EP0956481B1 - Vorrichtung zur dynamischen trennung von zwei zonen - Google Patents

Vorrichtung zur dynamischen trennung von zwei zonen Download PDF

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Publication number
EP0956481B1
EP0956481B1 EP97953952A EP97953952A EP0956481B1 EP 0956481 B1 EP0956481 B1 EP 0956481B1 EP 97953952 A EP97953952 A EP 97953952A EP 97953952 A EP97953952 A EP 97953952A EP 0956481 B1 EP0956481 B1 EP 0956481B1
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EP
European Patent Office
Prior art keywords
air
jet
zones
buffer zone
jets
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Expired - Lifetime
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EP97953952A
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English (en)
French (fr)
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EP0956481A1 (de
Inventor
Jean-Claude Laborde
Victor Manuel Mocho
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UNIR Ultra Propre Nutrition Industrie Recherche
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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Commissariat a lEnergie Atomique CEA
UNIR Ultra Propre Nutrition Industrie Recherche
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Publication of EP0956481A1 publication Critical patent/EP0956481A1/de
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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
    • F24F9/00—Use of air currents for screening, e.g. air curtains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. air curtains
    • F24F2009/007—Use of air currents for screening, e.g. air curtains using more than one jet or band in the air curtain

Definitions

  • the invention relates to a device for ensure dynamic separation of at least two areas with different atmospheres, to allow transfer at high speed objects or products from one zone to another, without break the confinement.
  • the method according to the invention can be used in many industrial sectors.
  • Ventilation protection consists of artificially create a pressure difference between the two zones, so that the pressure prevailing in one area to be protected is greater than the prevailing pressure inside a contaminating area. So in the case where the area to be protected contains a product susceptible to be contaminated by the ambient air, we inject into the zone to protect a laminar flow which blows towards the exterior through the access opening to this zoned. In the opposite case where it is a question of protecting the personnel and the environment outside of a contaminated space, dynamic containment is ensured by implementing extraction ventilation in this contaminated space. In either case, a rule of thumb imposes a minimum air speed ventilated by 0.5 m / s, in the plane of the opening by which the two zones communicate, in order to avoid the transfer of contamination to the area to be protected.
  • this protection technique ventilation is however not perfect, especially in a so-called "break-in" situation, that is to say when objects are transferred between the two areas.
  • this type of protection requires treating and to control, as the case may be, the entire area suitable for protect against the contaminating external atmosphere or the entire contaminated area. When the area to to process and control is large, this entails a cost of equipment and operation particularly important.
  • this technique of ventilation protection only provides protection at one-way, that is, it only works when contamination transfers are only possible in one direction.
  • the air curtain protection technique consists of injecting simultaneously, in the area of separation by which the two zones communicate, a or more clean, adjacent air jets and similarly meaning, which form a fictitious gate between the area to protect and the contaminating area.
  • a plane air jet is breaks down into two distinct zones: a transition zone (or heart zone) and a development zone.
  • the transition zone corresponds to the part jet center, supported on the nozzle through which clean air is injected. In this area, in which no mixture between the injected air and the air present on either side of the jet does occur, the velocity vector is constant. In section according to a plan perpendicular to the plane of the separation zone, the width of the transition zone gradually decreases away from the nozzle. This transition zone will be called “dart" in the remainder of the text.
  • the jet development area is the part of the latter located outside the area of transition. In this jet development area, the outside air is entrained by the flow of the jet. This results in variations in the velocity vector and by air mixing. Air entrainment by the two faces of the jet, in this development zone, is called "induction". An induced air jet thus, on each of its faces, an air flow which depends in particular the injection rate of the jet in question.
  • the dart of the slow jet is long enough to cover any opening when the width of the injection nozzle of the slow jet is at least equal to 1 / 6th of the height of the opening to be protected.
  • the subject of the invention is precisely a dynamic separation device of at least two areas with different atmospheres, authorizing the high-speed transfer of objects or products between these areas, without breaking the containment, including where there is a risk of cross contamination between the two areas.
  • controlled atmosphere means that all the characteristics of the air present in the buffer zone, such as temperature, humidity, ventilation conditions, concentrations gaseous and particulate, etc. are controlled.
  • adjacent communicating areas denotes, in the set consisting of the zones to separate and by the buffer zone (s), each group of two zones which directly communicate one with the other. So, in case the device includes a single buffer zone placed between two zones to be separated, there are two pairs of communicating zones adjacent, each formed of the single buffer zone and of one of the zones to be separated. When multiple zones buffers are provided, there is at least one other pair of adjacent communicating zones formed by two buffer zones.
  • Each buffer zone thus plays the role a dynamic airlock between the areas to be separated.
  • the means of containment dynamics which are interposed between each pair of adjacent communicating areas, are such that, in each air curtain, the second (fast) jet is injected at a rate such as the air flow induced by the face of the second jet in contact with the first jet (slow) either lower or, preferably, substantially equal to half the injection rate of the first jet.
  • each air curtain includes a relatively small third jet slow, same direction as the first and second jets and adjacent to the second jet (fast), on the side of the buffer.
  • This third jet then includes a dart which completely blocks communication between zones and it is injected at a flow rate substantially equal to the flow rate injection of the first jet, so that the air flows induced by the faces of the second jet respectively in contact with the first and third jets be less than or preferably substantially equal to the half of their injection rates.
  • each of the means of dynamic containment includes at least two nozzles adjacent air supply and a resumption facing the supply nozzles and located in a plane parallel to them.
  • Nozzles feed and return outlets are advantageously located in the respective extension of upper and lower walls of the buffer zone.
  • the buffer zone includes preferably ventilation, such as a ceiling blowing, associated with injection means delivering clean air in this area.
  • the flow of these means injection is then at least equal to the sum of air flows induced by each of the faces of the jets of the air curtains in contact with the buffer zone.
  • the flow rate of the injection means is such that it ensures a minimum speed of 0.1 m / s, related to surfaces plans of the ends of the buffer zone.
  • the buffer zone can also include a suction mouth spread over the whole its bottom wall.
  • the flow of injection means is then at least equal to the sum of the air flow sucked in through the suction mouth and air flow induced by each side of the air curtain jets in contact with the buffer zone.
  • the flow of injection means must always ensure a speed minimum 0.1 m / s, relative to the surfaces of the planes of the ends of the buffer zone. This arrangement corresponds in particular to the case where the buffer zone is used to perform a basic operation (dosing, packaging, etc.) on objects or products transferred between the areas to be separated.
  • the curtains of air which are interposed between a buffer zone and one of the areas to be separated are delimited by walls width at least equal to the maximum thickness of these air curtains.
  • Zones 10a and 10b are delimited by watertight walls (not shown) and there reigns different atmospheres, that is to say that one at less of the characteristics that constitute in particular gas and particulate concentrations, conditions ventilation, temperature, humidity, etc. is different from one area to another.
  • the zones 10a and 10b by at least one separation device dynamic which includes, in the embodiment shown in Figure 1, a buffer zone 12 through from which zones 10a and 10b communicate.
  • the buffer zone 12 is a zone to controlled atmosphere, i.e. an area in which different parameters such as the concentrations gaseous and particulate, the aeraulic conditions, temperature, humidity, etc. are controlled.
  • the dynamic separation device further comprises containment means dynamic, generally designated by the references 14a and 14b in Figure 1, which are interposed respectively between zone 10a and buffer zone 12 and between buffer zone 12 and zone 10b, i.e. between each pair of adjacent communicating zones of the installation.
  • Dynamic containment means 14a create a first air curtain 16a between zone 10a and buffer zone 12.
  • the means of dynamic containment 14b create a second curtain of air 16b between buffer zone 12 and zone 10b to controlled atmosphere.
  • the buffer zone 12 is delimited by watertight walls, so as to form a horizontal corridor of rectangular section, which opens at its ends respectively in zone 10a and in zone 10b at through air curtains 16a and 16b created by the dynamic containment means 14a and 14b.
  • the horizontal upper wall of the area buffer 12 forms a blowing ceiling 18.
  • This ceiling blowing 18 is associated with injection means or ventilation (not shown) which deliver air clean in buffer zone 12, at a determined flow rate. As will be seen later, this flow depends on the characteristics of the air curtains 16a and 16b and the possible presence of a suction mouth in the buffer zone 12.
  • the horizontal bottom wall 20 of the buffer zone 12 forms a work plan.
  • a suction mouth can be distributed over this entire bottom wall 20, so as to resume part of the injected ventilation air flow in the buffer zone 12 by the blowing ceiling 18.
  • the buffer zone 12 is delimited by two side walls 22, oriented vertically, parallel to the plane of Figure 1.
  • the dynamic containment means 14a and 14b are placed in the extension of the watertight walls which delimit the buffer zone 12, so as to form the air curtains 16a and 16b when these means of containment are implemented.
  • the means of dynamic containment 14a and 14b are designed to create air curtains 16a and 16b each formed of two jets clean air in the same direction.
  • the dynamic confinement means 14a comprise two air supply nozzles 24a and 26a, which extend transversely across the width of the buffer zone 12, in line with the blowing ceiling 18, on the side of zone 10a.
  • the dynamic confinement means 14b include two air supply nozzles 24b and 26b, which extend transversely across the width of the buffer zone 12, in line with the blowing ceiling 18 on the side of zone 10b. All nozzles air supply 24a, 26a, 24b and 26b open out in the same horizontal plane, located in the extension from the underside of the blower ceiling 18.
  • Dynamic containment means 14a additionally include a horizontal return opening 28a, arranged opposite the air supply nozzles 24a and 26a and extending over the entire width of the buffer zone 12, in the extension of its lower wall 20.
  • the means of containment dynamics 14b include a return mouth horizontal 28b placed below the supply nozzles in air 24b and 26b and extending over the entire width of buffer zone 12, in line with its lower wall 20.
  • Each of the means of dynamic containment 14a and 14b further comprises means (not shown) allowing air to be injected at a speed and a controlled flow, respectively by the supply nozzles in air 24a and 26a and through the supply nozzles in air 24b and 26b, as well as means (not shown) allowing to aspirate, respectively to through return ports 28a and 28b the whole air flows injected by the nozzles and flows induced air.
  • the watertight side walls 22 which delimit the buffer zone 12 extend beyond the ends of this area over a length at least equal to the thickness maximum air curtains 16a and 16b, so that avoid any rupture of confinement on the lateral edges air curtains.
  • FIG. 1 corresponds to the case where each of air curtains 16a and 16b is formed by two air jets own adjacent and the same direction.
  • the two curtains 16a and 16b have identical characteristics which will now be described in more detail.
  • each of the supply nozzles in air 24a and 24b delivers a jet of clean air relatively slow, of which only the darts 30a and 30b are represented.
  • each of the supply nozzles in air 26a and 26b which are arranged on the side of the blown ceiling 18 relative to nozzles 24a and 24b delivers a relatively fast clean air stream through compared to the jets delivered by the nozzles 24a and 24b. Only the darts 32a and 32b of these jets relatively are shown in Figure 1. For simplicity, relatively slow and relatively fast jets are called respectively “slow jets" and “jets fast "in the rest of the text.
  • the air curtains 16a and 16b also extend over the entire width of the buffer zone, between the side walls 22 thereof.
  • each of the slow jets injected by the nozzles 24a and 24b is dimensioned so that its dart 30a, 30b covers the entire section of the buffer zone, ends thereof which respectively open out in zones 10a and 10b.
  • This result is obtained in ensuring that the range, or length, of the darts 30a and 30b is at least equal to the height of the zone buffer 12.
  • the injection slot of each nozzles 24a and 24b present, parallel to the plane of the figure, a width at least equal to 1 / 6th and, from preferably 1 / 5th of the height of buffer zone 12.
  • each of the slow jets emitted by the nozzles 24a and 24b is advantageously set at 0.5 m / s. Because the length of the darts 30a and 30b of the slow jets is at less equal to the height of buffer zone 12 and that these jets are relatively slow, the air streams follow the outline of objects or products that pass through air curtains 16a and 16b, without breach of containment.
  • each slow jets injected by nozzles 24 and 24b has the consequence that these jets, if they were alone, would risk being destabilized by air flow disturbances or mechanical that can occur near curtains air, thus causing the containment of the zones 10a and 10b.
  • the highest speed of these fast jets ensures the stability of slow jets and, by therefore, improve the efficiency of containment of zones 10a and 10b in situation of break-ins through dynamic barriers formed by each of the curtains air 16a and 16b.
  • the width of each of the nozzles air supply 26a and 26b of the fast jets can be approximately 1 / 40th that of the supply nozzles in air 24a and 24b slow jets.
  • the injection rate of each of the fast jets, by the nozzles 26a and 26b is adjusted so that the air flow induced by the faces of these fast jets which are in contact with slow jets, injected by nozzles 24a and 24b, either lower or, preferably, substantially equal to half the injection rate of these jets slow.
  • the mouths of recovery 28a and 28b ensure the recovery of everything the air blown by the supply nozzles under which they are placed, and all the air driven by each of the air curtains 16a and 16b.
  • the air recovered by the return grilles 28a and 28b can be purified by purification means specific (not shown) before being recycled to the air supply nozzles 24a, 26a; 24b, 26b. The excess air is then discharged outside after a second specific purification.
  • the horizontal orientation air supply nozzles which determines a vertical orientation of the air curtains, as well as the horizontal arrangement of the return outlets opposite air curtains, optimize the barrier effect obtained using each of the means of containment dynamics 14a and 14b.
  • the internal ventilation of the buffer zone 12 provided by the blowing ceiling 18 allows to obtain a purifying effect in this area.
  • This purifying effect contributes to the efficiency of separation dynamics of zones 10a and 10b, especially in case high-speed transfer of objects or products between these two areas.
  • the air injection rate clean ventilation in buffer zone 12, by the blowing ceiling 18, is at least equal to the air flow induced by the fast jets delivered by the nozzles 26a and 26b, on the faces of these fast jets which are in contact with buffer zone 12.
  • clean air ventilation is injected into buffer zone 12, at across the ceiling blowing 18, at such a speed that the air speed related to the surfaces of plans of the ends of the buffer zone 12 which open out in zones 10a and 10b, i.e. at least equal to 0.1 m / s.
  • Each of the return vents 28a and 28b has a width substantially equal to the width cumulative air supply nozzles 24a and 26a; 24b and 26b respectively.
  • This width can however be modulated, in particular to take into account certain ventilation conditions prevailing in zones 10a and 10b, tending to deflect the vertical jets forming the air curtains 16a and 16b. So, it is desirable to reduce the width of the corresponding return mouth, towards the interior of buffer zone 12, when the air curtain jets tend to be diverted out of this area. Conversely, the width of the return opening must be increased towards the interior of buffer zone 12 when the air curtain jets tend to be deviated towards the interior of this zone.
  • FIG. 2 illustrates a second mode of realization of the invention, which essentially differs of the embodiment of FIG. 1 by the fact that each of the air curtains, designated by the references 16'a and 16'b, then has three clean air jets adjacent and in the same direction.
  • each of the means of containment dynamic includes respectively, in addition to the supply nozzles in air 24a, 26a and 24b, 26b, a third supply nozzle 34a and 34b, adjacent respectively to nozzles 26a and 26b on the side of the blowing ceiling 18. More specifically, the nozzles 34a and 34b extend over the entire width of buffer zone 12 and their outlet is arranged in the same horizontal plane as that of the other nozzles 24a, 26a; 24b, 26b, i.e. in a horizontal plane coincident with that of the face lower of the blower ceiling 18.
  • each of the nozzles supply air 34a, 34b delivers a third jet clean air, relatively slow compared to jets rapids emitted by nozzles 26a and 26b, between this jet rapid and buffer zone 12.
  • the darts of these third jets are illustrated in 36a and 36b in FIG. 2.
  • the dimensions of the nozzles 34a and 34b are chosen so that the darts 36a and 36b of the third jets from each of the air curtains 16'a and 16'b overlap the entire section of buffer zone 12.
  • the lower slot of each of the nozzles 34a and 34b presents, in section parallel to the plane of the Figure 2, a width at least equal to 1 / 6th and, from preferably 1 / 5th of the height of the buffer zone 12.
  • the widths of the nozzles 24a, 34a and 24b, and 34b are the same.
  • the injection rate slow jets delivered by nozzles 34a and 34b is set to be approximately equal to the flow injection of slow jets delivered by nozzles 24a and 24b.
  • the air flows induced by the faces fast jets emitted by nozzles 26a and 26b, respectively in contact with each of the slow jets of the corresponding air curtain are lower or, of preferably substantially equal to half the flow rates injection of these slow jets.
  • each of the return vents 28'a and 28'b is adapted to the width of the air curtains 16'a and 16'b, to be substantially equal to the width cumulative nozzles forming these air curtains.
  • this width can be adjusted as we have previously described with reference to FIG. 1, when the air conditions prevailing in at least one zones 10a and 10b tend to deflect the curtains of air relative to the vertical.
  • the second embodiment that comes to be briefly described with reference to Figure 2 provides dynamic containment in both direction between buffer zone 12 and each of zones 10a and 10b.
  • the injection rate of clean air ventilation through the ceiling blowing 18 can be considerably decreased.
  • the injection rate air through the blowing ceiling 18 is then at less equal to the air flows induced by slow jets emitted by the injection nozzles 34a and 34b, on the faces of these jets which are in contact with the area buffer 12 and it is such that it ensures a speed minimum 0.1 m / s, relative to the surfaces of the planes of the ends of the buffer zone.
  • the area buffer 12 is a passive area, in which none operation is not carried out on objects or products which are transferred between zones 10a and 10b.
  • buffer zone 12 is an active zone, that is, it is used to perform a basic operation (dosing, packaging, etc.) on objects or products transferred between zones 10a and 10b.
  • the architecture of the separation device dynamic is then identical to that which has been described previously with reference to Figures 1 and 2.
  • a suction mouth is distributed over the entire lower wall 20 of the buffer zone 12.
  • the speed of suction through this suction mouth varies for example between about 0.1 m / s and about 0.2 m / s.
  • the ventilation supply rate internal, through the blowing ceiling 18 is then greater and at least equal to the sum of the debits induced by each side of the air curtains in contact with buffer zone 12 and the suction flow through the suction mouth.
  • this Internal ventilation supply rate corresponds to a minimum speed of 0.1 m / s, reported to the surfaces of the planes at the ends of the zone buffer.
  • the device dynamic separation according to the invention comprises several buffer zones 12, arranged in series, through which the zones 10a and 10b communicate.
  • Each of the buffer zones 12 then has characteristics analogous to those which have been described previously, and in particular a ceiling 18 and a suction mouth 20 'facing it.
  • means of containment dynamics designated by the references 14a, 14b and 14c are interposed between each pair of communicating zones adjacent. More specifically, the means of dynamic containment 14a are interposed between the zone 10a and the buffer zone 12 which opens into the zone 10a, the dynamic containment means 14c are interposed between each pair of adjacent buffer zones 12 and the dynamic confinement means 14b are interposed between zone 10b and buffer zone 12 which opens in this buffer zone.
  • the dynamic confinement means 14a, 14b and 14c are identical to each other and they can be done as appropriate in the way previously described with reference to Figure 1 or the manner previously described with reference to the figure 2.
  • the air curtains formed by the dynamic confinement means 14c which separate two 12 consecutive buffer zones are delimited laterally by extensions of the side walls 22 of these buffer zones, over a width equal to the width supply nozzles forming these curtains air.
  • the same buffer zone can ensure dynamic separation of more than two zones 10a, 10b and 10c.
  • one or more openings are formed in at least one of the side walls 22 of the buffer zone considered and each of the openings is controlled by dynamic containment means 14d whose characteristics are similar to those of dynamic containment means 14a and 14b on the Figure 1 or dynamic containment means 14'a and 14'b in Figure 2.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Amplifiers (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Vehicle Body Suspensions (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Feeding Of Articles To Conveyors (AREA)

Claims (13)

  1. Vorrichtung zur dynamischen Trennung von wenigstens zwei Zonen (10a,10b), in denen unterschiedliche Milieus herrschen,
    dadurch gekennzeichnet, dass sie umfasst:
    wenigstens eine Pufferzone (12) mit kontrollierter Atmosphäre, durch die hindurch die zu trennenden Zonen kommunizieren;
    dynamische Einschließeinrichtungen (14a,14b,14'a,14'b), eingefügt zwischen den benachbarten kommunizierenden Zonen jedes Paars, um zwischen diesen Zonen einen Luftvorhang (16a,16b,16'a,16'b) zu erzeugen, der einen relativ langsamen ersten Luftstrom umfasst, der einen Kern (30a,30b) enthält, der die Kommunikation zwischen den Zonen vollständig verschließt bzw. unterbricht, und einen relativ schnellen zweiten Strahl mit derselben Richtung wie der erste Strahl und an diesen auf der Seite der Pufferzone (12) angrenzend.
  2. Vorrichtung nach Anspruch 1, bei dem die genannten dynamischen Einschließeinrichtungen (14a,14b,14'a,14'b) derartig sind, dass in jedem Luftvorhang (16a,16b,16'a,16'b) der zweite Strahl mit solchen Menge eingeblasen wird, dass die Luftmenge, die induziert bzw. angeregt wird durch die Seite des zweiten Strahls, die mit dem ersten Strahl Kontakt hat, im Wesentlichen höchstens halb so groß ist wie die Einblasmenge des ersten Strahls.
  3. Vorrichtung nach Anspruch 2, bei dem die genannten dynamischen Einschließeinrichtungen (14a,14b,14'a,14'b) derartig sind, dass in jedem Luftvorhang (16a,16b,16'a,16'b) der zweite Strahl mit solchen Menge eingeblasen wird, dass die Luftmenge, die induziert bzw. angeregt wird durch die Seite des zweiten Strahis, die mit dem ersten Strahl Kontakt hat, im Wesentlichen halb so groß ist wie die Einblasmenge des ersten Strahls.
  4. Verfahren nach einem der Ansprüche 1 bis 3, bei dem die genannten dynamischen Einschließeinrichtungen (14'a,14'b) derartig sind, dass jeder Luftvorhang (16'a,16'b)einen relativ langsamen dritten Strahl mit einer dritten Einblasmenge umfasst, mit derselben Richtung wie der erste und der zweite Strahl und unmittelbar neben dem zweiten Strahl, auf der Seite der Pufferzone (12), wobei der dritte Strahl einen Kern (36a,36b) umfasst, der die Kommunikation zwischen den Zonen total verschließt bzw. unterbricht, und mit einer Menge eingeblasen wird, die im Wesentlichen gleich groß ist wie die erste Einblasmenge, sodass die Luftmengen, die induziert bzw. angeregt wird durch die Seiten des zweiten Strahls, die jeweils mit dem ersten und dem dritten Strahl Kontakt haben, im Wesentlichen höchstens halb so groß sind wie die Einblasmengen von diesen.
  5. Verfahren nach Anspruch 4, bei dem die genannten dynamischen Einschließeinrichtungen (14'a,14'b) derartig sind, dass bei jedem Luftvorhang die Luftmengen, die induziert bzw. angeregt werden durch die Seiten des zweiten Strahls, die jeweils mit dem ersten und dem dritten Strahl Kontakt haben, im Wesentlichen halb so groß sind wie die Einblasmengen von diesen.
  6. Verfahren nach einem der vorangehenden Ansprüche, bei dem jede der genannten dynamischen Einschließeinrichtungen wenigstens zwei nebeneinanderliegende Luftversorgungsdüsen (24a,26a,34a,24b,26b,34b) und eine Absaugöffnung (28a,28b, 28'a,28'b) umfasst, die sich gegenüberstehen und sich in zwei parallelen Ebenen befinden.
  7. Verfahren nach Anspruch 6, bei dem die Versorgungsdüsen (24a,26a, 34a,24b,26b,34b) und die Absaugöffnungen (28a,28b,28'a,28'b) sich jeweils in der Verlängerung einer oberen Wand und einer unteren Wand (20) der Pufferzone (12) befinden.
  8. Verfahren nach einem der vorangehenden Ansprüche, bei dem die Pufferzone (12) eine mit Einblaseinrichtungen verbundene Ventilation (18) umfasst, die Reinluft in die Pufferzone liefert, deren Menge wenigstens gleich der Summe der Luftmengen ist, die induziert bzw. angeregt wird durch jede der Seiten des mit der Pufferzone (12) Kontakt habenden Luftvorhangstrahls (16a,16b,16a',16'b), wobei die Durchsatzmenge der Einblaseinrichtungen so ist, dass eine Mindestgeschwindigkeit von 0,1 m/s gewährleistet ist, bezogen auf die Flächen der Ebenen der Enden der Pufferzone.
  9. Vorrichtung nach Anspruch 8, bei der die Ventilation eine Einblasdecke (18) umfasst.
  10. Vorrichtung nach einem der Ansprüche 8 und 9, bei dem die Pufferzone (12) eine Absaugöffnung (20') umfasst, verteilt über die gesamte untere Wand (20), wobei die Durchsatzmenge der Einblaseinrichtungen wenigstens gleich der Summe der Luftdurchsatzmenge der Absaugöffnung (20') und derjenigen Luftdurchsatzmenge ist, die induziert bzw. angeregt wird durch jede der Seiten des Vorhangluftstrahlen, die mit der Pufferzone (12) Kontakt haben.
  11. Vorrichtung nach einem der vorangehenden Ansprüche, bei der mehrere Pufferzonen (12), gebildet durch Seitenwände (22), in Serie zwischen den zu trennenden Zonen (10a,10b) angeordnet sind, wobei die zwischen zwei Pufferzonen (12) eingefügten Luftvorhänge abgegrenzt werden durch die Kontinuität der Seitenwände (22), und die zwischen einer Pufferzone (12) und einer der zu trennenden Zonen (10a,10b) durch Seitenwände verlängert sind, deren Breite wenigstens gleich der maximalen Dicke dieser Luftvorhänge ist.
  12. Vorrichtung nach einem der Ansprüche 1 bis 10, bei der eine einzige Pufferzone (12), gebildet durch Seitenwände (22), zwischen den zu trennenden Zonen (10a,10b) eingefügt ist, wobei die Luftvorhänge verlängert werden durch einen Teil der Seitenwände (22), deren Breite wenigstens gleich der maximalen Dicke dieser Luftvorhänge ist.
  13. Vorrichtung nach wenigstens einem der Ansprüche 1 bis 12, bei der mindestens eine der Pufferzonen mit mehr als zwei Öffnungen versehen ist.
EP97953952A 1996-12-27 1997-12-24 Vorrichtung zur dynamischen trennung von zwei zonen Expired - Lifetime EP0956481B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9616100A FR2757933B1 (fr) 1996-12-27 1996-12-27 Dispositif de separation dynamique de deux zones par au moins une zone tampon et deux rideaux d'air propre
FR9616100 1996-12-27
PCT/FR1997/002428 WO1998029696A1 (fr) 1996-12-27 1997-12-24 Dispositif de separation dynamique de deux zones

Publications (2)

Publication Number Publication Date
EP0956481A1 EP0956481A1 (de) 1999-11-17
EP0956481B1 true EP0956481B1 (de) 2002-03-13

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EP97953952A Expired - Lifetime EP0956481B1 (de) 1996-12-27 1997-12-24 Vorrichtung zur dynamischen trennung von zwei zonen

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US (1) US6251006B1 (de)
EP (1) EP0956481B1 (de)
JP (1) JP3796267B2 (de)
CN (1) CN1135333C (de)
AT (1) ATE214471T1 (de)
AU (1) AU724418B2 (de)
CA (1) CA2275950C (de)
DE (1) DE69711087T2 (de)
ES (1) ES2174333T3 (de)
FR (1) FR2757933B1 (de)
WO (1) WO1998029696A1 (de)

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SE9900868D0 (sv) * 1999-03-09 1999-03-09 Georg Kinigalakis Placeringsenhet för människa
WO2001080065A2 (en) 2000-04-18 2001-10-25 Icplanet Acquisition Corporation Method, system, and computer program product for propagating remotely configurable posters of host site content
JP2005518655A (ja) * 2001-07-15 2005-06-23 アプライド　マテリアルズ　インコーポレイテッド 処理システム
DE10313113A1 (de) * 2003-03-24 2004-10-14 Lwt Luftwandtechnologie Gmbh Luftwand mit doppeltem Luftstrom
JP4712457B2 (ja) * 2005-06-30 2011-06-29 高砂熱学工業株式会社 風除室、および風除室において室内と室外の間の空気の流れを低減する方法
NL1030639C2 (nl) * 2005-12-09 2007-06-12 Antonius Theodorus Ceci Hauzer Ventilatiesysteem voor tunneltraject of overdekte weg.
JP2007252453A (ja) * 2006-03-22 2007-10-04 Koken Ltd 解剖実習室用有害ガス曝露防止装置
US7604000B2 (en) * 2006-12-21 2009-10-20 Wolfe Electric, Inc. Tunnel oven
US9551500B2 (en) 2007-10-16 2017-01-24 Handelsmaatschappij Willy Deweerdt Bvba Device for generating an air wall
EP2108465A1 (de) * 2008-04-07 2009-10-14 Siemens VAI Metals Technologies Ltd. Verfahren und Vorrichtung für gesteuerte Kühlung
US8983675B2 (en) * 2008-09-29 2015-03-17 International Business Machines Corporation System and method to dynamically change data center partitions
PL387085A1 (pl) * 2009-01-21 2010-08-02 Flowair Głogowski I Brzeziński Spółka Jawna Kurtyna powietrzna ze strumieniem pomocniczym
GB2470974B (en) * 2010-02-01 2011-11-16 Mechanical & Internal Environmental Services Ltd Underground railway tunnel ventilation for single line tunnels
ITPI20110138A1 (it) * 2011-12-06 2013-06-07 A R I A Engineering S R L Metodo e apparecchiatura per realizzare ambienti delimitati da pareti dâ''aria
JP6191485B2 (ja) * 2014-02-03 2017-09-06 富士電機株式会社 冷蔵倉庫
FR3032391B1 (fr) * 2015-02-06 2018-09-21 Alstom Transport Technologies Dispositif de generation de rideau d'air, notamment destine a equiper un vehicule ferroviaire
CN106553684B (zh) * 2015-09-30 2021-06-15 强生消费者公司 用于儿童的便携式可控环境系统
CN105292871B (zh) * 2015-11-16 2017-10-03 青岛同辉汽车技术有限公司 一种具有喷药装置的垃圾车
CN105674469A (zh) * 2016-03-06 2016-06-15 刘倩 房间空气隔断装置
CN105973742B (zh) * 2016-04-19 2019-07-16 中国石油化工股份有限公司 一种沥青中烟气含量的检测装置及其检测方法
WO2018148765A1 (en) * 2017-02-10 2018-08-16 Kateeva, Inc. Manufacturing enclosure environmental containment systems and methods
FR3066209A1 (fr) 2017-05-10 2018-11-16 Areva Nc Sas de confinement comprenant un chassis autoportant articule et pliable
CN108971181A (zh) * 2018-09-20 2018-12-11 唐山精海仪机电设备有限公司 一种连续移动空间内清扫扬尘处理方法
FR3093443B1 (fr) * 2019-03-07 2021-06-25 Hydro Fill Isolateur a parois virtuelles
US11497217B2 (en) 2019-09-09 2022-11-15 Wolfe Electric, Inc. Air impingement conveyor oven
US20220120459A1 (en) * 2020-10-21 2022-04-21 Paul Bemis Tabletop bio-safty air curtain
EP4080127A3 (de) * 2021-04-20 2023-02-22 FLOWGenuity Inc. System zur erzeugung einer mikroumgebung innerhalb einer umgebung

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FR2652520B1 (fr) 1989-10-02 1992-02-07 Sgn Soc Gen Tech Nouvelle Procede et dispositif pour maintenir une atmosphere propre a temperature regulee sur un poste de travail.
FR2659782B1 (fr) 1990-03-14 1992-06-12 Sgn Soc Gen Tech Nouvelle Procede et dispositif de separation dynamique de deux zones.
FR2730297B1 (fr) * 1995-02-02 1997-05-09 Soc Generale Pour Les Techniques Nouvelles Sgn Procede et dispositif de confinement, notamment d'une atmosphere particuliere dans un espace de traitement en continu de produits traversants

Also Published As

Publication number Publication date
JP2001513185A (ja) 2001-08-28
JP3796267B2 (ja) 2006-07-12
FR2757933A1 (fr) 1998-07-03
CA2275950A1 (fr) 1998-07-09
US6251006B1 (en) 2001-06-26
ATE214471T1 (de) 2002-03-15
WO1998029696A1 (fr) 1998-07-09
ES2174333T3 (es) 2002-11-01
CN1242071A (zh) 2000-01-19
DE69711087D1 (de) 2002-04-18
AU724418B2 (en) 2000-09-21
FR2757933B1 (fr) 1999-01-22
EP0956481A1 (de) 1999-11-17
AU5768498A (en) 1998-07-31
DE69711087T2 (de) 2002-10-02
CN1135333C (zh) 2004-01-21
CA2275950C (fr) 2007-02-06

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