EP4540543A1 - Endlosmanschette für ein rohr - Google Patents
Endlosmanschette für ein rohrInfo
- Publication number
- EP4540543A1 EP4540543A1 EP23730070.2A EP23730070A EP4540543A1 EP 4540543 A1 EP4540543 A1 EP 4540543A1 EP 23730070 A EP23730070 A EP 23730070A EP 4540543 A1 EP4540543 A1 EP 4540543A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hybrid material
- endless
- layer
- tube
- cuff
- 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.)
- Pending
Links
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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
- F16L5/04—Sealing to form a firebreak device
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
Definitions
- the present invention relates to an endless sleeve for a pipe.
- Fire protection sleeves are used to provide sealing solutions for pipes, especially plastic pipes, that run through walls. The goal is to close the wall breakthrough through which the pipe is routed in the event of a fire as soon as the melted or burned pipe no longer provides a seal.
- fire protection sleeves have an intumescent material. Intumescent materials have the property of expanding above a certain limit temperature. During expansion, the material foams and then carbonizes, providing a thermal insulating resistant layer. In the event of a fire, the wall opening can be safely closed to prevent the flames from spreading through the wall opening into adjacent rooms.
- Fire protection sleeves are known that have special housing shapes.
- the housing then includes a receiving space for the intumescent material.
- the positioning of the band package of the intumescent material, which is typically designed in multiple layers, within the receiving space involves a relatively large amount of manual work and is therefore complex and cost-intensive.
- the housings typically have complex geometries that also differ from one another depending on the respective pipe diameter. This means that different punching and bending tools are required for production in relation to the different pipe diameters. For the manufacturer, the payback period for these tools is often very long, especially for pipe sizes that are not used frequently. The comparatively small quantities that can be sold on the market often do not justify the investment in such special and therefore cost-intensive tools. Furthermore, due to their geometries, the housings require increased storage space.
- the invention is therefore based on the object of providing a fire protection sleeve by means of which the disadvantages of known fire protection sleeves can be eliminated or at least reduced.
- the respective wall opening should be reliably closed if necessary.
- the requirement for special housing geometries depending on the respective pipe diameter should preferably be avoided as far as possible.
- an endless sleeve for a pipe is provided.
- the endless sleeve is a fire protection sleeve.
- the endless cuff includes a hybrid material, optionally a metal band and several mounting devices.
- the hybrid material comprises at least a first layer and a carrier layer arranged parallel to the first layer and connected flatly.
- the first layer at least partially has an intumescent material.
- the hybrid material is arranged in multiple layers around the tube.
- the optional metal strip can be arranged externally adjacent to the hybrid material in a radial direction of the tube.
- the assembly devices are set up to enclose the hybrid material and optionally the metal strip at least partially along an axial direction of the tube.
- the endless cuff can be fixed to an external holder using the mounting devices.
- the carrier layer has a mesh structure.
- the endless cuff designed in this way advantageously does not require a complex-shaped housing.
- the mesh structure ensures sufficient mechanical stability even in the event of a fire when the intumescent material expands.
- the mesh structure also provides permeability to the intumescent material so that the intumescent material of adjacent layers of the hybrid material can bond together and a direct coupling is possible. This improves the sealing of the opening for the pipe after it has burned or melted.
- the manufacturing process does not require costly punching and bending tools, so that the manufacturing effort is reduced.
- the complex positioning steps when arranging the intumescent material in a receiving space of a housing are no longer necessary. Another aspect is that the storage space required is reduced by avoiding complex housing geometries.
- hybrid material Only one continuous component (hybrid material) needs to be produced and procured, regardless of the respective pipe diameter.
- the installer simply cuts the correct length of the endless sleeve, i.e. the hybrid material and possibly the metal strip, depending on the respective pipe diameter and then installs the endless sleeve.
- a hybrid material is to be understood as meaning a material that has at least two different material components.
- the various material components in the hybrid material are arranged in parallel layers.
- the hybrid material is arranged in multiple layers around the pipe. This means that the hybrid material is passed around the pipe several times.
- the number of layers of the hybrid material generally depends on the pipe diameter and therefore the size of the wall opening. Therefore, in the usage situation, the hybrid material is present at least in two layers around the pipe.
- the hybrid material can have at least two, preferably between four and seven layers in the usage situation.
- the metal band which can be arranged radially on the outside of the hybrid material with respect to the center of the pipe, and thus the endless sleeve, forces the intumescent material towards the center in the event of a fire when it expands. This allows the sealing of the opening for the pipe to be improved.
- the mounting devices essentially ensure the correct positioning of the endless sleeve with respect to the opening for the pipe. Furthermore, they prevent a relative movement of the endless sleeve with respect to the pipe.
- enclosing is to be understood as meaning that the mounting devices surround the hybrid material at least in a form-fitting manner, in particular also in a frictional and/or force-fitting manner, in such a way that the hybrid material is thereby fixed in its relative position with respect to the external receptacle and the tube.
- the mounting device can have a clamp connection or a hook connection for fixing the hybrid material.
- the external mount is generally the structure that has the opening for the pipe.
- the carrier layer has a glass fiber material and/or aluminum material. Fiberglass or metal wire mesh or a composite of both are also preferred. Such materials are well suited to ensuring sufficient mechanical stability even in the event of a fire.
- the hybrid material comprises a fabric.
- at least the carrier layer can have a fabric.
- Fabric structures can be produced in an industrially standardized manner, so that the manufacturing effort is low. Nevertheless, they ensure a high level of mechanical stability. Therefore, fabric structures are well suited to absorb and resist the intumescent forces of the intumescent material that expands in the event of a fire.
- the mesh structure has a diamond mesh structure or a rectangular mesh structure.
- the mesh structure has essentially uniform mesh openings with a first and a second edge length.
- the first and second edge lengths are at least 2 mm and up to 10 mm.
- the first and second edge lengths are preferably at least 3 mm and up to 6 mm. More preferably, the first and second edge lengths are at least 3.5 mm and up to 4 mm.
- the intumescent material has graphite particles.
- a particle size of the graphite particles can essentially be 0.4 mm.
- the particle size has proven to be particularly suitable in relation to the edge lengths of the mesh openings. This ensures that the graphite particles of the intumescent material can pass through the mesh openings, allowing adjacent layers of the hybrid material to be coupled in the event of a fire.
- the hybrid material preferably further comprises a third layer, which is arranged parallel to the carrier layer and is connected to it flatly.
- the third layer can have a film made of a plastic material.
- the third layer enables simplified manufacturing because the hybrid material can be transported and processed in the manufacturing facility based on the third layer. This avoids, for example, that the carrier layer arranged on the third layer or the layer of intumescent material is damaged during processing.
- the mounting devices can have at least one hook portion and one finger portion.
- the finger section can be arranged on the inside adjacent to the hybrid material in the radial direction of the tube.
- the hook section can be arranged at least partially on the outside in the radial direction of the tube, possibly adjacent to the metal strip. This ensures a simple but effective enclosure of the hybrid material and, if necessary, the metal strip relative to the pipe.
- the mounting device thus enables positional accuracy of the hybrid material with respect to the tube and the external receptacle.
- the hook section can preferably have at least one eyelet, an elongated hole or a corresponding section, by means of which the respective mounting device can be fixed to the external receptacle, and which provides at least one degree of freedom with regard to the positioning.
- the finger sections are preferably bendable at least between a first and a second orientation direction.
- the first direction of orientation is in Aligned substantially parallel to the axial direction of the tube.
- the second orientation direction is arranged substantially along the radial direction of the tube.
- the hybrid material of the endless cuff can thus initially be enclosed in the axial direction by the finger section. If the pipe melts or burns, the finger section bends towards the center of the pipe or the endless sleeve due to the intumescence, so that the intumescent material can continue to occupy the freed up radially inner space in order to seal off the breakthrough.
- the hybrid material, the optional metal strip and the mounting devices represent separate components, even if they are at least positively coupled to one another in the use situation and therefore form the endless cuff as a common unit.
- they can also be viewed together as a system, which as a whole forms the endless cuff.
- all claimed objects are to be transferred in an analogous manner to an endless cuff comprising a system which has at least the previously mentioned components.
- Fig. 3 is a simplified schematic representation of the endless sleeve, the tube and the external receptacle, and Fig. 4 is a simplified schematic representation of a mounting device.
- Figure 1 shows a simplified schematic representation of the hybrid material 10 according to one embodiment.
- the hybrid material 10 is shown here according to a cross-sectional view.
- the hybrid material 10 includes a first layer 12, a carrier layer 14 (also called a second layer) and a third layer 16.
- the first layer 12, the carrier layer 14 and the third layer 16 are stacked along the layer thickness HD of the hybrid material 10. This means that the layers 12, 14, 16 are arranged one above the other parallel to one another along the longitudinal direction of the hybrid material 10 and along the width of the hybrid material 10 and are connected to one another flatly in pairs.
- suitable coupling means can be provided, for example an adhesive.
- the first layer 12 at least partially comprises the intumescent material 18.
- the intumescent material 18 comprises graphite particles 20.
- the graphite particles 20 have a particle size of essentially 0.4 mm.
- the particle size here refers to an average diameter of a graphite particle 20, which can be assumed to be spherical in a first approximation.
- the graphite particles 20 can also have other geometries. However, the greatest extent of the respective particle geometry is essentially 0.4 mm.
- the carrier layer 14 is arranged adjacent to the first layer 12.
- the carrier layer 14 has a mesh structure 22.
- the mesh structure 22 is designed as a rectangular mesh structure 24.
- the Rectangular mesh structure 24 has substantially uniform rectangular meshes 26.
- the individual stitches 26 have a first edge length 28 and a second edge length 30.
- the first edge length 28 and the second edge length 30 are at least 3.5 mm and up to 4 mm in this embodiment.
- the meshes 26 can also have openings along the layer thickness HD.
- the third layer 16 has a film 32, which in the present case comprises a plastic material.
- the graphite particles 20 foam and expand. Overall, this leads to an expansion of the first layer 12 and thus of the hybrid material 10.
- the particle size of the graphite particles 20 in relation to the edge lengths 28, 30 of the meshes 26 ensures that the intumescent material 18 including the graphite particles 20 partially passes through the meshes 26 can pass through. Since the film 32 melts in the event of a fire, a coupling between the intumescent material 18 of adjacent, stacked layers of the hybrid material 10 can be ensured. This creates a resilient, mechanically stable coupling that can be used to seal off a wall breakthrough.
- At least the carrier layer 14 has a fabric 34.
- the stitches 26 are therefore formed from a fabric 34.
- the first layer 12 and/or the third layer 16 can also have the fabric 34.
- the fabric 34 can differ from each other per layer 12, 14, 16.
- the carrier layer 14 can also be viewed as a second layer.
- the mesh structure 22 of the carrier layer 14 preferably has a glass fiber material and/or an aluminum material.
- Figure 2 shows a simplified schematic representation of the hybrid material 10 according to a further embodiment. Only differences from the previous embodiment will be discussed here.
- the carrier layer 14 has a mesh structure 22 which includes a diamond mesh structure 36.
- the edge lengths 28, 30 of the meshes 26 of the diamond mesh structure 36 correspond to those of the rectangular mesh structure 24 from the previous embodiment.
- the remaining structure of the hybrid material 10 corresponds to that of the previous embodiment.
- the choice of the shape of the meshes 26 influences the mechanical stability. This means that in particularly demanding applications, for example, the diamond mesh structure 36 may be preferred.
- Figure 3 shows a simplified schematic representation of the endless sleeve 40, the tube 42 and the external receptacle 44. The components are shown in accordance with a cross-sectional view.
- the endless sleeve 40 comprises the hybrid material 10, which is arranged in multiple layers around the tube 42 on the radial outside.
- the number of layers 46 generally depends on the diameter of the tube 42.
- the endless sleeve 40 can further comprise a metal band 48, which can be arranged radially on the outside relative to the center of the endless sleeve 40 and thus to the center of the tube 42 adjacent to the hybrid material 10.
- the endless cuff 40 also includes several, here three, mounting devices 50, which on the one hand serve to position the endless cuff 40 and on the other hand ensure correct positioning of the hybrid material 10 and possibly the metal strip 48 relative to the tube 42.
- the mounting devices 50 at least partially enclose the hybrid material 10 and optionally the metal strip 48 at least along the axial direction of the tube 42. The mounting devices 50 thus prevent this from happening Hybrid material 10 or optionally the metal strip 48 can move along the axial direction, the radial direction or the circumferential direction of the tube 42.
- the intumescent material 18 is forced in the radial direction of the tube 42 towards the center when it expands in the event of a fire.
- the intumescent material 18 can take up the space that is freed up and close the corresponding opening in the external receptacle 44, for example a wall. Furthermore, the intumescent material 18 of the adjacent layers 46 of the hybrid material 10 passes through the meshes 26 and couples with one another, so that a mechanically stable sealing is guaranteed.
- the mounting devices 50 have at least hook sections 52, by means of which the endless cuff 40 can be fixed to the external receptacle 44.
- the hook sections 52 advantageously have an elongated hole 54 in order to provide at least one degree of freedom when fixing.
- Figure 4 shows a simplified schematic representation of a mounting device 50 according to a side view.
- the mounting device 50 has a hook section 52 with an elongated hole 54 for fixing to the external receptacle 44. After fixation on the external receptacle 44, the contact surface 56 is arranged adjacent to the external receptacle 44.
- the hook section 52 of the mounting device 50 has a substantially L-shaped base section 58.
- the long leg of the L-shaped base section 58 is oriented along the axial direction of the tube 42 in the situation of use.
- the short leg of the L-shaped base section 58 is oriented along the radial direction of the tube 42 in the situation of use.
- the mounting device 50 further includes a finger portion 60 that extends at least partially along the axial direction.
- the finger section 60 is coupled to the base portion 58 by suitable connecting means 62, for example by screws, rivets, an adhesive, or the like.
- suitable connecting means 62 for example by screws, rivets, an adhesive, or the like.
- the finger section 60 can also be made of one material together with the hook section 52, but here the bending point must be designed so that the finger section 60 can be bent with little force in the event of a fire.
- the finger section 60 is arranged radially on the inside in the use situation relative to the hybrid material 10 and possibly the metal band 48 of the endless cuff 40 arranged.
- An outer surface 64 of the finger portion 60 is then arranged adjacent to the tube 42.
- the hybrid material 10 and possibly the metal band 48 are enclosed between the external receptacle 44 and the abutment surface 66 in the situation of use.
- the hybrid material 10 and optionally the metal band 48 are enclosed along the radial direction between the finger section 60 and the long leg of the L-shaped base section 58.
- the hybrid material 10 and the metal strip 48 are enclosed overall by the mounting device 50.
- the intumescent material 18 expands.
- the finger section 60 is such that it can bend from a first orientation direction 70 along the axial direction of the tube 42 into a second orientation direction 74 along the radial direction of the tube 42 due to a bend 72. This gives more room for the expansion of the intumescent material 18. Furthermore, this makes it possible for the space released by the melting or burning tube 42 to be occupied by the intumescent material 18.
- the base section 58 and also the hook section 52 as a whole essentially do not bend in the event of a fire, at least not under the typical fire conditions.
- the coordinate system 76 schematically illustrates the orientation with respect to the tube 42. This refers tangentially to the circumferential direction of the tube 42 lying in the plane of the drawing.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Mechanical Engineering (AREA)
- Building Environments (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22178805.2A EP4293264A1 (de) | 2022-06-14 | 2022-06-14 | Endlosmanschette für ein rohr |
| PCT/EP2023/064519 WO2023241913A1 (de) | 2022-06-14 | 2023-05-31 | Endlosmanschette für ein rohr |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4540543A1 true EP4540543A1 (de) | 2025-04-23 |
Family
ID=82058428
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22178805.2A Withdrawn EP4293264A1 (de) | 2022-06-14 | 2022-06-14 | Endlosmanschette für ein rohr |
| EP23730070.2A Pending EP4540543A1 (de) | 2022-06-14 | 2023-05-31 | Endlosmanschette für ein rohr |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22178805.2A Withdrawn EP4293264A1 (de) | 2022-06-14 | 2022-06-14 | Endlosmanschette für ein rohr |
Country Status (3)
| Country | Link |
|---|---|
| EP (2) | EP4293264A1 (de) |
| CA (1) | CA3249522A1 (de) |
| WO (1) | WO2023241913A1 (de) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPQ024099A0 (en) * | 1999-05-07 | 1999-06-03 | Promat Fyreguard Pty Ltd | Service shut off device |
| US8024900B2 (en) * | 2008-07-30 | 2011-09-27 | 3M Innovative Properties Company | Pass-through firestop apparatus and methods |
| DE102014108549B4 (de) * | 2014-06-17 | 2016-05-25 | Svt Brandschutz Vertriebsgesellschaft Mbh International | Brandgeschützte Kabel-/Rohrdurchführung |
| EP3643365A1 (de) * | 2018-10-24 | 2020-04-29 | Hilti Aktiengesellschaft | Brandschutzelement zum abdichten von durchgangsöffnungen in bauelementen |
-
2022
- 2022-06-14 EP EP22178805.2A patent/EP4293264A1/de not_active Withdrawn
-
2023
- 2023-05-31 CA CA3249522A patent/CA3249522A1/en active Pending
- 2023-05-31 WO PCT/EP2023/064519 patent/WO2023241913A1/de not_active Ceased
- 2023-05-31 EP EP23730070.2A patent/EP4540543A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP4293264A1 (de) | 2023-12-20 |
| WO2023241913A1 (de) | 2023-12-21 |
| CA3249522A1 (en) | 2025-06-17 |
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