EP0349802B1 - Chimney cowl for ventilated multi-layered domestic chimneys - Google Patents

Chimney cowl for ventilated multi-layered domestic chimneys Download PDF

Info

Publication number
EP0349802B1
EP0349802B1 EP89110884A EP89110884A EP0349802B1 EP 0349802 B1 EP0349802 B1 EP 0349802B1 EP 89110884 A EP89110884 A EP 89110884A EP 89110884 A EP89110884 A EP 89110884A EP 0349802 B1 EP0349802 B1 EP 0349802B1
Authority
EP
European Patent Office
Prior art keywords
cap according
chimney cap
chimney
smoke tube
opening
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
EP89110884A
Other languages
German (de)
French (fr)
Other versions
EP0349802A1 (en
Inventor
Ulrich Wengenroth
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.)
Schiedel GmbH and Co
Original Assignee
Schiedel GmbH and Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6358307&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0349802(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Schiedel GmbH and Co filed Critical Schiedel GmbH and Co
Priority to AT89110884T priority Critical patent/ATE71688T1/en
Publication of EP0349802A1 publication Critical patent/EP0349802A1/en
Application granted granted Critical
Publication of EP0349802B1 publication Critical patent/EP0349802B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F17/00—Vertical ducts; Channels, e.g. for drainage
    • E04F17/02—Vertical ducts; Channels, e.g. for drainage for carrying away waste gases, e.g. flue gases; Building elements specially designed therefor, e.g. shaped bricks or sets thereof

Definitions

  • the invention relates to a chimney head according to the preamble of claim 1.
  • a chimney head is known from DE-OS 3629249, in particular Fig. 1, and DE-OS 3438696.
  • the flue gas pipe itself is passed through the cover plate for the chimney, while in the case of the second-mentioned publication, an insert part which is functionally associated with the flue gas pipe projects upwards through the cover plate.
  • an outlet housing is arranged above the through-opening above the cover plate, which covers the through-opening at the top and, in the case of the first-mentioned publication, is designed as a special guide for the ventilation air to the side.
  • the ventilation air to the side.
  • condensate forms on the surface of the outlet housing above the passage opening and in the area of the cover plate which is surrounded by the rear ventilation air and drips back into the chimney.
  • the invention is based on the object, while avoiding the disadvantages mentioned above, of demonstrating a new way of mastering the problem of the entry of moisture, in particular condensation, through the passage opening into the chimney.
  • a chimney head is designed according to the preamble of claim 1 with the characterizing features of claim 1.
  • the fact that moisture enters the chimney through the passage opening for the rear ventilation gas is not excluded from the outset, and this moisture after entry into the chimney either by evaporation or rendered harmless by expiry. It has been shown that, in principle, one can get by without an outlet housing. However, the design of the chimney head according to the invention has proven particularly useful as a safety measure in conjunction with additional outlet housings. However, these can then be of particularly simple design (cf. claims 13 ff.).
  • the passage provided according to the invention which is formed by the collecting trough, can in principle be formed by at least one opening thereof, for example by openings distributed over the circumference of the collecting trough, depending on the spatial conditions, more or less circumferential or vertical passage slots.
  • this requires a relatively large amount of construction of the collecting trough, since liquid can only be collected under such openings. It is therefore advisable to limit the passage for the rear ventilation duct only on one side through the free edge of the collecting trough and to use other chimney components to limit the other areas of the passage, in particular according to Claim 5 the bottom of the cover plate.
  • the collecting trough is preferably carried by the flue gas pipe. This initially creates the possibility of reliably collecting condensate from the flue gas pipe itself. If the collecting trough is carried by the flue gas pipe, it moves together with the flue gas pipe in the axial direction during thermal expansion and contraction of the flue gas pipe.
  • the expansion joint between the sump and other components of the chimney required for the compensation of such thermally-induced movements can be used in a particularly advantageous manner at the same time as the passage for the ventilation air with only a slight increase in the otherwise required axial distance.
  • the development according to claim 3 includes the drip pan directly in the construction of the flue gas pipe, which requires formation of at least the elements of the drip pan near the free inner cross section of the flue gas pipe from materials suitable for flue gas pipes in chimneys, for example made of fireclay, ceramic or glass. These materials can also be used for the entire drip pan.
  • This design improves and simplifies the sealing options between the collecting trough and the flue gas pipe, since vertical joints between the two components can be completely avoided. Easy assembly is also guaranteed.
  • the drip pan with the part of the flue gas pipe that follows it can be combined to form a prefabricated unit.
  • the centering option according to claim 4 ensures in a simple manner a reliable axial alignment of the components of the flue gas pipe including the collecting trough.
  • the part of the flue gas pipe arranged above the collecting trough is made thinner, the radial inner edge of the passage opening is laid radially inwards in comparison to embodiments with a constant wall thickness of the flue gas pipe.
  • the outer edge of the passage opening opposite on the cover plate can also be moved radially inwards. This ensures that moisture dripping from the lower edge of the passage opening on the cover plate can be reliably collected by the collecting volume of the collecting trough which can be extended radially outward.
  • the general chimney dimensions remaining the same, radial installation space for the collecting trough between the flue gas pipe and the shell of the chimney adjoining the peripheral side of the chimney, generally its supporting casing, is obtained.
  • the part of the flue gas pipe protruding beyond the cover plate is exposed to particular stresses in the lateral direction, for example due to wind influences, but also due to the application of unwanted lateral pressure during chimney cleaning work. This can lead to undesirable lateral stresses in the joint area between the individual pipes forming the flue gas pipe. The risk becomes even greater if the wall thickness of the upper smoke tube end is reduced in the sense of the previous measures.
  • the part of the Flue gas pipe is preferably formed seamlessly or in one piece, one can counteract these risks to the extent that there is no longer any harmful joint stress above the collecting trough.
  • targeted measures for secure axial holding of the uppermost single pipe of the flue gas pipe can then be carried out within the collecting pan area, such as a particularly pronounced centering within the collecting pan.
  • support webs can also be provided in the area of the passage opening between the cover plate and the flue gas pipe, for example by appropriate shaping on the cover plate.
  • the collecting trough is preferably communicatively connected to its interior via at least one drain opening in the flue gas pipe, since, as already mentioned, a drain of moisture in the interior of the flue gas pipe is considered to be harmless.
  • this drain opening can be left out in the bottom of the catch pan. It is sufficient to form superficial channels in the bottom of the drip pan, which extend into the interior of the flue gas pipe. This can make manufacturing more complicated Avoid drilling.
  • no special work measures are required on the individual pipes of the flue gas pipe itself.
  • the function of the drip pan as an evaporation element and the function as a discharge element can be combined. But you can also work with evaporation in certain cases, claim 11 is a measure to increase the efficiency of evaporation.
  • a combination of drainage and evaporation measures can in particular prevent the risk that one or more drainage openings of the drip pan gradually become blocked during operation.
  • a function of the drain pan alone as an evaporation element is also particularly suitable if the construction according to the invention serves as a safety measure for an additional covering of the passage opening by an outlet housing.
  • the single figure is composed of two radial sections through a chimney head according to the invention, of which the area shown on the left in the figure is cut outside of ventilation ducts and the area shown on the right in the figure is cut through ventilation channels.
  • the chimney head shown relates to a multi-layered house chimney with a flue gas pipe 2, a thermal insulation layer 4 surrounding it and a supporting jacket 6, which is surrounded on the outside by a wall 8.
  • the flue gas pipe is composed of axially successive individual pipes that are mutually jointed on the face side, which preferably consist of fireclay, but optionally also of ceramic or glass.
  • the thermal barrier coating is usually formed from mineral fiber molded pieces.
  • the casing 8 shown at a distance from the outer surface of the support casing 6 is only one example of many possible outer claddings of the chimney head.
  • the upper end face of the support casing 6 and the wall 8 are covered by a cover plate 10, for which a variety of different materials can be used.
  • a cover plate 10 for which a variety of different materials can be used.
  • An embodiment made of concrete, fiber cement or metal is preferred.
  • the cover plate 10 has a central opening 12 through which the flue gas pipe 2 is continued upwards.
  • the flue gas pipe 2 is radially spaced from the edge of the opening 12, and individual spacers, not shown, can be provided over the circumference.
  • the thermal insulation layer 4 is axially set back with respect to the support casing 6 and has an upper end 14.
  • a collecting trough 20 Arranged as a front cover over the upper end 14 of the thermal insulation layer 4 below the through opening 18 is a collecting trough 20 which, with its collecting volume 22, has a greater radial extent than the outer edge of the through opening 18 (or inner edge of the opening 12).
  • the sump 20 has a perforated ring-like bottom 24, which is arranged as part of the flue gas pipe 2 between successive axially following parts 26 and 28 of the flue gas pipe.
  • the diameter of the hole in the bottom 24 corresponds to the inside diameter of the flue gas pipe 2.
  • the parts 26 and 28 and the bottom 24 of the collecting trough 20 are each sealingly connected to one another in the usual manner on the end face by means of a sealing compound.
  • the upper part 28 of the flue gas pipe is formed in one piece without a joint and can be made thinner-walled than the lower part 26 in a manner not shown.
  • the upper part 28 and the collecting trough 20 are preferably designed as one component, in particular in one piece. Accordingly, the same materials as those of the flue gas pipe 2 are particularly suitable as materials for the collecting trough.
  • a centering step 30 is formed, in which the engages the upper end of the lower part 26 of the flue gas pipe 2 centered.
  • the bottom of the collecting trough 20 extends in close proximity to the support casing 6.
  • a jacket 32 extends from the bottom 24 of the collecting trough 20 like a pot and forms an upper edge 34 of the collecting trough 20, which runs horizontally and opposite the underside of the cover plate 10 forms a passage 36 for the rear ventilation air flowing from the rear ventilation channels 16 into the passage opening 18.
  • the inner surface of the jacket 32 of the collecting trough 20 extends conically from the radially outside at the upper edge 34 of the collecting trough to radially inward in the region of the upper side 38 of the bottom 24 of the collecting trough.
  • Inside the top 38 of the bottom 24 are some radially extending channels 40 distributed in the circumferential direction, which run radially inside with a smaller axial height into the interior of the flue gas pipe 2 and thereby form drain openings 42 for liquid, which is collected in the drip pan 20 and via the Drain openings 42 in the interior of the flue gas pipe 2 is derived.
  • the reset on the top 38 of the bottom 24 of the drip pan 20 is not only limited to the drain openings with respect to the channels 40, but is formed all the way round so that a centering surface 44 for the upper part 28 of the flue gas pipe is formed with a relatively long axial extension.
  • the collecting volume 22 above the top 38 of the bottom 24 of the collecting trough 20 is also at least partially occupied by an area-increasing evaporation ribbing 46.
  • An outlet housing 48 is arranged above the passage opening 18.
  • This has supports 50 distributed over the circumference of the chimney head, at the lower ends of which a clamping device 52 is arranged, by means of which the outlet housing is clamped onto the inner edge of the opening 12 in the cover plate 10 with an adjustable spread.
  • the supports 50 carry a cover part 54 which is designed as a substantially horizontally extending perforated disc and the outer edge 56 of which is angled obliquely downwards, the angling continuing approximately in an outer bevel 58 of the upper side of the cover plate 10.
  • a cylindrical tube piece 60 extends centrally from the cover part 54 and supports the outer circumferential surface of the upper part 26 of the flue gas tube 2 on the circumference with a slight radial play.
  • the entire outlet housing 48 is combined into one structural unit and preferably consists of corrosion-resistant steel.
  • the chimney head according to the invention can be assembled using conventional means and simple components.
  • the advantage of the known chimney heads of the generic type can be retained, to combine an axial outlet of the flue gas from the flue gas pipe with a radially distanced deflection of the exiting ventilation air, as shown even with a certain further labyrinth-like deflection of the ventilation air outwards and downwards in the area of the beveled and possibly the outer edge 56, which is further developed by means not shown.
  • the cross sections of the rear ventilation air from the rear ventilation channels 16 to the outlet into the free atmosphere can be selected without undesired cross-sectional constrictions.
  • outlet openings 42 that may be present, complete decoupling of the flue gas air and the rear ventilation air is ensured.
  • the drain openings 42 regularly have such a small cross section that they can be practically disregarded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chimneys And Flues (AREA)
  • Tents Or Canopies (AREA)
  • Building Environments (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The invention relates to a chimney cowl for rear-ventilated multi-layered domestic chimneys which have, in their longitudinal direction, at least one flue gas pipe (2) and at least one rear-ventilating duct (16), with an upper cover plate (10) for the chimney, which has at least one opening (12), through which a flue gas pipe (2) projects upwards and which forms, with the outer circumferential surface of the flue gas pipe, a passage opening (18) for the rear-ventilating gas. According to the invention, provision is made for a collecting trough (20) for the moisture passing downwards through the passage opening (18) to be arranged below the cover plate (10) and form at least one outlet (36), by which the respective rear-ventilating duct (16) communicates with the passage opening (18). <IMAGE>

Description

Die Erfindung bezieht sich auf einen Schornsteinkopf gemäß dem Oberbegriff von Anspruch 1. Ein solcher Schornsteinkopf ist aus der DE-OS 3629249, insbesondere Fig. 1, sowie der DE-OS 3438696 bekannt. Bei der erstgenannten Veröffentlichung ist dabei das Rauchgasrohr selbst durch die Abdeckplatte für den Schornstein hindurchgeführt, während im Fall der zweitgenannten Veröffentlichung ein funktionell zu dem Rauchgasrohr gehörender Einsatzteil durch die Abdeckplatte nach oben ragt.The invention relates to a chimney head according to the preamble of claim 1. Such a chimney head is known from DE-OS 3629249, in particular Fig. 1, and DE-OS 3438696. In the first-mentioned publication, the flue gas pipe itself is passed through the cover plate for the chimney, while in the case of the second-mentioned publication, an insert part which is functionally associated with the flue gas pipe projects upwards through the cover plate.

Bei den bekannten Schornsteinköpfen ist über der Durchtrittsöffnung oberhalb der Abdeckplatte ein Austrittsgehäuse angeordnet, welches die Durchtrittsöffnung nach oben hin abdeckt und im Falle der erstgenannten Veröffentlichung als besondere Führung für die Hinterlüftungsluft zur Seite hin ausgebildet ist. Dadurch wird mindestens einem direkten Regeneintritt von oben her durch die Durchtrittsöffnung vorgebeugt. Es kann jedoch vorkommen, daß bei besonderen Umständen, z.B. sehr tiefen Außentemperaturen, sich an der oberhalb der Durchtrittsöffnung befindlichen Fläche des Austrittsgehäuses und in dem von der Hinterlüftungsluft umströmten Bereich der Abdeckplatte Kondensat bildet, welches in den Schornstein zurück abtropft. In der erstgenannten Vorveröffentlichung hat man zur Verringerung dieses Effektes bereits in Betracht gezogen, die oberhalb der Durchlaßöffnung angeordnete Fläche des Austrittsgehäuses so geneigt anzuordnen, daß Kondensflüssigkeit an dieser Fläche radial nach außen über die Durchtrittsöffnung hinaus zum Abfließen geleitet wird. Eine derartige Herstellung des Austrittsgehäuses ist jedoch relativ aufwendig, ohne daß ein Abtropfen von Kondenswasser in den Schornstein hinein vollständig vermieden werden kann.In the known chimney heads, an outlet housing is arranged above the through-opening above the cover plate, which covers the through-opening at the top and, in the case of the first-mentioned publication, is designed as a special guide for the ventilation air to the side. As a result, at least one direct entry of rain from above is prevented through the passage opening. However, it can happen that in special circumstances, for example very low outside temperatures, condensate forms on the surface of the outlet housing above the passage opening and in the area of the cover plate which is surrounded by the rear ventilation air and drips back into the chimney. In the first-mentioned prior publication, one has already considered to reduce this effect, that above the passage opening Arrange arranged surface of the outlet housing so that it is inclined so that condensed liquid on this surface is directed radially outward beyond the passage opening for draining. Such a production of the outlet housing is, however, relatively complex, without condensate dripping into the chimney being able to be completely avoided.

Darüber hinaus besteht auch bei relativ kompliziert aufgebauten Austrittsgehäusen immer noch eine Restgefahr, daß Regenwasser durch Wind in den Bereich der Durchtrittsöffnung getrieben wird. Zwar hat man hierzu auch schon in der erstgenannten Vorveröffentlichung in Betracht gezogen, an der Oberseite der Abdeckplatte ein Wasserableitsystem vorzusehen; dadurch kann jedoch ein direkter Eintrieb von Regenwasser in die Durchtrittsöffnung auch nicht unwirksam gemacht werden.In addition, even in the case of outlet housings of relatively complicated construction, there is still a residual risk that rainwater will be driven into the area of the passage opening by wind. To this end, consideration has already been given to providing a water drainage system on the top of the cover plate in the first-mentioned prior publication; however, this does not render a direct drive of rainwater into the passage opening ineffective.

Der Erfindung liegt die Aufgabe zugrunde, unter Vermeidung der oben genannten Nachteile einen neuen Weg aufzuzeigen, dem Problem des Eintritts von Feuchtigkeit, insbesondere Kondenswasser, durch die Durchtrittsöffnung in den Schornstein Herr zu werden.The invention is based on the object, while avoiding the disadvantages mentioned above, of demonstrating a new way of mastering the problem of the entry of moisture, in particular condensation, through the passage opening into the chimney.

Zur Lösung dieser Aufgabe ist ein Schornsteinkopf gemäß dem Oberbegriff von Anspruch 1 mit den kennzeichnenden Merkmalen von Anspruch 1 ausgebildet.To achieve this object, a chimney head is designed according to the preamble of claim 1 with the characterizing features of claim 1.

Nach der Erfindung wird die Tatsache, daß Feuchtigkeit durch die Durchtrittsöffnung für das Hinterlüftungsgas nach innen in den Schornstein hinein eintritt, von vorneherein nicht ausgeschlossen und diese Feuchtigkeit dafür nach Eintritt in den Schornstein entweder durch Verdunstung oder durch Ablauf unschädlich gemacht. Es hat sich gezeigt, daß man dabei im Grundsatz sogar ganz ohne Austrittsgehäuse auskommen kann. Besonders bewährt sich die erfindungsgemäße Ausbildung des Schornsteinkopfes jedoch als Sicherungsmaßnahme in Verbindung mit zusätzlichen Austrittsgehäusen. Diese können dann jedoch besonders einfach ausgebildet sein (vgl. Ansprüche 13 ff.).According to the invention, the fact that moisture enters the chimney through the passage opening for the rear ventilation gas is not excluded from the outset, and this moisture after entry into the chimney either by evaporation or rendered harmless by expiry. It has been shown that, in principle, one can get by without an outlet housing. However, the design of the chimney head according to the invention has proven particularly useful as a safety measure in conjunction with additional outlet housings. However, these can then be of particularly simple design (cf. claims 13 ff.).

Es ist an sich bekannt, eine Kondensatsammlerwanne bereits in einem Schornsteinfuß anzuordnen, um innerhalb und außerhalb des Rauchgasrohres eines Schornsteins ablaufendes Kondensat zu sammeln und abzuführen. Diese Maßnahme setzt jedoch bereits voraus, daß Feuchtigkeit bereits in den außerhalb des Rauchgasrohres gelegenen Schornsteinbereichen entsteht und abgeführt werden muß, was, jedenfalls im Hinblick auf durch die Durchtrittsöffnung eintretende Feuchtigkeit, nach der Erfindung gerade verhindert wird. Ein Herablaufen von Feuchtigkeit innerhalb eines Rauchgasrohres wird auch im Rahmen der Erfindung als unschädlich angenommen und sogar weiterbildend ausgenutzt.It is known per se to arrange a condensate collector trough in a chimney base in order to collect and discharge condensate that runs off inside and outside the flue gas pipe of a chimney. However, this measure already presupposes that moisture already arises in the chimney areas located outside the flue gas pipe and must be removed, which, at least with regard to moisture entering through the passage opening, is precisely prevented according to the invention. A running down of moisture within a flue gas pipe is also assumed to be harmless within the scope of the invention and is even used for further training.

Der nach der Erfindung vorgesehene Durchlaß, welcher von der Auffangwanne gebildet ist, kann grundsätzlich von mindestens einer Durchbrechung derselben gebildet werden, z.B. von über den Umfang der Auffangwanne verteilten Öffnungen, je nach den Raumverhältnissen mehr oder minder in Umfangsrichtung oder vertikal verlaufenden Durchtrittsschlitzen. Dies erfordert jedoch einen relativ großen Bauaufwand der Auffangwanne, da nur unter derartigen Öffnungen Flüssigkeit gesammelt werden kann. Es empfiehlt sich daher, den Durchlaß für den Hinterlüftungskanal nur einseitig durch den freien Rand der Auffangwanne zu begrenzen und zur Begrenzung der übrigen Bereiche des Durchlasses andere Bauteile des Schornsteines zu verwenden, wie insbesondere nach Anspruch 5 die Unterseite der Abdeckplatte.The passage provided according to the invention, which is formed by the collecting trough, can in principle be formed by at least one opening thereof, for example by openings distributed over the circumference of the collecting trough, depending on the spatial conditions, more or less circumferential or vertical passage slots. However, this requires a relatively large amount of construction of the collecting trough, since liquid can only be collected under such openings. It is therefore advisable to limit the passage for the rear ventilation duct only on one side through the free edge of the collecting trough and to use other chimney components to limit the other areas of the passage, in particular according to Claim 5 the bottom of the cover plate.

Grundsätzlich ist es möglich, die Auffangwanne entweder an einer Schornsteinummantelung oder an der Abdeckplatte oder an einem sonstigen Bauteil des Schornsteins zu befestigen. Bevorzugt wird die Auffangwanne jedoch von dem Rauchgasrohr getragen. Dadurch wird zunächst die Möglichkeit geschaffen, am Rauchgasrohr selbst herabrinnendes Kondensat zuverlässig aufzufangen. Wenn die Auffangwanne von dem Rauchgasrohr getragen wird, bewegt sie sich mit diesem zusammen auch in axialer Richtung bei thermischen Expansionen und Kontraktionen des Rauchgasrohres. Die für die Kompensation derartiger thermisch bedingter Bewegungen erforderliche Dehnfuge zwischen Auffangwanne und sonstigen Bauteilen des Schornsteins kann dabei in besonders vorteilhafter Weise zugleich als der Durchlaß für die Hinterlüftungsluft unter nur geringfügiger Vergrößerung des sonst erforderlichen axialen Abstandes nutzbar gemacht werden.In principle, it is possible to attach the sump either to a chimney casing or to the cover plate or to another component of the chimney. However, the collecting trough is preferably carried by the flue gas pipe. This initially creates the possibility of reliably collecting condensate from the flue gas pipe itself. If the collecting trough is carried by the flue gas pipe, it moves together with the flue gas pipe in the axial direction during thermal expansion and contraction of the flue gas pipe. The expansion joint between the sump and other components of the chimney required for the compensation of such thermally-induced movements can be used in a particularly advantageous manner at the same time as the passage for the ventilation air with only a slight increase in the otherwise required axial distance.

Die Weiterbildung nach Anspruch 3 bezieht die Auffangwanne unmittelbar in den Aufbau des Rauchgasrohres ein, was eine Ausbildung mindestens der dem freien Innenquerschnitt des Rauchgasrohres nahen Elemente der Auffangwanne aus für Rauchgasrohre in Schornsteinen geeigneten Materialien voraussetzt, beispielsweise aus Schamotte, Keramik oder Glas. Diese Materialien können auch für die ganze Auffangwanne Verwendung finden. Diese Bauweise verbessert und vereinfacht noch die Abdichtungsmöglichkeiten zwischen Auffangwanne und Rauchgasrohr, da vertikale Fugen zwischen beiden Bauelementen ganz vermieden werden können. Außerdem ist ein einfacher Zusammenbau gewährleistet. Insbesondere kann die Auffangwanne mit dem oberhalb von ihr folgenden Teil des Rauchgasrohres zu einer vorgefertigten Einheit zusammengefaßt werden.The development according to claim 3 includes the drip pan directly in the construction of the flue gas pipe, which requires formation of at least the elements of the drip pan near the free inner cross section of the flue gas pipe from materials suitable for flue gas pipes in chimneys, for example made of fireclay, ceramic or glass. These materials can also be used for the entire drip pan. This design improves and simplifies the sealing options between the collecting trough and the flue gas pipe, since vertical joints between the two components can be completely avoided. Easy assembly is also guaranteed. In particular, the drip pan with the part of the flue gas pipe that follows it can be combined to form a prefabricated unit.

Die Zentrierungsmöglichkeit nach Anspruch 4 stellt in einfacher Weise dabei eine zuverlässig axiale Ausrichtung der Bauelemente des Rauchgasrohres einschließlich der Auffangwanne sicher.The centering option according to claim 4 ensures in a simple manner a reliable axial alignment of the components of the flue gas pipe including the collecting trough.

Wenn im Sinne von Anspruch 6 der über der Auffangwanne angeordnete Teil des Rauchgasrohres dünnwandiger ausgebildet ist, wird der radiale Innenrand der Durchtrittsöffnung im Vergleich zu Ausführungsformen mit gleichbleibender Wandstärke des Rauchgasrohres radial nach innen verlegt. Dadurch kann bei gleich großem freien Durchlaßquerschnitt der Durchtrittsöffnung auch der an der Abdeckplatte gegenüberliegende äußere Rand der Durchtrittsöffnung weiter radial nach innen verlegt werden. Damit wird sichergestellt, daß von der Unterkante der Durchtrittsöffnung an der Abdeckplatte herabtropfende Feuchtigkeit zuverlässig von dem radial weiter nach außen erstreckbaren Auffangvolumen der Auffangwanne aufgefangen werden kann. Zugleich gewinnt man bei gleichbleibenden allgemeinen Schornsteinabmessungen radialen Einbauraum für die Auffangwanne zwischen dem Rauchgasrohr und der umfangsseitig an die Auffangwanne anschließenden Schale des Schornsteins, im allgemeinen seiner Stützummantelung.If, in the sense of claim 6, the part of the flue gas pipe arranged above the collecting trough is made thinner, the radial inner edge of the passage opening is laid radially inwards in comparison to embodiments with a constant wall thickness of the flue gas pipe. As a result, with the same free passage cross section of the passage opening, the outer edge of the passage opening opposite on the cover plate can also be moved radially inwards. This ensures that moisture dripping from the lower edge of the passage opening on the cover plate can be reliably collected by the collecting volume of the collecting trough which can be extended radially outward. At the same time, with the general chimney dimensions remaining the same, radial installation space for the collecting trough between the flue gas pipe and the shell of the chimney adjoining the peripheral side of the chimney, generally its supporting casing, is obtained.

Der über die Abdeckplatte hinausragende Teil des Rauchgasrohres ist besonderen Beanspruchungen in seitlicher Richtung ausgesetzt, z.B. durch Windeinflüsse, aber auch durch Ausübung ungewollten seitlichen Drucks bei Schornsteinreinigungsarbeiten. Dadurch kann es zu unerwünschten seitlichen Beanspruchungen im Fugenbereich zwischen das Rauchgasrohr bildenden Einzelrohren kommen. Die Gefahr wird dabei noch größer, wenn die Wandstärke des oberen Rauchrohrendes im Sinne der vorhergehenden Maßnahmen reduziert ist. Indem der über der Auffangwanne angeordnete Teil des Rauchgasrohres vorzugsweise fugenlos bzw. einstückig ausgebildet wird, kann man diesen Risiken insoweit entgegenwirken, daß es zu keiner schädlichen Fugenbeanspruchung mehr oberhalb der Auffangwanne kommt. Innerhalb des Auffangwannenbereichs kann man dann gesonderte gezielte Maßnahmen zur sicheren axialen Halterung des obersten Einzelrohres des Rauchgasrohres vornehmen, wie eine besonders ausgeprägt ausgebildete Zentrierung innerhalb der Auffangwanne. Alternativ oder zusätzlich kann man auch noch im Bereich der Durchtrittsöffnung Stützstege zwischen der Abdeckplatte und dem Rauchgasrohr vorsehen, z.B. durch entsprechende Anformung an der Abdeckplatte.The part of the flue gas pipe protruding beyond the cover plate is exposed to particular stresses in the lateral direction, for example due to wind influences, but also due to the application of unwanted lateral pressure during chimney cleaning work. This can lead to undesirable lateral stresses in the joint area between the individual pipes forming the flue gas pipe. The risk becomes even greater if the wall thickness of the upper smoke tube end is reduced in the sense of the previous measures. By the part of the Flue gas pipe is preferably formed seamlessly or in one piece, one can counteract these risks to the extent that there is no longer any harmful joint stress above the collecting trough. Separate, targeted measures for secure axial holding of the uppermost single pipe of the flue gas pipe can then be carried out within the collecting pan area, such as a particularly pronounced centering within the collecting pan. As an alternative or in addition, support webs can also be provided in the area of the passage opening between the cover plate and the flue gas pipe, for example by appropriate shaping on the cover plate.

Im erweiterten Oberbegriff von Anspruch 8 ist auf eine Bauweise des Schornsteinkopfes Bezug genommen, wie sie insbesondere aus Fig. 1 der eingangs erstgenannten Veröffentlichung, der DE-OS 3629249, bekannt ist. Bei dieser bekannten Anordnung ist ein oben zurückgesetztes Ende einer das Rauchgasrohr umgebenden Wärmedämmschicht unmittelbar unter der Durchtrittsöffnung angeordnet. In die Wärmedämmschicht gelangende Feuchtigkeit setzt jedoch die Wärmedämmwirkung der Wärmedämmschicht herab. Anspruch 8 sieht eine Anordnung der Auffangwanne vor, in welcher das obere Ende der Wärmedämmschicht durch die Auffangwanne deckelartig abgeschlossen ist.In the extended preamble of claim 8, reference is made to a construction of the chimney head, as is known in particular from FIG. 1 of the publication mentioned at the beginning, DE-OS 3629249. In this known arrangement, an end set back at the top of a thermal insulation layer surrounding the flue gas pipe is arranged directly below the passage opening. Moisture entering the thermal insulation layer, however, reduces the thermal insulation effect of the thermal insulation layer. Claim 8 provides an arrangement of the drip pan, in which the upper end of the thermal insulation layer is closed off in a lid-like manner by the drip pan.

Vorzugsweise ist die Auffangwanne über mindestens eine Ablauföffnung im Rauchgasrohr mit dessen Innenraum kommunizierend verbunden, da, wie bereits erwähnt, ein Ablauf von Feuchtigkeit im Innenraum des Rauchgasrohres als unschädlich angesehen wird. Bei Einbeziehung der Ablaufwanne in den Aufbau des Rauchgasrohres kann diese Ablauföffnung unmittelbar im Boden der Auffangwanne ausgespart sein. Es reicht dabei aus, im Boden der Auffangwanne oberflächliche Rinnen zu bilden, die sich bis in den Innenraum des Rauchgasrohres hinein erstrecken. Dadurch kann man die Herstellung komplizierter Bohrungen vermeiden. Außerdem sind keine besonderen Arbeitsmaßnahmen an den Einzelrohren des Rauchgasrohres selbst erforderlich.The collecting trough is preferably communicatively connected to its interior via at least one drain opening in the flue gas pipe, since, as already mentioned, a drain of moisture in the interior of the flue gas pipe is considered to be harmless. When the drain pan is included in the construction of the flue gas pipe, this drain opening can be left out in the bottom of the catch pan. It is sufficient to form superficial channels in the bottom of the drip pan, which extend into the interior of the flue gas pipe. This can make manufacturing more complicated Avoid drilling. In addition, no special work measures are required on the individual pipes of the flue gas pipe itself.

Die Funktion der Auffangwanne als Verdunstungselement und die Funktion als Ableitelement können miteinander vereint sein. Man kann aber auch in bestimmten Fällen allein mit Verdunstung arbeiten, wobei Anspruch 11 eine Maßnahme zur Erhöhung des Wirkungsgrades der Verdunstung wiedergibt. Eine Kombination von Ablauf- und Verdunstungsmaßnahmen kann insbesondere dem Risiko vorbeugen, daß eine oder mehrere Ablauföffnungen der Auffangwanne sich während des Betriebs allmählich verstopfen.The function of the drip pan as an evaporation element and the function as a discharge element can be combined. But you can also work with evaporation in certain cases, claim 11 is a measure to increase the efficiency of evaporation. A combination of drainage and evaporation measures can in particular prevent the risk that one or more drainage openings of the drip pan gradually become blocked during operation.

Wenn auch die Ableitung von Feuchtigkeit aus der Auffangwanne nach innen in das Rauchgasrohr wegen ihrer einfachen konstruktiven Gestaltbarkeit wie erwähnt bevorzugt ist, so kommt doch auch eine Ableitung nach außen ebenfalls in Frage, insbesondere über die hierfür zu durchbrechende Außenschale des Schornsteins ins Freie bzw. auf die Dachfläche.Although the removal of moisture from the drip pan inwards into the flue gas pipe is preferred because of its simple structural design, as mentioned above, discharge to the outside is also an option, in particular via the outer shell of the chimney to be broken through to the outside or open the roof area.

Eine Funktion der Ablaufwanne allein als Verdunstungselement kommt insbesondere auch dann in Frage, wenn der erfindungsgemäße Aufbau als Sicherungsmaßnahme einer zusätzlichen Überdeckung der Durchtrittsöffnung durch ein Austrittsgehäuse dient.A function of the drain pan alone as an evaporation element is also particularly suitable if the construction according to the invention serves as a safety measure for an additional covering of the passage opening by an outlet housing.

Es wurde bereits erwähnt, daß im Rahmen der Erfindung relativ einfache Konstruktionen für das Austrittsgehäuse ausreichen. Hierfür können an sich bekannte einfache Konstruktionen Anwendung finden. Im Rahmen der Erfindung ist insbesondere an Austrittsgehäuse mit den Merkmalen der Ansprüche 14 bis 18 gedacht.It has already been mentioned that relatively simple constructions for the outlet housing are sufficient within the scope of the invention. Simple constructions known per se can be used for this. Within the scope of the invention, in particular outlet housing with the features of claims 14 to 18 is intended.

Die Erfindung wird im folgenden anhand einer schematischen Zeichnung an einem Ausführungsbeispiel noch näher erläutert.The invention is explained in more detail below with reference to a schematic drawing using an exemplary embodiment.

Die einzige Figur ist aus zwei radialen Schnitten durch einen Schornsteinkopf gemäß der Erfindung zusammengesetzt, von denen der in der Figur links dargestellte Bereich außerhalb von Hinterlüftungskanälen, der in der Figur rechts dargestellte Bereich durch Hinterlüftungskanäle geschnitten ist.The single figure is composed of two radial sections through a chimney head according to the invention, of which the area shown on the left in the figure is cut outside of ventilation ducts and the area shown on the right in the figure is cut through ventilation channels.

Der dargestellte Schornsteinkopf betrifft einen mehrschaligen Hausschornstein mit einem Rauchgasrohr 2, einer dieses umgebenden Wärmedämmschicht 4 und einer Stützummantelung 6, die außen von einer Ummauerung 8 umgeben ist.The chimney head shown relates to a multi-layered house chimney with a flue gas pipe 2, a thermal insulation layer 4 surrounding it and a supporting jacket 6, which is surrounded on the outside by a wall 8.

Das Rauchgasrohr ist aus axial aufeinander folgenden und miteinander stirnseitig verfugten Einzelrohren zusammengesetzt, die vorzugsweise aus Schamotte, gegebenenfalls aber auch aus Keramik oder Glas bestehen. Die Wärmedämmschicht wird üblicherweise aus Mineralfaserformstücken gebildet.The flue gas pipe is composed of axially successive individual pipes that are mutually jointed on the face side, which preferably consist of fireclay, but optionally also of ceramic or glass. The thermal barrier coating is usually formed from mineral fiber molded pieces.

Die mit Abstand zur äußeren Mantelfläche der Stützummantelung 6 dargestellte Ummantelung 8 stellt nur ein Beispiel von vielen möglichen Außenverkleidungen des Schornsteinkopfes dar.The casing 8 shown at a distance from the outer surface of the support casing 6 is only one example of many possible outer claddings of the chimney head.

Das obere stirnseitige Ende der Stützummantelung 6 und der Ummauerung 8 sind durch eine Abdeckplatte 10 überdeckt, für die eine Vielzahl unterschiedlicher Materialien Anwendung finden kann. Bevorzugt ist eine Ausbildung aus Beton, Faserzement oder Metall.The upper end face of the support casing 6 and the wall 8 are covered by a cover plate 10, for which a variety of different materials can be used. An embodiment made of concrete, fiber cement or metal is preferred.

Die Abdeckplatte 10 weist eine zentrale Öffnung 12 auf, durch welche das Rauchgasrohr 2 nach oben fortgesetzt ist. Das Rauchgasrohr 2 hat dabei radialen Abstand zum Rand der Öffnung 12, wobei über den Umfang einzelne nicht dargestellte Abstandshalter vorgesehen sein können.The cover plate 10 has a central opening 12 through which the flue gas pipe 2 is continued upwards. The flue gas pipe 2 is radially spaced from the edge of the opening 12, and individual spacers, not shown, can be provided over the circumference.

Die Wärmedämmschicht 4 ist gegenüber der Stützummantelung 6 axial zurückgesetzt und weist ein oberes Ende 14 auf. Rings um die Wärmedämmschicht 4 sind über den Umfang des Schornsteins Hinterlüftungskanäle 16 verteilt, in denen gemäß den dargestellten Pfeilen Hinterlüftungsluft nach oben steigt und oberhalb des oberen Endes 14 der Wärmedämmschicht durch die Durchtrittsöffnung 18 nach oben tritt, welche zwischen dem Rand der Öffnung 12 und der äußeren Mantelfläche des Rauchgasrohres 2 gebildet ist.The thermal insulation layer 4 is axially set back with respect to the support casing 6 and has an upper end 14. Around the thermal barrier layer 4 are over the circumference distributed in the chimney, rear ventilation channels 16, in which, according to the arrows shown, rear ventilation air rises and passes above the upper end 14 of the thermal insulation layer through the passage opening 18, which is formed between the edge of the opening 12 and the outer lateral surface of the flue gas pipe 2.

Als stirnseitiger Deckel über dem oberen Ende 14 der Wärmedämmschicht 4 ist unterhalb der Durchtrittsöffnung 18 eine Auffangwanne 20 angeordnet, die mit ihrem Auffangvolumen 22 eine größere radiale Erstreckung hat als der Außenrand der Durchtrittsöffnung 18 (bzw. Innenrand der Öffnung 12).Arranged as a front cover over the upper end 14 of the thermal insulation layer 4 below the through opening 18 is a collecting trough 20 which, with its collecting volume 22, has a greater radial extent than the outer edge of the through opening 18 (or inner edge of the opening 12).

Die Auffangwanne 20 hat einen lochringartigen Boden 24, der als Bestandteil des Rauchgasrohres 2 zwischen aufeinander axial folgenden Teilen 26 und 28 des Rauchgasrohres angeordnet ist. Der Durchmesser des Lochs im Boden 24 entspricht dabei dem Innendurchmesser des Rauchgasrohres 2. Die Teile 26 und 28 und der Boden 24 der Auffangwanne 20 sind dabei in üblicher Weise jeweils stirnseitig durch Verfugungsmasse miteinander abdichtend verbunden.The sump 20 has a perforated ring-like bottom 24, which is arranged as part of the flue gas pipe 2 between successive axially following parts 26 and 28 of the flue gas pipe. The diameter of the hole in the bottom 24 corresponds to the inside diameter of the flue gas pipe 2. The parts 26 and 28 and the bottom 24 of the collecting trough 20 are each sealingly connected to one another in the usual manner on the end face by means of a sealing compound.

Der obere Teil 28 des Rauchgasrohres ist fugenlos einstückig ausgebildet und kann in nicht dargestellter Weise dünnwandiger als der untere Teil 26 ausgebildet sein.The upper part 28 of the flue gas pipe is formed in one piece without a joint and can be made thinner-walled than the lower part 26 in a manner not shown.

In ebenfalls nicht dargestellter Weise sind sogar der obere Teil 28 und die Auffangwanne 20 vorzugsweise als ein Bauteil, insbesondere einstückig, ausgebildet. Als Materialien für die Auffangwanne kommen dementsprechend insbesondere dieselben Materialien wie die des Rauchgasrohres 2 in Frage.In a manner also not shown, even the upper part 28 and the collecting trough 20 are preferably designed as one component, in particular in one piece. Accordingly, the same materials as those of the flue gas pipe 2 are particularly suitable as materials for the collecting trough.

An der Unterseite des Bodens 24 der Auffangwanne 20 ist eine Zentrierungsstufe 30 ausgebildet, in welche das obere Ende des unteren Teils 26 des Rauchgasrohres 2 zentriert eingreift.On the underside of the bottom 24 of the drip pan 20, a centering step 30 is formed, in which the engages the upper end of the lower part 26 of the flue gas pipe 2 centered.

Der Boden der Auffangwanne 20 erstreckt sich bis in nahe Nachbarschaft an die Stützummantelung 6. Parallel zu deren Innenmantelfläche erstreckt sich vom Boden 24 der Auffangwanne 20 ein Mantel 32 derselben topfartig nach oben und bildet einen oberen Rand 34 der Auffangwanne 20, der horizontal umläuft und gegenüber der Unterseite der Abdeckplatte 10 einen Durchlaß 36 für die aus den Hinterlüftungskanälen 16 in die Durchtrittsöffnung 18 strömende Hinterlüftungsluft bildet.The bottom of the collecting trough 20 extends in close proximity to the support casing 6. Parallel to its inner lateral surface, a jacket 32 extends from the bottom 24 of the collecting trough 20 like a pot and forms an upper edge 34 of the collecting trough 20, which runs horizontally and opposite the underside of the cover plate 10 forms a passage 36 for the rear ventilation air flowing from the rear ventilation channels 16 into the passage opening 18.

Die Innenfläche des Mantels 32 der Auffangwanne 20 erstreckt sich von radial außen am oberen Rand 34 der Auffangwanne konisch nach radial innen im Bereich der Oberseite 38 des Bodens 24 der Auffangwanne. Innerhalb der Oberseite 38 des Bodens 24 sind einige radial verlaufende Rinnen 40 in Umfangsrichtung verteilt, die radial innen mit geringerer axialer Höhe bis in den Innenraum des Rauchgasrohres 2 auslaufen und dabei Ablauföffnungen 42 für Flüssigkeit bilden, welche in der Auffangwanne 20 gesammelt wird und über die Ablauföffnungen 42 in den Innenraum des Rauchgasrohres 2 abgeleitet wird.The inner surface of the jacket 32 of the collecting trough 20 extends conically from the radially outside at the upper edge 34 of the collecting trough to radially inward in the region of the upper side 38 of the bottom 24 of the collecting trough. Inside the top 38 of the bottom 24 are some radially extending channels 40 distributed in the circumferential direction, which run radially inside with a smaller axial height into the interior of the flue gas pipe 2 and thereby form drain openings 42 for liquid, which is collected in the drip pan 20 and via the Drain openings 42 in the interior of the flue gas pipe 2 is derived.

Die Zurücksetzung an der Oberseite 38 des Bodens 24 der Auffangwanne 20 ist nicht nur auf die Ablauföffnungen in bezug auf die Rinnen 40 beschränkt, sondern so umlaufend ausgebildet, daß eine Zentrierungsfläche 44 für den oberen Teil 28 des Rauchgasrohres mit relativ langer axialer Erstreckung gebildet wird.The reset on the top 38 of the bottom 24 of the drip pan 20 is not only limited to the drain openings with respect to the channels 40, but is formed all the way round so that a centering surface 44 for the upper part 28 of the flue gas pipe is formed with a relatively long axial extension.

Das Auffangvolumen 22 oberhalb der Oberseite 38 des Bodens 24 der Auffangwanne 20 ist ferner von einer flächenvergrößernden Verdunstungsverrippung 46 mindestens teilweise eingenommen.The collecting volume 22 above the top 38 of the bottom 24 of the collecting trough 20 is also at least partially occupied by an area-increasing evaporation ribbing 46.

Über der Durchtrittsöffnung 18 ist ein Austrittsgehäuse 48 angeordnet. Dieses weist über den Umfang des Schornsteinkopfs verteilte Stützen 50 auf, an deren unteren Enden eine Klemmeinrichtung 52 angeordnet ist, mittels welcher das Austrittsgehäuse auf den Innenrand der Öffnung 12 in der Abdeckplatte 10 mit einstellbarer Spreizung aufgeklemmt ist. Die Stützen 50 tragen ein Abdeckteil 54, das als eine sich im wesentlichen horizontal erstreckende Lochscheibe ausgebildet ist und dessen Außenrand 56 schräg nach unten abgewinkelt ist, wobei sich die Abwinklung etwa in einer äußeren Abschrägung 58 der Oberseite der Abdeckplatte 10 fortsetzt. Von dem Abdeckteil 54 erstreckt sich zentral ein zylindrisches Rohrstück 60 nach oben, welches mit geringfügigem radialen Spiel die äußere Mantelfläche des oberen Teils 26 des Rauchgasrohres 2 umfangsseitig abstützt.An outlet housing 48 is arranged above the passage opening 18. This has supports 50 distributed over the circumference of the chimney head, at the lower ends of which a clamping device 52 is arranged, by means of which the outlet housing is clamped onto the inner edge of the opening 12 in the cover plate 10 with an adjustable spread. The supports 50 carry a cover part 54 which is designed as a substantially horizontally extending perforated disc and the outer edge 56 of which is angled obliquely downwards, the angling continuing approximately in an outer bevel 58 of the upper side of the cover plate 10. A cylindrical tube piece 60 extends centrally from the cover part 54 and supports the outer circumferential surface of the upper part 26 of the flue gas tube 2 on the circumference with a slight radial play.

Das ganze Austrittsgehäuse 48 ist zu einer Baueinheit zusammengefaßt und besteht vorzugsweise aus korrosionsbeständigem Stahl.The entire outlet housing 48 is combined into one structural unit and preferably consists of corrosion-resistant steel.

Man erkennt allgemein, daß bei dem Schornsteinkopf nach der Erfindung eine Montage mit bauüblichen Mitteln und einfachen Bauteilen möglich ist. Dabei kann der Vorteil der gattungsgemäßen bekannten Schornsteinköpfe beibehalten werden, einen axialen Austritt des Rauchgases aus dem Rauchgasrohr mit einer radialen distanzierten Umlenkung der austretenden Hinterlüftungsluft zu vereinen, wie dargestellt sogar unter gewisser weiterer labyrinthartiger Umlenkung der Hinterlüftungsluft nach außen und unten im Bereich des abgeschrägten und gegebenenfalls noch durch nicht dargestellte Mittel weiter ausgestalteten Außenrandes 56. Dabei kann man die Querschnitte der Hinterlüftungsluft von den Hinterlüftungskanälen 16 bis zum Austritt in die freie Atmosphäre ohne unerwünschte Querschnittseinschnürungen wählen.It can generally be seen that the chimney head according to the invention can be assembled using conventional means and simple components. The advantage of the known chimney heads of the generic type can be retained, to combine an axial outlet of the flue gas from the flue gas pipe with a radially distanced deflection of the exiting ventilation air, as shown even with a certain further labyrinth-like deflection of the ventilation air outwards and downwards in the area of the beveled and possibly the outer edge 56, which is further developed by means not shown. The cross sections of the rear ventilation air from the rear ventilation channels 16 to the outlet into the free atmosphere can be selected without undesired cross-sectional constrictions.

Mit Ausnahme der gegebenenfalls vorhandenen Ablauföffnungen 42 ist dabei eine vollständige Entkopplung von Rauchgasluft und Hinterlüftungsluft gewährleistet. Die Ablauföffnungen 42 haben dabei regelmäßig einen so kleinen Querschnitt, daß sie praktisch außer Betracht bleiben können.With the exception of any outlet openings 42 that may be present, complete decoupling of the flue gas air and the rear ventilation air is ensured. The drain openings 42 regularly have such a small cross section that they can be practically disregarded.

Claims (18)

1. Chimney cap for ventilated multi-leaf house chimneys which have in their longitudinal direction at least one smoke tube (2) and at least one venting channel (16), having an upper cover plate (10) for the chimney, which plate has at least one opening (12), through which a smoke tube (2) protrudes upwards and which forms with the outer circumferential surface of the smoke tube a through-opening (18) for the ventilation gas, characterised in that underneath the cover plate (10) a catching pan (20) is arranged for moisture seeping down through the through-opening (18) and forms at least one passage (36), through which the respective ventilation channel (16) is connected in a communicating manner with the through-opening (18).
2. Chimney cap according to Claim 1, characterised in that the catching pan (20) is borne by the smoke tube (2).
3. Chimney cap according to Claim 2, characterised in that the catching pan (20) has a bottom (24) which is like a perforated ring and, as a component part of the smoke tube (2), is arranged between axially successive parts (26, 28) of the same.
4. Chimney cap according to Claim 3, characterised in that on the bottom (24) of the catching pan (20) there is formed a centring surface (30, 44), interacting with the outer circumferential surface of at least one of the adjoining parts (26, 28) of the smoke tube (2).
5. Chimney cap according to one of Claims 2 to 3, characterised in that the passage (36) is formed between the upper edge (34) of the catching pan (20) and the underside of the cover plate (10), preferably with a distance in between of 4 to 10 cm.
6. Chimney cap according to one Claims 1 to 5, characterised in that the part (28) of the smoke tube (2) arranged over the catching pan (20) is formed with thinner walls than the lower part (26) of the smoke tube, preferably with less than half the wall thickness.
7. Chimney cap according to one of Claims 1 to 6, characterised in that the part (28) of the smoke tube (2) arranged over the catching pan (20) is formed without any joints.
8. Chimney cap according to one of Claims 1 to 7, in which the smoke tube (2) is surrounded by a heat-insulating layer (4), which is set back axially in the region of the chimney cap and for its part is surrounded by a supporting enclosure (6), characterised in that the catching pan (20) forms an upper termination of the heat-insulating layer (4) and/or is fitted snugly into the supporting enclosure (6).
9. Chimney cap according to one of Claims 2 to 8, characterised in that the catching pan (20) communicates via at least one outlet opening (42) in the smoke tube (2) with the inner space of the latter.
10. Chimney cap according to at least Claims 3 and 9, characterised in that the outlet opening (42) is made in the bottom (24) of the catching pan (20).
11. Chimney cap according to one of Claims 1 to 10, characterised in that the catching pan (20) is provided with a surface-enlarging evaporation ribbing (46).
12. Chimney cap according to one of Claims 8 to 11, characterised in that the catching pan (20) is combined with the part (28) of the smoke tube (2) following above it, to form a prefabricated unit.
13. Chimney cap according to one of Claims 1 to 12, characterised in that an outlet housing (48) is arranged above the through-opening (18).
14. Chimney cap according to Claim 13, characterised in that the outlet housing (48) is fastened to the cover plate (10) and supports circumferentially the region of the smoke tube (2) extending beyond the said cover plate.
15. Chimney cap according to Claim 14, characterised in that, for support, a cylindrical tube piece (60), preferably of about 5 cm in length, is provided.
16. Chimney cap according to one of Claims 13 to 15, characterised in that the outlet housing (48) has a cover part (54) which extends from the smoke tube (2) outwards with a projection beyond the through-opening, preferably extends 2 to 3 cm above the cover plate (10) and the outer edge (56) of which is preferably angled off obliquely downwards.
17. Chimney cap according to one of Claims 13 to 16, characterised in that the outlet housing (48) is clamped onto the inner edge of the opening (12) in the cover plate (10), preferably by adjustable spreading of the clamping device (52).
18. Chimney cap according to Claim 16 or 17, characterised in that the clamping device (52) is formed as a downward continuation of supports (50) of the cover part (54).
EP89110884A 1988-07-08 1989-06-15 Chimney cowl for ventilated multi-layered domestic chimneys Expired - Lifetime EP0349802B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89110884T ATE71688T1 (en) 1988-07-08 1989-06-15 CHIMNEY HEAD FOR VENTILATED MULTIPLE HOUSE CHIMNEYS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3823250 1988-07-08
DE3823250A DE3823250A1 (en) 1988-07-08 1988-07-08 CHIMNEY HEAD FOR VENTILATED MULTI-SHELLED HOUSE CHIMNEYS

Publications (2)

Publication Number Publication Date
EP0349802A1 EP0349802A1 (en) 1990-01-10
EP0349802B1 true EP0349802B1 (en) 1992-01-15

Family

ID=6358307

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89110884A Expired - Lifetime EP0349802B1 (en) 1988-07-08 1989-06-15 Chimney cowl for ventilated multi-layered domestic chimneys

Country Status (4)

Country Link
EP (1) EP0349802B1 (en)
AT (1) ATE71688T1 (en)
DE (3) DE8816542U1 (en)
HU (1) HU205648B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4123614A1 (en) * 1991-07-17 1993-01-28 Heribert Von Goewels CHIMNEY HEAD
DE9302673U1 (en) * 1993-02-24 1993-04-08 KLB Klimaleichtblock GmbH, 5450 Neuwied Mountable chimney head
DE19531225C1 (en) * 1995-08-24 1996-09-12 Waldsassen Ziegelwerk Ag Pipe section for multi-section ceramic inner pipe of chimney
DE29606539U1 (en) * 1996-04-10 1997-08-07 Interactive Holding B.V., Didam Attachment for an exhaust pipe of a heating system
GB201104173D0 (en) * 2011-03-11 2011-04-27 Cvs Energy Ltd Chimney attachment and method of fitting a flue liner in a chimney

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE509300C (en) * 1930-10-08 Arthur Spring Jacketed chimney
US2181338A (en) * 1938-06-22 1939-11-28 Robert P Moran Chimney
US3921509A (en) * 1973-11-16 1975-11-25 Jimmy L Curry Chimney cover assembly
DE3302889A1 (en) * 1983-01-28 1984-08-09 Schiedel GmbH & Co, 8000 München Chimney top
DE3324920C1 (en) * 1983-07-09 1984-10-11 Lenz & Dörrenberg, 5000 Köln Chimney
DE3408099A1 (en) * 1984-03-05 1985-09-19 Krauss Kaminwerke München-Geiselbullach GmbH & Co KG, 8037 Olching Multi-layered chimney
DE8509295U1 (en) * 1985-03-28 1985-08-14 A. Upmann Kamintürenfabrik, 4830 Gütersloh Expansion joint cladding for a chimney
DE3629249A1 (en) * 1986-08-28 1988-03-10 Schiedel Gmbh & Co HEAD FOR VENTILATED MULTI-SHELLED HOUSE CHIMNEYS

Also Published As

Publication number Publication date
EP0349802A1 (en) 1990-01-10
HUT57411A (en) 1991-11-28
HU205648B (en) 1992-05-28
DE58900724D1 (en) 1992-02-27
DE8816542U1 (en) 1989-11-16
ATE71688T1 (en) 1992-02-15
DE3823250A1 (en) 1990-01-11

Similar Documents

Publication Publication Date Title
EP0349802B1 (en) Chimney cowl for ventilated multi-layered domestic chimneys
EP0257636B2 (en) Top for ventilated multi-layered chimneys
DE3151327A1 (en) Chimney for carrying away flue gases
EP0724676B1 (en) Outlet component to be mounted in concrete floors in particular
EP0344730A1 (en) Chimney cowl for prefabricated chimneys, particularly a cover plate therefor
DE10127796C1 (en) Ventilator or flue has conical connector below roof which connects pipe above it with that below it, base of connector forming annular trough in which condensate collects and is run off through outlet
EP1597444B1 (en) Method and device for sealing parts that traverse thermal insulation
EP3736490B1 (en) Device comprising a hollow body with an opening at the top and a removable lid
EP0304909B1 (en) Chimney cowl
DE19605462C2 (en) Exhaust pipe for the roof duct
DE4123614C2 (en)
DE9100397U1 (en) Outlet casing for rear-ventilated house chimneys
DE9004120U1 (en) Outlet casing for the chimney head of a rear-ventilated house chimney
DE60004765T2 (en) PROTECTION DEVICE
DE4115802A1 (en) Tubular chimney-extension on building - accommodates tubular insert with top supporting flange and extending below it
CH663267A5 (en) CHIMNEY.
DE29811088U1 (en) Device for draining rain
DE10110584B4 (en) Roof - breather
DE9206009U1 (en) Chimney head
DE29809705U1 (en) End cover for an exhaust pipe
DE3878673T2 (en) CHIMNEY WITH CONDENSATE DRAINAGE.
DE29519286U1 (en) Chimney head for a steel chimney
CH254734A (en) Extraction device for chimneys, steam extractors, ventilation devices in stables, etc.
DE8500339U1 (en) Molded part with side opening for air and exhaust pipes
DE19531225C1 (en) Pipe section for multi-section ceramic inner pipe of chimney

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE FR IT LI NL

17P Request for examination filed

Effective date: 19900125

17Q First examination report despatched

Effective date: 19910311

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR IT LI NL

REF Corresponds to:

Ref document number: 71688

Country of ref document: AT

Date of ref document: 19920215

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

REF Corresponds to:

Ref document number: 58900724

Country of ref document: DE

Date of ref document: 19920227

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: KRAUSS KAMINWERKE

Effective date: 19921013

NLR1 Nl: opposition has been filed with the epo

Opponent name: BTG BAUTECHNIK GMBH & CO.

Opponent name: KRAUSS KAMINWERKE

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19940408

NLR2 Nl: decision of opposition
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19990611

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19990614

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19990615

Year of fee payment: 11

Ref country code: FR

Payment date: 19990615

Year of fee payment: 11

Ref country code: CH

Payment date: 19990615

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000615

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000630

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010101

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010228

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20010101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010403

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050615

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO