EP0572316A1 - Feuerschutzklappe - Google Patents

Feuerschutzklappe Download PDF

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Publication number
EP0572316A1
EP0572316A1 EP93401339A EP93401339A EP0572316A1 EP 0572316 A1 EP0572316 A1 EP 0572316A1 EP 93401339 A EP93401339 A EP 93401339A EP 93401339 A EP93401339 A EP 93401339A EP 0572316 A1 EP0572316 A1 EP 0572316A1
Authority
EP
European Patent Office
Prior art keywords
valve
seat
pivot axis
hand
support
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Withdrawn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
EP93401339A
Other languages
English (en)
French (fr)
Inventor
Pierre Constantin
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.)
VRACO
Original Assignee
VRACO
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 VRACO filed Critical VRACO
Publication of EP0572316A1 publication Critical patent/EP0572316A1/de
Withdrawn legal-status Critical Current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

Definitions

  • the valve of the invention comprises a valve mounted on a pivot axis and cooperating with a valve seat disposed inside a support, valve characterized in that the valve is fixed on a pivot axis offset by from the plane of the valve, on the other hand from the axis of this valve, in that this valve has a conical periphery whose large base is located on the side of the valve provided with the pivot axis and in that the periphery of this valve cooperates with a valve seat having a bearing surface of a corresponding conicity, the valve and the valve seat comprising materials having good thermal insulation characteristics.
  • the valve and the valve seat are produced using two parallel plates framing a plate of thermally insulating material so that in the valve closed position, the valve plates and of the seat on the one hand, and the insulating material of the valve and of the seat on the other hand, are placed respectively in the same plane.
  • a piece of insulating material is arranged inside the support so as to cover the valve seat plate arranged opposite the pivot axis.
  • the object of the present invention is therefore to provide a fire stop valve which can be used as a safety valve, in particular for ventilation passages, in order for example to isolate the containment enclosures from a nuclear plant.
  • This valve which provides protection against the spread of fire, eliminates the thermal bridges between the two faces of the valve and allows, during its assembly, to precisely adjust the continuous conical sealing surfaces of the valve on its seat.
  • the fire stop valve shown in the attached drawings thus comprises a support 1 inside which is mounted the valve 2 secured to an axis 3 pivoting in bearings 4 and 5, this axis being capable of being driven in rotation from a motor member constituted for example by a pneumatic cylinder 6.
  • the valve 2 which in the example shown is circular, has a conical periphery whose large base is located on the side of the valve having the pivot axis 3.
  • This conical periphery 21 forms a continuous sealing surface and cooperates with the corresponding bearing surface 61 of a valve seat 6.
  • the valve 2 is fixed to the axis 3 by a central fitting 7 and two lateral fittings 8, these fittings being arranged so that the axis 3 is offset on the one hand from the plane of the valve 2, on the other hand from the axis OO of this valve.
  • the valve 2 consists of two parallel plates 22, 23 for example of metal, framing a relatively thick core 24 made of thermally insulating and preferably refractory material.
  • the assembly of these components is obtained by 25 screws regularly distributed around the periphery of the valve.
  • the seat 6 of this valve also comprises two plates in the form of a crown 62, 63 framing a core of thermally insulating and preferably refractory material 64.
  • valve seat The structure of these components of the valve seat is the same as that of the components of the valve itself, so that, in the closed position, the frame plates 22, 23 of the valve are placed in the same plane as the plates. frame 62, 63 of the seat while the souls 24 and 64 of the valve and the seat are also located in the same plane and form between them the sealing surfaces 2 port, 61.
  • the valve support comprises a ferrule made in two parts, namely a ferrule of small diameter 9 crossed by the pivot axis 3 and a ferrule of large diameter 10 supporting the seat 6.
  • a piece of insulating material 11 constituting a crown is also disposed against the internal face of the ferrule 10 and against the crown-shaped plate 62 of the seat in order to ensure effective thermal protection of the area of the valve seat as well as of the support.
  • the two ferrules 9 and 10 are connected one to the other by means of the crown 63 of the seat and are also assembled to lateral annular plates 12 and 121 fixed, at their outer periphery, to a ferrule 13.
  • the two frame plates 11 and 12 are provided with holes and are connected by pipes 16 allowing the passage of assembly screws so that this support 1 constitutes a connection flange with the adjacent pipes.
  • the sleeves 141 and 142 allowing the passage of the pivot axis 3, include guide rings 171 and 172.
  • the ring 171 is arranged inside a cover 18 fixed to a support plate 143 of the sleeve 142 by screws 181 arranged through holes of enlarged diameter of the cover 18. This arrangement makes it possible to adjust the lateral position of pivot axis 3.
  • the cover 18 is also provided with an axial needle screw 182 making it possible to adjust the axial position of the pivot axis 3 by means of elastic support washers 184 of the Belleville washer type.
  • the sleeve 141 also supports a support plate 144 on which is fixed, using screws 19, the sleeve 15 supporting the drive member 7 and the guide ring 172.
  • the holes provided in the flange of the sleeve 15 are also of an enlarged diameter relative to the diameter of the screws 19 so as to allow lateral adjustment of this part of the axis 3.
  • this axis 3 can be precisely adjusted in the axial direction and in the lateral direction so that the conical periphery 21 of the valve can be precisely centered on the conical periphery 61 of the seat 6.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Lift Valve (AREA)
EP93401339A 1992-05-26 1993-05-25 Feuerschutzklappe Withdrawn EP0572316A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9206440A FR2691636B1 (fr) 1992-05-26 1992-05-26 Vanne coupe-feu.
FR9206440 1992-05-26

Publications (1)

Publication Number Publication Date
EP0572316A1 true EP0572316A1 (de) 1993-12-01

Family

ID=9430201

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93401339A Withdrawn EP0572316A1 (de) 1992-05-26 1993-05-25 Feuerschutzklappe

Country Status (2)

Country Link
EP (1) EP0572316A1 (de)
FR (1) FR2691636B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4409088A1 (de) * 1994-03-17 1995-09-21 Werner Wildeboer Absperrvorrichtung gegen Brandübertragung in Lüftungsleitungen
FR2741271A1 (fr) * 1995-11-17 1997-05-23 Constantin Pierre Clapet coupe-feu
EP2239015A1 (de) * 2009-04-09 2010-10-13 Vraco SAS Brandschutzklappe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4678245A1 (de) 2024-07-08 2026-01-14 Soletanche Freyssinet Bidirektionales brandschutz-absperrventil mit versetzter achse

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2258308A1 (de) * 1972-11-29 1974-05-30 Luefa Werke Gmbh Feuerschutzklappe fuer lueftungs- und klimaanlagen
AT324631B (de) * 1972-10-04 1975-09-10 Wukovich Ohg Peter Brandschütz- und rauchgasklappe
FR2520834A1 (fr) * 1982-02-04 1983-08-05 Vraco Systemes Dispositif d'etancheite et d'isolation au feu destine a une vanne d'obturation dite " a papillon "
DE3441971A1 (de) 1984-11-16 1986-05-22 Sanbloc GmbH Installations-Fertigbau, 8120 Weilheim Brandschutzvorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT324631B (de) * 1972-10-04 1975-09-10 Wukovich Ohg Peter Brandschütz- und rauchgasklappe
DE2258308A1 (de) * 1972-11-29 1974-05-30 Luefa Werke Gmbh Feuerschutzklappe fuer lueftungs- und klimaanlagen
FR2520834A1 (fr) * 1982-02-04 1983-08-05 Vraco Systemes Dispositif d'etancheite et d'isolation au feu destine a une vanne d'obturation dite " a papillon "
DE3441971A1 (de) 1984-11-16 1986-05-22 Sanbloc GmbH Installations-Fertigbau, 8120 Weilheim Brandschutzvorrichtung

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4409088A1 (de) * 1994-03-17 1995-09-21 Werner Wildeboer Absperrvorrichtung gegen Brandübertragung in Lüftungsleitungen
FR2741271A1 (fr) * 1995-11-17 1997-05-23 Constantin Pierre Clapet coupe-feu
EP2239015A1 (de) * 2009-04-09 2010-10-13 Vraco SAS Brandschutzklappe
WO2010116065A1 (fr) * 2009-04-09 2010-10-14 Vraco Sas Clapet coupe-feu
FR2944212A1 (fr) * 2009-04-09 2010-10-15 Vraco Sas Clapet coupe-feu
CN102369043A (zh) * 2009-04-09 2012-03-07 维拉可公司 防火阀
CN102369043B (zh) * 2009-04-09 2014-01-08 维拉可公司 防火阀
US9433810B2 (en) 2009-04-09 2016-09-06 Vraco Sas Fire valve

Also Published As

Publication number Publication date
FR2691636A1 (fr) 1993-12-03
FR2691636B1 (fr) 1994-07-29

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