EP0830549B1 - Dispositif de protection anti-contamination rapprochee - Google Patents
Dispositif de protection anti-contamination rapprochee Download PDFInfo
- Publication number
- EP0830549B1 EP0830549B1 EP96913582A EP96913582A EP0830549B1 EP 0830549 B1 EP0830549 B1 EP 0830549B1 EP 96913582 A EP96913582 A EP 96913582A EP 96913582 A EP96913582 A EP 96913582A EP 0830549 B1 EP0830549 B1 EP 0830549B1
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- European Patent Office
- Prior art keywords
- work surface
- gas
- products
- decontaminated
- stream
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
- F24F3/163—Clean air work stations, i.e. selected areas within a space which filtered air is passed
Definitions
- the present invention relates generally to the protection close to a work station located in a contaminated atmosphere, and more particularly a process and a device for close protection of products sensitive to contamination by contaminating agents conveyed by the atmosphere, said products being positioned on a work surface.
- workstations are located in so-called "white" rooms in which the air is filtered and treated so that the level of dust is below a threshold. admissible controlled and subject to strict regulations.
- the air circulating in these clean rooms is often regulated at a low temperature.
- Document FR-A-2 485 700 teaches a process (and associated device) for close protection of the workstation against contamination carried by the atmosphere, according to which we create a single vertical flow descending towards products, this flow on the one hand having dimensions equal to or greater than those the workstation to be protected so as to completely cover it with sterile air, and on the other hand evacuating the work plan on a single rear side thereof.
- the invention proposes a new protection method close-up of products sensitive to air contamination by contaminating agents conveyed by the atmosphere, in accordance with the characteristics of claim 1.
- the invention also provides a method according to claim 2.
- the products positioned on the worktop are isolated from the environment contaminated by a flow of decontaminated gas which covers them, and which either flows vertically down towards the worktop and then transversely to the edges of said plane, ie from the edges of said work plane transversely to said products, then vertically upwards from said workplan.
- Contamination brought by personnel working on products sensitive positioned on the work surface is then automatically driven by the flow of decontaminated gas along either path, towards the outside of said path work plan without this contamination reaching said products.
- One embodiment of the method conforms to the characteristics of the claim 3.
- each gas stream is sucked above said products or conversely, each gas stream is sucked on either side of said products.
- the products being aligned on a conveyor belt which runs according to direction X we direct from the longitudinal edges of said mat, two veins of decontaminated gas towards the middle of said conveyor belt and said veins are aspirated gas in the plane of symmetry of said mat, or vice versa we direct in the plane symmetry of the conveyor belt, a stream of decontaminated gas towards the belt and sucks towards the longitudinal edges of said conveyor belt the gas streams decontaminated.
- the method according to the invention can be improved to adapt it to the work or conveyor belt which are not tightly connected to the frame.
- the process according to the invention consists in blocking induction by deflecting part of each vein of decontaminated gas substantially parallel to the work plan, previously described, toward the edges of said mat.
- the invention also provides a close protection device according to claim 8 and a device according to claim 9.
- the insufflation means comprise at least one inlet for gas and at least two decontaminated gas outlets facing each other, each gas outlet in the form of a slot positioned on one side of the plane and extending longitudinally to the direction X of positioning of the products.
- suction means comprise a mouth suction placed above the work surface next to said products, in a middle region located between the two decontaminated gas outlets of the appliance insufflation.
- the insufflation means comprise a gas inlet, and a decontaminated gas outlet positioned opposite the products above the plane of work in a middle region of said work plan.
- suction means comprise two suction ports arranged opposite one another, each suction port in the form of a slot positioned on one side of said work surface and extending longitudinally to said direction X.
- the protection device can be improved to adapt it to unsealed work.
- the device comprises means additional insufflation including at least one gas inlet which can be that of the main insufflation means and at least two gas outlets decontaminated opposite each other, each gas outlet being under the form of a slot positioned at the edge and under the worktop and extending longitudinally to the product positioning direction X.
- the gas veins evacuating according to the plane of symmetry perpendicular to the work plane.
- the device comprises a lower duct allowing a vein of gas to circulate along the underside as well as the along the edges of the work surface or conveyor belt.
- the insufflation means comprise at least one gas inlet and at minus two decontaminated gas outlets opposite each other, each outlet gas in the form of a slot positioned on one side of the worktop and extending longitudinally to the product positioning direction X and are provided with an aerodynamic means ensuring the deflection of part of the vein of decontaminated gas along the edges of said conveyor belt in a direction perpendicular to the plane thereof.
- a work station comprising a frame 30 supporting a work plan P on which are arranged in file in a direction horizontal X of products 10 sensitive to air contamination, for example foodstuffs.
- the work plan P is formed by a mat conveyor capable of scrolling said products 10 in the direction X.
- This device includes an insufflation apparatus 200 for a decontaminated gas comprising on each longitudinal side (only one of which is visible here) of said plane of work P, here two inputs 201 of a decontaminated gas, for example sterile air.
- a decontaminated gas for example sterile air.
- These inputs 201 are positioned remotely from each other on each longitudinal side of said work plan P and open out in an enclosure provided with a sterile air outlet 202 in the form a slot extending longitudinally to said direction X over the entire length of the side of the worktop P.
- the two outlet slots 202 of the insufflation device are located at the level of the work plan P on which the products 10 and are arranged opposite each other.
- the device shown in Figure 1 includes an apparatus suction 100 of the blown decontaminated gas, comprising a suction mouth 101 in the form of a slot, extending longitudinally at the product positioning direction X, and positioned above the plane of work P, opposite said products in a middle region of the work plan located between the two outlet slots 202 of the insufflation apparatus 200.
- the suction device 100 here has two air outlets 102 located above from the suction mouth 101 so that they allow evacuation towards the high the gas flow 102 aspirated. These two gas outlets 102 are positioned at distance from each other near the end edges of said mouth suction 101. Of course, according to a variant not shown, one can provide more gas outlets.
- the suction device 100 is mounted integral with the insufflation device 200 using support arms 110 so that it hangs above the plane of work P.
- support arms 110 there are four support arms 110 arranged in pairs, each pair support arm 110 is positioned on either side of the suction mouth 101 and is fixed on the one hand to the suction device 100 and on the other hand, to an enclosure insufflation device 200.
- Such a device operates in the following manner.
- a sterile air flow enters the blowing device 200 through the inlets 201 and is distributed on the products through the outlet slots 202 of said device insufflation so that the sterile air leaving said slots 202 follows a path A directed essentially parallel to said plane P, transversely to said direction X.
- the sterile air coming from these slots 202 then licks the products 10 located on the plane of work P.
- the suction device 100 sucks in through its mouth suction 101 sterile air from the outlet slots 202 of the insufflation apparatus.
- the air from the outlet slots 202 of the suction device is therefore sucked into a middle region of the work plane P so that the path A of the sterile air flow is deflected upward perpendicular to said work plane P on which are positioned products 10.
- Two main veins of sterile air 1, 2 come out said outlet slots 202. These two veins 1, 2 are directed towards each other and meet in a middle region of the work plane to form a vein upwardly directed flow perpendicular to said work plane P in direction of the suction mouth 101.
- the sterile air jets from the exit slots meet face to face, in the middle region of the plane of work, which has the effect of naturally creating a central vein which evacuates in a vertical direction perpendicular to said direction X upwards from said plan by entraining contaminated particles.
- the insufflation device 200 of decontaminated gas is mounted above the worktop P, and the suction device is positioned on the frame 30, along the longitudinal sides of said work plane P, longitudinally at the product positioning direction X 10.
- the insufflation device 200 is mounted integral with the suction device 100 via the same support arm system 110 already described above.
- the insufflation device 200 has a gas inlet 201 and a decontaminated gas outlet 202.
- This sterile gas outlet 202 is in the form a slit extending longitudinally in the direction X above the plane P in look of said products 10.
- the suction device 100 has two mouths suction 101 in the form of two slots 101 extending on the sides longitudinal of said work plan P. These suction outlets 101 are connected to air outlets 102.
- the insufflation device 200 produces, through its outlet 202, a gas stream decontaminated 3 towards products 10 located on plane P.
- This gas stream decontaminated 3 follows a path A directed perpendicular to said plane P.
- this vein of decontaminated gas 3 comes into contact with said plane P, it separates in two flow veins 1, 2 which follow paths A essentially oriented parallel to said plane P and transversely to the positioning direction X of said products 10, in opposite directions so that the veins of sterile air flow lick the products 10 positioned on the plane P.
- These decontaminated gas flow streams 1, 2 are drawn in through the vents 101 of the suction device 100 so that the gas is evacuated on the sides of worktop P.
- FIG 2 there is shown in vertical section, a detailed view of inside an embodiment of part of an insufflation apparatus making part of an anti-microbial protection device according to the invention.
- This mode of embodiment of the insufflation device is a variant of that shown on the figure 1
- the insufflation apparatus comprises on each side of work plan P a gas inlet 201 positioned on the sides of plan P below of said plane P so that the gas entering said apparatus is transported in a vertical upward path toward a slit exit 202 located at the level of said plane P.
- This insufflation apparatus 200 comprises in a housing which extends vertically on the side of the frame 30, between the inlet 201 and the outlet 202, a grease filter 211 which extends horizontally over the entire width of the box, relative to the vertical direction F of entry of the gas flow into said insufflation device, then successively a pre-filter 212 which also extends over the entire width of the housing, a fan 213 which allows the gas to be transported filtered towards the upper part of the insufflation device 200.
- This fan 213 is positioned in a baffle path 214 formed by deflectors 214a of the flow of gas so that at the end of this baffled path the flow of filtered gas flows according to the vertical direction F directed upwards from the blower 200.
- baffle path 214 Above of the baffle path 214 is arranged in parallel a pair of absolute filters 215 of which the efficiency is advantageously equal to or greater than that of a very high filter efficiency (standardized filter). These filters 215 extend in said vertical direction F. Above the absolute filters 215 is positioned in a horizontal direction an anti-turbulence grid so as to reduce the turbulence rate of the flow sterile air which opens into an enclosure 217 having an angled path, and converge in order to further reduce the turbulence rate, bringing the flow of decontaminated gas to the slit-shaped outlet 202 directed in one direction substantially transverse to direction X.
- an anti-turbulence grid so as to reduce the turbulence rate of the flow sterile air which opens into an enclosure 217 having an angled path, and converge in order to further reduce the turbulence rate, bringing the flow of decontaminated gas to the slit-shaped outlet 202 directed in one direction substantially transverse to direction X.
- This turbulent diffusion speed is strongly linked to the rate of turbulence, and the size of the vortices present in the flow, reducing the diffusion speed involves reducing the turbulence rate.
- a workstation P is schematically represented on which are arranged in a file in a horizontal direction X of the products 10 susceptible to air contamination.
- the worktop is not tightly connected to the rest of frame 30. As a result, there may be an induction of air contaminated by the space left free between the worktop and the frame.
- Two additional sterile air outlets 203 are provided, presenting in the form of a slot extending longitudinally to said direction X over any the length at the edges and under the worktop P.
- An air outlet 202 identical to that described in FIG. 1 and in FIG. 2 is also provided.
- the gas stream 204 is distributed on either side of the work plan according to a path bypassing the edges of said plane then sweeping the underside of said plane to the longitudinal center line of said plane where the gas veins meet are directed in a direction perpendicular to said plane.
- FIG. 5 which includes the same work station P not connected to the frame 30 as in Figure 4, a U-profile 205 fixed under the frame forms a conduit bringing a slight overpressure sterile air stream under workstation P preventing any induction of contaminated air by the spaces left free due to the lack of sealing between the frame and the worktop.
- the device comprises a conveyor belt P, the traction chain (not shown) creates a lack of tightness with the frame 30.
- the outlets 202 are provided in the lower zone with an elbow 206 creating a conduit 207 diverting part of the sterile air flow towards the edges of the conveyor belt thereby preventing any induction of contaminated air.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Ventilation (AREA)
- Prevention Of Fouling (AREA)
- Prostheses (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Air Bags (AREA)
- Cleaning In General (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
Description
De plus, l'air qui circule dans ces salles blanches est souvent régulé à une basse température.
- la figure 1 est une vue schématique en perspective d'un dispositif de protection rapprochée conforme à l'invention, monté sur un poste de travail,
- la figure 2 est une vue schématique en coupe verticale d'une partie d'un appareil d'insufflation faisant partie du dispositif de protection rapprochée conforme à l'invention,
- la figure 3 est une vue schématique de face d'une variante de réalisation du dispositif de protection rapprochée de la figure 1.
- la figure 4 est une vue schématique en coupe transversale d'une variante de réalisation du dispositif de protection pourvu de moyens d'insufflation auxiliaires.
- la figure 5 est une vue schématique en coupe transversale d'une autre variante de réalisation du dispositif de protection pourvu de moyens d'insufflation auxiliaires.
- la figure 6 est une vue schématique en coupe transversale d'une autre variante de réalisation du dispositif de protection pourvu d'un moyen aérodynamique de déviation de la veine de gaz horizontale.
Claims (26)
- Procédé de protection rapprochée de produits (10) sensibles à la contamination par des agents contaminants véhiculés par l'ambiance, dans lequel ces produits (10) étant placés sur un plan de travail (P), on dirige de part et d'autre desdits produits (10) au moins deux veines de gaz décontaminé (1, 2) vers lesdits produits (10) caractérisé en ce que on dirige les veines à partir de deux bords opposés respectifs du plan de travail sensiblement parallèlement audit plan de travail (P), chaque veine de gaz (3) s'évacuant vers le haut du plan de travail (P) à partir d'une région médiane située entre les bords du plan de travail (P) selon une direction sensiblement perpendiculaire audit plan de travail (P).
- Procédé de protection rapprochée de produits (10) sensibles à la contamination par des agents contaminants véhiculés par l'ambiance, dans lequel ces produits (10) étant placés sur un plan de travail (P), on dirige au moins une veine de gaz (3) au-dessus du plan de travail (P), dans une région médiane dudit plan de travail (P) située entre les bords de ce dernier, selon une direction sensiblement perpendiculaire audit plan de travail (P) vers lesdits produits (10), la ou chaque veine de gaz (1, 2) s'évacuant du plan de travail (P) selon une direction sensiblement parallèle audit plan de travail (P) caractérisé en ce que on dirige la ou chaque veine de sorte qu'elle s'évacue de part et d'autre desdits produits (10) en direction de chacun des bords dudit plan de travail.
- Procédé selon la revendicatiom 1 ou 2, caractérisé en ce que les produits étant disposés selon une direction horizontale X, on dirige de part et d'autre de ladite direction X, selon une direction Y sensiblement transversale à ladite direction X, deux veines de gaz décontaminé (1, 2) vers lesdits produits (10) et lesdites veines de gaz (3) s'évacuant vers le haut selon une direction verticale Z sensiblement perpendiculaire à ladite direction X, ou réciproquement on dirige au-dessus du plan de travail (P) une veine de gaz décontaminé (3) en direction desdits produits (10) selon la direction verticale Z sensiblement perpendiculaire à ladite direction X, ladite veine de gaz (1, 2) s'évacuant selon la direction Y sensiblement transversale à ladite direction X, de part et d'autre de ladite direction X, en direction de chacun des bords dudit plan de travail.
- Procédé selon l'une des revendications 1 à 3, caractérisé en ce qu'on aspire chaque veine de gaz (3) au-dessus desdits produits (10), ou réciproquement on aspire chaque veine de gaz (1, 2) de part et d'autre desdits produits (10).
- Procédé selon l'une des revendications 3 à 4, caractérisé en ce que les produits (10) étant alignés sur un tapis de convoyage (P) qui défile selon la direction X, on dirige à partir des bords longitudinaux dudit tapis, deux veines de gaz décontaminé (1, 2) vers le milieu dudit tapis de convoyage (P), et on aspire une veine de gaz (3) dans le plan de symétrie dudit tapis (P), ou réciproquement on dirige dans le plan de symétrie dudit tapis de convoyage (P) une veine de gaz décontaminé (3) vers ledit tapis de convoyage (P) et on aspire vers les bords longitudinaux dudit tapis de convoyage (P) les veines de gaz (1,2).
- Procédé selon la revendication 5, caractérisé en ce que lorsque le plan de travail P ou tapis de convoyage n'est pas relié de façon étanche à un bâti (30) du plan de travail; une veine de gaz décontaminé supplémentaire (204) est dirigée sur les côtés et sous le plan de travail de façon à ce que le plan de travail soit enveloppé par les veines de gaz (1,2) situées au-dessus du plan de travail et par la veine de gaz supplémentaire (204).
- Procédé selon la revendication 6, caractérisé en ce que lorsqu'un défaut d'étanchéité est crée entre le bâti et le tapis de convoyage par la chaíne de traction dudit tapis, l'induction d'air contaminé est bloquée en déviant une partie de chaque veine de gaz décontaminé (1, 2) vers les bords dudit tapis.
- Dispositif de protection rapprochée de produits (10) sensibles à la contamination par des agents contaminants véhiculés par l'ambiance, les produits (10) étant positionnés sur un plan de travail (P), le dispositif comportant des moyens d'insufflation (200) aptes à produire de part et d'autre desdits produits (10) au moins deux veines de gaz décontaminé (1, 2) en direction des produits (10), caractérisé en ce que chaque veine de gaz décontaminé (1, 2) suivant un trajet tout d'abord orienté sensiblement parallèlement audit plan de travail (P) de sorte que chaque veine de gaz décontaminé (1, 2) lèche lesdits produits (10), puis dirigé vers le haut à partir d'une région médiane du plan de travàil (P) située entre les bords de ce dernier, sensiblement perpendiculairement audit plan de travail (P).
- Dispositif de protection rapprochée de produits (10) sensibles à la contamination par des agents contaminants véhiculés par l'ambiance, les produits (10) étant positionnés sur un plan de travail (P), le dispositif comportant des moyens d'insufflation (200) aptes à produire de part et d'autre desdits produits (10) au moins une veine de gaz décontaminé (1, 2) en direction des produits (10), chaque veine de gaz décontaminé (1, 2) suivant un trajet tout d'abord dirigé au-dessus du plan de travail (P), dans une région médiane dudit plan de travail (P) située entre les bords de ce dernier sensiblement perpendiculairement audit plan de travail (P) vers lesdits produits (10), caractérisé en ce que le trajet est ensuite orienté sensiblement parallèlement audit plan de travail (P) de part et d'autre desdits produits (10) en direction de chacun des bords de celui-ci.
- Dispositif de protection selon la revendication 8 ou 9, caractérisé en ce qu'il comporte des moyens d'aspiration (100).
- Dispositif de protection selon la revendication 10, caractérisé en ce que les moyens d'insufflation (200), respectivement les moyens d'aspiration (100), sont montés solidaire des moyens d'aspiration d'air (100), respectivement des moyens d'insufflation (200).
- Dispositif de protection selon l'une des revendications 8 à 11, caractérisé en ce. que les produits (10) étant disposés selon une direction X, les moyens d'insufflation (200) sont aptes à insuffler de part et d'autre de ladite direction X de positionnement des produits (10), deux veines de gaz décontaminé (1, 2) dirigées l'une vers l'autre selon une direction Y transversale à ladite direction X.
- Dispositif de protection selon la revendication 12, caractérisé en ce que les moyens d'insufflation (200) comprennent au moins une entrée de gaz (201) et au moins deux sorties de gaz décontaminé (202) en regard l'une de l'autre, chaque sortie de gaz (202) se présentant sous la forme d'une fente positionnée sur un côté du plan de travail (P) et s'étendant longitudinalement à la direction X de positionnement des produits (10).
- Dispositif de protection selon l'une des revendications 12 à 13, caractérisé en ce qu'il comporte des moyens d'aspiration (100) aptes à aspirer au-dessus du plan de travail (P) de positionnement des produits (10) les deux veines de gaz (1, 2) réunies en une veine commune (3) dirigée selon une direction Z perpendiculaire audit plan (P).
- Dispositif de protection selon la revendication 14, caractérisé en ce que les moyens d'aspiration (100) comprennent une bouche d'aspiration (201) disposée au-dessus du plan (P) en regard desdits produits (10), dans une région médiane entre les deux sorties de gaz décontaminé (202) des moyens d'insufflation (200).
- Dispositif de protection selon l'une des revendications 8 à 11, caractérisé en ce que les produits (10) étant disposés selon une direction X, les moyens d'insufflation (200) sont aptes à insuffler au-dessus du plan de travail (P) de positionnement des produits (10) une veine de gaz décontaminé (3) en direction des produits (10).
- Dispositif de protection selon la revendication 16, caractérisé en ce que les moyens d'insufflation (200) comprennent une entrée (201), et une sortie (202) de gaz décontaminé positionnée en regard des produits (10) au-dessus dudit plan de travail (P) dans une région médiane dudit plan de travail (P).
- Dispositif de protection selon l'une des revendications 16 à 17, caractérisé en ce qu'il comporte des moyens d'aspiration (100) aptes à aspirer de part et d'autre de ladite direction X de positionnement des produits (10), la veine de gaz (3) séparée en deux veines de gaz (1, 2) dirigées transversalement à ladite direction X dans des directions opposées.
- Dispositif de protection selon la revendication 18, caractérisé en ce que les moyens d'aspiration (100) comportent deux bouches d'aspiration (101) disposées en regard l'une de l'autre, chaque bouche d'aspiration (101) se présentant sous la forme d'une fente positionnée sur un côté du plan de travail (P) et s'étendant longitudinalement à ladite direction X.
- Dispositif de protection selon l'une des revendications 13 ou 17, caractérisé en ce que les moyens d'insufflation (200) comportent successivement entre chaque entrée (201) et chaque sortie (202) de gaz décontaminé , au moins des moyens de filtrage de l'air (211, 212, 215), des moyens de transport (213) du gaz de l'entrée (201) vers la sortie (202).
- Dispositif de protection selon la revendication 20, caractérisé en ce que les moyens d'insufflation (200) comportent en outre des moyens anti-turbulences (216) placés à proximité de ladite sortie de gaz décontaminé (202).
- Dispositif de protection selon l'une des revendications 20 ou 21, caractérisé en ce que les moyens de filtrage de l'air comprennent au moins un filtre (215) dont l'efficacité est égale ou supérieure à celle d'un filtre très haute efficacité, et en ce que les moyens de transport comprennent un ventilateur (213).
- Dispositif de protection selon la revendication 8 au 9, caractérisé en ce que le dispositif comporte des moyens d'insufflation supplémentaires comprenant au moins une entrée de gaz qui peut être celle des moyens d'insufflation principaux et au moins deux sorties de gaz décontaminé (203) en regard l'une de l'autre, chaque sortie de gaz se présentant sous la forme d'une fente positionnée au bord et sous le plan de travail et s'étendant longitudinalement à la direction X de positionnement des produits, les veines de gaz s'évacuant selon le plan de symétrie perpendiculaire au plan de travail.
- Dispositif de protection selon la revendication 8 ou 9, caractérisé en ce que le dispositif comporte un conduit inférieur (205) permettant de faire circuler une veine de gaz le long de la face inférieure ainsi que le long des bords du plan de travail.
- Dispositif de protection selon la revendication 8 ou 9, caractérisé en ce que lorsque la chaíne du tapis de convoyage crée un manque d'étanchéité permettant l'induction d'air contaminé, les moyens d'insufflation comprennent au moins une entrée de gaz (201) et au moins deux sorties de gaz (202), décontaminé en regard l'une de l'autre, chaque sortie de gaz (202) se présentant sous la forme d'une fente positionnée sur un côté du plan de travail et s'étendant longitudinalement à la direction X de positionnement des produits et sont pourvus d'un moyen aérodynamique (206) assurant la déviation d'une partie de la veine de gaz décontaminé le long des bords dudit tapis de convoyage dans une direction perpendiculaire au plan de celui-ci.
- Dispositif de protection selon la revendication 25, caractérisé en ce que le moyen aérodynamique est un coude (206) situé dans la zone inférieure des sorties (202) de gaz déviant une partie du flux d'air stérile vers les bords du tapis de convoyage.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9504526 | 1995-04-14 | ||
FR9504526A FR2733036B1 (fr) | 1995-04-14 | 1995-04-14 | Dispositif de protection anti-contamination rapprochee |
PCT/FR1996/000563 WO1996032613A1 (fr) | 1995-04-14 | 1996-04-12 | Dispositif de protection anti-contamination rapprochee |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0830549A1 EP0830549A1 (fr) | 1998-03-25 |
EP0830549B1 true EP0830549B1 (fr) | 2002-06-26 |
Family
ID=9478140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96913582A Expired - Lifetime EP0830549B1 (fr) | 1995-04-14 | 1996-04-12 | Dispositif de protection anti-contamination rapprochee |
Country Status (9)
Country | Link |
---|---|
US (1) | US6035549A (fr) |
EP (1) | EP0830549B1 (fr) |
JP (1) | JP4113256B2 (fr) |
AT (1) | ATE219831T1 (fr) |
CA (1) | CA2218416C (fr) |
DE (1) | DE69622037T2 (fr) |
ES (1) | ES2176454T3 (fr) |
FR (1) | FR2733036B1 (fr) |
WO (1) | WO1996032613A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19712975A1 (de) * | 1997-03-27 | 1998-10-01 | Gwe Ges Fuer Wasseraufbereitun | Verfahren zur Optimierung der Luftführung in einer Reinluft-Kabine |
US6096135A (en) * | 1998-07-21 | 2000-08-01 | Applied Materials, Inc. | Method and apparatus for reducing contamination of a substrate in a substrate processing system |
FR2785040B1 (fr) | 1998-10-22 | 2001-01-19 | U N I R Ultra Propre Nutrition | Dispositif et procede pour la protection rapprochee de produits ou objets sensibles a des agents contaminants vehicules par l'air ambiant |
US20040251175A1 (en) * | 1998-10-30 | 2004-12-16 | Adams Thomas C. | Apparatuses and methods for making glued screen assemblies |
US7350315B2 (en) | 2003-12-22 | 2008-04-01 | Lam Research Corporation | Edge wheel dry manifold |
US7089687B2 (en) * | 2004-09-30 | 2006-08-15 | Lam Research Corporation | Wafer edge wheel with drying function |
FR2973100B1 (fr) * | 2011-03-22 | 2018-02-09 | Institut National De Recherche En Sciences Et Technologies Pour L'environnement Et L'agriculture (Irstea) | Installation de diffusion de flux d'air |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4021928A (en) * | 1973-12-18 | 1977-05-10 | Research Corporation | Cross-flow modular tobacco curing system |
FR2485700B1 (fr) * | 1980-06-24 | 1986-02-28 | Aurore Sa | Procede pour etablir un ecoulement laminaire determine et poste de travail en comportant application |
US4750276A (en) * | 1984-05-10 | 1988-06-14 | Donald Paul Smith | Impingement thermal treatment apparatus with collector plate |
US4872400A (en) * | 1988-12-12 | 1989-10-10 | Air Concepts, Inc. | Laboratory work station with controllable environment |
JP2644912B2 (ja) * | 1990-08-29 | 1997-08-25 | 株式会社日立製作所 | 真空処理装置及びその運転方法 |
FI88541C (fi) * | 1991-04-23 | 1993-05-25 | Ilmateollisuus Oy | Foerfarande och anordning foer att aostadkomma en luftvaexling foer ett behandlingsrum |
US5211106A (en) * | 1991-05-22 | 1993-05-18 | Oscar Mayer Foods Corporation | Apparatus and method for cooking casingless shaped food products |
US5351415A (en) * | 1992-05-18 | 1994-10-04 | Convey, Inc. | Method and apparatus for maintaining clean articles |
ES2079829T3 (es) * | 1992-08-04 | 1996-01-16 | Ibm | Aparato de enlace a presion para transferir una rebanada semiconductora entre un recipiente transportable estanco a presion y un equipo de tratamiento. |
EP0582017B1 (fr) * | 1992-08-04 | 1995-10-18 | International Business Machines Corporation | Appareil de répartition comprenant un système de distribution d'alimentation en gaz pour manipuler et stocker des récipients portatifs étanches pressurisés |
US5628121A (en) * | 1995-12-01 | 1997-05-13 | Convey, Inc. | Method and apparatus for maintaining sensitive articles in a contaminant-free environment |
US5724748A (en) * | 1996-07-24 | 1998-03-10 | Brooks; Ray G. | Apparatus for packaging contaminant-sensitive articles and resulting package |
-
1995
- 1995-04-14 FR FR9504526A patent/FR2733036B1/fr not_active Expired - Fee Related
-
1996
- 1996-04-12 CA CA002218416A patent/CA2218416C/fr not_active Expired - Fee Related
- 1996-04-12 DE DE69622037T patent/DE69622037T2/de not_active Expired - Fee Related
- 1996-04-12 EP EP96913582A patent/EP0830549B1/fr not_active Expired - Lifetime
- 1996-04-12 US US08/945,341 patent/US6035549A/en not_active Expired - Fee Related
- 1996-04-12 AT AT96913582T patent/ATE219831T1/de not_active IP Right Cessation
- 1996-04-12 JP JP53078096A patent/JP4113256B2/ja not_active Expired - Fee Related
- 1996-04-12 ES ES96913582T patent/ES2176454T3/es not_active Expired - Lifetime
- 1996-04-12 WO PCT/FR1996/000563 patent/WO1996032613A1/fr active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ES2176454T3 (es) | 2002-12-01 |
JPH11503815A (ja) | 1999-03-30 |
CA2218416A1 (fr) | 1996-10-17 |
FR2733036B1 (fr) | 1997-07-04 |
DE69622037D1 (de) | 2002-08-01 |
DE69622037T2 (de) | 2002-11-21 |
ATE219831T1 (de) | 2002-07-15 |
JP4113256B2 (ja) | 2008-07-09 |
US6035549A (en) | 2000-03-14 |
FR2733036A1 (fr) | 1996-10-18 |
WO1996032613A1 (fr) | 1996-10-17 |
EP0830549A1 (fr) | 1998-03-25 |
CA2218416C (fr) | 2008-07-08 |
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