EP1302220B1 - Damper, in particular fire damper - Google Patents

Damper, in particular fire damper Download PDF

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Publication number
EP1302220B1
EP1302220B1 EP02017822A EP02017822A EP1302220B1 EP 1302220 B1 EP1302220 B1 EP 1302220B1 EP 02017822 A EP02017822 A EP 02017822A EP 02017822 A EP02017822 A EP 02017822A EP 1302220 B1 EP1302220 B1 EP 1302220B1
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EP
European Patent Office
Prior art keywords
housing
shut
flap according
flap
disc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02017822A
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German (de)
French (fr)
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EP1302220A1 (en
Inventor
Udo Bunge
Heinz Dammers
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Gebrueder Trox GmbH
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Gebrueder Trox GmbH
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Publication of EP1302220A1 publication Critical patent/EP1302220A1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/12—Hinged dampers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1406—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
    • F24F11/35—Responding to malfunctions or emergencies to fire, excessive heat or smoke by closing air passages

Definitions

  • the invention relates to a flap, in particular fire damper, with a Absperrlamelle which is pivotally mounted in a square, in particular quadrangular housing and whose edges are sealed in the closed position via a seal relative to the housing, wherein the seal under the action of the Absperrlamelle pivoting actuating forces is deformable.
  • a flap is known from DE 201 02 300 U.
  • flaps are used, inter alia, as fire dampers. They must also fulfill a smoke protection function in accordance with the statutory provisions; in particular, they should prevent the spread of smoke during the smoldering fire phase of a fire event.
  • a circumferential stop seal for Absperrlamelle is provided in the housing of the fire damper. This stop seal is located in a receptacle which is fastened on the inside to the housing. If the shut-off blade is rotatably mounted on a centrally arranged in the housing pivot shaft, the Absperrlamelle is divided into two sub-areas of the pivot shaft.
  • both seals are offset from one another and seen in the flow direction on each side of the pivot shaft are arranged.
  • the shut-off blade thus lies with the one partial area on one side and with the other partial area on the other side of the respective stop gasket.
  • the object of the invention is therefore to provide a flap for angular housing, which influences the flow behavior less in the open position.
  • the housing is rounded at least in the corner areas to be sealed in the closed position relative to the shut-off blade and the shut-off blade is correspondingly rounded in the corner areas with the lip seal arranged thereon. Due to the rounded corner regions of the housing, it is possible that a lip seal can be provided for sealing.
  • the lip seal may be glued or screwed to the shut-off blade, for example. In the assembled state, the lip seal protrudes so far beyond the circumference of the shut-off blade, that the gap remaining between the shut-off blade and the housing is completely sealed in the closed position of the shut-off blade becomes.
  • the lip seal When using the lip seal in a square housing so far the lip seal is in the open position of Absperrlamelle only on the two side walls of the housing in which the pivot shaft is mounted on. Only after closing is the lip seal on all sides in contact with the housing. Since the lip seal protrudes more over the circumference of the Absperrlamelle than the thickness of the sealed between housing and Absperrlamelle gap, it is deformed, thus sealing the gap safely.
  • the rounded corner regions of the housing can be formed by molded parts which are approximately quarter-circle-shaped and have their concave surface facing the center of the housing. These moldings can be fixed, for example, by gluing in the angular housing. It is obvious that, when used in a quadrangular housing, the molded parts are approximately quarter-circle-shaped and a total of four molded parts must be provided in the region of the shut-off blade in the four corner regions of the housing.
  • the mold parts may be formed as part of a housing adapted to the interior and inserted into the housing and there fixable frame construction.
  • the mold parts can be fixed outside the housing to the frame construction. Following this, the then provided with the moldings frame construction is inserted into the housing and fixed there.
  • the rounded portions are an integral part of the housing.
  • the housing may consist of attachable by means of attachable to each other and mutually fixable side walls, each side wall along its longitudinal edges is formed such that in the assembled state of the side walls in the inner corner regions each rounding are present.
  • the fixation of the individual side walls against each other can be done for example by means of screws.
  • the housing may be constructed for example of four side walls or two L-shaped side walls.
  • the roundings intended in the housing may be provided, for example, only on a longitudinal edge of a side wall, so that after assembly, the intended rounded portions are provided in each inner corner portion of the housing.
  • At least one rounded corner region may consist of metal or of a fire-resistant material, in particular chamotte. But there are also other materials conceivable.
  • the rounded configuration of the housing in the corner areas can be provided only in the area of the shut-off lamella and the rounded corner areas on and / or obliquely formed downstream.
  • a preferably circumferential groove for receiving the lip seal can be provided in or at the region of the edge of the Absperrlamelle.
  • the lip seal may be additionally fixed in the groove, for example by screws.
  • the Absperrlamelle facing inner edge of the lip seal is tapered in the region of the rounded corners and the groove has corresponding bevels in the corners. Due to the oblique formation of lip seal and groove self-alignment takes place after the introduction of the lip seal in the groove in these areas, so that the lip seal is precisely matched in the corner areas on the Absperrlamelle one hand and the housing on the other hand and possibly only partially in the groove must be fixed.
  • the lip seal may be made of a synthetic rubber, preferably neoprene.
  • the housing may have a perforation in the area to be sealed in the closed position relative to the shut-off blade, in particular a perforation consisting of a plurality of rows of slots offset in the circumferential direction, and an intumescent material may be provided on the inside at least in the region of the perforation , Due to the perforation, the heat transfer in the area of the shut-off blade in the event of fire is made considerably more difficult, since the perforation causes the heat to be directed only over the remaining regions of the housing to the source of the fire Side of Absperrlamelle can be transferred. With appropriate heat load also expands the intumescent material, such.
  • the intumescent material passes through the perforation and seals the outside of the case from masonry.
  • the region containing the perforation is limited to increase the stability of two circumferential, preferably inwardly directed beads.
  • the housing can also be designed as a pipe section.
  • the illustrated flap has a housing 1 with connecting flanges 2 on both sides.
  • the illustrated housing 1 may also be a pipe section.
  • a Absperrlamelle 4 is pivotally mounted on a centrally arranged pivot shaft 3.
  • the Absperrlamelle 4 can be moved manually via a lever 5 from the open position shown in FIGS. 1 and 2 in the closed position shown in Fig. 3. It is not shown that can act on the pivot shaft 3 additional adjusting elements, for example, cause an automatic closure in an emergency.
  • a lip seal 8 is provided in a likewise circumferential groove 7, which projects beyond the edge 6 and the circumference of Absperrlamelle 4 on all sides.
  • the lip seal 8 protrudes further beyond the edge 6 of the Absperrlamelle 4 addition than the sealed between the Absperrlamelle 4 and the housing 1 circumferential gap is wide.
  • the lip seal 8 is folded in the open position only on the two opposite sides, which are in communication with the housing 1, folded. Against this, the lip seal 8 is still undeformed in the region of the on-and-off edge 6. Only after pivoting the Absperrlamelle 4 in the direction of arrow 9 in the closed position, the lip seal 8 comes in the area of the on and downstream Edge 6 of Absperrlamelle 4 with the housing 1 in contact and is more and more deformed or folded.
  • the corner regions 10 of the housing 1 in the interior of a quarter-circle with its concave surface the center of the housing 1 facing mold parts 11 are provided, so that the corner regions 10 are rounded.
  • the Absperrlamelle 4 with the lip seal 8 arranged thereon is rounded in accordance with the corner areas. Due to the rounded corner regions 10 and the correspondingly adapted shut-off blade 4, it is possible to provide a lip seal 8 even in the case of the flaps shown in FIGS. 1 to 5.
  • connection flanges 12 are provided in the connection flanges, grab by the fastening means, not shown.
  • FIG. 3 While molded parts 11 are provided in the flap shown in FIGS. 1 and 2, which have front surfaces oriented perpendicular to the housing 1 on the outflow side, an embodiment is shown in FIG. 3 in which the upstream side 13 and the outflow side 14 are inclined relative to Housing 1 are aligned to improve the flow behavior in the field of Absperrlamelle 4.
  • the Absperrlamelle 4 is in its closed position. It can be clearly seen that in this position, the lip seal 8 is in close planar contact with the molded part 11.
  • FIG. 4 shows an embodiment in which the housing 1 is composed of a total of four side walls, for reasons of clarity only two immediately adjacent side walls 15, 16 are shown.
  • the longitudinal edges of the adjacent side walls 15, 16 are bent so that they result in the assembled state in approximately a quarter-circle-shaped, with its concave surface the center of the housing 1 facing surface.
  • the side walls 15, 16 end facing outward legs 17, 18, which touch in the mounted state.
  • the side walls 15, 16 are fixed against each other.
  • FIG. 5 shows a plan view of a lip seal 8. Clearly visible are the rounded portions in the corner regions of the outer edge, while the inner edge facing the shut-off blade 4 is chamfered in the region of the rounded corners.
  • the groove 7 of the shut-off blade 4 has corresponding bevels. This ensures that the lip seal 8 aligns itself in the groove 7 of the shut-off blade 4.
  • the mold parts 11 may be formed as subsequently inserted into a square housing 1 moldings, in which case the mold parts 11 are glued or screwed for example on the inside of the housing 1.
  • the moldings 11 can be z. B. made of metal or of a refractory material such. B. chamotte exist.
  • the housing 1 only in the area of Absperrlamelle 4 rounded corner areas. But it is also quite possible that the housing 1 over the entire length has corresponding rounded corner areas.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Gasket Seals (AREA)
  • Lift Valve (AREA)

Abstract

The flap, in particular, for protection against fire comprises a pivotable blocking plate (4) whose edges (6) in the closure position are sealed by means of a lip seal (8) against the housing (1) with a rectangular cross section. The blocking plate, the lip seal and at least a part of the housing cross section have rounded, matching corner zone contours.

Description

Die Erfindung betrifft eine Klappe, insbesondere Brandschutzklappe, mit einer Absperrlamelle, die schwenkbar in einem eckigen, insbesondere viereckigen Gehäuse gelagert ist und deren Ränder in der Schließstellung über eine Dichtung gegenüber dem Gehäuse abgedichtet sind, wobei die Dichtung unter der Wirkung von die Absperrlamelle verschwenkenden Stellkräften verformbar ist. Eine solche Klappe ist aus DE 201 02 300 U bekannt.The invention relates to a flap, in particular fire damper, with a Absperrlamelle which is pivotally mounted in a square, in particular quadrangular housing and whose edges are sealed in the closed position via a seal relative to the housing, wherein the seal under the action of the Absperrlamelle pivoting actuating forces is deformable. Such a flap is known from DE 201 02 300 U.

Derartige Klappen werden u.a. als Brandschutzklappen eingesetzt. Sie müssen entsprechend den gesetzlichen Vorschriften auch eine Rauchschutzfunktion erfüllen, insbesondere sollen sie während der Schwelbrandphase eines Brandereignisses die Ausbreitung von Rauch verhindern. Dazu ist in dem Gehäuse der Brandschutzklappe eine umlaufende Anschlagdichtung für die Absperrlamelle vorgesehen. Diese Anschlagdichtung befindet sich in einer Aufnahme, die innenseitig an dem Gehäuse befestigt ist. Sofern die Absperrlamelle an einer mittig in dem Gehäuse angeordneten Schwenkwelle drehbar gelagert ist, wird die Absperrlamelle in zwei Teilbereiche von der Schwenkwelle unterteilt. Dabei ist je eine Dichtung entlang des Randes eines Teilbereiches der Absperrlamelle vorgesehen, wobei beide Dichtungen versetzt zueinander und in Strömungsrichtung gesehen auf je einer Seite der Schwenkwelle angeordnet sind. In der Schließstellung liegt die Absperrlamelle somit mit dem einen Teilbereich auf der einen Seite und mit dem anderen Teilbereich auf der anderen Seite der jeweiligen Anschlagdichtung an.Such flaps are used, inter alia, as fire dampers. They must also fulfill a smoke protection function in accordance with the statutory provisions; in particular, they should prevent the spread of smoke during the smoldering fire phase of a fire event. For this purpose, a circumferential stop seal for Absperrlamelle is provided in the housing of the fire damper. This stop seal is located in a receptacle which is fastened on the inside to the housing. If the shut-off blade is rotatably mounted on a centrally arranged in the housing pivot shaft, the Absperrlamelle is divided into two sub-areas of the pivot shaft. It is ever a seal along the edge of a sub-area provided the Absperrlamelle, both seals are offset from one another and seen in the flow direction on each side of the pivot shaft are arranged. In the closed position, the shut-off blade thus lies with the one partial area on one side and with the other partial area on the other side of the respective stop gasket.

Als nachteilig erweist sich, dass durch die in das Gehäuse hineinragende Aufnahme für die Anschlagdichtung der Strömungsquerschnitt erheblich reduziert und zudem das Strömungsverhalten im Bereich der Absperrlamelle negativ beeinflusst wird. Dieser Nachteil ist besonderes bei Gehäusen mit geringen Querschnittsabmessungen stark ausgeprägt.It proves to be disadvantageous that the flow cross-section is considerably reduced by the receptacle for the abutment gasket projecting into the housing and, in addition, the flow behavior in the area of the shut-off blade is negatively influenced. This disadvantage is particularly pronounced in housings with small cross-sectional dimensions.

Aufgabe der Erfindung ist daher, eine Klappe für eckige Gehäuse anzugeben, die in der Offenstellung weniger stark das Strömungsverhalten beeinflusst.The object of the invention is therefore to provide a flap for angular housing, which influences the flow behavior less in the open position.

Diese Aufgabe wird dadurch gelöst, dass zur Verwendung einer an der Absperrlamelle vorzusehenden Lippendichtung das Gehäuse wenigstens in den in der Schließstellung gegenüber der Absperrlamelle abzudichtenden Eckbereichen abgerundet ausgebildet ist und die Absperrlamelle mit der daran angeordneten Lippendichtung in den Eckbereichen entsprechend abgerundet ausgebildet ist. Durch die abgerundeten Eckbereiche des Gehäuses ist es möglich, dass eine Lippendichtung zur Abdichtung vorgesehen werden kann. Im einfachsten Fall kann die Lippendichtung beispielsweise an der Absperrlamelle angeklebt oder angeschraubt sein. Im montierten Zustand ragt die Lippendichtung dabei soweit über den Umfang der Absperrlamelle heraus, dass der zwischen Absperrlamelle und Gehäuse verbleibende Spalt in der Schließstellung der Absperrlamelle vollständig abgedichtet wird. Beim Einsatz der Lippendichtung in einem viereckigen Gehäuse liegt insoweit die Lippendichtung in der Offenstellung der Absperrlamelle lediglich an den beiden Seitenwänden des Gehäuses, in denen die Schwenkwelle gelagert ist, an. Erst nach dem Verschließen ist die Lippendichtung allseitig mit dem Gehäuse in Kontakt. Da die Lippendichtung mehr über den Umfang der Absperrlamelle hinausragt als die Dicke des zwischen Gehäuse und Absperrlamelle abzudichtenden Spaltes beträgt, wird sie verformt und dichtet so den Spalt sicher.This object is achieved in that, for the use of a lip seal to be provided on the shut-off blade, the housing is rounded at least in the corner areas to be sealed in the closed position relative to the shut-off blade and the shut-off blade is correspondingly rounded in the corner areas with the lip seal arranged thereon. Due to the rounded corner regions of the housing, it is possible that a lip seal can be provided for sealing. In the simplest case, the lip seal may be glued or screwed to the shut-off blade, for example. In the assembled state, the lip seal protrudes so far beyond the circumference of the shut-off blade, that the gap remaining between the shut-off blade and the housing is completely sealed in the closed position of the shut-off blade becomes. When using the lip seal in a square housing so far the lip seal is in the open position of Absperrlamelle only on the two side walls of the housing in which the pivot shaft is mounted on. Only after closing is the lip seal on all sides in contact with the housing. Since the lip seal protrudes more over the circumference of the Absperrlamelle than the thickness of the sealed between housing and Absperrlamelle gap, it is deformed, thus sealing the gap safely.

Bei einer Ausführungsform können die abgerundeten Eckbereiche des Gehäuses durch in etwa viertelkreisförmig ausgebildete, mit ihrer konkaven Fläche dem Mittelpunkt des Gehäuses zugewandte Formteile gebildet sein. Diese Formteile können beispielsweise durch Verkleben in dem eckigen Gehäuse fixiert werden. Es liegt auf der Hand, dass beim Einsatz in einem viereckigen Gehäuse die Formteile in etwa viertelkreisförmig ausgebildet sind und insgesamt vier Formteile im Bereich der Absperrlamelle in den vier Eckbereichen des Gehäuses vorgesehen sein müssen.In one embodiment, the rounded corner regions of the housing can be formed by molded parts which are approximately quarter-circle-shaped and have their concave surface facing the center of the housing. These moldings can be fixed, for example, by gluing in the angular housing. It is obvious that, when used in a quadrangular housing, the molded parts are approximately quarter-circle-shaped and a total of four molded parts must be provided in the region of the shut-off blade in the four corner regions of the housing.

Dabei können die Formteile als Bestandteil einer dem Innern des Gehäuses angepassten und in das Gehäuse einführbaren und dort fixierbaren Rahmenkonstruktion ausgebildet sein. Bei einer solchen Ausführungsform können die Formteile außerhalb des Gehäuses an der Rahmenkonstruktion fixiert werden. Im Anschluss daran wird die dann mit den Formteilen versehene Rahmenkonstruktion in das Gehäuse eingefügt und dort fixiert.In this case, the mold parts may be formed as part of a housing adapted to the interior and inserted into the housing and there fixable frame construction. In such an embodiment, the mold parts can be fixed outside the housing to the frame construction. Following this, the then provided with the moldings frame construction is inserted into the housing and fixed there.

Es ist aber auch durchaus möglich, dass die Abrundungen integraler Teil des Gehäuses sind.But it is also quite possible that the rounded portions are an integral part of the housing.

Bei einer anderen Ausführungsform kann das Gehäuse aus mittels Befestigungsmitteln aneinander anbringbaren und gegeneinander fixierbaren Seitenwänden bestehen, wobei jede Seitenwand entlang ihrer Längskanten derart ausgebildet ist, dass im montierten Zustand der Seitenwände in den inneren Eckbereichen jeweils Abrundungen vorhanden sind. Die Fixierung der einzelnen Seitenwände gegeneinander kann beispielsweise mittels Schrauben erfolgen. Sofern es sich um ein viereckiges Gehäuse handelt, kann das Gehäuse beispielsweise aus vier Seitenwänden oder aus zwei L-förmig ausgebildeten Seitenwänden aufgebaut sein. Was die Anordnung der Abrundungen betrifft, so können die in dem Gehäuse beabsichtigen Abrundungen beispielsweise nur an einer Längskante einer Seitenwand vorgesehen sein, so dass nach der Montage die beabsichtigten Abrundungen in jedem inneren Eckbereich des Gehäuses vorgesehen sind. Es ist aber auch durchaus denkbar, dass - bei einem viereckigen Gehäuse - jede Seitenwand an den Längskanten lediglich einen Teilbereich der Abrundung, beispielsweise eine in etwa achtelkreisförmig ausgebildete Abrundung, aufweist, so dass im montierten Zustand die beabsichtigte viertelkreisförmige Abrundung erzielt wird.In another embodiment, the housing may consist of attachable by means of attachable to each other and mutually fixable side walls, each side wall along its longitudinal edges is formed such that in the assembled state of the side walls in the inner corner regions each rounding are present. The fixation of the individual side walls against each other can be done for example by means of screws. If it is a quadrangular housing, the housing may be constructed for example of four side walls or two L-shaped side walls. As for the arrangement of the rounded portions, the roundings intended in the housing may be provided, for example, only on a longitudinal edge of a side wall, so that after assembly, the intended rounded portions are provided in each inner corner portion of the housing. But it is also quite conceivable that - in a square housing - each side wall at the longitudinal edges only a portion of the rounding, for example, an approximately achtelkreisförmig formed rounding has, so that in the assembled state, the intended quarter-circle rounded is achieved.

Zumindest ein abgerundeter Eckbereich kann aus Metall oder aus einem feuerbeständigen Werkstoff, insbesondere Schamotte, bestehen. Es sind aber auch andere Materialien denkbar.At least one rounded corner region may consist of metal or of a fire-resistant material, in particular chamotte. But there are also other materials conceivable.

Zur Verbesserung des Strömungsverhaltens können die in den Eckbereichen abgerundete Ausgestaltung des Gehäuses lediglich im Bereich der Absperrlamelle vorgesehen sein und die abgerundeten Eckbereiche an- und/oder abströmseitig schräg ausgebildet sein.In order to improve the flow behavior, the rounded configuration of the housing in the corner areas can be provided only in the area of the shut-off lamella and the rounded corner areas on and / or obliquely formed downstream.

Zur Fixierung kann in oder an dem Bereich des Randes der Absperrlamelle eine vorzugsweise umlaufende Nut zur Aufnahme der Lippendichtung vorgesehen sein. Bei Absperrlamellen großer Abmessungen kann es sich dabei empfehlen, dass die Lippendichtung beispielsweise durch Schrauben zusätzlich in der Nut fixiert wird.For fixing a preferably circumferential groove for receiving the lip seal can be provided in or at the region of the edge of the Absperrlamelle. In the case of shut-off slats of large dimensions, it may be advisable for the lip seal to be additionally fixed in the groove, for example by screws.

Zur Selbstausrichtung der in der Nut befindlichen Lippendichtung bietet sich an, dass die der Absperrlamelle zugewandte Innenkante der Lippendichtung im Bereich der abgerundeten Ecken abgeschrägt ausgebildet ist und die Nut in den Ecken entsprechende Abschrägungen aufweist. Durch die schräge Ausbildung von Lippendichtung und Nut findet nach dem Einbringen der Lippendichtung in die Nut in diesen Bereichen eine Selbstausrichtung statt, so dass die Lippendichtung in den Eckbereichen genau auf die Absperrlamelle einerseits und das Gehäuse andererseits abgestimmt ist und gegebenenfalls nur noch bereichsweise in der Nut fixiert werden muss.For self-alignment of the lip seal located in the groove offers itself that the Absperrlamelle facing inner edge of the lip seal is tapered in the region of the rounded corners and the groove has corresponding bevels in the corners. Due to the oblique formation of lip seal and groove self-alignment takes place after the introduction of the lip seal in the groove in these areas, so that the lip seal is precisely matched in the corner areas on the Absperrlamelle one hand and the housing on the other hand and possibly only partially in the groove must be fixed.

Die Lippendichtung kann aus einem synthetischen Kautschuk, vorzugsweise Neopren, bestehen.The lip seal may be made of a synthetic rubber, preferably neoprene.

Zur Verbesserung des Abdichtverhaltens kann das Gehäuse in dem gegenüber der Absperrlamelle in der Schließstellung abzudichtenden Bereich eine Perforation, insbesondere eine aus mehreren Reihen von in Umfangsrichtung gegeneinander versetzten Schlitzen bestehende Perforation, aufweisen und innenseitig zumindest im Bereich der Perforation an dem Gehäuse ein intumeszierndes Material vorgesehen sein. Durch die Perforation wird der Wärmeübergang im Bereich der Absperrlamelle im Brandfall erheblich erschwert, da aufgrund der Perforation die Wärme lediglich über die verbleibenden Bereiche des Gehäuses auf die dem Brandherd abgewandte Seite der Absperrlamelle übertragen werden kann. Bei entsprechender Wärmebelastung dehnt sich zudem das intumeszierende Material, wie z. B. ein synthetisches Elastomer aus und dichtet den Umfang der Absperrlamelle gegenüber der Innenseite der Wandung des Gehäuses ebenso wie die Lagerung der Absperrlamelle ab. Außerdem tritt das intumeszierende Material durch die Perforation und dichtet die Gehäuseaußenseite gegenüber einem Mauerwerk ab.In order to improve the sealing behavior, the housing may have a perforation in the area to be sealed in the closed position relative to the shut-off blade, in particular a perforation consisting of a plurality of rows of slots offset in the circumferential direction, and an intumescent material may be provided on the inside at least in the region of the perforation , Due to the perforation, the heat transfer in the area of the shut-off blade in the event of fire is made considerably more difficult, since the perforation causes the heat to be directed only over the remaining regions of the housing to the source of the fire Side of Absperrlamelle can be transferred. With appropriate heat load also expands the intumescent material, such. As a synthetic elastomer and seals the circumference of the Absperrlamelle against the inside of the wall of the housing as well as the storage of the Absperrlamelle. In addition, the intumescent material passes through the perforation and seals the outside of the case from masonry.

Vorzugsweise ist der die Perforation aufweisende Bereich zur Erhöhung der Stabilität von zwei umlaufenden, vorzugsweise nach innen gerichteten Sicken, begrenzt.Preferably, the region containing the perforation is limited to increase the stability of two circumferential, preferably inwardly directed beads.

Es ist selbstverständlich, das das Gehäuse auch als Rohrabschnitt ausgebildet sein kann.It goes without saying that the housing can also be designed as a pipe section.

Im Folgenden werden in der Zeichnung dargestellte Ausführungsbeispiele der Erfindung erläutert. Es zeigen:

Fig. 1
schematisch einen Längsschnitt durch eine erfindungsgemäße Klappe,
Fig. 2
einen Schnitt in Richtung II - II durch den Gegenstand nach Fig. 1,
Fig. 3
ein Detail des Gegenstandes nach Fig. 1, wobei hier ein anders ausgebildetes Formteil vorgesehen ist,
Fig. 4
einen teilweisen Schnitt durch den Eckbereich eines Gehäuses, das aus zwei mittels Schrauben gegeneinander fixierten Seitenwänden aufgebaut ist, und
Fig. 5
eine Draufsicht auf eine Lippendichtung.
In the following, illustrated embodiments of the invention will be explained in the drawing. Show it:
Fig. 1
schematically a longitudinal section through a flap according to the invention,
Fig. 2
a section in the direction II - II through the article of FIG. 1,
Fig. 3
a detail of the article of FIG. 1, wherein here a differently shaped molded part is provided,
Fig. 4
a partial section through the corner region of a housing, which is composed of two by means of screws against each other fixed side walls, and
Fig. 5
a plan view of a lip seal.

In allen Figuren werden für gleiche bzw. gleichartige Bauteile übereinstimmende Bezugszeichen verwendet.In all figures the same reference numerals are used for identical or similar components.

Die dargestellte Klappe weist ein Gehäuse 1 mit beidseitigen Anschlussflanschen 2 auf. Bei dem dargestellten Gehäuse 1 kann es sich auch um einen Rohrabschnitt handeln.The illustrated flap has a housing 1 with connecting flanges 2 on both sides. The illustrated housing 1 may also be a pipe section.

Im Gehäuse 1 ist auf einer mittig angeordneten Schwenkwelle 3 eine Absperrlamelle 4 schwenkbar gelagert. Die Absperrlamelle 4 kann manuell über einen Hebel 5 aus der in den Fig. 1 und 2 dargestellten Offenstellung in die in Fig. 3 dargestellte Schließstellung bewegt werden. Nicht dargestellt ist, dass an der Schwenkwelle 3 zusätzliche Stellelemente angreifen können, die beispielsweise ein selbsttätiges Verschließen im Notfall bewirken.In the housing 1 a Absperrlamelle 4 is pivotally mounted on a centrally arranged pivot shaft 3. The Absperrlamelle 4 can be moved manually via a lever 5 from the open position shown in FIGS. 1 and 2 in the closed position shown in Fig. 3. It is not shown that can act on the pivot shaft 3 additional adjusting elements, for example, cause an automatic closure in an emergency.

In einem umlaufenden Rand 6 der Absperrlamelle 4 ist in einer ebenfalls umlaufenden Nut 7 eine Lippendichtung 8 vorgesehen, die über den Rand 6 und den Umfang der Absperrlamelle 4 allseitig hinausragt. Die Lippendichtung 8 ragt dabei weiter über den Rand 6 der Absperrlamelle 4 hinaus als der zwischen der Absperrlamelle 4 und dem Gehäuse 1 abzudichtende umlaufende Spalt breit ist.In a peripheral edge 6 of the Absperrlamelle 4 a lip seal 8 is provided in a likewise circumferential groove 7, which projects beyond the edge 6 and the circumference of Absperrlamelle 4 on all sides. The lip seal 8 protrudes further beyond the edge 6 of the Absperrlamelle 4 addition than the sealed between the Absperrlamelle 4 and the housing 1 circumferential gap is wide.

Wie in den Fig. 1 und 2 dargestellt, ist die Lippendichtung 8 in der Offenstellung lediglich auf den zwei gegenüberliegenden Seiten, die mit dem Gehäuse 1 in Verbindung stehen, umgelegt. Hiergegen ist die Lippendichtung 8 im Bereich des an- und abströmseitigen Randes 6 noch unverformt. Erst nach dem Verschwenken der Absperrlamelle 4 in Richtung des Pfeils 9 in die Schließstellung kommt die Lippendichtung 8 auch im Bereich des an- und abströmseitigen Randes 6 der Absperrlamelle 4 mit dem Gehäuse 1 in Berührung und wird mehr und mehr verformt bzw. umgelegt.As shown in FIGS. 1 and 2, the lip seal 8 is folded in the open position only on the two opposite sides, which are in communication with the housing 1, folded. Against this, the lip seal 8 is still undeformed in the region of the on-and-off edge 6. Only after pivoting the Absperrlamelle 4 in the direction of arrow 9 in the closed position, the lip seal 8 comes in the area of the on and downstream Edge 6 of Absperrlamelle 4 with the housing 1 in contact and is more and more deformed or folded.

Wie aus den Fig. ersichtlich, sind in Eckbereichen 10 des Gehäuses 1 im Inneren viertelkreisförmig ausgebildete, mit ihrer konkaven Fläche dem Mittelpunkt des Gehäuses 1 zugewandte Formteile 11 vorgesehen, so dass die Eckbereiche 10 abgerundet sind. Die Absperrlamelle 4 mit der daran angeordneten Lippendichtung 8 ist entsprechend in den Eckbereichen abgerundet. Aufgrund der abgerundeten Eckbereiche 10 und der entsprechend angepassten Absperrlamelle 4 ist es möglich, auch bei den in den Fig. 1 bis 5 dargestellten Klappen eine Lippendichtung 8 vorzusehen.As can be seen from the figures, in the corner regions 10 of the housing 1 in the interior of a quarter-circle, with its concave surface the center of the housing 1 facing mold parts 11 are provided, so that the corner regions 10 are rounded. The Absperrlamelle 4 with the lip seal 8 arranged thereon is rounded in accordance with the corner areas. Due to the rounded corner regions 10 and the correspondingly adapted shut-off blade 4, it is possible to provide a lip seal 8 even in the case of the flaps shown in FIGS. 1 to 5.

Zur Befestigung des Gehäuses 1 an eine nicht dargestellte klimatechnische Anlage sind in den Anschlussflanschen 2 Bohrungen 12 vorgesehen, durch die nicht dargestellte Befestigungsmittel greifen.For attachment of the housing 1 to an air conditioning system, not shown, 2 bores 12 are provided in the connection flanges, grab by the fastening means, not shown.

Während in der in den Fig. 1 und 2 dargestellten Klappe Formteile 11 vorgesehen sind, die an- und abströmseitig senkrecht zum Gehäuse 1 ausgerichtete Stirnflächen aufweisen, ist in Fig. 3 ein Ausführungsbeispiel dargestellt, bei dem die Anströmseite 13 und die Abströmseite 14 schräg zum Gehäuse 1 ausgerichtet sind, um das Strömungsverhalten im Bereich der Absperrlamelle 4 zu verbessern. In Fig. 3 befindet sich die Absperrlamelle 4 in ihrer Schließstellung. Deutlich erkennbar ist, dass sich in dieser Stellung die Lippendichtung 8 in engen flächigem Kontakt mit dem Formteil 11 befindet.While molded parts 11 are provided in the flap shown in FIGS. 1 and 2, which have front surfaces oriented perpendicular to the housing 1 on the outflow side, an embodiment is shown in FIG. 3 in which the upstream side 13 and the outflow side 14 are inclined relative to Housing 1 are aligned to improve the flow behavior in the field of Absperrlamelle 4. In Fig. 3, the Absperrlamelle 4 is in its closed position. It can be clearly seen that in this position, the lip seal 8 is in close planar contact with the molded part 11.

Die in Fig. 4 dargestellte Detailzeichnung zeigt ein Ausführungsbeispiel, bei dem das Gehäuse 1 aus insgesamt vier Seitenwänden aufgebaut ist, wobei aus Übersichtlichkeitsgründen nur zwei unmittelbar angrenzende Seitenwände 15, 16 dargestellt sind. Die Längskanten der angrenzenden Seitenwände 15, 16 sind dabei so gebogen, dass sie im montierten Zustand eine in etwa viertelkreisförmig ausgebildete, mit ihrer konkaven Fläche dem Mittelpunkt des Gehäuses 1 zugewandte Fläche ergeben. Zur Fixierung weisen die Seitenwände 15, 16 endseitig nach außen weisende Schenkel 17, 18 auf, die im montierten Zustand sich berühren. Mittels einer Schraube 19 sind die Seitenwände 15, 16 gegeneinander fixiert.The detailed drawing shown in Fig. 4 shows an embodiment in which the housing 1 is composed of a total of four side walls, for reasons of clarity only two immediately adjacent side walls 15, 16 are shown. The longitudinal edges of the adjacent side walls 15, 16 are bent so that they result in the assembled state in approximately a quarter-circle-shaped, with its concave surface the center of the housing 1 facing surface. For fixing, the side walls 15, 16 end facing outward legs 17, 18, which touch in the mounted state. By means of a screw 19, the side walls 15, 16 are fixed against each other.

Nach der Montage der vier Seitenwände, wobei in Fig. 4 lediglich die Seitenwände 15, 16 dargestellt sind, werden stirnseitig je zwei Anschlussflansche 2 montiert, die beispielsweise angeschweißt sind.After mounting the four side walls, wherein in Fig. 4, only the side walls 15, 16 are shown, two connecting flanges 2 are mounted frontally, for example, are welded.

Fig. 5 zeigt eine Draufsicht auf eine Lippendichtung 8. Deutlich erkennbar sind die Abrundungen in den Eckbereichen der Außenkante, während die der Absperrlamelle 4 zugewandte Innenkante im Bereich der abgerundeten Ecken abgeschrägt ist. Die Nut 7 der Absperrlamelle 4 weist entsprechende Abschrägungen auf. Hierdurch wird gewährleistet, dass sich die Lippendichtung 8 in der Nut 7 der Absperrlamelle 4 selbst ausrichtet.FIG. 5 shows a plan view of a lip seal 8. Clearly visible are the rounded portions in the corner regions of the outer edge, while the inner edge facing the shut-off blade 4 is chamfered in the region of the rounded corners. The groove 7 of the shut-off blade 4 has corresponding bevels. This ensures that the lip seal 8 aligns itself in the groove 7 of the shut-off blade 4.

Es bedarf keiner weiteren Ausführungen, dass die Formteile 11 auch als nachträglich in ein eckiges Gehäuse 1 eingesetzte Formteile ausgebildet sein können, wobei in diesem Fall die Formteile 11 beispielsweise an der Innenseite des Gehäuses 1 festgeklebt oder festgeschraubt sind. Die Formteile 11 können dabei z. B. aus Metall oder aus einem feuerfesten bzw. -beständigen Material, wie z. B. Schamotte, bestehen.It requires no further statements that the mold parts 11 may be formed as subsequently inserted into a square housing 1 moldings, in which case the mold parts 11 are glued or screwed for example on the inside of the housing 1. The moldings 11 can be z. B. made of metal or of a refractory material such. B. chamotte exist.

Bei dem in Fig. 1 bis 4 dargestellten Ausführungsbeispiel der Erfindung weist das Gehäuse 1 lediglich im Bereich der Absperrlamelle 4 abgerundete Eckbereiche auf. Es ist aber auch durchaus möglich, dass das Gehäuse 1 über die komplette Länge entsprechende abgerundete Eckbereiche aufweist.In the embodiment of the invention shown in Fig. 1 to 4, the housing 1 only in the area of Absperrlamelle 4 rounded corner areas. But it is also quite possible that the housing 1 over the entire length has corresponding rounded corner areas.

Claims (14)

  1. Flap, more especially a fire-proof flap, the said flap comprising a shut-off disc (4), which is mounted so as to be pivotable in a cornered, more especially four-cornered, housing (1), the edges (6) of the said flap being sealed in the closed position relative to the housing (1) by means of a seal, wherein the seal is deformable under the effect of displacement forces that pivot the shut-off disc (4), characterised by the use of a lip seal (8) that is to be provided at the shut-off disc (4), the housing (1) being rounded at least in the corner regions that, in the closed position, are to be sealed relative to the shut-off disc (4), and the shut-off disc (4), with the lip seal (8) disposed thereon, being correspondingly rounded in the corner regions.
  2. Flap according to claim 1, characterised in that the rounded corner regions of the housing (1) are formed by moulded parts (11) that are approximately in the form of a quadrant and with their concave faces facing the centre of the housing (1).
  3. Flap according to claim 2, characterised in that the moulded parts (11) are in the form of a component part of a frame structure that is adapted to the interior of the housing (1), is insertable into the housing (1) and is securable in that location.
  4. Flap according to claim 1, characterised in that the roundings are an integral part of the housing (1).
  5. Flap according to one of claims 1 to 4, characterised in that the housing (1) comprises lateral walls (15, 16) that are moveable towards each other by means of securing means and are securable to each other, wherein each lateral wall (15, 16) is configured along its longitudinal edges in such a manner that, with the lateral walls (15, 16) in the mounted position, there are roundings in each of the inner corner regions.
  6. Flap according to one of claims 1 to 5, characterised in that at least one rounded corner region is made from metal.
  7. Flap according to one of claims 1 to 6, characterised in that at least one rounder corner region is made from a fire-resistant material, more especially chamotte.
  8. Flap according to one of claims 1 to 7, characterised in that the rounded development of the housing (1) in the corner regions is provided purely in the region of the shut-off disc (4) and the rounded corner regions are inclined on the incoming and/or outgoing side.
  9. Flap according to one of claims 1 to 8, characterised in that a preferably circumferential groove (7) is provided in or at the region of the edge (6) of the shut-off disc (4) to accommodate the lip seal (8).
  10. Flap according to claim 9, characterised in that the inside edge of the lip seal (8) that faces the shut-off disc (4) is inclined in the region of the rounded corners and the groove (7) includes corresponding inclinations in the corners.
  11. Flap according to one of claims 1 to 10, characterised in that the lip seal (8) is produced from a synthetic rubber, preferably neoprene.
  12. Flap according to one of claims 1 to 11, characterised in that the housing (1), in the region that is to provide a seal relative to the shut-off disc (4) in the closed position, includes a perforation, more especially a perforation that comprises several rows of slots that are offset against each other in the circumferential direction, and on the inside, at least in the region of the perforation, an intumescent material is provided at the housing (1).
  13. Flap according to claim 12, characterised in that the region that includes the perforation is defined by two circumferential beads that are preferably directed inwards.
  14. Flap according to one of claims 1 to 13, characterised in that the housing (1) is in the form of a tube section.
EP02017822A 2001-10-09 2002-08-08 Damper, in particular fire damper Expired - Lifetime EP1302220B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20116484U 2001-10-09
DE20116484U DE20116484U1 (en) 2001-10-09 2001-10-09 Flap, especially fire damper

Publications (2)

Publication Number Publication Date
EP1302220A1 EP1302220A1 (en) 2003-04-16
EP1302220B1 true EP1302220B1 (en) 2007-07-11

Family

ID=7962609

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02017822A Expired - Lifetime EP1302220B1 (en) 2001-10-09 2002-08-08 Damper, in particular fire damper

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EP (1) EP1302220B1 (en)
AT (1) ATE366603T1 (en)
DE (2) DE20116484U1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10214241B4 (en) * 2002-03-26 2022-05-12 Werner Wildeboer Duct-shaped housing for a shut-off device in ventilation ducts, shut-off device with the same and method of manufacturing the same
PL205587B1 (en) 2005-10-27 2010-05-31 Ciat Spo & Lstrok Ka Z Ogranic Fire protection cut off flap
DE102010056392B4 (en) * 2010-12-28 2015-02-19 Gert Bartholomäus One-sided hinged fire damper with improved sealing effect

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20102300U1 (en) * 2001-02-09 2001-05-31 Trox Gmbh Geb Flap, especially fire damper

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528483A1 (en) * 1982-06-09 1983-12-16 Leneveu Michel Stopper shutter for hot air exit grill - has same section as sheath but with slight play to allow movement
US4766807A (en) * 1987-08-27 1988-08-30 American Standard Inc. Damper blade seal
FR2697435B1 (en) * 1992-10-29 1994-12-16 France Air Thermal retarder for ventilation device intended for fire protection.
FR2753104B1 (en) * 1996-09-11 1998-10-30 Aldes Aeraulique SEALING SYSTEM FOR A VENTILATION DUCT BLOCKING DEVICE, IN PARTICULAR FOR A FIRE-FIGHTING VALVE OR SMOKE EXHAUST
FR2763854B1 (en) * 1997-06-03 1999-07-09 Aldes Aeraulique DEVICE FOR SEALING A VENTILAION DUCT, IN PARTICULAR A FIRE-RESISTANT VALVE OR SMOKE EXHAUST

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20102300U1 (en) * 2001-02-09 2001-05-31 Trox Gmbh Geb Flap, especially fire damper

Also Published As

Publication number Publication date
DE20116484U1 (en) 2001-12-13
ATE366603T1 (en) 2007-08-15
DE50210443D1 (en) 2007-08-23
EP1302220A1 (en) 2003-04-16

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