EP3260173A1 - Élement ignifuge - Google Patents

Élement ignifuge Download PDF

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Publication number
EP3260173A1
EP3260173A1 EP16176103.6A EP16176103A EP3260173A1 EP 3260173 A1 EP3260173 A1 EP 3260173A1 EP 16176103 A EP16176103 A EP 16176103A EP 3260173 A1 EP3260173 A1 EP 3260173A1
Authority
EP
European Patent Office
Prior art keywords
fire protection
intumescent material
protection element
core
fire
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Withdrawn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
EP16176103.6A
Other languages
German (de)
English (en)
Inventor
Herbert Münzenberger
Andreas OBER
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Priority to EP16176103.6A priority Critical patent/EP3260173A1/fr
Publication of EP3260173A1 publication Critical patent/EP3260173A1/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Withdrawn legal-status Critical Current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
    • A62C2/065—Physical fire-barriers having as the main closure device materials, whose characteristics undergo an irreversible change under high temperatures, e.g. intumescent

Definitions

  • the invention relates to a fire protection element for partitioning passing through walls or ceilings openings, with a core of intumescent material and a shell element.
  • Fire protection elements that can close cable ducts with non-refractory pipes or cables in ceilings or walls in case of fire to prevent the spread of fire and smoke in buildings, are known in various designs.
  • the fire protection elements typically include an intumescent material disposed about the leads and a reinforcing insert that stabilizes the intumescent material and prevents or delays the loss of the protective ash crust in the event of a fire.
  • such a fire protection element is shown made of an intumescent material having a lattice-shaped support member as a reinforcing insert to keep the ash crust resulting from fire as stable as possible on the fire protection element.
  • the reinforcing inserts contribute to the stability of the ash crust
  • the intumescent material without direction, ie spread in all directions.
  • the resulting pressures can deform the fire protection device and lead to impairment of the fire protection properties.
  • the intumescent material spreads in the direction of least resistance, thereby transporting the material into unfavorable areas.
  • the intumescent material can be pressed out of the fire protection element on the side facing away from the fire, even if this has a latticed reinforcing insert. This results in a reduction of the fire protection properties, since on the side facing the fire the pushed-out intumescent material is no longer available.
  • the object of the invention is to provide a fire protection element in which the expansion of the intumescent material proceeds in a directed manner.
  • a fire protection element for sealing off openings passing through walls or ceilings, in particular of line passages, with a core of intumescent material and a sheath element, wherein the sheath element is fixedly connected to the core and comprises an opaque fabric.
  • a "opaque tissue” is a tissue whose structure is such that expansion of the intumescent material through the tissue is substantially completely prevented.
  • the term "opaque” makes no statements about the optical properties of the fabric, so that even a transparent fabric within the meaning of the invention is considered opaque, as long as it retains the intumescent material.
  • the sheath element limits the spread of the intumescent material in case of fire and thus makes it possible to direct the expansion of the intumescent material in a desired direction.
  • the use of a fabric provides a good bond between the layer of intumescent material and the fabric, and the shell element retains its stabilizing properties even with isolated structural damage.
  • the sheath element is arranged on the surface of the core of intumescent material. As a result, the sheath element completely shields the intumescent material perpendicular to its surface and can prevent expansion of the intumescent material in this direction.
  • the fire protection element is substantially cuboid and in particular has a substantially cuboid core of intumescent material.
  • This design provides efficient use of space and allows in a simple way the modular design of a firewall of several fire protection elements according to the invention.
  • the fire protection element can be arranged in an opening so that the two open, i. have not covered by the shell element sides of the fire protection element in the direction of the supporting structure, which includes the opening.
  • the outer sides of the firewall are covered by the casing element, whereby the resulting in case of fire Intumeszenzasche can not spread to the outside and is kept in the fire.
  • the sheath element surrounds the core of intumescent material in a circumferential direction, whereby a simple production of the fire protection element is possible.
  • One side of the core of intumescent material may only partially, in particular between 35% and 75%, preferably between 50% and 67%, be covered by the sheath element.
  • the edges of the sheath element are connected on this side with the core of intumescent material, so that they do not protrude or overlap and must be additionally secured. Furthermore, this ensures an efficient use of materials.
  • the sheath element comprises a material from the following group: metal, glass fibers, basalt fibers, carbon fibers or ceramic fibers.
  • a hybrid construction of the casing element made of several materials is also possible. These materials have a higher temperature resistance compared to the intumescent material. This is advantageous because the shell element is thus not affected by the temperature activating the intumescent material and in this way can exert its stabilizing function even in the event of fire.
  • the sheath element is preferably in one piece. This offers the advantage that there are only a few transition areas between different sections of the shell element, in which the intumescent material can escape in case of fire. Furthermore, different sections of the stabilize Shell element in the expansion of the intumescent material each other, so that the structural integrity of the fire protection element is improved by this design.
  • the fire protection element has a reinforcing insert, which is formed in particular by a mat, a grid or a woven fabric and preferably consists of metal, expanded metal, glass fibers, basalt fibers, carbon fibers or ceramic fibers.
  • a hybrid construction of the reinforcing insert made of several materials is also possible. This design of the reinforcing insert ensures a good penetration of the intumescent material and a high temperature resistance.
  • the reinforcing insert serves to stabilize the intumescent crust produced in the event of fire and helps to prevent it from falling off in parts from the fire protection element.
  • FIG. 1 an inventive cuboid fire protection element 10 with a core of intumescent material 12 and a shell element 14 is shown.
  • the core of intumescent material 12 is parallelepiped-shaped and comprises an upper side 16 and a lower side 17 arranged opposite to the upper side 16, two end faces 18, 19 arranged opposite to one another and a front side 20 and a rear side 21 arranged opposite to the front side 20 ,
  • the casing element 14 is mounted in the circumferential direction U on the surface 22 of the cuboid core of intumescent material 12 and covers the bottom 17 and end faces 18, 19 completely.
  • the top 16 is only about two-thirds covered by the sheath element 14, wherein the edges 24, 25 of the sheath member 14 leave a portion 26 of the surface 22 of the core of intumescent material 12 free.
  • edges 24, 25 cover the top 16 approximately equally, so that the portion 26 is located approximately in the center of the top 16.
  • all edges 28 in the circumferential direction U on both sides of the respective edge 28 are covered with a portion of the sheath element 14 which covers at least 10% of the corresponding side. In this way, the particularly endangered by a fire edges are protected and a particularly high stability of the fire protection element is guaranteed.
  • the front 20 and the back 21 are not covered by the sheath member 14, whereby an expansion of the intumescent material is directed in case of fire mainly to these sides.
  • the sheath element 14 is integrally connected to the core of intumescent material 12.
  • the sheath member 14 is a one-piece, opaque fabric and may be made of metal, glass fibers, basalt fibers, carbon fibers and / or ceramic fibers.
  • the fire protection element 10 has a reinforcing insert 30 in the core of intumescent material 12, which is arranged near the bottom 17 and extends parallel to the bottom 17.
  • the reinforcing insert 30 may be a mat, a mesh or a woven fabric and may be made of metal, expanded metal, glass fibers, basalt fibers, carbon fibers or ceramic fibers.
  • FIG. 2 a section of a wall 40 is shown with an opening 42 in which a fire protection element 10 is installed as a firewall.
  • the fire protection element 10 is arranged so that the end faces 18, 19 are aligned substantially parallel to the wall 40 and the remaining sides in the direction of the wall 40 show. In this way, the intumescent material spreads in the event of fire in the direction of the front 20 and the back 21 to the wall 40 out and thus remains in the opening 42, where it is still the firewall available.
  • the fire protection element 10 can also be used in conjunction with other fire protection elements 10 to form a firewall for openings 42, whose cross-section is larger than the end face 18, 19 of the fire protection element 10.
  • a fire barrier of modular design in this way for example, designed as a wall be, in which the fire protection elements 10 form the bricks.
  • the end faces 18, 19 are also arranged substantially parallel to the wall 40.
  • the front sides 20 and rear sides 21 which are not covered by casing elements 14 are aligned with the wall 40 or with adjacent fire protection elements 10 and ensure in the event of fire that the pressure generated by the expanding intumescent material holds the fire protection elements 10 securely in the opening 42.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
EP16176103.6A 2016-06-24 2016-06-24 Élement ignifuge Withdrawn EP3260173A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16176103.6A EP3260173A1 (fr) 2016-06-24 2016-06-24 Élement ignifuge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16176103.6A EP3260173A1 (fr) 2016-06-24 2016-06-24 Élement ignifuge

Publications (1)

Publication Number Publication Date
EP3260173A1 true EP3260173A1 (fr) 2017-12-27

Family

ID=56296516

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16176103.6A Withdrawn EP3260173A1 (fr) 2016-06-24 2016-06-24 Élement ignifuge

Country Status (1)

Country Link
EP (1) EP3260173A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018153659A1 (fr) * 2017-02-22 2018-08-30 Hilti Aktiengesellschaft Élément coupe-feu

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2216220A (en) * 1988-03-03 1989-10-04 Mann Mcgowan Fabrications Ltd Fire damper sleeves
GB2233725A (en) * 1989-07-07 1991-01-16 Arthur Peter Hamilton Fire stop collar for pipe lead-through
WO1999022107A1 (fr) * 1997-10-27 1999-05-06 Lorient Polyproducts Limited Ensemble bande intumescente
DE10003856A1 (de) * 2000-01-28 2001-08-16 Hans Ernst Korte Brandschutzmatte
EP2455135A2 (fr) 2010-11-19 2012-05-23 HILTI Aktiengesellschaft Elément ignifuge
EP2505232A2 (fr) * 2011-03-28 2012-10-03 HILTI Aktiengesellschaft Manchette pare-feu

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2216220A (en) * 1988-03-03 1989-10-04 Mann Mcgowan Fabrications Ltd Fire damper sleeves
GB2233725A (en) * 1989-07-07 1991-01-16 Arthur Peter Hamilton Fire stop collar for pipe lead-through
WO1999022107A1 (fr) * 1997-10-27 1999-05-06 Lorient Polyproducts Limited Ensemble bande intumescente
DE10003856A1 (de) * 2000-01-28 2001-08-16 Hans Ernst Korte Brandschutzmatte
EP2455135A2 (fr) 2010-11-19 2012-05-23 HILTI Aktiengesellschaft Elément ignifuge
EP2505232A2 (fr) * 2011-03-28 2012-10-03 HILTI Aktiengesellschaft Manchette pare-feu

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018153659A1 (fr) * 2017-02-22 2018-08-30 Hilti Aktiengesellschaft Élément coupe-feu

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