EP0828976B1 - Filter box - Google Patents
Filter box Download PDFInfo
- Publication number
- EP0828976B1 EP0828976B1 EP96914203A EP96914203A EP0828976B1 EP 0828976 B1 EP0828976 B1 EP 0828976B1 EP 96914203 A EP96914203 A EP 96914203A EP 96914203 A EP96914203 A EP 96914203A EP 0828976 B1 EP0828976 B1 EP 0828976B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- filter box
- filter
- corner
- frame
- 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.)
- Expired - Lifetime
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
Definitions
- the invention relates to a filter box with a housing, in which there is a filter cell with a frame if necessary supported by a sealing profile against the stop bracket, wherein the housing has a connecting piece to a Air duct system, and in corner areas of the Housing corner bracket detachable in pockets attached to the housing engage with a bolt the corner bracket interspersed and against the frame of the filter cell on the other hand, the sealing profile presses.
- Such filter boxes come in a variety of forms and Execution. You can find them mainly in hospitals Intensive care units and operating rooms, electronics, in nuclear technology and in biologically clean rooms Application.
- the filter box serves any air pollution from the one to be brought into the corresponding room Filter out air.
- a filter box from the above Art is from FR-A-2 419 748 known. There a bolt presses directly against the Frame of the filter cell.
- the present invention is based on the object to eliminate these disadvantages and a universally applicable and easy to handle filter box.
- the screw bolt if necessary, presses on a diagonal strut via a support leg, which spans the filter cell, and with the Diagonal brace an outlet insert over a crossbar connected is.
- the diagonal strut thus serves to hold the Outlet insert, the diagonal strut in the least possible Extent of air leakage from the filter cell disturbs.
- the outlet insert on the diagonal strut is preferred a crosshead attached, as in DE-OS 43 36 806.9 is described. On this writing and its Features related to the truss cross is in the Special reference in this case. This is a concealed attachment of the outlet insert on the simplest Possible ways. Through the crosshead, the corresponding outlet plate fixed in several places, so that it is possible the outlet plate and the whole Arrange the outlet insert flat on the housing of the filter box.
- the corner of the filter cell is attached within the filter box, it is much easier. Further can almost the dimensions of the filter cell Internal dimensions of the filter box correspond, so that no Space is lost. It can therefore be the largest possible Filter cell with a relatively small filter box be used.
- the corner angle preferably consists of two vertically horizontal and vertical to each other Strips, the latter being pushed into the pockets, after the filter cell is inserted into the filter box has been and is supported against the stop bracket.
- the corner brackets reach under the filter cell in the area of their frame so that they are not in the exit opening protrude into the filter cell. This will Air outlet not disturbed.
- the screw bolt is inserted in the horizontal strips, now from below against the frame of the filter cell can be screwed.
- To guide this Screw bolt can be a threaded sleeve on the corner bracket or a thread can be formed.
- Another feature of the present invention relates on an improvement in maintenance.
- This is a Butterfly valve is provided in a connecting piece, wherein this butterfly valve from the outside or from below Filter cell is to be used. It protrudes from the Butterfly valve a rotating rod down, being on this A control lever is attached. This lever is from below through the insertion opening of the housing of the Filter box accessible and can be adjusted by hand become.
- This manual adjustment makes it possible to Completely waiting filter box on the air side cordon off so that no more supply air through the filter cell to be maintained is coming. Accordingly, no contamination of the Clean room take place. They can be done without difficulty Maintenance work, namely removing the filter cell and cleaning them. After insertion The butterfly valve needs the cleaned filter cell then only to be opened again by hand, their function is immediately given in full. There are no pneumatic or electromotive Servomotors with complex wiring needed, furthermore inspection openings or the like are obsolete. This affects the manufacture of the filter box and in particular at its price very cheap.
- Another advantage of the present invention is that that there is no sealant (silicone) in the entire filter box more is used. This applies above all to the supply air area. This also makes the filter box favorably influenced.
- a filter box R according to the invention has according to FIG. 1 a rectangular or square housing 1, wherein a roof panel 2 with fastening tabs 3 for fixing of the entire filter box R, for example on a ceiling is provided.
- Side walls 4 adjoin the roof panel 2 on all sides, which preferably in one piece with the roof panel 2 manufactured and folded from this. In this case only need the corner areas of the side walls 4 with each other to be connected.
- Each side wall 4 forms a fold 5 approximately in the center, in which a stop angle 6 is inserted and fixed.
- the side walls 4 together form an insertion opening 7, the peripheral edges 8 folded over to the outside becomes.
- a filter cell 9 is inserted into this insertion opening 7 used with a cross-sectionally U-shaped Sealing profile 10 supports against the stop bracket 6.
- This forms the sealing profile 10 together with the Stop angles 6 from a test channel 11 into which a tube 12 flows into.
- a Seal seat of the filter cell 9 checked at the stop angles 6 become. If the sealing profile 10 is not sealing at the stop angles 6, air can enter the test channel 11 get and is on the tube 12 to the other side the filter cell 9 out.
- the filter cell 9 has a surrounding wooden frame 13 on the inner edge of the sealing profile 10 rests.
- the wooden frame 13 defines that actual filter material 14.
- a diagonal strut serves to fix the filter cell 9 15, which are in two diagonally opposite one another Corner areas on the wooden frame 13 is pressed. This happens with special corner brackets 16, as shown in FIG. 6 are shown.
- Each corner bracket 16 consists of two L-shaped, such as angular parts running perpendicular to each other, two horizontal stripes 17.1 and 17.2 each two vertical stripes 18.1 and 18.2 are interconnected. In use, they grip vertical stripes 18.1 and 18.2 in pockets 19.1 and 19.2 one on the inner surfaces of neighboring Side walls 4 are fixed.
- the pockets 19 are the For the sake of simplicity, each formed by a profile of a strip is bent by almost 180 °. Hereby an insertion opening is formed, into which the vertical extending strips 18.1 and 18.2 of the corner bracket 16 can be inserted.
- the corner bracket 16 is a screw bolt 20 penetrated the one hand a screw head 21 with a hexagon opening 22.
- this screw 20 has a support foot 23, the pressed against the diagonal strut 15 in the position of use becomes.
- the screw bolt 20 preferably rotates in one Threaded sleeve 24, which is connected to the corner bracket 16 is.
- the corner bracket 16 itself Bore is formed with an internal thread so that the Threaded sleeve 24 can be used as a lock nut.
- the diagonal strut is used to define an outlet insert 25, as for example in DE-OS 43 36 806.9 is described.
- the outlet insert 25 has the shape of a dial arranged louvers, not shown in an outlet plate 26, these louvers Air deflection blades 27 are assigned.
- the air deflection slats 27 extend between bearing plates 28 and holding plate 29.
- a crosshead 30 inserted from a threaded bolt 31 projects approximately in the center. This Threaded bolt 31 is screwed into the diagonal strut 15, whereby the entire outlet insert 25 in the insertion opening 7 is set.
- the outlet plate 26 strikes at the edge 8
- the filter box R has one rectangular connection piece 32 to a not shown Air duct system.
- a round connecting piece is preferred in the side wall 4.3 32.1 provided according to FIGS. 3 to 5, in which is a butterfly valve 33.
- This butterfly valve 33 sits in two pivot pins 34.1 and 34.2, each rotatably fixed in the wall of the connecting piece 32.1 are.
- a rotating rod closes on the rotating pin 34.2 35 which engages in an angular housing 36 which the side wall 4.3 slightly below the filter cell 9 is put on.
- a control lever 37 In the angle housing 36 protrudes from the rotary rod 35 a control lever 37, which, as in particular from Figure 5 can be seen, accessible through the insertion opening 7 is. By turning this lever 37 Butterfly valve 33 are opened or closed.
- control lever 37 in relation to the filter cell 9 or the wooden frame 13 selected so that the wooden frame normally adjusts the adjustment lever 37 prevented.
- To adjust the adjusting lever 37 must this should be raised slightly so that it is above an upper one Edge of the wooden frame 13 can slide.
- the angle housing 36 can also be open at the bottom, such as this is indicated in Figure 5. That way is a Closing the butterfly valve 33 possible before the outlet insert 25 is removed.
- a measuring tube for differential pressure measurement In addition to the tightness test device through the tube 12 can be arranged a measuring tube for differential pressure measurement be.
- This tube penetrates in the drawing not shown, a stop angle 6 and extends downwards beyond the filter cell 9. Will be on this tube appropriate measuring device connected, so the pressure in Filter box measured in front of the filter cell and with the pressure after the filter cell are compared.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Air Bags (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
Die Erfindung betrifft einen Filterkasten mit einem Gehäuse, in dem sich eine Filterzelle mit einem Rahmen gegebenenfalls über ein Dichtungsprofil gegen Anschlagwinkel abstützt, wobei das Gehäuse einen Anschlußstutzen an ein Luftführungssystem aufweist, und in Eckbereichen des Gehäuses Eckwinkel in am Gehäuse festgelegte Taschen lösbar eingreifen, wobei ein Schraubenbolzen den Eckwinkel durchsetzt und gegen den Rahmen der Filterzelle andererseits des Dichtungsprofils drückt.The invention relates to a filter box with a housing, in which there is a filter cell with a frame if necessary supported by a sealing profile against the stop bracket, wherein the housing has a connecting piece to a Air duct system, and in corner areas of the Housing corner bracket detachable in pockets attached to the housing engage with a bolt the corner bracket interspersed and against the frame of the filter cell on the other hand, the sealing profile presses.
Derartige Filterkästen gibt es in vielfältiger Form und Ausführung. Sie finden vor allem in Krankenhäusern, auf Intensivstationen und in Operationsräumen, bei der Elektronik, in der Kerntechnik und in biologisch reinen Räumen Anwendung. Der Filterkasten dient dazu, jegliche Luftverunreinigung aus der in den entsprechenden Raum einzubringenden Luft auszufiltern.Such filter boxes come in a variety of forms and Execution. You can find them mainly in hospitals Intensive care units and operating rooms, electronics, in nuclear technology and in biologically clean rooms Application. The filter box serves any air pollution from the one to be brought into the corresponding room Filter out air.
Bei den bisher bekannten Filtern wird infolge von Schwierigkeiten bei der Befestigung der Filterzelle ein voluminöser Filterkasten verwendet, in dem eine relativ kleine Filterzelle sitzt. Dabei geht erheblicher Raum verloren.In the filters known so far, due to difficulties when attaching the filter cell a voluminous Filter box used in a relatively small Filter cell sits. Considerable space is lost in the process.
Ferner ist die Wartung derartiger Filterkästen problematisch, da bei der Entnahme entweder das gesamte System abgestellt werden muß, oder aber während der Wartungsarbeiten verschmutzte Luft in den Reinraum gelangt. Dies ist unerwünscht.Furthermore, the maintenance of such filter boxes is problematic, since either the entire system is switched off during removal must be, or during maintenance work polluted air enters the clean room. This is undesirable.
Ein Filterkasten der o.g. Art ist aus der FR-A-2 419 748 bekannt. Dort drückt ein Schraubenbolzen direkt gegen den Rahmen der Filterzelle.A filter box from the above Art is from FR-A-2 419 748 known. There a bolt presses directly against the Frame of the filter cell.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, diese Nachteile zu beseitigen und einen universell einsetzbaren und leicht handhabbaren Filterkasten zu schaffen.The present invention is based on the object to eliminate these disadvantages and a universally applicable and easy to handle filter box.
Zur Lösung dieser Aufgabe führt, daß der Schraubenbolzen ggf. über einen Stützfuß auf eine Diagonalstrebe drückt, welche die Filterzelle überspannt, und mit der Diagonalstrebe ein Auslasseinsatz über ein Traversenkreuz verbunden ist.To solve this problem, the screw bolt if necessary, presses on a diagonal strut via a support leg, which spans the filter cell, and with the Diagonal brace an outlet insert over a crossbar connected is.
Die Diagonalstrebe dient somit der Halterung des Auslaßeinsatzes, wobei die Diagonalstrebe in geringstmöglichem Umfang den Luftaustritt aus der Filterzelle stört.The diagonal strut thus serves to hold the Outlet insert, the diagonal strut in the least possible Extent of air leakage from the filter cell disturbs.
Bevorzugt wird der Auslaßeinsatz an der Diagonalstrebe über ein Traversenkreuz befestigt, wie dies in der DE-OS 43 36 806.9 beschrieben ist. Auf diese Schrift und deren Merkmale im Zusammenhang mit dem Traversenkreuz wird im vorliegenden Fall besonders Bezug genommen. Hierdurch ist eine verdeckte Befestigung des Auslaßeinsatzes auf einfachstem Wege möglich. Durch das Traversenkreuz wird die entsprechende Auslaßplatte an mehreren Stellen festgelegt, so daß es möglich ist, die Auslaßplatte und den gesamten Auslaßeinsatz plan an dem Gehäuse des Filterkastens anzuordnen. The outlet insert on the diagonal strut is preferred a crosshead attached, as in DE-OS 43 36 806.9 is described. On this writing and its Features related to the truss cross is in the Special reference in this case. This is a concealed attachment of the outlet insert on the simplest Possible ways. Through the crosshead, the corresponding outlet plate fixed in several places, so that it is possible the outlet plate and the whole Arrange the outlet insert flat on the housing of the filter box.
Durch den Eckwinkel ist die Befestigung der Filterzelle innerhalb des Filterkastens wesentlich er leichtert. Ferner können die Abmessungen der Filterzelle beinahe den Innenabmessungen des Filterkastens entsprechen, so daß kein Raum verloren geht. Es kann somit die größtmögliche Filterzelle bei einem relativ klein bemessenen Filterkasten eingesetzt werden.The corner of the filter cell is attached within the filter box, it is much easier. Further can almost the dimensions of the filter cell Internal dimensions of the filter box correspond, so that no Space is lost. It can therefore be the largest possible Filter cell with a relatively small filter box be used.
Bevorzugt besteht der Eckwinkel aus jeweils zwei senkrecht zueinander verlaufenden waagerechten und senkrechten Streifen, wobei letztere in die Taschen eingeschoben werden, nachdem die Filterzelle in den Filterkasten eingesetzt worden ist und sich gegen die Anschlagwinkel abstützt. Die Eckwinkel untergreifen die Filterzelle im Bereich von deren Rahmen, so daß sie nicht in die Austrittsöffnung der Filterzelle hineinragen. Hierdurch wird der Luftaustritt nicht gestört.The corner angle preferably consists of two vertically horizontal and vertical to each other Strips, the latter being pushed into the pockets, after the filter cell is inserted into the filter box has been and is supported against the stop bracket. The corner brackets reach under the filter cell in the area of their frame so that they are not in the exit opening protrude into the filter cell. This will Air outlet not disturbed.
In die waagerechten Streifen ist der Schraubenbolzen eingesetzt, der nun von unten her gegen den Rahmen der Filterzelle geschraubt werden kann. Zur Führung dieses Schraubenbolzens kann dem Eckwinkel eine Gewindehülse auf- oder ein Gewinde eingeformt sein.The screw bolt is inserted in the horizontal strips, now from below against the frame of the filter cell can be screwed. To guide this Screw bolt can be a threaded sleeve on the corner bracket or a thread can be formed.
Ein weiteres Merkmal der vorliegenden Erfindung bezieht sich auf eine Verbesserung bei der Wartung. Hierzu ist eine Absperrklappe in einem Anschlußstutzen vorgesehen, wobei diese Absperrklappe von außen bzw. von unterhalb der Filterzelle zu bedienen ist. Dabei ragt von der Absperrklappe eine Drehstange nach unten, wobei auf diese Drehstange ein Stellhebel aufgesetzt ist. Dieser Stellhebel ist von unten durch die Einschuböffnung des Gehäuses des Filterkastens zugänglich und kann von Hand verstellt werden. Durch diese Handverstellung ist es möglich, einen zur Wartung anstehenden Filterkasten luftseitig vollständig abzusperren, so daß keine Zuluft mehr durch die zu wartende Filterzelle kommt. Dementsprechend kann auch keine Verunreinigung des Reinraumes stattfinden. Ohne Schwierigkeiten können die Wartungsarbeiten, nämlich das Herausnehmen der Filterzelle und deren Reinigung, durchgeführt werden. Nach dem Einsetzen der gereinigten Filterzelle braucht die Absperrklappe dann nur noch von Hand wieder geöffnet zu werden, wobei sofort ihre Funktion in vollem Umfange gegeben ist. Dabei werden keine pneumatischen oder elektromotorischen Stellmotoren mit aufwendiger Verkabelung benötigt, ferner sind Inspektionsöffnungen oder dergleichen hinfällig. Dies wirkt sich bei der Herstellung des Filterkastens und insbesondere bei dessen Preis sehr günstig aus.Another feature of the present invention relates on an improvement in maintenance. This is a Butterfly valve is provided in a connecting piece, wherein this butterfly valve from the outside or from below Filter cell is to be used. It protrudes from the Butterfly valve a rotating rod down, being on this A control lever is attached. This lever is from below through the insertion opening of the housing of the Filter box accessible and can be adjusted by hand become. This manual adjustment makes it possible to Completely waiting filter box on the air side cordon off so that no more supply air through the filter cell to be maintained is coming. Accordingly, no contamination of the Clean room take place. They can be done without difficulty Maintenance work, namely removing the filter cell and cleaning them. After insertion The butterfly valve needs the cleaned filter cell then only to be opened again by hand, their function is immediately given in full. There are no pneumatic or electromotive Servomotors with complex wiring needed, furthermore inspection openings or the like are obsolete. This affects the manufacture of the filter box and in particular at its price very cheap.
Ein weiterer Vorteil der vorliegenden Erfindung liegt darin, daß im gesamten Filterkasten keine Dichtmasse (Silikon) mehr verwendet wird. Dies gilt vor allem für den Zuluftbereich. Auch hierdurch wird die Herstellung des Filterkastens günstig beeinflusst. Another advantage of the present invention is that that there is no sealant (silicone) in the entire filter box more is used. This applies above all to the supply air area. This also makes the filter box favorably influenced.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung
ergeben sich aus der nachfolgenden Beschreibung bevorzugter
Ausführungbeispiele sowie anhand der Zeichnung; diese
zeigt in
Ein erfindungsgemäßer Filterkasten R weist gemäß Figur 1
ein rechteckiges oder quadratisches Gehäuse 1 auf, wobei
eine Dachplatte 2 mit Befestigungslaschen 3 zur Festlegung
des gesamten Filterkastens R beispielsweise an einer Decke
versehen ist.A filter box R according to the invention has according to FIG. 1
a rectangular or
An die Dachplatte 2 schließen allseits Seitenwände 4 an,
die bevorzugt zusammen mit der Dachplatte 2 einstückig
hergestellt und von dieser abgekantet sind. In diesem Fall
brauchen nur die Eckbereiche der Seitenwände 4 miteinander
verbunden zu werden.Side walls 4 adjoin the
Etwa mittig bildet jede Seitenwand 4 einen Falz 5 aus, in
den ein Anschlagwinkel 6 eingeschoben und festgelegt ist. Each side wall 4 forms a
Die Seitenwände 4 bilden zusammen eine Einschuböffnung 7,
die von nach außen umgeschlagenen Randkanten 8 umlaufen
wird. In diese Einschuböffnung 7 wird eine Filterzelle 9
eingesetzt, die sich mit einem querschnittlich U-förmigen
Dichtungsprofil 10 gegen die Anschlagwinkel 6 abstützt.
Hierbei bildet dieses Dichtungsprofil 10 zusammen mit den
Anschlagwinkeln 6 eine Prüfrinne 11 aus, in die ein Röhrchen
12 einmündet. Mittels diesem Röhrchen 12 kann ein
Dichtsitz der Filterzelle 9 an den Anschlagwinkeln 6 geprüft
werden. Liegt das Dichtungsprofil 10 nicht dichtend
an den Anschlagwinkeln 6 an, kann Luft in die Prüfrinne 11
gelangen und wird über das Röhrchen 12 auf die andere Seite
der Filterzelle 9 geführt. Wird hier eine entsprechende
Meßeinrichtung an das Röhrchen 12 angeschlossen, so kann
ein derartiger Luftumweg festgestellt werden.The side walls 4 together form an insertion opening 7,
the
Im übrigen weist die Filterzelle 9 einen umlaufenden Holzrahmen
13 auf, auf dessen inneren Randkanten das Dichtungsprofil
10 aufliegt. Der Holzrahmen 13 umgrenzt das
eigentliche Filtermaterial 14.Otherwise, the
Der Festlegung der Filterzelle 9 dient eine Diagonalstrebe
15, welche in zwei sich diagonal gegenüberliegenden
Eckbereichen auf den Holzrahmen 13 gedrückt wird. Dies geschieht
mit Spezial-Eckwinkeln 16, wie sie in Figur 6
gezeigt sind. Jeder Eckwinkel 16 besteht aus zwei L-förmigen,
etwa senkrecht zueinander verlaufenden Winkelteilen,
wobei jeweils zwei waagerechte Streifen 17.1 und 17.2 sowie
zwei senkrecht verlaufende Streifen 18.1 und 18.2
miteinander verbunden sind. In Gebrauchslage greifen die
senkrecht verlaufenden Streifen 18.1 und 18.2 in Taschen
19.1 und 19.2 ein, die an den Innenflächen von benachbarten
Seitenwänden 4 festliegen. Die Taschen 19 werden der
Einfachheit halber durch jeweils ein Profil gebildet, von
dem ein Streifen um beinahe 180° abgebogen ist. Hierdurch
wird eine Einschuböffnung gebildet, in welche die senkrecht
verlaufenden Streifen 18.1 und 18.2 des Eckwinkels 16
eingeschoben werden können.A diagonal strut serves to fix the
Im Eckbereich wird der Eckwinkel 16 von einem Schraubenbolzen
20 durchdrungen, der einerseits einen Schraubenkopf
21 mit einer Sechskantöffnung 22 aufweist. Andererseits
besitzt dieser Schraubenbolzen 20 einen Stützfuß 23,
der in Gebrauchslage gegen die Diagonalstrebe 15 gedrückt
wird. Hierzu dreht der Schraubenbolzen 20 bevorzugt in einer
Gewindehülse 24, die mit dem Eckwinkel 16 verbunden
ist. Möglich ist auch, daß dem Eckwinkel 16 selbst eine
Bohrung mit einem Innengewinde eingeformt ist, so daß die
Gewindehülse 24 als Kontermutter benutzt werden kann.In the corner area, the
Die Diagonalstrebe dient der Festlegung eines Auslaßeinsatzes
25, wie er beispielsweise in der DE-OS 43 36 806.9
beschrieben ist. Hierbei weist der Auslaßeinsatz 25 ziffernblattartig
angeordnete, nicht näher gezeigte Luftschlitze
in einer Auslaßplatte 26 auf, wobei diesen Luftschlitzen
Luftlenklamellen 27 zugeordnet sind. Die Luftlenklamellen
27 erstrecken sich zwischen Lagerplättchen 28
und Halteplättchen 29. Durch entsprechende Öffnungen in den
Halteplättchen 29 ist ein Traversenkreuz 30 gesteckt, von
dem etwa mittig ein Gewindebolzen 31 aufragt. Dieser
Gewindebolzen 31 ist in die Diagonalstrebe 15 eingedreht,
wodurch der gesamte Auslaßeinsatz 25 in der Einschuböffnung
7 festgelegt wird. Dabei schlägt die Auslaßplatte 26
an den Randkanten 8 anThe diagonal strut is used to define an
Gemäß den Figuren 1 und 2 besitzt der Filterkasten R einen
rechteckigen Anschlußstutzen 32 an ein nicht näher gezeigtes
Luftführungssystem.According to Figures 1 and 2, the filter box R has one
Bevorzugt ist jedoch in der Seitenwand 4.3 ein runder Anschlußstutzen
32.1 gemäß den Figuren 3 bis 5 vorgesehen, in
dem sich eine Absperrklappe 33 befindet. Diese Absperrklappe
33 sitzt in zwei Drehbolzen 34.1 und 34.2, die jeweils
drehbar in der Wand des Anschlußstutzens 32.1 festgelegt
sind. An den Drehbolzen 34.2 schließt eine Drehstange
35 an, die in ein Winkelgehäuse 36 eingreift, welches
der Seitenwand 4.3 etwas unterhalb der Filterzelle 9
aufgesetzt ist. In dem Winkelgehäuse 36 ragt von der Drehstange
35 ein Stellhebel 37 ab, der, wie insbesondere aus
Figur 5 ersichtlich ist, durch die Einschuböffnung 7 zugänglich
ist. Durch Drehen dieses Stellhebels 37 kann die
Absperrklappe 33 geöffnet bzw. geschlossen werden. Dabei
ist bevorzugt die Lage des Stellhebels 37 im Verhältnis zu
der Filterzelle 9 bzw. dem Holzrahmen 13 so gewählt, daß
der Holzrahmen normalerweise ein Verstellen des Stellhebels
37 verhindert. Zum Verstellen des Stellhebels 37 muß
dieser etwas angehoben werden, damit er über eine obere
Randkante des Holzrahmens 13 gleiten kann.However, a round connecting piece is preferred in the side wall 4.3
32.1 provided according to FIGS. 3 to 5, in
which is a
Das Winkelgehäuse 36 kann auch nach unten offen sein, wie
dies in Figur 5 angedeutet ist. Auf diese Weise ist ein
Schließen der Absperrklappe 33 möglich, bevor der Auslaßeinsatz
25 entfernt wird.The
In Figur 4 ist angedeutet, daß die Absperrklappe 33 mit
einer Gummilippendichtung 38 versehen ist, damit ein
dichtes Verschließen des Anschlußstutzes 32.1 möglich wird.In Figure 4 it is indicated that the
Neben der Dichtsitzprüfeinrichtung durch das Röhrchen 12
kann noch ein Meßröhrchen zur Differenzdruckmessung angeordnet
sein. Dieses Röhrchen durchsetzt, in der Zeichnung
nicht gezeigt, einen Anschlagwinkel 6 und reicht nach unten
über die Filterzelle 9 hinaus. Wird an dieses Röhrchen ein
entsprechendes Meßgerät angeschlossen, so kann der Druck im
Filterkasten vor der Filterzelle gemessen und mit dem Druck
nach der Filterzelle verglichen werden.In addition to the tightness test device through the
Claims (2)
- Filter box having a housing (1), in which a filter element (9) with a frame (13) is supported against stop brackets (6), possibly via a sealing profile (10), the housing (1) having a connecting piece (32) communicating with an air circulation system, and corner brackets (16) detachably engaging in sockets (19), secured on the housing (1), in corner regions of the housing (1), a bolt (20) traversing the corner bracket (16) and pressing against the frame (13) of the filter element (9) on the other side of the sealing profile (10), characterised in that the bolt (20) presses on a diagonal strut (15), possibly via a supporting foot (23), said strut spanning the filter element (9), and an outlet insert (25) being connected to the diagonal strut (15) via a cross-piece member (30).
- Filter box according to claim 1, characterised in that a closure flap (33) is inserted in the connecting piece (32.1), the rotatable spindle of which flap is connected, via a rotatable bar (35), to an adjusting lever (37) externally of the connecting piece (32.1), the adjusting lever (37) engaging in the housing (1) beneath the filter element (9).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19519565 | 1995-05-27 | ||
DE19519565A DE19519565A1 (en) | 1995-05-27 | 1995-05-27 | Filter box |
PCT/EP1996/002035 WO1996037738A1 (en) | 1995-05-27 | 1996-05-11 | Filter box |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0828976A1 EP0828976A1 (en) | 1998-03-18 |
EP0828976B1 true EP0828976B1 (en) | 1999-07-28 |
Family
ID=7763077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96914203A Expired - Lifetime EP0828976B1 (en) | 1995-05-27 | 1996-05-11 | Filter box |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0828976B1 (en) |
AT (1) | ATE182671T1 (en) |
CZ (1) | CZ286822B6 (en) |
DE (2) | DE19519565A1 (en) |
ES (1) | ES2135228T3 (en) |
HU (1) | HU217514B (en) |
WO (1) | WO1996037738A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19611817C2 (en) * | 1996-03-26 | 2000-10-26 | Schako Metallwarenfabrik | Filter box |
DE102015106406A1 (en) | 2015-04-27 | 2016-10-27 | Schako Klima Luft Ferdinand Schad Kg | Filter box with a housing |
DE202016106003U1 (en) | 2016-10-25 | 2017-01-30 | Colandis Gmbh | Filter unit for fan filter modules in clean room applications |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1926569U (en) * | 1965-08-27 | 1965-11-04 | Concordia Elek Zitaets Ag | FRAME CONSTRUCTION AND CLAMPING DEVICE FOR FILTER MATS. |
US3360910A (en) * | 1966-05-31 | 1968-01-02 | Envirco Inc | Filter framing system |
DE6607500U (en) * | 1967-03-30 | 1971-04-08 | Intensiv Filter Gmbh | DEVICE FOR DUST SEPARATION USING FIBER FILTER ELEMENTS. |
DE7808587U1 (en) * | 1978-03-17 | 1978-07-06 | Delbag-Luftfilter Gmbh, 1000 Berlin | AIR EXHAUST DEVICE WITH FILTER AS CEILING OR WALL INSTALLATION FOR MICROBIOLOGICAL AIR CLEANING IN LIVING OR WORKING AREAS IN ASEPTIC ROOMS |
DD214298A1 (en) * | 1983-03-29 | 1984-10-10 | Dresden Lufttech Anlagen | FRAME FOR FILTER CASSETTES |
US4560395A (en) * | 1984-04-17 | 1985-12-24 | Environmental Air Control, Inc. | Compact blower and filter assemblies for use in clean air environments |
DE8710781U1 (en) * | 1987-05-16 | 1987-10-01 | Heinrich Nickel Gmbh, 5240 Betzdorf, De | |
DE3820788C2 (en) * | 1988-06-20 | 1994-06-30 | Kessler & Luch Gmbh | Device for inserting filter cells, in particular, into a grid ceiling formed from filter receiving profiles |
DE3941899A1 (en) * | 1989-12-19 | 1991-06-20 | Kessler & Luch Gmbh | AIR PERFORMANCE WITH FILTER |
DE4308399C2 (en) * | 1993-03-17 | 1995-12-21 | Gea Happel Klimatechnik | Device for attaching a filter frame |
DE4312959B4 (en) * | 1993-04-21 | 2005-12-29 | Heinrich Nickel Gmbh | Clean room ceiling |
-
1995
- 1995-05-27 DE DE19519565A patent/DE19519565A1/en not_active Withdrawn
-
1996
- 1996-05-11 HU HU9801134A patent/HU217514B/en not_active IP Right Cessation
- 1996-05-11 WO PCT/EP1996/002035 patent/WO1996037738A1/en active IP Right Grant
- 1996-05-11 EP EP96914203A patent/EP0828976B1/en not_active Expired - Lifetime
- 1996-05-11 AT AT96914203T patent/ATE182671T1/en active
- 1996-05-11 ES ES96914203T patent/ES2135228T3/en not_active Expired - Lifetime
- 1996-05-11 DE DE59602560T patent/DE59602560D1/en not_active Expired - Lifetime
- 1996-05-11 CZ CZ19973679A patent/CZ286822B6/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE19519565A1 (en) | 1996-11-28 |
WO1996037738A1 (en) | 1996-11-28 |
ATE182671T1 (en) | 1999-08-15 |
HUP9801134A2 (en) | 1998-08-28 |
DE59602560D1 (en) | 1999-09-02 |
CZ286822B6 (en) | 2000-07-12 |
ES2135228T3 (en) | 1999-10-16 |
CZ367997A3 (en) | 1999-05-12 |
EP0828976A1 (en) | 1998-03-18 |
HU217514B (en) | 2000-02-28 |
HUP9801134A3 (en) | 1998-09-28 |
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