EP0286488B1 - Elément de conduit de fumée étanche, à double paroi et calorifugé - Google Patents

Elément de conduit de fumée étanche, à double paroi et calorifugé Download PDF

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Publication number
EP0286488B1
EP0286488B1 EP88400661A EP88400661A EP0286488B1 EP 0286488 B1 EP0286488 B1 EP 0286488B1 EP 88400661 A EP88400661 A EP 88400661A EP 88400661 A EP88400661 A EP 88400661A EP 0286488 B1 EP0286488 B1 EP 0286488B1
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EP
European Patent Office
Prior art keywords
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die
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Expired - Lifetime
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EP88400661A
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German (de)
English (en)
French (fr)
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EP0286488A1 (fr
Inventor
Daniel Urion
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Individual
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Individual
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Priority to AT88400661T priority Critical patent/ATE59081T1/de
Publication of EP0286488A1 publication Critical patent/EP0286488A1/fr
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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
    • 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

Definitions

  • the present invention relates to leak-proof smoke ducts, in particular for chimneys, of the type comprising several butted and / or fitted elements, each of which is double-walled with internal insulating lining, and the invention relates more specifically to a duct member. waterproof smoke, double-walled and heat-insulated, for the production of such smoke ducts.
  • duct elements of this type intended to be butted and / or fitted with at least one other duct element, preferably identical, and which each comprise: an outer wall and an inner wall each closed by a section metallic tubular, respectively external and internal, and substantially coaxial around the axis of the conduit, the edges at the axial ends of the internal wall projecting outwards, -an internal heat-resistant lining, housed between the two walls of the duct element, an annular gutter-shaped part with a straight internal edge and an external edge projecting towards the outside of the duct, this annular gutter part being engaged between the parts of a first axial end, the lower end preferably when the duct element is not horizontal, from the walls of the element, so that its right internal edge is in abutment against the internal wall and / or the edge projecting outwards from the first axial end of the internal wall, and the edge of the first axial end of the external wall bears against the external edge, projecting outwards, of the annular piece in gutter, -at least
  • each centering member is at least partly housed in a second annular part, in the form of a gutter, which each duct element comprises, this second annular part being mounted on the part of the second axial end of the two walls of the element in a substantially symmetrical manner, relative to the joint plane of the two abutting elements, to the annular piece in the form of a gutter in which the element or the centering members of an element comes or comes to engage with the assembly with another element.
  • each centering member is retained on this second annular piece in the form of a gutter of the corresponding duct element, and, in particular, each centering member is fixed by its outer edge, in projecting outwardly between the outer edges of the two gutter-shaped annular parts, on the outer edge of the annular part on which it is retained.
  • each centering member has a portion substantially shaped like the bottom of the annular part in which the centering member projects, when assembled with another conduit element, and this second part of each centering member itself extends towards the bottom of the annular piece on which the centering member is retained, by an internal flank whose end, which constitutes the internal edge of the centering member, is intended to bear against the bottom of this last annular part.
  • each duct element comprises a single centering member, in the form of an annular crown having a substantially U-shaped section, the external face of the external wing of which is inclined towards the external, constitutes the annular conical bearing, the end of this external wing being crimped around the external edge of the annular piece in the form of a gutter towards which the U-shaped section of the centering member opens.
  • internal wing of the latter is intended to come into abutment by its end against the bottom of this last annular part.
  • each duct element that at the level of the assembly between two duct elements, the volume delimited between the two annular pieces in gutter facing one another, and in which is housed l centering member retained on one of the two gutters, cannot be filled with thermal insulation material (rock wool or other fibrous insulation) which constitutes the heat-insulating lining placed between the two walls and between the two gutters at the two ends of the walls of each element. II results in a part which is not thermally insulated at each junction of two duct elements.
  • thermal insulation material rock wool or other fibrous insulation
  • each connection zone of two butted duct elements has practically three transverse metal elements forming a thermal bridge between the inner and outer walls of the duct.
  • the object of the invention is to provide a double-walled and insulated pipe element, which makes it possible to produce, by assembly with other identical elements, smoke completely sealed, without possibility of penetration of condensate inside the joints between butted elements, the flue being moreover completely insulated by thermal insulation and with considerably reduced thermal bridges, at the level of said joints, compared to those obtained by the use of conduit elements of the aforementioned prior art.
  • conduit element according to the invention must simultaneously make it possible to retain the advantages specific to the conduit element described in French patent application n ° 82 20623, namely a conduit of simple production and of reduced cost price.
  • the conduit elements being arranged end to end by a particularly easy assembly with self-centering, which can be undertaken by an individual, non-professional manufacturer, so that the connection can be made quickly following the immediate installation of a clamp or junction collar .
  • each centering member is directly supported by the part of the second axial end of the conduit element with which it overlaps the corresponding edge of the external wall, being engaged towards the inside of the two walls of the element, substantially along the external face of the corresponding edge of the internal wall.
  • each conical bearing surface of each centering member faces outward and cooperates with at least one corresponding conical bearing face facing inwardly of the annular part in which the centering member projects, at the with another conduit element.
  • each conical bearing surface of each centering member is advantageously arranged on an external flank of this member and this side is in abutment and centered against the external face of the part of the second axial end, of frustoconical shape, of the external wall of the element.
  • each centering member in which the centering member or members have good mechanical strength while being of a simple structure, is connected by a transverse web to an internal guided flank and coming to bear outside the internal wall of the element, the transverse web being intended to come into contact with a bottom of the annular part in which the centering member engages in assembly with a another conduit element.
  • each centering member preferably extends substantially radially, relative to the internal walls and external of the element, by being in contact with a substantially radial internal rim, integral with the frustoconical part of the second axial end of the external wall.
  • the part of the second axial end of the internal wall is rounded projecting outwards and then bent round to end in a straight edge that is substantially frustoconical, diverging outward, so as to delimit a peripheral recess intended to receive the edge projecting towards the outside of the first axial end of the internal wall of another duct element, when assembled with the latter, so that the condensates flowing along the internal wall of this other duct element cannot rise up against the bent part at the corresponding end of the internal wall of the first duct element considered, and therefore cannot penetrate into the joint between the two elements thus partially abutted and one inside the other.
  • each centering member With the corresponding axial end of the internal wall of each duct element, it is more advantageous for the internal flank of each centering member to be substantially of frustoconical shape converging towards the inside. of the duct element, and terminates in a bent end portion, projecting inwards and by which the internal flank comes into contact on the outside of the rounded outward projection formed on the part of the second axial end of the internal wall.
  • the centering member is a member in the form of an annular crown, having a substantially U-shaped cross section, the external wing of which constitutes an external flank having, on its external face, the conical centering surface, inclined towards the outside, and which surrounds the frustoconical part of the second axial end of the outer wall, the base of the centering member in an annular ring of U-shaped section constituting a transverse web, in the form of a support disc against the bottom of an annular piece in gutter in which the centering member s commits to assembly with another duct element, while the internal wing of this U-shaped centering member constitutes a frustoconical internal flank with a bent end surrounding the part of the second axial end of the internal wall of the element.
  • a smoke duct constituted by the assembly of duct elements according to the invention, it is understood that the thermal insulation can be complete, since the heat-insulating lining of each element can occupy the entire internal volume delimited between the internal walls and external and between the annular part of the first axial end and the centering member (s) of the second axial end of the element.
  • the duct element according to the invention is, in a known manner, such that the edge of the first axial end of its internal wall is rolled outwards around the right internal edge of the corresponding annular part , and that the edge of the first axial end of its external wall is straight and engaged in the external edge rolled towards the outside of the corresponding annular part, according to a characteristic specific to the invention, the external edge of each centering member is rolled by crimping towards the outside, projecting outside the part of the second axial end of the external wall, and is intended to be kept applied by a clamp against the external edge rolled towards the outside of the annular part in which the centering member engages by its conical bearing, when assembled with another duct element.
  • the conduit element advantageously comprises a locking device, intended to secure each centering member to the annular piece in the gutter in which it projects, when assembled with another conduit element.
  • such a locking device comprises punctures coming to lock, by a rotation with respect to each other, of two elements of conduit to be assembled, about their common axis, against lugs, the punctures being formed either in one of the conical bearing surfaces of the centering member or of the corresponding annular part, and the lugs presented by the other conical bearing, or in one of the two walls which are the transverse web of the centering member (s) and the bottom of the annular part in which the centering member (s) engage in assembly with the other conduit element, the pins being presented by the other of these two walls .
  • the smoke pipes produced by the assembly of elements as shown in the single figure are rigid pipes particularly well suited to be connected to the upper plate of a chimney stack, of the type described in the aforementioned French patent application. , and be used for the evacuation of fumes from both open and closed sheets, consuming solid, liquid or gaseous fuels.
  • each duct element 1 a or 1 is constituted, in a manner known per se, by an outer wall 2 a or 2 b, for example made of galvanized sheet metal or stainless steel, with a thickness close to 0.5 mm , and by an inner wall 3a or 3b, for example of stainless steel sheet, with a thickness close to 0.5 mm also.
  • an outer wall 2 a or 2 b for example made of galvanized sheet metal or stainless steel
  • an inner wall 3a or 3b for example of stainless steel sheet, with a thickness close to 0.5 mm also.
  • a heat-insulating or thermally insulating lining 4a or 4b for example in rock wool or in any other material fibrous insulation.
  • each duct element is metallic tubular sections, substantially the same height, coaxial around the axis A of the duct, and such that the edge of the lower end 5a or 5b of the external wall 2a or 2b is a straight edge, while the lower end of the internal wall 3a or 3b is shaped into rolled edges 6a or 6b by crimping outwards, that is to say to the left in the single figure.
  • the lower end of each of the duct elements 1a and 1b, an annular piece in the form of a gutter or flange 7a or 7b is disposed substantially between the lower edges of the inner walls 3a or 3b and outer 2a or 2b corresponding.
  • Each flange 7a or 7b is an annular piece of substantially U-shaped cross section whose concavity is turned towards the outside of the duct element 1 a or 1 to which it belongs, that is to say downwards. in the single figure.
  • the base of each U-shaped collar 7a or 7b forms a flat and substantially radial bottom 8a or 8b, between the internal and external walls of the corresponding duct element, and thus limits downwards the volume occupied by the insulating lining 4a or 4b in the corresponding conduit element.
  • the bottom 8a or 8b of the flange 7a or 7b is attached, towards the inside, to an internal wing 9a or 9b of the U-shaped flange, and this internal wing is shaped as a straight edge which is engaged in the rolled edge 6a or 6b of the lower end of the corresponding internal wall 3a or 3b while being pressed against the latter, while, towards the outside, the bottom 8a, 8b is attached to an external wing 10a or 10b, shaped in frustoconical bearing 11a or 11b, in its straight part directly adjacent to the bottom 8a or 8b, and on the rolled edge by crimping outwards and upwards 12a or 12b, in its free end part.
  • the bearing surface 11a or 11b is inclined towards the inside of the corresponding flange 7a or 7b and towards the axis A of the conduit, and its frustoconical profile is converging axially to inside the element 1 a or 1 b of conduit.
  • the bottom 8a or 8b of the corresponding flange is transverse sal, flat and substantially radial, that is to say substantially perpendicular to the common axis A of the two elements 1 a and 1 b.
  • the upper end part of the external wall 2a or 2b is not a straight edge but, in this example, is partly shaped frustoconical, such as 13a, with small base turned upwards, that is to say that the frustoconical part 13a converges axially towards the outside of the element 1 a with corresponding double walls.
  • this frustoconical wall 13a can preferably be extended by a small internal radial rim 14a.
  • the upper end of the internal wall 3a is not arranged with the edge rolled outwards and downwards, but partly end bent outwards.
  • This end portion comprises a first rounded 15a with concavity turned towards the outside, followed by a second rounded 16a, with concavity turned towards the inside and which ends in a straight frustoconical edge 17a diverging axially towards the outside of element 1 a.
  • the two rounded curves 15a and 16a with inverted concavity and the frustoconical edge 17a thus delimit, at the internal periphery of the upper end of the internal wall 3a, a recess open upwards and in which is housed the lower edge rolled outwards 6b from the internal wall 3b of the conduit element 1b, when the latter is butted and / or at least partially fitted onto the element 1a, as shown in the figure.
  • each duct element such as 1a comprises a centering member 18a, also in the form of an annular crown and of section substantially in the shape of an inverted U, and which comprises a flat base 19a , an outer wing 20a, and an inner wing 21a.
  • the outer wing 20a has a frustoconical flank 22a inclined so as to constitute, on its face turned towards the outside, a conical bearing of shape corresponding to that of the inclined part 11a, 11b of the outer wing 10aou 1 Ob de the flange 7a or 7b, and this frustoconical flank 22a is extended towards the outside by an edge 23a rolled outwards and downwards, by crimping, with a thumbwheel or with the press, for example.
  • the internal wing 21a is also inclined, but inwards, and, unlike the conduit element described in French patent application 82 20623, its lower end is not straight but bent inwards.
  • the annular centering member 18a is thus mounted at the upper end of the duct element 1a, which it bears by its base 19a and its frustoconical external flank 22a respectively against the radial rim 14a and the frustoconical part 13a of the upper end of the external wall 2a, the rolled edge 23a of its external wing 20a projecting outwards relative to the external wall 2a, and moreover, its internal wing 21a bent is engaged between the two , walls 2a and 3a of the element 1a and guided outside and along the internal wall 3a, against which it comes into contact along the junction bend of the folds 24a and 25a, at the level of the rounding towards the exterior 15a of the upper end of the internal wall 3a.
  • the annular centering member 18a thus constitutes a male endpiece supported by the upper end of the duct element 1a and projecting upwards and outwards from the latter, and therefore towards the inside of the flange 7b mounted at the lower end of the other duct element 1b, abutting on the first 1a, the flange 7b constituting a female guide member during the end-to-end positioning and partial fitting of the two elements 1 a and 1 b.
  • the penetration of the centering member 18a into the flange 7b, during a substantially axial bringing together of the two elements 1a and 1b, causes the cooperation of the conical bearings 11b and 22a, and therefore the self-centering of the two elements 1 a and 1 b.
  • This clamp 26 can be of any known type, for example screw or handle.
  • a flue made up of elements such as 1 a and 1 b, coupled with each other in the manner just described, has a high level of tightness, in particular thanks to the conical bearing surfaces and the tightening ensured by the collar 26. Its tightness, at the joints between elements, is also high with respect to the condensates flowing along the internal wall, due, as already said, to the particular bent conformation of the upper end of the internal partitions of the elements.
  • such a duct is practically completely thermally insulated, because, in each element, the insulating lining such as 4a fully occupies the space available between the two walls 2a and 3a, and between the flange 7a of the lower end and the centering member 18a of the upper end.
  • the thermal bridge between the internal and external walls is considerable ment decreased by the fact that at the joints between elements, there are only substantially two transverse metallic sails, namely the bottom 8b of the female flange 7b of this seal, and the bottom 19a of the male centering tip 18a of the same attached.
  • the end-to-end mounting of the various elements of such a sealed conduit is easy, and within the reach of an individual manufacturer having neither professional skill nor special tools.
  • each duct element such as 1a being supplied provided at one of its ends with an annular piece or flange such as 7a and, at the other end, with a centering member such as 18a, the coupling of the two duct elements such as 1a and 1b only requires bringing the corresponding ends of the two elements together so as to make their conical bearings described above cooperate, then mount and tighten the clamp 26.
  • Each conduit element 1 a or 1 b may further comprise elements of a locking device which allows the joining of two butted conduit elements, by rotation of one relative to the other of the two elements around their common axis A, in the case of straight elements, as shown in the single figure, or around the axis which is common to their butted sections, if at least one of the joined elements is a bent element.
  • Such a locking device may consist of sheet metal parts of the annular part or collar 7a or 7b, projecting from the face of the conical seat 11a or 11b or from the bottom 8a or 8b which are respectively turned towards the conical surface 22a or towards the base 19a of the corresponding centering member 18a, these protruding sheet parts being formed by punctures or by stamping in the sheet, and extending either in an inclined direction over the generatrices of the corresponding cone, if they are presented by the conical bearing 11 a, or in a direction inclined to the radial direction if they are presented by the bottom 8a or 8b of the collar 7a or 7b.
  • lugs or bosses extend in a direction inclined also on the generatrices or the radial direction depending on whether they are carried on the conical bearing 22a or on the base 19a, and the inclination corresponds to that sheet metal parts projecting from the corresponding flange, so that the rotation of one of the duct elements relative to the other, after centering, causes the sheet metal parts projecting from the flange, for example 7b, to block against the lugs or bosses of the corresponding centering member 18a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Connection Or Junction Boxes (AREA)
  • Cable Accessories (AREA)
  • Thermal Insulation (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Ventilation (AREA)
  • Duct Arrangements (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
EP88400661A 1987-04-10 1988-03-18 Elément de conduit de fumée étanche, à double paroi et calorifugé Expired - Lifetime EP0286488B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88400661T ATE59081T1 (de) 1987-04-10 1988-03-18 Luftdichtes rauchleitungselement mit doppelten und waermeisolierten waenden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8705083 1987-04-10
FR8705083A FR2613746B1 (fr) 1987-04-10 1987-04-10 Element de conduit de fumee etanche, a double paroi et calorifuge

Publications (2)

Publication Number Publication Date
EP0286488A1 EP0286488A1 (fr) 1988-10-12
EP0286488B1 true EP0286488B1 (fr) 1990-12-12

Family

ID=9349989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88400661A Expired - Lifetime EP0286488B1 (fr) 1987-04-10 1988-03-18 Elément de conduit de fumée étanche, à double paroi et calorifugé

Country Status (6)

Country Link
EP (1) EP0286488B1 (it)
AT (1) ATE59081T1 (it)
DE (1) DE3861255D1 (it)
ES (1) ES2019461B3 (it)
FR (1) FR2613746B1 (it)
IT (1) IT212238Z2 (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2658897A1 (fr) * 1990-02-23 1991-08-30 Leroux Gerard Conduit metallique rigide modulaire multifonction.
EP1431659A1 (de) * 2002-12-21 2004-06-23 eka edelstahlkamine gmbh Stecksystem für Rohrverbindungen mit nichtlinearen kontinuierlichen Abschnitten

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19611580C1 (de) * 1996-03-23 1997-10-30 Karl Schraeder Nachf Inh Karl Rohrabschnitt eines doppelwandigen Kaminrohrs für den Schornsteinbau
FR2866376B1 (fr) 2004-02-13 2006-04-28 Sofamec Element de conduit de fumee a double paroi
CN115095879B (zh) * 2022-07-25 2025-09-26 珠海格力电器股份有限公司 烟管组件和家用电器
FR3146924B1 (fr) 2023-03-21 2025-03-21 Cogelec Entrebâilleur

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170544A (en) * 1962-03-01 1965-02-23 William Wallace Corp Prefabricated metal chimney
GB1156972A (en) * 1966-05-19 1969-07-02 Grateheat Ltd Insulated Chimneys
FR1577032A (it) * 1968-08-20 1969-08-01
AT323386B (de) * 1973-05-24 1975-07-10 Metallschornsteinbau Ges M B H Schornsteinelement
FR2438131A1 (fr) * 1978-10-05 1980-04-30 Coffin Ets Souche de cheminee en tole metallique
US4462618A (en) * 1981-03-16 1984-07-31 Wallace-Murray Corporation Prefabricated double-walled metal chimney
FR2537636B1 (fr) * 1982-12-09 1987-05-29 Urion Daniel Conduit de fumee etanche, notamment pour cheminees
CA1197659A (en) * 1983-08-29 1985-12-10 Mark D. Ewen High temperature chimney

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2658897A1 (fr) * 1990-02-23 1991-08-30 Leroux Gerard Conduit metallique rigide modulaire multifonction.
EP1431659A1 (de) * 2002-12-21 2004-06-23 eka edelstahlkamine gmbh Stecksystem für Rohrverbindungen mit nichtlinearen kontinuierlichen Abschnitten

Also Published As

Publication number Publication date
ATE59081T1 (de) 1990-12-15
FR2613746A1 (fr) 1988-10-14
EP0286488A1 (fr) 1988-10-12
IT8753690V0 (it) 1987-09-30
FR2613746B1 (fr) 1992-10-09
IT212238Z2 (it) 1989-07-04
ES2019461B3 (es) 1991-06-16
DE3861255D1 (de) 1991-01-24

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