WO2002093082A1 - Procede et dispositif pour diffuser un flux de protection a l'egard d'une ambiance environnante - Google Patents
Procede et dispositif pour diffuser un flux de protection a l'egard d'une ambiance environnante Download PDFInfo
- Publication number
- WO2002093082A1 WO2002093082A1 PCT/FR2002/001627 FR0201627W WO02093082A1 WO 2002093082 A1 WO2002093082 A1 WO 2002093082A1 FR 0201627 W FR0201627 W FR 0201627W WO 02093082 A1 WO02093082 A1 WO 02093082A1
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- Prior art keywords
- flow
- air
- main
- wall
- lateral
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000001681 protective effect Effects 0.000 title abstract description 4
- 230000004907 flux Effects 0.000 title abstract 2
- 238000009792 diffusion process Methods 0.000 claims abstract description 85
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 abstract description 6
- 239000003570 air Substances 0.000 description 81
- 239000011148 porous material Substances 0.000 description 11
- 239000012080 ambient air Substances 0.000 description 9
- 238000011109 contamination Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 235000013305 food Nutrition 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
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- 238000005192 partition Methods 0.000 description 3
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- 239000000443 aerosol Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000002537 cosmetic Substances 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 235000021170 buffet Nutrition 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
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- 238000009432 framing Methods 0.000 description 1
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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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F2013/0608—Perforated ducts
Definitions
- the present invention relates to a method for diffusing a flow, for example of treated air, in order to protect an area with regard to a risk of contamination, in particular airborne, present in a surrounding environment.
- a diffusion device associated with the method, that is to say a device for diffusing a healthy flow in an area to be protected, for example an area of an intervention station.
- the intervention station can, for example, be a work station or a storage station.
- the air flow prevents contaminating agents contained in the surrounding environment from entering the area to be protected, and particularly protects sensitive products present in this area.
- air is used to designate any substantially gaseous fluid suitable for the use of the invention, for example a specific gas or gas mixture or even an aerosol loaded with one or more substances in suspension. This air can be extracted from the atmosphere and possibly treated to make it healthy with respect to the product to be protected.
- the invention can be used in the food industry or in the pharmaceutical industry, but also in the catering industry, the cosmetic industry, the electronics or even the hospital environment.
- this flow must be laminar, that is to say that it is characterized by a speed whose value and direction are uniform throughout the flow, and by a number of Reynolds less than 3000, a value which corresponds to flow characteristics beyond which the flow becomes turbulent.
- a conventional diffusion device comprises a diffusion wall for a laminar flow.
- the flow moves away from the diffusion wall, the flow carries around its periphery generally stagnant ambient air, the characteristics of which are different.
- the ambient air gradually mixes by induction with the air in the flow, contaminating it and creating disturbances which progressively reduce the laminar section of the flow and therefore the volume that can be protected.
- Document FR-A-2,785,040 discloses a diffuser which creates a decontaminated atmosphere around the air in a flow. This result is obtained by maintaining around this first flow, that is to say between it and the ambient air, second slower side flows.
- the protective barrier thus formed is destroyed when it is crossed by an operator, by a third-party product or element and it takes considerable time to be reconstituted.
- a very slow first flow is desired, even slower second flows will generally be ineffective.
- the distance beyond which such a device becomes ineffective is relatively short due to the low energy of the slow flows, their desired divergence and therefore their rapid dilution in the ambient air.
- the documents FR 2.748.508 and FR 2.788.843 describe cylindrical porous sheaths diffusing a flow whose speed increases from the center to the edges. These variations do not allow a laminar flow to be obtained.
- the document US Pat. No. 3,776.121 presents walls for diffusing a flow making it possible to vary the flow rate, and therefore the speed of the air flow, progressively from the center of the flow towards its edges. As with the sheaths already mentioned, no laminar flow is obtained.
- the document WO 91/0521 0 discloses, particularly in FIG. 3, a device for diffusing a slow flow, the speed of which is uniform, and a rapid flow, the speed of which is uniform.
- This fast flow is diffused parallel to the slow flow and at the periphery of the latter.
- the role of fast flow is to protect the slow flow from contamination by ambient air.
- the speed characteristics of the slow flow which can be laminar, and of the fast flow, generally turbulent, are clearly different.
- the fast flow, moving away from the diffuser generates in the slow flow more and more disturbances which gradually reduce the section of the slow flow and therefore the protectable volume.
- the object of the invention is therefore to propose a method and an associated device for creating a confinement barrier around an area to be protected bathed by a main air flow that is kept undisturbed and for example substantially laminar, that is to say that the confinement barrier does not create turbulence in the main flow, the main flow being thus protected, in particular from the risks of contamination and pollution and the risks of disturbance if it is laminar.
- such a method for protecting an area of an intervention station consists in establishing in the direction of this area a substantially parallel air flow having, beyond at least one border, a progressively increased speed. . It is characterized in that below said border the air flow is given a speed which is substantially uniform along a section of the flow in a plane transverse to the direction of flow.
- a method for protecting a laminar flow in particular from the risks of contamination, pollution and disturbance, is characterized in that a lateral flow having a common border with the laminar flow is established, this lateral flow having a progressively increased speed beyond the border, and its speed at the border being substantially equal to that of the laminar flow.
- An air diffusion device for implementing such a method comprises means for generating at least one main air flow and over at least part of the periphery of the main air flow, a flow of lateral air having a flow velocity greater than the main air flow, so as to form a substantially parallel air flow composed at least in part with the main air flow and the lateral air flow.
- This diffusion device is characterized in that it further comprises means so that the speed of the air in the main air flow is substantially uniform along a two-dimensional section of the flow in a plane transverse to the direction flow.
- the means for generating may comprise at least one porous main wall, substantially planar and at least one porous side wall disposed at the periphery of the main wall, said main wall being adapted to diffuse the main air flow, for example laminar, according to a main direction and said side wall being arranged to diffuse a lateral air flow which diverges from the main direction, preferably progressively as one traverses the side wall away from the main wall, while at the outlet from the side wall, the section available for the flow of a given quantity of air in the side flow becomes smaller as one moves away from the main flow, so that the side flow becomes more and more faster when moving away from the main flow.
- the device may comprise a skirt so that the side wall is disposed between the main wall and the skirt, the latter serving as a deflector for at least part of the divergent flow coming from the side wall.
- a skirt will be chosen whose surface in contact with a flow is defined by generatrices substantially parallel to the flow or parallel to the main direction.
- the skirt may extend in a plane substantially parallel to the main direction.
- the diffused air that is to say the air which has just passed through one of the walls, will preferably have a speed of substantially constant value over the whole of the diffusion wall. Its value may however be gradually variable as one traverses the side wall away from the main wall, for example continuously increasing from the value of the speed of the laminar flow. This can be obtained by varying the pressure drops across the porosities of the side wall. Preferably the value of the slow speed is from 0.2 to 0.6 m / s and that of the fastest speed is between 0.6 and 3 m / s.
- the air source may be common to the lateral and main air flows.
- the main and side walls may constitute part of an envelope constituting a sheath leading the air at least to these walls.
- the volume of air defined by this envelope constitutes the air source and the envelope can comprise other porous walls or not.
- the pressure of the source upstream of the diffusion wall is advantageously between 0 and 500 Pascals.
- the skirt will preferably be arranged in order to constitute a deflector for the lateral flow so that it forms a deflected flow, for example substantially parallel to the main direction.
- the skirt will be arranged so that the deflector is not only a guide but also an obstacle to the flow of the flow and therefore so that a flow section available for lateral flow is reduced as that -this is deflected.
- the profile can be gradually curved along the side wall as one moves away from the main wall. If the lateral air flow is diffused at all points perpendicular to the side wall, its direction varies gradually with the increasing inclination of this wall. Thus, air from the lateral flow is directed towards the deflecting obstacle formed by the skirt, and more particularly towards points of the skirt and at angles which may be different depending on the point of the side wall from which this air has been diffused.
- At least part of the diffusion wall may be made of a flexible material, for example a washable or interchangeable fabric or also for single use, permeable to air.
- the diffusion wall may also include rigid parts, for example made of stainless steel. It can thus be a perforated sheet or a metal screen. In general, it can be made of any porous material that does not generate particles or other airborne pollution.
- the diffusion device can be oriented so that the main flow is directed substantially vertically downwards, for example so that the main flow bathes an area to be protected by an intervention station.
- the skirt is chosen to be of an appropriate length to maintain the consistency of the flows as far as possible up to the zone to be protected without hampering the access of operators and / or of the products treated in the zone.
- each skirt will have beyond the main wall a length substantially equal to the half-distance between the two skirts .
- a skirt will have a length substantially equal to or greater than three times the thickness of the rapid flow, that is to say three times the shortest distance separating the skirt from the main wall .., _Aur elà interviewjde. each jups, the.
- the air used can be extracted from the atmosphere and, for example, treated to make it sterile. Particularly if the diffused air is not used for the breathing, it is also possible to use air comprising a specific gas or gas mixture, for example neutral with respect to the treated products, that is to say which does not interact with these products. It may thus be desired that the air does not contain an oxidant for these products.
- FIG. 1 is a schematic representation of a transverse and vertical section of a diffusion device according to the invention used as a fan ceiling
- FIG. 2 is a detail view of FIG. 1, in the vicinity of a side wall, illustrating air flows from the diffusion device
- FIGS. 3 to 5 are details illustrating possible geometric configurations for a side wall
- FIG. 6 is a perspective representation of a diffusion wall modular for a diffusion device according to the invention.
- FIG. 1 represents a diffusion device 1 used as a blowing ceiling, that is to say that it is arranged above an area 2 to be protected, which may correspond to part or all of a post of 'intervention. It diffuses vertically downwards over zone 2, a suitable gas, for example dust-free air 9.
- the diffusion device 1 comprises a metal box 3, which is open downwards between parallel and opposite banks 5.
- a diffusion wall 4 extends between the two banks 5 across the entire opening defined between the banks 5.
- Skirts 6 are arranged along opposite edges 7 of the box 3, parallel to the banks 5, so that the wall of diffusion 4 is located between the skirts 6 directed downwards from the lower side of the casing 3.
- the box 3 and the diffusion wall 4 define an interior volume 8 which is regularly supplied with air, treated and pressurized, and serves as an air source for the diffusion device.
- a supply not shown, is disposed upstream of the interior volume 8. It generally comprises a prefilter for air drawn from the atmosphere, then a fan and finally a very high efficiency filter making it possible to ensure suitable dust removal from the air.
- the diffusion wall which is here a perforated metal sheet, can be broken down into three walls, a main wall 1 1 substantially planar and horizontal, and two side walls 1 2 which are quarter cylinders each having an axis parallel to the edges 5 Each side wall is arranged between a respective one of the edges 5 of the box and the main wall, forming a curved extension of the main wall 1 1.
- the axes of the cylinders are in the interior volume 8, so that the side walls are convex on the exterior side of the box 3.
- Each perforation of the diffusion wall 4 is a pore through which air can be diffused from the interior volume 8 through the diffusion wall 4.
- the porosity is the same on the whole of the diffusion wall, it is that is to say that the pores are regularly distributed and of substantially identical shape and size. They are small enough and close together so that each air stream 14 from any pore 1 3 forms a coherent whole with air streams from neighboring pores.
- the diffusion wall is thin and the pores have no directive role, that is to say that they do not, for example, have the shape of a nozzle which would impose a direction on the air which is diffused.
- the air is diffused substantially perpendicular to the diffusion wall 4 at the right of each pore.
- the internal volume 8 forms a single source, of substantially uniform pressure, the value of the diffusion speed V1 of all the air streams is substantially identical.
- the air 9 coming from the diffusion device 1 comprises a main air flow 91 coming from the main wall 1 1, and lateral air flows 92 each coming from one of the side walls 1 2.
- the main wall 1 1 forms a horizontal plane, so that the main diffusion speeds V1 1 in the main air flow 91 at the time of its diffusion through the wall 1 1 are uniform in value and in direction in a main direction D, directed vertically towards the bottom.
- the value of the main diffusion speeds V1 1 is kept below a limit value, for example 0.6 m / s, beyond which an air flow is no longer laminar.
- the main stream diffused is laminar.
- the main flow 91 from the main wall 1 1, maintains its uniform speed. That is to say that its main flow speed V21 (FIG. 2) when it crosses a plane P corresponding to the lower edge 1 6 of the skirt 6, is substantially identical in direction and in value to the main diffusion speed V1 1.
- the lateral diffusion speeds V1 2 in a lateral air flow 92 at the time of its diffusion through the wall 1 2 are uniform in value and their value is equal to that of the main diffusion speeds V1 1.
- the orientation of the speed of each lateral air stream depends on the position of the pore from which the stream originates.
- the directions of the lateral diffusion velocities V1 2 progressively diverge from the main direction D as one travels the side wall 1 2 away from the main wall 1 1.
- the direction of a lateral diffusion speed V1 2 of an air stream coming from a pore close to the main wall is substantially identical to the main direction D, therefore substantially parallel to the skirts 6.
- the direction of a lateral diffusion speed V1 2 of a thread coming from a pore close to an edge 5 is substantially perpendicular to the main direction D and therefore directed horizontally towards the closest skirt 6, substantially perpendicular to the plane of that same skirt.
- the skirt 6 is an obstacle to the flow of the air streams 14 diffused through the side wall 1 2.
- the air streams thus diffused will concentrate against the skirt 6, which deflects them, then follow it to its lower edge 1 6.
- a horizontal plane P see FIG.
- the lateral flow velocities V22 of the deflected lateral flow have directions that are substantially identical to each other and parallel to the main direction D, but values which start from a minimum value equal to the speed V21 of the main flow along the border F and increase as one travels the plane P by approaching the lower edge 1 6 of the skirt 6.
- the border F is a substantially vertical plane which is preserved beyond the plane P, as is the laminar nature of the main flow.
- this protected area can be divided into three parts. Between the borders F a part 21 bathed by the main flow 91, laminar and slow, and beyond the borders F two lateral parts 22 bathed by a lateral flow, all the more rapid and turbulent as one moves away from the borders.
- the skirts are short enough to allow a free passage under their lower edge 1 6 and above zone 2.
- the external threads of the lateral flow can then slow down, causing the ambient air and by expanding in it, but the nets located below prevent too strong a slowdown and, in any case, maintain the protection of the main flow.
- a gap has been formed between the edge 5 of the box 3 and the skirt 6 to create a leak 20 of part of the lateral flow. This avoids the creation of excessive turbulence in an area limited by the box, between the edge
- the skirt 6 is provided for dismantling, it is difficult to ensure the seal between the skirt 6 and the box 3. A pump effect through a poorly made seal would cause air pollution diffused by ambient air 99.
- the overpressure between the side wall and the skirt, by generating the leak 20, makes it possible to avoid this pump effect without requiring a seal between the skirt 6 and the box 3.
- the diffusion wall is then adapted to allow the passage of light through the wall into the intervention area. .
- the porosity may be sufficient for the passage of light and / or the wall be made of a transparent or translucent material.
- the lighting means can also be arranged in the wall.
- These treatment devices may include air conditioning means for hygrometry or air temperature, means for mixing gases therein or means for loading the air into particles thus forming an aerosol.
- These particles can be liquid or solid, for example a powder.
- These particles can be a disinfectant which keeps the diffusion wall free from contamination.
- the means for charging the air may be nozzles arranged upstream of the diffusion wall. Other means such as pulsed light or ultra-violet lamps can be inserted upstream of the diffusion wall to decontaminate the air and surfaces, such as those of the box or the wall.
- FIG. 3 it consists of a flat part 23 extending parallel to the direction D from the bank 5 and connected to the main wall 1 1 by another flat part 24 inclined at 45 degrees relative to the main wall.
- the side wall 1 2 forms a right angle with the main wall and follows a straight profile to the edge 5.
- the main wall extends to the vertical from the bank 5 then it is connected by a side wall consisting of two quarters of cylinders 26, 27 framing a flat part 25 and perpendicular to the main wall.
- the skirt is offset laterally outward relative to the box and rises higher than the bank 5.
- the edge 7 of the box is coincident with the bank 5.
- FIG. 6 presents a diffusion wall made up of three modules, normally contiguous but presented apart for the clarity of the description. It comprises two end modules 30 and an intermediate module 31, all built on a rectangular base.
- the end module comprises on two opposite sides of a main wall 1 1, side walls 1 2, and on its two other opposite sides a partition 32.
- the two end modules comprise on three of their sides a side wall 1 2 and on the fourth side a partition 32 to coincide with a separation 32 of the intermediate module 31 during their assembly.
- the partitions 32 extend perpendicularly to the base of each of the modules, their main role is to ensure the rigidity of each of the modules, as well as to participate in airtightness between two contiguous modules. It is thus possible, as required, to build a diffusion wall comprising several intermediate modules or, on the contrary, a wall not comprising only two end modules mounted contiguous. In the case where contiguous modules are connected to different sources, they can make it possible to diffuse differently treated air without interrupting the continuity of the laminar flow. Thus, for example, a first module can diffuse simply filtered air and have a light source, a second module can make it possible to diffuse air charged with particles of water in the form of a mist and a third dry, hot air.
- the skirts can be rigid or flexible, transparent or not, short or long.
- walls close to the device can serve as skirts, whether horizontal or vertical, flat or not, smooth or rough, completely waterproof or only partially, provided that they constitute an effective deflector for the divergent lateral flow and that 'they do not introduce excessive turbulence.
- the box does not necessarily have the shape of a parallelepiped but can be the end of a sheath or the side of a sheath provided with an opening and edges to have a diffusion wall there.
- the invention can also be designed so that the main direction is not vertical. This direction can be horizontal in the case of a diffusing wall.
- An area to be protected can be mobile or not and have dimensions of a few centimeters or even include a conveyor of several meters. It is not necessarily a plan but can also be a volume.
- a diffusion device according to the invention can be adapted to protect an area whatever its dimensions.
- the lateral flow does not necessarily surround the entire main flow. It can be split and other more or less rapid or slow flows can occupy part of the periphery of the main flow or exist beyond the lateral flow.
- the intervention station can be limited to one machine or part of a machine. The station may not be provided for an operator to enter the flow during the normal operation of this machine.
- the invention is also not limited to the pharmaceutical industry but can also be used in any type of industry susceptible to airborne contamination, for example the food industry, the cosmetic industry, the electronics industry. , health and any type of laboratory. It can be installed in a room where dust or other contamination is already under control.
- the invention also finds applications in the distribution, for example of food and particularly for catering.
- the invention may include a display for food products made available to customers, for example as part of a buffet, or be used for the presentation of fresh products in a store, for example in a butcher or a pastry.
- the invention can find numerous applications. At a dentist, it can for example be adapted to diffuse a healthy flow on a jaw during treatment.
- An intervention vehicle can be equipped with the invention to protect injured people from bacterial contamination during their transport.
- An operating room or a recovery room can also include the invention for health purposes to distribute a healthy flow over all or part of a patient's body.
- the invention can include a bed. Particularly in the case of a severely burned person, the invention may include means for diffusing highly moist air over the wound, possibly supplemented with calming and / or disinfecting substances. Air loaded with a disinfectant substance, diffused by the invention, is particularly suitable for avoiding nosocomial infections.
- the intervention station can be equipped with means for absorbing the flow so that this flow is little or not disturbed in the vicinity, for example, of a table or of a conveyor intended to support the sensitive product. So a support of this type may be porous and equipped with an air extraction device. Absorption means will also be useful if the diffused air must not mix with the surrounding environment, particularly if the diffused air is toxic. Furthermore, a diffusion device according to a prior art can be transformed into a diffusion device according to the invention, by replacing an anterior diffusion wall with a main wall and a side wall according to the invention suitably sized and by adding as many skirts as needed.
- Another possibility is to add a diffusion device according to the invention to a preexisting diffusion device, thus creating, between a diffusion wall of the preexisting device and those of the device according to the invention, a homogenization space.
- This mixing space makes it possible to homogenize the static and dynamic characteristics, in particular the pressure, of the air before its diffusion.
- This space may advantageously have a thickness equal to the height of the side walls.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Duct Arrangements (AREA)
- Ventilation (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Details Of Aerials (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002447086A CA2447086C (fr) | 2001-05-14 | 2002-05-14 | Procede et dispositif pour diffuser un flux de protection a l'egard d'une ambiance environnante |
DE60209897T DE60209897T2 (de) | 2001-05-14 | 2002-05-14 | Verfahren und vorrichtung zur diffusion einer schutzströmung unter inbetrachtziehung der umgebung |
AU2002304478A AU2002304478B2 (en) | 2001-05-14 | 2002-05-14 | Method and device for diffusing a protective flux with regard to a surrounding environment |
JP2002590315A JP2004525337A (ja) | 2001-05-14 | 2002-05-14 | 周囲環境に対する保護空気流を吹出すための方法および装置 |
US10/477,704 US7297050B2 (en) | 2001-05-14 | 2002-05-14 | Method and device for diffusing a protective flux with regard to a surrounding environment |
EP02732868A EP1387989B1 (fr) | 2001-05-14 | 2002-05-14 | Procede et dispositif pour diffuser un flux de protection a l'egard d'une ambiance environnante |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0106333A FR2824626B1 (fr) | 2001-05-14 | 2001-05-14 | Procede et dispositif pour diffuser un flux de protection a l'egard d'une ambiance environnante |
FR01/6333 | 2001-05-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002093082A1 true WO2002093082A1 (fr) | 2002-11-21 |
Family
ID=8863248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/001627 WO2002093082A1 (fr) | 2001-05-14 | 2002-05-14 | Procede et dispositif pour diffuser un flux de protection a l'egard d'une ambiance environnante |
Country Status (11)
Country | Link |
---|---|
US (1) | US7297050B2 (fr) |
EP (1) | EP1387989B1 (fr) |
JP (1) | JP2004525337A (fr) |
AT (1) | ATE320579T1 (fr) |
AU (1) | AU2002304478B2 (fr) |
CA (1) | CA2447086C (fr) |
DE (1) | DE60209897T2 (fr) |
ES (1) | ES2260436T3 (fr) |
FR (1) | FR2824626B1 (fr) |
PT (1) | PT1387989E (fr) |
WO (1) | WO2002093082A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2605896C2 (ru) * | 2011-10-03 | 2016-12-27 | Кокен Лтд. | Устройство выдувания очищенного воздуха |
TWI586476B (zh) * | 2012-12-07 | 2017-06-11 | 興研股份有限公司 | 局部空氣清潔化裝置 |
JP2020049476A (ja) * | 2018-09-28 | 2020-04-02 | ダイキン工業株式会社 | 渦輪発生装置 |
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JP7223125B2 (ja) | 2018-10-02 | 2023-02-15 | ライト-ハイト ホールディング コーポレイション | データセンタゾーン封じ込めのための空気バリアシステム |
RU2716299C1 (ru) * | 2019-08-07 | 2020-03-11 | Федеральное государственное бюджетное научное учреждение "Федеральный научный агроинженерный центр ВИМ" (ФГБНУ ФНАЦ ВИМ) | Модульная тепловая воздушная завеса для защиты проемов ворот с изменяемым вектором направления воздушной струи и регулируемой шириной щели |
WO2022039770A1 (fr) * | 2020-08-19 | 2022-02-24 | Itt Manufacturing Enterprises Llc | Systèmes de sécurité de l'air |
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- 2002-05-14 US US10/477,704 patent/US7297050B2/en not_active Expired - Fee Related
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2605896C2 (ru) * | 2011-10-03 | 2016-12-27 | Кокен Лтд. | Устройство выдувания очищенного воздуха |
TWI586476B (zh) * | 2012-12-07 | 2017-06-11 | 興研股份有限公司 | 局部空氣清潔化裝置 |
US10478874B2 (en) | 2012-12-07 | 2019-11-19 | Koken Ltd. | Local air cleaner |
JP2020049476A (ja) * | 2018-09-28 | 2020-04-02 | ダイキン工業株式会社 | 渦輪発生装置 |
Also Published As
Publication number | Publication date |
---|---|
US7297050B2 (en) | 2007-11-20 |
FR2824626A1 (fr) | 2002-11-15 |
PT1387989E (pt) | 2006-08-31 |
CA2447086C (fr) | 2009-12-22 |
DE60209897T2 (de) | 2006-11-16 |
AU2002304478B2 (en) | 2007-03-15 |
DE60209897D1 (de) | 2006-05-11 |
ES2260436T3 (es) | 2006-11-01 |
ATE320579T1 (de) | 2006-04-15 |
JP2004525337A (ja) | 2004-08-19 |
EP1387989A1 (fr) | 2004-02-11 |
US20040198215A1 (en) | 2004-10-07 |
CA2447086A1 (fr) | 2002-11-21 |
FR2824626B1 (fr) | 2004-04-16 |
EP1387989B1 (fr) | 2006-03-15 |
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