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EP2564948A1 - Hotte et procédé de réduction de la concentration de substances toxiques - Google Patents

Hotte et procédé de réduction de la concentration de substances toxiques Download PDF

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Publication number
EP2564948A1
EP2564948A1 EP12162789A EP12162789A EP2564948A1 EP 2564948 A1 EP2564948 A1 EP 2564948A1 EP 12162789 A EP12162789 A EP 12162789A EP 12162789 A EP12162789 A EP 12162789A EP 2564948 A1 EP2564948 A1 EP 2564948A1
Authority
EP
European Patent Office
Prior art keywords
air
trigger
housing
supply
luftumlenkeinrichtung
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
EP12162789A
Other languages
German (de)
English (en)
Other versions
EP2564948B1 (fr
Inventor
Norbert Widmann
Michael Ulrich
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.)
GFP Gesellschaft fuer Produktivitaetsplanung und Produktentwicklung mbH
Original Assignee
GFP (GESELLSCHAFT fur PRODUKTIVITAETSPLANUNG UNDPRODUKTENTWICKLUNG)MBH
GFP Gesellschaft fuer Produktivitaetsplanung und Produktentwicklung mbH
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 GFP (GESELLSCHAFT fur PRODUKTIVITAETSPLANUNG UNDPRODUKTENTWICKLUNG)MBH, GFP Gesellschaft fuer Produktivitaetsplanung und Produktentwicklung mbH filed Critical GFP (GESELLSCHAFT fur PRODUKTIVITAETSPLANUNG UNDPRODUKTENTWICKLUNG)MBH
Publication of EP2564948A1 publication Critical patent/EP2564948A1/fr
Application granted granted Critical
Publication of EP2564948B1 publication Critical patent/EP2564948B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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

Definitions

  • the present invention further relates to a corresponding method for reducing the, in particular at a laboratory workstation or the like, existing pollutant concentration by means of at least one such deduction.
  • the European standard DIN EN 14175 places particular demands on all new fume cupboards (with the exception of the so-called fumigant and fume hoods in accordance with DIN 12924 Parts 2 and 3).
  • the most important requirements of DIN EN 14175 relate to the retention capacity, according to which deductions prevent any resulting pollutants from escaping and must retain them in the fume hood.
  • external influences such as a draft or the movement of persons, must not affect the performance of the fume cupboard.
  • the present invention has the object, a deduction of the type mentioned and a method of the type mentioned in such a way that the energy consumption is as low as possible.
  • the trigger according to the present invention is particularly intended for a laboratory workstation or the like and has a box-shaped housing, through which a chamber-shaped working space is limited.
  • this housing can be placed on a cabinet and form a structural unit with this. In other embodiments, however, can also be dispensed with such a cabinet.
  • the side of the fume hood, at which an opening for accessing the working chamber or the working space is provided referred to as the front side.
  • the remaining sides of the housing may nonetheless be configured with transparent walls, so that a view of the interior of the working chamber or of the working space is possible from each side including the back. In other embodiments, observation of the working chamber or working space may be possible only from a front side.
  • the front of the facing region of the bottom of the working chamber or the working space is associated with at least one Luftumlenk noticed for injection of supply air into the working chamber or in the working space.
  • the Heilumsch issued at least two mutually spaced Heileinströmötechnischen, which allows an energy-saving manner an individual and selective control and regulation of the supply of fresh air or supply air into the working chamber or in the working space.
  • the Beerumlenk issued is not a hollow airfoil part, that is not designed as a hollow profile; Also, the trigger according to the present invention on the side walls no hollow airfoil parts, that is no hollow profile.
  • each, air inlet is associated with at least one fan for acting on the Luftumlenk pain with air, which allows an energy-saving manner an individual and selective control and regulation of the supply of fresh air or supply air into the working chamber or in the working space.
  • the intensity of the supply of each air inlet opening with supply air is thus selectively controllable and / or controllable, because the air supply for the injection is not centrally, but by means of the respective at least one decentralized fan at the respective inflow or on respective blowing slot.
  • the method according to the present invention is based on the fact that the fresh air or supply air is blown into the working chamber or into the working space by means of at least two spaced-apart air inflow openings.
  • the trigger not only a rear, but a spatial, in particular also lateral suction.
  • the suction is therefore not limited to the rear or rear wall of the trigger, which has the effect of energy-saving effect, as less injection is required, namely only at the edge of the table or work table, but not on the side walls of the trigger.
  • the injection can be linked to the trigger control, so that the Discharge can be operated with the lowest possible amount of air, which is pleasing in terms of energy conservation.
  • the suction extending also on the side walls can be spatially controlled and / or controlled, for example as a function of or in cooperation with the blowing-in which is selective by means of the decentralized fans.
  • the intensity of the supply of each air inlet opening with supply air is expediently selectively controllable and / or controllable, for example as a function of the degree and / or the spatial distribution of the exhaust air extraction.
  • the present invention relates to the use of at least one trigger of the kind set out above and / or a method of the kind set forth above for reducing the pollutant concentration at a laboratory workstation or the like.
  • Fig. 1 to Fig. 3 illustrate the basic operation of the present invention, which is intended to reduce the pollutant concentration at a laboratory workstation and in principle based on an attachable to the user facing edge 22 of a worktop 20 Zu Kunststoffprofil 50.
  • Fig. 1 shown deduction 100 is placed on a cabinet 10 with foot 12 and forms with this a structural unit.
  • a lower cabinet 10 can be dispensed with.
  • the trigger 100 has on the lower cabinet 10 a box-shaped housing which limits a working chamber or a working space 14. At least one connection for a suction device is provided in the rear region of the working chamber or of the working chamber 14, wherein the suction opening 40 in accordance with FIG Fig. 1 is arranged behind a baffle 24.
  • a head cover is provided, which does not extend over the entire height of the working chamber or the working space 14, so that the trigger 100 on the front 32 has an opening which is defined by at least one, preferably two or three, Sliding window 34 can be opened and closed is / are.
  • the opening of the front sliding window (s) 34 is limited to half a meter.
  • the sash is intentionally unlocked by the user, for example by means of the grip element 36.
  • the housing of the trigger 100 is at least one, preferably two or three, in particular vertically displaceable window elements 34.
  • groove guides 38 can be provided, in which the window elements 34 are displaceably mounted.
  • the window elements 34 are preferably displaceable in such a way that all the window elements 34 in a central region of the trigger 100 can be pushed against each other at least partially overlapping. This makes it possible for a user to move the window elements 34 in the central region and to move his arms through an access opening thus obtained in the interior of the working space or the working chamber.
  • the suction is therefore not limited to the rear or rear wall 26 of the trigger 100; this has energy-saving effect, as less injection is required, namely only on the table edge 22 of the work table or floor 20th
  • the area of the working surface or the base 20 facing the front side 32 is assigned an air deflection device 50 designed as a supply air profile for injecting supply air Z into the working space or into the working chamber 14.
  • a non-bent base member 52 connects, the exemplary in Fig. 2B, Fig. 2C has five spaced air inlet openings 56, wherein according to the detailed view in Fig. 3
  • Each of the five inflow openings 56 has, by way of example, seven inflow slots 58 of different lengths.
  • the Zu povertyprofil 50 in its non-bent base part 52 in particular in the remote from the deflecting 60 free end portion of the base member 52, at least two, by way of example in Fig. 2B, Fig. 2C six recesses or holes for attachment of the Zu Kunststoffprofils 50 on the table edge 22 of the work table or floor 20.
  • the inflow openings 56 are uniformly spaced from one another in the region of the base part 52 facing the deflecting part 60 (cf. Fig. 2B, Fig. 2C ), and the two outer inlet openings 56 have the same distance to the respective side wall 28 of the trigger 100 as the inlet openings 56 with each other (see. Fig. 2B, Fig. 2C ).
  • each of these five inlet openings 56 is in each case a ventilator 70 (cf.
  • the intensity of the supply of each air inlet opening 56 with supply air Z is selectively controllable and / or controllable; More specifically, the extraction of the exhaust air is controlled and / or controlled as a function of or in cooperation with the injection of the incoming air Z, which is positive in terms of energy saving.

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  • Ventilation (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
EP12162789.7A 2011-09-02 2012-03-30 Hotte et procédé de réduction de la concentration de substances toxiques Not-in-force EP2564948B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011053241 2011-09-02

Publications (2)

Publication Number Publication Date
EP2564948A1 true EP2564948A1 (fr) 2013-03-06
EP2564948B1 EP2564948B1 (fr) 2016-07-27

Family

ID=46025410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12162789.7A Not-in-force EP2564948B1 (fr) 2011-09-02 2012-03-30 Hotte et procédé de réduction de la concentration de substances toxiques

Country Status (1)

Country Link
EP (1) EP2564948B1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2649727A (en) * 1951-01-04 1953-08-25 Donald L Snow Chemical fume hood
WO1998031481A1 (fr) * 1997-01-22 1998-07-23 Flow Safe, Inc. And Labcrafters Inc., Jointly Hotte a turbulences bistables
WO2001087506A1 (fr) * 2000-05-18 2001-11-22 The Regents Of The University Of California Hotte de laboratoire fermee a faible debit
US6461233B1 (en) * 2001-08-17 2002-10-08 Labconco Corporation Low air volume laboratory fume hood
DE10338284A1 (de) 2002-08-20 2004-03-04 E. Renggli Ag Abzug
DE10338287A1 (de) 2002-08-20 2004-03-04 E. Renggli Ag Abzug
EP1977837A1 (fr) * 2007-04-04 2008-10-08 Equip Labo Sorbonne de laboratoire
DE102008030029A1 (de) 2008-06-13 2009-12-17 GfP (Gesellschaft für Produktivitätsplanung und Produktentwicklung) mbH Abzug und Verfahren zum Verhindern eines Schadstoffausbruchs
DE102009002456A1 (de) * 2009-04-17 2010-10-21 Waldner Laboreinrichtungen Gmbh & Co. Kg Rahmenprofil für einen Laborabzug sowie ein ein derartiges Rahmenprofil umfassender Laborabzug mit Stützstrahltechnik

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2649727A (en) * 1951-01-04 1953-08-25 Donald L Snow Chemical fume hood
WO1998031481A1 (fr) * 1997-01-22 1998-07-23 Flow Safe, Inc. And Labcrafters Inc., Jointly Hotte a turbulences bistables
WO2001087506A1 (fr) * 2000-05-18 2001-11-22 The Regents Of The University Of California Hotte de laboratoire fermee a faible debit
US6461233B1 (en) * 2001-08-17 2002-10-08 Labconco Corporation Low air volume laboratory fume hood
DE10338284A1 (de) 2002-08-20 2004-03-04 E. Renggli Ag Abzug
DE10338287A1 (de) 2002-08-20 2004-03-04 E. Renggli Ag Abzug
EP1977837A1 (fr) * 2007-04-04 2008-10-08 Equip Labo Sorbonne de laboratoire
DE102008030029A1 (de) 2008-06-13 2009-12-17 GfP (Gesellschaft für Produktivitätsplanung und Produktentwicklung) mbH Abzug und Verfahren zum Verhindern eines Schadstoffausbruchs
DE102009002456A1 (de) * 2009-04-17 2010-10-21 Waldner Laboreinrichtungen Gmbh & Co. Kg Rahmenprofil für einen Laborabzug sowie ein ein derartiges Rahmenprofil umfassender Laborabzug mit Stützstrahltechnik

Also Published As

Publication number Publication date
EP2564948B1 (fr) 2016-07-27

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