EP1232805B1 - Mobile fume hood - Google Patents

Mobile fume hood Download PDF

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Publication number
EP1232805B1
EP1232805B1 EP02001935A EP02001935A EP1232805B1 EP 1232805 B1 EP1232805 B1 EP 1232805B1 EP 02001935 A EP02001935 A EP 02001935A EP 02001935 A EP02001935 A EP 02001935A EP 1232805 B1 EP1232805 B1 EP 1232805B1
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EP
European Patent Office
Prior art keywords
fume hood
exhaust air
media
hood
connection device
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
Application number
EP02001935A
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German (de)
French (fr)
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EP1232805A2 (en
EP1232805A3 (en
Inventor
Dieter Keibach
Jürgen Liebsch
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.)
Waldner Labor und Schuleinrichtungen GmbH
Original Assignee
Waldner Labor und Schuleinrichtungen 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 Waldner Labor und Schuleinrichtungen GmbH filed Critical Waldner Labor und Schuleinrichtungen GmbH
Priority to DK09151454.7T priority Critical patent/DK2055398T3/en
Priority to EP09151454.7A priority patent/EP2055398B1/en
Publication of EP1232805A2 publication Critical patent/EP1232805A2/en
Publication of EP1232805A3 publication Critical patent/EP1232805A3/en
Application granted granted Critical
Publication of EP1232805B1 publication Critical patent/EP1232805B1/en
Priority to CY20091100630T priority patent/CY1109147T1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L9/00—Supporting devices; Holding devices
    • B01L9/02—Laboratory benches or tables; Fittings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
    • B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/20—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for shielding the work area

Definitions

  • the invention relates to a trigger that meets all requirements of DIN 12924, Part 1.
  • Deductions according to DIN 12924, part 1 are work protection equipment, as used in laboratories of all kinds and educational institutions. In the operating state, such fume cupboards must prevent their construction and air routing, so that gases, vapors, aerosols and dusts in dangerous quantities or concentrations can escape from the fume cupboard interior into the laboratory and cause no dangerous explosive atmosphere to form inside the fume cupboard. Deductions according to DIN 12924, Part 1 must have the following design features.
  • the space above the worktop must be enclosed on all sides, connected to a technical ventilation system, at least clearly visible from the front and accessible, for example, via height-adjustable sashes or laterally movable windshields.
  • the pull-down base serves as a support structure for the table top and the hood construction and must allow a load capacity of the table top of at least 200 kg / m 2 .
  • the work surfaces should have a peripheral edge bead and be liquid-tight. The design and installation of the sash must ensure that the user can not be endangered by splashing of hazardous substances or flying parts and, in the case of a fault, by falling parts.
  • Vertically displaceable sashes must be infinitely adjustable, be held in any position and be secured by a construction that prevents falling in case of rope breakage.
  • the force required for vertical movement of the sash per meter of front width must not be allowed for prints with one-piece sash greater than 20 N, for fume hoods with multi-section (telescope) sashes no greater than 40 N.
  • Pipes laid in fume cupboards must be accessible.
  • the extraction points for water, gas, compressed air, vacuum, steam, etc. should be equipped with hose nozzles.
  • Safety glass, preferably laminated glass, or suitable plastic must be used for the window surfaces. All drainage units (funnels, basins, channels, etc.) must have their own odor trap.
  • a model of a trigger is a representative of the trigger design pattern, which is made with the intended properties for mass production.
  • the model of a trigger may e.g. characterized by its dimensions: width, depth and height of the deduction interior; Size and design of the sash (s); Position and dimensions of the baffle plate in the fume cupboard interior; Position and dimensions of the exhaust air collection duct; Location and size of the exhaust air duct and position and size of the column (s) and air device (s).
  • Other features that characterize a trigger are or may be: volume and control of airflow; Selection of installed materials; Execution of working surface or substructure as well as arrangement of the media supply.
  • the withdrawal is subjected to a type examination, in which the risk of break-out or retention, the explosion protection, the pressure loss of the trigger and the monitoring equipment are checked and it is determined whether the legal requirements are met.
  • US 3,041,957 A describes a device which is referred to in professional circles as Absaugbox.
  • the suction box is mounted on castors, but does not include a working space enclosed on all sides.
  • WO96 / 13344 A is a table with cover described which has no other media connections except for water. Furthermore, the cover provided with table is operated in the recirculation mode and not in the exhaust air mode.
  • DE 21 55 298 A relates to an experimental table for school purposes, which has no all-sided enclosed work space with a vertically movable window and media connections, which lead out from below from the work space and connected to corresponding stationary facilities.
  • DE 85 09 333 U1 refers to a fume cupboard whose working space enclosed on all sides but is not accessible via a vertically movable window.
  • window parts In order to gain access to the work space, window parts must be moved horizontally to the side, so that a user can reach through his hand through openings provided on the window parts.
  • the fume cupboard furthermore has no media connections, which are connected to stationary facilities on the building side. Since the air discharged from the work area is conveyed through an opening in the floor by means of a blower, the fume cupboard is not operated with exhaust air, but in recirculation mode.
  • the front area of the fume cupboard has a top wall which folds upwards in the event of an explosion, with the result that material is ejected predominantly forward and upwards.
  • the object underlying the invention is to provide a trigger of the type mentioned above, which meets all the requirements of DIN 12924, Part 1, that is to say equal in terms of its functions to a stationary standard print, and which is designed to be mobile.
  • the mobile trigger according to the invention thus has in particular media connections for the media sewage, gas, water and electrical energy as well as an exhaust air connection, which have heretofore been provided only as a complete equipment for stationary, floor-mounted fume hoods.
  • connection possibilities of the mobile trigger are optionally depending on the possible where the supply device is prepared by the customer. This can be the case on the floor, on the wall or on the ceiling. Due to the flexible connection lines, the mobile trigger is still movable even when already connected, wherein the mobility is achieved in particular by the arrangement of roles.
  • the mobile trigger is dimensioned and constructed so that it can be driven by normal provided in public buildings doors and thus can be used in different rooms.
  • a mobile trigger comprise a structure with a working space that can be opened and closed via a window 11 and the media via a different means 1 can be fed.
  • the trigger is mounted on wheels and thus movable.
  • the media connection device 1 consists at least of a complete set of media connections usual with standard prints. a. for fuel gas, (propane or inert gas), water, sewage, and electrical energy. Furthermore, an exhaust air connection is provided.
  • the window 11 for opening and closing the working space is formed as a two-part sliding window which is opened in opposite directions in the arrow direction, wherein the formation is such that the lower sliding window part is sunk down when opening down so that thereby arranged on the front panel 12 means for Actuating the media, in particular the valves are covered, so that when the sliding window is open, the operation of the media supply is not possible.
  • the trigger housing is in the lower part, for example, up to a height of 900 mm from wood, plastic and metal materials educated.
  • a single-pane safety glass is provided, which is, for example, 6 mm thick.
  • the front which has the two-part counter-rotating sliding window 11 is also glazed with toughened safety glass.
  • the lower part of the sliding window 11 is provided with transverse slides, so that the working space is accessible even in the closed state of the sliding window 11 via the cross slide.
  • the trigger housing is completely glued by means of an adhesive and positively connected with respect to certain structural components.
  • the provided on the trigger roles are partially detectable.
  • the media connection device 1 is provided with flexible hose connections, which lead out of the lower part of the trigger and can be accommodated in the storage space when they are not needed.
  • the connections can optionally lead out of the storage space on the left or right and can be connected via corresponding coupling devices to the hose connections with supplies that are provided in the room at any desired location.
  • the trigger can be equipped with all common media connections required by the user.
  • the exhaust air extraction is designed so that the exhaust air sucked into two partial streams, namely an exhaust air amount of about 30% directly above the table top 7 and about 70% of the exhaust air below the hood 4 and a through a glazed, hinged for cleaning baffle 6 formed pressure chamber 5 behind the baffle and in front of the rear wall of the trigger is guided down into a below the table top 7 suction chamber.
  • the exhaust air connection is made via flexible hoses to the exhaust air connection nozzles provided in the room.
  • a support fan 2 which introduces a Zu Kunststoffstützstrahl at the front edge of the worktop over the inflow, which is designed as a hollow profile, which is generated by means of a tube fan.
  • a modified form of air discharge is provided, in turn, the suction takes place in two partial streams above the table top 7 and below the roof 4 with a division of the exhaust air amount in about 30% and about 70% each of the total amount of exhaust air.
  • the sucked on the table top 7 exhaust air amount is passed through a below the table top 7 pressure chamber 14 and from there via in the side surfaces flush integrated air ducts 10 in a second located above the hood roof pressure chamber 8, in which also sucked directly below the hood 4 exhaust air volume to be led. From the pressure chamber 8, the exhaust air connection takes place by means of flexible hoses 9 either left or right through the trigger pages to the space provided in the exhaust port.
  • the air duct is reversed, so that the exhaust air, which is sucked in above the hood 4, is guided via the pressure chamber 8 and air ducts 13 down into the pressure chamber 14, in which is also the suctioned above the table top 7 exhaust air out.
  • the pressure chamber 14 is connected via corresponding hoses with the exhaust port of the room.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ventilation (AREA)
  • Outer Garments And Coats (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Superstructure Of Vehicle (AREA)
  • Prevention Of Fouling (AREA)
  • Optical Communication System (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Window Of Vehicle (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Gyroscopes (AREA)
  • Led Devices (AREA)
  • Air Bags (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Processing Of Terminals (AREA)
  • Tents Or Canopies (AREA)

Abstract

Mobile vacuum cabinet has working chamber with media hoses and connectors and air aspiration connection. Media connection (1) has complete series of media connections for all standard media and has flexible connection hoses for these extending from below extraction hood and with couplings for fixed supply connections. Media connections can extend from left or right sides of cabinet. Cabinet can have roller shutter (3) for closure.

Description

Die Erfindung betrifft einen Abzug, der sämtliche Erfordernisse der DIN 12924, Teil 1 erfüllt.The invention relates to a trigger that meets all requirements of DIN 12924, Part 1.

Abzüge nach der DIN 12924, Teil 1 sind Arbeitsschutzeinrichtungen, wie sie in Laboratorien aller Art und Ausbildungsstätten Verwendung finden. Solche Abzüge müssen im Betriebszustand durch Ihre Bauweise und Luftführung verhindern, dass Gase, Dämpfe, Aerosole und Stäube in gefährlicher Menge oder Konzentration aus dem Abzugsinneren in den Laborraum gelangen können und bewirken, dass sich im Abzugsinneren keine gefährliche explosionsfähige Atmosphäre ausbilden kann. Abzüge nach der DIN 12924, Teil 1 müssen folgende konstruktiven Merkmale aufweisen.Deductions according to DIN 12924, part 1 are work protection equipment, as used in laboratories of all kinds and educational institutions. In the operating state, such fume cupboards must prevent their construction and air routing, so that gases, vapors, aerosols and dusts in dangerous quantities or concentrations can escape from the fume cupboard interior into the laboratory and cause no dangerous explosive atmosphere to form inside the fume cupboard. Deductions according to DIN 12924, Part 1 must have the following design features.

Der Raum über der Arbeitsfläche muss allseitig umschlossen, an ein technisches Entlüftungssystem angeschlossen, mindestens von der Frontseite her gut überschaubar und z.B. über in der Höhe verstellbare Frontschieber oder seitlich verschiebbare Frontscheiben zugänglich sein. Der Abzugsunterbau dient als Tragkonstruktion für die Tischplatte und den Abzugsaufbau und muss eine Tragfähigkeit der Tischplatte von mindestens 200 kg/m2 zulassen. Die Arbeitsflächen sollen einen umlaufenden Randwulst haben und flüssigkeitsdicht sein. Die Ausführung und Befestigung des Frontschiebers muss sicherstellen, dass der Benutzer nicht durch Verspritzen gefährlicher Stoffe oder umherfliegender Teile und im Fehlerfalle nicht durch herabfallende Teile gefährdet werden kann. Lotrecht verschiebbare Frontschieber müssen stufenlos verstellbar sein, in jeder Lage gehalten werden und durch eine Konstruktion gesichert sein, die bei Seilbruch ein Herabfallen verhindert. Die zum lotrechten Verschieben des Frontschiebers erforderliche Kraft je laufendem Meter Frontbreite darf bei Abzügen mit einteiligem Frontschieber nicht größer sein als 20 N, bei Abzügen mit mehrteiligen (Teleskop) Frontschiebern nicht größer als 40 N. In Abzügen verlegte Rohrleitungen müssen zugänglich sein. Des Weiteren sollen die Entnahmestellen für Wasser, Gas, Druckluft, Vakuum, Dampf, usw. mit Schlauchtüllen ausgerüstet sein. Für die Fensterflächen ist Sicherheitsglas, vorzugsweise Verbundglas, oder geeigneter Kunststoff zu verwenden. Alle Entwässerungseinheiten (Trichter, Becken, Kanal, usw.) müssen mit einem eigenen Geruchsverschluss versehen sein.The space above the worktop must be enclosed on all sides, connected to a technical ventilation system, at least clearly visible from the front and accessible, for example, via height-adjustable sashes or laterally movable windshields. The pull-down base serves as a support structure for the table top and the hood construction and must allow a load capacity of the table top of at least 200 kg / m 2 . The work surfaces should have a peripheral edge bead and be liquid-tight. The design and installation of the sash must ensure that the user can not be endangered by splashing of hazardous substances or flying parts and, in the case of a fault, by falling parts. Vertically displaceable sashes must be infinitely adjustable, be held in any position and be secured by a construction that prevents falling in case of rope breakage. The force required for vertical movement of the sash per meter of front width must not be allowed for prints with one-piece sash greater than 20 N, for fume hoods with multi-section (telescope) sashes no greater than 40 N. Pipes laid in fume cupboards must be accessible. Furthermore, the extraction points for water, gas, compressed air, vacuum, steam, etc. should be equipped with hose nozzles. Safety glass, preferably laminated glass, or suitable plastic must be used for the window surfaces. All drainage units (funnels, basins, channels, etc.) must have their own odor trap.

Vor der Konformitätsbewertung muss ein Muster eines Abzugs einer sog. Baumusterprüfung unterzogen werden. Ein Baumuster eines Abzugs ist ein für die Abzugskonstruktion repräsentatives Muster, das mit den für die Serienfertigung vorgesehenen Eigenschaften hergestellt ist. Das Baumuster eines Abzugs kann z.B. durch seine Maße charakterisiert werden: Breite, Tiefe und Höhe des Abzuginnenraums; Größe und Ausführung des/der Frontschieber(s); Lage und Maße der Prallplatte im Abzuginnenraum; Lage und Maße des Abluftsammelkanals; Lage und Größe der Abluftführung sowie Lage und Größe von Spalte(n) und Lufteinrichtung(en). Andere Merkmale, die einen Abzug kennzeichnen, sind oder können sein: Volumen und Regelung der Luftströmung; Auswahl der verbauten Werkstoffe; Ausführung von Arbeitsfläche oder Unterbau sowie Anordnung der Medienversorgung. In Abhängigkeit vom jeweiligen Baumuster wird der Abzug einer Baumusterprüfung unterzogen, bei der die Schadstoffausbruchsicherheit bzw. das Rückhaltevermögen, der Explosionsschutz, der Druckverlust des Abzugs sowie die Überwachungseinrichtungen geprüft werden und festgestellt wird, ob die gesetzlichen Vorschriften erfüllt werden.Before the conformity assessment, a sample of a deduction must undergo a so-called type examination. A model of a trigger is a representative of the trigger design pattern, which is made with the intended properties for mass production. The model of a trigger may e.g. characterized by its dimensions: width, depth and height of the deduction interior; Size and design of the sash (s); Position and dimensions of the baffle plate in the fume cupboard interior; Position and dimensions of the exhaust air collection duct; Location and size of the exhaust air duct and position and size of the column (s) and air device (s). Other features that characterize a trigger are or may be: volume and control of airflow; Selection of installed materials; Execution of working surface or substructure as well as arrangement of the media supply. Depending on the respective type of construction, the withdrawal is subjected to a type examination, in which the risk of break-out or retention, the explosion protection, the pressure loss of the trigger and the monitoring equipment are checked and it is determined whether the legal requirements are met.

US 3,041,957 A beschreibt eine Vorrichtung, die in Fachkreisen als Absaugbox bezeichnet wird. Die Absaugbox ist auf Rollen montiert, umfasst allerdings keinen allseitig umschlossenen Arbeitsraum. US 3,041,957 A describes a device which is referred to in professional circles as Absaugbox. The suction box is mounted on castors, but does not include a working space enclosed on all sides.

In der WO96/13344 A ist ein Tisch mit Abdeckhaube beschrieben, der mit Ausnahme von Wasser keine weiteren Medienanschlüsse aufweist. Des Weiteren wird der mit Abdeckhaube versehene Tisch im Umluftbetrieb und nicht im Abluftbetrieb betrieben.In the WO96 / 13344 A is a table with cover described which has no other media connections except for water. Furthermore, the cover provided with table is operated in the recirculation mode and not in the exhaust air mode.

DE 21 55 298 A betrifft einen Experimentiertisch für Schulzwecke, der keinen allseitig umschlossenen Arbeitsraum mit einem vertikal verschiebbaren Fenster sowie Medienanschlüsse aufweist, die von unterhalb aus dem Arbeitsraum herausführen und an entsprechende stationäre Einrichtungen angeschlossen werden. DE 21 55 298 A relates to an experimental table for school purposes, which has no all-sided enclosed work space with a vertically movable window and media connections, which lead out from below from the work space and connected to corresponding stationary facilities.

DE 85 09 333 U1 betrifft einen Abzugschrank, dessen allseitig umschlossener Arbeitsraum jedoch nicht über ein vertikal verschiebbares Fenster zugänglich ist. Um Zugang zu dem Arbeitsraum zu erhalten, müssen Fensterteile horizontal zur Seite verschoben werden, so dass ein Benutzer mit seinen Händen durch an den Fensterteilen vorgesehene Aussparungen hindurch greifen kann. Der Abzugschrank weist des Weiteren keine Medienanschlüsse auf, die gebäudeseitig an stationäre Einrichtungen angeschlossen werden. Da die aus dem Arbeitstraum abgeführte Luft mittels eines Gebläses durch eine Öffnung im Boden hindurch gefördert wird, wird der Abzugsschrank nicht mit Abluft, sondern im Umluftbetrieb betrieben. Der vordere Bereich des Abzugschranks weist eine Deckwand auf, die im Falle einer Explosion nach oben hochklappt, mit der Folge, dass ein Ausschleudern von Material vorwiegend nach vorne und nach oben erfolgt. DE 85 09 333 U1 refers to a fume cupboard whose working space enclosed on all sides but is not accessible via a vertically movable window. In order to gain access to the work space, window parts must be moved horizontally to the side, so that a user can reach through his hand through openings provided on the window parts. The fume cupboard furthermore has no media connections, which are connected to stationary facilities on the building side. Since the air discharged from the work area is conveyed through an opening in the floor by means of a blower, the fume cupboard is not operated with exhaust air, but in recirculation mode. The front area of the fume cupboard has a top wall which folds upwards in the event of an explosion, with the result that material is ejected predominantly forward and upwards.

Somit erfüllt keine dieser Vorrichtungen sämtliche Vorschriften der DIN 12924, Teil 1.Thus, none of these devices meets all requirements of DIN 12924, Part 1.

Es sind mobile, insbesondere auf Rolltische aufgesetzte Geräte in Form von abgesaugten Kabinen bekannt, die als Medienanschlusseinrichtung lediglich mit Elektroanschlüssen versehen und hinsichtlich der Lufttechnik nicht unbedingt die Anforderungen nach DIN 12924, Teil 1 erfüllen. Sie sind somit nicht als vollwertige Abzüge anzusehen und einsetzbar.There are mobile, especially on rolling tables patched devices in the form of extracted cabins known that provided as a media connection device only with electrical connections and air technology not necessarily the requirements of DIN 12924, Part 1 fulfill. They are therefore not to be regarded as fully fledged prints and used.

Aus "For Tomorrow's Environment" in Prospekt, 3/2000, der Labcaire Systems LTD. in Clevedon, North Somerset, BS 2162 H, England ist bereits eine Sicherheitswerkbank mit einem Arbeitsraum bekannt, die mobil ausgebildet ist. Aus "Die neue Mobilität im Labor. Mobilien W 90." in Prospekt "Laborsystem Variolab", 2/94 der Fa. Waldner D-88239 Wangen ist weiterhin eine zwischen der bauseitigen Medienversorgung und den Abzügen in einem Laborraum angeordnete Medienversorgungseinrichtung bekannt, von der flexible Leitungen zu den jeweils zu versorgenden Abzügen führen.From "For Tomorrow's Environment" in Prospectus, 3/2000, the Labcaire Systems LTD. in Clevedon, North Somerset, BS 2162 H, England is already known a safety workbench with a working space that is designed mobile. From "The New Mobility in the Laboratory, Mobilien W 90." in brochure "Laboratory System Variolab", 2/94 of the company Waldner D-88239 Wangen is still a between the on-site media supply and the deductions in a laboratory room arranged media supply device known to lead from the flexible lines to the respective deductions to be supplied.

Die der Erfindung zugrunde liegende Aufgabe besteht darin, einen Abzug der eingangs genannten Art zu schaffen, der sämtlicher Erfordernisse der DIN 12924, Teil 1 erfüllt, das heißt hinsichtlich seiner Funktionen einem stationären Standardabzug gleichzusetzen ist, und der mobil ausgestaltet ist.The object underlying the invention is to provide a trigger of the type mentioned above, which meets all the requirements of DIN 12924, Part 1, that is to say equal in terms of its functions to a stationary standard print, and which is designed to be mobile.

Diese Aufgabe wird gemäß der Erfindung durch die Merkmalskombination des Anspruches 1 gelöst. Bevorzugte Ausgestaltungen der Erfindung sind in den abhängigen Patentansprüchen 2 bis 4 festgelegt.This object is achieved according to the invention by the combination of features of claim 1. Preferred embodiments of the invention are defined in the dependent claims 2 to 4.

Der erfindungsgemäße mobile Abzug weist somit insbesondere Medienanschlüsse für die Medien Abwasser, Gas, Wasser und elektrische Energie sowie einen Abluftanschluss auf, die bisher nur bei stationären, am Boden befestigten Abzügen als komplette Ausstattung vorgesehen sind.The mobile trigger according to the invention thus has in particular media connections for the media sewage, gas, water and electrical energy as well as an exhaust air connection, which have heretofore been provided only as a complete equipment for stationary, floor-mounted fume hoods.

Aufgrund der Anordnung der flexiblen Anschlussleitungen, die wahlweise am Unterteil rechts und links herausgeführt werden können, sind Anschlussmöglichkeiten des mobilen Abzuges wahlweise je nach dem möglich, wo die Versorgungseinrichtung bauseitig vorbereitet ist. Das kann am Fußboden, an der Wand oder an der Decke der Fall sein. Aufgrund der flexiblen Anschlussleitungen ist der mobile Abzug auch im bereits angeschlossenen Zustand noch beweglich, wobei die Mobilität insbesondere durch die Anordnung von Rollen erzielt wird.Due to the arrangement of the flexible connection cables, which can be optionally led out on the lower part right and left, connection possibilities of the mobile trigger are optionally depending on the possible where the supply device is prepared by the customer. This can be the case on the floor, on the wall or on the ceiling. Due to the flexible connection lines, the mobile trigger is still movable even when already connected, wherein the mobility is achieved in particular by the arrangement of roles.

Vorzugsweise ist der mobile Abzug so dimensioniert und aufgebaut, dass er durch normale in öffentlichen Gebäuden vorgesehene Türen gefahren werden kann und somit in verschiedenen Räumen nutzbar ist.Preferably, the mobile trigger is dimensioned and constructed so that it can be driven by normal provided in public buildings doors and thus can be used in different rooms.

Im Folgenden werden anhand der zugehörigen Zeichnungen besonders bevorzugte Ausführungsbeispiele des erfindungsgemäßen Abzuges näher beschrieben. Es zeigen

  • Figur 1 in einer perspektivischen Ansicht ein erstes Ausführungsbeispiel,
  • Figur 2 in einer perspektivischen Ansicht ein zweites Ausführungsbeispiel und
  • Figur 3 in einer perspektivischen Ansicht ein drittes Ausführungsbeispiel.
In the following, particularly preferred embodiments of the trigger according to the invention will be described in detail with reference to the accompanying drawings. Show it
  • FIG. 1 in a perspective view of a first embodiment,
  • FIG. 2 in a perspective view, a second embodiment and
  • FIG. 3 in a perspective view, a third embodiment.

Die in den Zeichnungen dargestellten Ausführungsbeispiele eines mobilen Abzuges umfassen einen Aufbau mit einem Arbeitsraum, der über ein Fenster 11 geöffnet und geschlossen werden kann und dem über eine Medienanschlußeinrichtung 1 verschiedene Medien zuführbar sind.The illustrated in the drawings embodiments of a mobile trigger comprise a structure with a working space that can be opened and closed via a window 11 and the media via a different means 1 can be fed.

Der Abzug ist auf Rollen montiert und damit beweglich.The trigger is mounted on wheels and thus movable.

Die Medienanschlußeinrichtung 1 besteht wenigstens aus einem kompletten bei Standardabzügen üblichen Satz von Medienanschlüssen u. a. für Brenngas, (Propan oder Edelgas), Wasser, Abwasser, und elektrischer Energie. Weiterhin ist ein Abluftanschluß vorgesehen.The media connection device 1 consists at least of a complete set of media connections usual with standard prints. a. for fuel gas, (propane or inert gas), water, sewage, and electrical energy. Furthermore, an exhaust air connection is provided.

Das Fenster 11 zum Öffnen und Schließen des Arbeitsraumes ist als zweiteiliges Schiebefenster ausgebildet, das gegenläufig in Pfeilrichtung geöffnet wird, wobei die Ausbildung derart ist, daß der untere Schiebefensterteil beim Öffnen soweit nach unten versenkt wird, daß dadurch die an der Frontblende 12 angeordneten Einrichtungen zum Betätigen der Medien insbesondere die Ventile überdeckt sind, so daß bei geöffnetem Schiebefenster die Betätigung der Medienzuführung nicht möglich ist. Hierdurch ergibt sich eine hohe passive Sicherheit für den Betreiber, da der Benutzer gezwungen ist, den Abzug zu schließen, um mit den Arbeitsvorgängen beispielsweise den Versuchen im Arbeitsraum zu beginnen und die Medien freizugeben.The window 11 for opening and closing the working space is formed as a two-part sliding window which is opened in opposite directions in the arrow direction, wherein the formation is such that the lower sliding window part is sunk down when opening down so that thereby arranged on the front panel 12 means for Actuating the media, in particular the valves are covered, so that when the sliding window is open, the operation of the media supply is not possible. This results in a high level of passive safety for the operator, since the user is forced to close the trigger, to begin the operations, for example, the attempts in the work space and release the media.

Das Abzugsgehäuse ist im unteren Teil beispielsweise bis auf eine Höhe von 900 mm aus Holz-, Kunstoff- und Metallwerkstoffen gebildet. Am oberen Bereich, das heißt beispielsweise ab einer Höhe von 900 mm bis zur Oberkante des Abzuges ist seitlich und hinten ein Einscheibensicherheitsglas vorgesehen, das beispielsweise 6 mm dick ist. Die Front, die das zweiteilige gegenläufige Schiebefenster 11 aufweist ist ebenfalls mit Einscheibensicherheitsglas verglast. Der untere Teil des Schiebefensters 11 ist mit Querschiebern versehen, so daß der Arbeitsraum auch im geschlossenen Zustand des Schiebefensters 11 über die Querschieber zugänglich ist.The trigger housing is in the lower part, for example, up to a height of 900 mm from wood, plastic and metal materials educated. At the top, that is, for example, from a height of 900 mm to the top of the trigger side and rear a single-pane safety glass is provided, which is, for example, 6 mm thick. The front, which has the two-part counter-rotating sliding window 11 is also glazed with toughened safety glass. The lower part of the sliding window 11 is provided with transverse slides, so that the working space is accessible even in the closed state of the sliding window 11 via the cross slide.

Am unteren Teil des Abzuges befindet sich ein Stauraum, der rechts und links über Querrolläden 3 zugänglich ist.At the lower part of the deduction is a storage space, which is accessible to the right and left via transverse roller blinds 3.

Das Abzuggehäuse ist mittels eines Klebers komplett verklebt und bezüglich bestimmter tragender Bauteile kraftschlüssig verbunden.The trigger housing is completely glued by means of an adhesive and positively connected with respect to certain structural components.

Die am Abzug vorgesehenen Rollen sind teilweise feststellbar.The provided on the trigger roles are partially detectable.

Die Medienanschlußeinrichtung 1 ist mit flexiblen Schlauchanschlüssen versehen, die aus dem unteren Teil des Abzuges herausführen und im Stauraum untergebracht werden können, wenn sie nicht benötigt werden. Die Anschlüsse können wahlweise links oder rechts aus dem Stauraum herausführen und über entsprechende Kupplungseinrichtungen an den Schlauchanschlüssen mit Versorgungen verbunden werden, die im Raum an beliebiger Stelle vorgesehen sind.The media connection device 1 is provided with flexible hose connections, which lead out of the lower part of the trigger and can be accommodated in the storage space when they are not needed. The connections can optionally lead out of the storage space on the left or right and can be connected via corresponding coupling devices to the hose connections with supplies that are provided in the room at any desired location.

Abgesehen von den üblichen Standardmedienanschlüssen kann der Abzug mit allen gebräuchlichen Medienanschlüssen ausgestattet sein, die vom Benutzer gefordert werden.Apart from the usual standard media connections, the trigger can be equipped with all common media connections required by the user.

Wie es weiterhin in Figur 1 dargestellt ist, ist die Abluftabsaugung so ausgebildet, daß die Abluft in zwei Teilströmen, nämlich einer Abluftmenge von etwa 30 % direkt über die Tischplatte 7 und etwa 70 % der Abluftmenge unterhalb des Abzugdaches 4 angesaugt und über eine durch eine verglaste, zu Reinigungszwecken abklappbare Prallwand 6 gebildete Druckkammer 5 hinter der Prallwand und vor der Rückwand des Abzugs nach unten in eine unterhalb der Tischplatte 7 liegende Ansaugkammer geführt wird. Von dort erfolgt der Abluftanschluss mittels flexibler Schläuche an die im Raum vorgesehenen Abluftanschlusstutzen.As it continues in FIG. 1 is shown, the exhaust air extraction is designed so that the exhaust air sucked into two partial streams, namely an exhaust air amount of about 30% directly above the table top 7 and about 70% of the exhaust air below the hood 4 and a through a glazed, hinged for cleaning baffle 6 formed pressure chamber 5 behind the baffle and in front of the rear wall of the trigger is guided down into a below the table top 7 suction chamber. From there, the exhaust air connection is made via flexible hoses to the exhaust air connection nozzles provided in the room.

Zur Unterstützung der Abführung schwerer Gase auf der Tischplatte 7 ist ein Stützventilator 2 vorgesehen, der an der Vorderkante der Arbeitsplatte über das Einströmprofil, das als Hohlprofil ausgebildet ist, einen Zuluftstützstrahl einbringt, der mittels eines Rohrlüfters erzeugt wird.To support the discharge of heavy gases on the table top 7, a support fan 2 is provided which introduces a Zuluftstützstrahl at the front edge of the worktop over the inflow, which is designed as a hollow profile, which is generated by means of a tube fan.

Die Anordnung und Ausbildung der Ansaugöffnungen, sowie die oben beschriebene Luftführung bewirken, daß der Abzug mit einer Mindestluftmenge von nur 300 m3/h betreibbar ist, was entsprechende Einsparungen gegenüber üblichen Abzügen bedeutet, die mit einer Mindestluftmenge von ca. 350 bis 400 m3/h arbeiten.The arrangement and design of the intake ports, as well as the above-described air duct effect that the trigger with a minimum air flow of only 300 m 3 / h is operable, which means corresponding savings compared to conventional deductions, with a minimum air flow of about 350 to 400 m 3 / h work.

Bei dem in Figur 2 dargestellten Ausführungsbeispiel ist eine abgewandelte Form der Luftabführung vorgesehen, bei der wiederum die Absaugung in zwei Teilströmen über der Tischplatte 7 und unterhalb des Abzugsdaches 4 mit einer Aufteilung der Abluftmenge in etwa 30 % und etwa 70 % jeweils der gesamten Abluftmenge erfolgt.At the in FIG. 2 illustrated embodiment, a modified form of air discharge is provided, in turn, the suction takes place in two partial streams above the table top 7 and below the roof 4 with a division of the exhaust air amount in about 30% and about 70% each of the total amount of exhaust air.

Die an der Tischplatte 7 angesaugte Abluftmenge wird über eine unterhalb der Tischplatte 7 liegende Druckkammer 14 und von dort über in den Seitenflächen bündig integrierte Luftkanäle 10 in eine zweite oberhalb des Abzugdaches befindliche Druckkammer 8 geführt, in die gleichfalls die direkt unterhalb des Abzugdaches 4 angesaugte Abluftmenge geführt wird. Von der Druckkammer 8 erfolgt der Abluftanschluss mittels flexibler Schläuche 9 wahlweise links oder rechts durch die Abzugseiten an die im Raum vorgesehenen Abluftanschlußstutzen.The sucked on the table top 7 exhaust air amount is passed through a below the table top 7 pressure chamber 14 and from there via in the side surfaces flush integrated air ducts 10 in a second located above the hood roof pressure chamber 8, in which also sucked directly below the hood 4 exhaust air volume to be led. From the pressure chamber 8, the exhaust air connection takes place by means of flexible hoses 9 either left or right through the trigger pages to the space provided in the exhaust port.

Bei dem in Figur 3 dargestellten Ausführungsbeispiel ist die Luftführung umgekehrt, so daß die Abluft, die oberhalb des Abzugdaches 4 angesaugt wird, über die Druckkammer 8 und Luftkanäle 13 nach unten in die Druckkammer 14 geführt wird, in die auch die oberhalb der Tischplatte 7 angesaugte Abluft geführt wird. Die Druckkammer 14 ist über entsprechende Schläuche mit dem Abluftstutzen des Raumes verbindbar.At the in FIG. 3 illustrated embodiment, the air duct is reversed, so that the exhaust air, which is sucked in above the hood 4, is guided via the pressure chamber 8 and air ducts 13 down into the pressure chamber 14, in which is also the suctioned above the table top 7 exhaust air out. The pressure chamber 14 is connected via corresponding hoses with the exhaust port of the room.

Den oben beschriebenen Ausführungsbeispielen des erfindungsgemäßen Abzuges ist es gleichfalls gemeinsam, daß innenliegende und von außen abschaltbare Steckdosen vorgesehen sind und daß die Ablufteinschaltung über im Abzugspfosten eingebaute Funktionsanzeigen mit Ablufteinschaltung mittels Funkübertragung zur Schnittstelle im Elektrounterverteiler im Unterrichts- oder Laborraum erfolgt.The above-described embodiments of the trigger of the invention, it is also common that internal and externally disconnectable sockets are provided and that the Ablufteinstaltung built in Abzugspfosten function displays with Ablufteinschaltung by radio transmission to the interface in the electrical subdistributor in the classroom or laboratory.

Claims (4)

  1. Fume hood, which complies with all the requirements of DIN 12924 part 1, with a fully contained workspace, which can be opened through a vertically sliding window (11), a medium connection device (1), which contains a complete set of medium connections as required by the user for medium supply and discharge to and from the workroom, and an exhaust air connection device (2, 4, 5, 6, 9, 10, 14), in which
    - the fume hood is provided with castors on the bottom, and
    - the medium connection device (1) and exhaust air connection device (2, 4, 5, 6, 9, 10, 14) are provided with flexible connecting lines and couplings for connection to corresponding static devices, in which at least the medium connection lines (1) lead out of the fume hood from below the workspace and the exhaust air connection device (2, 4, 5, 6, 9, 10, 14) is formed so that the hood can be operated at a minimum exhaust air flow of 300 m3/h, which on the one hand complies with the requirements of DIN 12924 part 1 and on the other hand allows a flexible arrangement of the connecting lines and therefore a mobile arrangement of the fume hood.
  2. Fume hood according to claim 1, in which the medium connection lines (1) lead out either on the right or the left side of the hood.
  3. Fume hood according to claim 1 or 2, in which the connecting lines can be housed in storage compartments at the bottom of the hood, which can be opened and closed by roller shutters (3).
  4. Fume hood according to any of the foregoing claims, in which a hollow section is provided at a front edge of the worktop through, which a supply air support jet can be introduced into the workroom for discharge of heavy gases from the room.
EP02001935A 2001-02-16 2002-01-31 Mobile fume hood Expired - Lifetime EP1232805B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DK09151454.7T DK2055398T3 (en) 2001-02-16 2002-01-31 Mobile exhaust
EP09151454.7A EP2055398B1 (en) 2001-02-16 2002-01-31 Mobile fume hood
CY20091100630T CY1109147T1 (en) 2001-02-16 2009-06-12 MOBILE GAS OUTPUT

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10107371 2001-02-16
DE10107371A DE10107371A1 (en) 2001-02-16 2001-02-16 Mobile deduction

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP09151454.7A Division EP2055398B1 (en) 2001-02-16 2002-01-31 Mobile fume hood

Publications (3)

Publication Number Publication Date
EP1232805A2 EP1232805A2 (en) 2002-08-21
EP1232805A3 EP1232805A3 (en) 2004-02-04
EP1232805B1 true EP1232805B1 (en) 2009-05-27

Family

ID=7674334

Family Applications (2)

Application Number Title Priority Date Filing Date
EP02001935A Expired - Lifetime EP1232805B1 (en) 2001-02-16 2002-01-31 Mobile fume hood
EP09151454.7A Expired - Lifetime EP2055398B1 (en) 2001-02-16 2002-01-31 Mobile fume hood

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP09151454.7A Expired - Lifetime EP2055398B1 (en) 2001-02-16 2002-01-31 Mobile fume hood

Country Status (7)

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EP (2) EP1232805B1 (en)
AT (1) ATE432129T1 (en)
CY (1) CY1109147T1 (en)
DE (2) DE10107371A1 (en)
DK (2) DK2055398T3 (en)
ES (2) ES2509885T3 (en)
PT (2) PT2055398E (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20202026U1 (en) * 2002-02-11 2003-06-26 Tillmanns Kurt Purification of air has air flow directed through micro-organism reducing stage and filter
DE202004001673U1 (en) 2004-02-04 2004-04-15 Waldner Labor- Und Schuleinrichtungen Gmbh Laboratory bench
DE102010051364A1 (en) * 2010-11-13 2012-05-16 Waldner Laboreinrichtungen Gmbh & Co. Kg Exhausting apparatus used in laboratory, has loading unit that is electrostatically loaded at limiting surface of working area, for ionization of airflow created by ventilator arrangement

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE623193A (en) *
US3041957A (en) * 1959-08-14 1962-07-03 Lab Furniture Company Inc Mobile laboratory
DE2155298C3 (en) * 1971-11-06 1975-09-04 Meteor-Siegen Apparatebau Paul Schmeck Gmbh, 5900 Siegen Mobile experiment table for teaching purposes or the like
JPS4955560A (en) * 1972-10-02 1974-05-29
US3747505A (en) * 1972-02-18 1973-07-24 American Hospital Supply Corp Air flow system for fume hood
NL7512693A (en) * 1975-10-30 1977-05-03 Schaik & Berghuis Fume cupboard made and supplied in two sections - one carrying the service connections for easy access and alteration
US4345615A (en) * 1980-03-13 1982-08-24 Kay Plastic Products, Inc. Multiphase modular chemical processing station
DE8509333U1 (en) * 1985-03-28 1985-08-22 Drake, Francois Prosper Fernand John, London Laboratory fume cupboard
DK158776C (en) * 1985-05-28 1990-12-24 Joergen Aakjaer STEAMBOARD TYPE WORKBOARD WITH MOVABLE GLASS FRONT
DE4040723C2 (en) * 1990-12-19 1996-01-25 Waldner Laboreinrichtungen Fume hood
GB2294395B (en) * 1994-10-26 1998-03-04 Robert Knight Ventilated enclosures
DE19601468B4 (en) * 1995-02-09 2005-02-10 Hohenloher Spezialmöbelwerk Schaffitzel GmbH + Co. demonstration cabinet
DE29902130U1 (en) * 1999-02-10 1999-04-08 Würth Elektronik GmbH & Co. KG, 74676 Niedernhall Establishment as a laboratory with at least one laboratory workplace

Also Published As

Publication number Publication date
EP1232805A2 (en) 2002-08-21
DK1232805T3 (en) 2009-08-31
ATE432129T1 (en) 2009-06-15
EP1232805A3 (en) 2004-02-04
EP2055398B1 (en) 2014-08-06
EP2055398A3 (en) 2010-04-07
DE10107371A1 (en) 2002-09-05
PT1232805E (en) 2009-06-04
ES2323764T3 (en) 2009-07-24
CY1109147T1 (en) 2014-07-02
DE50213569D1 (en) 2009-07-09
PT2055398E (en) 2014-10-22
EP2055398A2 (en) 2009-05-06
ES2509885T3 (en) 2014-10-20
DK2055398T3 (en) 2014-11-03

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