WO2015140463A1 - Improvements to fire valves and smoke shutters - Google Patents

Improvements to fire valves and smoke shutters Download PDF

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Publication number
WO2015140463A1
WO2015140463A1 PCT/FR2015/050649 FR2015050649W WO2015140463A1 WO 2015140463 A1 WO2015140463 A1 WO 2015140463A1 FR 2015050649 W FR2015050649 W FR 2015050649W WO 2015140463 A1 WO2015140463 A1 WO 2015140463A1
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WIPO (PCT)
Prior art keywords
fire
shutter
smoke
element according
smoke evacuation
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PCT/FR2015/050649
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French (fr)
Inventor
Dominique LOURDEL
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Concepts Et Developpements En Protection Incendie
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Publication of WO2015140463A1 publication Critical patent/WO2015140463A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/222—Shaping of the valve member
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
    • C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass

Definitions

  • the present invention relates to equipment intended to ensure the proper functioning of fire protection systems, such as in particular the fire dampers and smoke evacuation flaps. It relates more particularly to fire dampers and smoke extraction dampers made of a material that makes it possible to significantly reduce the weight of the structure and the shutter blades that constitute them.
  • ducts which are intended to evacuate to the outside of it the hot fumes which are released during a fire in order to facilitate the evacuation of the occupants, to limit the spread of smoke. fire and to provide firefighters with access to the premises.
  • smoke evacuation ducts are usually made from slabs or panels made of a refractory material, which are cut to the desired dimensions that depend on the characteristics of the building in which these ducts are installed.
  • These ducts are provided with front entrance inlets and outlet means on the roof of the building. These mouths are closed by smoke extraction flaps that open when a fire is declared.
  • the buildings are also provided with ventilation ducts that allow to control and ensure a good air circulation necessary for the comfort of their inhabitants.
  • the fire dampers and the smoke dampers are formed of steel frames of a shape corresponding to those of the ducts in which they are arranged, either circular or rectangular, which are provided with a closing blade pivotally mounted to the interior thereof and which is able, under the action of control means, usually automatic, to occupy an open position and a closed position.
  • the object of the present invention is to provide the closing blades of the fire dampers and the smoke extraction flaps as well as the supporting structure of these elements in a material whose weight is much lower than that of the blades used up to the present. , and this while satisfying the standards and fire resistance requirements imposed in this area.
  • the subject of the present invention is thus a shut-off element for a fire protection device and in particular for fire dampers and smoke extraction dampers, characterized in that it consists of a silico-calcareous material of which the Allotropic form is of amorphous type.
  • This shutter element may preferably consist of a shutter blade of a fire damper or a smoke evacuation flap.
  • it can also be constituted by a structure carrying a shutter blade of a fire damper or a smoke evacuation flap.
  • this silico-limestone material will comprise between 30 and 60% of SiO 2 and between 30 and 60% of CaO and preferably 45% of the latter.
  • the density of this material may be between 230 and 300 Kg / m 3 and preferably close to 250 Kg / m 3 .
  • the present invention also relates to a fire protection device, in particular for fire dampers and smoke evacuation flaps, characterized in that it comprises at least one closure element as described above.
  • a fire protection device in particular for fire dampers and smoke evacuation flaps, characterized in that it comprises at least one closure element as described above.
  • FIG. 1 is a schematic sectional view of a building equipped with fire-fighting means comprising shutter elements for fire protection devices according to the invention
  • FIG 2a is a side view of a smoke extraction duct equipped with a smoke extraction flap according to the invention
  • FIG. 2b is a sectional view of the smoke evacuation damper shown in FIG. 2a along a line II-II thereof,
  • FIG. 3 is a side view of a smoke evacuation flap disposed on a smoke extraction duct
  • FIG. 4 is a diametrical and transverse sectional view of the smoke evacuation damper shown in FIG. 3 along a line IV-IV thereof,
  • FIG. 1 shows schematically a building 1 provided with three levels forming three premises
  • the smoke evacuation flaps 5a, 5b consist, as shown in the figures, of a parallelepiped-shaped steel structure frame 9 which is provided with a butterfly-type damper which comprises a shutter blade 11 which is pivotally mounted. around an axis of rotation 13.
  • This shutter blade is actuated by servo-control means 15 which are controlled by means remote control 17 so that it can be positioned in a closed position in which it ensures the closure of the admission of air inside the column 7a / 7b, as shown in FIGS 2a and 2b, and an open position in which it allows the admission of air in this column.
  • the blade 11 of the smoke evacuation flaps 5a, 5b In the normal position, that is to say the current operating position without fire, the blade 11 of the smoke evacuation flaps 5a, 5b, is in the closed position and, when a fire is declared 8, the detection and control means engage its opening.
  • the structural frame 9 ensuring the support of the shutter blades 11 may also be made of a silico-calcareous material, of the same type as that used for the realization of the shutter shutters.
  • Such a material is essentially composed of silica (S1O 2) and lime (CaO).
  • silica S1O 2
  • lime CaO
  • the material may also comprise adjuvants such as alumina (Al 2 O 3) in a proportion of about 0.3%, iron oxide (Fe 2 O 3) in a proportion of about 0.3%, magnesia (MgO) in a proportion of about 0.6%, and potassium oxide (K 2 0) in a proportion of about 0.1%.
  • the density of such a material is of the order of 250 Kg / m 3 , which represents approximately 50% of the mass volume of the material used previously to produce such blades, and which was made of a silico-limestone material of crystalline type allotropic variety.
  • conduits whose cross section may take various forms.
  • These ducts can thus be cylindrical in shape with a circular base, and the smoke evacuation damper may then also be of cylindrical shape, as shown in FIGS. 3 and 4, on which the sealing blade 11 is shown in the closed position.
  • the smoke extraction flap is shown in FIGS. 3 and 4, on which the sealing blade 11 is shown in the closed position.
  • 5b can be disposed between two elements 19a and 19b of a pipe.
  • the present invention is not only applicable to smoke exhaust ducts, but may also be used for any fire suppression device employing a damper system. It is thus particularly interesting to constitute fire dampers. Indeed, it is understood that in case of fire, it is essential to ensure the closure of the ventilation ducts to prevent the spread of fire throughout the building. This is why these ducts are equipped with a fire damper which is also constituted by a frame structure that can be either metallic or made of a silico-c a 1 caire material according to the invention, which supports a register whose The shutter blade, which is normally in the open position, comprises means capable of closing it when a fire is detected. According to the invention this shutter blade can also be made of a silicone material according to the invention.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Air-Flow Control Members (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Building Environments (AREA)

Abstract

The present invention relates to a shut-off element (11) for a fire protection device and notably for fire valves and smoke shutters. This shut-off element is characterized in that it is made from a sand-lime material, the allotropic form of which is of amorphous type.

Description

PERFECTIONNEMENTS AUX CLAPETS COUPE-FEU ET AUX VOLETS DE IMPROVEMENTS IN FIRE CHECKERS AND SHUTTERS
DESENFUMAGE  SMOKE
La présente invention concerne les équipements destinés à assurer le bon fonctionnement des systèmes de protection incendie, tels que notamment les clapets coupe-feu et les volets de désenfumage. Elle concerne plus particulièrement des clapets coupe-feu et des volets de désenfumage constitués d'un matériau permettant de diminuer de façon conséquente le poids de la structure et des lamelles d'obturation qui les constituent. The present invention relates to equipment intended to ensure the proper functioning of fire protection systems, such as in particular the fire dampers and smoke evacuation flaps. It relates more particularly to fire dampers and smoke extraction dampers made of a material that makes it possible to significantly reduce the weight of the structure and the shutter blades that constitute them.
On sait que les bâtiments sont pourvus de conduits de désenfumage qui sont destinés à évacuer vers l'extérieur de celui-ci les fumées chaudes qui se dégagent lors d'un incendie afin de faciliter l'évacuation des occupants, de limiter la propagation de l'incendie et de favoriser l'accès des locaux aux pompiers. De tels conduits sont habituellement constitués à partir de dalles ou panneaux réalisés dans un matériau réfractaire, qui sont taillés aux dimensions souhaitées qui dépendent des caractéristiques du bâtiment dans lesquels ces conduits sont installés. Ces conduits sont pourvus de bouches d'entrée en façade et de moyens de sortie en toiture du bâtiment. Ces bouches sont obturées par des volets de désenfumage qui s'ouvrent lors de la déclaration d'un incendie.  It is known that the buildings are equipped with smoke evacuation ducts which are intended to evacuate to the outside of it the hot fumes which are released during a fire in order to facilitate the evacuation of the occupants, to limit the spread of smoke. fire and to provide firefighters with access to the premises. Such ducts are usually made from slabs or panels made of a refractory material, which are cut to the desired dimensions that depend on the characteristics of the building in which these ducts are installed. These ducts are provided with front entrance inlets and outlet means on the roof of the building. These mouths are closed by smoke extraction flaps that open when a fire is declared.
On sait par ailleurs que les bâtiments sont également pourvus de conduits de ventilation qui permettent de contrôler et d'assurer une bonne circulation de l'air nécessaire au confort de leurs habitants.  It is also known that the buildings are also provided with ventilation ducts that allow to control and ensure a good air circulation necessary for the comfort of their inhabitants.
On comprend, qu'en cas d'incendie, il est impératif d'obturer ces conduits de ventilation afin d'éviter la propagation par ceux-ci des fumées et des gaz chauds à l'intérieur des locaux. Une telle obturation est assurée par des clapets coupe-feu qui sont disposés au droit d'un plancher ou d'un mur. It is understood that in case of fire, it is imperative to close these ventilation ducts to prevent the spread by them of fumes and hot gases inside the premises. Such a filling is ensured by fire dampers which are arranged at the right of a floor or a wall.
Les clapets coupe-feu et les volets de désenfumage sont constitués de cadres en acier de forme correspondante à celles des conduits dans lesquels ils sont disposés, soit de forme circulaire ou rectangulaire, qui sont pourvus d'une lame de fermeture montée pivotante à l'intérieur de celui-ci et qui est en mesure, sous l'action de moyens de commande, habituellement automatiques, d'occuper une position ouverte et une position fermée.  The fire dampers and the smoke dampers are formed of steel frames of a shape corresponding to those of the ducts in which they are arranged, either circular or rectangular, which are provided with a closing blade pivotally mounted to the interior thereof and which is able, under the action of control means, usually automatic, to occupy an open position and a closed position.
De façon à garantir la résistance au feu des clapets coupe-feu et des volets de désenfumage, des normes particulièrement contraignantes ont été émises quant à leur résistance au feu.  In order to guarantee the fire resistance of fire dampers and smoke dampers, particularly stringent standards have been issued for their fire resistance.
Afin de satisfaire à ces normes on a pour habitude de constituer les lames de fermeture de ces éléments ainsi que parfois le cadre associé, de plaques menuisées réalisées dans un matériau silico-calcaire de variété allotropique cristalline .  In order to meet these standards it is customary to form the closing blades of these elements and sometimes the associated framework of carved plates made of a silico-limestone material of crystalline allotropic variety.
Si un tel matériau possède des caractéristiques qui lui permettent de satisfaire aux conditions de résistance au feu et aux normes en vigueur, il présente cependant l'inconvénient de posséder une masse volumique importante, de l'ordre de 500 Kg/m3, si bien que les lames de fermeture des clapets coupe-feu et des volets de ventilation sont d'un poids conséquent ce qui a pour effet de contraindre les concepteurs de ces dispositifs à les pourvoir d'organes de commande appropriés qui sont particulièrement lourds, complexes, onéreux et difficiles à mettre en oeuvre. If such a material has characteristics that allow it to meet the requirements of fire resistance and the standards in force, it nevertheless has the disadvantage of having a high density, of the order of 500 Kg / m 3 , although that the closing blades fire dampers and ventilation flaps are of significant weight which has the effect of forcing the designers of these devices to provide appropriate control organs that are particularly heavy, complex, expensive and difficult to implement.
La présente invention a pour but de proposer de réaliser les lames de fermeture des clapets coupe-feu et des volets de désenfumage ainsi que la structure porteuse de ces éléments en un matériau dont le poids est très inférieur à celui des lames utilisées jusqu'à présent, et ceci tout en satisfaisant aux normes et aux conditions de résistance au feu imposés dans ce domaine. The object of the present invention is to provide the closing blades of the fire dampers and the smoke extraction flaps as well as the supporting structure of these elements in a material whose weight is much lower than that of the blades used up to the present. , and this while satisfying the standards and fire resistance requirements imposed in this area.
La présente invention a ainsi pour objet un élément d'obturation pour dispositif de protection incendie et notamment pour des clapets coupe-feu et des volets de désenfumage, caractérisé en ce qu'il est constitué à partir d'un matériau silico-calcaire dont la forme allotropique est de type amorphe.  The subject of the present invention is thus a shut-off element for a fire protection device and in particular for fire dampers and smoke extraction dampers, characterized in that it consists of a silico-calcareous material of which the Allotropic form is of amorphous type.
Cet élément d' obturation peut être préférentiellement constitué par une lame d'obturation d'un clapet coupe-feu ou par un volet de désenfumage.  This shutter element may preferably consist of a shutter blade of a fire damper or a smoke evacuation flap.
Suivant l'invention il peut également être constitué par une structure porteuse d'une lame d'obturation d'un clapet coupe-feu ou d'un volet de désenfumage.  According to the invention it can also be constituted by a structure carrying a shutter blade of a fire damper or a smoke evacuation flap.
Préférentiellement ce matériau silico-calcaire comprendra entre 30 et 60% de S1O2 et entre 30 et 60% de CaO et préférentiellement 45% de ce dernier. Preferably, this silico-limestone material will comprise between 30 and 60% of SiO 2 and between 30 and 60% of CaO and preferably 45% of the latter.
Il pourra également avantageusement comprendre entre 0,1 et 0,5 % de AI2O3 et préférentiellement 0,3 % et /ou entre 0,1 et 0,5 % de Fe2Û3 et préférentiellement 0,3% et/ou entre 0,4 et 0,8 % de MgO et préférentiellement 0,6% et/ou entre 0,08 et 0,12 % de K20 et préférentiellement 0,1% et/ou entre 0,08 et 0,12 % de a2Û et préférentiellement 0,1%. It may also advantageously comprise between 0.1 and 0.5% Al 2 O 3 and preferably 0.3% and / or between 0.1 and 0.5% Fe 2 Û 3 and preferably 0.3% and / or between 0.4 and 0.8% of MgO and preferably 0.6% and / or between 0.08 and 0.12% of K 2 0 and preferentially 0.1% and / or between 0.08 and 0, 12% of a 2 % and preferably 0.1%.
Par ailleurs la masse volumique de ce matériau pourra être comprise entre 230 et 300 Kg/m3 et préférentiellement voisine de 250 Kg/m3. Moreover, the density of this material may be between 230 and 300 Kg / m 3 and preferably close to 250 Kg / m 3 .
La présente invention a également pour objet un dispositif de protection incendie, notamment pour clapets coupe-feu et volets de désenfumage, caractérisé en ce qu'il comporte au moins un élément d'obturation tel que décrit précédemment . On décrira ci-après, à titre d'exemple non limitatif, des formes d'exécution de la présente invention, en référence au dessin annexé sur lequel : The present invention also relates to a fire protection device, in particular for fire dampers and smoke evacuation flaps, characterized in that it comprises at least one closure element as described above. Hereinafter, by way of nonlimiting example, embodiments of the present invention will be described with reference to the appended drawing in which:
- la figure 1 est une vue schématique en coupe d'un bâtiment équipé de moyens de lutte contre l'incendie comprenant des éléments d' obturation pour dispositifs de protection incendie suivant l'invention,  - Figure 1 is a schematic sectional view of a building equipped with fire-fighting means comprising shutter elements for fire protection devices according to the invention,
-la figure 2a est une vue de côté d'un conduit de désenfumage équipé d'un volet de désenfumage suivant 1 ' invention,  FIG 2a is a side view of a smoke extraction duct equipped with a smoke extraction flap according to the invention,
la figure 2b est une vue en coupe du volet de désenfumage représenté sur la figure 2a suivant une ligne II-II de celle-ci,  FIG. 2b is a sectional view of the smoke evacuation damper shown in FIG. 2a along a line II-II thereof,
la figure 3 est une vue de côté d'un volet de désenfumage disposé sur une conduite de désenfumage,  FIG. 3 is a side view of a smoke evacuation flap disposed on a smoke extraction duct,
la figure 4 est une vue en coupe diamétrale et transversale du volet de désenfumage représenté sur la figure 3 suivant une ligne IV-IV de celle-ci,  FIG. 4 is a diametrical and transverse sectional view of the smoke evacuation damper shown in FIG. 3 along a line IV-IV thereof,
On a représenté sous forme schématique sur la figure 1 un bâtiment 1 pourvu de trois niveaux formant trois locaux FIG. 1 shows schematically a building 1 provided with three levels forming three premises
3a, 3b, 3c séparés par un plancher 4, qui sont pourvus chacun de deux volets de désenfumage, à savoir un volet d'admission 5a en mesure d'admettre dans chaque local un flux d'air via une colonne d'admission 7a et un volet d'évacuation 5b en mesure d'aspirer cet air avec les fumées éventuelles générées par un feu 8 pour évacuer celles-ci vers l'extérieur par une colonne d'évacuation 7b. 3a, 3b, 3c separated by a floor 4, which are each provided with two smoke extraction flaps, namely an intake flap 5a able to admit in each room a flow of air via an intake column 7a and an evacuation flap 5b able to suck this air with the possible fumes generated by a fire 8 to evacuate these outwards by a discharge column 7b.
Les volets de désenfumage 5a, 5b sont constitués, ainsi que représenté sur les figures, d'un cadre structure 9 en acier de forme parallélépipédique qui est pourvu d'un registre de type papillon qui comporte une lame d'obturation 11 qui est montée pivotante autour d'un axe de rotation 13. Cette lame d'obturation est actionnée par des moyens d'asservissement 15 qui sont pilotés par des moyens de commande à distance 17 de sorte que l'on peut la positionner dans une position fermée dans laquelle elle assure l'obturation de l'admission de l'air à l'intérieur de la colonne 7a/7b, ainsi que représenté sur les figures 2a et 2b, et une position ouverte dans laquelle elle autorise l'admission de l'air dans cette colonne. The smoke evacuation flaps 5a, 5b consist, as shown in the figures, of a parallelepiped-shaped steel structure frame 9 which is provided with a butterfly-type damper which comprises a shutter blade 11 which is pivotally mounted. around an axis of rotation 13. This shutter blade is actuated by servo-control means 15 which are controlled by means remote control 17 so that it can be positioned in a closed position in which it ensures the closure of the admission of air inside the column 7a / 7b, as shown in FIGS 2a and 2b, and an open position in which it allows the admission of air in this column.
En position normale, c'est-à-dire la position de fonctionnement courant sans incendie, la lame 11 des volets de désenfumage 5a, 5b, se trouve en position d'obturation et, lors de la déclaration d'un incendie 8, les moyens de détection et de commande enclenchent son ouverture.  In the normal position, that is to say the current operating position without fire, the blade 11 of the smoke evacuation flaps 5a, 5b, is in the closed position and, when a fire is declared 8, the detection and control means engage its opening.
On a constaté qu'en réalisant la lame 11 des volets de désenfumage en un matériau silico-calcaire dont la variété allotropique est de type amorphe on était en mesure de satisfaire aux conditions de résistance au feu imposées par les normes en la matière tout en obtenant une lame particulièrement légère.  It has been found that by realizing the blade 11 of the smoke extraction flaps made of a silico-limestone material whose allotropic variety is of amorphous type, it was possible to satisfy the fire resistance conditions imposed by the standards in the matter while obtaining a particularly light blade.
Suivant l'invention le cadre structure 9 assurant le support des lames d'obturation 11 peut également être constitué d'un matériau silico-calcaire, du même type que celui utilisé pour la réalisation des volets d'obturation.  According to the invention the structural frame 9 ensuring the support of the shutter blades 11 may also be made of a silico-calcareous material, of the same type as that used for the realization of the shutter shutters.
Un tel matériau est essentiellement composé de silice (S1O2) et de chaux (CaO) . Ainsi la proportion de silice pourra être comprise entre 30 et 60 % et préférentiellement voisine de 47 %. De même la proportion de chaux pourra être comprise entre 30 et 60 % et préférentiellement voisine de 45 %. Le matériau pourra également comprendre des adjuvants tels que de l'alumine (AI2O3) dans une proportion voisine de 0,3 %, de l'oxyde de fer (Fe203) dans une proportion voisine de 0,3 %, de la magnésie (MgO) dans une proportion voisine de 0,6 %, et de l'oxyde de potassium (K20) dans une proportion voisine de 0,1 %. Such a material is essentially composed of silica (S1O 2) and lime (CaO). Thus the proportion of silica may be between 30 and 60% and preferably close to 47%. Similarly, the proportion of lime may be between 30 and 60% and preferably close to 45%. The material may also comprise adjuvants such as alumina (Al 2 O 3) in a proportion of about 0.3%, iron oxide (Fe 2 O 3) in a proportion of about 0.3%, magnesia (MgO) in a proportion of about 0.6%, and potassium oxide (K 2 0) in a proportion of about 0.1%.
La masse volumique d'un tel matériau est de l'ordre de 250 Kg/m3 ce qui représente environ 50% de la masse volumique du matériau utilisé précédemment pour réaliser de telles lames, et qui était constitué d'un matériau silico- calcaire de variété allotropique de type cristalline. The density of such a material is of the order of 250 Kg / m 3 , which represents approximately 50% of the mass volume of the material used previously to produce such blades, and which was made of a silico-limestone material of crystalline type allotropic variety.
On comprend qu'une telle diminution du poids du matériau est particulièrement intéressante dans la mesure où cette diminution du poids de la lame d'obturation permet de réaliser des mécanismes d'entraînement de celle-ci qui sont d'une constitution moins résistante voire d'une conception plus simple ce qui se traduit par une diminution du coût de fabrication. Elle entraîne également, lorsque la structure porteuse des volets de désenfumage est constituée d'un élément silico-calcaire suivant l'invention, une diminution importante du poids de l'ensemble du volet ce qui facilite la fabrication, la mise en place et le transport de celui-ci et qui permet de diminuer encore le coût de la réalisation.  It is understood that such a reduction in the weight of the material is particularly advantageous insofar as this reduction in the weight of the sealing blade makes it possible to achieve drive mechanisms thereof which are of a constitution less resistant or even 'a simpler design which results in a decrease in manufacturing cost. It also causes, when the structure carrying the smoke extraction flaps is made of a silico-limestone element according to the invention, a significant reduction in the weight of the entire flap which facilitates the manufacture, installation and transport of this one and which makes it possible to further reduce the cost of the realization.
Bien entendu la présente invention peut être mise en œuvre en coopération avec des conduits dont la section droite peut revêtir des formes diverses. Ces conduits peuvent être ainsi de forme cylindrique à base circulaire, et le registre de désenfumage pourra alors, être également de forme cylindrique, ainsi que représenté sur les figure 3 et 4 sur lesquelles la lame d'obturation 11 est représentée en position de fermeture. Par ailleurs, et ainsi que représenté sur les figures 3 et 4, le volet de désenfumage Naturally, the present invention may be implemented in cooperation with conduits whose cross section may take various forms. These ducts can thus be cylindrical in shape with a circular base, and the smoke evacuation damper may then also be of cylindrical shape, as shown in FIGS. 3 and 4, on which the sealing blade 11 is shown in the closed position. Moreover, and as shown in FIGS. 3 and 4, the smoke extraction flap
5b peut être disposé entre deux éléments 19a et 19b d'une canalisation . 5b can be disposed between two elements 19a and 19b of a pipe.
La présente invention est non seulement applicable aux conduits de désenfumage, mais elle peut également être utilisée pour tout dispositif anti incendie faisant appel à un système de registre. Elle se révèle ainsi particulièrement intéressante pour constituer des clapets coupe-feu . En effet on comprend, qu'en cas d'incendie, il est essentiel d'assurer la fermeture des conduits d'aération afin d'éviter la propagation du feu à travers l'ensemble du bâtiment. C'est pourquoi ces conduits sont équipés d'un clapet coupe-feu qui est lui aussi constitué d'un cadre structure pouvant être soit métallique soit en un matériau silico-c a 1 c a i r e suivant l'invention, qui supporte un registre dont la lame d' obturation, qui est normalement en position d'ouverture, comporte des moyens aptes à assurer sa fermeture lorsqu'un incendie est détecté. Suivant l'invention cette lame d'obturation peut également être réalisée en un matériau silico-c a 1 ca i re suivant 1 ' invention . The present invention is not only applicable to smoke exhaust ducts, but may also be used for any fire suppression device employing a damper system. It is thus particularly interesting to constitute fire dampers. Indeed, it is understood that in case of fire, it is essential to ensure the closure of the ventilation ducts to prevent the spread of fire throughout the building. This is why these ducts are equipped with a fire damper which is also constituted by a frame structure that can be either metallic or made of a silico-c a 1 caire material according to the invention, which supports a register whose The shutter blade, which is normally in the open position, comprises means capable of closing it when a fire is detected. According to the invention this shutter blade can also be made of a silicone material according to the invention.

Claims

REVENDICATIONS
1. - Elément d'obturation pour dispositif de protection incendie et notamment pour des clapets coupe-feu et des volets de désenfumage, caractérisé en ce qu'il est constitué à partir d'un matériau silico-calcaire dont la forme allotropique est de type amorphe. 1. - Shutter element for fire protection device and in particular for fire dampers and smoke evacuation shutters, characterized in that it consists of a silico-limestone material whose allotropic form is of type amorphous.
2. - Elément d'obturation suivant la revendication 1 caractérisé en ce qu'il est constitué d'une lame d'obturation d'un clapet coupe-feu ou d'un volet de désenfumage .  2. - shutter element according to claim 1 characterized in that it consists of a shutter blade of a fire damper or a smoke evacuation flap.
3. - Elément d' obturation suivant l' une des revendications 1 ou 2 caractérisé en ce qu'il est constitué par une structure porteuse d'une lame d'obturation d'un clapet coupe-feu ou d'un volet de désenfumage.  3. - shutter element according to one of claims 1 or 2 characterized in that it is constituted by a bearing structure of a shutter blade of a fire damper or a smoke evacuation flap.
4. - Elément d'obturation suivant l' une des revendications précédentes caractérisé en ce que le matériau silico-calcaire comprend entre 30 et 60% de S1O2 et préférentiellement 45%, et entre 30 et 60% de CaO et préférentiellement 45% de ce dernier. 4. - shutter element according to one of the preceding claims characterized in that the silico-calcareous material comprises between 30 and 60% of S1O 2 and preferably 45%, and between 30 and 60% of CaO and preferably 45% of this last.
5. - Elément d'obturation suivant l'une des revendications précédentes caractérisé en ce qu' il comprend entre 0,1 et 0,5 % de AI2O3 et préférentiellement 0,3%. 5. - shutter element according to one of the preceding claims characterized in that it comprises between 0.1 and 0.5% of Al 2 O 3 and preferably 0.3%.
6.- Elément d'obturation suivant l'une des revendications précédentes caractérisé en ce qu'il comprend entre 0,1 et 0,5 % de Fe2Û3 et préférentiellement 0,3%. 6.- sealing member according to one of the preceding claims characterized in that it comprises between 0.1 and 0.5% Fe 2 Û 3 and preferably 0.3%.
7. - Elément d'obturation suivant l'une des revendications précédentes caractérisé en ce qu'il comprend entre 0,4 et 0,8 % de MgO et préférentiellement 0,6%.  7. - shutter member according to one of the preceding claims characterized in that it comprises between 0.4 and 0.8% MgO and preferably 0.6%.
8. - Elément d'obturation suivant l'une des revendications précédentes caractérisé en ce qu'il comprend entre 0,08 et 0,12 % de K2O et préférentiellement 0,1%. 8. - shutter member according to one of the preceding claims characterized in that it comprises between 0.08 and 0.12% of K 2 O and preferably 0.1%.
9. - Elément d'obturation suivant l'une des revendications précédentes caractérisé en ce qu'il comprend entre 0,08 et 0,12 % de Na2<0 et préférentiellement 0,1%. 9. - Shutter element according to one of preceding claims characterized in that it comprises between 0.08 and 0.12% of Na 2 <0 and preferably 0.1%.
10. - Elément d'obturation suivant l'une des revendications précédentes caractérisé en ce que sa masse volumique est comprise entre 230 et 300 Kg/m3 et est préférentiellement voisine de 250 Kg/m3. 10. - next Shutter element according to one of the preceding claims characterized in that its density is between 230 and 300 Kg / m 3 and is preferably close to 250 Kg / m 3.
11. - Dispositif de protection incendie, notamment pour clapets coupe-feu et volets de désenfumage, caractérisé en ce qu'il comporte au moins un élément d'obturation suivant l'une des revendications 1 à 10.  11. - Fire protection device, in particular for fire dampers and smoke evacuation flaps, characterized in that it comprises at least one closure element according to one of claims 1 to 10.
PCT/FR2015/050649 2014-03-19 2015-03-17 Improvements to fire valves and smoke shutters WO2015140463A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1400650 2014-03-19
FR1400650A FR3018891B1 (en) 2014-03-19 2014-03-19 FIRE STOPPERS AND SHUTTERS

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WO2015140463A1 true WO2015140463A1 (en) 2015-09-24

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010775A (en) * 1975-01-15 1977-03-08 Consolidated Controls Corporation High temperature valve
US4380246A (en) * 1981-03-20 1983-04-19 Dayco Corporation Butterfly valve and method of making same
JP2000281423A (en) * 1999-03-31 2000-10-10 Kenzai Gijutsu Kenkyusho:Kk Calcium silicate molded form and its production
EP2239015A1 (en) * 2009-04-09 2010-10-13 Vraco SAS Fire valve
FR2982495A1 (en) * 2011-11-10 2013-05-17 Atlantic Climatisation Et Ventilation Fire protection device e.g. fire damper, for closing ventilation duct, has blade including side edges having curved portion whose distance relative to pivot axis varies such that blade gradually closes passage during pivoting of blade

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010775A (en) * 1975-01-15 1977-03-08 Consolidated Controls Corporation High temperature valve
US4380246A (en) * 1981-03-20 1983-04-19 Dayco Corporation Butterfly valve and method of making same
JP2000281423A (en) * 1999-03-31 2000-10-10 Kenzai Gijutsu Kenkyusho:Kk Calcium silicate molded form and its production
EP2239015A1 (en) * 2009-04-09 2010-10-13 Vraco SAS Fire valve
FR2982495A1 (en) * 2011-11-10 2013-05-17 Atlantic Climatisation Et Ventilation Fire protection device e.g. fire damper, for closing ventilation duct, has blade including side edges having curved portion whose distance relative to pivot axis varies such that blade gradually closes passage during pivoting of blade

Also Published As

Publication number Publication date
FR3018891A1 (en) 2015-09-25
FR3018891B1 (en) 2016-06-24

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