EP1245902B1 - Piece intermediaire pour tuyaux de dispositifs à gaz - Google Patents

Piece intermediaire pour tuyaux de dispositifs à gaz Download PDF

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Publication number
EP1245902B1
EP1245902B1 EP20020076129 EP02076129A EP1245902B1 EP 1245902 B1 EP1245902 B1 EP 1245902B1 EP 20020076129 EP20020076129 EP 20020076129 EP 02076129 A EP02076129 A EP 02076129A EP 1245902 B1 EP1245902 B1 EP 1245902B1
Authority
EP
European Patent Office
Prior art keywords
adapter
pipe adapter
inner pipe
spout
outer pipe
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
EP20020076129
Other languages
German (de)
English (en)
Other versions
EP1245902A1 (fr
Inventor
Michel Georges Florian Lavrard-Meyer
Frans Gerrit Ravestein
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.)
Ubbink BV
Original Assignee
Ubbink BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ubbink BV filed Critical Ubbink BV
Publication of EP1245902A1 publication Critical patent/EP1245902A1/fr
Application granted granted Critical
Publication of EP1245902B1 publication Critical patent/EP1245902B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • 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 
    • 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 
    • F23J2211/00—Flue gas duct systems
    • F23J2211/10—Balanced flues (combining air supply and flue gas exhaust)
    • F23J2211/101—Balanced flues (combining air supply and flue gas exhaust) with coaxial duct arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2213/00—Chimneys or flues
    • F23J2213/20—Joints; Connections
    • F23J2213/203—Joints; Connections between stack/duct and combustion apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
    • F23J2900/13004—Water draining devices associated with flues

Definitions

  • the invention relates to an adapter for use in pipes or tubes of gas devices, particularly gas discharge pipes, particularly in combination with combustion air supply pipes, that concentrically engage about the gas discharge pipes in order to form an annular air channel therewith, as described in the preamble of claim 1.
  • Such adapters are used to couple supply pipes and discharge pipes of gas devices to the pipes to and from a discharge structure.
  • the location of the adapter may in principle be anywhere between the gas device and the discharge structure in horizontal or vertical pipe portions.
  • the adapter will often be arranged near the gas device, connecting to the supply and discharge passages provided in said gas device.
  • Such adapters may also be formed for forming a transition between pipes of different diameters.
  • Adapters may furthermore be provided with a condensation interception and condensation drain for condensation that flows along the inner surface of the gas discharge pipe and may not end up in the boiler.
  • Known adapters have an inner pipe adapter including condensation interception and condensation drain, to which a connection pipe is integrally formed that axially protrudes a length from an outer pipe adapter, which has the shape of a casing.
  • the condensation interception is an annular channel to which a radially extending drain pipe has been connected, which extends through a hole in the casing and to which a further pipe or tube can be connected.
  • connection pipes that are provided with a connection end for accommodation of the gas discharge pipe at the boiler side and with a connection end for accommodation by the gas discharge pipe at the boiler side, respectively. Which one is needed depends on the embodiment of the boiler in question, particularly the gas discharge pipe accommodated therein.
  • Said gas discharge pipe usually ends at a location within the housing of the boiler, which can be reached through a hole in the housing wall onto which the casing can be attached.
  • the hole can be bounded by the material of the housing wall itself, or by a combined flange/collar, in which the flange has been attached to the housing wall and the collar forms a means for connection to the casing.
  • Casing and inner pipe adapter are placed as an assembly, in which the fitter should ensure a good connection of the connection pipe to the gas discharge pipe situated in the boiler, which may be difficult due to lack of a good overview.
  • connection pipe is actually uncoupled from the inner pipe adapter and in production and stocking one type of inner pipe adapter will suffice and the connection pipe can be produced separately in two or more versions, in accordance with a male and female end or length.
  • the fitting is then simplified as well, as the fitter is able to easily place the separate connection pipe on the gas discharge pipe situated in the boiler, and is then able to arrange the adapter with the outer pipe adapter to the boiler wall and the inner pipe adapter over the connection pipe in a controlled way.
  • the inner pipe adapter can furthermore be easily inserted into the outer pipe adapter.
  • the inner wall forming the passage thus having two functions.
  • connection assembly as described in the preamble of claim 1 is known for connection of an outer pipe and an inner pipe concentric therewith to connection pipe stubs in the boiler, said connection pipe stubs having the same diameter as the pipes.
  • the connection for the outer pipe forms a shell provided with two flanges, which shell is put around the pipe stub at the boiler and around the lower end of the outer pipe, after which the flanges are riveted or fastened to each other with bolts.
  • the connection for the inner pipe comprises a piece of pipe that is placed around the lower end of the inner pipe and around the upper end of a connection pipe, which connection pipe itself is accommodated with its lower end in the connection pipe stub on the boiler.
  • connection pipe Within the connection pipe a piece of pipe is placed that has been formed with a narrowing, a condensation drain pipe being placed at the level of the narrowing of the piece of pipe, said condensation drain pipe being radially extending outwardly through the connection shell for the outer pipe, which condensation drain drains condensation intercepted in the annular space between the narrowing of the piece of pipe and the connection pipe.
  • the passage is situated at the level of the condensation drain means, so that the length of the inner pipe adapter in boiler direction is as small as possible.
  • Such an inner pipe adapter is easier to produce, particularly injection moulding is more feasible.
  • the upper end of the inner pipe adapter may form a pipe stub here, that changes into an outer wall of the annular channel.
  • condensation drain means comprise a spout, that extends fittingly through an opening in the outer pipe adapter
  • the spout is provided with an accommodation space for a sealing ring for sealing against the opening in the outer pipe adapter, so that suction of air from the direct surroundings of the boiler is counteracted.
  • the accommodation space can be defined in a simple manner by two circumferential ribs on the spout that are consecutive in spout direction.
  • the inner pipe adapter is provided with stop means for abutment against the inner surface of the outer pipe adapter, which stop means preferably are situated at the lower side of the spout.
  • the short design of the inner pipe adapter makes it possible to provide it with one or more radial spacer means extending away from the spout, for engaging the inner surface of the outer pipe adapter. In this way the position of the inner pipe adapter can in a reliable way be at least almost perfectly concentric with respect to the outer pipe adapter, which facilitates the installation of the pipes.
  • the inner pipe adapter is provided with a spacer member that extends diametrically away from the spout, and which is preferably provided with an inclined edge. As a result the insertion of the inner pipe adapter is facilitated, as well as the stability of the inner pipe adapter after placing.
  • positioning means are provided on the inner wall of the outer pipe adapter for positioning the spacer means in axial direction, so that the inner pipe adapter can also be correctly placed in axial direction in a reliable manner.
  • the invention provides in an adapter having an annular condensation interception channel and connected spout, in which the bottom of the annular channel is inclined with respect to the centre line of the inner pipe adapter, in which the spout connects to the lowest point of the annular channel.
  • the inclined bottom of the annular channel guarantees a smooth condensation drainage, in which it is not objectionable when the adapter is slightly obliquely tilted, in a direction away from the spout.
  • the lower ends of the inner pipe adapter and the outer pipe adapter have a diameter of 60 mm and 100 mm, respectively, and/or the upper ends of the inner pipe adapter and the outer pipe adapter have a diameter of 80 mm and 125 mm, respectively.
  • the outer pipe adapter is provided with a flange member that is formed as a unity therewith, for attachment to a boiler housing.
  • the outer pipe adapter is provided with a flange member that can be coupled thereto, for attachment to a boiler housing.
  • the flange member is provided with a circumferential series of attachment holes.
  • the inner pipe adapter and the outer pipe adapter have each been manufactured by means of injection moulding.
  • the invention provides an assembly of an adapter according to the invention and a connection pipe at boiler side, that is detachably and fittingly accommodated in the passage in the inner pipe adapter or adapter, respectively.
  • FIG 1 shows the boiler or gas device of the closed type 1, in which a burner has been positioned that has not been further shown.
  • the flue gas discharge and the combustion air supply are concentric with respect to each other here.
  • In the upper wall 3 of the housing a passage has been made for the exchange of the gasses.
  • the combustion air is sucked in downwards through the annular opening by the burner, and the flue gasses are discharged via a boiler-fixed piece of pipe 55, onto which in an indirect manner the adapter 2 has been arranged.
  • the adapter 2 comprises an outer casing 6 and an inner member 7 that defines a pipe-shaped passage 10.
  • the casing 6 has a lower portion 22, which in this example may have a diameter of 100 mm, which portion 22 changes into a wider upper portion 24 via a conically flaring portion 23, which upper portion 24 in this example may have a diameter of 125 mm.
  • the lower portion 22 is provided with a groove 28, which with protrusions 27 on a collar 5 of flange 4 may form a bayonet catch.
  • the flange 4 is provided with holes 32 for attachment, for instance by means of screws, to the upper wall 3 of the boiler housing. In this way the casing 6 can easily be placed and attached on top of the opening in the upper wall 3.
  • the conical portion 23 is at one location provided with a hole 40 for a condensation drain pipe 14 to be further discussed.
  • the upper portion 24 is provided with an annular chamber 25 in which a sealing 26 that is known per se, is accommodated, which sealing is provided with an inclined radially inwardly extending lip. Said sealing 26 seals against the outside of an outer pipe 30, which extends further towards the discharge structure (not further shown).
  • the inner part or condensation interception piece 7 has an upper portion 8 that is circle-cylindrical and at the upper end is provided with a radially opening annular chamber 9 for accommodation of a sealing ring 57. In this way an inner pipe is received in a sealing manner, which inner pipe also leads to the discharge structure that is not shown.
  • annular chamber 11 In the passage 10 an annular chamber 11 is also provided, in which a simple O-sealing ring 56 is accommodated.
  • a separate piece of pipe 50 -adapted to the installation in question- can be accommodated in a sealing manner, adjustable in axial direction.
  • This piece of pipe 50 has a widened lower portion 52, in which an annular chamber 53 is provided that opens radially to the inside, for a sealing ring 54. In this way the boiler-fixed piece of pipe 55 can be received in a sealing manner.
  • the condensation interception piece has a collar 12 which is a continuation of the passage 10. Said collar together with the wall portion 8 defines an annular channel 13 for the interception of condensation that flows downwards along the inner surface of the inner pipe 29 and may not end up in the boiler 1.
  • the bottom 31 of the annular channel runs inclined, and such that the highest point is shown in figure 1 at the left-hand side, and the lowest point is shown at the location of the entrance of the spout 14.
  • the inclined bottom is schematically shown by means of a dotted line S.
  • the spout 14 is provided with double circumferential ribs 15a, 15b which define an accommodation space for a sealing ring 16. With this ring 16 the sealing takes place in the hole 50 in the casing 6.
  • the condensation drain piece is provided with two shoulders 18a and 18b which may abut the inner surfaces present there in casing 6, as shown in figure 1. In this way the location of the spout 14 in the direction to the right as seen in the drawing is secured. Shoulder 18a changes into a widened lower edge 17 of the passage 10 and of the inner part 7. The lower edge 17 is situated at the location of the transition of the portions 22 and 23 of the casing 6.
  • a partition 19 is integrally formed on the condensation interception piece, which partition 19 with the end edge 21 fits in the accommodation space between the said ribs 20 and is provided with an inclined lower edge 19a.
  • the fitter may first, with overview, arrange the piece of pipe 50 on piece of pipe 55. Subsequently he takes the assembly of casing 6 and including the condensation interception piece 7 that has already been inserted into it from the top in the factory, and that is accommodated in it in a press fitting manner. During said insertion in the factory, the spout 14 will be kept slightly downwardly inclined, so that it may pass through the opening 50. When the sealing ring 16 has ended up at the opening 50, tilting of the condensation interception piece 7 will be able to take place in the direction M, in which the edge 21 comes to lie fittingly between the ribs 20. The inclined lower edge 19a facilitates the said tilting movement.
  • the fitter places the adapter assembly 2 with the flange 4 on the upper wall 3 of the boiler 1.
  • the passage 10 and the collar 12 are simply slid over the narrowed upper portion of the piece of pipe 50.
  • the flange 4 is secured to the upper wall 3 of the housing of the boiler 1 by means of screws, and the entire adapter 2 is secured in that way.
  • the inner pipe 29 and the outer pipe 30 can be placed in a simple manner.
  • Both casing 6 and condensation interception piece 7 may each be injection moulded as an element forming one unit, for instance from cast aluminium.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Claims (19)

  1. Adaptateur (2) pour deux canalisations concentriques pour dispositifs à gaz, en particulier une canalisation interne pour décharger des gaz d'évacuation d'une chaudière (1) vers l'extérieur et une chemise externe qui, avec la canalisation interne, définit une conduite externe annulaire pour amener de l'air de combustion vers la chaudière, comprenant un adaptateur de canalisation interne (7) et un adaptateur de canalisation externe (6), chacun ayant une extrémité inférieure et une extrémité supérieure, chacun pouvant être respectivement couplé à d'autres premières canalisations menant à la chaudière et à des secondes canalisations (29, 30) menant hors de la chaudière et vers une structure de décharge, l'adaptateur de canalisation interne (7) étant muni d'un moyen d'interception de la condensation (13) et d'un moyen de vidange de la condensation (14), caractérisé en ce que l'adaptateur de canalisation interne (7) est muni d'une paroi interne (12) d'un seul tenant avec le reste de l'adaptateur interne (7) et délimitant vers l'intérieur un passage (10) permettant de loger une canalisation interne (50) côté chaudière, ledit passage étant situé au-dessus de l'extrémité inférieure de l'adaptateur de canalisation externe (6), où ladite paroi interne forme aussi une paroi interne annulaire pour un canal annulaire (13) défini par le moyen d'interception de la condensation (13).
  2. Adaptateur selon la revendication 1, dans lequel le passage (10) est situé au niveau du moyen de vidange de la condensation (14).
  3. Adaptateur selon la revendication 2, dans lequel le bas (31) du canal annulaire est incliné par rapport à la ligne centrale de l'adaptateur de canalisation interne (7), une goulotte se connectant au point le plus bas du canal annulaire (13).
  4. Adaptateur selon la revendication 3, dans lequel l'extrémité supérieure de l'adaptateur de canalisation interne forme une embase de canalisation (8) qui se modifie en une paroi externe du canal annulaire (13).
  5. Adaptateur selon l'une quelconque des revendications précédentes, dans lequel le moyen de vidange de la condensation comprend une goulotte (14) qui s'étend de façon à s'adapter par une ouverture (40) dans l'adaptateur de canalisation externe (6), la goulotte étant de préférence formée d'un seul tenant avec l'adaptateur interne (7).
  6. Adaptateur selon la revendication 5, dans lequel au niveau de sa circonférence, la goulotte (14) est munie d'un espace de logement pour un joint d'étanchéité (16) permettant l'étanchéité contre l'ouverture dans l'adaptateur de canalisation extérieur (6), ledit espace de logement étant de préférence défini par deux nervures circonférentielles (15a, 15b) sur la goulotte (14) qui sont consécutives dans la direction de la goulotte.
  7. Adaptateur selon la revendication 5 ou 6, dans lequel l'adaptateur de canalisation interne (7) près de la goulotte est muni de moyens d'arrêt (18a, 18b) pour butter contre la surface interne de l'adaptateur de canalisation externe (6), ledit moyen d'arrêt étant de préférence situé au niveau du côté inférieur de la goulotte (14).
  8. Adaptateur selon l'une quelconque des revendications 5 à 7, dans lequel l'adaptateur de canalisation interne (7) est muni d'un ou de plusieurs moyens d'espacement radiaux (19) pour mettre en prise la surface interne de l'adaptateur de canalisation externe (6), lesdits moyens s'étendant à l'opposé de la goulotte (14), où l'adaptateur de canalisation interne est de préférence muni d'un élément d'espacement (19) qui s'étend diamétralement opposé à la goulotte, et qui est de préférence muni d'un bord incliné (19a).
  9. Adaptateur selon la revendication 8, dans lequel des moyens de positionnement (20) sont prévus sur la paroi interne de l'adaptateur de canalisation externe (6) pour positionner les moyens d'espacement (19) dans la direction axiale.
  10. Adaptateur selon la revendication 8 ou 9, dans lequel des moyens de positionnement (20) sont prévus sur la paroi interne de l'adaptateur de canalisation externe pour positionner les moyens d'espacement (19) dans la direction circonférentielle.
  11. Adaptateur selon l'une quelconque des revendications 8 à 10, dans lequel le moyen d'espacement (19) et le moyen de positionnement (20) viennent en prise l'un avec l'autre sur une longueur dans la direction axiale.
  12. Adaptateur selon l'une quelconque des revendications précédentes, dans lequel les extrémités inférieures de l'adaptateur de canalisation interne (7) et de l'adaptateur de canalisation externe (6) ont un diamètre différent par rapport aux extrémités supérieures de l'adaptateur de canalisation interne et de l'adaptateur de canalisation externe.
  13. Adaptateur selon l'une quelconque des revendications précédentes, dans lequel les extrémités inférieures de l'adaptateur de canalisation interne (7) et de l'adaptateur de canalisation externe (6) ont un diamètre de 60 mm et de 100 mm respectivement.
  14. Adaptateur selon l'une quelconque des revendications précédentes, dans lequel les extrémités supérieures de l'adaptateur de canalisation interne (7) et de l'adaptateur de canalisation externe (6) ont un diamètre de 80 mm et de 125 mm, respectivement.
  15. Adaptateur selon l'une quelconque des revendications précédentes, dans lequel l'adaptateur de canalisation externe (6) est muni d'un élément à bride qui est formé en tant qu'unité avec celui-ci, pour être raccordé à un logement de chaudière.
  16. Adaptateur selon l'une quelconque des revendications 1 à 14, dans lequel l'adaptateur de canalisation externe (6) est muni d'un élément à bride (4) qui peut être couplé à celui-ci, pour être raccordé à un logement de chaudière (3).
  17. Adaptateur selon la revendication 15 ou 16, dans lequel l'élément à bride (4) est muni d'une série circonférentielle de trous de fixation (32).
  18. Adaptateur selon l'une quelconque des revendications précédentes, dans lequel l'adaptateur de canalisation interne (7) et l'adaptateur de canalisation externe (6) sont chacun fabriqués en une pièce au moyen d'un moulage par injection.
  19. Ensemble d'un adaptateur (2) selon l'une quelconque des revendications précédentes et d'une canalisation de raccordement (50) côté chaudière, qui est logée de façon amovible et ajustée dans le passage (10) de l'adaptateur de canalisation interne (7).
EP20020076129 2001-03-26 2002-03-25 Piece intermediaire pour tuyaux de dispositifs à gaz Expired - Lifetime EP1245902B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1017691A NL1017691C2 (nl) 2001-03-26 2001-03-26 Adapter voor leidingen voor gastoestellen.
NL1017691 2001-03-26

Publications (2)

Publication Number Publication Date
EP1245902A1 EP1245902A1 (fr) 2002-10-02
EP1245902B1 true EP1245902B1 (fr) 2005-10-05

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ID=19773131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020076129 Expired - Lifetime EP1245902B1 (fr) 2001-03-26 2002-03-25 Piece intermediaire pour tuyaux de dispositifs à gaz

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EP (1) EP1245902B1 (fr)
NL (1) NL1017691C2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8028438B2 (en) * 2004-07-02 2011-10-04 Aqualizer, Llc Moisture condensation control system
ITBG20040046A1 (it) * 2004-12-02 2005-03-02 Groppalli S R L Dispositivo per il recupero del calore dei fumi di scarico di una caldaia domestica
GB2422187B (en) 2005-09-27 2008-02-13 Zenex Technologies Ltd A flue, and a boiler including such a flue
IT1392764B1 (it) * 2009-01-28 2012-03-16 Fonderie Sime S P A Struttura di caldaia particolarmente per uso domestico
DE102017112874A1 (de) * 2017-06-12 2018-12-13 Schiedel Gmbh Anschlussvorrichtung, System aus einer Zwischenplatte und einer Anschlussvorrichtung, Vorrichtung zum Betrieb einer Feuerstätte und ein Verfahren zum Verbinden eines Doppelrohrs mit einer Feuerstätte
CN110081453B (zh) * 2018-01-26 2023-02-24 博世热力技术（上海）有限公司 锅炉气体循环装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60186655A (ja) * 1984-03-07 1985-09-24 Matsushita Electric Ind Co Ltd 強制排気型ガス湯沸器の排気装置
DE3520130A1 (de) * 1984-09-18 1986-03-27 Robert Bosch Gmbh, 7000 Stuttgart Installationseinheit mit einem abgasrohr und einem frischluftrohr
AT405330B (de) * 1996-03-11 1999-07-26 Vaillant Gmbh Anschlusseinrichtung für eine abgas-luftleitung

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Publication number Publication date
EP1245902A1 (fr) 2002-10-02
NL1017691C2 (nl) 2002-09-27

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