DK2357294T3 - Media ceiling with a flexible access air duct - Google Patents

Description

The present invention relates to a media ceiling (suspended service ceiling), particularly for laboratories, with an inlet air duct according to the preamble of claim 1.

In the field of building technology, ceiling designs are used in the design of research laboratories, such as for instance chemistry or physics research, whereby the pipes for exhaust air, supply air, the technical gases, liquids, power and data lines needed in the laboratory are fixed within the ceilings. by means of suitable fasteners by means of dowels directly on the present building ceiling. As the laying of the wires is thus usually carried out successively by different personnel, the difficulty is that the wiring is sometimes not only intersected, as well as alternately in several plans, but also, because of the individual mounting of the wires. attachment devices, subsequent spatial alterations to an existing laboratory device can only be made at high cost.

From WO 2007/033821, a media ceiling is known for routing supply lines in a room of a building, which comprises an inherently rigid support frame of profile carriers fixed in the ceiling area of the room. At least one inlet air duct for supplying fresh air, as well as at least one outlet air duct and wiring for sanitary media, is thereby received, whereby the inlet air duct above the gait extends substantially flush with the underside of the support frame in the plane of the carrier frame, and the conduits for supply of the sanitary media above the inlet air duct extends into another plane.

Although the media air described in the aforementioned patent application not only allows for a very quick and simple installation, but also a highly structured placement of the inlet and outlet air ducts as well as the media ducts, the entire construction with the inlet air duct used, which are carried in the plane of the support frame construction, relatively expensive, since for the purpose of a generally rectilinear wiring, breakthroughs in the profile frame of the support frame structure must be provided.

From JP 2006 349271A there is known a system for cooling or heating air in a room and in which a supply air duct whose cross-section is D-shaped is provided in which the cooled or heated supply air is introduced into the room. The outlet air ducts located opposite the central inlet air duct, which are also arranged in the area at the ceiling of the room, are again suctioned out directly. The script does not indicate how the supply air duct can be releasably arranged on the underside of a carrier frame consisting of inherently rigid profile carriers and a light source is arranged in the interior of the supply air duct. US 2002/0155805 A1 discloses an inlet air duct with a D-shaped cross-section of textile material or plastic material, which is suspended in two grooves in hollow profiles. In order to illuminate the channel, a light source is arranged outside the channel on its upper side and which illuminates the channel through a light-permeable cover. The duct is held by means of profile moldings received by means of threaded rods on a carrier which is fixed directly to the ceiling of the building to provide the necessary space for the light source. The document describes a further embodiment of a textile material inlet air duct, which has a circular cross-section and is suspended via spacers in a simple steel wire extending below the building ceiling. In this embodiment, the light source in the form of light beams or LED strips is arranged in the interior space of the textile channel. Accordingly, it is an object of the present invention to provide a media ceiling which, at reduced manufacturing costs, can be produced less cheaply and with which ceiling also the maintenance and cleaning costs of the hollow bodies are reduced relative to the media ceilings of WO 2007/033 821. .

This task is solved according to the invention by means of the characteristic features of claim 1. Further characteristic features of the invention are described in the subclaims.

According to the invention, a media ceiling which, in particular in a laboratory, acts as a horizontal space separation and conducts the supply lines such as media lines for water, gases, vacuum, heating and cooling as well as for electrical and computer technology supply for laboratory workplaces, an inherently rigid support frame on profile carriers, which in a ceiling area of a room is fixed at a distance from this by means of suitably designed supports. In addition, on the support frame of profile carriers, an inlet air duct is provided for supplying fresh air to the building space.

The media air according to the invention is characterized in that the inlet air duct comprises a detachably mounted, elongated, hollow body of a mold-stable, elastic material itself, over its entire length, equipped with a number of air outlet openings, through which the inlet air is passed. to the interior of the hollow body, it enters into the room that the hollow body is at least regionally composed of a light-permeable material, and a light source is arranged in the interior of the hollow body and that the hollow body comprises a first and a a second lateral longitudinal region which, for the purpose of attaching the hollow body to the support frame, can be inserted into a connected, not-like receiving region extending parallel to the hollow body by means of a short-term deformation of the hollow body. because of the material's elasticity.

According to the invention, it is advantageous that, due to its flexible design and after the complete mounting of the media air with the components placed in the floor area of the room, respectively, at the working height and the subsequent lifting of the mounted frame to the building ceiling, the access air duct can be easily attached to the supporting frame. . In particular, the components may comprise the complete exhaust air ducts with suction openings, volume flow controllers and silencers, cooling ceilings, filters, bypass air chillers, building control systems such as sensors, but also supply lines for the sanitary media, electrical rails and electric rails speakers.

It is a further advantage of the media air that the hollow body can in the same way be very easily removed from the support frame in order, for example, to clean it after predetermined intervals of time.

The elongated hollow body according to one embodiment of the invention, and which is not claimed, consists of a flexible, textile-made, safety-technical material, such as, for example, a difficult combustible, technical synthetic web or foil material which is flexibly adapted to the respective claims and, for example, may have a thickness of 0.03 mm to 1 mm or more. In addition, it is advantageous that the hollow body can be cleaned very conveniently in known industrial washing machines as needed.

In this embodiment of the invention, the support frame comprises at least one, preferably, however, two profile bodies extending along the elongated hollow body, in each of which at least one longitudinal groove is oriented parallel to the hollow body. The hollow body hereby comprises a loop which extends substantially parallel to the elongated groove and into which is inserted a rubber elastic mold body, for example having a substantially circular outer diameter, and which may consist, for example, of rubber or polyurethane. . The rubber elastic mold body thereby has a larger outer diameter than the inner diameter of the groove, so that it can be manually pressed from the underside of the media air into the groove and subsequently molded into it. For this purpose, the groove may advantageously also include a groove bottom which can expand so that the rubber elastic mold body within the groove floor can expand to its full size.

Hereby, it is advantageous that the elongated hollow body can be fastened very quickly and with only a few handles, also by unskilled personnel, to the media ceiling support frame and can be detached from this, thereby deciding the mounting costs as well as maintenance and cleaning costs for the hollow body. reduced. In addition, the hollow body of this embodiment, which is not required, because of its flexibility, has the advantage that the required profile beams which extend across the support frame which is required to extend across can be effortlessly covered without the need for special precautions. . Therefore, in the region of the transverse carrier to be superimposed, the previously mentioned loops are advantageously interrupted, thereby opening up the possibility that these, over the entire length of the hollow body, are flush against the underside of the support frame structure.

According to an embodiment of the invention, the elongated hollow body has a D-shaped cross-section, whereby the flattened portion of the hollow body lies directly flat or flush against the underside of the support frame and forms essentially a closed, impermeable surface. The vaulted region of the D-shaped cross-section, which is advantageously attached to the area at a laboratory aisle in the considered space, is advantageously provided with a number of air outlet openings in the form of holes or also slots.

Hereby, it is found advantageous that the elongated hollow body can be made very advantageous in cost, whereby the holes can be produced, for example, by means of a laser or a punching machine according to a given pattern, preferably mechanically, in the D-shaped cross section. Hereby, the coating density of the holes provided in the material as such is impermeable to air, as well as the size of the holes in the region of the vaulted portion of the hollow body, at any time, at low cost, depending on the respective ventilation technical requirements, such as in particular, the amount of air and the temperature, together with the arrangement of laboratory furniture and the extractors, are adapted to the respective requirements.

In the preferred embodiment of the invention, the number of holes per unit area is increased, calculated from the center of the D-shaped cross-section, in the transverse direction of the hollow body, and to its lateral edges. The holes may, for example, have a diameter in the range between 0.4 mm in the center of the D-shaped region and, for example, 3.0 mm in the peripheral regions of the same and advantageously extend in rows or clusters over the entire length of the hollow body. . island

The number of holes can, for example, be between five holes per dm and more than one hundred holes per dm2, whereby the diameter of the holes here can furthermore also vary in the range between 0.4 mm and 3 mm. The ideal arrangement of the hollow pattern is thereby advantageously adapted to the respective needs and spatial requirements of the considered laboratory by means of computer-aided simulations of flow conditions (CFD), so that the air leaving the air outlet openings affects the area below the hollow body. according to a predetermined quantity pattern.

This prevents the known and inverted reverse droplet form of the inlet air formed under acceleration on the basis of the supply of cold inlet air. This especially allows advantageously the introduction of substantially larger inlet air volumes at significantly lower inlet air temperatures, without the occurrence of commonly occurring draft air phenomena which, by the laboratory staff, are generally very disruptive and can easily cause colds, at the same time as the inlet air volumes and inlet air temperatures.

According to a further thought which forms the basis of the invention, the elongated hollow body is in flow communication with a main inlet air duct, which in the plane above the support frame can be arranged on it and, for example, by means of suitable angular profiles is retained on the support frame. The main inlet air duct which, with the elongated hollow body, flows via connecting ducts and is preferably connected from above with plugs or the like, which opens into the hollow bodies, preferably consists of a poorly air-permeable material, for example a non-coated fabric. - or synthetic fabrics, in particular polyamide fabrics, with a mesh width of 0,01 mm. In this way, it is advantageously ensured that in the branching areas of the main inlet air duct due to the varying pressure and flow conditions condensation water does not occur, as can be observed, for example, in known metal inlet air ducts, when they are not externally isolated.

According to another embodiment of the invention, the elongated hollow body may be composed of a plurality of sub-areas which can be substantially airtightly interconnected via zippers and / or cage closures. Here, the zippers or cage closures are preferably disposed on the peripheral fringes of the hollow body subregions so that a plurality of hollow body regions can be connected to each other to a hollow body of any length.

Furthermore, it may also be arranged so that the elongated hollow body is secured by means of a strap to a plate extending between two profile carriers, for example an aluminum plate which spans the two profile carriers on their underside and is held by simple means. countersunk screws and grooves that engage the longitudinal groove of the profile carrier. This tape band, for example, can have a width of about 40 mm and, in the form of two strips, be adhered to the underside of the plate along its side edges, parallel to the profile wires. The elongated and self-sealed hollow body comprises on its upper side the hook straps corresponding to the straps, which, after the hollow body has been pressed against the straps, firmly and detachably fix the hollow body on the plate below the support frame.

The use of carrier strips as well as zippers is also advantageous in the area at the branching points between the main inlet air duct and the connecting duct, respectively the connecting duct and the plug, which flow-wise connect the elongated hollow body to the connecting duct.

According to another embodiment of the invention, the hollow body consists of a form-stable, in itself resilient, plastic, and comprises a second lateral longitudinal region, preferably formed as integral to the hollow body. Each of the two lateral, longitudinal regions of the hollow body has associated with a groove-like receiving area fixed on the underside of the support frame which extends parallel to the hollow body and into which the respective receiving region can be inserted. For the purpose of this embodiment of the invention, for attaching the hollow body to the support frame, the mold bodies, which preferably have the shape of a lying "D" with additional lateral longitudinal regions formed or - otherwise expressed - of the form of a "Ω" , preferably one piece in the region of the lateral longitudinal regions briefly compressed against their intrinsic elasticity, whereby the longitudinal regions can be introduced into the groove-like receiving regions due to the shortened width of the hollow body.

After the release of the hollow body, the longitudinal regions are then pressed into the groove-like receiving regions by their own elasticity, and the hollow body is thus fixed on the support frame.

According to the idea of the invention, the hollow body is regionally composed of a light-permeable material, for example transparent or translucent plastic, whereby the light source is located in the interior of the hollow body and which can be supplied with electricity via the supply air duct located above the inlet air duct. . Hereby, it is advantageous that the hollow body also at the same time assumes the function of a lamp protected in the inlet air duct and, due to simple disassembly of the hollow body, is easily accessible at any time. Due to the associated double function of the hollow body as both the supply air duct and the light source, significant advantages arise in terms of cost.

The invention will now be described with reference to the accompanying drawings in connection with a preferred embodiment of the invention. The drawing shows

FIG. 1 is a diagrammatic and perspective view of a media ceiling having a lower elongated hollow body of fabric material disposed therein as well as a main inlet air duct extending transversely above the plane of the frame;

FIG. 2 in cross section, the media air according to the invention in the area of a transverse carrier,

FIG. 3 shows, in detail, the edge region of an elongated hollow body of textile material for illustrating its attachment to a profile carrier extending along the hollow body; and

FIG. 4 shows a second cross-section of the media air according to the embodiment of the invention, wherein the elongated hollow body consists of an inherently rigid, form-stable and advantageously transparent or translucent material.

As shown in FIG. 1, a media ceiling 1 for conveying supply lines 6 to a room in a building comprises an inherently rigid support frame 2 of profile carriers 4 which is fixed to the ceiling in the space not shown by means of spacers 8. As further shown in the representation of FIG. 1, an inlet air duct is provided on the underside of the support frame 2, which consists of an elongated hollow body 10 consisting of a flexible textile material and as such is impervious to air. The hollow body 10 comprises a substantially D-shaped cross-section and is longitudinally provided with a plurality of air outlet openings 12 which can be provided in the flexible material in a pattern adapted to the desired flow conditions, preferably by means of a punching tool or a laser.

As detailed in FIG. 2, the air outlet openings 12 are not evenly distributed over the cross-section of the hollow body 10, but preferably extend in rows over the entire length extension, whereby the density and also the size of the openings 12 starting from the center of the hollow body 10 indicated by line 15 moves towards its sides.

Furthermore, or alternatively, it may be arranged so that the openings 12 are not evenly distributed over the curved region of the hollow body, but in particular in the lateral sections of the curved region away from the center 15 are formed as clusters in this region, i.e. in accumulations with, for example, 10 holes having, for example, a size of just 0.4 mm.

The inhomogeneous distribution of the holes is merely schematically indicated in FIG. 2nd

As further shown in FIG. 2 and FIG. 3, the elongated hollow body 10 is detachably attached to the underside of the support frame 2 in accordance with an embodiment which is not required to be protected, thereby forming on each of the two sides of the hollow body a loop 14a, 14b elongate mold body 16 of a rubber elastic material which is pushed into the loop at the end of hollow body 10. In this embodiment of the invention, the support frame 2 comprises a first and a second profile body 4a, 4b, in which a longitudinal groove 18a is formed. , 18b, which is attached to the respective loop 14a, 14b, and which has at least in the area at the outside of the profile body 4a, 4b a smaller aperture width than the outer diameter of the mold body 16, so that the mold body together with the loop 14a, 14b surrounding it, can be manually pressed into the groove 18a, 18b, as indicated in FIG. 3. According to the representation of FIG. 3, the width of the longitudinal groove 18a, 18b can be extended towards the inside of the profile body 4a, 4b, that is, towards the bottom of the groove, thereby facilitating the insertion of the mold body 16 and its retention within the longitudinal groove 18a, 18b.

According to the representation of FIG. 1, the supply air is supplied, which is indicated by arrows in FIG. 2, in the elongated hollow body 10 via a main inlet air duct 20, which is technically connected to the hollow body 10 via one, also of a flexible, preferably textile material, connecting duct 22 and studs 24. The main inlet air duct 20 as well as The connecting duct 22 preferably consists of a material which is easily permeable to air and, together with the plug 24, is advantageously arranged in a plane which is above the plane of the support frame 2. Hereby, it is advantageous for the support frame 2 to be mounted together with all components located above the support frame 2 for the purpose of mounting the media ceiling 1 in the area at the floor of the building or at a desired working height, whereby also the main inlet air duct 20, preferably extending on across the elongated hollow body 10 can be secured to the support frame 2.

Thus, for mounting the media ceiling 1, it is not necessary that the hollow body 10 from the beginning must also be fixed to the support frame 2, in particular the mounting of the media ceiling 1 at working height is significantly facilitated, which working height can range from 80 cm to 130 cm. cm.

After the complete mounting of the support frame 2 and the components placed thereon, the entire structure is lifted by one or more lifting devices, for example, pulleys or electric lifters, and the studs 8 are attached to the building ceiling. In an intermediate position from about 1.8 to 2.0 m in height, the elongated hollow body 10 or the individual subregions of the same are secured to the support frame 2, whereby the interconnection of the subregions can be effected via airtight zippers not shown. / or cage closures, and the connection to the in this case, itself rigid, studs 24 via an enclosing elastic cord 26, the latter of which extends over the vertical portions of the hollow body material at the preferably thickened edges of the bounce 24 , as indicated in FIG. 2nd

According to the representation of FIG. 4, in the embodiment of the invention, the hollow body 10 consists of a resilient, resilient resilient plastic and comprises a first and a second lateral longitudinal region 30a, 30b, preferably formed integrally on the hollow body 10. Each of the two lateral longitudinal regions 30a, 30b are attached to a groove-like or pocket-like receiving area 32a, 32b attached to the underside of the support frame 4 which extends horizontally in parallel with the longitudinal axis of the hollow body 10 and preferably via unidentified screws and nuts are fastened to the respective profile carrier 4a, 4b. The groove-like receiving areas 32a, 32b can advantageously be covered by cover plates not shown in the drawing, as they are used, for example, in connection with climate protection. For the purpose of releasably attaching to the support frame 4 of the hollow body 10, which in this embodiment of the invention preferably has the shape of a "D" with the additional longitudinal regions formed thereon and a "Ω" respectively, the longitudinal regions 30a, 30b is briefly compressed against the center 15 of the hollow body and the longitudinal regions are then inserted into the groove-like receiving regions 32a, 32b. After the release of the hollow body 10, the longitudinal regions are then pressed into the not-like receiving regions 32a, 32b due to the intrinsic elasticity of the inherently rigid material of which the hollow body 10 consists, whereby the hollow body 10 subsequently, releasably retained on the support frame 4.

The distribution and configuration of the air outlet openings in this embodiment of the invention preferably correspond to the distribution and design of the air outlet openings in the first described embodiment of the same of flexible, especially textile material.

According to a further object of the invention, the material in the hollow body 10 can be at least regionally permeable to light, for example transparent or translucent plastic. In the interior of the hollow body 10, according to the invention, there is arranged a light source 34 comprising, for example, a light fabric tube or LED, which is driven, if necessary, by a suitable ballast unit 36, which is preferably located on the upper side of the hollow body 10. The hollow body 10, in the two previously described embodiments, except for the area at the air outlet openings and, where appropriate, the openings for the power supply to the light sources 34, in its entire length, seen in cross section, are closed as an air bag.

Claims (12)

1. Media ceiling (1) for routing supply lines in a room of a building, in particular in a laboratory, with an intrinsically rigid support frame (2) of profile supports (4, 4a, 4b) fixed in the area at the ceiling of the room , as well as having at least one supply air duct (10, 20) for supplying fresh air, as well as conduits (6) for supplying sanitary media, characterized in that the supply air duct comprises an elongated hollow body (10) of a mold stable, per se. resilient material, which is releasably received on the underside of the support frame (2) and which is provided throughout its length with a plurality of air outlet openings (12) through which the inlet air entering the hollow body (10) exits in the room, hollow body (10) is at least regionally composed of a light-permeable material, and a light source (34) is arranged in the interior of said hollow body and said hollow body (10) comprises a first and a second lateral, longitudinal area (30a, 30b) that with h a view of attaching the hollow body to the support frame (4) by means of a short-term deformation of the hollow body (10) can be individually inserted into an associated groove-like receiving region (32a, 32b) extending parallel to the hollow body (10) and held therein by the material elasticity. Media ceiling according to the preceding claim, characterized in that the hollow body (10) comprises a D-shaped cross section, whereby the flattened part of the hollow body extends on the underside of the support frame (2), in particular flushing with it, and the air outlet opening. the rings (12) are arranged in the vaulted region of the D-shaped cross-section. Media ceiling according to claim 2, characterized in that the number of air outlet openings (12) per unit area, starting from the center (15) of the D-shaped cross-section across the hollow body (10) towards its side edges, is increased so that the air exiting from the air outlet openings (12) affects the area below the hollow body according to a given amount pattern. Media ceiling according to one of claims 2 or 3, characterized in that the size of the air outlet openings (12), extending from the center (15) of the D-shaped cross-section across the mold body (10) to its lateral edges increases. Media ceiling according to one of claims 2 to 4, characterized in that the air outlet openings (12) are located in rows extending parallel to the longitudinal direction of the hollow body. Media ceiling according to one of the preceding claims, characterized in that the elongated hollow body (10) flows in communication with a main inlet air duct (20) arranged in the plane above the support frame (2), and which mainly consists of an air-permeable textile material. Media ceiling according to one of the preceding claims, characterized in that the elongated hollow body (10) consists of a number of sub-areas which can be connected to each other by means of substantially air impervious zippers and / or cage closures. Media ceiling according to claims 1 to 6, characterized in that the hollow body (10) is formed in one piece and has a substantially Ω-shaped cross section, whereby the first and second longitudinal regions (30a; 30b) of the substantially extending horizontally and inserted into the respective groove-like receiving region (32a, 32b). Media ceiling according to one of claims 1 to 8, characterized in that the hollow body (10) consists of a form-stable, elastic resin itself. Media ceiling according to one of the preceding claims, characterized in that the elongated hollow body (10) is removably fastened by means of a strap to a flat plate extending along the underside of the support frame (4). Media ceiling according to claim 2, characterized in that a number of holes in the lateral section of the curved area on each side of the center (15) are placed in clusters in the hollow body (10), in particular in clusters with 10 holes. Media ceiling according to claim 11, characterized in that the holes have a size of 0.4 mm.