EP1561996B1 - Dispositif de fermeture pour un tuyau conduisant un gas - Google Patents

Dispositif de fermeture pour un tuyau conduisant un gas Download PDF

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Publication number
EP1561996B1
EP1561996B1 EP20040026555 EP04026555A EP1561996B1 EP 1561996 B1 EP1561996 B1 EP 1561996B1 EP 20040026555 EP20040026555 EP 20040026555 EP 04026555 A EP04026555 A EP 04026555A EP 1561996 B1 EP1561996 B1 EP 1561996B1
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EP
European Patent Office
Prior art keywords
shut
flap
sealing material
tubular section
sealing
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.)
Active
Application number
EP20040026555
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German (de)
English (en)
Other versions
EP1561996A1 (fr
Inventor
Pabst Manfred
Thomann Hans-Peter
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.)
Kutzner and Weber GmbH
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Kutzner and Weber GmbH
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Filing date
Publication date
Application filed by Kutzner and Weber GmbH filed Critical Kutzner and Weber GmbH
Publication of EP1561996A1 publication Critical patent/EP1561996A1/fr
Application granted granted Critical
Publication of EP1561996B1 publication Critical patent/EP1561996B1/fr
Active legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L13/00—Construction of valves or dampers for controlling air supply or draught
    • F23L13/02—Construction of valves or dampers for controlling air supply or draught pivoted about a single axis but having not other movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J11/00—Devices for conducting smoke or fumes, e.g. flues 
    • F23J11/12—Smoke conduit systems for factories or large buildings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L11/00—Arrangements of valves or dampers after the fire
    • F23L11/005—Arrangements of valves or dampers after the fire for closing the flue during interruption of burner function

Definitions

  • the present invention relates to a shut-off device for a gas-conducting pipe, in particular for an exhaust pipe of a fireplace, comprising a housed in a pipe section of the pipe and about a pipe axis substantially orthogonal to the pipe axis axis between a shut-off and an open position pivotable shut-off valve made of sheet metal, in particular sheet metal which is at least approximately orthogonal to the pipe section axis in the shut-off position and sealingly cooperates at its peripheral seam with a surface region on the inner circumference of the pipe section.
  • shut-off device is from the DE 196 03 615 A1 known.
  • This shut-off device has a shut-off valve, which is arranged in an exhaust pipe, which connects a fireplace with a fireplace.
  • the butterfly valve is used to close and open the exhaust pipe.
  • it is coupled to a motor drive, by means of which it is pivotable between its shut-off position and its open position.
  • the butterfly valve should be in its open position so that the exhaust gases generated by the fireplace can be drawn off into the chimney. If the fireplace is not in operation, the shut-off damper should normally be closed, inter alia to prevent cooling of the room where the fireplace is installed.
  • shut-off valves can be prevented in the operation of several fireplaces on the same chimney that exhaust gases of a fireplace in operation may enter the room of an out of service fireplace.
  • a sealing profile on which the butterfly valve sealingly abuts in its shut-off position is fixed to the inner peripheral surface of the tube, a sealing profile on which the butterfly valve sealingly abuts in its shut-off position.
  • shut-off device is from the DE8523605U known.
  • This shut-off device relates to a closure tube for a chimney fresh air supply, in which a centrally stepped flap is rotatably mounted about a central axis in a pipe section and is fixedly connected to a protruding from the pipe section rod.
  • the pipe section forms inside a circular encircling ledge on which one half of the flap rests from one side and the other half of the flap from the other side.
  • the EP1462722A2 describes a draft regulator with a control flap as a pressure difference-dependent effective closure element of a secondary air inlet opening of an exhaust pipe.
  • the control flap is pivotably mounted on a frame surrounding the secondary air inlet opening between a closed position and occluding open position, so that it can change pressure-dependent in the closed or open position and can strike at the transition to the closed position with an edge overlap region on the peripheral edge of the secondary air inlet opening.
  • a flue gas flap assembly which has a movable against a conical sealing seat rotary flap wing, which is made of an elastic material outer edge seal in extension of the rotary valve wing between two attached, attached to the rotary valve flats and placed against the sealing seat.
  • An air intake pipe of a boiler plant is out of DE3617510A known, which has a stored throttle.
  • the throttle valve is pivotally mounted from a transversely extending to the suction line closed position in an open position and they know at its edge a relative to the air intake hermetically sealing, two-piece soft seal.
  • An object of the present invention is to provide a shut-off device of the type mentioned above with good sealing effect, which can be realized by simple means and works reliably and permanently.
  • the butterfly valve is prepared on its peripheral seam with an elastomeric sealing material fixed thereto and forming a seal arrangement.
  • the butterfly valve is perforated at its perennialsssaum with holes which are interspersed with sealing material.
  • the sealing material may in particular contain silicone, EPDM and / or PUDF and be applied by means of injection molding technology.
  • the shape of the seal assembly can be designed in a suitable and simple manner and adapted to the shape of the butterfly valve and the pipe section. For example, may be provided to increase the sealing effect sealing lips, which create in the shut-off position, in particular on a radially projecting from the inner circumference of the pipe section inwardly flange, which serves as an abutment for the shut-off valve. The shape of this flange must therefore not be subject to great precision.
  • the Fig. 1 shows an example of the use of the shut-off device according to the invention in the exhaust gas discharge system of a modern heating system.
  • Floor shelves 10a and 10b of a building are shown schematically.
  • a Abgasabfuelweg 12 passes through the floor floors 10a, 10b.
  • the Abgasab2020weg 12 is designed here as a classic fireplace.
  • In the individual floors of the building is connected to the fireplace 12 each have a fireplace 14, 16 and 18 respectively.
  • Each firebox 14, 16 and 18 may be associated with a respective fan (not shown) which expels the exhaust gases in the direction of the chimney 12.
  • the fireplaces 14, 16 and 18 can be identical. In the following, the connection of the fireplace 14 to the chimney 12 will be further described by way of example.
  • the fireplace 14 is connected via an exhaust pipe 20 to the chimney 12.
  • a shut-off valve 22 is provided, which is pivotable about an orthogonal to the exhaust pipe axis pivot axis between the flow cross-section of the tube 20 occlusive shut-off position and the flow path releasing open position.
  • a communication path for exhaust gases between the hearth 14 and the chimney 12 can thus be made or broken as needed.
  • a motor 26 is provided, which is externally mounted on the tube 20 and has a sealingly guided through the pipe wall motor shaft on which the butterfly valve is held. In the Fig. 1 the butterfly valve 22 is shown in its open position.
  • the Fig. 2 schematically shows a first embodiment of the shut-off device according to the invention in a longitudinal sectional view of the exhaust pipe 20.
  • the butterfly valve 22 is arranged in a pipe section 28.
  • the butterfly valve 22 is here in its shut-off position.
  • the pipe section 28 and the butterfly valve 22 are formed from a metal sheet, advantageously from a relatively thin stainless steel sheet.
  • a radially inwardly extending flange 29 which is formed by narrowing the diameter of the pipe section 28.
  • the constriction is a readily producible constriction of the tube.
  • the butterfly valve 22 is disc-shaped and bent at two folds 64 and 66. As a result, a first flap region 32 and a second flap region 34 are formed, which are parallel and, with reference to the axis of the tube section 28 in FIG Fig. 2 - axially offset from each other.
  • the butterfly valve 22 has between the two fold lines 64, 66 a slightly oblique flap area 62 which connects the two flap areas 32, 34 and bridges the axial displacement of the two flap areas 32, 34.
  • a short shaft extension 42 is attached to the butterfly valve 22, which projects beyond an opening from the pipe section 28 and the shaft of the motor 26 is associated.
  • the joint between the pipe section 28 and the shaft extension 42 in the region of this opening is sealed, so that no exhaust gases can escape.
  • the shaft extension 42 defines for the butterfly valve 22 the orthogonal to the pipe axis axis extending pivot axis about which the butterfly valve 22 can be pivoted by about 90 ° between the shut-off and the open position.
  • the two flap regions 32, 34 are each coated on the peripheral edge with an elastomeric sealing material 36 made of silicone, EPDM or PUDF.
  • This sealing material 36 is applied at the peripheral edge in each case on both flap surface sides of the flap regions 32, 34 and on the narrow side on the flap periphery, preferably in an injection molding process. Due to the bends of the butterfly valve 22 at the folds 64, 66, the sealing material 36 on the two flap areas 32, 34 touch the flange 29 in the shut-off position of the butterfly valve 22 from opposite axial sides.
  • the flange 29 serves as a seal counter stop for the sealing material 36 of the two flap areas 32, 34. The joints between the flange 29 and the sealing material 36 are well sealed with the shut-off valve 22 closed.
  • the Fig. 3 shows the shut-off device according to the first embodiment after Fig. 2 in its open position.
  • the shut-off valve 22 is pivoted together with the sealing material 36 with respect to the shut-off position by about 90 ° about the pivot axis. Exhaust gases can pass the shut-off device.
  • the shut-off device is shown with a plan view of the closed butterfly valve in the axial direction of the pipe section 28.
  • a holder 60 for the motor 26 and possibly a transmission is mounted on the pipe section 28.
  • the butterfly valve 22 is mounted on one side, by means of the shaft extension 42, at a first bearing point 68 on the pipe section 28 and at a second bearing point 70 on the holder 60.
  • Due to the staggered arrangement of the flap regions 32, 34, the sealing material 36 is partially covered by the flange 29 at the first flap region 32 located here below.
  • the edge of the sealing material 36 on the narrow side of the flap circumference on the flap region 32 is indicated as a semicircular arc.
  • the flange 29 in turn is partially hidden by the second flap region 34 located up here and the sealing material 36 applied to it.
  • the course of the concealed flange 29 on the upper inner peripheral surface of the pipe section 28 is indicated by a dashed semicircular arc.
  • the Fig. 5 schematically shows a second embodiment of the shut-off device according to the invention.
  • the butterfly valve 22 is in its shut-off position.
  • a cut pipe section 28 of the exhaust pipe 20 is shown in its axial flow direction from the hearth 14 to the chimney 12.
  • the butterfly valve 22 has a circular cross-section and a disc shape which is delimited by two opposite flap surface sides and a narrow side 50 extending perpendicular to the two flap surface sides on the flap periphery.
  • the butterfly valve 22 is orthogonal to the axis of the pipe section 28.
  • Die Fig. 2 shows the top view of a first flap surface side 52.
  • the dashed semicircle on the left side of the butterfly valve 22 indicates its edge at the transition of the first flap surface side 52 to the narrow side 50 at.
  • the butterfly valve 22 has a shaft 40 extending orthogonally to the pipe section axis, which defines a pivot axis 38.
  • the shaft 40 divides the butterfly valve 22 into the first flap region 32 and the second flap region 34 and is mounted at its two ends in the tube section 28.
  • the shaft extension 42 is mounted, which protrudes through an opening from the pipe section 28 and opens into the adjustment means 26.
  • the joint between the pipe section 28 and the shaft extension 42 in the region of this opening is sealed, so that no exhaust gases can escape.
  • the adjusting means 26 serves for pivoting the butterfly valve 22 about the pivot axis 38.
  • the butterfly valve 22 is provided with elastomeric sealing material 36 at its peripheral edge.
  • the sealing material covers on the flap circumference the narrow side 50 and in each case a narrow strip of the edge regions of the two flap surface sides 52, 54 and is fastened to the peripheral seam.
  • the pipe section 28 has an inner circumferential surface 56, on which a first inwardly extending first flange portion 30 and second flange portion 31 (FIGS. Fig. 6 ) are formed.
  • the flange portions 30, 31 may be formed for example by local narrowing of the diameter of the pipe section or by a Flanscheinsatz of metal or possibly of elastomeric sealing material.
  • the butterfly valve 22 may fit snugly against the two flange portions 30, 31, these may be offset by the width of the butterfly valve 22 and the width of the attached to the flap surface sides 52, 54 sealing material 36 axially against each other.
  • the sealing material 36 is sufficient in the present Embodiment on the flap surface sides 52, 54 radially further inward than the two flange portions 30, 31.
  • Fig. 6 is the cut pipe section 28 of the exhaust pipe 20 as viewed in the axial direction of the chimney 12 to the fireplace 14 shown.
  • the butterfly valve 22 is in its shut-off position.
  • the Fig. 6 shows the top view of the second flap surface side 54.
  • the dashed semicircle on the left side of the butterfly valve 22 indicates its edge at the transition of the second flap surface side 54 to the narrow side 50 at the flap circumference.
  • On the right side of the second flange portion 31 is shown.
  • the Fig. 7 shows the shut-off device according to the second embodiment in its open position.
  • the butterfly valve 22 is opposite to its position according to the Fig. 5 swiveled by 90 °.
  • the exhaust gases generated by the in-service fireplace 14 can be drawn off into the chimney 12 through the pipe.
  • the narrow side 50 on the flap circumference covered by the sealing material 36 and the edges of the transitions to the flap surface sides 52, 54 are indicated by dashed lines.
  • the Fig. 8 shows the top view of the first flap surface side 52 of the butterfly valve 22 without applied sealing material 36.
  • the butterfly valve 22 holes 44 are introduced into the sheet material, which serve to anchor the sealing material 36.
  • the advantageously injection-molded sealing material 36 in particular passes completely through these holes 44 and advantageously hangs together integrally with the sealing material 36 applied to the peripheral seam of the flap surface sides 52, 54. As a result, a secure attachment of the sealing material 36 can be achieved.
  • the sealing material 36 additionally has a first sealing lip 46 and a second sealing lip 48, which has an additional sealing effect guarantee.
  • the first sealing lip 46 extends on the second flap region 34, starting from the sealing material 36 in the edge region of the transition from the narrow side 50 at the flap periphery to the flap surface side 54 obliquely to the present on the flap surface side 54 sealing material 36.
  • the second sealing lip 48 extends on the first flap area 32, starting from the sealing material 36 in the edge region of the transition from the narrow side 50 on the flap circumference to the flap surface side 52 obliquely to the present on the flap surface side 52 sealing material 36.
  • the sealing lips 46, 48 In the shut-off position of the butterfly valve 22 are the sealing lips 46, 48 with opposite axial sides of the flange 30, 31 in touch.
  • the first sealing lip 46 touches the side of the flange region 31 pointing in the direction of the hearth 14 and the second sealing lip 48 contacts the side of the flange region 30 pointing in the direction of the chimney 12.
  • the illustrated dimensions of the shut-off flap 22 are not to scale.
  • the lips 46, 48 may be realized in various alternative forms and configurations.
  • FIG. 2 to 4 illustrated embodiment may integrally molded from the elastomeric sealing material 36 formed sealing lips.
  • a shut-off device according to the invention is not limited to use in exhaust systems. It can e.g. Alternatively, find in a ventilation system or a venting system and the like. Use.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Architecture (AREA)
  • Lift Valve (AREA)
  • Exhaust Silencers (AREA)

Claims (6)

  1. Dispositif de fermeture pour un tuyau conduisant un gaz, en particulier un conduit de fumée (20) d'un foyer (14), comprenant un clapet de fermeture (22) en tôle, en particulier en tôle métallique, logé dans un tronçon (28) du conduit et pivotant autour d'un axe de pivotement (38) essentiellement perpendiculaire à l'axe du tronçon de conduit entre une position de fermeture et une position d'ouverture, lequel est dans la position de fermeture au moins approximativement perpendiculaire à l'axe du tronçon de conduit et coopère à sa bordure périphérique avec une zone de surface du pourtour intérieur (56) du tronçon de conduit (28) pour faire étanchéité, le clapet de fermeture (22) étant préparé à sa bordure périphérique avec un matériau d'étanchéité élastomère (36) qui y est fixé et forme un dispositif d'étanchéité, caractérisé en ce que le matériau de la tôle du clapet de fermeture (22) est perforé à sa bordure périphérique avec des trous d'ancrage (44) pour le matériau d'étanchéité élastomère (36), les perforations étant garnies de manière assurant l'étanchéité avec le matériau d'étanchéité élastomère (36) appliqué de préférence par un procédé de moulage par injection (36).
  2. Dispositif de fermeture suivant la revendication 1, caractérisé en ce que le matériau d'étanchéité (36) s'étend à la périphérie du clapet sur le petit côté (50) du clapet de fermeture (22) d'un côté de la surface du clapet (52) à l'autre côté de la surface du clapet (54).
  3. Dispositif de fermeture suivant la revendication 1 ou 2, caractérisé en ce que le matériau d'étanchéité (36) présent au moins dans une zone de la bordure périphérique du clapet de fermeture (22) sur les côtés de la surface du clapet se faisant face (52, 54) est en relation intégrale avec le matériau d'étanchéité (36) garnissant les trous d'ancrage respectifs (44).
  4. Dispositif de fermeture suivant l'une des revendications précédentes, caractérisé en ce que le dispositif d'étanchéité présente au moins une lèvre d'étanchéité (46, 48) qui fait contact dans la position de fermeture du clapet de fermeture (22) avec la zone de surface au pourtour intérieur (56) du tronçon de conduit (28).
  5. Dispositif de fermeture suivant l'une des revendications précédentes, caractérisé en ce que le tronçon de conduit (28) présente une bride (29, 30, 31) dépassant radialement vers l'intérieur à son pourtour intérieur (56), formée en particulier par un rétrécissement local du diamètre du tronçon de conduit (28), avec laquelle le dispositif d'étanchéité est en contact d'étanchéité dans la position de fermeture du clapet de fermeture (22).
  6. Dispositif de fermeture suivant la revendication 5, caractérisé en ce que l'axe de pivotement (38) du clapet de fermeture (22) et la bride (29, 30, 31) s'étendent au moins approximativement perpendiculairement à l'axe du tronçon de conduit (28) et en ce que l'axe de pivotement (38) divise le clapet de fermeture (22) en deux zones de clapet (32, 34), dont chacune présente une lèvre d'étanchéité (46, 48) du dispositif d'étanchéité et qui sont, dans la position de fermeture du clapet de fermeture (22), en contact avec des côtés axiaux opposés de la bride (29, 30, 31) à l'aide de la lèvre d'étanchéité (46, 48) respective.
EP20040026555 2004-02-09 2004-11-09 Dispositif de fermeture pour un tuyau conduisant un gas Active EP1561996B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200420001919 DE202004001919U1 (de) 2004-02-09 2004-02-09 Absperrvorrichtung für ein Gas führendes Rohr
DE202004001919U 2004-02-09

Publications (2)

Publication Number Publication Date
EP1561996A1 EP1561996A1 (fr) 2005-08-10
EP1561996B1 true EP1561996B1 (fr) 2012-10-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040026555 Active EP1561996B1 (fr) 2004-02-09 2004-11-09 Dispositif de fermeture pour un tuyau conduisant un gas

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EP (1) EP1561996B1 (fr)
DE (1) DE202004001919U1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007062813B4 (de) * 2007-12-21 2009-11-12 Khs Ag Trennwand, insbesondere zur Einhausung von Verpackungsmaschinen für Lebensmittel
DE102011083127A1 (de) 2011-09-21 2013-03-21 Kutzner + Weber Gmbh Absperrvorrichtung für ein Rohr
KR102148410B1 (ko) * 2018-07-06 2020-08-26 포레시아코리아 유한회사 차량 배기 시스템용 밸브 조립체

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8523605U1 (de) 1985-08-16 1985-10-24 Max Blank GmbH, 8821 Westheim Verschlußrohr für eine Kamin-Frischluftzufuhr
DE3617510A1 (de) 1985-10-19 1987-04-23 Horst Linz Kesselanlage mit einer luft-drosselklappe
DE4015584A1 (de) 1990-05-15 1991-11-21 Stober & Morlock Rauchgasklappenanordnung
DE19603615A1 (de) * 1996-02-01 1997-08-07 Kutzner & Weber Gmbh Abgasabführsystem für gebäudeinstallierte Feuerstätten
DE19918128A1 (de) * 1999-04-21 2000-10-26 Dieter Moellmann Absperrklappe für Rohrleitungen und Verfahren zur Herstellung derselben
DE10102398A1 (de) * 2001-01-19 2002-07-25 Zimmer Ag Verschlusskörper zum Verschließen einer Rohrleitung und Verfahren hierzu
DE10132194C1 (de) * 2001-07-03 2002-07-25 Warex Valve Gmbh Absperrorgan in einer Rohrleitung für Medien mit hohen Temperaturen
DE20304825U1 (de) 2003-03-25 2004-08-05 Kutzner + Weber Gmbh & Co. Kg Zugregler

Also Published As

Publication number Publication date
DE202004001919U1 (de) 2005-06-23
EP1561996A1 (fr) 2005-08-10

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