EP1116835A2 - Duct for chimneys or for exhaust lines - Google Patents

Duct for chimneys or for exhaust lines Download PDF

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Publication number
EP1116835A2
EP1116835A2 EP01100225A EP01100225A EP1116835A2 EP 1116835 A2 EP1116835 A2 EP 1116835A2 EP 01100225 A EP01100225 A EP 01100225A EP 01100225 A EP01100225 A EP 01100225A EP 1116835 A2 EP1116835 A2 EP 1116835A2
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EP
European Patent Office
Prior art keywords
shaft
elements
ceramic material
foamed ceramic
shaft according
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EP01100225A
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German (de)
French (fr)
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EP1116835A3 (en
Inventor
Willi Skoberne
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Individual
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Individual
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Publication of EP1116835A3 publication Critical patent/EP1116835A3/en
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    • 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 
    • F23J13/04—Joints; Connections
    • 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
    • E04F17/023—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 made of masonry, concrete or other stone-like material; Insulating measures and joints therefor
    • 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 
    • F23J2213/00—Chimneys or flues
    • F23J2213/20—Joints; Connections
    • F23J2213/202—Joints; Connections between duct or stack sections
    • 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
    • F23J2213/20—Joints; Connections
    • F23J2213/204—Sealing arrangements
    • 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 a shaft for chimneys or Exhaust pipes to accommodate an internal one, at a distance to the inner wall of the chimney or one Exhaust pipe for combustion plants, consisting of one another aligned and connected to each other on the front, prefabricated shaft elements made of mineral material.
  • Such shafts must have a fire resistance of 90 Minutes (fire resistance class F 90).
  • fire resistance class F 90 The one with it related requirement that the material used is not for such shafts, the usual type of cement-bound material easily met. In addition, the used Material but also a sufficient thermal insulation effect exhibit. This is necessary so that on the one hand in In the event of fire, an inadmissible heating of the outer surface of the Shaft is avoided, which leads to inflammation of could lead to neighboring flammable components; on the other hand but should also be too strong in normal operation Heat transfer can be prevented.
  • Manhole elements must not be too heavy for the To reduce transport costs and especially the Facilitate handling on site.
  • the usual cementitious materials are relatively heavy, so that further reduce the weight of each Manhole elements is only possible in that the length of the Manhole elements is reduced. But this increases for a given height, the number of required Manhole elements. This leads to an increased cost and Workload.
  • the object of the invention is therefore a shaft train the genre mentioned so that he not only all requirements regarding fire resistance and Isolation effect fulfilled, but that the individual Manhole elements even with a relatively large length are so light that they can be easily transported and especially easy to handle during assembly can be.
  • Density of this foamed ceramic material is very low, so that even relatively large shaft elements are still very much are light and therefore especially during assembly. are easy to use.
  • the thermal insulation effect made of foamed ceramic material Shaft very high, so that when used for chimneys Effort for thermal insulation of the interior Smoke pipe significantly reduced and the wall thickness of the Shaft can be chosen smaller.
  • the shaft has one high fire resistance, so that it meets the requirements of Fire resistance class F 90 met with certainty.
  • the foamed ceramic material preferably contains inorganic fillers, with which its properties, especially regarding the fire resistance duration and the Compressive strength, can be influenced even more favorably.
  • a special increase in the fire protection effect can be thereby achieve that the foamed ceramic material up to 39 percent by weight chemically bound water of crystallization contains.
  • the shaft elements in their on each other butting end faces each have a concentric annular groove have and that in the annular grooves of adjacent end faces a common annular connecting nipple was added is.
  • the connecting nipple preferably made of metal creates a mechanically stable connection of adjacent shaft elements, which are also against each other be centered; on the other hand bridges the metallic annular connection nipple the butt joint adjacent shaft elements and thereby prevents one possible flame penetration even if the butt joint due to mechanical or thermal influences or insufficient connection gapes.
  • the chimney shaft 1 shown in Fig. 1 takes up Smoke pipe 2 of a furnace on, for example, from Stainless steel and is surrounded by an insulating layer 3.
  • the smoke tube 2 provided with the insulating layer 3 is included the same distance on all sides concentric to the inner wall of the shaft 4 of the chimney shaft 1 arranged so that in between an annular gap 5 is formed.
  • the chimney 1 consists of several, each frontally connected to each other and to each other aligned, prefabricated shaft elements 6. In Fig. 1 two such shaft elements are shown.
  • Each shaft element 6 consists of foamed ceramic material based on aluminum oxide and silicon oxide. Water glass is used as a binder. Organic fillers can also be used.
  • the foamed ceramic material used for the chimney shaft 1 shown has closed pores which were formed by adding gas-forming chemicals during the casting process. The proportion of pores is selected so that the foamed ceramic material has a density of 0.5-1.7 g / cm 3 .
  • connection nipple 9 added, which consists of metal and essentially forms a cylinder.
  • connection nipple 9 each have an outer spring washer 10 or Rubber ring on the flat formed there Circumferential groove of the connecting nipple 9 is inserted and on the Inner wall 8a of the annular groove 8 comes to rest.
  • the connecting nipple 9 has a radially projecting one Circumferential rib or individual radially projecting knobs 11 on in an annular recess 12 at least one of the two end faces 7 is arranged.
  • the illustrated Embodiment have both meet and with each other, for example, by refractory gluing connected end faces 7 each such an annular Recess 12 so that in the area of the butt joint 13 between the two shaft elements 6 one of the ring grooves 8 on Circumferentially projecting annulus arises that the Receiving circumferential ribs or protruding knobs 11 and thereby the connection nipple 9 positively in its position holds in which he bridges the butt joint 13.
  • each shaft element 6 ' consists of foamed ceramic material based on Aluminum oxide and silicon oxide with water glass as a binder, as already in the previously described embodiment was explained.
  • Each at the junction of two shaft elements 6 ' is a connecting nipple 9 'bridging the butt joint 13' arranged on the inner wall 4 'of the shaft.
  • the example of Sheet metal existing connection nipple has a radial projecting circumferential rib or individual radially projecting Studs 11 'on in an annular recess 12' the shaft inner wall 4 'in the area of each butt joint 13' is arranged.
  • the connecting nipple 9 ' carries on it Outside rubber ring seals 15, each on the Shaft inner wall 4 'rest.
  • connection nipple 9 (Fig. 6) rectangular.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Thermal Insulation (AREA)
  • Joints Allowing Movement (AREA)

Abstract

The shaft holds an inner, spaced smoke pipe (2) or exhaust pipe for boiler units. The shaft has prefabricated shaft elements (6), which are aligned and connected at their end faces (7). The shaft elements are made of a foamed ceramic material based on aluminium oxide and silicon oxide with water glass as a binding agent. Preferably, the foamed ceramic material also has inorganic filler and up to 35% w/w of chemically bound crystal water.

Description

Die Erfindung betrifft einen Schacht für Schornsteine oder Abgasleitungen zur Aufnahme eines innenliegenden, mit Abstand zur Schachtinnenwand angeordneten Rauchrohres oder einer Abgasleitung für Feuerungsanlagen, bestehend aus miteinander fluchtenden und jeweils stirnseitig miteinander verbundenen, vorgefertigten Schachtelementen aus mineralischem Werkstoff.The invention relates to a shaft for chimneys or Exhaust pipes to accommodate an internal one, at a distance to the inner wall of the chimney or one Exhaust pipe for combustion plants, consisting of one another aligned and connected to each other on the front, prefabricated shaft elements made of mineral material.

Derartige Schächte müssen eine Feuerwiderstandsdauer von 90 Minuten (Feuerwiderstandsklasse F 90) aufweisen. Die damit verbundene Anforderung, daß das verwendete Material nicht brennbar sein darf, wird von dem für solche Schächte der eingangs genannten Gattung üblichen zementgebundenen Material ohne weiteres erfüllt. Darüber hinaus muß das verwendete Material aber auch eine ausreichende Wärmeisolationswirkung aufweisen. Dies ist erforderlich, damit einerseits im Brandfall eine unzulässige Erhitzung der Außenfläche des Schachtes vermieden wird, die zu einer Entzündung von benachbarten, brennbaren Bauteilen führen könnte; andererseits soll aber auch im normalen Betrieb eine zu starke Wärmeübertragung verhindert werden.Such shafts must have a fire resistance of 90 Minutes (fire resistance class F 90). The one with it related requirement that the material used is not for such shafts, the usual type of cement-bound material easily met. In addition, the used Material but also a sufficient thermal insulation effect exhibit. This is necessary so that on the one hand in In the event of fire, an inadmissible heating of the outer surface of the Shaft is avoided, which leads to inflammation of could lead to neighboring flammable components; on the other hand but should also be too strong in normal operation Heat transfer can be prevented.

Als weitere Anforderung kommt hinzu, daß die vorgefertigten Schachtelemente nicht zu schwer sein dürfen, um den Transportaufwand zu verringern und insbesondere die Handhabung auf der Baustelle zu erleichtern. Die üblichen zementgebundenen Materialien sind verhältnismäßig schwer, so daß eine weitere Verringerung des Gewichts der einzelnen Schachtelemente nur dadurch möglich ist, daß die Länge der Schachtelemente verringert wird. Dadurch vergrößert sich aber für eine vorgegebene Bauhöhe die Anzahl der erforderlichen Schachtelemente. Dies führt zu einem erhöhten Kosten- und Arbeitsaufwand.Another requirement is that the prefabricated Manhole elements must not be too heavy for the To reduce transport costs and especially the Facilitate handling on site. The usual cementitious materials are relatively heavy, so that further reduce the weight of each Manhole elements is only possible in that the length of the Manhole elements is reduced. But this increases for a given height, the number of required Manhole elements. This leads to an increased cost and Workload.

Aufgabe der Erfindung ist es daher, einen Schacht der eingangs genannten Gattung so auszubilden, daß er nicht nur alle Anforderungen hinsichtlich des Feuerwiderstands und der Isolationswirkung erfüllt, sondern daß die einzelnen Schachtelemente auch bei verhältnismäßig großer Länge noch ein so geringes Gewicht aufweisen, daß sie leicht transportiert und insbesondere bei der Montage leicht gehandhabt werden können.The object of the invention is therefore a shaft train the genre mentioned so that he not only all requirements regarding fire resistance and Isolation effect fulfilled, but that the individual Manhole elements even with a relatively large length are so light that they can be easily transported and especially easy to handle during assembly can be.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Schachtelemente aus geschäumtem Keramikmaterial auf der Basis von Aluminiumoxid und Siliciumoxid mit Wasserglas als Bindemittel bestehen.This object is achieved in that the Manhole elements made of foamed ceramic material on the base of alumina and silica with water glass as Binders exist.

Im Vergleich zu zementgebundenen Materialien ist das Raumgewicht dieses geschäumten Keramikmaterials sehr gering, so daß auch verhältnismäßig große Schachtelemente noch sehr leicht sind und deshalb insbesondere auch bei der Montage. leicht zu handhaben sind. Außerdem ist die Wärmeisolationswirkung des aus geschäumtem Keramikmaterial bestehenden Schachtes sehr hoch, so daß beim Einsatz für Schornsteine der Aufwand für eine Wärmeisolierung des innenliegenden Rauchrohres wesentlich verringert und die Wanddicke des Schachtes kleiner gewählt werden kann. Darüber hinaus hat das verwendete geschäumte Keramikmaterial eine verhältnismäßig hohe Druckfestigkeit, so daß auch hohe Schächte auf diesem Material errichtet werden können, wobei sich andererseits wieder besonders vorteilhaft auswirkt, daß das geringe Raumgewicht des geschäumten Keramikmaterials zu einem geringen Gesamtgewicht des Schachtes führt.That is in comparison to cement-bound materials Density of this foamed ceramic material is very low, so that even relatively large shaft elements are still very much are light and therefore especially during assembly. are easy to use. In addition, the thermal insulation effect made of foamed ceramic material Shaft very high, so that when used for chimneys Effort for thermal insulation of the interior Smoke pipe significantly reduced and the wall thickness of the Shaft can be chosen smaller. In addition, that foamed ceramic used a proportionately high pressure resistance, so that even high shafts on this Material can be erected, on the other hand again has a particularly advantageous effect that the low Density of the foamed ceramic material to one low total weight of the shaft leads.

Trotz dieser Eigenschaften, die üblicherweise nur bei organischem Isoliermaterial vorliegen, hat der Schacht eine hohe Feuerwiderstandsdauer, so daß er die Anforderungen der Feuerwiderstandsklasse F 90 mit Sicherheit erfüllt.Despite these properties, which are usually only found in organic insulation material, the shaft has one high fire resistance, so that it meets the requirements of Fire resistance class F 90 met with certainty.

Vorzugsweise enthält das geschäumte Keramikmaterial anorganische Füllstoffe, mit denen sich seine Eigenschaften, insbesondere hinsichtlich der Feuerwiderstandsdauer und der Druckfestigkeit, noch weiter günstig beeinflussen lassen.The foamed ceramic material preferably contains inorganic fillers, with which its properties, especially regarding the fire resistance duration and the Compressive strength, can be influenced even more favorably.

Eine besondere Erhöhung der Brandschutzwirkung läßt sich dadurch erzielen, daß das geschäumte Keramikmaterial bis zu 39 Gewichtsprozent chemisch gebundenes Kristallwasser enthält.A special increase in the fire protection effect can be thereby achieve that the foamed ceramic material up to 39 percent by weight chemically bound water of crystallization contains.

Gemäß einer bevorzugten Ausführung der Erfindung ist vorgesehen, daß die Schachtelemente in ihren aufeinander stoßenden Stirnflächen jeweils eine konzentrische Ringnut aufweisen und daß in den Ringnuten benachbarter Stirnflächen ein gemeinsamer ringförmiger Verbindungsnippel aufgenommen ist.According to a preferred embodiment of the invention provided that the shaft elements in their on each other butting end faces each have a concentric annular groove have and that in the annular grooves of adjacent end faces a common annular connecting nipple was added is.

Der vorzugsweise aus Metall bestehende Verbindungsnippel stellt einerseits eine mechanisch stabile Verbindung benachbarter Schachtelemente dar, die dadurch auch gegeneinander zentriert werden; andererseits überbrückt der metallische ringförmige Verbindungsnippel die Stoßfuge benachbarter Schachtelemente und verhindert dabei einen möglichen Flammendurchtritt auch dann, wenn die Stoßfuge infolge mechanischer oder thermischer Einflüsse oder unzureichender Verbindung aufklafft.The connecting nipple, preferably made of metal creates a mechanically stable connection of adjacent shaft elements, which are also against each other be centered; on the other hand bridges the metallic annular connection nipple the butt joint adjacent shaft elements and thereby prevents one possible flame penetration even if the butt joint due to mechanical or thermal influences or insufficient connection gapes.

Weitere vorteilhafte Ausgestaltungen des Erfindungsgedankens sind Gegenstand weiterer Unteransprüche.Further advantageous refinements of the inventive concept are the subject of further subclaims.

Nachfolgend wird ein Ausführungsbeispiel der Erfindung näher erläutert, das in der Zeichnung dargestellt ist. Es zeigt:

  • Fig. 1 einen Abschnitt eines Schornsteinschachtes in einem Längsschnitt,
  • Fig. 2 eine Draufsicht in Richtung des Pfeiles II in Fig. 1,
  • Fig. 3 einen vergrößerten Teilschnitt im Bereich einer Verbindungsstelle zweier Schachtelemente,
  • Fig. 4 einen Abschnitt eines Schachtes für eine Abgasleitung,
  • Fig. 5 einen Horizontalschnitt durch einen anderen Schacht für eine Abgasleitung und
  • Fig. 6 einen Schnitt längs der Linie VI-VI in Fig. 5 im Bereich einer Verbindungsstelle zweier Schachtelemente.
    • An exemplary embodiment of the invention is illustrated below, which is shown in the drawing. It shows:
  • 1 shows a section of a chimney shaft in a longitudinal section,
  • 2 is a plan view in the direction of arrow II in FIG. 1,
  • 3 shows an enlarged partial section in the region of a connection point between two shaft elements,
  • 4 shows a section of a shaft for an exhaust pipe,
  • Fig. 5 shows a horizontal section through another shaft for an exhaust pipe and
  • Fig. 6 shows a section along the line VI-VI in Fig. 5 in the region of a junction of two shaft elements.

    • Der in Fig. 1 gezeigte Schornsteinschacht 1 nimmt ein Rauchrohr 2 einer Feuerungsanlage auf, das beispielsweise aus Edelstahl besteht und von einer Isolierschicht 3 umgeben ist. Das mit der Isolierschicht 3 versehene Rauchrohr 2 ist mit allseitig gleichem Abstand konzentrisch zur Schachtinnenwand 4 des Schornsteinschachtes 1 angeordnet, so daß dazwischen ein Ringspalt 5 gebildet wird.The chimney shaft 1 shown in Fig. 1 takes up Smoke pipe 2 of a furnace on, for example, from Stainless steel and is surrounded by an insulating layer 3. The smoke tube 2 provided with the insulating layer 3 is included the same distance on all sides concentric to the inner wall of the shaft 4 of the chimney shaft 1 arranged so that in between an annular gap 5 is formed.

    Der Schornsteinschacht 1 besteht aus mehreren, jeweils stirnseitig miteinander verbundenen und miteinander fluchtenden, vorgefertigten Schachtelementen 6. In Fig. 1 sind zwei solche Schachtelemente dargestellt.The chimney 1 consists of several, each frontally connected to each other and to each other aligned, prefabricated shaft elements 6. In Fig. 1 two such shaft elements are shown.

    Jedes Schachtelement 6 besteht aus geschäumtem Keramikmaterial auf der Basis von Aluminiumoxid und Siliciumoxid. Als Bindemittel wird Wasserglas verwendet. Zusätzlich können organische Füllstoffe verwendet werden. Das für den dargestellten Schornsteinschacht 1 verwendete geschäumte Keramikmaterial weist geschlossene Poren auf, die durch Zugabe von gasbildenden Chemikalien beim Gießprozeß entstanden sind. Der Porenanteil ist so gewählt, daß das geschäumte Keramikmaterial ein Raumgewicht von 0,5-1,7 g/cm3 aufweist.Each shaft element 6 consists of foamed ceramic material based on aluminum oxide and silicon oxide. Water glass is used as a binder. Organic fillers can also be used. The foamed ceramic material used for the chimney shaft 1 shown has closed pores which were formed by adding gas-forming chemicals during the casting process. The proportion of pores is selected so that the foamed ceramic material has a density of 0.5-1.7 g / cm 3 .

    Zur Verbindung der Schachtelemente 6 ist beim dargestellten Ausführungsbeispiel in den aufeinanderstoßenden Stirnflächen 7 der Schachtelemente 6 jeweils konzentrisch zur Schachtinnenwand 4 jeweils eine Ringnut 8 ausgespart, deren Tiefe beispielsweise das zweifache der kleinsten Wanddicke der Schachtelemente 6 beträgt und deren Nutbreite beispielsweise etwa ein Viertel dieser kleinsten Wanddicke beträgt.To connect the shaft elements 6 is shown in the Embodiment in the abutting end faces 7 of the shaft elements 6 each concentric to the inner wall of the shaft 4 each have an annular groove 8, the depth of which for example twice the smallest wall thickness Manhole elements 6 and their groove width, for example is about a quarter of this smallest wall thickness.

    In den beiden aufeinander treffenden Ringnuten 8 benachbarter Stirnflächen 7 ist jeweils ein gemeinsamer ringförmiger Verbindungsnippel 9 aufgenommen, der aus Metall besteht und im wesentlichen einen Zylinder bildet. In the two adjacent ring grooves 8 adjacent End faces 7 is a common annular one Connection nipple 9 added, which consists of metal and essentially forms a cylinder.

    In seinen beiden entgegengesetzten Endabschnitten weist der Verbindungsnippel 9 jeweils einen äußeren Federring 10 oder Gummiring auf, der in eine dort ausgebildete flache Umfangsnut des Verbindungsnippels 9 eingelegt ist und an der Innenwand 8a der Ringnut 8 zur Anlage kommt.In its two opposite end sections, the Connection nipple 9 each have an outer spring washer 10 or Rubber ring on the flat formed there Circumferential groove of the connecting nipple 9 is inserted and on the Inner wall 8a of the annular groove 8 comes to rest.

    Der Verbindungsnippel 9 weist eine radial vorspringende Umfangsrippe oder einzelne radial vorspringende Noppen 11 auf, die in einer ringförmigen Ausnehmung 12 mindestens einer der beiden Stirnflächen 7 angeordnet ist. Bei dem dargestellten Ausführungsbeispiel weisen beide aufeinander treffende und miteinander beispielsweise durch feuerfeste Klebung verbundenen Stirnflächen 7 jeweils eine solche ringförmige Ausnehmung 12 auf, so daß im Bereich der Stoßfuge 13 zwischen den beiden Schachtelementen 6 ein von den Ringnuten 8 am Umfang nach außen vorspringender Ringraum entsteht, der die Umfangsrippen oder vorspringenden Noppen 11 aufnimmt und dadurch den Verbindungsnippel 9 formschlüssig in seiner Lage hält, in der er die Stoßfuge 13 überbrückt.The connecting nipple 9 has a radially projecting one Circumferential rib or individual radially projecting knobs 11 on in an annular recess 12 at least one of the two end faces 7 is arranged. In the illustrated Embodiment have both meet and with each other, for example, by refractory gluing connected end faces 7 each such an annular Recess 12 so that in the area of the butt joint 13 between the two shaft elements 6 one of the ring grooves 8 on Circumferentially projecting annulus arises that the Receiving circumferential ribs or protruding knobs 11 and thereby the connection nipple 9 positively in its position holds in which he bridges the butt joint 13.

    Fig. 4 zeigt in einem senkrechten Schnitt einen Schacht 1', der zur Aufnahme eines in der Zeichnung nur angedeuteten Abgasrohres 14 einer Brennwertanlage bestimmt ist. Der Schacht 1' besteht ebenso wie beim vorher beschriebenen Ausführungsbeispiel aus mehreren, stirnseitig durch Klebung miteinander verbundenen und miteinander fluchtenden, vorgefertigten Schachtelementen 6'. Jedes Schachtelement 6' besteht aus geschäumtem Keramikmaterial auf der Basis von Aluminiumoxid und Siliziumoxid mit Wasserglas als Bindemittel, wie dies schon beim vorher beschriebenen Ausführungsbeispiel erläutert wurde. 4 shows a shaft 1 'in a vertical section, the one for the inclusion of one only indicated in the drawing Exhaust pipe 14 of a condensing system is determined. The Manhole 1 'is the same as that described above Embodiment of several, front by gluing interconnected and aligned, prefabricated shaft elements 6 '. Each shaft element 6 ' consists of foamed ceramic material based on Aluminum oxide and silicon oxide with water glass as a binder, as already in the previously described embodiment was explained.

    Jeweils an der Verbindungsstelle zweier Schachtelemente 6' ist ein die Stoßfuge 13' überbrückender Verbindungsnippel 9' an der Schachtinnenwand 4' angeordnet. Der beispielsweise aus Blech bestehende Verbindungsnippel weist eine radial vorspringende Umfangsrippe oder einzelne radial vorspringende Noppen 11' auf, die in einer ringförmigen Ausnehmung 12' an der Schachtinnenwand 4' im Bereich jeder Stoßfuge 13' angeordnet ist. Der Verbindungsnippel 9' trägt an seiner Außenseite Gummiringdichtungen 15, die jeweils an der Schachtinnenwand 4' anliegen.Each at the junction of two shaft elements 6 ' is a connecting nipple 9 'bridging the butt joint 13' arranged on the inner wall 4 'of the shaft. The example of Sheet metal existing connection nipple has a radial projecting circumferential rib or individual radially projecting Studs 11 'on in an annular recess 12' the shaft inner wall 4 'in the area of each butt joint 13' is arranged. The connecting nipple 9 'carries on it Outside rubber ring seals 15, each on the Shaft inner wall 4 'rest.

    Während der Schacht 1' gemäß Fig. 4 zylindrisch ausgeführt ist, ist der in den Fig. 5 und 6 gezeigte Schacht 1" im Grundriß rechteckig, wie aus Fig. 5 zu erkennen ist. Wegen der guten Isolationswirkung des verwendeten geschäumten Keramikmaterials kann die Wanddicke des Schachtes 1" insbesondere an den beiden Längswänden so gering ausgeführt werden, daß der Schacht 1" in eine Gebäudewand integriert werden kann, ohne auf einer Wandseite vorzustehen. Die gute Isolationswirkung des geschäumten Keramikmaterials ermöglicht es auch, den Abstand zwischen der innenliegenden Abgasleitung 14 und der Schachtinnenwand 4" sehr gering zu wählen. Die erforderlichen Zuluftkanäle werden beiderseits der innenliegenden Abgasleitung 14 ausgebildet.4 is cylindrical is the shaft 1 "shown in FIGS. 5 and 6 in Floor plan rectangular, as can be seen from Fig. 5. Because of the good insulation effect of the foamed used Ceramic material, the wall thickness of the shaft 1 " run so low, especially on the two longitudinal walls be that the shaft 1 "integrated into a building wall can be without projecting on a wall side. The good Enables insulation effect of the foamed ceramic material it also, the distance between the internal exhaust pipe 14 and the shaft inner wall 4 "to be selected very small. The required air supply ducts are on both sides of the internal Exhaust pipe 14 formed.

    In Anpassung an den Schachtquerschnitt ist hierbei der verwendete Verbindungsnippel 9" (Fig. 6) rechteckig.Adapting to the shaft cross-section is the used connection nipple 9 "(Fig. 6) rectangular.

    Claims (7)

    Schacht (1) für Schornsteine oder Abgasleitungen zur Aufnahme eines innenliegenden, mit Abstand zur Schachtinnenwand (4) angeordneten Rauchrohres (2) oder einer Abgasleitung für Feuerungsanlagen, bestehend aus miteinander fluchtenden und jeweils stirnseitig miteinander verbundenen, vorgefertigten Schachtelementen (6,6') aus mineralischem Werkstoff, dadurch gekennzeichnet, daß die Schachtelemente (6, 6') aus geschäumtem Keramikmaterial auf der Basis von Aluminiumoxid und Siliciumoxid mit Wasserglas als Bindemittel bestehen.Shaft (1) for chimneys or exhaust pipes for Image of an internal one, at a distance from the inner wall of the shaft (4) arranged smoke pipe (2) or an exhaust pipe for combustion plants, consisting of aligned and in each case connected to each other at the front, prefabricated Shaft elements (6,6 ') made of mineral material, characterized in that the shaft elements (6, 6 ') foamed ceramic material based on aluminum oxide and silicon oxide with water glass as a binder. Schacht nach Anspruch 1, dadurch gekennzeichnet, daß das geschäumte Keramikmaterial anorganische Füllstoffe enthält.Shaft according to claim 1, characterized in that the foamed ceramic material contains inorganic fillers. Schacht nach Anspruch 1, dadurch gekennzeichnet, daß das geschäumte Keramikmaterial bis zu 35 Gewichtsprozent chemisch gebundenes Kristallwasser enthält.Shaft according to claim 1, characterized in that the foamed ceramic material up to 35 weight percent chemical contains bound crystal water. Schacht nach Anspruch 1, dadurch gekennzeichnet, daß die Schachtelemente (6) in ihren aufeinanderstoßenden Stirnflächen (7) jeweils eine Ringnut (8) aufweisen und daß in den Ringnuten (8) benachbarter Stirnflächen (7) ein gemeinsamer ringförmiger Verbindungsnippel (9) aufgenommen ist. Shaft according to claim 1, characterized in that the Manhole elements (6) in their abutting end faces (7) each have an annular groove (8) and that in the Ring grooves (8) of adjacent end faces (7) have a common one annular connecting nipple (9) is added. Schacht nach Anspruch 4, dadurch gekennzeichnet, daß der Verbindungsnippel (9) an seinen beiden Endabschnitten einen äußeren Federring (10) aufweist.Shaft according to claim 4, characterized in that the Connection nipple (9) at its two end sections outer spring ring (10). Schacht nach Anspruch 4, dadurch gekennzeichnet, daß der Verbindungsnippel (9) eine radial vorspringende Umfangsrippe oder einzelne radial vorspringende Noppen (11) aufweist, die in einer ringförmigen Ausnehmung (12) mindestens einer der beiden Stirnflächen (7) aufgenommen ist.Shaft according to claim 4, characterized in that the Connecting nipple (9) a radially projecting circumferential rib or has individual radially projecting knobs (11) which in an annular recess (12) at least one of the two end faces (7) is added. Schacht nach Anspruch 1, dadurch gekennzeichnet, daß an der Verbindungsstelle zweier Schachtelemente (6') ein die Stoßfuge (13') überbrückender Verbindungsnippel (9', 9") an der Schachtinnenwand (4', 4") angeordnet ist.Shaft according to claim 1, characterized in that the junction of two shaft elements (6 ') Butt joint (13 ') bridging connecting nipple (9', 9 ") the shaft inner wall (4 ', 4 ") is arranged.
    EP01100225A 2000-01-11 2001-01-03 Duct for chimneys or for exhaust lines Withdrawn EP1116835A3 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE10000803 2000-01-11
    DE2000100803 DE10000803A1 (en) 2000-01-11 2000-01-11 Shaft for chimneys or flue pipes

    Publications (2)

    Publication Number Publication Date
    EP1116835A2 true EP1116835A2 (en) 2001-07-18
    EP1116835A3 EP1116835A3 (en) 2002-01-02

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    ID=7627162

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP01100225A Withdrawn EP1116835A3 (en) 2000-01-11 2001-01-03 Duct for chimneys or for exhaust lines

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    EP (1) EP1116835A3 (en)
    DE (1) DE10000803A1 (en)

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN100365240C (en) * 2006-04-03 2008-01-30 陈海渊 Boiler chimney body and method for forming its inner wall protection structure
    CN101793105A (en) * 2010-03-26 2010-08-04 西安天元合成材料有限公司 Anti-corrosion method of inner wall of stack

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102004026985B4 (en) * 2004-06-03 2008-07-17 Emsländer Baustoffwerke GmbH & Co. KG Chimney construction with in particular a stainless steel pipe

    Citations (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE3430851A1 (en) * 1983-09-15 1985-04-04 geb. Haase Marlene 2730 Zeven Schreyer Chimney having an inner pipeline conduit comprising individual inner pipeline pieces
    DE3536156A1 (en) * 1985-10-10 1987-04-23 Gruenzweig Hartmann Glasfaser Prefabricated pipe element, in particular for chimneys
    DE4106835A1 (en) * 1991-03-04 1992-09-24 Karl Heinz Vahlbrauk Prefab. chimney stack with inner steel flue pipe - has sections joined by joints formed with polymer
    DE4118006A1 (en) * 1991-06-01 1992-12-03 Karl Heinz Vahlbrauk Chimney building component - is a one-piece component of an inorganic foam material giving simply assembly
    DE4320031A1 (en) * 1993-06-17 1994-12-22 Isomit Schornsteinelemente Waste-gas disposal shaft with mineral pipes and connecting element
    DE4410437A1 (en) * 1993-09-10 1995-03-16 Karl Heinz Vahlbrauk Prefabricated chimney

    Patent Citations (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE3430851A1 (en) * 1983-09-15 1985-04-04 geb. Haase Marlene 2730 Zeven Schreyer Chimney having an inner pipeline conduit comprising individual inner pipeline pieces
    DE3536156A1 (en) * 1985-10-10 1987-04-23 Gruenzweig Hartmann Glasfaser Prefabricated pipe element, in particular for chimneys
    DE4106835A1 (en) * 1991-03-04 1992-09-24 Karl Heinz Vahlbrauk Prefab. chimney stack with inner steel flue pipe - has sections joined by joints formed with polymer
    DE4118006A1 (en) * 1991-06-01 1992-12-03 Karl Heinz Vahlbrauk Chimney building component - is a one-piece component of an inorganic foam material giving simply assembly
    DE4320031A1 (en) * 1993-06-17 1994-12-22 Isomit Schornsteinelemente Waste-gas disposal shaft with mineral pipes and connecting element
    DE4410437A1 (en) * 1993-09-10 1995-03-16 Karl Heinz Vahlbrauk Prefabricated chimney

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN100365240C (en) * 2006-04-03 2008-01-30 陈海渊 Boiler chimney body and method for forming its inner wall protection structure
    CN101793105A (en) * 2010-03-26 2010-08-04 西安天元合成材料有限公司 Anti-corrosion method of inner wall of stack

    Also Published As

    Publication number Publication date
    EP1116835A3 (en) 2002-01-02
    DE10000803A1 (en) 2001-07-26

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