EP0317031A1 - Horizontaler doppelwandiger Abgaskanal - Google Patents

Horizontaler doppelwandiger Abgaskanal Download PDF

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Publication number
EP0317031A1
EP0317031A1 EP88202588A EP88202588A EP0317031A1 EP 0317031 A1 EP0317031 A1 EP 0317031A1 EP 88202588 A EP88202588 A EP 88202588A EP 88202588 A EP88202588 A EP 88202588A EP 0317031 A1 EP0317031 A1 EP 0317031A1
Authority
EP
European Patent Office
Prior art keywords
flue
pipe
suction
suction pipe
apertures
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
EP88202588A
Other languages
English (en)
French (fr)
Other versions
EP0317031B1 (de
Inventor
Jan Aede Stapenséa
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.)
Nefit Fasto BV
Original Assignee
Fasto 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 Fasto BV filed Critical Fasto BV
Priority to AT88202588T priority Critical patent/ATE58007T1/de
Publication of EP0317031A1 publication Critical patent/EP0317031A1/de
Application granted granted Critical
Publication of EP0317031B1 publication Critical patent/EP0317031B1/de
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 present invention relates to a horizontal double-­walled flue, in particular for a forced-draught heating appliance, intended for passing through a wall or the like, comprising an essentially horizontal flue pipe situated inside a suction pipe for combustion air, the outflow aperture of the flue pipe viewed in the direction of flow being some distance past the inlet of the suction pipe and the central axis of the flue pipe in the vertical plane of symmetry lying some distance above the central axis of the suction pipe.
  • Such a double-walled flue is known from FR-A-2069101 in which the inlet for the suction of combustion air is in the form of an annular aperture lying concentrically round the flue pipe.
  • the object of the present invention is to provide a flue of the above-mentioned type, in which these disadvantages are avoided in an efficient manner.
  • This object is achieved according to the invention in that the suction pipe has at its free end an essentially vertical end wall, through wich the flue pipe is passed with a suitable seal, and a number of apertures forming the inlet of the suction pipe are provided in the bottom half of the cylindrical wall of the suction pipe near the said end wall.
  • This design has the advantage that the inlet apertures for combustion air are screened against falling rainwater, while the eccentric arrangement of the flue pipe inside the suction pipe produces a large free space in the bottom part of the suction pipe, so that suction of outside air takes place with the minimum of resistance.
  • the suction apertures are arranged in a row next to each other in the peripheral direction, and the flue pipe narrows in the region which - viewed in the direction of flow of the flue gases - lies in front of the row of suction apertures and bounds said apertures.
  • the inlet apertures are thus distributed along the bottom part of the periphery of the suction pipe, while the flue pipe narrows in this region, which ensures a good air supply, on the one hand, and results in an acceleration of the flue gases, on the other, so that they are expelled with a greater "throw".
  • the free end of the flue pipe is slanted off in such a way that the top end edge overlaps the bottom end edge.
  • the horizontal double-­walled flue comprises an outer pipe 1 for the suction of combustion air and an inner pipe 2 for the discharge of the flue gases.
  • the inner pipe has a central axis 3 which in the vertical plane of symmetry 4 (see Fig. 2) lies some distance above the central axis 5 of the outer pipe 1.
  • the outer pipe has a coupling part 6 for the connection to a preceding pipe part (not shown in the drawing) and continues into a cylindrical part 7 which is shut off at the free end of the outer pipe by an end wall 8 which is essentially perpendicular to the wall 7.
  • the inner pipe 2 also has a coupling piece 9 for the connection to a preceding pipe part (not shown in the drawing) and continues via a ridged edge 10 into a cylindrical part 11.
  • This cylindrical part 11 narrows via a conical part 12 to the cylindrical part 13, which is conveyed through the end wall 8 with a suitable seal.
  • the seal comprises a collar 14 which is formed in the wall 8, rests against the pipe part 13, and mates with a thickened part 15 in the pipe part 13.
  • the free end of the pipe part 13 is slanted off in such a way that the top part of the end edge overlaps the bottom part of the end edge.
  • the pipe part is preferably cut off at an angle of approximately 45°.
  • the cylindrical part 7 of the outer pipe has in the peripheral direction a row of apertures 16 which are situated near the end wall 8 and extend along the bottom half of the pipe part 7.
  • the apertures 16 are each oblong in shape and extend in the lengthwise direction of the pipe 7.
  • the inner pipe 1 narrows via the conical part 12, in such a way that the apertures 16 are situated essentially at the level of the pipe part 13 with smaller diameter.
  • This design on the one hand produces a good inflow of air through the apertures 16 and, on the other, the flue gases are accelerated due to the narrowing, so that the "throw" is increased.
  • This increased throw has a beneficial effect on the air infeed and also prevents plume formation when the outside air is cold.
  • the inner pipe 1 is also provided with a wire grid 17, which is fitted at the point where the pipe part 11 passes into the conical part 12. This wire grid serves to prevent foreign objects from being able to penetrate into the flue.
  • the part 13 of the inner pipe projecting beyond the suction pipe must have a fixed direction relative to the outer pipe.
  • the part 13 is provided with a ridge 18 which extends in the lengthwise direction of said pipe part 13 and mates with an indentation in the collar 14, so that the inner pipe can be passed through the wall 8 in only one way.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
  • Baking, Grill, Roasting (AREA)
  • Joints Allowing Movement (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP88202588A 1987-11-20 1988-11-17 Horizontaler doppelwandiger Abgaskanal Expired - Lifetime EP0317031B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88202588T ATE58007T1 (de) 1987-11-20 1988-11-17 Horizontaler doppelwandiger abgaskanal.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NLAANVRAGE8702792,A NL184702C (nl) 1987-11-20 1987-11-20 Horizontale dubbelwandige rookgasafvoer.
NL8702792 1987-11-20

Publications (2)

Publication Number Publication Date
EP0317031A1 true EP0317031A1 (de) 1989-05-24
EP0317031B1 EP0317031B1 (de) 1990-10-31

Family

ID=19850952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88202588A Expired - Lifetime EP0317031B1 (de) 1987-11-20 1988-11-17 Horizontaler doppelwandiger Abgaskanal

Country Status (4)

Country Link
EP (1) EP0317031B1 (de)
AT (1) ATE58007T1 (de)
DE (1) DE3860942D1 (de)
NL (1) NL184702C (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401195B (de) * 1993-03-01 1996-07-25 Vaillant Gmbh Kombinierte abgas-frischluftleitung
NL1009852C2 (nl) * 1998-08-12 2000-02-15 Interactive Holding Bv Muurdoorvoer met recirculatie tegengaande kraag.
NL1014750C2 (nl) * 2000-03-24 2001-09-25 Muelink & Grol Bv Samenstel van een luchtinlaat- en rookgasuitlaatmondstuk van het horizontale type.
EP1582813A2 (de) 2004-03-26 2005-10-05 Vaillant GmbH Abgasanlage mit einem Anschlussstück für eine Abgasleitung
GB2457235A (en) * 2008-02-05 2009-08-12 Evan Kilpatrick Horizontal flue system
CN110081453A (zh) * 2018-01-26 2019-08-02 博世热力技术（上海）有限公司 锅炉气体循环装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2558939A (en) * 2017-01-23 2018-07-25 Martin Baldwin James Boiler flue weather protection apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1499530A (fr) * 1966-10-20 1967-10-27 Haller Meurer Werke Ag Dispositif de réglage de tirage automatique, en particulier pour dispositifs de chauffage à gaz
FR2069101A5 (de) * 1969-11-14 1971-09-03 Metaalfab Benraad
GB1258325A (de) * 1969-05-02 1971-12-30

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1499530A (fr) * 1966-10-20 1967-10-27 Haller Meurer Werke Ag Dispositif de réglage de tirage automatique, en particulier pour dispositifs de chauffage à gaz
GB1258325A (de) * 1969-05-02 1971-12-30
FR2069101A5 (de) * 1969-11-14 1971-09-03 Metaalfab Benraad

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401195B (de) * 1993-03-01 1996-07-25 Vaillant Gmbh Kombinierte abgas-frischluftleitung
NL1009852C2 (nl) * 1998-08-12 2000-02-15 Interactive Holding Bv Muurdoorvoer met recirculatie tegengaande kraag.
EP0979973A1 (de) * 1998-08-12 2000-02-16 InterActive Holding B.V. Mauerdurchführung mit Rand zur Verhinderung der Rezirkulation
NL1014750C2 (nl) * 2000-03-24 2001-09-25 Muelink & Grol Bv Samenstel van een luchtinlaat- en rookgasuitlaatmondstuk van het horizontale type.
EP1136757A2 (de) * 2000-03-24 2001-09-26 Muelink & Grol B.V. Horizontaler kombinierter Lufteinlass und Rauchgasaustritt
EP1136757A3 (de) * 2000-03-24 2001-10-04 Muelink & Grol B.V. Horizontaler kombinierter Lufteinlass und Rauchgasaustritt
EP1582813A2 (de) 2004-03-26 2005-10-05 Vaillant GmbH Abgasanlage mit einem Anschlussstück für eine Abgasleitung
GB2457235A (en) * 2008-02-05 2009-08-12 Evan Kilpatrick Horizontal flue system
CN110081453A (zh) * 2018-01-26 2019-08-02 博世热力技术（上海）有限公司 锅炉气体循环装置

Also Published As

Publication number Publication date
NL184702B (nl) 1989-05-01
DE3860942D1 (de) 1990-12-06
EP0317031B1 (de) 1990-10-31
NL184702C (nl) 1989-10-02
ATE58007T1 (de) 1990-11-15
NL8702792A (nl) 1988-07-01

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