EP0890372A2 - Clapet coupe-feu à fermeture automatique - Google Patents

Clapet coupe-feu à fermeture automatique Download PDF

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Publication number
EP0890372A2
EP0890372A2 EP98250255A EP98250255A EP0890372A2 EP 0890372 A2 EP0890372 A2 EP 0890372A2 EP 98250255 A EP98250255 A EP 98250255A EP 98250255 A EP98250255 A EP 98250255A EP 0890372 A2 EP0890372 A2 EP 0890372A2
Authority
EP
European Patent Office
Prior art keywords
shut
fire protection
protection device
elements
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98250255A
Other languages
German (de)
English (en)
Other versions
EP0890372A3 (fr
Inventor
Ingo Dr. Bruchhold
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.)
Bruchhold Ingo Dr
Original Assignee
Lunos-Lueftung & Co Ventilatoren KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lunos-Lueftung & Co Ventilatoren KG GmbH filed Critical Lunos-Lueftung & Co Ventilatoren KG GmbH
Publication of EP0890372A2 publication Critical patent/EP0890372A2/fr
Publication of EP0890372A3 publication Critical patent/EP0890372A3/fr
Withdrawn legal-status Critical Current

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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
    • A62C2/14—Hinged dampers with two or more blades
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/241—Operating or controlling mechanisms having mechanical actuators and heat sensitive parts
    • A62C2/242—Operating or controlling mechanisms having mechanical actuators and heat sensitive parts with fusible links
    • 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
    • F24F13/1413—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre using more than one tilting member, e.g. with several pivoting blades
    • 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 fire protection device in Preamble of claim 1 specified type or a corresponding Shut-off element.
  • the well-known fire protection device shows the essential Disadvantage that the foaming of the fire protection compound in Fire always occurs with a certain inertia and thereby a lower limit for the period of response until the fire protection device is completely closed - due to physical reasons - should not be undercut can. A short-term, preferably sudden, The fire protection device cannot be closed. It is also disadvantageous that foaming the fire protection compound is essentially non-directional Force effect is generated. This is neither the direction nor the size of the force acting on the shut-off elements exactly predictable so that a complete closure the flow channel is not guaranteed in every case.
  • a corresponding fire protection device is also in the German published application DE 196 27 987.
  • a fire protection device is known from US Pat. No. 4,627,498 known for a ventilation system in which a shut-off element a pressure-loaded solder in one Container is provided. When melting the solder material a relative movement occurs between the the pressure generating components, which are used to close the Flow path is usable.
  • the direction of the closing force is indeed fixed, but only a relatively delayed response the fire protection device possible because the solder in the area encapsulated a place that is difficult to access for heat conduction where the mass of the encapsulation is the response time constant elevated.
  • the solution is technically complex.
  • the Invention Based on the shortcomings of the prior art, the Invention, the object of a fire protection device to specify the genus mentioned at the beginning, which is due to a precise trigger temperature and a short response time and therefore simple Build an improved functional reliability and a higher one Has utility value.
  • the invention includes the realization that at Use fusible link to lock a shut-off element a sudden movement in an "open” position is then achievable in a "closed” position, if a substantially unobstructed drain melted Solder is secured.
  • the solder is initially blocking in a U-shaped groove of a spring element or in a corresponding hinge-like element provided in a manner that hinders its movement, that this gutter in the relaxed state of the element - So in the closed position of the shut-off element - one has a reduced cross section. So the solder holds the open position of the shut-off element through its cross section the gutter - under tension of the spring or other hinge-like element - locking open.
  • the Lot is located near the swivel axis and can the way of the shut-off element at temperatures below the trigger temperature even against relatively large spring forces block effectively.
  • the solder is in the open position of the shut-off element always pressurized with the spring preload, so the configuration in the low temperature range is long-term stable.
  • a temperature increase will transferred directly to the solder, the spring surfaces a large surface for heating by means of cavitation have the flow medium. Because additional essential Masses of material that need to be heated are missing an activation of the shut-off device at short notice and immediately.
  • shut-off elements which are in the "open" position the fire protection device part of the wall of the flow channel form and - arranged in the plane of the channel wall - To be essentially perpendicular to Axis extending longitudinal axis of the channel pivotally arranged are.
  • the shut-off elements are each on a spring element attached, which by a fusible link against the spring force in a pre-stressed state is held that the individual, each attached to them Shut-off elements parallel to the direction of flow of the medium transported in the flow channel.
  • shut-off element with the spring element or the hinge-like connecting element is connected such that the crossbar of the "U” essentially points in the direction of the shut-off element, so that itself with a blocked shut-off element and melted Solder body is a component of the movement of the shut-off element results, which leads to spring or hinge-like Connection element is directed.
  • the generated with it Movement component of the shut-off element "pulls" this in case of dirt or other undesirable Blockages of the channel area slightly “back”, see above that the shut-off element is released in this way.
  • the fusible link as a circular ring with a square, in particular square, cross-section.
  • the spring elements consist of a flat, ribbon-shaped spring material and have a resilient area, which against the spring force is expandable in a substantially U-shape and picks up the fusible link.
  • the individual spring elements are distributed evenly in the circumferential direction on the solder body arranged and each widened with its U-shaped Put the area on the fusible link.
  • shut-off elements are essentially triangular, preferably an isosceles triangle, the pivot axis parallel to the base of the Triangle stretches.
  • the individual shut-off elements In the "closed" position of the Fire protection devices form the individual shut-off elements the lateral surface of a circular cone.
  • shut-off elements in the "closed" position of the fire protection device good isolation can be achieved are further, similarly trained and on the solder body attached spring elements provided which are supported on the corner areas of adjacent shut-off elements and thereby the pivoting movement in the "Closed" position of the fire protection device on the Support the base of the triangular shut-off elements.
  • the edges and / or the back of the individual shut-off elements with a foaming agent that reacts when heated coated. This ensures in a simple way that the "closed" position of the fire protection device inherent narrow slots between the side edges of the shut-off elements after abrupt bulkheads are closed.
  • the foaming agent in the form of a thin mat on the Back of the individual shut-off elements facing away from the flow medium to arrange and preferably by gluing, riveting or flanges to attach.
  • the invention are in compliance with an axial distance two ring-shaped fusible links with the corresponding ones Shut-off elements attached to the spring elements of the above described form provided.
  • the arrangement of the shut-off elements is mirror-symmetrical, so that in the "closed” position the outer surface of the fire protection device of two circular cones facing one another isolate the flow channel.
  • the fire protection device in the event of a fire two substantially parallel to each other Layers including a natural air cushion be sealed off suddenly, causing a penetration the heat from the lateral surfaces of the two circular cones in the is substantially prevented even if the foaming agent not yet on the back of the individual shut-off elements has become fully effective and between the individual shut-off elements located narrow slots has not yet filled in completely.
  • a particularly small size is for the fire protection device attainable if the two ring-shaped fusible links advantageously in the circumferential direction are offset from each other that the tips of the attached to the first fusible body, triangular trained shut-off elements in between the on the second fusible body attached shut-off elements available Open spaces protrude.
  • the fire protection device corresponds to an additional one Training a volume under heat enlarging, preferably having a foaming agent Has device which the shut-off elements "Open" position of the fire protection device from the outside in Embraces the shape of a cuff.
  • a fusible link body in which the fusible link additives in the form of metallic particles or chips, preferably made of a heat-conducting material like copper.
  • This solder body is preferred produced by heat treatment in the manner of "sintering". This makes ductile behavior easy of the fusible body improved without its Flowability when heated in the event of fire is impermissibly restricted becomes.
  • a simplification in the form and dimensional production of the fusible body is corresponding to another Variant of the invention can be achieved by the circular ring several, preferably three, sintered, arcuate segments is put together.
  • the connection between the individual elbows is soldered to a separate one Made of solder.
  • the channel can be made in one piece as a closed one Pipe made and assembled without modification become.
  • the fire protection device shown in FIG. 1 in the "open" position 10 is a separate component between two channel sections 7 used a ventilation system.
  • an annular Fused solder body 3 which is a plurality of spring elements 2 (or corresponding - in the figures corresponding hinge-like connecting elements, not shown) shut-off elements connected to it 1 wearing.
  • the spring elements 2 are even on the circumference of the Solder body 3 distributed. They form together with a carrier a crown-shaped ring 4, which an equal distance between adjacent spring elements 2 fixed.
  • the spring elements 2 consist of a flat, band-shaped material and have a U-shaped section 2.1, the shape of which is formed by the annular solder body 3 maintained against the action of the spring force becomes.
  • Shut-off elements 1 are isosceles triangles trained and made of relatively thin sheet steel. They are riveted to the spring elements or Enforcement connected.
  • shut-off elements 1 pivot by one extending perpendicular to the longitudinal axis 9 of the channel 7 Axis inward and take a substantially radial Position on. Form the triangular shut-off elements 1 the lateral surface of a circular cone 11, as in FIG. 2, in which the fire protection device 10 in the "closed" position is shown.
  • the number of spring elements 2 is twice as large here Number of shut-off elements 1, which are not related to the Shut-off elements 1 spring elements fastened by riveting each at the two adjacent triangle corners 1.4 arranged adjacent in the circumferential direction Support shut-off elements. This will make the swivel movement the shut-off elements 2 in a sudden transition of Fire protection device 10 in the "closed" position also forced in the edge area, so that there too an essentially closed lateral surface of the circular cone 11 trains.
  • the foaming agent is 1.2 glued to the metallic carrier material 1.1 as a mat or connected to the carrier material by riveting or flanging.
  • the coating takes place when applied by dipping on both sides, so that at the same time corrosion protection is achievable. Since the foaming of the foaming agent 1.2 in any direction takes place, especially those at "Closed" position of the fire protection device 10 between the triangle leg extending parallel to each other the shut-off elements 2 by column the foam material sealed gas-tight. With that, too Manufacturing tolerances or the effects of contamination compensated, which otherwise a complete closure would prevent the opening.
  • Two fastening bolts 6 are provided in the wall 5, with which the fire protection device 10 with a wall bracket is connectable.
  • fire protection device 10 ' has two annular solder body 3, which under Maintaining an axial distance with the associated, shut-off elements 1, 1 'attached to spring elements 2, 2' are arranged in the form described above.
  • shut-off elements 1, 1 'attached to spring elements 2, 2' are arranged in the form described above.
  • the fire protection device 10 also assigns one a cuff shaped foaming agent 12, which in In the event of fire, the volume depends on the effects of heat from the material composition to the two to Magnified four times.
  • the cuff 12 encompasses the shut-off elements 1 and 1 'with the fire protection device in the "open" position from the outside. This can cause heat resulting foam in the space between the from the shut-off elements 1 and 1 'in a first reaction phase the fire protection device 10 'formed lateral surfaces the circular cone 11, 11 'a closed foam wall 12 'which form the flow channel in a second reaction phase the fire protection device 10 'additionally seals off.
  • Figures 5 and 6 show a perspective view a portion of a crown-shaped ring 4, which on a fusible link 3 formed as a circular ring is in the "open” position or "closed” position the fire protection device.
  • the crown-shaped ring 4 fixes spring elements 2 in one fixed distance from each other in the circumferential direction.
  • the spring element 2 consists of band-shaped spring steel and has one through the solid solder body 3 ("open" position of the Fire protection device) against the spring force into a U-shape with the same leg length spread section 2.1 on.
  • the free leg 2.2 of the spring element 2 has two holes 2.3, which for the secure rivet connection between the spring element 2 and a shut-off element (compare position 1 in Figure 1) are provided.
  • the fusible link 3 In the event of a fire, the fusible link 3 will be over to its Melting point heated by the hot flow medium. The melting solder 3 is no longer able to shape of the spread section 2.1, so that the free leg 2.2 suddenly under the effect of Spring force swings around axis 2.4.
  • shut-off element 1, 1 'with the Spring element 2, 2 'or the hinge-like connecting element is connected such that the crossbar of the "U" in points essentially in the direction of the shut-off element 1, 1 ', so that when the shut-off element 1, 1 'and melted Solder body is a component of the movement of the shut-off element 1, 1 'results, which for spring or hinge-like connecting element is directed towards.
  • leg length of the U-shaped section 2.1 can be the angle through which the free leg 2.2 of the Spring element 2 when the fire protection device responds is pivoted, change.
  • FIGS. 7a, 7b and 7c show embodiments of annularly shaped fusible links 3, 3 'and 3 ", which is characterized both by its material composition as well as differ in their construction.
  • the fusible link body 3 shown in FIG. 7a consists of a pure solder material with predefinable melting temperature.
  • the fusible body 3 is made of three pieces of the same size 3.1 "composed, the connection to the Joints are made by a 3.2 “fusible link. Likewise, it is possible to use the individual arch pieces 3.1 "as sintered parts with a metal particle insert.
  • the arrangement is manufactured from shut-off elements and blocked by the solder strand Spring elements as a one-piece insert in the form of a Kind of "mat”, this undivided along the wall of the (circular) closed pipe or channel becomes.
  • the "mat” then contains a butt edge as a stop surface against one directed in the longitudinal direction of the channel Move.
  • the invention is not limited in its execution the preferred embodiments given above. If the spring elements by appropriate - under spring preload standing - hinge-like connecting elements the functions are replaced “Rotation bearing” on the one hand and “spring preload” on the other separated from each other. It can also block the pivoting movement of the shut-off elements by solder under spring preload in almost any near the Axis of the pivoting area his. Here is - due to the leverage effect - the one to be released Way very small and can be effective by solder - even large ones Resisting forces - being blocked.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Safety Valves (AREA)
  • Air-Flow Control Members (AREA)
  • Fuses (AREA)
EP98250255A 1997-07-11 1998-07-11 Clapet coupe-feu à fermeture automatique Withdrawn EP0890372A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19731180A DE19731180C2 (de) 1997-07-11 1997-07-11 Selbsttätig schließende Brandschutzeinrichtung
DE19731180 1997-07-11

Publications (2)

Publication Number Publication Date
EP0890372A2 true EP0890372A2 (fr) 1999-01-13
EP0890372A3 EP0890372A3 (fr) 2000-11-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP98250255A Withdrawn EP0890372A3 (fr) 1997-07-11 1998-07-11 Clapet coupe-feu à fermeture automatique

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EP (1) EP0890372A3 (fr)
DE (1) DE19731180C2 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1020887C2 (nl) * 2002-06-17 2003-12-19 Walraven J Van Bv Manchet met intumescent materiaal voor een leiding.
WO2014173584A1 (fr) * 2013-04-23 2014-10-30 Advanced Air (Uk) Ltd Améliorations concernant des clapets coupe-feu
DE102017006661A1 (de) * 2017-07-13 2019-01-17 Gert Bartholomäus Brandschutzeinrichtung für Rohrleitungen mit einer schwimmenden Lagerung der Brandschutzklappen
EP3297735A4 (fr) * 2015-05-22 2019-02-13 King, Jack, F., Jr. Registre coupe-feu intumescent passif de système de gaines
EP3666344A1 (fr) * 2018-12-10 2020-06-17 Hilti Aktiengesellschaft Élément ignifuge bimétallique
AU2016200823B2 (en) * 2015-02-13 2020-09-03 Rakman International Pty Ltd Fire Collar
WO2021024002A1 (fr) * 2019-08-06 2021-02-11 Vranjes Karlo Clapet coupe-feu à deux anneaux de fermeture
WO2022011418A1 (fr) * 2020-07-14 2022-01-20 Ig6 Pty Ltd Collier coupe-feu amélioré
KR102541030B1 (ko) * 2022-05-02 2023-06-05 김석순 방화댐퍼가 구비된 에어덕트용 수직관

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004004605U1 (de) * 2004-03-24 2004-08-26 Bartholomäus GmbH Brandschutzeinrichtung zur Abschottung einer Lüftungsrohrleitung im Brandfall
DE102004047093A1 (de) * 2004-09-29 2006-06-08 Bartholomäus, Gert Absperrvorrichtung zum Brandverschluss eines Rohres oder Kanals

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627498A (en) 1982-11-12 1986-12-09 Halton Oy Fuse design for fire limiters or other safety appliances in ventilation installations
DE29511265U1 (de) 1995-07-12 1995-09-21 Bartholomäus, Gert, 89607 Emerkingen Brandschutzeinrichtung zur Abschottung einer Lüftungsrohrleitung

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
DE7023250U (de) * 1970-09-24 Gebr Trox Gmbh Sperrvorrichtung für Brandabschnitte in Lüftungs- und Klimaanlagen
SE426980B (sv) * 1976-08-31 1983-02-21 Pont A Mousson Eldbestendig anordning for att forbinda tva ror hos en rorledning
US5155957A (en) * 1991-01-14 1992-10-20 National Improvement Company, Inc. Fire safety device
DE29613318U1 (de) * 1996-08-01 1996-10-02 Wildeboer, Werner, 26826 Weener Brandschutzeinrichtung für durch Wand- und/oder Decken eines Gebäudes geführte Leitungen einer Klima- und/oder Be- bzw. Entlüftungsanlage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627498A (en) 1982-11-12 1986-12-09 Halton Oy Fuse design for fire limiters or other safety appliances in ventilation installations
DE29511265U1 (de) 1995-07-12 1995-09-21 Bartholomäus, Gert, 89607 Emerkingen Brandschutzeinrichtung zur Abschottung einer Lüftungsrohrleitung
DE19627987A1 (de) 1995-07-12 1997-01-16 Gert Bartholomaeus Brandschutzeinrichtung zur Abschottung einer Lüftungsrohrleitung

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1374953A1 (fr) * 2002-06-17 2004-01-02 J. van Walraven B.V. Passage de conduit à matériau intumescent
NL1020887C2 (nl) * 2002-06-17 2003-12-19 Walraven J Van Bv Manchet met intumescent materiaal voor een leiding.
WO2014173584A1 (fr) * 2013-04-23 2014-10-30 Advanced Air (Uk) Ltd Améliorations concernant des clapets coupe-feu
GB2557865A (en) * 2013-04-23 2018-07-04 Advanced Air Uk Ltd Improvements in fire dampers
GB2557865B (en) * 2013-04-23 2020-08-19 Advanced Air Uk Ltd Improvements in fire dampers
AU2016200823B2 (en) * 2015-02-13 2020-09-03 Rakman International Pty Ltd Fire Collar
EP3297735A4 (fr) * 2015-05-22 2019-02-13 King, Jack, F., Jr. Registre coupe-feu intumescent passif de système de gaines
US10323856B2 (en) 2015-05-22 2019-06-18 Superposed Associates Llc Passive ductwork intumescent fire damper
US11105530B2 (en) 2015-05-22 2021-08-31 Superposed Associates Llc Passive ductwork intumescent fire damper
DE102017006661A1 (de) * 2017-07-13 2019-01-17 Gert Bartholomäus Brandschutzeinrichtung für Rohrleitungen mit einer schwimmenden Lagerung der Brandschutzklappen
DE102017006661B4 (de) * 2017-07-13 2020-02-06 Gert Bartholomäus Brandschutzeinrichtung für Rohrleitungen mit einer schwimmenden Lagerung der Brandschutzklappen
EP3666344A1 (fr) * 2018-12-10 2020-06-17 Hilti Aktiengesellschaft Élément ignifuge bimétallique
WO2020120107A1 (fr) * 2018-12-10 2020-06-18 Hilti Aktiengesellschaft Élément ignifuge comprenant un bimétal
AU2019396380B2 (en) * 2018-12-10 2025-10-09 Hilti Aktiengesellschaft Fire protection element with bimetal
US12480604B2 (en) 2018-12-10 2025-11-25 Hilti Aktiengesellschaft Fire protection element having bimetal
WO2021024002A1 (fr) * 2019-08-06 2021-02-11 Vranjes Karlo Clapet coupe-feu à deux anneaux de fermeture
WO2022011418A1 (fr) * 2020-07-14 2022-01-20 Ig6 Pty Ltd Collier coupe-feu amélioré
KR102541030B1 (ko) * 2022-05-02 2023-06-05 김석순 방화댐퍼가 구비된 에어덕트용 수직관

Also Published As

Publication number Publication date
DE19731180C2 (de) 2003-05-22
DE19731180A1 (de) 1999-01-14
EP0890372A3 (fr) 2000-11-08

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