thereto.
  • exhaust pipe 2 can also be used with the wind deflector shown a diameter of 80 mm having exhaust pipe. Then, the aforementioned cone angle of the cone 17 (see FIG. Fig. 2 ) corresponding. The cone becomes steeper.
  • the structure of the fixing means 4 can be seen.
  • These comprise a protruding into the exhaust pipe 2 sleeve portion 11, which is axially supported on the opening end face of the exhaust pipe 2 via an annular shoulder 12.
  • Integral with the sleeve portion 11 are formed by way of example three radially inwardly projecting webs 13, which meet in a central region 14. With this central region 14 of the shield portion 5 is bolted thereto fixed closure lid 10, via a fixing screw 15 which is located on the common longitudinal center axis of the exhaust pipe 2 and the wind deflector 3.
  • the shield portion 5 is dimensioned and arranged so that a lateral surface of an imaginary cone 16 with a cone angle of 45 °, which receives an inner contour of the sleeve portion 11 and the opening edge of the sleeve portion 11 in the convex portion 8 intersects at two locations , At the same time the convexly curved portion 8 is completely radially inward or spaced from another imaginary cone 17 with a cone angle of 45 °, which receives the outer edge contour of the exhaust pipe in it.
  • Fig. 4 results, interspersed for this purpose the fixing screw 15 an end-side unthreaded opening 18 of the shield section 5 in the axial direction and is screwed to the central region 14, wherein a screw head of the fixing screw 15 the force of the peripheral edge of the opening 18 axially towards the central region 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Claims (10)

  1. Système de déflecteur de vent (1) comprenant un tuyau d'échappement (2) pour des gaz de combustion des installations de chauffage de bâtiment, notamment des chaudières à condensation, un déflecteur de vent (3) et des moyens de fixation (4) par lesquels le déflecteur de vent (3) est monté dans la zone de la sortie du tuyau d'échappement, le déflecteur de vent, qui n'a aucune pièce agitable par le vent, comprenant une partie de blindage (5) qui a une surface périphérique (6) ayant un contour à symétrie de révolution en forme de S en coupe longitudinale, le diamètre radial de la surface périphérique (6) diminuant à partir d'un diamètre maximal le long de l'étendue axiale et ayant des parties axiales (7, 8) concave et convexe en coupe longitudinale, la partie de blindage (5) étant creuse à l'intérieur et le déflecteur de vent (3) étant fermé à son extrémité supérieure, notamment par un couvercle (10) fermant la partie de blindage (5) et/ou formant une partie de la partie de blindage (5) et ayant de préférence un contour (16) courbé vers le haut afin de faciliter l'évacuation d'eau, la partie de blindage (5) s'étendant axialement, notamment centralement, dans le tuyau d'échappement (2),
    caractérisé en ce que
    la partie de blindage (5) est en matière plastique et en ce que les moyens de fixation (4) ont une partie de douille (11) qui est disposée dans le tuyau d'échappement (2).
  2. Système de déflecteur de vent selon la revendication 1,
    caractérisé en ce que
    le couvercle (10) est encliqueté dans la partie de blindage (5).
  3. Système de déflecteur de vent selon l'une quelconque des revendications 1 ou 2,
    caractérisé en ce que
    la partie de douille (11) est cylindrique.
  4. Système de déflecteur de vent selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce
    qu'à son extrémité supérieure, la partie de douille (11) a un épaulement de support de préférence annulaire servant de butée axiale pour s'appuyer axialement sur une extrémité du tuyau d'échappement.
  5. Système de déflecteur de vent selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce que
    la partie de blindage (5) est attachée à au moins une âme radiale (13), de préférence à plusieurs âmes radiales (13) qui sont espacées dans la direction circonférentielle et qui débouchent dans la partie de douille (11) du côté radialement extérieur.
  6. Système de déflecteur de vent selon la revendication 5,
    caractérisé en ce que
    la partie de blindage (5) est reliée avec l'au moins une âme radiale (13), notamment avec une partie de fixation centrique par rapport à la partie de douille (11), par une vis de fixation (15) logée à l'intérieur de la partie de blindage (5).
  7. Système de déflecteur de vent selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'une partie supérieure de la partie de blindage (5) qui est détournée du tuyau d'échappement (2) et axialement espacée de celui-ci dépasse le diamètre extérieur du tuyau d'échappement (2) vers l'extérieur dans la direction radiale, de préférence par une partie de rayon dont l'étendue radiale correspond à au moins 50 % du rayon extérieur du tuyau d'échappement (2).
  8. Système de déflecteur de vent selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la partie concave (7) de la partie de blindage (5) du déflecteur de vent (3) touche ou croise la surface périphérique (6) d'un cône imaginaire (16) qui a un angle de cône de 45° et dont l'axe central longitudinal coïncide avec l'axe central longitudinal de la partie de blindage (5) et dont la surface périphérique (6) entoure le contour de bord intérieur de l'extrémité du tuyau d'échappement et/ou de l'extrémité supérieure de la partie de douille (11), et/ou en ce que la partie convexe (8) de la partie de blindage (5) du déflecteur de vent (3) est disposée radialement à l'intérieur et à une distance radiale de la surface périphérique (6) d'un cône imaginaire (17) qui a un angle de cône de 45° et dont la l'axe central longitudinal coïncide avec l'axe central longitudinal de la partie de blindage (5) et dont la surface périphérique (6) entoure le contour de bord extérieur de l'extrémité du tuyau d'échappement et/ou de l'extrémité supérieure de la partie de douille (11).
  9. Système de déflecteur de vent selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'un rapport de l'étendue axiale de la partie axiale de la partie concave (7) de la partie de blindage (5) qui dépasse le tuyau d'échappement (2) à l'étendue axiale de la partie du déflecteur de vent (3) qui dépasse le tuyau d'échappement (2) est supérieur ou égal à 0,5 et/ou sélectionné dans une plage de valeurs comprises entre 0,5 et 0,6 et/ou en ce qu'un rapport d'un diamètre extérieur maximal du déflecteur de vent (3) au diamètre intérieur du tuyau d'échappement (2) est supérieur à 1,7 et/ou sélectionné dans une plage de valeurs comprises entre 1,7 et 2,1.
  10. Système de déflecteur de vent selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la partie de blindage (5) est une pièce en matière plastique moulée par injection.
EP15163574.5A 2014-04-16 2015-04-14 Système de déflecteur d'air Active EP2933558B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202014101816.6U DE202014101816U1 (de) 2014-04-16 2014-04-16 Windabweiser sowie Windabweisersystem

Publications (2)

Publication Number Publication Date
EP2933558A1 EP2933558A1 (fr) 2015-10-21
EP2933558B1 true EP2933558B1 (fr) 2019-09-04

Family

ID=52997234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15163574.5A Active EP2933558B1 (fr) 2014-04-16 2015-04-14 Système de déflecteur d'air

Country Status (2)

Country Link
EP (1) EP2933558B1 (fr)
DE (2) DE202014101816U1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2169310A1 (fr) * 2008-09-29 2010-03-31 Horst Wunsch Système de cheminée

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1073079A (en) * 1911-05-29 1913-09-09 James Christie Ventilator.
US1531831A (en) * 1922-05-24 1925-03-31 Cape Andre Sa Chimney top
GB1088908A (en) 1964-12-03 1967-10-25 Gulf Oil Corp Venting apparatus
US3345931A (en) * 1964-12-03 1967-10-10 Gulf Research Development Co Venturi ejector including automatically movable disc members
US3477358A (en) * 1967-12-21 1969-11-11 Ben O Howard Inspirator ventilator
US4206693A (en) 1978-09-18 1980-06-10 Mitchell Arthur W Chimney cowls
FR2574904B1 (fr) 1984-12-18 1988-12-23 Antonini Benoit Dispositif de sortie, pour supprimer les refoulements, et accelerateur de tirage, pour cheminee
DE3661333D1 (en) 1985-08-09 1989-01-05 Roweco Chimney top for the draught control in a flue
DE3929578A1 (de) 1989-09-06 1991-03-07 Stiebel Eltron Gmbh & Co Kg Abdeckhaube fuer einen schornstein

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2169310A1 (fr) * 2008-09-29 2010-03-31 Horst Wunsch Système de cheminée

Also Published As

Publication number Publication date
DE202014101816U1 (de) 2015-07-20
EP2933558A1 (fr) 2015-10-21
DE102015100077A1 (de) 2015-10-22

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