EP2816294A2 - Agencement de gril - Google Patents

Agencement de gril Download PDF

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Publication number
EP2816294A2
EP2816294A2 EP14172105.0A EP14172105A EP2816294A2 EP 2816294 A2 EP2816294 A2 EP 2816294A2 EP 14172105 A EP14172105 A EP 14172105A EP 2816294 A2 EP2816294 A2 EP 2816294A2
Authority
EP
European Patent Office
Prior art keywords
vanes
arrangement
grill
arrangement according
grill arrangement
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.)
Withdrawn
Application number
EP14172105.0A
Other languages
German (de)
English (en)
Other versions
EP2816294A3 (fr
Inventor
Zsolt Bako-Biro
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.)
VKR Holding AS
Original Assignee
VKR Holding AS
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 VKR Holding AS filed Critical VKR Holding AS
Publication of EP2816294A2 publication Critical patent/EP2816294A2/fr
Publication of EP2816294A3 publication Critical patent/EP2816294A3/fr
Withdrawn legal-status Critical Current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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/081—Air-flow control members, e.g. louvres, grilles, flaps or guide plates for guiding air around a curve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • 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
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/082—Grilles, registers or guards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/02—Roof ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F2007/004—Natural ventilation using convection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/28—Details or features not otherwise provided for using the Coanda effect

Definitions

  • This arrangement concerns a grill arrangement for a natural ventilation system.
  • a grill arrangement for a natural ventilation system the arrangement include a support structure locatable in an opening in a surface, and a plurality of spaced vanes mounted to the support structure, which vanes are curved to urge a flow of air entering the grill arrangement from outside of the surface to be turned towards a direction extending parallel to the surface.
  • the grill arrangement may be configured such that air passing through the grill arrangement from outside of the surface will substantially follow the profile of the surface by virtue of the Coanda effect.
  • the vanes may be curved from a direction perpendicular to the surface through an angle of between 80 and 65°, and in particular between 80 and 70°.
  • the vanes may include an arcuate part, and the spacing between the arcuate parts on adjacent vanes may correspond at least generally to the radius of the arcuate parts.
  • the vanes may also include a substantially tangential part at the downstream end of the arcuate parts.
  • the arcuate parts may extend from four up to fifteen times the length of the tangential part.
  • the tangential parts may be configured such that the space between adjacent vanes reduces at the tangential parts, and the space may reduce by an amount less than 40%.
  • the radius of the arcuate parts of the vanes is typically kept unchanged across the arrangement.
  • the spacing between vanes at an upstream end thereof may be between 100 and 35mm, and particularly between 75 and 40mm.
  • the spacing between vanes may be constant at least for the arcuate parts thereof.
  • the vanes may be configured such that there is substantially no line of sight through the arrangement.
  • the vanes may be located further in a downstream direction at a first part of the arrangement relative to a second part of the arrangement.
  • a line extending between downstream ends of the vanes in the first part of the arrangement to the second part of the arrangement may be inclined at an angle to the horizontal of between 5 and 15°, particularly 8 and 12°, and more particularly at an angle of substantially 10°.
  • the first part of the arrangement may be towards the middle of the arrangement.
  • the arrangement may also include a central section, which in one embodiment includes a section which provides direct substantially straight ventilation therethrough.
  • the central section is closed, and may include an upstream pointing projection to direct air around the central section, which projection may be in the form of a four sided pyramid.
  • the arrangement includes one set of vanes extending from one side which constitutes the first part, to an opposite side which constitutes the second part.
  • two sets of vanes are provided each extending from opposite sides of an apex, which apex constitutes the first part.
  • a third embodiment four sets of vanes are provided each extending to a respective side from an at least generally central first part.
  • the invention further provides a natural ventilation arrangement, the arrangement including a grill arrangement according to any of the preceding fifteen paragraphs
  • Figs. 1 and 2 show a first grill arrangement 10 suitable for use in a natural ventilation system.
  • the arrangement 10 is square in plan view and comprises four sections 12 each comprising six vanes 14 as shown in Fig. 2 .
  • the vanes 14 curve outwardly and have a first arcuate portion 16 and an outer tangential portion 18.
  • the vanes 14 are located sequentially downwardly towards the centre 20 of the arrangement 10.
  • the vanes 14 in the arcuate portion 16 are equispaced from each other and for instance have a spacing of 50mm.
  • the gap between the vanes reduces in size with the tangential portions 18, causing air to be accelerated therethrough.
  • the angle of a line connecting the top of the arcuate portions relative to the horizontal is 10°.
  • FIGs. 3 and 4 show a second grill arrangement 22 which is similar to the arrangement 10 but only includes two sections 24 which are divided by a central apex 26. Each of the sections 24 again includes vanes 14 potentially producing an air flow in two directions as shown by the arrows 28.
  • Figs. 5 and 6 show a third grill arrangement 30 with just a single section with twelve vanes 32.
  • the vanes are curved to the left as shown, and also are mounted on a line inclined upwardly at 10° to the horizontal tos at the left hand side. This causes air to flow in a single direction as shown by the arrows 34.
  • Fig. 7 shows a natural ventilation arrangement 36 incorporating a fourth grill arrangement 38.
  • the natural ventilation arrangement 36 is mounted on the roof of a building with a hollow cylindrical or square section body 42 which extends through the roof 40, and has a plurality of adjustable paddles 44 at a lower end thereof immediately above the grill arrangement 38 to adjust air flow therethrough.
  • a cruciform divider 46 is provided within the body 40, and a plurality of louvres 48 are provided in an upper part of the body 40 to permit air to pass into or out of the body 42.
  • air will pass into one or two of the portions formed by the cruciform 46 within the body 40 as shown by the arrow 50. Air will be caused to exit from the opposite one or two portions formed by the cruciform 46 within the body 40, as shown by the arrow 52.
  • FIG. 8 illustrates the passage of air into and out of a similar grill arrangement 56, but has a smaller number of vanes 58.
  • Fig. 9 illustrates air flow through the third grill arrangement 30 which just has a single section of vanes 32. As can be seen air entering through a gap in a wall 60 is turned to the left so as to tend to follow the underside of the wall 60 by virtue of the coanda effect.
  • Fig. 10 shows in more detail four vanes 62 in a grill arrangement according to the arrangement.
  • Each of the vanes has an arcuate section 64 which has a radius approximately equal to the spacing between adjacent vanes 62.
  • Each of the vanes 62 also has a tangential section 66 at their downstream ends, such that the spacing between the vanes 62 at their lower ends decreases causing accelleration of air passing therethrough.
  • the vanes 62 are sequentially spaced downwardly towards a first part which may be a central part of a grill arrangement such as shown in the grill arrangements 10 and 22.
  • Lines illustrate the angle 68 by which the vanes 62 are spaced upwardly from the first part.
  • the spacing between the vanes 62 is 50mm and hence the radius of the arcuate part 64 is also 50mm.
  • the angle 68 is 10°.
  • Figs. 12 and 13 shows a fifth grill arrangement 70 which could be suitable for instance with a natural ventilator which has a hybrid arrangement, including for example a central fan which may be solar operated, and operable as required, and particularly where there is not sufficient wind to produce natural ventilation.
  • a natural ventilator which has a hybrid arrangement, including for example a central fan which may be solar operated, and operable as required, and particularly where there is not sufficient wind to produce natural ventilation.
  • the fifth grill arrangement 70 is generally similar to the first grill arrangement 10 except that a central section 72 is provided without any vanes, which permits direct vertical ventilation and will connect to for instance the solar powered fan. Illustrated by broken lines are modular extensions 74 on all four sides of the grill arrangement 70, for use in a location where a larger grill arrangement is required.
  • thermal jets may be cooler than the ambient temperature, and this arrangement will provide a longer time for thermal jets to be heated up by their surroundings.
  • vanes may have a different profile, and a different number or spacing of vanes may be used.
  • the angle of the vanes relative to a horizontal alignment can be varied.
  • Different configurations and vanes and/or other grill parts can be provided.
  • the grill arrangement may have a number of different shapes such as square, rectangular or circular, with correspondingly shaped vane configurations.
EP14172105.0A 2013-06-18 2014-06-12 Agencement de gril Withdrawn EP2816294A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1310814.7A GB2511148B (en) 2013-06-18 2013-06-18 Grill arrangement

Publications (2)

Publication Number Publication Date
EP2816294A2 true EP2816294A2 (fr) 2014-12-24
EP2816294A3 EP2816294A3 (fr) 2015-07-22

Family

ID=48914723

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14172105.0A Withdrawn EP2816294A3 (fr) 2013-06-18 2014-06-12 Agencement de gril

Country Status (2)

Country Link
EP (1) EP2816294A3 (fr)
GB (1) GB2511148B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110325799A (zh) * 2017-02-22 2019-10-11 艾尔马斯特有限公司 通风装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021107793A1 (fr) * 2019-11-27 2021-06-03 Jerzy Hawranek Amplificateur de ventilation hybride

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US2735352A (en) * 1956-02-21 Demuth
US2240617A (en) * 1939-02-08 1941-05-06 Air Devices Inc Air distributor
US3110242A (en) * 1953-09-21 1963-11-12 Cortland N O'day Removable core air diffusers
US2977869A (en) * 1953-09-21 1961-04-04 Cortland N O'day Removable core air diffusers
US3391629A (en) * 1966-07-18 1968-07-09 Us Register Company Reversible floor mounted register
DE7820323U1 (de) * 1978-07-06 1978-10-19 Gebrueder Trox Gmbh, 4133 Neukirchen- Vluyn Deckenluftauslass fuer klimaanlagen
US4665806A (en) * 1985-09-12 1987-05-19 Martin Sr Lendell Ventilating air distributor
GB2221530B (en) * 1988-08-02 1992-04-15 Hunter International Plc Improvements in or relating to an air diffuser
US5338256A (en) * 1991-12-31 1994-08-16 Anthony Tonna Ventilator
US5261857A (en) * 1992-06-23 1993-11-16 Bart Petterson Ceiling vent with movable vane
GB2273348B (en) * 1992-12-03 1997-05-14 Hunter Technical Dev Ltd Heating,ventilating and air-conditioning systems
JP3533585B2 (ja) * 1995-03-08 2004-05-31 オーケー器材株式会社 汚染防止型吹出口
US6010402A (en) * 1997-09-15 2000-01-04 E.H. Price Limited Air diffusers and deflector structure therefor
GB2362707A (en) * 2000-05-25 2001-11-28 Zetaflow Ltd A ventilation diffuser unit
US20090130970A1 (en) * 2007-11-21 2009-05-21 Corey Scott Jacak Exhaust fan and method of operating the same
SE533713C2 (sv) * 2009-04-06 2010-12-07 Inventiair Ab Tilluftsdon
JP5456402B2 (ja) * 2009-07-27 2014-03-26 三洋電機株式会社 天井埋込型空気調和装置
CN201819361U (zh) * 2010-08-11 2011-05-04 宁波翔博机械有限公司 一种空调通风口
CN201811398U (zh) * 2010-08-11 2011-04-27 宁波翔博机械有限公司 一种弧面叶片空调通风口

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110325799A (zh) * 2017-02-22 2019-10-11 艾尔马斯特有限公司 通风装置
CN110325799B (zh) * 2017-02-22 2021-05-11 艾尔马斯特有限公司 通风装置

Also Published As

Publication number Publication date
GB201310814D0 (en) 2013-07-31
GB2511148A (en) 2014-08-27
EP2816294A3 (fr) 2015-07-22
GB2511148B (en) 2017-11-15

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