EP0966638B1 - Vorrichtung zum trennen von zwei zonen mit verschiedenen umgebungen - Google Patents

Vorrichtung zum trennen von zwei zonen mit verschiedenen umgebungen Download PDF

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Publication number
EP0966638B1
EP0966638B1 EP98912564A EP98912564A EP0966638B1 EP 0966638 B1 EP0966638 B1 EP 0966638B1 EP 98912564 A EP98912564 A EP 98912564A EP 98912564 A EP98912564 A EP 98912564A EP 0966638 B1 EP0966638 B1 EP 0966638B1
Authority
EP
European Patent Office
Prior art keywords
buffer zone
zone
air
inlet
clean
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98912564A
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English (en)
French (fr)
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EP0966638A1 (de
Inventor
Didier Christian Beudon
Pierre Bridenne
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.)
UNIR Ultra Propre Nutrition Industrie Recherche
Unir
Original Assignee
UNIR Ultra Propre Nutrition Industrie Recherche
Unir
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Publication date
Application filed by UNIR Ultra Propre Nutrition Industrie Recherche, Unir filed Critical UNIR Ultra Propre Nutrition Industrie Recherche
Publication of EP0966638A1 publication Critical patent/EP0966638A1/de
Application granted granted Critical
Publication of EP0966638B1 publication Critical patent/EP0966638B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 present invention relates to a device for separating a first and a second zone in which there are different atmospheres.
  • the term "environment” here designates the aeraulic conditions, the gas and particulate concentrations, and in particular the concentration of agents contaminants, pressure and temperature conditions, humidity etc.
  • the invention finds a particularly advantageous application in industrial fields of food industry, medicine, biotechnology, electronics, nuclear, and chemistry, in which it is necessary to maintain different atmospheres in communicating areas, everything by allowing frequent passage of objects or products from one area to another.
  • Protection by mechanical airlock consists in interposing between two zones with isolate from each other, an area where the air is controlled, separated from said areas by watertight doors that can be opened and closed.
  • ventilation protection consists of injecting into the area to be protected, a laminar flow which blows outward through opening access to this area.
  • the dynamic containment is ensured by implementing extraction ventilation in this contaminated space.
  • a rule of thumb requires a minimum speed of the ventilated air of the order of 0.5 m / s in the opening plane by which the two zones communicate, in order to avoid transfer, of the contamination in the protected area.
  • this protection solution requires processing and controlling, according to the whole area to be protected, whether it is the clean area or the contaminated area.
  • this ventilation protection technique only provides one-way protection, that is, it only acts when transfers of contamination is only possible in one direction.
  • the air curtain protection technique consists of injecting simultaneously, in the separation zone by which the two zones communicate, one or more jet of clean air, adjacent (s) and of the same direction, which forms (s) a fictitious door between the area to be protected and the contaminating area.
  • the documents FR - A - 2 530 163 and FR - A - 2 652 520 provide systems that use an air curtain to separate a polluted area from an area clean.
  • the air curtain is formed by two jets of clean air adjacent and in the same direction. Dynamic separation is here ensured by a first relatively slow air jet, the sting of which covers an entire opening.
  • the second jet relatively fast compared to the slow jet, is positioned between the jet slow and clean area. Its function is to stabilize the slow jet, by an effect suction plate which presses the latter against the rapid jet.
  • the document FR - A - 2 652 520 proposes to inject simultaneously into the clean air curtain, clean ventilation air, at a temperature suitable for need, inside the clean area to protect. It is specified that this clean air of ventilation must be injected at a flow rate substantially equal to the flow induced by the face the rapid jet of the air curtain, which is in contact with clean ventilation air.
  • the air curtain technique does not solve correctly the problems in particular of transfer of contamination linked to a possible overpressure in one of the zones to be separated.
  • this airlock has the form of a limited channel externally through the ground, a side wall and a horizontal cover wall.
  • a protective flow is blown into this channel through slots supplied with air and distributed in the side wall, the floor and the horizontal cover wall. This flow of protection is blown in so that when it leaves the canal, it fills the entire of the section of said channel.
  • the protective flux has a sufficiently high speed to form a barrier to an air path directed through the channel in the opposite direction to this one.
  • the invention offers a new improved device for separating a first and a second areas in which there are different atmospheres, which presents high efficiency and creates an insurmountable barrier between the two zones, resistant to drafts in particular to block the passage of the contamination from one area to another while allowing high speed transfer objects or products between the two areas without breaking their containment, including where there is a risk of cross-contamination between them.
  • the separation device in the separation device according to the present invention, it is created between the inlet and the outlet of the buffer zone, a pressure difference which Resists drafts and blocks the passage of contamination possible from one zone to another via the impassable barrier.
  • This impassable barrier according to the invention is created in a first part of the buffer zone located between its entrance and its central region.
  • the barrier created in the separation device according to the invention can advantageously constitute also a brake between an overpressure zone and the outside in order to limit the air flow out of the overpressure zone to the outside.
  • the longitudinal axis X of the buffer zone is a horizontal axis
  • the air injection means comprise vertical slots provided on the faces internal of the vertical walls delimiting said buffer zone, said slots being positioned at the entrance to the buffer zone, on either side of the said axis longitudinal X facing each other, and supplied with clean air.
  • four vertical slots may be provided on each of the vertical internal faces opposite the buffer zone.
  • the pressure resistance capacity of the device of separation according to the invention and more particularly of the buffer zone of this device is substantially proportional to the flow of air blown through said slits or the square of the blowing speed of the clean air injected through of said slots.
  • the buffer zone is delimited by two walls opposite verticals, a background and a ceiling which form a rectangular parallelepiped whose cross section is of the order of 0.2 m2, and the air injection means inject through said slots jets of clean air at a flow rate of the order of 400 m3 / h so that the impassable barrier formed inside said zone of buffer be able to withstand a pressure difference between the outlet and the entrance to the buffer zone between approximately 5 and 10 Pascals.
  • the insurmountable barrier created inside of the buffer zone further reduces the rate of contamination transferred between entry and exit.
  • the ratio between the flow of sterile and clean air injected into the through said perforations and the flow of clean air jets injected at the entrance to said buffer zone towards its exit is between approximately 0.5 and 1.
  • FIGs 1 and 2 there is shown a separation device 100 of a first and second zones 10, 20 in which atmospheres prevail different.
  • the first zone 10 is here an area to be protected, for example an area clean in which the air is sterile and where there is generally a slight overpressure.
  • the second area 20 is for example a dirty area under pressure atmospheric, in which the air is loaded with contaminating agents.
  • the separation device 100 shown in Figures 1 and 2 here comprises two vertical walls 110a facing each other, a ceiling 110c and a bottom 110b which form a rectangular parallelepiped and delimit between them an area buffer 110.
  • This buffer zone 110 extends along a longitudinal axis X, here horizontal, between the first and second zones 10, 20.
  • the buffer zone 110 has a length of about 0.8 m and a cross section of about 0.2 m2.
  • the buffer zone 110 communicates by an entry 111 with the first zone 10 to be protected or confined and via an outlet 112 with the second zone 20.
  • the surfaces of inlet 111 and outlet 112 of buffer zone 110 are identical and correspond to the cross section thereof.
  • the separation device 100 comprises injection means 120, 120a which open at the entrance 111 of the buffer zone 110 and which are capable of injecting on either side of the longitudinal axis X of said zone buffer 110, towards its outlet 112 two jets of clean air 121, 122 at speed elevated in oblique directions Y1, Y2 relative to said axis X so that these two clean air jets 121, 122 meet approximately in a central region 113 of said buffer zone 110.
  • the air injection means comprise slots 120a vertical, here four 120a vertical slots, provided on each side internal walls 110a delimiting said buffer zone, positioned at level of entry 111, on either side of said longitudinal axis X facing each other of the others and turned towards said buffer zone 110.
  • the slots 120a are supplied with clean air through ducts 120 connected to inlets clean air 101 provided on the upper part of the vertical walls 110a of the separation device 100.
  • the air flow injected through of said slots 120a is of the order of 430 m3 / h, which corresponds to a speed discharge in the buffer zone of 0.7 m / s.
  • Figure 2 shows more particularly the ventilation operation of the separation device 100.
  • two planar clean air jets 121, 122 are injected at high speed in oblique directions Y1, Y2 relative to the longitudinal axis X of buffer zone 110.
  • This air jet 123 cannot stably remain in the middle of the zone buffer 110 and moves laterally to hang on one of the two vertical walls 110a of the separation device 100, according to a behavior classic jets.
  • This phenomenon of hanging of the air jet 123 on one of the walls 110a of the separation device 100 creates two recirculation zones 124, 125 of the air from the second zone 20, one of the recirculation zones being closed 124 by the clean air jet 123, the other recirculation zone 125 being open and communicating with the second zone 20.
  • the pressure resistance capacity of the device separation is approximately proportional to the supply air flow or to the square of the, speed blowing air through the slots.
  • the vertical walls 110a opposite comprise perforated sheets and supplied by means of insufflation with sterile and clean air so as to blowing clean air into said buffer zone 110 through said perforations 110'a.
  • the said air perforations 110a "are supplied with sterile air by through the air inlets 101 provided on the upper part of the walls 110. It should be noted that in this case, the air inlets 101 providing the sterile air at said perforations, are distinct from those supplying the conduits 120 air to the slots, and vice versa.
  • the sterile and clean air flow injected through the perforations 110a ' is different from that of the air jets 121, 122 injected into the buffer zone 110 via the slots 120a, the ratio of the two flow rates being between approximately 0.5 and 1, preferably equal to 0.5.
  • the flow of the clean air injected through the perforations 110a ′ is of the order of 200m3 / h.
  • FIG 3 there is shown schematically a bench assembly of the separation device 100.
  • upstream of the separation device 100 there is a clean enclosure 10, equipped with an absolute ceiling filter 3 surmounted by a fan 2 and a prefilter 1.
  • This absolute ceiling filter 3 allows create a vertical unidirectional air flow in the clean enclosure, towards the floor of this enclosure.
  • the floor of this clean enclosure 10 consists of perforated sheets removable. This makes it possible to vary its resistance to the passage of air.
  • the floor of the dirty enclosure is also made of perforated sheets.
  • windows 11 and 21 are provided. to visualize what is happening inside the speakers 10 and 20 respectively.
  • a filtration box 13 associated with a fan 14 which allows to feed the arrivals 101 (see figure 1) provided on the walls vertical 110a of the suction device 100, for injecting clean air via the conduits 120 of the injection means, through slots 120a towards the inside of the buffer zone 110 of the separation device 100.
  • a conveyor 5 whose geometry is adapted to that of the buffer zone 110 passes through said buffer zone 110 of the suction device 100 to transfer to high rate of products or objects from clean enclosure 10 to dirty enclosure 20, and vice versa.
  • the assembly is mounted on supports 4 placed on the floor of the room test.
  • the purpose of the tests carried out on this test bench was to verify that the barrier created in the separation device 100 according to the invention, was indeed insurmountable to the contamination which could be conveyed between the two enclosures or zones when transferring products or objects from one zone to another by through conveyor 5 and that this impassable barrier was capable of resist a pressure difference established between the two enclosures, with possibly an overpressure in the dirty enclosure 20.
  • the separation device according to the invention must be capable of resist such reverse overpressure.
  • the impassable barrier created in the central part (located about abscissa 0.4 m) of the buffer zone of the separation device according to the invention is capable to resist a pressure deviation of the order of 10 Pascals, which is entirely interesting.
  • the separation device according to the invention reduces the rate of contamination transferred between the dirty enclosure and the clean enclosure.

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  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ventilation (AREA)
  • Air Bags (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Housing For Livestock And Birds (AREA)
  • Gyroscopes (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Character Input (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Image Analysis (AREA)

Claims (5)

  1. Vorrichtung (100) zum Trennen einer ersten und einer zweiten Zone (10,20), in denen unterschiedliche Milieus herrschen, dadurch gekennzeichnet, daß sie umfaßt:
    eine Pufferzone (110), die sich entlang einer longitudinalen Achse X zwischen der ersten und der zweiten Zone (10,20) erstreckt und durch einen Eingang (111) mit der ersten Zone (10) und durch einen Ausgang (112) mit der zweiten Zone (20) in Verbindung steht, und die durch zwei einander gegenüberliegende vertikale Wände (110a) begrenzt ist, die sich entlang der Achse X erstrecken und perforierte Bleche umfassen,
    Einblasmittel, die dazu geeignet sind, sterile und saubere Luft in die Pufferzone (110) durch die Perforationen (110a') der vertikalen Wände (110a) einzublasen, und
    Luftzuführmittel (120,120a), die auf der Höhe des Eingangs (111) der Pufferzone (110) münden und dazu geeignet sind, beiderseits der longitudinalen Achse X in der Richtung des Ausgangs (112) der Pufferzone (110) zwei Strahlen sauberer Luft (121,122) mit hoher Geschwindigkeit zuzuführen, die sich in bezüglich der Achse X schrägen Richtungen (Y1,Y2) erstrecken und sich in einer zwischen dem Eingang (111) und der zentralen Region (113) der Pufferzone (110) gelegenen Region kreuzen, so daß sie eine undurchlässige Barriere bilden, die die erste Zone (10) von der zweiten Zone (20) trennt.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die longitudinale Achse X der Pufferzone (110) eine horizontale Achse ist und die Luftzuführmittel vertikale Schlitze (120a) umfassen, die auf den Innenseiten der vertikalen wände (110a) vorgeeehen sind, die die Pufferzone (110) begrenzen, wobei die Schlitze (120a) auf der Höhe des Eingangs (111) der Pufferzone (110) beiderseits der longitudinalen Achse X und einander gegenüberliegend angeordnet und mit sauberer Luft gespeist sind.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß vier vertikale Schlitze (120a) auf jeder der der Pufferzone (110) gegenüberstehenden vertikalen Innenseiten vorgesehen sind.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Pufferzone (110) durch zwei einander gegenüberstehende vertikale Wände, einen Boden und eine Decke begrenzt ist, die ein rechteckiges Parallelepiped bilden, dessen Querschnittsfläche in der Größenordnung von 0,2 m2 liegt, und daß die Luftzuführmittel (120,120a) durch die Schlitze (120a) Strahlen sauberer Luft mit einer Durchflußleistung in der Größenordnung von 400 m3 pro Stunde spritzen, damit die im Inneren der Pufferzone (110) gebildete undurchlässige Barriere dazu in der Lage ist, einem Druckunterschied zwischen dem Eingang (111) und dem Ausgang (112) der Pufferzone (110) zwischen 5 und 10 Pascal einschließlich zu widerstehen.
  5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Verhältnis zwischen der Durchflußleistung der sterilen und sauberen Luft, die durch die Perforationen (110a') eingespritzt wird, und der Durchflußleistung der Strahlen sauberer Luft (121,122), die auf der Höhe des Eingangs (111) der Pufferzone (110) in Richtung des Ausgangs (112) eingespritzt werden, ungefähr zwischen 0,5 und 1 einschließlich liegt.
EP98912564A 1997-03-03 1998-02-27 Vorrichtung zum trennen von zwei zonen mit verschiedenen umgebungen Expired - Lifetime EP0966638B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9702486 1997-03-03
FR9702486A FR2760199B1 (fr) 1997-03-03 1997-03-03 Dispositif de separation de deux zones a ambiances differentes
PCT/FR1998/000388 WO1998039604A1 (fr) 1997-03-03 1998-02-27 Dispositif de separation de deux zones a ambiances differentes

Publications (2)

Publication Number Publication Date
EP0966638A1 EP0966638A1 (de) 1999-12-29
EP0966638B1 true EP0966638B1 (de) 2002-05-02

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Application Number Title Priority Date Filing Date
EP98912564A Expired - Lifetime EP0966638B1 (de) 1997-03-03 1998-02-27 Vorrichtung zum trennen von zwei zonen mit verschiedenen umgebungen

Country Status (9)

Country Link
US (1) US6146267A (de)
EP (1) EP0966638B1 (de)
JP (1) JP3851355B2 (de)
AT (1) ATE217069T1 (de)
CA (1) CA2283129C (de)
DE (1) DE69805169T2 (de)
ES (1) ES2175695T3 (de)
FR (1) FR2760199B1 (de)
WO (1) WO1998039604A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10304011A1 (de) * 2003-02-01 2004-08-05 Kendro Laboratory Products Gmbh Klimavorrichtung und Verfahren zum Abtauen eines Wärmeaustauschers einer Klimavorrichtung
US7086648B1 (en) 2003-08-22 2006-08-08 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Acoustic seal
US7946124B2 (en) 2007-01-25 2011-05-24 Leo A. Daly Company Temperature controlled storage facilities and methods
JP5389194B2 (ja) * 2010-02-15 2014-01-15 興研株式会社 局所クリーンゾーン形成装置
US20120297741A1 (en) * 2011-05-25 2012-11-29 John Reid Open top work cell having a fluid barrier
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
GB2500672B (en) * 2012-03-29 2016-08-24 Howorth Air Tech Ltd Clean air apparatus
JP7139023B2 (ja) * 2019-04-26 2022-09-20 株式会社日立プラントサービス 環境試験室、及び、空気調和システム
US20230384714A1 (en) * 2022-05-25 2023-11-30 Hewlett-Packard Development Company, L.P. Exhaust hood
US20240145290A1 (en) * 2022-10-26 2024-05-02 Kla Corporation Method and apparatus for dynamic sealing between zones of ultra-clean vacuum system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1087787B (de) * 1952-03-13 1960-08-25 Sulzer Ag Abschirmung von Durchgangskanaelen mit OEffnungen fuer die Zu- und Abfuehrung der die Abschirmung bildenden Sperrstroemungen
DE1095497B (de) * 1954-05-12 1960-12-22 Schilde Maschb Ag Lufttuer fuer Trockner und Industrieoefen
US3143952A (en) * 1960-08-24 1964-08-11 Dualjet Corp Method and apparatus for conditioning gas
GB1237694A (en) * 1968-08-19 1971-06-30 Progress Jets Ltd Improvements relating to air curtains
GB1488513A (en) * 1974-04-26 1977-10-12 Howorth Air Eng Ltd Clean air zone
US4700688A (en) * 1979-03-08 1987-10-20 Cambridge Engineering, Inc. Ventilating hood
FR2530163B1 (fr) 1982-07-15 1986-08-29 Commissariat Energie Atomique Procede de confinement de la pollution d'un local a l'aide d'une veine gazeuse
US4534277A (en) * 1983-08-18 1985-08-13 Richard H. Gillmor Geometric air projection and containment
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.
US5306209A (en) * 1992-05-04 1994-04-26 Lang Fred D Contaminant shield for viewing ports
US5413529A (en) * 1993-09-09 1995-05-09 Intermec Corporation Multi-component housing
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
JP2001513873A (ja) 2001-09-04
DE69805169D1 (de) 2002-06-06
ES2175695T3 (es) 2002-11-16
US6146267A (en) 2000-11-14
WO1998039604A1 (fr) 1998-09-11
ATE217069T1 (de) 2002-05-15
FR2760199A1 (fr) 1998-09-04
CA2283129A1 (fr) 1998-09-11
DE69805169T2 (de) 2002-11-07
FR2760199B1 (fr) 1999-05-21
CA2283129C (fr) 2005-08-02
JP3851355B2 (ja) 2006-11-29
EP0966638A1 (de) 1999-12-29

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