EP2902719B1 - Dispositif de rideaux - Google Patents

Dispositif de rideaux Download PDF

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Publication number
EP2902719B1
EP2902719B1 EP15152890.8A EP15152890A EP2902719B1 EP 2902719 B1 EP2902719 B1 EP 2902719B1 EP 15152890 A EP15152890 A EP 15152890A EP 2902719 B1 EP2902719 B1 EP 2902719B1
Authority
EP
European Patent Office
Prior art keywords
air
driving means
curtain
main
lateral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15152890.8A
Other languages
German (de)
English (en)
Other versions
EP2902719A1 (fr
Inventor
Mike Price
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.)
Thermoscreens Ltd
Original Assignee
Thermoscreens Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thermoscreens Ltd filed Critical Thermoscreens Ltd
Publication of EP2902719A1 publication Critical patent/EP2902719A1/fr
Application granted granted Critical
Publication of EP2902719B1 publication Critical patent/EP2902719B1/fr
Active 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
    • F24F2009/005—Use of air currents for screening, e.g. air curtains combined with a door
    • 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

  • An air-curtain or air-door provides a directed flow of air, or an airstream, across a doorway, entrance or other opening in order to provide separation between the masses of air on either side of the opening.
  • an air-curtain is provided by a downwardly directed blower fan, which produces a continuous flow of air across the full extent of the opening.
  • Such a flow of air impedes mixing of the air masses on either side of the opening.
  • the air blown from the air-curtain may be heated. This is particularly relevant where there is a temperature difference between the air on either side of the opening, and it is desired to keep the air on one side of the opening (normally the inside of a building) warm. Conversely, the air may be cooled where it is desired that the air on the inside of the building be kept cooler than that on the outside.
  • the air-stream produced by the air-curtain device should travel directly across the opening, without any gap between the airflow and the opening.
  • the opening is one which is closed when not in use, for example in a shop.
  • the doors of the shop and associated mechanisms must pass between the opening and the airstream in order that the opening can be closed. This results in a reduction in effectiveness of the air-curtain device as there is a gap between the airflow and the opening.
  • Attention is drawn to DE 35 23 937 A1 and DE 1154 252 B which disclose prior art air curtain devices.
  • DE 35 23 937 A1 discloses and air curtain device according to the preamble of claim 1.
  • an air curtain device according to claim 1.
  • provision of lateral air driving means which deliver an air-curtain which is angled to that of the main air driving means, allows an air curtain to be formed in a gap produced between the device and the opening by the air curtain device being spaced apart from the opening. In this way, an effective air curtain can be produced where the device is spaced apart from the opening which it is used for.
  • an installation comprising an opening, and an air-curtain device according to the first aspect installed at, but spaced apart from, one edge of the opening.
  • the airstream of the lateral air driving means is angled towards the sides of the opening, in order to close the gap and form an effective air curtain over the whole opening.
  • the air-curtain device 1 of the first embodiment is positioned across the top of an opening, which in the present embodiment is a doorway 2, and comprises main air driving means 3 for providing a main airstream across the opening 2 to form a main air-curtain 4, and lateral air driving means 5 for providing a lateral airstream angled relative to the airstream from the main air driving means 3 to form a lateral air-curtain 6.
  • the opening 2 is formed by a gap in a wall 7.
  • the main air-curtain 4 extends from the air-curtain device 1, which is mounted above the doorway 2, all the way to the opposite edge of the doorway 2, which, in the present embodiment is the floor.
  • the air-curtain device 1 is positioned away from the wall 7 and the doorway 2, to allow a door and the mechanism 8 therefor to be positioned so that the door closes the doorway 2.
  • the door is a sliding door, so that the air driving means of the air-curtain device can be positioned at the same height as the top of the doorway 2.
  • the provision of the door and mechanism 8 means that a gap g is provided between the doorway 2 and the air-curtain device 1.
  • the main air driving means 3 of the present embodiment is elongate, extends along the top of the doorway 2, and comprises a blower fan, and provides a main air-curtain 4 which extends from the top of the doorway 2 to the floor. As can be seen from figure 1 , this prevents or reduces airflow 9 from outside the doorway 2 from passing through the doorway 2 into the interior of the building in which the doorway 2 is formed. Thus a substantially reduced airflow 10 occurs into the building.
  • the main air-curtain 4 is not flush with the doorway 2, and at each side of the doorway 2, at end of the air-curtain device 1, air from outside the building can enter the building while bypassing the main air-curtain 4.
  • the lateral air driving means 5, each comprising a blower fan are provided at each end of the air-curtain device 1 above the doorway 2, which each provide a lateral airstream at one of the sides of the doorway 2, to form lateral air-curtains 6 at each side of the main air-curtain 4.
  • the lateral air curtains 6 are also generated above the doorway 2, and specifically, each extends from the plane of the main air-curtain 4 to the wall 7 substantially along the full height of the doorway 2. In this way, the lateral air-curtains 6 close the gap g and prevent or reduce air flow from the outside of the building around the sides of the main air-curtain 4. As the lateral air driving means 5 themselves do not extend to the wall 7 of the building, the door and mechanism therefor 8 can still operate normally.
  • lateral air driving means 5 were to extend all the way from the main air driving means to the wall, while this would allow a straight flow of air from the lateral air driving means to the floor to close the gap between the doorway 2 and the main air-curtain 4, this would not allow the door and mechanism therefor 8 to operate normally.
  • a separate fan which may be an auxiliary fan positioned behind the lateral airstream outlets to supplement the air volume flow rate of the lateral air-curtains
  • a single fan, or multiple fans may be provided, housed and ducted so as to provide/drive air for both the main and lateral air-curtains 4, 6.
  • the main and lateral air-driving means 3, 5 may therefore have one or more common air blower fans. Therefore in this embodiment, the main and lateral air-driving means 3, 5 may be the same, and different parts of the air flow generated may be guided/driven to form the main and lateral air flows.
  • the main air driving means comprises an outlet grille 11, which is elongate and extends across the top of the opening, and uses this outlet grille 11 to produce an airstream which is substantially planar, and substantially parallel to the doorway 2, i.e. vertical in the present embodiment.
  • the lateral air driving means 5 forms the lateral airstream by making use of a plurality of adjustable vanes which are arranged across the outlet of the lateral air driving means 5 in a direction transverse to the plane of the airstream.
  • the adjustable vanes are shown more clearly in Figure 4 . In Figure 4 , it can be seen that four vanes 12, 13, 14, and 15 are provided. These vanes are angled differently to one another. A divergent airstream is provided, rather than the planar airstream of the main air driving means 3.
  • the gap g between the main air-curtain 4 and the wall 7 of the building can be closed, as different parts of the lateral air-stream flow in slightly different directions from the top of the doorway 2 to the bottom of the doorway 2, but also towards the sides of the doorway 2.
  • the airstream between one part of the body 17 of the lateral air driving means 5 and the first vane 12 is directed almost parallel to the main air-curtain 4 to extend to the floor.
  • the airstream between the first and second vanes 12 and 13 is angled more, so as to extend to a lower part of the wall 7 surrounding the doorway 2.
  • the airstream between the second and third vanes 13 and 14 is angled more, so as to extend to a part midway up the wall 7 surrounding the doorway 2.
  • the airstream emanating from between the third and fourth vanes 14 and 15 is angled yet more, so as to be directed to an upper part of the wall 7, while the airstream emanating from between the fourth vane and the adjacent part of the lateral air driving means 15 and 16 is angled yet further so as to be directed at an uppermost area of the wall 7 surrounding the doorway 2.
  • the divergent air flow from the lateral air driving means 5 forms a wall of moving air that substantially fills the gap between the air-curtain device 1 and wall 7 surrounding the doorway 2.
  • a lateral air driving means 5 is provided at each end of the elongate air-curtain device 1. Both lateral air driving means 5 function in the same way as described above. Although four vanes have been shown, it will be apparent that any number of vanes as appropriate for the particular gap g and height of doorway 2 can be employed to provide the boundary lateral air-curtain.
  • FIG. 5 shows an alternative embodiment according to the invention.
  • the vanes of the lateral air driving means have been changed; the rest of the device is as described above.
  • a single outlet grille is provided in the lateral air driving means.
  • This outlet grille is angled relative to the grille of the main air driving means; specifically, while providing an air-curtain generally downwards, it is angled towards the wall surrounding the doorway.
  • the airstream from the lateral air driving means is angled to the main airstream, and provides a lateral air curtain which at least partially closes the gap between the air-curtain device and the wall surrounding the opening, while having the advantage over the vanes of the first embodiment of being simpler to configure and install.
  • the lateral air driving means is relatively short in extent, compared with the main air driving means, which extends substantially, if not completely, across the top of the opening.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Air-Flow Control Members (AREA)

Claims (9)

  1. Dispositif de rideau d'air (1) pour fournir un rideau d'air d'en haut vers le bas d'une ouverture (2), le dispositif comprenant :
    un moyen d'entraînement d'air principal (3) pour produire un courant d'air principal, en général verticalement à travers l'ouverture (2) afin de former un rideau d'air principal (4) à travers l'ouverture (2) ; et
    au moins une paire de moyens d'entraînement d'air latéraux (5), les moyens d'entraînement d'air latéraux (5) étant positionnées au niveau ou près d'une extrémité respective du moyen d'entraînement d'air principal, chacun étant destiné à produire un courant d'air de rideau d'air latéral (6), généralement vers le bas et incliné par rapport au courant d'air provenant du moyen d'entraînement d'air principal (3) afin de former un rideau d'air latéral (6) au niveau d'un côté de l'ouverture (2) ;
    dans lequel le courant d'air latéral est en service incliné en partie vers un pourtour de l'ouverture (2) ;
    caractérisé en ce que :
    les moyens d'entraînement d'air latéraux (5) sont configurés pour entraîner l'air à plus d'un angle par rapport au courant d'air du moyen d'entraînement d'air principal (3), afin d'émettre un courant d'air divergent.
  2. Dispositif de rideau d'air (1) selon la revendication 1, dans lequel les moyens d'entraînement d'air principal et latéraux (3) (5) comprennent chacun au moins un ventilateur soufflant.
  3. Dispositif de rideau d'air (1) selon la revendication 1, dans lequel les moyens d'entraînement d'air principal et latéraux (3) (5) comprennent au moins un ventilateur soufflant commun pour les deux moyens.
  4. Dispositif de rideau d'air (1) selon la revendication 1, dans lequel le moyen d'entraînement d'air principal (3) est configuré pour produire un courant d'air principal s'étendant complètement à travers l'ouverture (2).
  5. Dispositif de rideau d'air (1) selon l'une quelconque des revendications précédentes, dans lequel le courant d'air principal est sensiblement plan.
  6. Dispositif de rideau d'air (1) selon la revendication 5, dans lequel le courant d'air principal est en service sensiblement parallèle à l'ouverture (2).
  7. Dispositif de rideau d'air (1) selon l'une quelconque des revendications précédentes, dans lequel le courant d'air latéral fournit en service un rideau d'air (6) s'étendant du rideau d'air principal (4) vers un pourtour de l'ouverture (2).
  8. Dispositif de rideau d'air (1) selon l'une quelconque des revendications précédentes, dans lequel le moyen d'entraînement d'air principal (3) est allongé.
  9. Dispositif de rideau d'air (1) selon l'une quelconque des revendications précédentes, dans lequel les moyens d'entraînement d'air latéraux (5) comprennent plusieurs aubes de direction d'air ajustables (12) (13) (14) (15).
EP15152890.8A 2014-01-31 2015-01-28 Dispositif de rideaux Active EP2902719B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1401702.4A GB2522666B (en) 2014-01-31 2014-01-31 Air-curtain device

Publications (2)

Publication Number Publication Date
EP2902719A1 EP2902719A1 (fr) 2015-08-05
EP2902719B1 true EP2902719B1 (fr) 2020-08-05

Family

ID=50344208

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15152890.8A Active EP2902719B1 (fr) 2014-01-31 2015-01-28 Dispositif de rideaux

Country Status (5)

Country Link
US (1) US20150241075A1 (fr)
EP (1) EP2902719B1 (fr)
CA (1) CA2880363C (fr)
ES (1) ES2828964T3 (fr)
GB (1) GB2522666B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109208944A (zh) * 2018-09-13 2019-01-15 王勤梅 一种快速反应的洁净房

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007097618A1 (fr) * 2006-02-21 2007-08-30 Biddle B.V. Grille d'extraction et dispositif de rideau d'air

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1154252A (en) * 1915-07-28 1915-09-21 Absalom M Kennedy Range-finder.
GB872601A (en) * 1957-06-08 1961-07-12 Rudolph Sterkel Improvements in or relating to air curtains
CA654457A (en) * 1957-06-08 1962-12-18 Rudolf Sterkel Air curtains
NL110220C (fr) * 1958-10-14 1900-01-01
US3523937A (en) * 1967-11-06 1970-08-11 Hyman I Biegeleisen Phlorizin analogues and their use
US4590847A (en) * 1982-12-29 1986-05-27 Hull Francis R Supply make-up air attachment for exhaust booths
DE3523937A1 (de) * 1985-07-04 1987-01-08 Dieter R Tiepoldt Torluftschleieranlage
US6874331B2 (en) * 2002-05-17 2005-04-05 Manitowoc Foodservice Companies, Inc. Device and method for creating a horizontal air curtain for a cooler
US20070298703A1 (en) * 2006-06-23 2007-12-27 Chih-Feng Chen Insect proof wind generating device
PL387085A1 (pl) * 2009-01-21 2010-08-02 Flowair Głogowski I Brzeziński Spółka Jawna Kurtyna powietrzna ze strumieniem pomocniczym
NL2003616C2 (nl) * 2009-10-09 2011-04-12 Biddle B V Luchtgordijninrichting en werkwijze voor het realiseren van een horizontaal luchtgordijn met additionele luchtstroom.
ITVI20110053A1 (it) * 2011-03-15 2012-09-16 Bertoldo F Lli S N C Porta automatica a scorrimento laterale
NL2011007C2 (en) * 2013-06-19 2014-12-22 Biddle B V Air curtain device for realising an air curtain with a substantial vertical air flow and method there for.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007097618A1 (fr) * 2006-02-21 2007-08-30 Biddle B.V. Grille d'extraction et dispositif de rideau d'air

Also Published As

Publication number Publication date
GB2522666B (en) 2019-09-25
GB201401702D0 (en) 2014-03-19
US20150241075A1 (en) 2015-08-27
CA2880363C (fr) 2022-11-01
EP2902719A1 (fr) 2015-08-05
CA2880363A1 (fr) 2015-07-31
ES2828964T3 (es) 2021-05-28
GB2522666A (en) 2015-08-05

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