EP2871416A1 - Tube adaptateur pour élément tubulaire de longueur variable - Google Patents

Tube adaptateur pour élément tubulaire de longueur variable Download PDF

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Publication number
EP2871416A1
EP2871416A1 EP20130191803 EP13191803A EP2871416A1 EP 2871416 A1 EP2871416 A1 EP 2871416A1 EP 20130191803 EP20130191803 EP 20130191803 EP 13191803 A EP13191803 A EP 13191803A EP 2871416 A1 EP2871416 A1 EP 2871416A1
Authority
EP
European Patent Office
Prior art keywords
adapter
mating
tube
plug
region
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.)
Withdrawn
Application number
EP20130191803
Other languages
German (de)
English (en)
Inventor
Jürgen Böhm
Karl-Ludwig Völklein
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.)
eka edelstahlkamine GmbH
Original Assignee
eka edelstahlkamine GmbH
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 eka edelstahlkamine GmbH filed Critical eka edelstahlkamine GmbH
Priority to EP20130191803 priority Critical patent/EP2871416A1/fr
Publication of EP2871416A1 publication Critical patent/EP2871416A1/fr
Withdrawn legal-status Critical Current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 
    • F23J13/04—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
    • 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

Definitions

  • the invention generally relates to an adapter tube for a plug-in system in the exhaust, ventilation and / or air conditioning.
  • the invention relates to an adapter tube with an adapter plug-in region, wherein the adapter tube with
  • plug-in system for pipe connections for the supply and / or discharge of gases in use.
  • the EP 1 431 659 B1 concerns, for example, a plug-in system for single-walled pipe connections for use in the exhaust, ventilation or air conditioning technology, wherein one end of a single-walled tubular element is formed as a male part and an end of another single-walled tubular element as a sleeve part, wherein the two ends can be plugged together sealingly.
  • this plug-in system comprises pipe elements, in which at one end a socket part and at the other end is a plug-in part, so that from a plurality of such pipe elements, a sealed overall pipe can be made by plugging together.
  • EP 1 821 019 B1 a pipe joint consisting of a metallic press fitting, in which a sealing ring is arranged, and a metallic conduit pipe insertable therein and a retaining means in the form of an annular clamping element preventing the axial return movement of the conduit pipe.
  • the metallic conduit can be shortened by simply separating.
  • the problem associated with this pipe connection is that a sealing ring is used which does not withstand the stresses in the exhaust gas, ventilation and / or air conditioning technology.
  • a sealing pipe connection in which a connection between the connecting part and a composite pipe does not require a sealing ring, but can only be achieved by means of a deformation of the composite pipe with the aid of a compression sleeve.
  • the preparation of such a compound is complicated and requires special tools, which is not available on site, for example, on construction sites, regularly.
  • this pipe connection also allows no adjustment of the length. Because the composite pipe has on the side to be connected to the connector part a special holder that can not be separated, because without them the connection to the connector part can not be made.
  • the object of the invention is therefore to provide an adapter tube, with which it is possible to produce a pipe element with variable length, which has on one side a sleeve part and on the other side an insertion part.
  • the production should be particularly easy and without special tools possible.
  • the adapter tube according to the invention is suitable for a plug-in system in the exhaust, ventilation and / or air conditioning and has an adapter plug on.
  • the adapter tube is sealingly connectable to a counter tube having a mating plug portion only by mating the adapter plug portion and the mating plug portion, the mating plug portion of the mating tube being in the form of a hollow cylinder.
  • the adapter tube is characterized in that a sealing element is integrally formed on the adapter plug-in area. Mating the adapter plug-in area and the mating plug-in area is not to be understood as meaning that adapter plug area and mating plug area must be able to be plugged together merely by manual compression. Rather, it also means that the adapter plug-in area and the mating plug-in area are put together by exerting increased forces, for example generated by hammer strikes.
  • This adapter tube according to the invention is advantageous because in the connected state of the adapter tube and the counter tube only a sealing surface is formed, while at least two sealing surfaces are formed in a separate sealing element. This achieves a better seal.
  • the sealing element is firmly connected to the adapter tube and can not slip. This allows a higher compression pressure between the sealing element and the counter tube are used, which in turn a better seal is achieved.
  • the same material as for the adapter tube is used for the sealing element, which is selected according to the purpose of use, namely in the exhaust, ventilation and / or air conditioning.
  • the connector allows the use of the adapter tube with a counter tube whose mating plug has no special configuration. Rather, the mating plug-in area only has to be configured substantially non-positively.
  • the counter tube could have the form of a hollow cylinder on the side of the mating plug region. This can be shortened by separating so that again a mating plug area in the form of a hollow cylinder is formed. For the separation, only a release agent is needed, such as a cut-off machine, which can be found on virtually every site.
  • the adapter tube is suitable for producing a variable length pipe element for a plug-in system in the exhaust, ventilation and / or air conditioning.
  • the adapter plug-in area is designed such that the adapter tube with the counter tube only by mating the adapter plug portion and the mating plug portion is metallically sealingly connected.
  • metallic sealing in contrast to so-called soft-sealing arrangements to understand and in particular not limited to the use of metallic materials, but also includes arrangements in which the sealing surfaces of other hard materials such as ceramics are formed and so-called metal ground seals ,
  • This embodiment is advantageous because the sealing element and the adapter tube made of metal, preferably stainless steel, and thus compared to known sealing materials, such as rubbers based on silicone or fluorine, are particularly resistant. This is particularly advantageous for use in exhaust technology. Because temperatures of over 600 ° C and pressures over 50 hPa can occur there. Furthermore, the exhaust gases contain aggressive components, such as SO2, SO3, NO, NO2, NO3. Dissolve these in water, which is also part of the combustion air in the form of water vapor, so it forms a highly aggressive condensate. In these requirements, known sealing materials such as e.g. Silicone-based or fluorine-based rubbers are not usable or can be used only to a limited extent since they are formed by sulfurous constituents, such as sulfuric acid.
  • known sealing materials such as e.g. Silicone-based or fluorine-based rubbers are not usable or can be used only to a limited extent since they are formed by sulfurous constituents, such as sulfuric acid.
  • sulphurous acid or sulfuric acid and / or nitrous ingredients, e.g. nitrous acid or nitric acid, attacked in the exhaust gases or the condensate of the combustion air and can even be destroyed by concentration.
  • these sealing materials are usually used only up to a continuous temperature of about 200 ° C.
  • the adapter tube is made of metal, preferably of stainless steel, particularly preferably of one of stainless steel 1.4404 and 1.4301.
  • the counter tube is made of metal, preferably of stainless steel, particularly preferably of one of stainless steel 1.4404 and 1.4301.
  • the diameter of the adapter tube is between 80 mm and 200 mm.
  • the seal is best for these dimensions.
  • the wall thickness of the adapter tube diameter of the hollow cylinder is between 0.6 mm and 1.0 mm.
  • the seal is best for these dimensions.
  • the sealing element is configured such that the sealing element mediates a sealing press fit between the adapter plug region and the mating plug region when the mating tube is connected to the adapter tube by plugging together.
  • the sealing element is arranged in the connected state between the adapter plug-in area and the mating plug-in area. There it conveys the interference fit between the adapter plug-in area and the mating plug-in area. Thus, during the mating of the adapter plug-in area and the mating plug-in area, inter alia the sealing element is compressed between the adapter plug-in area and the mating plug-in area, resulting in a sealing connection.
  • the adapter plug-in region is designed such that the adapter plug region and the mating plug region form a frictional plug connection in the assembled state, wherein the sealing element gives the adapter plug region such an excess over the mating plug region that the adapter plug region and the mating plug region form a compression seal in the assembled state ,
  • This embodiment has the advantage that both a mechanical plug connection between the adapter plug and the mating plug region as well as a compression seal are achieved in a particularly effective manner.
  • the compression seal prevents leakage of fluids through the connection between the adapter plug-in area and the mating plug-in area.
  • the plug connection and the compression seal together prevent an axial displacement of the adapter plug portion and the mating plug portion to each other.
  • the sealing element has the shape of a hollow cylinder, preferably a straight hollow circular cylinder.
  • This embodiment is advantageous because such a sealing element generates a uniform circumferential compression seal, wherein the compression pressure is ideally circumferentially homogeneous. This allows the compression seal to withstand higher pressures.
  • the length and wall thickness of the hollow cylinder determine the compression pressure as well as the force required to pin the adapter piece end and the mating plug portion together.
  • the edges of the hollow cylinder are shaped such that the adapter plug-in area and the mating plug-in area can be plugged together.
  • This embodiment is advantageous because the sealing connection between the adapter tube and the counter tube under certain circumstances (depending on the material and geometry of the two tubes) a very high compression pressure is required. This can only be achieved by a sealing element that gives the adapter plug-in area opposite the mating plug region a correspondingly large oversize. Due to the large excess, it can be difficult to put the two sections together. Correspondingly shaped edges facilitate mating.
  • the wall thickness of the sealing element is such that the sealing element mediates a sealing interference fit between the adapter plug region and the mating plug region when the mating tube is connected to the adapter tube by plugging together.
  • wall thickness is understood here the difference of the inner and outer diameter of the sealing element in the form of a hollow cylinder. Because the sealing element is formed integrally with the adapter plug-in area, the wall thickness corresponds to the elevation of the sealing element relative to the surrounding surface of the adapter plug-in area.
  • the wall thickness of the sealing element is between 0.05 mm and 2.2 mm, preferably between 0.1 mm and 0.4 mm, and particularly preferably between 0.1 mm and 0.2 mm. These wall thicknesses of the sealing element are particularly suitable for achieving a clean compression with hammer blows.
  • the length of the sealing element is between 10 mm and 200 mm, preferably between 30 and 90 mm.
  • This length of the sealing element is particularly advantageous because it is long enough to impart a good seal and is not too long, so that the compression forces become too high, thereby deforming the edges of the required sleeve or mating end.
  • the sealing element has a circumferential recess.
  • the circumferential recess serves as a capillary barrier and / or as a moisture collector and prevents, for example, leakage of condensate.
  • the adapter tube has a stop, in particular a stop bead, which determines a maximum insertion depth when the adapter plug region and the mating plug region are plugged together.
  • This embodiment is advantageous because the stop makes it possible to precisely adapt the overall length of a tube element produced from the connection between an adapter tube and counter tube.
  • the total length of the pipe element produced with the shortened counter tube is shortened compared to a pipe element produced with an unbacked counter tube, when the adapter tube and the counter tube is respectively mated to the maximum insertion depth ,
  • the adapter plug-in area is designed such that the adapter tube with the counter tube is still sealingly connectable solely by mating the adapter plug and the mating plug, when the mating tube has been shortened by a short length alone by separating a part on the side of the mating plug ,
  • This embodiment is particularly advantageous because with only two widely used on construction sites tools, the length of a tube, consisting of a compound of the adapter tube according to the invention and the counterpart, can be adjusted.
  • These tools may be a cut-off grinder for severing a portion of the mating tube and a hammer for mating the male adapter portion and the mating male portion. Special tools are not needed.
  • the short length corresponds to a predetermined discrete length or one of a plurality of predetermined discrete lengths.
  • the invention further relates to a pipe element for a plug-in system in the exhaust, ventilation and / or air conditioning.
  • the tube element has the adapter tube according to one of the embodiments described above and a counter tube with a mating plug portion, which has the shape of a hollow cylinder.
  • the mating tube can be shortened so by a short length alone by separating a part on the side of the mating plug-in area, that the shortened mating tube again has a mating plug-in area, it is preferably not necessary that the short length of a predetermined discrete length or one of several predetermined discrete lengths.
  • This embodiment is advantageous because the counter tube on the side of the mating plug portion arbitrarily - limited only by a maximum short length - can be shortened, so that the total length of the tube element produced from a compound of the adapter tube and the counter tube can be shortened according to any.
  • a pipe element for use in a plug-in system with a required overall length in a simple manner, namely by separating and plugging can also locally, for example on a construction site, produce.
  • the entire length of the tubular element in the state in which the counter tube is connected to the adapter tube by plugging can be shortened by a short length alone by separating a part on the side of the mating plug portion before joining.
  • the counter tube on the side of the mating plug region has the shape of a straight hollow cylinder, which is preferably longer than the mating plug portion, so that even the mating plug portion itself has the shape of a straight hollow cylinder.
  • the counter tube can be shortened on the side of the mating plug portion alone by separating a part of the counter tube such that the shortened counter tube again has a mating plug portion, wherein it is not necessary that a discrete length is separated. Rather, any length can be separated - but limited by the length of the hollow cylindrical shape on the side of the mating plug portion of the counter tube.
  • the end of the adapter tube opposite the adapter plug region has a socket part and the end of the counter tube opposite the mating plug region has a plug-in part.
  • the end of the adapter tube opposite the adapter plug region has a plug-in part and the end of the mating tube opposite the mating plug-in region has a socket part.
  • the tube element has sealing paste, in particular ceramic sealing paste, on the adapter plug region and / or on the mating plug region.
  • sealing paste in particular ceramic sealing paste
  • the ceramic paste in the connected state provides an even better seal between the adapter plug region and the mating plug region. Because ceramic paste protects compounds, even after prolonged exposure to heat and atmospheric influences. Ceramic paste has water-displacing properties and protects against corrosion.
  • the inner wall of the adapter tube and / or the inner wall of the counter tube on a circular cylindrical shape is a circular cylindrical shape.
  • the adapter plug-in region and / or the mating plug-in region are designed such that the adapter plug-in region can be pushed into the mating plug-in region.
  • the adapter plug-in area and / or the mating plug-in area are configured such that the mating plug-in area can be pushed into the adapter plug-in area.
  • the counter tube at the mating plug region has no thread, clamping element, annular peripheral recess, clamping device, sleeve.
  • the adapter tube has a clamping band for securing the connection between the adapter tube and the counter tube.
  • the adapter tube is sealingly connectable to a mating tube having a mating plug portion only by mating the adapter plug portion and the mating plug portion.
  • the aforementioned tubes and tube elements can be designed as single-walled or double-walled and, in the case of a double-walled design, be provided either with insulating material and / or the possibility of guiding a further gas.
  • additional stabilization can be inserted between the pipes, either by introducing an insulating material or by spacers.
  • Typical insulation materials are, for example, mineral fibers, ceramic fabrics, ceramic fleece, or the like.
  • mineral fiber based insulation material is preferred.
  • the pipes and pipe elements according to the invention are applicable to all nominal widths which are required for the exhaust gas or ventilation systems according to technical design / calculation.
  • Fig. 1 shows a tube element known from the prior art for use in a plug-in system, which is typically only available in standard lengths.
  • the pipe member 100 has a main body 102 having the shape of a hollow, right circular cylinder. At one of its two ends, this main body has a sleeve part 104 and at the opposite end an insertion part 106.
  • the pipe element is made of metal, so that it is suitable for example for the discharge of hot exhaust gases.
  • the sleeve part 104 and the insertion part 106 are configured such that the insertion part 106 can be inserted into a corresponding sleeve part 104 of an identical other tube element, so that a sealing connection between the tube element 100 and the other tube element results.
  • FIG. 2a shows a tube member 200, which includes an adapter tube 200 and a counter tube 300.
  • the adapter tube 200 has a main body 202 having the shape of a hollow, right circular cylinder. At one of its two ends, this main body 202 has a sleeve portion 204 and at the opposite end an adapter plug portion 306.
  • the sleeve portion 204 of the adapter tube 200 is configured as well as the sleeve portion 104 of the tubular element 100th
  • the counter tube 300 has a main body 302, which also has the shape of a hollow, right circular cylinder. At one of its two ends, this main body 302 has an insertion part 306.
  • the insertion part 306 of the counter tube 300 is designed in the same way as the insertion part 106 of the tubular element 100.
  • the main body 302 has a mating region 310, which has the shape of a hollow cylinder ,
  • the counter tube 300 can be shortened by a short length alone by separating a portion 304 on the side of the mating portion 310 so that the shortened counter tube 300 again has a mating portion 312, wherein it is not necessary that the short length of a predetermined discrete length or one of corresponds to a plurality of predetermined discrete lengths.
  • FIG. 2a shows the tube member, wherein the adapter tube 200 and the counter tube 300 are connected by sealing only metallic sealing.
  • the main body 202 of the adapter tube 200 can only be seen in cross section.
  • the adapter plug-in area 210 is designed such that the adapter plug-in area 210 and the mating plug-in area 310 form a frictional plug-in connection in the plugged-together state, whereby the sealing element 220 gives the adapter plug-in area 210 such oversize relative to the mating plug-in area 310 that the adapter plug-in area 210 and the mating plug-in area 310 are plugged together Condition form a compression seal.
  • the sealing element 220 has the shape of a straight, hollow circular cylinder, wherein the edges 228 of the hollow cylinder are shaped such that the adapter plug portion 210 and the mating portion 310 are plugged together.
  • the wall thickness 222 of the sealing member 220 is such that the sealing member 220 provides a sealing interference fit between the adapter plug portion 210 and the mating plug portion 220 when the mating tube 300 is sealingly connected to the adapter tube 200 by mating.
  • Fig. 3 shows a section of the adapter plug portion 210 of the adapter tube 200th
  • the wall thickness 222 of the sealing element 220 is between 0.05 mm and 2.2 mm, preferably between 0.1 mm and 0.4 mm, and particularly preferably between 0.1 mm and 0.2 mm.
  • the length 224 of the sealing element 220 is between 10 mm and 200 mm, preferably between 30 and 90 mm.
  • the sealing element 220 has a circumferential recess 226.
  • the circumferential recess 226 serves as a capillary barrier and / or as a moisture collector and prevents, for example, a leakage of condensate by capillary action.
  • the adapter tube 200 has a stop bead 230, which determines a maximum insertion depth D when the adapter plug region 210 and the mating plug region 310 are plugged together.
  • the size ratios of the individual components of the tubular element are not reproduced to scale for clarity.
  • the wall thickness 222 of the sealing element 220 is shown enlarged and the outer diameter of the main body 202 of the adapter tube 200 is shown reduced in size.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
EP20130191803 2013-11-06 2013-11-06 Tube adaptateur pour élément tubulaire de longueur variable Withdrawn EP2871416A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20130191803 EP2871416A1 (fr) 2013-11-06 2013-11-06 Tube adaptateur pour élément tubulaire de longueur variable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20130191803 EP2871416A1 (fr) 2013-11-06 2013-11-06 Tube adaptateur pour élément tubulaire de longueur variable

Publications (1)

Publication Number Publication Date
EP2871416A1 true EP2871416A1 (fr) 2015-05-13

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EP20130191803 Withdrawn EP2871416A1 (fr) 2013-11-06 2013-11-06 Tube adaptateur pour élément tubulaire de longueur variable

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EP (1) EP2871416A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0611911B1 (fr) 1993-02-16 1995-11-02 FRÄNKISCHE ROHRWERKE, GEBR. KIRCHNER GmbH & Co. Raccord étanche des tuyaux composites en matière plastique-métal-plastique
DE19519073A1 (de) * 1994-05-24 1995-11-30 Sem Schneider Elementebau Gmbh Vorrichtung zur Verbindung von Rohrleitungsabschnitten untereinander
EP0798513A2 (fr) * 1996-03-23 1997-10-01 Karl Schräder Nachfolger Inh. Karl-Heinz Schräder Elément tubulaire à double paroi pour la fabrication de cheminées
EP1630322A1 (fr) * 2003-05-09 2006-03-01 Dinak S.A. Ameliorations apportees a un systeme de couplage etanche destine a des cheminees et conduits modulaires prefabriques
FR2885200A1 (fr) * 2005-04-28 2006-11-03 Fldh Soc Par Actions Simplifie Conduit de fumee ou analogue
EP1431659B1 (fr) 2002-12-21 2007-04-04 eka edelstahlkamine gmbh Connection pour tuyaux possédant une extremité à diamètre non cylindrique mais continu
EP1821019B1 (fr) 2006-02-17 2009-02-11 Geberit Technik Ag Raccord de tuyauterie

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0611911B1 (fr) 1993-02-16 1995-11-02 FRÄNKISCHE ROHRWERKE, GEBR. KIRCHNER GmbH & Co. Raccord étanche des tuyaux composites en matière plastique-métal-plastique
DE19519073A1 (de) * 1994-05-24 1995-11-30 Sem Schneider Elementebau Gmbh Vorrichtung zur Verbindung von Rohrleitungsabschnitten untereinander
EP0798513A2 (fr) * 1996-03-23 1997-10-01 Karl Schräder Nachfolger Inh. Karl-Heinz Schräder Elément tubulaire à double paroi pour la fabrication de cheminées
EP1431659B1 (fr) 2002-12-21 2007-04-04 eka edelstahlkamine gmbh Connection pour tuyaux possédant une extremité à diamètre non cylindrique mais continu
EP1630322A1 (fr) * 2003-05-09 2006-03-01 Dinak S.A. Ameliorations apportees a un systeme de couplage etanche destine a des cheminees et conduits modulaires prefabriques
FR2885200A1 (fr) * 2005-04-28 2006-11-03 Fldh Soc Par Actions Simplifie Conduit de fumee ou analogue
EP1821019B1 (fr) 2006-02-17 2009-02-11 Geberit Technik Ag Raccord de tuyauterie

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