Meltable Fuse

Abstract

The melting-fuse may be a non-stable container that contains compressed or vacuumed mineral wool, such as stone wool, that is attached to the fixation details between building components that must be air-permeable that must then provide sufficient fire resistance. The application includes melting-fuses. The fuse works in two parts, first it holds the compressed or vacuumed mineral wool in the desired location, without this prematurely expanding and thus interrupting the necessary air flow. The second form of the fuse is designed for the fact that this melts first in the event of fire, after which the compressed or vacuumed mineral wool expands and seals the cavity.

Through the melting of the fuse and the subsequent sealing of the detail/opening where the application is installed, the further spread of the fire through the air flow is prevented.

Claims

1. The confinement of compressed or vacuumed mineral wool in a container, solid or not, that melts during a fire, whether or not an internal fuse, whether or not supplemented with a stretch of tape that foams up in a fire, whereby the containment of at least one side breaks open or melts during a fire, after which the compressed or vacuumed mineral wool then expands in the desired direction and closes off along the entire length the space in which the solution is installed, so that there is no spread of the fire and the solution ensures the desired fire-resistance, also through the installed stretch of tape that foams up during a fire, through sufficient sealing.

2. Installing a cassette more specifically on the inside of the cavity between structural components and the outer façade if these are ventilated façades, whereby the cassette contains compressed or vacuumed mineral wool, whether or not supplemented with a stretch of tape that foams up during a fire, whereby the mineral wool is contained in the cassette and the containment melts away first on at least one side if a fire starts, after which the compressed or vacuumed mineral wool expands in the desired direction, thus staying in place and fully closing off the space between the building and the façade over the entire length, so that there is no spread of the fire and the solution, using the installed stretch of tape that foams up during a fire, ensures the desired fire resistance.

3. The installing of claim 2, wherein there may be no containment of the compressed or vacuumed mineral wool in the cassette, but this variant contains connections within or through the film with which the mineral wool is compressed or vacuumed which melt first if a fire starts, after which the solution expands in the desired direction and ensures the desired fire resistance.

4. The installing of claim 2, wherein there is no cassette, but an air-permeable spacer between the vacuumed compressed mineral wool and the outer façade or other form of construction, whereby the compressed and vacuumed mineral wool is contained to then be able to be attached to the desired location by releasing the vacuum on site so that this becomes stuck between the construction elements and the air-permeable spacer, which melts away during a fire after which the compressed or vacuumed mineral wool expands and ensures the desired fire resistance.

5. The installing of claim 2, there is no cassette or specifically of a cavity, but another form of melting container/construction whereby the compressed or vacuumed mineral wool is contained to then be able to be attached to the desired place, not specifically being a cavity, whereby the principle of melting away of—part of—the container/construction occurs during a fire, then after the melting, the compressed or vacuumed mineral wool expands, occluding the space and ensuring the desired fire resistance.

Description

[0019] The following are shown:

[0020] FIG. 1 schematic presentation of a (residential) building with fire compartments

[0021] FIG. 2 schematic presentation of a ventilated cavity at the location of a story floor

[0022] FIG. 3 schematic presentation of a barrier with fuse in fire in the design with a container/cassette

[0023] FIG. 4 schematic presentation of the function of a barrier with fuse

[0024] FIG. 5 schematic presentation of a barrier with fuse in the design with an internal fuse

[0025] FIG. 6 schematic presentation of a barrier with fuse in the design with an air-permeable spacer

[0026] When a building is divided into compartments there are in practice more spaces in the façade, floor or roof where a barrier against fire is required and a cavity must be conserved, these can all be provided with the current invention, the fuse. The fuse works in two parts, first it holds the compressed or vacuumed mineral wool in the desired location, without this prematurely expanding and thus interrupting the necessary air flow (which leads to damp problems). The second form of fuse is designed for the fact that this melts first in the event of fire, after which the compressed or vacuumed mineral wool expands and seals the cavity. With the examples shown in the figures (not limiting), one seeks to create insight into the solution that can be conceived and is a limited selection of all of the spaces present in a structural shell, where air must flow through.

[0027] FIG. 1 sketches out a residential building (1) with indication of a residence that must be constructed as a compartment (2) in terms of fire safety. In the event of fire in a compartment, this will be contained as long as possible to that compartment. All structural elements and connections between elements (3) must have sufficient resistant to the spread and transfer of fire. Fire resistant barriers are a solution for this in the connections. In this, the connections to the façade must be ventilated and are thus equipped with flammable insulation.

[0028] FIG. 2 shows a schematic cross-section of the connection between a story floor (4) and a ventilated façade. The façade is made up of an interior sheet (5) and a façade (9). The thermal insulation (6) is installed between the interior sheet and the façade. Moisture can condense behind the façade and to prevent this, the space between the insulation (6) and the façade (9), the cavity (7) must be continually ventilated with outside air. In the event of fire in one compartment, the fire may spread to another compartment may take place via the cavity. A fire resistant barrier (8) must prevent that. But when the barrier does not seal the cavity during a fire, the flames can creep up to the following floor between the barrier and the façade. Considering that the cavity acts as a chimney over the entire height of the building in the event of fire, and the thermal insulation (6) also burns, the fire can spread around it in a very short time and can “climb” up very fast via the cavity.

[0029] FIG. 3 shows an example design of the invention, a fire-resistant barrier with expanding wool (8). In a container developed for this, such as a cassette (12), there is inflammable insulation material installed (10) with a thickness adjusted to the thermal insulation used in the façade. This also includes compressed or vacuumed mineral wool (11). The cassette serves as a container and also as a fuse. During a fire,—whether or not part of—the cassette melts away, after which the compressed or vacuumed mineral wool will expand. In this, the fire retardant foam tape (13) is pressed against the façade, through which there is no or limited air flow and the fire retardant foam material better blocks the fire without falling apart/be blown away. The design of the cassette includes attachment points (14), so that it is very easy to install on the interior sheet.

[0030] A design of the invention not shown differs from FIG. 3 in the following. The expanding wool (8) is equipped with a reinforcement material that guarantees that the expanding wool (8) keeps its position when an underlying construction has fallen away through fire. The reinforcement material extends out into the interior of the wool (8). The reinforcement material extends out in the inflammable insulation material (10) and/or in the mineral wool (11). The reinforcement material contains a bracket attached in the wool (8). The bracket is attached to the cassette (12). It will be clear that all suitable reinforcement materials can be considered.

[0031] FIG. 4 shows what happens during a fire when the compressed or vacuumed mineral wool is installed with a fuse. After the fuse melts, the mineral wool (11) which is in the same position at the level of the storey floor (4), expanded and occludes the cavity (7) fully to the façade (9). The flames (15) can now not climb through the cavity, because the combination of the mineral wool (11), such as rock wool, with the fire retardant foam tape (13) functions as a fire-resistant barrier.

[0032] FIG. 5 shows an example of another manner of fuse. In this case, there is no container, but the fuse (16) is integrated into the compressed or vacuumed mineral wool. The fuse is installed between 2 plates (17), keeps this in place and thus holds the compressed or vacuumed mineral wool under tension and in shape. During a fire, the fuse (16) melts, after which the combination of, for example, stone wool (11) and fire retardant foam tape (13) expands and performs the intended role.

[0033] Lastly in FIG. 6 another alternative is shown. Here the fuse is installed in the form of an air-permeable spacer (18) that is perforated or allows air to flow through in another way (as a result of the design used, perhaps containing air vents), which melts first during a fire, after which the combination of the compressed or vacuumed mineral wool and fire retardant foam tape expands and performs its intended role.