EP0866286A2 - Sortie d'air avec un jet élargie - Google Patents

Sortie d'air avec un jet élargie Download PDF

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Publication number
EP0866286A2
EP0866286A2 EP98104770A EP98104770A EP0866286A2 EP 0866286 A2 EP0866286 A2 EP 0866286A2 EP 98104770 A EP98104770 A EP 98104770A EP 98104770 A EP98104770 A EP 98104770A EP 0866286 A2 EP0866286 A2 EP 0866286A2
Authority
EP
European Patent Office
Prior art keywords
air
air outlet
outlet according
air deflection
lamella
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Withdrawn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
EP98104770A
Other languages
German (de)
English (en)
Other versions
EP0866286A3 (fr
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.)
Ttl Tuer and Torluftschleier Lufttechnische Gerate GmbH
Original Assignee
Ttl Tuer and Torluftschleier Lufttechnische Gerate GmbH
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 Ttl Tuer and Torluftschleier Lufttechnische Gerate GmbH filed Critical Ttl Tuer and Torluftschleier Lufttechnische Gerate GmbH
Publication of EP0866286A2 publication Critical patent/EP0866286A2/fr
Publication of EP0866286A3 publication Critical patent/EP0866286A3/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F24F13/075—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser having parallel rods or lamellae directing the outflow, e.g. the rods or lamellae being individually adjustable

Definitions

  • Ventilation systems e.g. Air curtain systems
  • air curtain systems this is supposed to be achieved be that the air jet always near the ground has enough speed to get the one you want To achieve shielding effect.
  • a wider range the air jet is only conditional with a larger one To achieve pressure on the upstream side of the air outlet. Due to turbulence in the supply lines and on the deflection devices the effective flow cross-section decreases, i.e. there is a throttling effect, which Air outlet speed and / or the amount of air reduced.
  • the inventor has found a source for such air vortex is the gap that exists between the frame of the air outlet and the back of that slat is closest to the edge of the frame opening is.
  • sealants are therefore also available, with the help of the back of the outer air deflection slat is sealed against the frame opening. Regardless of the setting of the outer air deflection slat there are no air currents on the back of the air deflection slat emerge more from the air outlet. Thereby become air vortices emerging laterally with the air jet prevents a correspondingly greater range can be achieved.
  • the sealant can be the hinge with which the outer air deflection lamella in the Frame is pivotally mounted.
  • the sealant may also include a rib attached to it the rear of the outer air deflection blade is arranged.
  • This rib expediently acts with one on the side the opening located together, so that between the rib and the wall formed an extremely small gap will no longer cause any harmful turbulence leaves.
  • This rib can preferably be part of the hinge be.
  • the air deflection slat can be made from one Create section of an extruded profile and also can be easily cut into the exposed one after cutting and side-accessible bore from both ends of the Air deflecting blades are screwed in that the Form hinge axis.
  • a further increase in the air outlet throw can be achieved if the outer air deflector on its upstream edge with a curved Air guide surface is provided, the axis of curvature or in the case of non-cylindrical curvature, the family of axes of curvature lie on the back of the air deflection slat.
  • a funnel-shaped expansion is achieved, the Vortex formation on the leading edge of the air deflection lamella when discharging the air flow from the air supply duct avoids.
  • the jet of air coming from such an air outlet emerges, shows a largely laminar flow, also the inside of the air jet of air vortices is practically free.
  • the outer air deflection plate expediently from the above described curved area and one itself adjoining flat area together.
  • the air deflection slat has the shape a plate that is independent of the existing curvatures is approximately the same thickness at all points.
  • Air deflection lamellae create air outlet openings.
  • These inner air deflection blades are also in the Frame pivoted and can be used with a Adjustment device synchronized with the outer air control slats can be set at an angle.
  • the ogival course directly in the semicircular course of the leading edge can pass over or between these two structures extend an area in which the air deflection blade is constant Has thickness.
  • a very inexpensive manufacture can be reach when the air deflection blades each have sections of appropriately contoured extruded profiles.
  • Fig. 1 shows a view of the upstream side Air outlet 1 in a broken perspective Presentation.
  • the air outlet 1 is in one Bottom 2 of a housing 3 of a ventilation device, for example a door or gate air curtain.
  • the bottom 2 also forms the frame of the air outlet 1, which has a rectangular opening 4.
  • the rectangular opening 4 is made of two parallel to each other long pages 5 and 6 as well as two at right angles to it short sides limited, of which because of the broken representation only the short page 7 in the figure is recognizable.
  • outlet 1 includes two in parallel Air deflecting blades 8a and 8b running at a distance from one another.
  • the wall 9 extends counter to the direction of flow.
  • the two short sides are also like this with the short page 7 is recognizable, with an upward rising Wall 12 provided, which starts from the floor 2 and ends in the two walls 9 and 11. All Walls 9, 11, 12 and the wall of the unrecognizable short The sides have the same height, measured from the bottom 2.
  • the two slats 8a and 8b have the same shape, which is why the description of the structure of the slats 8a and 8b applies mutatis mutandis to both slats 8a and 8b.
  • Each air deflection blade 8 has a front side 13 and a back 14 on.
  • the front 13 is the opposite Air deflection blade 8 facing while the Back towards the neighboring wall 9 or 11 on the long side 5 or 6 points.
  • the front and the Backs 13, 14 have about the height of each air baffle 8 the same distance from each other.
  • the air deflection blades 8 from one in Fig. 1 recognizable trailing edge 15 and one to it parallel leading edge 16 and two side edges 17 and 18 limited, which are adjacent to the short sides 12.
  • the Trailing edge 15 does not project downward from that of the Opening 4 defined level above, whereby the air outlet 1 low induction.
  • each air deflection blade 8 forms at the same time the air surface, which is mentally in two areas one area 19 and one area 21, can be disassembled. These two areas 19 and 21 meet a dashed line 22 together, and in such a way that there is a jump-free in the technical sense results in a smooth air baffle.
  • the area 19 is over the Length of the air deflection blade 8 smooth and even, during the Area 21 is the outer surface of a quarter cylinder.
  • the The axis of curvature of this imaginary cylinder is parallel to the trailing edge 15 on the back 14 of the lamella 8, so that the two cylindrically curved regions 21 of the two air deflection blades 8a and 8b an inlet funnel form.
  • the radius of curvature of the cylindrically curved Area 21 is larger than 7 mm, preferably larger than 10 mm.
  • a particularly good compromise between height and Effectiveness in terms of avoiding eddies within the air jet is 15 mm.
  • the height of the level Section 19, measured as the distance between the trailing edge 15 and the straight line 22 is 40 mm and should be in in any case be larger than 20 mm to be effective Get beam alignment. Narrow widths for the flat area 13 lead to a deterioration of the Directionality of the outlet 4.
  • the distance is the front 13 to the back 14 the same in all places, so it's kind of a plate that is near the Leading edge 16 is bent in a quarter circle.
  • each air deflection blade 8 Located on the rear 14 of each air deflection blade 8 a rib 23 and a rib 24. These two Ribs 23 and 24 run the length of the air deflection blade 8 through and they are integrally formed on the back 14.
  • the rib 23 runs parallel and at a distance to the trailing edge 15, while the rib 24 is parallel and extends just below the straight line 22 at which the the two areas 19 and 21 merge into one another.
  • the cross-sectional shape of the two ribs 23 and 24 is the same and designed so that the back 14 distal end of the cross section the shape of a semicircle Has.
  • the rib 23 is approximately halfway Height of walls 9, 11, 12.
  • a through bore 25 and a slot 26 which of the apex line of the rib 23 radially into the continuous Hole 25 opens out.
  • the rib 24 has a bore 27 running through its length and a slot 28, which is also from the apex of the Rib 24 goes out and at its inner end in the Hole 27 opens out.
  • the longitudinal axes of the bores 25, 27 are concentric to the center of curvature of the semicircular Part of the rib cross section.
  • the two air deflection blades are 8 pivotable in the opening 4.
  • the rib 23 belongs. With the bore 25 contained therein aligned holes in the wall 12 of the two short sides (They are not due to the way of illustration in the figures recognizable), through which a screw 31 into the Through hole 25 is screwed.
  • the location of this Bore 25 in the wall 12 is chosen so that the rib 23 delimits an extremely small gap with the wall 11, as can also be seen in FIG. 2.
  • the two air deflection blades 8a and 8b are on at least one end, preferably at both ends a cross-sectionally rectangular coupling rod 32 with each other connected.
  • the coupling rod 32 contains two bores, the distance between them is the distance between the holes 25 of the two air deflection blades corresponds to 8a and 8b.
  • the air outlet shown in Fig. 1 allows by pivoting the air deflection blades 8a and 8b, e.g. from the position shown in FIG. 1 to that in FIG. 2 shown position that the emerging air jet a different angle to the bottom of the bottom 2 Has.
  • the rib in question lies in each swivel position 23 on the adjacent wall 9 or 11 either on or limits with this an extremely small gap, whereby is prevented that when the air outlet 1 with air is applied, air between the back 14 and the relevant long side 5 or 6 of the opening 4 emerges. If air were to escape at this point, it would be because of the sharp edges very swirled.
  • Fig. 3 shows a low-induction air outlet 1, which is suitable for wider air jets.
  • Be Structure is similar, except for the arrangement of the inner ones Luftlenklamellen 33, the structure of the air outlet 1 in the 1 and 2, which is why recurring structures and components provided with the same reference numerals and not are described again.
  • Each inner air deflection fin 33 has a leading edge 34 and a trailing edge 35, which is not down protrudes beyond the level defined by the opening.
  • the intermediate cross-section has approximately the shape of a Hull, i.e. is in the region of the leading edge 34 the inner air deflection fin 33 with a semicircular provided convex surface.
  • This semicircular convex The surface goes into two mutually parallel side edges 36 and 37 over that at about 38 at the downstream end Kind of a pointed arch to the trailing edge 35 one on top of the other approach. This gives the trailing edge 35 a Cutting edge shape, while the leading edge 34 is semicircular is curved.
  • the inner air deflection blades 33 consist of a Solid material, the at least two in the longitudinal direction Contains channels or holes 39 and 41. Of the Distance between the holes 39 and 41 corresponds to that Center distance of the two ribs 23 and 24. In addition to The channels or bores 39 and 41 can be further bores 42 may be included to save material.
  • the inner air deflection blades 33 contains the wall 12 or the wall parallel to it further holes that lie on a straight line that through the center of the holes to support the two outer Air deflection blades 8a and 8b is defined. From the outside or Back of the wall 12 are then through the holes for the inner air deflection blades 33 screws, similar to the Screws 31, screwed into the holes 39. So about that the inner air deflection blades 33 together with the outer air deflection blades 8 can be adjusted, are in the correspondingly extended coupling rod 32 also holes for the channels or holes 41 of the inner air deflection blades 33 attached. By more Screws are the inner air deflection blades 33 with the coupling rod 32 connected.
  • the coupling rod 32 an operating lever 44 may be attached.
  • Air deflection blades 8a and 8b carried out in the same way and are hinged, with this air outlet 1 achieves the same advantages as with the air outlet 1 according to FIGS. 1 and 2.
  • a leak air at the back of the outer air deflection blades 8a and 8b is also avoided like a vortex formation when the air flows in between the air deflection blades 8a and 8b.
  • the new air outlet 1 are both the outer air deflection blades 8 as well as the inner air deflection blades 33 in the Near their trailing edge 15 and 35 pivotally mounted.
  • This type of storage has the advantage that no additional Space must be created around the slats, which is different depending on the position the outer air deflection blades 8 are brought.
  • FIG. 5 shows, it is also possible upper rib 24 for hinging the outer air deflection slats 8, while on the lower rib 23 the coupling rod 32 is attached.
  • the Walls 9 and 11 which are correspondingly wider, inside in the opening 4 projecting ledges 47 are provided then together with the upper rib 24 the desired one Seal for the rear 14 of the air deflection blades 8a and 8b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
EP98104770A 1997-03-17 1998-03-17 Sortie d'air avec un jet élargie Withdrawn EP0866286A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19710779 1997-03-17
DE1997110779 DE19710779C2 (de) 1997-03-17 1997-03-17 Luftauslaß für Luftstrahlen mit großer Reichweite

Publications (2)

Publication Number Publication Date
EP0866286A2 true EP0866286A2 (fr) 1998-09-23
EP0866286A3 EP0866286A3 (fr) 2000-05-31

Family

ID=7823474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98104770A Withdrawn EP0866286A3 (fr) 1997-03-17 1998-03-17 Sortie d'air avec un jet élargie

Country Status (2)

Country Link
EP (1) EP0866286A3 (fr)
DE (1) DE19710779C2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006027320A1 (de) * 2006-06-13 2007-12-20 Gea Happel Klimatechnik Produktions- Und Servicegesellschaft Mbh Auslass eines Gebläsekonvektors
DE102008042803C5 (de) 2008-10-13 2018-01-11 LGB Lufttechnische Anlagen und Gerätebau GmbH Vorrichtung zur Führung eines Luftstromes

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH324384A (de) * 1953-11-03 1957-09-15 Sifrag Spezialapparatebau & In Einrichtung zur Erzeugung eines raumabschliessenden Luftvorhanges
NL110220C (fr) * 1958-10-14 1900-01-01
DE1195455B (de) * 1959-05-13 1965-06-24 Sulzer Ag Einrichtung zur Regelung einer Luftschleieranlage
US3797373A (en) * 1972-07-19 1974-03-19 Npi Corp Air curtain
AU6930074A (en) * 1973-05-24 1975-11-27 Conditionaire Engineering Pty Air curtains
DE8630289U1 (fr) * 1986-11-12 1989-06-22 Happel Gmbh & Co, 4690 Herne, De
FR2624641A1 (fr) * 1987-12-09 1989-06-16 Serva Soc Dispositif d'attenuation de la propagation des sons, pour bouches d'entree d'air
DE9407112U1 (de) * 1994-04-29 1994-09-01 Teddington Controls Gmbh Kompakt-Luftschleieranlage
DE4431314C2 (de) * 1994-09-02 1998-07-02 Ttl Tuer & Torluftschleier Luf Luftauslaß

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
EP0866286A3 (fr) 2000-05-31
DE19710779C2 (de) 2001-01-25
DE19710779A1 (de) 1998-10-08

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