EP2933558A1 - Déflecteur d'air et système de déflecteur d'air - Google Patents

Déflecteur d'air et système de déflecteur d'air Download PDF

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Publication number
EP2933558A1
EP2933558A1 EP15163574.5A EP15163574A EP2933558A1 EP 2933558 A1 EP2933558 A1 EP 2933558A1 EP 15163574 A EP15163574 A EP 15163574A EP 2933558 A1 EP2933558 A1 EP 2933558A1
Authority
EP
European Patent Office
Prior art keywords
wind deflector
section
exhaust pipe
axial
lateral surface
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
EP15163574.5A
Other languages
German (de)
English (en)
Other versions
EP2933558B1 (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
Original Assignee
Welipa AG
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Filing date
Publication date
Application filed by Welipa AG filed Critical Welipa AG
Publication of EP2933558A1 publication Critical patent/EP2933558A1/fr
Application granted granted Critical
Publication of EP2933558B1 publication Critical patent/EP2933558B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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 according to the preamble of claim 1 with fixing means for mounting at the outlet of exhaust pipes for combustion gases of building heating systems, in particular condensing boilers. Furthermore, the invention relates to a wind deflector system with such a wind deflector and an exhaust pipe according to claim 9.
  • 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 building heating system into a fault mode or interrupts the heating process up to a manual unlocking.
  • an overpressure monitor which, in the event of impermissibly high pressures, transforms the building heating system into a fault mode or interrupts the heating process up to a manual unlocking.
  • To avoid wind-induced pressure surges in exhaust pipes of building heating rotatably arranged wind deflector are known which rotate with the wind direction and in this way the Wind luxuriousströmungsraum 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 present invention is therefore based on the object of specifying a wind deflector without movably arranged parts, which is easily manufacturable and reliably prevents wind-induced overpressures in exhaust pipes even with changing wind directions and / or wind flow incident angles.
  • the object is to provide a correspondingly improved wind deflector system with such a wind deflector.
  • wind deflector is characterized by the fact that this does not include moved by wind or movably arranged parts.
  • 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 portion, preferably the convex curved Axial section is arranged above the concave curved A-xialab bainites.
  • 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 to manufacture, for which purpose the shield portion is preferably 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 moreover ensures a reliable functioning wind deflector even with different angles of incidence relative to the horizontal.
  • 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 portion is a plastic part, in particular as a plastic injection molded part, if this is designed to be hollow inside.
  • the wall thickness of the high screen section is between 2mm and 5mm.
  • the shield portion are fixed by means of a fixing screw, which can be completely hidden within the umbrella section, especially if the wind deflector with a preferably latched to the screen portion cover, most preferably made of plastic or closable.
  • a closure lid has u.a. the task of preventing potentially dangerous icing due to otherwise accumulating water.
  • the aforesaid closure lid can be provided in addition to the umbrella section and can preferably be fixed or fixable thereto, very particularly preferably by a latching connection.
  • the fixing means have a retractable in an exhaust pipe or axially on this can be arranged, preferably cylindrical, axially permeable by the exhaust gas, sleeve portion. This guarantees a good grip on the exhaust pipe. It is particularly expedient if the sleeve portion at its upper end a, preferably annular support shoulder as an axial stop for axial support at an exhaust pipe end, so far as to ensure a defined immersion depth or relative position of the screen portion 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.
  • a plurality of, in particular uniformly spaced in the circumferential direction radial webs are provided, which are centric, i. meet in the region of the longitudinal center axis of the sleeve portion, wherein in this central region of the shield portion is preferably fixed.
  • 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 invention also leads to a Windabweisersystem comprising a trained according to the concept of the invention wind deflector and a Exhaust pipe, in particular made of plastic for combustion gases for building heating systems, in particular condensing boilers.
  • the wind deflector is mounted on the end of the exhaust pipe with the help of fixing means or mountable.
  • 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 a preferably provided 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 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 center 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 central axis of the shield section and its Lateral surface the outer edge contour the exhaust pipe end and / or the upper end of the sleeve portion receives.
  • a ratio of the axial extent of the section of the concavely curved section projecting beyond the exhaust line and the axial length of the section of the (total) wind deflector projecting beyond the exhaust line 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, especially 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. These in turn, it is formed by a lower, concavely curved section 7 (axial section) and a convexly curved section 8 (axial section) adjoining above, 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.
  • Fig. 3 the structure of the fixing means 4 can be seen.
  • These include a protruding into the exhaust pipe 2 sleeve portion 11 which is axially supported on the opening end side 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)
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 true EP2933558A1 (fr) 2015-10-21
EP2933558B1 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 (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
US3345931A (en) * 1964-12-03 1967-10-10 Gulf Research Development Co Venturi ejector including automatically movable disc members
GB1088908A (en) 1964-12-03 1967-10-25 Gulf Oil Corp Venting apparatus
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
FR2574904A1 (fr) 1984-12-18 1986-06-20 Antonini Benoit Dispositif de sortie, pour supprimer les refoulements, et accelerateur de tirage, pour cheminee
EP0214087A1 (fr) 1985-08-09 1987-03-11 Roweco Chapeau de cheminée pour contrôler le tirage d'une cheminée
DE3929578C2 (fr) 1989-09-06 1992-12-17 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden, De

Family Cites Families (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

Patent Citations (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
US3345931A (en) * 1964-12-03 1967-10-10 Gulf Research Development Co Venturi ejector including automatically movable disc members
GB1088908A (en) 1964-12-03 1967-10-25 Gulf Oil Corp Venting apparatus
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
FR2574904A1 (fr) 1984-12-18 1986-06-20 Antonini Benoit Dispositif de sortie, pour supprimer les refoulements, et accelerateur de tirage, pour cheminee
EP0214087A1 (fr) 1985-08-09 1987-03-11 Roweco Chapeau de cheminée pour contrôler le tirage d'une cheminée
DE3929578C2 (fr) 1989-09-06 1992-12-17 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden, De

Also Published As

Publication number Publication date
EP2933558B1 (fr) 2019-09-04
DE202014101816U1 (de) 2015-07-20
DE102015100077A1 (de) 2015-10-22

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