EP3156725B1 - Belüftungs- und/oder rauchgas-abführsystem mit konzentrischen innen- und aussenrohren - Google Patents

Belüftungs- und/oder rauchgas-abführsystem mit konzentrischen innen- und aussenrohren Download PDF

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Publication number
EP3156725B1
EP3156725B1 EP16194139.8A EP16194139A EP3156725B1 EP 3156725 B1 EP3156725 B1 EP 3156725B1 EP 16194139 A EP16194139 A EP 16194139A EP 3156725 B1 EP3156725 B1 EP 3156725B1
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EP
European Patent Office
Prior art keywords
outer pipe
inner pipe
locking element
ventilation
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.)
Not-in-force
Application number
EP16194139.8A
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English (en)
French (fr)
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EP3156725A1 (de
Inventor
Martijn Anne Johan Lambert AARTS
Dimitri Petrus Gerardus HENDRIX
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.)
Cox Geelen Bv
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Cox Geelen Bv
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Publication of EP3156725A1 publication Critical patent/EP3156725A1/de
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Publication of EP3156725B1 publication Critical patent/EP3156725B1/de
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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 
    • 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

Definitions

  • the invention relates to a ventilation and/or flue gas discharge system for coupling thereto one or more combustion devices and/or one or more ventilation devices or ventilation grilles.
  • Separate or combined ventilation and flue gas discharge systems are installed in practice for ventilation purposes, such as for instance for supplying and/or discharging fresh air to and/or from a space, for discharging flue gases from heating devices or other combustion devices such as ovens, and for instance for supplying combustion air thereto.
  • Ventilation and flue gas discharge systems are constructed nowadays from plastic or metal tubes or pipes, such as tubes or pipes of polypropylene, aluminium or stainless steel.
  • the pipe material to be selected depends here on, among other factors, the type of combustion device, i.e. the type of combustion material such as gas, oil or wood, the final temperature of the flue gas to be discharged, which in higher efficiency devices will be lower than in the case of lower efficiency devices, and the degree of condensation in the pipe system.
  • Vente gas discharge channels to be replaced but also those to be newly installed are constructed in practice in the form of pipe systems assembled from mutually coupled pipe segments.
  • US 4 781 402 features of expansion clips mounted to the inner pipe.
  • the distal end of the clips are received in corresponding retainers mounted to the outer pipe for locking the inner pipe and the outer pipe in a longitudinal direction.
  • the invention has for its object to provide a solution for installing a combined ventilation and flue gas discharge system consisting of a coaxially or concentrically mounted inner pipe and outer pipe, particularly for a segment-wise assembling of such combined ventilation and/or flue gas discharge system.
  • the invention provides for this purpose a ventilation and/or flue gas discharge system comprising an inner pipe and outer pipe connectable by at least one locking element, wherein the or each locking element is attached to one of the inner pipe or outer pipe and wherein the other of the inner pipe or outer pipe is provided with at least one coupling element co-acting with a locking element such that in mounted state of the inner pipe in the outer pipe the or each locking element engages a coupling element and the inner pipe is coupled locked in longitudinal direction to the outer pipe, characterized in that, the or each locking element is mounted pivotally in at least one of tangential, radial or axial direction of an inner pipe or outer pipe.
  • the pivoting action with which the locking element engages on the coupling element makes it possible, by a respective relative movement of the inner pipe and outer pipe, to easily mount the inner pipe in and remove same from the outer pipe.
  • Such an assembly of a coupled inner pipe and outer pipe can also be provided from factory as a single integrated unit or be mounted if necessary on site.
  • the invention then makes it possible to couple such units in simple and flexible manner in order to assemble a complete concentric ventilation and/or flue gas discharge system.
  • the at least one locking element is attached resiliently to one of the inner pipe or outer pipe in radial direction thereof and the or each locking element and a coupling element co-acting therewith are designed relative to each other such that in mounted situation a locking element engages a respective coupling element in a form-locking and, through the resilient action, also in a force-locking manner, whereby a firm and durable locking is obtained.
  • the resilient, pivoting action of the locking element in axial and radial direction of one of the inner pipe or outer pipe achieves that, when the inner pipe is introduced into the outer pipe in longitudinal or axial direction from a first end thereof, at the position of the coupling element the locking element can engage the coupling element and that during engagement, movement of the inner pipe in longitudinal direction of the outer pipe is blocked.
  • the outer pipe on its inner peripheral wall, provided with at least one coupling element in the form of a cam-like element protruding inward in radial direction, and the inner pipe is provided on its outer peripheral wall with at least one resilient locking element coupled thereto.
  • the at least one cam-like element is particularly a cam running around in tangential direction, in particular a substantially semi-circular cam-like protrusion formed from the material of the peripheral wall wherein the locking element is provided with a correspondingly dimensioned semi-circular recess in radial direction of the inner pipe for receiving the peripheral cam in a form-locking manner therein.
  • the semi-circular shape of the cam and recess in the locking element facilitate engagement of the cam and the locking element when the inner pipe is received in longitudinal direction or axial direction in the outer pipe.
  • the inner pipe comprises a tubular coupling piece, such as a coupling piece formed as a sleeve for mutual coupling of inner pipe segments
  • the or each locking element is coupled to the coupling piece.
  • a tubular coupling piece suitable for use with the invention is disclosed in the above-mentioned non-prepublished Netherlands patent application 1041532 filed simultaneously in the name of applicant with the title: "Pipe system, coupling piece and method for installing the pipe system in a shaft of a building”, and in the non-prepublished Netherlands patent application 1041526 filed simultaneously in the name of applicant with the title: "Tubular coupling piece and branch pipe, particularly for use in a pipe system of a ventilation or flue gas discharge channel”.
  • the invention provides a ring element attachable to the outer peripheral wall of the inner pipe and/or to the outer peripheral wall of a tubular coupling piece, wherein the at least one locking element is coupled to the ring element.
  • the inner pipe can consist of a per se known and commercially available cylindrical pipe.
  • the locking element can be attached fixedly to the inner pipe, outer pipe or to a tubular coupling piece or to the ring element, the invention provides an embodiment wherein the at least one locking element is releasably attached.
  • Such a releasable coupling or attachment of the locking element facilitates disassembly of the assembled ventilation and/or flue gas discharge system.
  • the ventilation and/or flue gas discharge system it is preferable to apply at least two locking elements arranged at a distance from each other in tangential direction.
  • the invention provides for the use of four locking elements spaced 90 degrees apart in tangential direction.
  • the locking element is of approximately rectangular shape with two side surfaces located at a distance from each other, with a recess on a long side thereof for engagement therein of a cam-like coupling element, and with a resilient tongue protruding outward in the direction away from the recess.
  • the resilient action of the tongue operates such that in mounted situation a resilient force acts in radial direction on the locking element for engaging the locking element in force-locking manner on a coupling element.
  • the resilient tongue protrudes outward from a short side of the locking element and another short side of the locking element is provided with a receiving opening for receiving an attaching element clampingly therein, between the side surfaces, for attaching the locking element movably in radial direction to an attaching element.
  • the attaching element or plurality of attaching elements can be mounted here on the outer periphery of the inner pipe, on the inner periphery of the outer pipe or form part of a tubular coupling piece or form part of the ring element as described above.
  • the receiving opening connects on the other short side of the locking element to an open space which is formed between the side surfaces from the other long side and which, as seen from the receiving opening, diverges outward at the end and wherein the attaching element tapers at the end in the direction away from the peripheral wall of the inner pipe such that, when the attaching element is received in the open space of the locking element in longitudinal direction from the receiving opening, the locking element moves radially outward.
  • the tapering form of the attaching element and the open space in the locking element are adapted to each other such that, when the inner pipe is placed from a first end into the outer pipe and the locking element engages on the coupling element, the locking element is pressed in radial direction toward the coupling element and coupled firmly to the attaching element as the inner pipe is carried further into the outer pipe such that the inner pipe cannot be moved further in the outer pipe.
  • the invention also provides an inner pipe constructed from pipe segments coupled in longitudinal direction as described in particular in the above stated non-prepublished Netherlands patent applications in the name of applicant.
  • the outer pipe can also be constructed from pipe segments coupled in longitudinal direction, wherein according to the invention each outer pipe segment has a smaller diameter at a second end than at a first end thereof, or has a greater diameter at the first end than at the second end, for the purpose of receiving with the second end an outer pipe segment in the first end of another outer pipe segment, wherein the at least one locking element or coupling element is located close to the first end or close to the second end in an outer pipe segment.
  • each outer pipe segment is provided in an embodiment of the invention with a graduation scale running on the outer periphery of a pipe segment from the second end in the direction of the first end.
  • the outer pipe, or an outer pipe segment is provided in its peripheral wall, between the position where the at least one locking element or coupling element is located and the second end, with at least one connecting opening and/or passage opening for connection thereto and/or passage therethrough of a branch outer pipe to be connected to the ventilation and/or flue gas discharge system.
  • a branch outer pipe to be connected to the connecting opening on the outer periphery of an outer pipe engages fluid-tightly on the outer periphery of the outer pipe by means of a saddle gasket.
  • the saddle gasket has an upright slot-like edge for receiving an end of the branch outer pipe therein.
  • the branch outer pipe does not then protrude in the outer pipe, whereby removal of an inner pipe from the outer pipe is not obstructed, for instance during later renovation wherein the inner pipe system has to be replaced.
  • the branch outer pipe can be fixedly attached by screws or the like by means of for instance tongues attached on the edge of the connecting opening or passage opening to the wall of the outer pipe or formed therefrom.
  • the invention also provides an assembly of at least one coupled inner pipe and outer pipe locked in longitudinal direction as described in the foregoing.
  • FIG. 1 Shown schematically in figure 1 is an assembled ventilation and/or flue gas discharge system 10 according to an embodiment of the invention in a building consisting of multiple storeys 11, 12.
  • the ventilation and/or flue gas discharge system 10 comprises two pipe systems placed concentrically or coaxially relative to each other, viz. an outer pipe system 14 and an inner pipe system 15 received in the outer pipe system.
  • the outer pipe system 14 as seen in the direction from the ground floor 11 to the roof 13, is constructed from pipe segments coupled in longitudinal direction, viz. a first cylindrical outer pipe segment 23, a second cylindrical outer pipe segment 24 and a third cylindrical outer pipe segment 25.
  • the second outer pipe segment 24 is received fitting with an end in an end of the first outer pipe segment 23.
  • the third outer pipe segment 25 is received fitting with an end in another end of the second outer pipe segment 24 and the other end of the third outer pipe segment 25 ends on the roof 13 of the building in an end 19 of the outer pipe system 14 which is open to the outside air.
  • the inner pipe system 15 as seen in the direction from the ground floor 11 to the roof 13, is likewise constructed from pipe segments coupled in longitudinal direction, viz. a first cylindrical inner pipe segment 26, a second cylindrical inner pipe segment 27 and a third cylindrical inner pipe segment 28.
  • the inner pipe segments 26, 27, 28 are mutually coupled respectively via intermediate tubular coupling pieces, viz. a first cylindrical tubular coupling piece 29, a second cylindrical tubular coupling piece 30 and a third cylindrical tubular coupling piece 31.
  • the first inner pipe segment 26 is received fitting with an end in the first coupling piece 29 and received fitting with another end in the second coupling piece 30.
  • the second pipe segment 27 is received fitting with an end in the second coupling piece 30 and received fitting with another end in the third coupling piece 31.
  • the third pipe segment 28 is received fitting in an end of the third coupling piece 31 and the other end of the third pipe segment 27 ends on the roof 13 of the building in an end 32 of the pipe system 15 which is open to the outside air.
  • ventilation and/or flue gas discharge system 10 can be constructed in each case by coupling separate inner pipe segments and outer pipe segments, according to the invention the shown ventilation and/or flue gas discharge system 10 can advantageously also be constructed in each case from assemblies, to be coupled to each other, of an already coupled respective inner pipe segment and outer pipe segment 23, 26; 24, 27 and 25, 28.
  • Assembly substantially always takes place in practice in the situation where only the floors and walls of storeys 11, 12 have been built, wherein the lowest assembly can for instance be placed by means of floor supports (not shown) at a desired height and/or by means of fixing brackets or floor brackets 65 which rest on a party floor and which engage on a respective outer pipe segment, such as the outer pipe segment 23.
  • the inner pipe system 15 functions as flue gas discharge system and the outer pipe system 14 functions as ventilation system or combustion air supply system for combustion devices 16, 17, 18 connected to the ventilation and/or flue gas discharge system 10.
  • Located on the ground floor 11 in the shown embodiment are two combustion devices 17, 18, such as a central heating boiler and/or a hot water appliance.
  • a single combustion device 16 Situated on the first floor 12 of the building in the shown embodiment is a single combustion device 16.
  • the combustion devices 16, 17, 18 are connected via respective concentric branch pipes or branch pipe parts 22, 21, 20 to the ventilation and/or flue gas discharge system 10.
  • the concentric branch pipes 20, 21, 22 each consist of a branch inner pipe part 33 lying concentrically in a branch outer pipe part 34.
  • the branch inner pipe parts 33 are connected here via a respective coupling piece 29, 31 to the inner pipe segment 15 through a passage opening or connecting opening 69 in the peripheral wall of an outer pipe segment.
  • the branch outer pipe parts 34 are connected via the peripheral wall of a respective outer pipe segment 23, 24 to the outer pipe system 14. No devices are connected to the second coupling piece 30. In the shown embodiment this coupling piece functions solely for the purpose of connecting the first and second inner pipe segments 26, 27.
  • Figure 2 shows by way of example on enlarged scale a detail of the ventilation and/or flue gas discharge system 10 according to figure 1 , comprising the third tubular coupling piece 31.
  • the branch outer pipe part 34 engages fluid-tightly on the outer periphery of the outer pipe segment 24 by means of a saddle gasket 66 located around the passage opening or connecting opening 69.
  • the saddle gasket 69 has an upright slot-like edge 67 here for receiving an end of the branch outer pipe part 34 therein.
  • the branch outer pipe part 34 does not then protrude into the outer pipe segment 24, whereby removal of an inner pipe from the outer pipe is not obstructed, for instance during later renovation wherein the inner pipe system has to be replaced.
  • the branch outer pipe part 34 can be fixedly attached by screws 68 or the like by means of for instance tongues 70 attached on the edge of the connecting opening or passage opening 69 to the wall of the outer pipe segment 24 or formed therefrom (see figure 3 ).
  • combustion devices 16, 17, 18 are all shown mounted at the same height, it should be understood that these devices and their branch pipe parts 20, 21, 22 to the ventilation and/or flue gas discharge system 10 on the various floor levels 11, 12 can be located at different heights.
  • the end 35 of the inner pipe system 15 and/or the outer pipe system 14 can be connected to an outlet for discharging fluid which has accumulated in a pipe system, such as condensed water from flue gas to be discharged and/or combustion air to be supplied.
  • a pipe system such as condensed water from flue gas to be discharged and/or combustion air to be supplied.
  • the ventilation and/or flue gas discharge system 10 can also be installed in an existing flue gas discharge shaft of a building.
  • outer pipe system 14 is applied as combustion air supply channel in figure 1 , it should be appreciated that the outer pipe system 14 can also be used as ventilation channel, wherein one or more of the devices 16, 17, 18 are for instance air discharge devices or air grilles.
  • the first, second and third coupling pieces 29, 30, 31 may substantially each be of differing form. From the viewpoint of costs and convenience of mounting it is advantageous to couple the pipe segments to each other by means of a uniform coupling piece and to connect the various devices hereto via a uniform branch pipe part.
  • the coupling piece 31 has a cylindrical, tubular and elongate peripheral wall 36 which extends between an inlet end 37 and the outlet end 38 of the coupling piece 31.
  • the inlet end 37 and the outlet end 38 are suitable for receiving therein a pipe segment of the inner pipe system 15, such as respectively the third 28 and second pipe segment 27 as shown in figure 1 .
  • Attaching elements 42 spaced apart in tangential direction and protruding outward from the peripheral wall 36 are arranged close to the inlet end 37 of the coupling piece 31.
  • the coupling piece 31 is provided in similar manner at its outlet end 30 with attaching elements 43 protruding outward from the peripheral wall 36.
  • the coupling piece 31 is provided in its peripheral wall 36 with first and second opposite connecting openings 40, 41 for connection of a branch inner pipe 33 thereto.
  • the branch inner pipe 33 is connected via a self-positioning releasable screw coupling to the connecting opening 40.
  • the connecting opening 41 is closed using a cover 39, this as described in the non-prepublished Netherlands patent application 1041526 filed simultaneously in the name of applicant with the title: "Tubular coupling piece and branch pipe, particularly for use in a pipe system of a ventilation or flue gas discharge channel".
  • Designated with the reference numeral 45 is a semi-circular cam running all-around in tangential direction and protruding inward in radial direction in the outer pipe segment 24 on its inner peripheral wall 44 as embodiment of a coupling element co-acting with the locking element 46.
  • the cam 45 is formed in this embodiment as a cam-like protrusion which is directed inward out of the material of the outer pipe segment 24 and on which according to the invention different locking elements 46 located at a distance from each other in tangential direction engage in form-locking and force-locking manner.
  • These locking elements 46 are of approximately rectangular form in the shown embodiment, with a semi-circular recess 47 formed in a long side thereof and dimensioned in accordance with the cam 45 for receiving the peripheral cam 45 form-lockingly therein.
  • the semi-circular recess 47 runs in radial direction of the inner pipe segments 27, 28.
  • Each locking element 46 has two side surfaces 48, 49 located at a distance from each other and connected to each other via an upper 53 and lower short side 54.
  • the recess 47 for receiving the cam 45 therein is located on a front long side 51 of the locking element 46.
  • a resilient tongue 50 extends outward from the lower short side 54 of the locking element 46 in the direction away from the recess 47, in this case away from the front long side 51.
  • the other upper short side 53 of the locking element 46 is provided with a receiving opening 55 for receiving an attaching element 42, 43 between the side surfaces 48, 49 for coupling a locking element 46 to an attaching element 42, 43 for movement in radial direction of the inner pipe or the coupling piece 31.
  • the side surfaces 48, 49 are disposed at a distance relative to each other and the locking element 46 is formed from a resilient plastic material such that the locking element 46 can be placed clampingly onto an attaching element 42, 43. That is, an attaching element 42, 43 is coupled clamped between the side surfaces 48, 49 to the locking element 46.
  • the pivoting coupling of a locking element 46 to an attaching element 43 is shown in more detail in figure 3 .
  • the locking elements 46 are coupled releasably to an attaching element 42, 43.
  • the resilient tongue 50 achieves that the locking element 46 is pivotally resilient in axial and radial direction of the concentric pipe system in that the resilient tongue 50 pushes with its free end against the outer peripheral wall 36 of an inner pipe segment 26, 27, 28.
  • the resilient tongue 50 ensures that the locking elements 46 engage under resilient force in force-locking manner on the cams 45, whereby the inner pipe system 15 is locked in longitudinal direction to the outer pipe system 14 via the coupling pieces 29, 30, 31.
  • the force acting in radial direction on a locking element 46 for the purpose in mounted situation of firm engagement thereof on the cam 45 of an outer pipe is further increased in that the receiving opening 55 on the upper short side 53 of the locking element 46 connects to an open space 56 formed between the side surfaces 48, 49 from the rear long side 52.
  • This open space 56 as seen from the receiving opening 55, diverges outward at the end in wedge form 57.
  • the attaching elements 42, 43 taper at the end in wedge form 58 in the direction away from the peripheral wall 36 of the inner pipe or the coupling piece 31, this as illustrated in a cut-away detail drawing on enlarged scale of a locking element 46 in the situation mounted and coupled to an attaching element 43 in figure 4 .
  • the side walls 48, 49 of a locking element 46 are connected to each other via internal transverse ribs 59.
  • Figures 5A-F illustrate in stepwise manner the assembly and respective disassembly of, by way of example, an inner pipe or inner pipe segment 27 in an outer pipe or outer pipe segment 24.
  • the inner pipe segment 27 is attached here to a coupling piece 31 and the locking elements 46 are embodied as discussed with reference to figures 1 to 4 .
  • the full arrows indicate in each case the direction of movement of the inner pipe segment 27.
  • Figure 5A shows the inner pipe segment 27 with the coupling piece 31 and the locking elements 46 clamped to the attaching elements 43 thereof.
  • the cross-sectional dimensions of the inner pipe segment, the dimensions of the radially outward protruding locking elements 46 and the cross-sectional dimensions of the outer pipe segment 24 are adapted to each other such that the inner pipe segment 27 with the locking elements 46 fits closely into the outer pipe segment 24 from the first end 63 thereof.
  • the locking elements 46 are oriented inclining slightly downward in order to facilitate insertion of the inner pipe segment 27 and the locking elements 46 into the outer pipe segment 24 from the first end 63 thereof.
  • Figure 5B shows the inner pipe segment 27 received so far into the outer pipe segment 27 that the locking elements 46 lie with their recess 47 against the internal cam 45 of the outer pipe segment 27.
  • the locking elements 46 pivot and block at the position of the cam 45 because the cam 45 engages in the recesses 47 of the locking elements 46, as shown in figure 5C .
  • the attaching elements 43 have not yet been wholly received here from the receiving opening 55 in the open space 56 of the locking elements 46.
  • Figure 5D shows a fully mounted assembly 71 of an inner pipe segment and outer pipe segment of the pipe system, wherein the inner pipe segment 27 per with the coupling piece 31 is received wholly coaxially or concentrically in the outer pipe segment 24 and wherein the locking elements 46 are urged in radial direction firmly against and into engagement with the cam 45 by the wedge-shaped parts 57, 58 acting on each other of respectively a locking element 46 and an attaching element 43.
  • the inner pipe segment 27 is in this way locked firmly on the outer pipe segment 24 and locked against downward movement in longitudinal direction of the outer pipe segment 24, i.e. in the direction of the solid arrow.
  • Both pipe segments 24, 27 are dimensioned such that a connecting opening 40, 41 of the coupling piece 31 lies in mounted situation against a connecting opening 69 of the outer pipe segment 24 for the purpose of connecting a respective branch pipe part 22 as shown in figures 1 , 2 and 3 .
  • a further inner pipe segment such as the third inner pipe segment 28
  • the ventilation and/or flue gas discharge system 10 i.e. the concentric inner pipe system 15 and the outer pipe system 14, can in this way be constructed floor by floor or storey by storey.
  • the concentric ventilation and/or flue gas discharge system 10 can be built up segment by segment in the shaft from the roof of an apartment by lowering one mounted part of the ventilation and/or flue gas discharge system 10 at a time into the shaft and subsequently coupling the following part thereto, etc.
  • the inner pipe segment 27 can easily be removed again from the outer pipe segment 24 by moving the inner pipe segment 27 in the direction of the broken arrow in longitudinal direction, or axially, relative to the outer pipe segment 24 as shown in figure 5E and figure 5F .
  • FIG 6 illustrates a possible coupling of outer pipe segments 24, 25.
  • Each outer pipe segment 24, 25 has for this purpose a second end 64 with a slightly smaller diameter than the first end 63 thereof.
  • the second end 64 of the one outer pipe segment 25 can hereby be received in the other outer pipe segment 24 over a distance from the first end 63 thereof. See also figures 2 and 3 .
  • the first end 63 can of course alternatively be provided with a slightly larger diameter than the second end 64.
  • each outer pipe segment 25 in the outer pipe segment 24 is blocked by a clamping ring 61 which engages over the first end 63 of the outer pipe segment 24.
  • each outer pipe segment is provided on its second end 64 with a graduation scale 62 running over a length along the peripheral wall.
  • Figure 6 also shows that the outer pipe segment 24 is provided in its peripheral wall between the position where the cam 45, or the at least one cam-like element, is located and the first end 63 with at least one connecting opening and/or passage opening 69 for connection thereto and/or passage therethrough of branch pipes 33, 34 to be connected to the ventilation and/or flue gas discharge system 10.
  • the at least one connecting opening and/or passage opening 69 can also be provided in the peripheral wall of the outer pipe segment between the position where the cam 45, or the at least one cam-like element, is located and the second end 64.
  • branch pipe parts can each be connected separately at different locations.
  • peripheral cam 45 can consist of different individual cams which can lie spaced apart not only in tangential direction but for instance also in longitudinal direction of an outer pipe or outer pipe segment for the purpose of engaging locking elements likewise in spaced-apart distribution in for instance longitudinal direction and coupled to an inner pipe segment and/or coupling piece.
  • the locking elements can further also be coupled directly to an inner pipe segment or via for instance an annular element, such as a clamping ring or the like, to be coupled to the inner pipe.
  • Figure 7 shows an example of a clamping ring 60 provided with attaching elements 43 for coupling locking elements 46.
  • the clamping ring 60 is arranged here around the outer peripheral wall of an inner pipe segment 28. It will be appreciated that the clamping ring 60 can also be arranged around the outer peripheral wall of a coupling piece.
  • the locking engagement of a locking element and coupling element can, with the same advantage as described for the locking elements pivoting in axial, radial direction, also be achieved with locking elements mounted pivotally in tangential, radial direction of an inner pipe or outer pipe.
  • the attaching elements 42, 43 are mounted rotated through a quarter turn compared to the embodiment as shown in figure 2 and figure 3 and the locking elements 46 engage on a cam-like coupling element 45 formed in longitudinal direction of the outer pipe.
  • connection pieces 29, 30, 31 can have a length here in the range of 40-60 cm, preferably about 50 cm.
  • Usual for the inner pipe segments are diameters in the range of 80-250 mm, and the outer pipe segments have in practice diameters of 100-400 mm. Systems with diameter combinations of 100/160, 130/200, 160/250 and 200/350 mm are preferably supplied, wherein the smaller diameter relates in each case to the inner pipe and the larger diameter relates to the outer pipe.
  • the diameter of a coupling piece at a respective end 27, 28 is of course adapted here to the diameter of a pipe segment to be received therein.
  • the branch inner pipe parts have for instance a diameter in the range of 30-80 mm, preferably a diameter of 32 mm or 75 mm, adapted to standard connecting diameters for combustion devices.
  • the branch outer pipe parts can have diameters in the range of for instance 50-100 mm.
  • the coupling pieces, inner pipe segments, branch inner pipe parts and locking elements can be manufactured from, among other materials, polypropylene, PP, polybutylene terephthalate, PBT, or polyvinylidene fluoride, PVDF, with wall thicknesses of for instance 2-3 mm.
  • outer pipe segments and if desired the branch outer pipe parts are preferably manufactured from aluminium or stainless steel with a wall thickness of for instance 1-2 mm.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Claims (13)

  1. Lüftungs- und/oder Rauchgasableitungssystem (10), umfassend ein Innenrohr (15; 26, 27, 28) und ein Außenrohr (14; 23, 24, 25), die durch mindestens ein Verriegelungselement (46) verbindbar sind, wobei das oder jedes Verriegelungselement (46) an einem der Innenrohre oder Außenrohre angebracht ist und wobei das andere des Innenrohrs oder Außenrohrs mit mindestens einem Kupplungselement (45) versehen ist, das mit einem Verriegelungselement (46) zusammenwirkt, so dass im montierten Zustand des Innenrohrs in dem Außenrohr das oder jedes Verriegelungselement (46) in ein Kupplungselement (45) eingreift und das Innenrohr in Längsrichtung mit dem Außenrohr verriegelt ist, dadurch gekennzeichnet, dass das oder jedes Verriegelungselement (46) in mindestens einer tangentialen, radialen oder axialen Richtung eines Innenrohrs oder Außenrohrs schwenkbar gelagert ist.
  2. Lüftungs- und/oder Rauchgasableitungssystem (10) nach Anspruch 1, wobei das mindestens eine Verriegelungselement (46) federnd (50) an einem des Innenrohrs oder Außenrohrs in radialer Richtung davon angebracht ist und wobei das oder jedes Verriegelungselement (46) und ein damit zusammenwirkendes Kupplungselement (45) relativ zueinander so ausgebildet sind, dass ein Verriegelungselement (46) im montierten Zustand mit einem jeweiligen Kupplungselement (45) formschlüssig durch die federnde Wirkung auch kraftschlüssig in Eingriff steht.
  3. Lüftungs- und/oder Rauchgasableitungssystem (10) nach Anspruch 2, wobei das Außenrohr an seiner inneren Peripheriewand (44) mit mindestens einem Kupplungselement (45) in Form eines nockenartigen Elementes versehen ist, das nach innen in radialer Richtung vorsteht, und das Innenrohr an seiner äußeren Peripheriewand (36) mit mindestens einem daran gekoppelten federnden Verriegelungselement (46) versehen ist, insbesondere wobei das mindestens eine nockenartige Element ein in tangentialer Richtung umlaufender Nocken ist, insbesondere ein im Wesentlichen halbkreisförmiger nockenartiger Vorsprung, gebildet aus dem Material der Peripheriewand (44), wobei das Verriegelungselement (46) mit einer entsprechend dimensionierten halbkreisförmigen Aussparung (47) in radialer Richtung des Innenrohrs zur formschlüssigen Aufnahme des Peripherienockens versehen ist.
  4. Lüftungs- und/oder Rauchgasableitungssystem (10) nach einem oder mehr der vorhergehenden Ansprüche, wobei das Innenrohr ein rohrförmiges Kupplungsstück (29; 30; 31) aufweist und das mindestens eine Verriegelungselement (46) an das Kupplungsstück angebracht ist.
  5. Lüftungs- und/oder Rauchgasableitungssystem (10) nach einem oder mehr der vorhergehenden Ansprüche, umfassend ein Ringelement, beispielsweise einen Klemmring, der an der äußeren Peripheriewand (36) des Innenrohrs oder an der äußeren Peripheriewand eines rohrförmigen Kupplungsstücks (29; 30; 31) des Innenrohrs befestigt werden kann, wobei das mindestens eine Verriegelungselement (46) an dem Ringelement angebracht ist.
  6. Lüftungs- und/oder Rauchgasableitungssystem (10) nach einem oder mehr der vorhergehenden Ansprüche, wobei das mindestens eine Verriegelungselement (46) lösbar befestigt ist.
  7. Lüftungs- und/oder Rauchgasableitungssystem (10) nach einem oder mehr der vorhergehenden Ansprüche, umfassend mindestens zwei in tangentialer Richtung voneinander in einem Abstand angeordnete Verriegelungselemente (46).
  8. Lüftungs- und/oder Rauchgasableitungssystem (10) nach einem oder mehr der vorhergehenden Ansprüche, wobei ein Verriegelungselement (46) eine annähernd rechteckige Form mit zwei voneinander in einem Abstand befindlichen Seitenflächen (48, 49) mit einer Aussparung (47) an einer langen Seite (51) davon zum Eingriff eines nockenartigen Kupplungselements (45) darin und mit einer federnden Zunge (50), die in Richtung weg von der Aussparung (47) nach außen vorsteht, aufweist.
  9. Lüftungs- und/oder Rauchgasableitungssystem (10) nach Anspruch 8, wobei die federnde Zunge (50) von einer kurzen Seite (54) des Verriegelungselements (46) nach außen vorsteht und wobei eine weitere kurze Seite (53) des Verriegelungselements (46) mit einer Aufnahmeöffnung (55) versehen ist, um ein Befestigungselement (42; 43) eines des Innenrohrs oder Außenrohrs darin klemmend zwischen den Seitenflächen (48, 49) zur Befestigung des Verriegelungselements (46) in axialer Richtung beweglich zu einem Befestigungselement (42; 43) aufzunehmen, insbesondere wobei das Befestigungselement (42; 43) einen Teil eines rohrförmigen Kupplungsstücks (29; 30; 31) des Innenrohrs bildet oder einen Teil eines Ringelements bildet, wie zum Beispiel ein Klemmring, der an der äußeren Peripheriewand des Innenrohrs oder einem Kupplungsstück befestigt werden kann.
  10. Lüftungs- und/oder Rauchgasableitungssystem (10) nach Anspruch 9, wobei die Aufnahmeöffnung (55) an der anderen kurzen Seite (53) des Verriegelungselements (46) mit einem offenen Raum (56) verbunden ist, der zwischen den Seitenflächen (48, 49) von der anderen langen Seite (52) gebildet ist, und der, von der Aufnahmeöffnung (55) aus gesehen, am Ende (57) nach außen abweicht und wobei sich das Befestigungselement (42; 43) am Ende (58) in Richtung weg von der äußeren Peripheriewand (36) des Innenrohrs verjüngt, so dass, wenn das Befestigungselement (42; 43) in dem offenen Raum (56) des Verriegelungselements (46) in Längsrichtung von der Aufnahmeöffnung (55) aufgenommen wird, sich das Verriegelungselement (46) radial nach außen bewegt.
  11. Lüftungs- und/oder Rauchgasableitungssystem (10) nach einem oder mehr der vorhergehenden Ansprüche, umfassend mindestens zwei in Längsrichtung verbundene Baugruppen aus einem gekoppelten Innenrohr (15) und einem Außenrohr (14), insbesondere wobei das Innenrohr (15) Innenrohrsegmente (26, 27, 28) umfasst, die durch mindestens ein Kupplungsstück (30; 31) gekoppelt sind, und wobei das Außenrohr (14) Außenrohrsegmente (23, 24, 25) umfasst, die in Längsrichtung gekoppelt sind, wobei jedes Außenrohrsegment (23, 24, 25) an einem zweiten Ende (64) einen kleineren Durchmesser als an einem ersten Ende (63) davon aufweist, um mit dem zweiten Ende (64) ein Außenrohrsegment (25) am ersten Ende (63) eines anderen Außenrohrsegments (24) aufzunehmen.
  12. Lüftungs- und/oder Rauchgasableitungssystem (10) nach Anspruch 11, umfassend eine Einstellskala (62), die an der äußeren Peripherie eines Außenrohrsegments (25) vom zweiten Ende (64) in Richtung des ersten Endes (63) verläuft.
  13. Lüftungs- und/oder Rauchgasableitungssystem (10) nach einem oder mehr der vorhergehenden Ansprüche, wobei ein Außenrohr (23, 24) in seiner Peripheriewand zwischen der Position vorgesehen ist, an der sich das mindestens eine Verriegelungselement (46) befindet oder Kopplungselement (45) angeordnet ist, und das erste Ende (63) oder das zweite Ende (64) mit mindestens einer Verbindungsöffnung und/oder Durchgangsöffnung (69) zur Verbindung damit und/oder zum Durchgang dadurch eines Abzweig-Außenrohrs (34), das mit dem Lüftungs- und/oder Rauchgasableitungssystem (10) verbunden werden soll, insbesondere wobei ein Abzweig-Außenrohr (34), das mit der Verbindungsöffnung (69) an der äußeren Peripherie eines Außenrohrs (23, 24) verbunden werden soll, an der äußeren Peripherie des Außenrohres (23, 24) mittels einer Satteldichtung (66) fluiddicht im Eingriff steht, wobei die Satteldichtung (66) einen aufrechten, schlitzartigen Rand zur Aufnahme eines Endes des Abzweig-Außenrohrs (34) aufweist.
EP16194139.8A 2015-10-16 2016-10-17 Belüftungs- und/oder rauchgas-abführsystem mit konzentrischen innen- und aussenrohren Not-in-force EP3156725B1 (de)

Applications Claiming Priority (1)

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NL1041533A NL1041533B1 (nl) 2015-10-16 2015-10-16 Ventilatie- en/of rookgasafvoersysteem omvattende een onderling gekoppelde concentrische binnenbuis en buitenbuis, een buitenbuissegment en een vergrendelelement.

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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
NL2020370B1 (en) * 2018-02-02 2019-08-12 M & G Group Europe B V Chimney pipe joint for sustainable chimney systems

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GB287335A (en) * 1927-04-14 1928-03-22 Harold Newsom Davis Improvements relating to gas heated radiators, cookers, boilers, geysers and other like apparatus
US4781402A (en) * 1986-12-22 1988-11-01 Metal-Fab, Inc. Metal chimney assembly
US6634352B2 (en) * 2001-01-17 2003-10-21 American Metal Products Company Direct venting vent pipe
US6702338B2 (en) * 2002-05-09 2004-03-09 Heat-Fab, Inc. Flue gas conduit joining connection
ITPD20050360A1 (it) * 2005-12-07 2007-06-08 Apros Srl Nuova canna fumaria con camicia di rivestimento e relativi distanziatori
DE102010018583B4 (de) * 2010-04-27 2014-07-24 Dieter Bächle Fixiervorrichtung, Abgasrohrstrang mit Fixiervorrichtung sowie Verwendung

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