EP2618931B1 - Abzugvorrichtung mit gasreinigung - Google Patents

Abzugvorrichtung mit gasreinigung Download PDF

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Publication number
EP2618931B1
EP2618931B1 EP11782558.8A EP11782558A EP2618931B1 EP 2618931 B1 EP2618931 B1 EP 2618931B1 EP 11782558 A EP11782558 A EP 11782558A EP 2618931 B1 EP2618931 B1 EP 2618931B1
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EP
European Patent Office
Prior art keywords
air flow
air
ionising
extractor apparatus
working area
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.)
Active
Application number
EP11782558.8A
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German (de)
English (en)
French (fr)
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EP2618931A1 (de
Inventor
Ulrich Gärtner
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 Laboreinrichtungen GmbH and Co KG
Original Assignee
Waldner Laboreinrichtungen GmbH and Co KG
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
Priority claimed from DE102010051364A external-priority patent/DE102010051364A1/de
Application filed by Waldner Laboreinrichtungen GmbH and Co KG filed Critical Waldner Laboreinrichtungen GmbH and Co KG
Priority to PL11782558T priority Critical patent/PL2618931T3/pl
Publication of EP2618931A1 publication Critical patent/EP2618931A1/de
Application granted granted Critical
Publication of EP2618931B1 publication Critical patent/EP2618931B1/de
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    • 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
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L1/00—Enclosures; Chambers
    • B01L1/04—Dust-free rooms or enclosures

Definitions

  • the invention relates to a trigger device, in particular a fume hood device, with a working area and with a fan arrangement for generating an air flow or an inlet opening for an air flow for transporting away gases and / or particles from the work area and with at least one surface bounding the work area according to the preamble of Claim 1.
  • Such a take-off device is for example off US 2,709,954 or US 4,864,459 known.
  • a trigger device which is used for example for laboratories, for example, is off DE 201 06 395 U1 known.
  • the extraction device has a working chamber, which is closed on the front side by a door.
  • a vent is provided, for which a fan assembly is required.
  • pure active ingredients in their production, in fine dusts or even the handling of aerosols, however, there is the problem that a pure vent or the production of air flow may not be sufficient to a reliable removal of the gases and / or to ensure particles from the work area. This can lead to contamination of the environment of the trigger, but especially to a danger to persons who use the trigger device, eg as a laboratory workstation.
  • a trigger device according to the technical teaching of claim 1 is provided.
  • a basic idea of the invention is to influence the electrical properties of the discharge device and / or the air flow with the aid of the charging means in such a way that, in particular, particles are conveyed away from the work area particularly well. This reduces the risk that a user of the trigger device suffers health damage.
  • a particularly preferred field of use is the production, testing, research of pure active ingredients, in particular powdered active ingredients. Even toxic fine dusts can be optimally bound and carried away in the manner according to the invention. With regard to aerosols, the invention is particularly advantageous.
  • electrostatically charge one or more surfaces the combination of both measures is particularly advantageous. It is understood that not only electrostatically chargeable surfaces may be present, but also electrostatically non-chargeable surfaces. Furthermore, it is possible to provide only an ionization of the air flow in a discharge device according to the invention, while an influence of the surfaces by electrostatic measures does not take place. This means that a per se electrostatically neutral or at least not defined electrostatically charged trigger device with Help the ionized air flow according to the invention can be optimally vented.
  • the electrostatically chargeable surface comprises, for example, a side wall surface, a bottom surface provided for depositing objects, or also an inner surface or outer surface of a support element.
  • Electrostatic chargeability of the surfaces can be provided, for example, that they are made of metal or provided with an electrically conductive layer.
  • the at least one zone comprises, for example, a working zone and a marginal zone which laterally delimits the working zone, in particular annularly or partially annularly.
  • the working zone is located in the center of the working area and is surrounded by the peripheral zone in a ring shape.
  • the working zone and the edge zone are electrostatically chargeable, but with different electrical polarity.
  • the trigger device expediently has air-conducting means for guiding the air flow or a part of the air flow along the at least one surface.
  • this surface is a sidewall surface or a floor surface, in particular the work surface of the work area.
  • the charging means ionize the air flow, for example electrically charging, electrically discharging or, more preferably neutralizing, this electrically conditioned air flow along at least one surface, for example the bottom surface and / or a side wall surface of the working region, in particular a working chamber, is guided along or flows along to electrically condition this respective surface, for example, to neutralize.
  • the neutralization is effected, in particular, by a mean time neutral ionization, e.g. alternating with + 6kV and - 6 kV.
  • air-steering means or air guiding means are provided, for example, steering surfaces and / or aligned air outlets, from which the electrically conditioned air flow exits and flows along the respective surface.
  • An ionized, in particular electrically neutral, air stream flowing along the surface also has the advantage that it not only electrically adjusts the surface, so that no particles or at least only a few particles adhere there, but at the same time the respective particles are conveyed away from the surface ,
  • the wall surface is connected to an electrical potential, for example neutralized.
  • an electrically nonconductive material for example a plastic surface, can be neutralized or charged to a predetermined potential or discharged by the air flow.
  • electrically condition the surface not only by means of the ionized, for example neutralized, air stream, but also by an additionally applied electrical potential.
  • parts of the air flow are ionized or are electrically neutralized by ionization. It is also possible that different air streams flow through the working chamber or work area or flow along the respective wall surfaces, e.g. at least one first air stream is ionized while at least one other, second air stream is not ionized.
  • the work area is conveniently limited by one or more walls.
  • the withdrawal device has a working chamber which encompasses or limits the working area.
  • the working chamber is expediently accessible through an access opening, to the closure or security of several, individually or in combination meaningful measures are possible.
  • the working chamber can be closed by a door, which can also be referred to as a "window".
  • This door is e.g. around a hinged door, but expediently to a sliding door.
  • a multipart door, a folding door or the like is possible.
  • several doors may be provided to close the access opening.
  • air curtain or more air curtains that protect the operator.
  • air-guiding measures can advantageously be provided on the door such that when the door is opened an additional airflow occurring in the direction of the interior of the working chamber occurs. Thus, particles or gases will be removed from the access port, i. away from an operator, so that it is protected.
  • a variant of the invention provides that the working area can be vented via one or more ventilation openings.
  • a filter is provided, with the particles, gas components or the like, are ausfilterbar.
  • the air flow can flow away from the working area or away from the working area in the direction of the vent opening and be led away from it through the take-off device.
  • the trigger device an exhaust port, which is connectable to an exhaust duct system.
  • the on-site ionization device i. for example, directly to an airflow outlet, which opens into the work area, in particular the working chamber, to arrange.
  • the air or air flow on-site i. ionized immediately before leaving the work area.
  • the ionization device or the charging means which comprise an ionization device, at an airflow outlet of the fan arrangement.
  • the charging means in particular the ionization device, is expediently designed to ionize the air flow with different polarity.
  • the ionization device changes the polarity at intervals.
  • Particle accumulations on a surface e.g. the work area, a side wall or the like, be prevented or removed.
  • the ionization takes place in such a way that the electrical charge in the local means and / or time means is "zero", ie that the charging means charge or apply surfaces of the triggering device locally and / or temporally with alternating polarity, so that they are electrically neutral in local means and / or temporal mean.
  • This measure is of course also useful when ionizing or charging the air flow or parts of the air flow, ie that the air flow or air flow components are electrically neutral in time average, for example, parts of the air flow from the charging means be charged or ionized with alternating electrical polarity and / or be charged by the charging means locally adjacent to each other with different polarity or ionized. It is possible, for example, that locally next to each other electrically positively charged and electrically negatively charged air streams mix with each other, so that a total of an electrically neutral air flow is formed.
  • an ionized and a non-ionized air stream and / or ionized with different polarity air streams can mix with each other, for example, if the trigger has corresponding juxtaposed outflow, from which the different air streams flow and thus can mix with each other.
  • the extraction device can be used with both ionized air and ionized air, i. Conventionally, operated.
  • the ionization device is only turned off or on.
  • a channel arrangement For distributing the air flow and / or for receiving the air flow from the working area a channel arrangement is expediently provided. It is understood that both for distributing the airflow to the work area and for receiving the airflow from the work area, i. for venting, separate channel arrangements can be provided.
  • the channel arrangement comprises shipsleitprofile and / or support elements, such as support profiles, a surrounding the work area housing or a door for closing the work area (or both).
  • the air guide profiles and / or Support elements include air ducts and / or air outlet for the air flow.
  • the air guide profiles or support elements are guide profiles or corner profiles or edge profiles of a door or a side wall.
  • the air guide profiles are expediently arranged so that they guide or omit the air flow, in particular the ionized or neutralized air flow, so that it flows along the at least one surface, for example the floor of the work area and / or a side wall.
  • a plurality of channels are expediently provided in the region of an access opening, which generate an air flow into the interior of the extraction device.
  • the Heilleitprofile and / or support members are connected, for example, electrically conductive with each other.
  • an electrostatic charge can be forwarded from one air guide and / or support element to the other support element and / or Heilleitprofil.
  • the support elements and / or Heilleitprofile are interconnected so that their Heilleitkanäle communicate with each other, i. that air can flow from one air guide or support element into the other air guide or support element via the connection point.
  • two or more air flow outlets are present, wherein an air flow outlet is flowed through with non-ionized air, while another air flow outlet can be flowed through with ionized air.
  • different airflow outlets may also be electrically charged or ionized differently Air to be flowed through. So it is conceivable, for example, that with one and the same fan arrangement, an air flow is generated, but this is divided into a first and a second air flow, wherein the first air flow is ionized by the ionization device or the charging means, while the other air flow remains unionized.
  • a plurality of fans are provided, wherein each fan generates a different air flow, for example, air streams, one of which positive airflow, another airflow is negatively ionized or ionized.
  • the extraction device for example its housing, air guide element (s), air guide profile (s) or the like, has a module receiver, e.g. a plug-in receptacle or a shaft, into which a charging module with charging means for ionizing the air flow or an air flow and / or for ionizing a wall surface, can be inserted.
  • a charging module with charging means for ionizing the air flow or an air flow and / or for ionizing a wall surface can be inserted.
  • the module receptacle is arranged on an air outlet of the housing.
  • the charging module has expediently an air inlet for the not yet ionized air flow.
  • the charging module may also have a fan for generating the airflow on board.
  • an air outlet for the ionized, eg neutralized, air flow is provided on the charging module.
  • the charging module may also have electrical contacts for electrical connection to at least one wall and / or one surface.
  • the charging means expediently comprise at least one ionization body for ionizing the air flow.
  • a plurality of ionization bodies are present. It is advantageous if a plurality of ionization bodies are connected to a common electrical conductor for charging with the same electrical polarity. On the other hand, it is also advantageous if at least two ionization bodies which are electrically insulated from one another are present, so that a first air flow component can be positively ionized, for example, a second air flow component can be negatively ionized, for example.
  • a respective ionization body is expediently arranged on an air duct, for example the aforementioned duct arrangement of an air guide profile, a door or the like. It is preferred that one or more ionization bodies are arranged, for example, on an air flow passage of an air guide profile or channel or also on an air flow outlet of an air guide profile or channel.
  • the at least one ionization body forms or comprises an air-deflecting surface for the air stream.
  • the direction of the air flow is changed by a predetermined angle by the air steering surface, i. the air flow changed, for example, in its flow direction.
  • the at least one ionization body can also form or include a throttle, for example. Furthermore, it is possible that the at least one ionization body is formed by a discharge nozzle or comprises a discharge nozzle.
  • the at least one ionization body expediently comprises at least one grid.
  • a grid is arranged at an outflow opening of the air guide or an air guide profile of the trigger.
  • a preferred embodiment comprises, for example, that the ionization body comprises an air guide surface.
  • Another variant provides that the ionization body comprises a needle tip or a needle tip profile.
  • the at least one ionization body is corrugated transversely to the flow direction of the air flow.
  • a waveform may include a uniform, for example, sinusoidal waveform.
  • the at least one ionization body in the outflow direction of the air flow, i. downstream is rejuvenating.
  • the ionization body is pointed downstream or is designed in the manner of a needle.
  • ionization bodies are present. It is preferred that at least 2, preferably further, ionizing bodies are arranged side by side in a series arrangement.
  • the series arrangement runs, for example, transversely to the flow direction of the air flow, which is to be ionized by the ionizing bodies.
  • the ionization bodies have the same polarity, ie that they charge the air flow with the same electrical polarity.
  • mutually insulated, arranged side by side in series device Ionization body ie at least two arranged in series next to each other, electrically isolated from each other ionization body.
  • the two ionization bodies (or further ionization bodies) to ionize the respective air flow flowing through them differently, for example to charge them differently and / or to ionize them with different polarity.
  • the trigger device has a control for setting an operating mode, for example the fan arrangement and / or the charging means.
  • the controller controls the operating mode, for example, in time.
  • the controller switches between a cleaning mode and a working mode.
  • the cleaning mode for example, working with an increased volume of air flow, so that an optimal removal of gases and particles from the work area is possible.
  • the working area in the cleaning mode may be that the operator, for example, inadvertently acts to deflect the air flow in the direction of himself, that is, towards his body, so that he is virtually himself with Particles contaminated.
  • it is useful to work in working mode with less air flow than in the cleaning mode.
  • one or more surfaces of the discharge device are electrostatically charged in a sense that particles are attracted to the surfaces. It is preferred in this case if the fan arrangement does not work or operates at a lower level in the working mode, which facilitates adhesion of particles to the electrostatically charged surface. Then, in particular, with the access door closed, switched to the cleaning mode, for example, the electrostatic charging of the surface (s) with the same polarity as the ionization of the air flow is carried out so that the particles are repelled and entrained by the air flow, for example in the direction of the vent.
  • the interrogation of one or more sensors of the trigger device by the controller is appropriate.
  • the controller may adjust the operating mode of the fan assembly and / or the loading means depending on the position of the door (open or closed, partially open, or the like).
  • a take-off device 10 is designed as a so-called fume hood, in short as a fume hood. Although it is in the drawing device shown in the drawing 10 is a stationary to be used deduction device, but For example, by attaching rollers on the bottom could also be used as a mobile trigger device.
  • the extraction device 10 comprises a housing 11, in the interior of which a working chamber 12 is arranged.
  • the working chamber 12 defines a working area 13 which is available to an operator, for example, for the research, processing or production of pure active ingredients, powdered active substances, fine dusts, in particular toxic fine dusts or even generally aerosols.
  • the working chamber 12 is bounded laterally by side walls 14, below by a bottom wall 15, above by a top wall 16 and rear by a rear wall 17th
  • the base 18 can be, for example, a solid base or can also have receiving spaces, in particular receptacles, drawers or the like which can be closed by flaps.
  • the working chamber 12 is accessible at the front through an access opening 19, so that an operator can intervene, for example, with his arms or hands in the working chamber 12. In this way, he can park, for example, on an upper side of the bottom wall 15, thus a bottom surface 20, objects, such as vessels in which powdered active substances are added or the like.
  • 17 brackets 21 are arranged on the rear wall, where objects can be attached.
  • the brackets 21 are designed for example in the form of tripods, projecting hooks or the like, this does not matter here.
  • the brackets 21 penetrate one of the rear wall 17 upstream, the rear wall 17 is substantially veneering glare wall 22. Between the glare wall 22 and the rear wall 17, a gap 23 is provided, which is used for venting the working chamber 12.
  • the brackets 21 So stand forward in the direction of the working chamber 12 from the rear wall 17 and penetrate the curtain wall 22, in front of which they also protrude. At the same time serve the brackets 21 as supports or brackets for the curtain wall 22nd
  • the access opening 19 can be closed by means of a door 24. Of course you could call the door 24 as a window. In any case, the door 24 is a closure means for closing the access opening 19.
  • the door 24 is configured as a sliding door and can be adjusted between an upper, the access opening 19 substantially releasing open position O and a lower closed position S, in which the door 24, the access opening 19 closes, at least substantially airtight.
  • the door 24 has a plate-like shape.
  • the door 24 is adjustable on lateral guides 25 between the open position O and the closed position S, ie an upper and a lower position.
  • a trigger device according to the invention can also have a folding door, a segmented sliding door or the like other doors or windows. Furthermore, several doors are readily possible.
  • an external fan assembly could also be provided, e.g. provides an airflow flowing in through an inlet port 63.
  • the fan assembly 26 is indicated only schematically.
  • the air stream 27 flows out of an airflow outlet 28 from the fan assembly 26.
  • an ionization device 29 is arranged, with which the air flow 27 is electrically rechargeable, that is ionizable.
  • the ionization device 29 forms a component of charging means 30, which serve for the electrostatic charging of the air flow 27.
  • the air flow 27 is distributed in the discharge device 10, for which a channel arrangement 31 is provided.
  • the channel arrangement 31 comprises, for example, air guide profiles 32, 33, in whose interior air guide channels 34 are provided.
  • the air ducts 34 are fluidically, e.g. via a line 62, connected to an outlet of the ionization device 29, from which the ionized air stream 27 flows, so that the ionized when the ionization device 29 ionized, but otherwise unionized air flow 27, the air guide 32, 33 flows through.
  • air flow outlets 35 are provided so that the air flow 27 can flow through the air flow outlets 35 and can flow into the working chamber 12.
  • outlets for the air flow 27 are also present at other points, such as air flow outlets 36 on the outer peripheral region of the bottom wall 15 and the bottom surface 20th
  • the shipsleitprofile 32 are arranged laterally adjacent to the access opening 19 on the side walls 14.
  • the air guide profiles 32 at the same time provide the guides 25, i. For example, they have a guide groove into which a guide projection 37 of the door 24 engages.
  • the guides 25 are, for example, longitudinal grooves.
  • the air guide profile 33 extends at the bottom in the transverse direction at the access opening 19.
  • the air guide profiles 32, 33 are connected to one another in such a way, e.g. inserted into one another or stumped together that their air ducts 34 are fluidly connected in the interior, so that they can be traversed by the air flow 27.
  • the shipsleitprofile 32, 33 act in the form of spoilers and have air guide surfaces 38 which extend curved.
  • their air guide surfaces 38 act in the manner of funnels.
  • the air guide surfaces 38 pass into a step 39, above which, in turn, the air flow outlets 35 are provided.
  • the steps 39 thus have a wall 39a facing the interior or working chamber 12, on which the air flow outlets 35 are arranged, so that air flowing out of the air flow 27 flows in the direction of the working chamber 12. This has an advantageous effect, in particular when the door 24 is open. In this case, a pulling action occurs that also outside air in the direction of the working chamber 12 from the air flowing out of the Heilstromauslässen 35 toward the interior of the discharge device 10, i. the working chamber 12 is entrained.
  • exhaust air can namely, for example, flow through discharge openings 40 on the wall 22 in the direction of the gap 23 which in this respect an outflow 41, albeit with a large areal extent or flat shape forms.
  • the exhaust air flow 42 flows in the intermediate space 23 upwards in the direction of a vent opening 43. This is provided on the top wall 16. Below the vent opening 43, the intermediate space 23 is widened in that the cover wall 22 has an obliquely forwardly extending section in the direction of the access opening 19.
  • a filter 44 may be provided, with which the exhaust air stream 42 can be filtered.
  • a pipe 45 is further arranged, which is fluidly connected to the vent opening 43, so that the exhaust air flowing through the vent opening 43 through the pipe 45, thus an exhaust duct 46 therethrough, can flow away from the take-off device 10.
  • the pipe 45 is provided for connection to a ventilation system or an exhaust duct, to which further, not shown in the drawing trigger devices can be connected.
  • To the vent opening 43 is still nachzutragen that it is in a rear region of the working chamber 12, close to the top wall 16.
  • vents or communicating with the vent port 43 outflow from which exhaust air from the working chamber 12 can flow out in the direction of the vent opening 43 may be provided.
  • the ionization device 29 permanently ionizes the air flow 27, for example, permanently electrically positive or electrically negative, which is indicated by "plus” air particles 47 in FIG. 2 is indicated.
  • Negatively charged particles 48 also shown schematically, eg a powder, is therefore attracted and taken along by the air flow 27, which is electrically positively charged, so that the particles 48 are optimally removed from the working area 13. The risk to the user is thereby low.
  • the air particles 47 are in FIG. 2 separated from the particles 48, may or may, in practice, mix.
  • the airflow 27 is electrically negatively and positively charged, e.g. by a spatially and / or temporally alternating ionization, so that it is electrically neutral on average. This can also be the case for the particles, so that they are electrically neutral and do not adhere to the inner walls of the working chamber 12 and are taken along by the air flow 27.
  • a working zone 49 and an edge zone 50 of the working area 13 surrounding the working zone 49 are charged electrostatically, advantageously with different polarity, by the loading means 30.
  • the working zone 49 and the edge zone 50 (FIG. FIG. 5 ) are, for example, electrically isolated regions of the bottom surface 20, which can be electrically charged differently. If, for example, the air particles 47, ie the air flow 27, are positively charged, the edge zone 50 is expediently also charged electrically positively, so that no particles 48 that are positively charged electrically in this case can adhere there.
  • the positive electrical charging of the particles 48 takes place in the central region of the working region 13, ie in the working zone 49, which is preferably also electrically positively charged. If the Particles 48, for example, are received in containers that are electrically conductive and are electrically in contact with the working zone 49, thereby also the particles 48 are positively charged in each case parked there container.
  • zonings of a respective electrostatically chargeable surface of a trigger device are possible, such as the matrix-like zoning of the surface 53 in accordance with FIG. 6 .
  • a strip-shaped arrangement an arrangement with in particular concentric, annular zones of different electrical polarity or the like is readily possible.
  • a preferred embodiment provides that the surface 53 is expediently electrically neutral in the spatial mean and / or in the time average.
  • the charge of positive zones 52 and negative zones 51 equalize such that the charge is zero in the spatial average. However, this is not absolutely necessary, but only an option.
  • the loading means 30 also electrostatically charge other surfaces of the discharge device 10 in order to allow optimum removal of particles or other substances from the working chamber 12.
  • air guide sections 32, 33 as a whole, but in particular the air guide channels 34 are electrically conductive, that is, can be charged electrostatically.
  • the Luftleitprofile 32, 33 are made of metal, in particular aluminum. But it is also possible, the Heilleitprofile 32, 33 - and of course other surfaces that limit the working chamber 12, such as the working chamber 12th facing side wall surfaces 54 of the side walls 14 to charge electrostatically in the context of the invention.
  • the curtain wall 22 and / or the rear wall 17 could be electrostatically charged by the charging means 30.
  • the brackets 21 are electrically insulated from the diaphragm wall 22 and / or the rear wall 17, so that the brackets 21 and the wall surfaces of the rear wall 17 and the diaphragm wall 22 may have a different electrical polarity.
  • an electrical connection between on the one hand the brackets 21 and on the other hand the space 23 delimiting surfaces is present.
  • the fan arrangement 26 generates a substantially constant air flow 27.
  • a controller 55 for example a microprocessor control which, depending on boundary conditions, eg temporal conditions and / or sensor signals, controls the fan arrangement 26 and / or the charging means 30, in particular the ionization unit 29.
  • a sensor 56 is provided, which is actuated by the door 24 when it assumes its closed position S. The sensor 56 then generates a sensor signal that is received by the controller 55 and signals that the access port 19 is closed. Then, for example, the fan assembly 26 is reduced in terms of its delivery rate, so that it generates a weaker airflow 27. In this case threatens there is no danger that particles 48 can escape outwardly through the access opening 19 and damage the operator possibly standing there.
  • controller 55 it is possible for the controller 55 to switch the ionization device 29 on and off alternately or also to control the ionization of the air flow 27 with different polarity, in particular in a temporal change.
  • the outflow openings 40 are presently arranged in the lower region of the diaphragm 22.
  • the outflow openings 40 are slot-shaped. It is understood that other geometries and / or arrangements of outflow openings are also possible. Furthermore, it is possible that, for example, side walls are provided with outflow openings.
  • an air curtain device 58 may be provided which generates an air curtain 59.
  • the air curtain 59 "closes" the access opening 19.
  • the air curtain 59 flows from above in the direction of the bottom surface 20, from which it is deflected in the direction of the outflow openings 90.
  • the air curtain device 58 may include an ionization device or be in fluid communication with an ionization device.
  • the air guide surface 38 and / or the step 39 form air guide means 60 for directing and guiding the air flow 27.
  • At the door 24 and / or on one or more wall sides of the trigger 10 are preferably provided with transparent material, in particular glass, closed window openings, through which one can look into the working chamber 12 from the outside.
  • a branch 61 can be provided in the area of the airflow outlet 28, with which a part 27 'of the airflow 27 can be branched off before the ionization by the ionization device 29.
  • the branch 61 is, for example, fluidically connected to the air flow outlets 36 at the edge of the bottom surface 20.
  • An ionizer 70 includes, for example, a carrier 71 having an elongated shape.
  • the carrier 71 for example, frontal on the air guide 33 can be arranged.
  • the ionization device 70 is arranged, for example, in the stage 39.
  • ionization device 70 is glued to the air guide profile 33, welded thereto, screwed or the like. It is possible that one electrically conductive or an electrically insulating connection between the ionization device 70 and the air guide 33 is provided.
  • an ionization device according to the invention can also form an integral part of a Lucasleitprofils.
  • the carrier 71 includes, for example, a U-shaped profile 72 which defines an interior 73.
  • the interior space 73 extends between side walls 74 and a bottom wall 75 of the profile 72.
  • the side walls 74 form side legs of the profile 72.
  • the side walls 74 serve as support walls for a wall 76.
  • the wall 76 is presently a closed wall or continuous wall and closes the interior 73 at its top.
  • the wall 76 is opposite the bottom wall 75.
  • the supports 77 are for example block-like or block-like.
  • the wall 76, the supports 77 and the upper wall 78 are advantageously electrically insulating.
  • they are made of plastic or provided with a plastic coating.
  • the walls 76, 78 and the supports 77 limit the walls 76, 78 and the supports 77 from each other electrically insulated chambers.
  • Ionizing bodies 80 are arranged in these chambers.
  • the ionizing bodies 80 have a plurality of walls 81 extending in a zigzag-shaped or wavy manner in cross-section.
  • the walls 81 are, for example, roof-like inclined relative to one another. For example, an angle between 2 adjacent walls 81 about 90 °, with smaller or larger angles are readily possible.
  • the walls 81 are tapered at their front, where a respective air flow from the ionizing bodies 80 flows out.
  • the walls 81 have tips 83 on their front side. This advantageously achieves a good demolition of outflowing air and, in addition, optimum ionization.
  • the mounting portions 82 are penetrated by fastening bolts 84, which also penetrate into the wall 76, these penetrate even here. Free ends of the fastening bolts 84 are in fact electrically conductively connected to electrical conductors 85, 86, so that an electrical connection between one of the ionizing bodies 80 and one of the two conductors 85 or 86 is established. As a result, the ionization bodies 80 can be charged with the potential of the conductors 85 or 86.
  • the arrangement is advantageously such that alternately one ionization body 80 is electrically connected to one conductor 85, one in the row direction R adjacent ionization body 80 to the other conductor 86.
  • the conductors 85, 86 are arranged in the interior 73 and electrically connected to, for example, a first and a second charging means 87, 88.
  • This electrical connection can be a permanent connection, so that, for example, the charging means 87, 88 each act on the conductors 85, 86 with the applied output potential.
  • the charging means 87 to permanently apply a positive potential to the conductor 85 and the ionization bodies connected thereto
  • the charging means 88 to permanently apply a negative potential to the conductor 86 and the ionization body 80 connected thereto, or vice versa.
  • a switching means such as a changeover switch is arranged so that alternately the conductor 85 is connected to the charging means 87 or the charging means 88, mutatis mutandis, the conductor 86 alternately with the charging means with the Charging means 88 or connected to the loading means 87.
  • the arrangement is such that a switching means 89 switches the charging means 87, 88 with respect to their polarity or drives to switch the polarity, so that the charging means 87, 88, the conductors 85, 86 alternately provided with positive or negative electrical potential.
  • FIG. 10 an ionization device 90 is shown. If components of the ionization device 90 correspond to those of the ionization device 70, they are not explained in more detail and provided with the same reference numerals.
  • the arrangement is expediently such that alternately in a row direction R, in which the ionization device in 70, 90 extend, in each case one with the conductor 85 and an ionizing body 91 connected to the conductor 86 is arranged.
  • the air flow flows 27 with respect to the row direction R once past an ionization body 91 having a first potential and once having a second potential.
  • the ionization bodies 91 have a support portion 92 which is connected to one of the conductors 85 or 86.
  • a mandrel 93 From a respective support portion 92 is a mandrel 93 from. A tip 94 of the mandrel 93 is oriented in the outflow direction of the air flow 27.
  • the air flow 27 thus flows out through the air flow outlets 35 and then past one of the ionization bodies 80 or 91, being electrically charged, ie ionized.
  • the arrangement is made such that the air flow 27 is electrically neutral in spatial and / or temporal mean, when it flows out of the ionization device 70 or 90.
  • the ionizing body 80, 91 consist for example of sheet metal, in particular electrode sheet. In any case, the ionizing bodies 80, 91 are electrically conductive.
  • the ionizing bodies 80, 91 do not project in front of the walls 76 and / or 78, so that they protect the ionizing bodies 80, 91 in a protective manner.
  • a grid may be provided.
  • an electrically rechargeable grid 100 disposed at an airflow outlet 35.
  • the ionization devices 70 and / or 90 are expediently designed as loading modules 95 or 96, which can be subsequently mounted on a suitably prepared extraction device.
  • an in FIG. 2 schematically illustrated module receptacle 97 for example, a module slot, provided in the load modules 95 or 96 can be inserted.
  • the module shaft 97 is expediently provided in the region of an air outlet for the air flow 27, for example at the air flow outlets 35 or upstream, but can also be provided, for example, in the interior of the housing 11.
  • the charge modules 95 or 96 may form or include the airflow outlets 35. Furthermore, it is expedient if a module receptacle is preceded by an airflow outlet.
  • a module receptacle 98 may be provided in front of the airflow outlets 35 ( FIG. 9 ), for example, by a section 99 of the Lucasleitprofils 33 is designed accordingly.
  • an ionization device can also be provided in the lower and / or lateral air outlets, for example on or in the air guide profile 33 and / or 32, for example a charge module 101 (FIG. FIGS. 3, 4 ).
  • a module receptacle for example a plug-in receptacle or a slot, is advantageously provided for the charging or ionizing module.

Landscapes

  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Elimination Of Static Electricity (AREA)
  • Electrostatic Separation (AREA)
  • Electric Suction Cleaners (AREA)
EP11782558.8A 2010-11-13 2011-11-11 Abzugvorrichtung mit gasreinigung Active EP2618931B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11782558T PL2618931T3 (pl) 2010-11-13 2011-11-11 Urządzenie wyciągowe z czyszczeniem gazu

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010051364A DE102010051364A1 (de) 2010-11-13 2010-11-13 Abzugvorrichtung
DE202011101114U DE202011101114U1 (de) 2010-11-13 2011-05-26 Abzugvorrichtung
PCT/EP2011/005689 WO2012062478A1 (de) 2010-11-13 2011-11-11 Abzugvorrichtung mit gasreinigung

Publications (2)

Publication Number Publication Date
EP2618931A1 EP2618931A1 (de) 2013-07-31
EP2618931B1 true EP2618931B1 (de) 2019-07-03

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US (1) US20130183893A1 (ru)
EP (1) EP2618931B1 (ru)
CN (1) CN103189140B (ru)
AU (1) AU2011328454B2 (ru)
BR (1) BR112013011739A2 (ru)
CA (1) CA2814909C (ru)
DE (2) DE202011101114U1 (ru)
DK (1) DK2618931T3 (ru)
ES (1) ES2746043T3 (ru)
HK (1) HK1185033A1 (ru)
PL (1) PL2618931T3 (ru)
PT (1) PT2618931T (ru)
RU (1) RU2583020C2 (ru)
WO (1) WO2012062478A1 (ru)
ZA (1) ZA201301755B (ru)

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CN107014895A (zh) * 2017-02-27 2017-08-04 南京铁道职业技术学院 用于生产线的无损探伤仪及其方法
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Also Published As

Publication number Publication date
HK1185033A1 (zh) 2014-02-07
CA2814909C (en) 2018-09-11
RU2013126884A (ru) 2014-12-20
AU2011328454B2 (en) 2014-09-18
US20130183893A1 (en) 2013-07-18
CA2814909A1 (en) 2012-05-18
ZA201301755B (en) 2014-05-28
RU2583020C2 (ru) 2016-04-27
BR112013011739A2 (pt) 2016-08-09
EP2618931A1 (de) 2013-07-31
ES2746043T3 (es) 2020-03-04
CN103189140B (zh) 2016-02-17
DE112011103755A5 (de) 2013-09-26
PT2618931T (pt) 2019-10-02
CN103189140A (zh) 2013-07-03
DK2618931T3 (da) 2019-09-23
AU2011328454A1 (en) 2013-03-28
PL2618931T3 (pl) 2019-12-31
WO2012062478A1 (de) 2012-05-18
DE202011101114U1 (de) 2012-08-28

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