EP0711954B1 - Luft/Abgas-Schornstein - Google Patents
Luft/Abgas-Schornstein Download PDFInfo
- Publication number
- EP0711954B1 EP0711954B1 EP95117735A EP95117735A EP0711954B1 EP 0711954 B1 EP0711954 B1 EP 0711954B1 EP 95117735 A EP95117735 A EP 95117735A EP 95117735 A EP95117735 A EP 95117735A EP 0711954 B1 EP0711954 B1 EP 0711954B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ribs
- flue gas
- pipe
- stack according
- air
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
- F23J13/02—Linings; Jackets; Casings
- F23J13/025—Linings; Jackets; Casings composed of concentric elements, e.g. double walled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2211/00—Flue gas duct systems
- F23J2211/10—Balanced flues (combining air supply and flue gas exhaust)
- F23J2211/101—Balanced flues (combining air supply and flue gas exhaust) with coaxial duct arrangement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2211/00—Flue gas duct systems
- F23J2211/40—Chimney with internal flue pipe system
-
- 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
- F23J2213/304—Specific materials ceramic
Definitions
- the invention relates to an air / exhaust chimney with the Features according to the preamble of claim 1.
- Air / exhaust chimneys of the type specified above known see DE-U 77 06 857, DE-A 35 39 311). With these known chimneys flows into the chimney head Fresh air in counterflow to that inside the exhaust pipe discharged exhaust gas stream, the fresh air through Heat exchange with the warm pipe wall of the exhaust pipe is heated. This enables waste heat to be recovered and thus an energy saving.
- a heat recovery is also known in the Connection with the routing of the exhaust gas and the supply air a kiln for firing ceramic articles (FR-A 493 632).
- the exhaust duct consists of ceramic socket pipe sections, which increase the desired heat transfer to the flowing along the outside Supply air are provided with ribs.
- the exhaust duct runs horizontally so that with a support of the socket pipe sections must be counted over the ribs. Out of it follows that the socket pipe sections for strength reasons have a relatively large wall thickness and that in only small number of wing-like ribs provided project relatively far from the peripheral surface.
- the object of the invention is therefore an air / exhaust chimney of the type mentioned, which is mainly in Connection with condensing plants as far as possible Improved thermal efficiency allowed without that this increases the risk of breakage for the Construction of the smoke tube used ceramic Pipe sections is caused.
- the ribs provided on the outer surface of the exhaust pipe can be used to achieve increased heat transfer their design and their course can be varied.
- a preferred design provides that the ribs axially parallel to the longitudinal axis of the exhaust pipe on its Outer surface run.
- the small radial extension and the multitude of ribs is largely one Compromise on the sensitivity to breakage in the Handling of the exhaust pipe and by the type of manufacture certainly. It has been shown that a variety relatively little protruding ribs that the Outside surface of the exhaust pipe the impression of a grooving convey a significant increase in heat transfer in the Comparison with a smooth pipe wall and are relatively unlikely to break.
- the distance adjacent ribs from each other must be selected so that there is also a flow between the neighboring ribs takes place, which gives the desired heat transfer.
- the exhaust pipes proposed here are ceramic exhaust pipes, in the way of preferred manufacturing of isostatic pressing is very extensive Design freedom for the ribs. While e.g. in the case of ceramic tubes manufactured in the extrusion process Ribs can only run axially parallel to the pressing direction, allows the isostatic pressing also the described Oblique course of the ribs with respect to the pipe axis.
- the exhaust pipe is in the usual form by individual Pipe sections with sleeves provided at one end built up an assembly by way of Allow plug connection.
- the pipe cross section can be round or square be.
- the part of an air / exhaust chimney shown in Fig. 1 has one of a number of mantle stones 1 built-up mantelpiece, in its shaft 2 one off individual pipe sections 3 built exhaust pipe is arranged concentrically. At least on some of the Pipe sections 3 are metal strips 4 on their outer surface attached, of which spacers 5 diagonally after extend outside.
- the spacers 5 (in the shown Embodiment four pieces per metal band) serve to keep the exhaust pipe concentrically in the shaft 2, but at the same time not to hinder relative thermal expansion.
- the exhaust pipe through relatively thin-walled ceramic pipe sections 3 formed, which are manufactured by isostatic pressing. They each have a sleeve 6 at one end, in which each have the other end of the next one Pipe section is insertable.
- a gas tightness at the Plug connection can be achieved by putty.
- the outer surface of the pipe sections 3 a plurality of ribs 7 on the present Embodiment lie close together and one Have a triangular cross-section.
- the wall thickness of the Pipe sections 3, measured between the inner wall surface and the bottom of the grooves formed by the ribs 7 for example 7 mm, the height and width of the ribs on Groove base is about 3 mm. Because of the dense Side by side arrangement of the ribs 7 and the described Dimensioning have the pipe sections 3 on their Outside surface has a serrated appearance. As can be seen in FIG.
Description
Claims (6)
- Luft/Abgas-Schornstein für mit niedriger Abgastemperatur arbeitende Heizanlagen, mit einem Abgasrohr, das in einem den Zuluftkanal (2) bildenden Schacht des Schornsteins mit Abstand von der Schachtwand angeordnet ist und aus mehreren Rohrabschnitten (3) besteht, dadurch gekennzeichnet,
daßa) die Rohrabschnitte (3) aus dünnwandigem Keramikmaterial bestehen und zum Zweck einer Steckverbindung jeweils eine Muffe (6) aufweisen;b) die Außenfläche der Rohrabschnitte (3) eine Riefung mit einer Vielzahl von dicht nebeneinander liegenden und geringfügig vorspringenden Rippen (7) aufweist. - Schornstein nach Anspruch 1,
dadurch gekennzeichnet,
daß die Rippen (7) parallel zur Längsachse des Abgasrohres (3) verlaufen. - Schornstein nach Anspruch 1,
dadurch gekennzeichnet,
daß die Rippen (7) schraubenförmig auf der Umfangsfläche des Abgasrohres verlaufen. - Schornstein nach Anspruch 1,
dadurch gekennzeichnet,
daß die Rippen quer zur Längsachse des Abgasrohres verlaufen. - Schornstein nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß der Rippenquerschnitt dreieckig oder viereckig ist. - Schornstein nach Anspruch 5,
dadurch gekennzeichnet,
daß die freien Kanten der Rippen gerundet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9418056U | 1994-11-11 | ||
DE9418056U DE9418056U1 (de) | 1994-11-11 | 1994-11-11 | Luft/Abgas-Schornstein |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0711954A2 EP0711954A2 (de) | 1996-05-15 |
EP0711954A3 EP0711954A3 (de) | 1997-05-14 |
EP0711954B1 true EP0711954B1 (de) | 1998-12-09 |
Family
ID=6915973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95117735A Expired - Lifetime EP0711954B1 (de) | 1994-11-11 | 1995-11-10 | Luft/Abgas-Schornstein |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0711954B1 (de) |
AT (1) | ATE174419T1 (de) |
DE (2) | DE9418056U1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19802417C1 (de) * | 1998-01-23 | 1999-05-12 | Centrotherm Abgastechnik Gmbh | Bausatz für eine Luft-Abgas-Leitung |
EP1020684B1 (de) | 1999-01-14 | 2004-10-20 | Schiedel GmbH & Co. | Innenrohr für einen Schornstein |
DE10134236A1 (de) * | 2001-07-13 | 2003-02-06 | Wolf Gmbh | Vorrichtung zur Luft- und Abgasführung zur aktiven Reinhaltung der Dachoberfläche |
DE102006035004B4 (de) * | 2005-09-14 | 2009-07-09 | Antonietta Colucci | Kaminsystemelement |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR493632A (fr) * | 1918-12-06 | 1919-08-14 | Alexandre Bigot | Perfectionnements aux fours à flamme renversée |
US2619022A (en) * | 1950-02-20 | 1952-11-25 | Richard G Hergenrother | Ventilating chimney |
GB1357520A (en) * | 1970-04-29 | 1974-06-26 | Boulter H E | Combustion boilers |
FR2092599A1 (de) * | 1970-08-10 | 1972-01-28 | Warnier Jean | |
DE7706857U1 (de) * | 1977-03-05 | 1978-08-03 | Jacob Plein-Wagner Soehne Steinzeugwarenfabrik, 5522 Speicher | Kaminrohr mit einem lotrechten kamininnenrohr und seitlichem anschluss fuer ein rauchgasrohr |
US4232595A (en) * | 1978-06-15 | 1980-11-11 | Jefco Laboratories, Incorporated | Exhaust system for smokestack |
DE8402571U1 (de) * | 1984-01-30 | 1984-05-10 | Strabit-Werke Gmbh, 5450 Neuwied | Kaminaufsatz mit einer mittigen, eine diffusorartige erweiterung aufweisenden abgasfuehrung |
DE3539311A1 (de) * | 1985-11-06 | 1987-05-07 | Borbely Gyoergy | Schornstein-, lueftungs- und feuerungssystem |
AT389162B (de) * | 1987-09-21 | 1989-10-25 | Vaillant Gmbh | Ringfoermiger einsatz |
DE9308512U1 (de) * | 1992-05-29 | 1993-09-02 | Vaillant Joh Gmbh & Co | Rauchgasabzugsrohr |
CH688872A5 (de) * | 1993-11-04 | 1998-04-30 | Horst Wunsch | Kondensationskamin. |
-
1994
- 1994-11-11 DE DE9418056U patent/DE9418056U1/de not_active Expired - Lifetime
-
1995
- 1995-11-10 AT AT95117735T patent/ATE174419T1/de not_active IP Right Cessation
- 1995-11-10 DE DE59504485T patent/DE59504485D1/de not_active Expired - Fee Related
- 1995-11-10 EP EP95117735A patent/EP0711954B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0711954A2 (de) | 1996-05-15 |
EP0711954A3 (de) | 1997-05-14 |
DE59504485D1 (de) | 1999-01-21 |
ATE174419T1 (de) | 1998-12-15 |
DE9418056U1 (de) | 1995-12-07 |
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