Note: Descriptions are shown in the official language in which they were submitted.
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'WU OOI29686 PCTIEP99103122
Security Room For Information Technology Facilities
The invention relates to a secure room for devices in connection with
information technology, having fireproof side walls with a door, a floor and a
ceiling, wherein the side walls are put together from plate-shaped individual
elements, which are arranged side-by-side, are designed to be fireproof and
extend from the floor to the ceiling, fireproof sealing elements are arranged
in the
joints between the individual elements having at least two fireproof layers,
and
the individual elements are held against each other by connecting means, which
push the sealing elements together.
Such a secure room is recited in GB-A 504 255. In this known securt:
room made of insulated wall elements placed next to each other, the wall
elements have several fire-protecting layers, which have been inserted into a
metal frame of an E-shaped profiled cross section. Sealing strips, inserted
into
dovetail- shaped grooves or fastened by screws or rivets, have been inserted
between the metallic profiled frame sections made, for example, of aluminum.
Asbestos has been identitied as the material for the wall elements and the
seals.
A fire protection material for use in fire-protection grooves is disclosed in
DE-U 297 10 462, which is intended to assure great imperviousness against
fluids, great stability against tension and pressure without the formation of
cracks, and impermeability to tire and smoke in case of fire. A glass fiber
material, to which expanded graphite has been applied, is identified as the
preferred carrier material.
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A layered structure of individual elements is shown in EP-A 0 458 560.
' In accordance with EN 7047, a secure room of this type is intended to
assure, inter alia in case a fire occurs, that the information technology
devices
ace not destroyed over a defined period of time, for example 90 minutes, and
can
continue to operate in order to secure important control functions and data.
The object of the invention is based on making available a secure room of
the type mentioned at the outset, which assures the required security for
information technology devices and can be simply constructed.
This object is attained by means of the characteristics of claim 1. In
o accordance therewith it is provided that the sealing elements have an
expanding
seal which, viewed in cross section, is arranged in the central area and
expands
in case of fire and, arranged laterally therefrom, high-temperature seals
which
withstand the development of temperatures up to several hundred degrees C,
and that the individual elements are constructed in layers with outside layers
of
steel arranged on their exteriors and with at least two layers between them,
which withstand the development of temperatures up to several hundred degrees
C.
With such a construction the connecting points between the individual wall
elements in particular, which are endangered in case of fire, are fireproofed,
a:~
well as sealed against corrosive combustion gases and moisture, so that a
temperature increase in the interior o! the secure room is counteracted..
Moreover, a seal against corrosive combustion gases and moisture is assured.
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An additional protection against the effects of temperaturE in the joint
areas of the wall elements is achieved in that the sealing groove between the
areas at the joints of the individual elements is covered at least on one of
the two
outer sides by means of a sealing tape covering the sealing groove, and
furthermore, in that the sealing groove is closed off with a sealing material
ut
least on one of its areas adjoining the two outsides.
The transition between the individual elements with a satisfactory sealing
effect is aided in that the joint sides of the individual elements are
provided with
connecting tongues.
A solid simple connection between the individual elements, wherein the
sealing elements are pressed together for increasing the sealing effect and
furthermore harmful changes in the wall elements are prevented, is achieved in
that the connection means at the outer coverings have connecting elements in
the area of the sealing grooves, which have grooves, open at the sides and
tapering comically toward the top, and that closure elements, which taper
toward
the top, can be placed on the connecting elements of adjoining individual
elements by means of lateral bevels and can be clampingly fixed in place.
Furthermore, steps are advantageous for simple mounting and definitE:
solid orientation of the wall elements, wherein the undersides of the side
walls
24 are inserted into U-shaped floor profiles, open toward the top, and wherein
thE~
seals and the connection means are covered, at least on the inside of the
secure
room, with profiled linings.
Sealing of the fireproof room is further complemented in that a cable duct
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'CVO 00129686 PCT/~P99/03122
for passing cables through is installed in at feast one side wall element,
which
has an outer packing frame with sealing modules received therebetween, and
that the sealing modules have feed-through openings for the cables, which have
inner wails which can be removed in the manner of onion layers in order to
adapt
the diameters of the feed-through openings to the various cable diameters.
The invention will be explained in greater detail in what follows by means
of exemplary embodiments and by making reference to the drawings. Shown ar~~
in:
Fig. 1, a perspective view of a secure room with partially cut open walls,
Fig. 2, a cross section of a portion of the secure room installed in a room
of a building,
Figs. 3a) to 3d), various wall elements in a perspective view,
Figs. 4A and 4B, a connection area between wall elements in a plan view
from above and a lateral view,
t5 Fig. 5, a support device in a larger secure room,
Fig. 6, an installed door in cross section,
Fig. 7, a built-in element in the secure room, and
Fig. 8, a cable duct between the outside and the inside of the secure
room.
In a perspective view, Fig. 1 shows, as the essential elements of a secure
room 1, side walls 2 with a door 5, a ceiling 3, as well as a double-deck
floor 4,
wherein the side walls 2, the ceiling 3 and the floor 4 are assembled in a
modular
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form of individual wall elements. Various components of the information or
control technology ar~ housed in the room, as well as an airconditioning
device
12 and a light fixture 7. A firefighting device 8 with reservoirs containing
firefighting agents arranged on the outside, and lines and outlet openings
arranged in the ceiling of the interior of the fireproof room 1, and
furthermore a
device 9 for removing used fire-extingmshing means, are provided in case of
firE~.
Moreover, an electronic control system 10 is arranged on the outside, while a
motion sensor 11 is attached in the interior. An interruption-free power
supply 13
Can furthermore be provided in the interior. A cable inlet 6 for the current
supply
0 for the electrical components arranged in the interior of the secure room 1
is
installed in one side wall 2.
Figs. 3a) to 3) show the various wall elements in the form of a side wall
element S, a ceiling element D of the same width; a floor element B and a
corner
element E, whose lateral parts preferably correspond to the width of a side
wall
element S. In Figs. 2, 4A and 4B the structure of these wall elements Can be
seen in cross section, as well as their connecting area. In accordance with
this,
the side wall elements S and the ceiling elements D, and correspondingly also
the corner elements E, consist of an outer layer 2.1, or 3.1, made of sheet
steal,
so that a coffer-tike structure is formed and several fireproof layers I, II,
III of an
insulating material are housed between the two outer layers 2.1, or 3.1, which
- has a retarding effect in case of fire, so that the maximally permissible
threshold
value load on the information technology device will not be exceeded for 90
minutes, for example.
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The corner area between the side wall element S and the ceiling elements
D is covered by means of an angled profiled lining 2.2, wherein the vertically
,
downward oriented leg of the profiled lining 2.2 extends over the connecting
area
between the side wall elements S and the ceiling element D. The adjoining
edges of the side wall element S and of the ceiling element D are
complementarily designed in an L-shape, so that the side wall elements S and
the ceiling elements D can be easily and clearly put together with good
sealing.
Sealing means with an expansion seal 2.5 arranged in the center of the cross
section, with high- temperature seals 2 6 arranged laterally of the former,
with a
sealing tape 2.7 arranged on the outside, and with a sealing material 2.3
additionally provided between the sealing tape 2.7 and the high-temperature
seal
2.6, are arranged between the long sides of the side wall elements S and the
ceiling elements D. The critical connecting points are designed to be
fireproof by
means of this sealing design. Connecting tongues 2.4 adjoin the sealing means
at the front in respect to the wall elements.
For the simple, and yet assured, cohesion of the wall elements in thE~
transition areas, connecting elements 2.9 with grooves, laterally open to thE~
outside and tapering comically toward the top, are formed on the outer layer
2.1,
as can be seen in Figs. 4A and 4B. Correspondingly matched closure elements
14, which taper toward the top and engage the grooves, are pressed on thE~
connecting elements 2.9, so that the sealing means are pressed together and a
tight connection is created. The connecting areas between the individual wall
.
elements provided with the connecting elements 2.9 and the closure elements 14
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WO OO/Z9686 PCTIEP99I0?1122
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are covered, preferably in the interior, by means of a profiled lining 15,
which is
trapezoidal in cross section. Fastening brackets 18 for built-ins can be
attached
to the profited linings i 5 in the room interior. The connecting areas between
the
wall elements themselves do not have any bores or screw holes which could
result in the fireproofing being endangered.
As can be further seen from Fig. 2, the side wall elements S are fixed in
place by means of profiled floor sections 2.3, which are anchored in the floor
of
the building and are U-shaped in cross section, so that the side wall elements
S
are securely maintained and are simple to install. The Ceiling elements
themselves can be additionally fastened on the ceiling of the room by means at
holders 3.2. The floor 4, designed as a double floor, consists of a lower
floor
element 4.3 and an upper floor element 4.1, which is at a distance from the
latter
and fixed on it by connecting means 4.2, and is surrounded as a whole by thE:
side walls 2, so that in this area, too, good sealing assures good fire
protection.
The light fixture 7 can be arranged in the area of the inner edge between the
side
walls 2 and the ceiling 3 instead of on a suspended additional ceiling in
accordance with Fig. 1, wherein a cable duct 7.1 can also be provided there,
for
example as in accordance with Fig. 5.
For the tight and fireproof closing of the door 5, a seal packing 5.3 has
been inserted all around into door casings 5.1, 5.2 and the door has been .
appropriately fitted and is constructed of fireproof materials. It is provided
with a
door closer 5.4 (see Fig. 1 ).
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Fig. 5 shows the support of adjoining ceiling elements D by means of a
profiled ~support 17, extending under the connection point, and of a pillar 1
f3,
which is supported under it on the floor and is anchored on the profiled
support
17 by means of a head plate 16.1, and on the floor of the building by means of
a
~ foot plate 16.2. Cable conduits 7.1 are formed on both sides in the area of
the
profiled support 17, and lighting fixtures, which radiate obliquely downward
into
the room, are installed there.
The cable inlet 6 represented in Fig. i can be constructed in accordance
with the cable duct 19, represented in Fig. 8. The latter has an outer packing
frame 19.2, into which sealing modules 19.1 have been inserted for the
respective cables. After being installed, the packing frame is radially
narrowed
by tightening of screws, so that the sealing modules 19.1 are compressed. The
sealing modules 19.1 contain shells, which are placed inside each other in the
manner of onion layers, so that they can be matched to different cable
diameters.
It is possible in a simple manner by means of the described measures to
put together secure rooms of various sizes in a modular manner. The Structural
parts constitute a kit put together of simple elements with correspondingly
simple
storage requirements.
CA 02350975 2001-05-16
