EP0355517A2 - Dispositif pour provoquer un écoulement laminaire - Google Patents

Dispositif pour provoquer un écoulement laminaire Download PDF

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Publication number
EP0355517A2
EP0355517A2 EP89114322A EP89114322A EP0355517A2 EP 0355517 A2 EP0355517 A2 EP 0355517A2 EP 89114322 A EP89114322 A EP 89114322A EP 89114322 A EP89114322 A EP 89114322A EP 0355517 A2 EP0355517 A2 EP 0355517A2
Authority
EP
European Patent Office
Prior art keywords
rectangular frame
laminarizer
legs
fabric
fabric webs
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.)
Granted
Application number
EP89114322A
Other languages
German (de)
English (en)
Other versions
EP0355517A3 (en
EP0355517B1 (fr
Inventor
Klaus Dr. Fitzner
Walter Betz
Uwe Dr.Rer.Nat. Plitt
Wolfgang Dipl.-Ing. Schmitt
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.)
Heinrich Nickel GmbH
Original Assignee
Heinrich Nickel GmbH
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 Heinrich Nickel GmbH filed Critical Heinrich Nickel GmbH
Priority to AT89114322T priority Critical patent/ATE75022T1/de
Publication of EP0355517A2 publication Critical patent/EP0355517A2/fr
Publication of EP0355517A3 publication Critical patent/EP0355517A3/de
Application granted granted Critical
Publication of EP0355517B1 publication Critical patent/EP0355517B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F24F3/167—Clean rooms, i.e. enclosed spaces in which a uniform flow of filtered air is distributed
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/02—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation having means for ventilation or vapour discharge
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B2009/0492—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like with fabrics tensioned on frames

Definitions

  • the invention relates to a laminarizer, in particular for clean room ceilings and walls or the like formed from filter modules, which is suspended or held at a distance from a cover carrying the suspended matter filter and consists of a rectangular frame spanned with fabric webs, the legs of the rectangle -Frames consist of triangular hollow profiles or angular profiles in cross-section, on the surfaces facing the space of which the fabric webs have their alignment system.
  • the laminarizers formed by the rectangular frames and the adjoining fabric webs are already designed so that the frames have only small cross sections on their outlet side, so that cross currents and turbulence are prevented, which keep contaminants that have entered the clean room in suspension could.
  • the fabric webs are glued in their alignment position to the surfaces of the rectangular frames consisting of triangular hollow profiles or angle profiles facing the room.
  • the gaps between the mutually facing outer surfaces of adjacent rectangular frames are either completely sealed or else reduced to defined passage cross sections.
  • the object of the invention is to provide a laminarator of the type specified at the beginning, in which not only the possible flow disturbances on the outlet side are further minimized with particularly simple means, but at the same time the stability or durability of the connection between the rectangular frame and the fabric webs is improved .
  • the basic solution to this problem is that the surfaces of the rectangular frame legs facing the space are only effective as a narrow and / or rounded alignment system for the fabric sheets, while the attachment for the fabric sheets to the normal to the frame level directed outer surfaces and / or on the back surfaces of the rectangular frame legs lying in the frame plane is provided.
  • the surfaces of the rectangular frames facing the room can be designed in a manner like a cut, but slightly rounded, so that the formation of flow shadows and the resulting eddy currents is counteracted. Nevertheless, the extent of the fastening surfaces for the fabric sheets can be increased considerably if necessary, so that the holding connection of the fabric sheets to the rectangular frame is significantly improved.
  • an adhesive can be provided for fastening the fabric webs - as well as in DE-GM 87 10 781.
  • This gluing can not only be provided between the rectangular frame legs and the fabric web, as provided for in claim 3, but also according to claim 4 adhesive strands, e.g. hot melt adhesive, can be inserted in longitudinal recesses, e.g. undercut grooves, of the rectangular frame legs and on the opening side of the longitudinal recess with the fabric web - by melting - to be connected.
  • adhesive strands e.g. hot melt adhesive
  • the invention advantageously also provides that the fabric webs by means of piping and / or sealing profiles in longitudinal depressions, e.g. undercut grooves, the rectangular frame legs are releasably set.
  • the piping profiles can also carry an integrally molded sealing lip which protrudes elastically from the outer surface of the rectangular frame legs.
  • Both the flag and / or arcuate edge strips of the fabric webs and the sealing lips of the piping profiles can protrude according to claim 8 into a gap between adjacent rectangular frames and be brought into mutual contact within the same, so that defined leaks are caused by them in the gap.
  • the possible flow through the gaps between adjacent rectangular frame legs is advantageously reduced the disturbance of the flow in the wake of the frame.
  • a structurally simple configuration of the laminarizers is achieved if, according to claim 10, the rectangular frame legs are connected to one another via corner angles, the legs of which have an angular distance from one another which is between 90 o and 91 o , preferably between 90 o 10 ′ and 90 o 20 ′, lies, the rectangular frame legs are connected to each other to form a rectangular frame under a convex or outwardly curved, elastic pretension.
  • the invention provides according to claim 11 that the legs of the corner brackets are held together with a press fit connection with the rectangular frame legs, so that no further connecting means are required.
  • corner angles in their outer corner zone have a wall section parallel to the frame plane, which is provided with quarter-circle predetermined breaking points and thereby defines limited breakout areas. Removing these cut-out areas at four adjacent corner angles results in a circular passage, such as is required for energy supply lines or the installation of sprinkler systems. Adjacent to these cut-out areas, namely following the inner corner zone, the corner brackets can also contain circular passages directed transversely to their main plane, through which a fastening element for the laminarizer can be passed.
  • the support plate is provided with fastening interventions for each corner of four adjacent rectangular frames, each of which is slidable to a limited extent in the longitudinal and transverse directions on or on the support plate.
  • the fastening interventions consist of nuts which can be moved in cages and into which the corner pieces of the rectangular frame screws can be screwed.
  • the fastening interventions in the cages can optionally also be designed in the manner of bayonet or ring closures, with which corresponding counterparts can then be brought into engagement, which penetrate the corner pieces of the rectangular frames.
  • a laminarizer in which the ceiling fastening consisting of hanging or tensioning rods also carries support plates for bandraids formed from sheet metal profiles, which serve to accommodate cover plates, by means of which the frames of the suspended matter filters for the filter modules can be clamped is finally characterized by the fact that the joints of the band grid are sealed by sheet metal glued on the underside.
  • the air conditioning air is supplied through filter modules that are installed under the ceiling and / or in front of the room walls.
  • the filter modules are preceded by so-called laminarizers 10 in a plane that is at a distance from them, which are shown in FIGS Partial drawing can be seen.
  • a larger number of such laminarizers 10 in a prefabricated standard size are grouped close together and installed in such a way that they are located in front of at least the largest proportion of the area of a ceiling or wall.
  • Each laminator 10 consists of a rectangular frame 12 and at least one fine-mesh fabric web 14 braced over this rectangular frame 12, which can be formed, for example, by a metal and / or plastic fabric.
  • each rectangular frame 12 is composed of hollow profiles which are approximately triangular in cross section, for example metal or plastic extruded profiles, the two profile walls 16 and 18 being at right angles to one another, while the third profile wall 20 is arranged at an acute angle or obliquely for this purpose.
  • the rectangular frame 12 is designed such that the profile walls 18 each form the outer surfaces of its four frame legs 22a, 22b, 22c, 22d, which can be seen in FIG. 10.
  • each rectangular frame 12 is determined by the apex zone 24 of the two meeting profile walls 18 and 20 and is therefore very narrow. To avoid a sharp-edged boundary, however, the apex zone 24 is provided with narrow rounded surfaces, as can be clearly seen in FIG. 1.
  • each leg 22a to 22d of the rectangular frame 12 which has the rounded portions, forms an alignment system for the fabric webs 14, as can also be clearly seen in FIG. 1.
  • the cuts of the fabric webs 14 are dimensioned such that when the same edge strips 26 are tensioned, they can each be guided around the apex zone 24 of the legs 22a to 22d of the rectangular frame 12 and brought into contact with the profile walls 18 forming the outer surfaces thereof.
  • the fabric webs 14 are also attached to the profile walls 18 forming the outer surfaces of the rectangular frame, in the exemplary embodiment according to FIG. 1 by attaching adhesives 28, which establish a firm connection of the fabric webs 14 with the rectangular frame 12.
  • the bonds 28 are each made on the outer surfaces of the legs 22a to 22d of the rectangular frame 12 so that there are still unsecured areas of the edge strips, which are flag-shaped or protrude from the outer surfaces of the rectangular frame legs 22a to 22d.
  • Adjacent laminarizers 10 are installed in such a way that only a small gap distance 32 of a few millimeters remains between the outer surfaces formed by the profile walls 18 of the legs 22a to 22d of the rectangular frame 12, as can also be seen in FIG. 1.
  • the flag-shaped sections 30 of the edge strips 26 of the fabric webs 14 come to bear against one another and thereby form a defined leak in the gap distance 32 between the adjacent laminarizers 10.
  • the legs 22a to 22d of the rectangular frame 12 do not necessarily have to be produced from hollow profiles which are triangular in cross section. Rather, according to FIG. 2, they can also be formed by simple angular profiles, which only have profile walls 16 and 18 directed at right angles to one another, in which the oblique profile wall 20 is therefore missing.
  • the fabric webs 14 are fixed by gluing 28 their edge strips 26 in such a way that the flag-like sections 30 remain free. They also protrude into the gap distance 32 in such a way that they touch one another and there result the desirable, defined leak.
  • FIGS. 1 and 2 a different type of fastening for the fabric webs 14 on the legs 22a to 22d of the rectangular frame 12 can be seen than in FIGS. 1 and 2.
  • the apex zone 24 in which the outer surface of the Rectangular frame 12 defining profile wall 18 each have a longitudinal recess 34 formed in the form of a circular, undercut groove which extends continuously over the entire length of the profile.
  • the edge strips 26 of the fabric sheets 14 can each be anchored with the aid of a so-called keder profile 36, which can be pressed or pressed into the longitudinal recess 34 together with the assigned area of the edge strip 26.
  • a strand of hot-melt adhesive 38 is first introduced into the longitudinal recess 34, which is designed as a circular, undercut profile groove, and then the relevant edge strip 26 of the fabric webs 14 comes into contact with it from the outside.
  • the hot-melt adhesive strand 38 can now be heated and the fastening connection with the edge strip 26 of the fabric webs 14 can thereby be made.
  • the adhesive points can have such a position that flag-like sections 30 of the edge strips 26 remain free and project from the outer surface of the profile frame 12 formed by the profile walls 18.
  • FIG. 5 shows in a representation corresponding to FIG. 1 the installation position of two adjacent rectangular frames 12 in the construction shown in FIGS. 3 and 4. It can also be seen there that the gap spacing 32 is present and within it the two flag-like sections 30 of the edge strips 26 touch each other in such a way that they cause a defined leak which causes the laminar Favor flow pattern immediately behind the sounge zones 24, that is to say largely suppress undesired vortex formation.
  • FIG. 6 differs from that of FIG. 4 essentially only in that the edge strip 26 of the fabric webs 14 has a width there that almost corresponds to the width of the profile wall 18 of the frame legs 22a to 22d.
  • a strip section 40 is present, which is fastened near its longitudinal edge by an additional adhesive 42 so that an arch-like bulge is formed, which protrudes from the profile wall 18 or the outer surface of the rectangular frame 12.
  • the width of the edge strip 26 of the fabric webs 14 is dimensioned such that it can be applied to the outside of the legs 22a to 22d of the rectangular frame 12 over the entire width of the profile wall 18 and in addition also a part of the width of the Profile wall 16 can cover. In this case, then only the section 44 of the edge strip 26 is firmly glued to the rear surface formed by the profile wall 16, while the section 46 adjacent to the profile wall 18 remains free, so that it can assume a slight curvature position.
  • Fig. 10 of the drawing it is shown - in an exaggerated representation - that the four legs 22a, 22b, 22c and 22d of the rectangular frame 12 are connected to one another by four corner pieces 48 by simply pressing their legs 50 and 52 into the open Ends of the hollow profiles forming the legs 22a to 22d are driven.
  • the legs 50 and 52 of each angle piece 48 have an angular distance from each other which is slightly larger than 90 o . It should preferably be between 90 o 10 'and 90 o 20'.
  • all the frame legs 22a to 22d are placed on the finished rectangular frame 12 under an elastic prestress, which forces a slight convex or outwardly curved deformation thereof, as indicated by the solid lines in FIG. 10.
  • corner pieces 48 for the assembly of the frame 12 can be found in detail in FIGS. 11 and 12.
  • each corner piece 48 is preferably to be produced as injection-molded parts made of plastic or else as die-cast parts made of metal and can thereby be given a stable but material-saving configuration.
  • each corner piece 48 also has a middle piece 54 which has approximately square contours.
  • a passage channel 56 is formed, which connects to the inner corner zone of the middle piece 54 and can be used as a receptacle for a fastener of the rectangular frame.
  • the center piece 54 has, in a wall section 58 parallel to the frame plane, predetermined breaking points 60 which run in the shape of a four-part circle and through which correspondingly limited breakout areas 62 are defined.
  • breakout areas 62 therefore delimit a circular passage with one another, as is required, for example, for supplying energy or media.
  • the connecting lines for sprinkler heads can be easily installed there when the laminarizers 10 are already attached.
  • Fig. 13 of the drawing it is indicated that it can be advantageous if the fabric webs 14 in the rectangular frame 12 are only pretensioned to such an extent that they can still sag to a certain extent with respect to the plane of the rectangular frame 12. It has been shown to be particularly advisable if the pretensioning of the fabric webs 14 is selected so that a sagging curve results which has an arc height between 20 and 30 mm. Besides that thereby increasing the durability of the laminarizers 10, the laminar piston flow within a room can also be influenced favorably.
  • a special fastening device 64 is used so that the laminarizers 10 can be easily and easily hung up via their corner pieces 48, for example on a ceiling. This consists in the usual way of hanging or tensioning rods 65, with the lower end of which a support plate 66 is connected.
  • This support plate 66 has fastening interventions 68 for each corner of four adjacent rectangular frames 12. Each fastening engagement 68 is received in a cage 70 on the support plate 66 so that it can be displaced to a limited extent in the longitudinal and transverse directions.
  • the fastening interventions 68 advantageously consist of nuts which have a two-dimensionally displaceable but non-rotatable holder in the cages 70.
  • the fastening interventions 68 can also be designed in such a way that they enable interaction with quick-release fasteners, for example in the form of ring or bayonet fasteners.
  • fastening interventions 68 are designed as nuts, they can interact with screws which can be passed through the passage channels 56 of the corner pieces 48.
  • the laminarizers 10 carried by the fastening devices 64 are generally mounted at a distance from the filter modules of the clean room ceilings and walls.
  • the suspended matter filters of these filter modules are supported and fixed with the aid of so-called band grids 72, which are also held by the fastening devices 64.
  • band rasters 72 are shown schematically simplified.
  • the butt joints 74 are each sealed by sheet metal 76 glued on the underside, the adhesive layer 78 which is actually responsible for sealing also being shown.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Ventilation (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Paper (AREA)
  • Steroid Compounds (AREA)
EP89114322A 1988-08-17 1989-08-03 Dispositif pour provoquer un écoulement laminaire Expired - Lifetime EP0355517B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89114322T ATE75022T1 (de) 1988-08-17 1989-08-03 Laminarisator.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3827918 1988-08-17
DE3827918A DE3827918A1 (de) 1988-08-17 1988-08-17 Laminarisator

Publications (3)

Publication Number Publication Date
EP0355517A2 true EP0355517A2 (fr) 1990-02-28
EP0355517A3 EP0355517A3 (en) 1990-11-14
EP0355517B1 EP0355517B1 (fr) 1992-04-15

Family

ID=6361039

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89114322A Expired - Lifetime EP0355517B1 (fr) 1988-08-17 1989-08-03 Dispositif pour provoquer un écoulement laminaire

Country Status (5)

Country Link
US (1) US4898087A (fr)
EP (1) EP0355517B1 (fr)
AT (1) ATE75022T1 (fr)
DE (2) DE3827918A1 (fr)
ES (1) ES2031322T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2048299A3 (fr) * 2004-01-28 2010-06-09 Soft Cells A/S Panneau de recouvrement en particulier pour faux plafond
EP2047776B1 (fr) * 2007-10-09 2013-10-09 Normalu Dispositif et procédé le mettant en oeuvre pour la tension d'une toile sur un élément en relief

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4312959B4 (de) * 1993-04-21 2005-12-29 Heinrich Nickel Gmbh Reinraumdecke
US5470363A (en) * 1995-01-13 1995-11-28 Envirco Corporation Air blower and filter assemblies
US5782689A (en) * 1996-01-11 1998-07-21 Tomkins Industries Inc. Fabric faced air distribution device
US6059655A (en) * 1996-01-24 2000-05-09 Chemfab Corporation Fabric air diffuser, method for diffusing air, and method for attenuating noise associated with flowing air
US6425821B1 (en) 1996-01-24 2002-07-30 Chemfab Corporation Pore-containing web for diffusing fluids
US5725427A (en) * 1996-01-24 1998-03-10 Chemfab Corporation Fabric air diffuser, method for diffusing air, and method for attenuating noise associated with flowing air
US5885154A (en) * 1997-06-17 1999-03-23 Napadow; Michael F. Air supply means for a controlled environment room
SE512715C2 (sv) * 1998-07-27 2000-05-02 Flaekt Ab Laminärflödesram
DE19943479A1 (de) * 1999-09-10 2001-04-12 Manfred Kluth Abgehängtes Deckensystem
DE19943478C2 (de) * 1999-09-10 2002-11-28 Manfred Kluth Beleuchtungskörper mit teilweise lichtdurchlässigen Folien
US6413159B1 (en) 2000-06-28 2002-07-02 The Boeing Company Airplane cabin overhead air outlets
DE102014004921B3 (de) * 2014-04-07 2015-04-16 Innovations-Transfer Uphoff Gmbh & Co. Kg Reinraumbeleuchtungsvorrichtung
DE102014004922B3 (de) 2014-04-07 2015-03-12 Innovations-Transfer Uphoff Gmbh &.Co.Kg Laminarisatorpassagevorrichtung
JP2022163909A (ja) * 2021-04-15 2022-10-27 株式会社エアレックス 整流部材及びこれを用いた室内整流システム

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2221001A (en) * 1936-10-27 1940-11-12 Johns Manville Ventilating ceiling
US2276788A (en) * 1938-06-27 1942-03-17 Burgess Battery Co Building construction
CH578660A5 (fr) * 1973-11-15 1976-08-13 Henggeler Aldo
US4175936A (en) * 1977-09-06 1979-11-27 Weber Technical Products Division of Craig Systems Corp. Diffuser with replaceable filter
US4371386A (en) * 1981-05-18 1983-02-01 Veco International, Inc. Filter housing
DE3447901C2 (de) * 1984-12-28 1994-07-07 Flaekt Ab Von der Decke eines Raumes abhängbare modulare Rahmenanordnung zur Aufnahme von Filtern mit Fluiddichtung für Reinraumdecken
DE3605539A1 (de) * 1986-02-18 1987-08-20 Herbst Donald Vorrichtung zum zufuehren eines luftstroms in einen raum
DE8710781U1 (de) * 1987-05-16 1987-10-01 Heinrich Nickel Gmbh, 5240 Betzdorf Filtermodul für Reinraumdecken und -wände o.dgl.
DE8707512U1 (de) * 1987-05-26 1988-06-23 Haensel, Dietrich, 40789 Monheim Trägerrahmen für Filtermatten, wobei die Trägerrahmen aus Kunststoffspritzguß bestehen und an der Filtermatte verklebt oder thermofixiert sind
JPH03176944A (ja) * 1989-12-06 1991-07-31 Hitachi Ltd 搬送装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2048299A3 (fr) * 2004-01-28 2010-06-09 Soft Cells A/S Panneau de recouvrement en particulier pour faux plafond
EP2047776B1 (fr) * 2007-10-09 2013-10-09 Normalu Dispositif et procédé le mettant en oeuvre pour la tension d'une toile sur un élément en relief

Also Published As

Publication number Publication date
EP0355517A3 (en) 1990-11-14
ATE75022T1 (de) 1992-05-15
US4898087A (en) 1990-02-06
EP0355517B1 (fr) 1992-04-15
DE58901152D1 (de) 1992-05-21
DE3827918A1 (de) 1990-02-22
ES2031322T3 (es) 1992-12-01

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