EP0269923A2 - Sortie d'air - Google Patents

Sortie d'air Download PDF

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Publication number
EP0269923A2
EP0269923A2 EP87116641A EP87116641A EP0269923A2 EP 0269923 A2 EP0269923 A2 EP 0269923A2 EP 87116641 A EP87116641 A EP 87116641A EP 87116641 A EP87116641 A EP 87116641A EP 0269923 A2 EP0269923 A2 EP 0269923A2
Authority
EP
European Patent Office
Prior art keywords
air outlet
outlet pipe
displacement air
outlet
end plate
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.)
Granted
Application number
EP87116641A
Other languages
German (de)
English (en)
Other versions
EP0269923A3 (en
EP0269923B1 (fr
Inventor
Rüdiger Dr. Dipl.-Ing. Detzer
Eberhard Dipl.-Ing. Jungbäck
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.)
HumanAir Patentverwertungsgesellschaft mbH
Original Assignee
Kessler and Luch 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 Kessler and Luch GmbH filed Critical Kessler and Luch GmbH
Priority to AT87116641T priority Critical patent/ATE80937T1/de
Publication of EP0269923A2 publication Critical patent/EP0269923A2/fr
Publication of EP0269923A3 publication Critical patent/EP0269923A3/de
Application granted granted Critical
Publication of EP0269923B1 publication Critical patent/EP0269923B1/fr
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
    • 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
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/12—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of sliding members
    • 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
    • F24F13/068—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as perforated walls, ceilings or floors

Definitions

  • the innovation concerns a source air outlet for the ventilation of halls and halls, especially industrial halls.
  • the outlet impulses must be set separately for each air outlet, both in terms of size and direction, and this setting is furthermore dependent on the temperature difference of the inlet air blown in and on the sensitivity of the outlet depending on the blowing area or the machines and tools arranged there.
  • displacement air outlets were created in which the supply air emerges "swelling" over the entire circumference and the entire length of the outlet pipe provided with openings, so that an essential flow impulse is introduced.
  • the air rises quickly due to its lower density when there is a positive temperature difference (heating), while it quickly drops downwards when there is a negative temperature difference (cooling).
  • the desired success of ventilation in the hall or hall does not occur.
  • the outlet speed of the air is increased so that both a mixture of the supply air with the room air and a room air flow are started by induction.
  • the room air flow that is established is essentially determined by the impulse introduced with the supply air; some areas of the room to be ventilated can be too well flowed, others too bad. The former leads to unpleasant drafts, the latter to a constant deterioration in air.
  • a supply air box which can be connected to a supply air system is provided with at least one horizontally oriented connecting piece which opens into one of the ends of an outlet pipe formed from a jacket provided with openings, the other end of which is closed by an end plate, and that the outlet pipe is provided with a part of its circumference and covering the entire length of the opening-provided part of the outlet pipe adjusting slide, the adjusting slide being rotatably attached to the outlet pipe about the axis of the outlet pipe.
  • This design provides a source air outlet which has an increased flow velocity in the free area due to the covered area.
  • the flow impulse formed from the product of mass flow and exit velocity can thus be adjusted, because the mass flow rate is reduced by the slide, while the flow rate cannot rise above a limit given by the admission pressure. While the amount of the flow impulse is given by the central angle covered by the adjustment slide, the direction of the flow impulse is thereby adjustable and thus adaptable to the needs that the adjustment slide can be rotated about the axis of the outlet pipe. In this way, the conditions prevailing in the case of cooling or heating can be adjusted in such a way that the flow pulse can be changed as a directional variable without changing the amount of the flow pulse.
  • the restriction of the outlet area also results in an improved inflow possibility for the room air sucked in by induction, which leads to an improvement in the mixing behavior of this air outlet.
  • the number of outlet pipes is given by the geometry of the hall or hall; a number of air outlet pipes can be connected to an air box. However, it is advantageous to limit the number of outlet pipes of each of the outlet boxes to two or three.
  • the amount and direction of the flow impulse can be adjusted in a particularly simple manner in that the adjusting slide is formed from two partial slides comprising at most 180 ° of the circumference of the jacket of the outlet pipe is mutually adjustable, fixable with each other and fixed together rotatable about the axis of the outlet pipe.
  • This configuration of the adjusting slide allows the air conditioning system to be adjusted when it is retracted in a simple manner by bringing the circumferential angle of the adjusting slide which gives the amount of the flow impulse to the most favorable value during retraction and fixing both adjusting slides in this position with one another.
  • the adjusting slides fixed in this way can be rotated together about the axis of the outlet pipe, so that the direction of the flow impulse can still be set at a constant amount.
  • the transition from the connecting piece of the air box to the outlet pipe is a rounded outlet nozzle. It is also advantageous to arrange a swirl sensor in the connecting piece. While the shock loss is reduced by the outlet nozzle and thus the energetic efficiency of the source air outlet is improved, the swirl sensor causes the inlet air to flow into the outlet pipe, superimposed by a swirl flow. This swirl flow continues to the outside and improves the mixing behavior.
  • the arrangement of an additional inner jacket with a plurality of openings and in particular the arrangement of coaxial guide rings, which are also positioned at an angle to a plane normal to the axis of the outlet pipe, improve the outflow behavior, so that targeted "quasi-selective" ventilation be made possible.
  • Individual workplaces can be adapted to different requirements by suitable selection of the direction of the flow impulse.
  • a particularly simple construction is achieved in that the end plate closing the outlet pipe and the one in the loading Rich of the connecting piece provided end ring are connected to each other by means of clamping screws. It is advantageous in this arrangement that the end plate and the end ring each have at least one annular groove arranged outside the casing, the end edges of the adjusting slide (or the partial slide) being mounted in the grooves. Other grooves, for example also for receiving the inner jacket, are also possible.
  • the source air outlet is formed from the end ring and the end plate, in the grooves of which the outer jacket and the adjusting slide or the two slide members, optionally also the inner jacket, engage with their free edges, and the closing ring and the end plate by means of the Tensioning screws are tightened together.
  • the end plate is provided with a conical guide body arranged axially in the outlet pipe, the inner end of which has the smaller diameter and extends at most to the rounding of the outlet nozzle. It is advantageous here to design the axially inserted guide body as a hollow body open on both end faces and to provide the end plate with a central opening. A uniform outflow over the entire length of the outlet pipe is first achieved through the guide body. This is a consequence of the gap narrowing towards the end plate between the outer surface of the conical insert and the jacket of the outlet pipe.
  • the insert premixes the supply air and room air, since the room air is in the area of the outflow nozzle flows at (relatively) high speed and draws in room air through the central tube due to its reduced static pressure. This is particularly favored if a swirl flow is forced by a swirl device arranged in the connecting piece.
  • Fig. 1 shows schematically in a perspective partially sectioned view an air supply box 1 to which an outlet pipe 6 is connected.
  • the supply air box 1 is formed from a supply air chamber, shown cylindrical here, the outer jacket of which has a connecting pipe for connecting the supply air box to the ventilation system.
  • a wall parallel to the end wall is provided with a further connecting piece 1.4 for the outlet pipe 6. It goes without saying that in the cylindrical representation both opposite end walls may have such connecting pieces 1.4.
  • the wall shown, which is parallel to the end wall, is set back from the end face, resulting in a protruding collar 1.5 which can directly connect to the outer diameter of the jacket 6.1 of the outlet pipe 6.
  • the connecting piece 1.4 receives the connecting pipe 2 for the outlet pipe, the outflow end of the connecting piece 2 in the interior of the outlet pipe 6 being designed as an outflow nozzle with a correspondingly rounded mouth 2.1 (FIG. 3).
  • the outlet pipe 6 itself essentially consists of the connection ring 9 facing the supply air box 1 and the end plate 11 provided on the other side, the outer jacket 6.1 provided with a plurality of air outflow openings 6.2 (FIG. 3) running between the end ring 9 and the end plate 11 .
  • This outer jacket 6.1 can be partially covered by means of an adjusting slide 10 extending from the end ring 9 to the end plate 11.
  • This slide valve 10 is pivotable about the axis of the outlet tube 6, so that the desired outflow area can be selected by the setting of this slide valve 10.
  • an inner jacket 5.1 also provided with a plurality of openings 5.2 (FIG. 3) is arranged, which is concentric with the outer jacket 6.1 and is radially spaced therefrom. Between the two coats there are some guide rings 7, which may redirect any existing axial component of the flow into a radial one.
  • the outlet pipe 6 shown also has a conical guide insert 4, the inner end 4.1 of which lies in the region of the outlet nozzle 2.1 (FIG. 3) of the connecting piece 2 for the outlet pipe 6.
  • the outer end of the guide insert 4 is attached to the end plate 11, which serves as a carrier of the guide insert 4.
  • This guide insert ensures a uniform outflow over the axial length.
  • the conical guide insert 4 is used as Hollow body open on both sides and the end plate 11 receives a central opening 11.5 (FIG. 6). With this configuration, room air, sucked in by the negative pressure, of the supply air flowing rapidly in the area of the outlet nozzle 2.1 (FIG. 3) can still be mixed with the supply air within the outlet pipe.
  • Fig. 2 shows the supply air box 1 in a cylindrical version, in which the cylinder axis is perpendicular to the axis of the connecting piece 1.4 for the outlet pipes 6.
  • the supply air chamber 1.1 of the supply air box 1 is closed with an intermediate wall 1.2 and this intermediate wall 1.2 is provided with the connecting piece 1.3 for the supply air system.
  • the connection to the supply air system can be made "invisible" and the projecting collar allows an architecturally favorable connection to the ceiling structure.
  • the connecting pipes 1.4 for the outlet pipes 6 are arranged opposite one another. Other configurations, of course with three at an angle of 120 ° or four crosswise opposite connecting pieces 1.4 are of course possible.
  • the connecting piece 2 carries the connecting pipe 6, which is not further supported on the outside, the force transmission taking place essentially through the closing ring 9.
  • a swirl sensor 3 is provided, which consists of blades 3.2 which are set in the direction of flow and which are fastened to an axially adjustable central body 3.1.
  • the connecting piece 2 is provided within the outlet pipe 6 with a rounded widening 2.1, which is an outlet nozzle.
  • the outlet pipe 6 is essentially formed by the outer jacket 6.1, which is provided with a plurality of openings 6.2 distributed over its surface. The outer end of the outer jacket 6.2 is closed with an end plate 11.
  • a further inner jacket 5.1 is arranged in the interior of the outer jacket 6 and is likewise provided with a multiplicity of openings 5.2 distributed over its surface.
  • the inner jacket 5.1 is coaxial to the outer jacket 6.1 and in the radial distance between the two jackets, the obliquely positioned guide rings 7 are provided, which are only indicated in dashed lines in the selected illustration.
  • a conical guide body 4 is provided, which is designed as a hollow body and is connected at its outer end to the end plate 11.
  • the end plate 11 itself has a central opening 11.5 (FIG.
  • FIG. 4a and 4b show the end plate 11, with FIG. 4a showing a half section and FIG. 4b showing a top view of the inside.
  • the end plate 11 is provided with a plurality of concentric ring grooves, the outer grooves 11.1 and 11.2 each receiving a partial slide.
  • the following groove 1.4 is provided for receiving the outer edge of the outer jacket 6.1, the inner groove 11.3 for receiving the outer edge of the inner jacket 5.1.
  • the three bores arranged at an angle of 120 ° serve to carry out the clamping screws 8 (FIG. 3). 5 shows, analogously to this, the illustration of the end ring 9.
  • the outer ring grooves 9.1 and 9.2 are again intended to receive the corresponding end edges of the slide members 10.1 and 10.2 (FIG. 3).
  • the inner ring grooves 9.4 and 9.3 take the edges of the outer and the inner jacket 6.1 and 5.1 (Fig. 3).
  • the clamping screws are guided through the bores (not designated in any more detail), which ultimately hold the end ring 9, the end plate 11 and the inner and outer shells 5.1 and 6.1 (FIG. 3) arranged between them.
  • the end plate 11 has in the region of the axis a central opening 11.5 which, in conjunction with the conical guide body 4 which is open on both end faces, allows the air to pass through the interior air into the interior of the connecting pipe 6.
  • the two shells, the inner sheath 5.1 and the outer sheath 6.1 are embedded with their outer edges and - since they can thus be supported against the end ring 9 - are tightened by means of the clamping screws 8.
  • Both jackets, the inner jacket 5.1 and the outer jacket 6.1 have a plurality of openings 6.2.
  • the slide elements 10.1 and 10.2 of the adjustment slide 10 are arranged, the distance between the outer jacket 6.1 and the adjustment slide 10 being as small as possible (exaggerated in FIG. 6 for better clarification).
  • Both partial slides can - Fig. 6a - be combined in a single groove 11.1, especially since the sliding of the partial slides 10.1 and 10.2 against each other only takes place when the ventilation system is retracted (and may only be repeated at large time intervals).
  • the two slide elements 10.1 and 10.2 lie almost on top of each other and can be easily fixed together.
  • the setting of the setting slide 10 (FIG. 1) formed from the interconnected slide elements 10.1 and 10.2 can be carried out in a simple manner, as can the setting of the adjusted setting slide by tightening the clamping screws 8.
  • the arrangement shown in FIG. 6b has an annular groove 11.1 and 11.2 for each of the slide elements 10.1 and 10.2.
  • This arrangement is advantageous if, for example, when switching the system from winter operation to transitional operation, from transitional operation to summer operation, from summer operation to transitional operation and back to winter operation, the pulse setting must be carried out by moving the slide elements 10.1 and 10.2 against each other. The individual setting by moving the slide elements 10.1 and 10.2 together remains independent of this.
  • clamping screws, notches or the like be arranged between the sliders, which, when tightened or locked, prevent adjustment relative to one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Duct Arrangements (AREA)
  • Air-Flow Control Members (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Sampling And Sample Adjustment (AREA)
EP87116641A 1986-11-29 1987-11-11 Sortie d'air Expired - Lifetime EP0269923B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87116641T ATE80937T1 (de) 1986-11-29 1987-11-11 Quelluftauslass.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8632109U 1986-11-29
DE8632109U DE8632109U1 (de) 1986-11-29 1986-11-29 Quelluftauslaß

Publications (3)

Publication Number Publication Date
EP0269923A2 true EP0269923A2 (fr) 1988-06-08
EP0269923A3 EP0269923A3 (en) 1989-10-18
EP0269923B1 EP0269923B1 (fr) 1992-09-23

Family

ID=6800698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87116641A Expired - Lifetime EP0269923B1 (fr) 1986-11-29 1987-11-11 Sortie d'air

Country Status (3)

Country Link
EP (1) EP0269923B1 (fr)
AT (1) ATE80937T1 (fr)
DE (2) DE8632109U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996008682A1 (fr) * 1994-09-14 1996-03-21 Softair Ab Dispositif pour appareil d'admission d'air d'appoint
EP0694635A3 (fr) * 1994-07-29 1996-08-28 Pneumafil Corp Diffuseur d'air laminaire
EP1304531A1 (fr) * 2001-10-10 2003-04-23 SCHAKO Klima Luft Ferdinand Schad KG Sortie d'air

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3810482A1 (de) * 1988-03-26 1989-10-05 Krantz H Gmbh & Co Luftauslass zur erzeugung einer turbulenzarmen verdraengungsstroemung
DE3842810A1 (de) * 1988-12-20 1990-06-21 Turbon Tunzini Klimatechnik Be- und entlueftungsvorrichtungen zur abfuehrung von schadstoffen an unteren raumflaechen
DE4037287C2 (de) * 1989-12-29 1997-10-02 Schako Metallwarenfabrik Auslaß
DE10160464C1 (de) * 2001-12-10 2003-08-21 Schako Metallwarenfabrik Quellauslass
DE10161145B4 (de) * 2001-12-12 2006-06-29 Schako Metallwarenfabrik Ferdinand Schad Kg Quellauslass

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7538272U (de) * 1975-12-01 1977-09-15 Schmidt-Reuter, Ingenieurgesellschaft Mbh & Co Kg, 5000 Koeln Luftauslass fuer klimaanlagen
DE2718760A1 (de) * 1977-04-27 1978-11-02 Mabag Luft & Klimatechnik Luftauslass fuer lueftungs- und/oder klimatisierungssysteme
US4261519A (en) * 1978-12-20 1981-04-14 Honeywell Information Systems Inc. Air distribution system
FR2501341B1 (fr) * 1981-03-09 1986-04-11 Toleries Bressane Sarl Chambre d'aspiration pour gaines d'aeration des immeubles et procede de mise en oeuvre

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694635A3 (fr) * 1994-07-29 1996-08-28 Pneumafil Corp Diffuseur d'air laminaire
WO1996008682A1 (fr) * 1994-09-14 1996-03-21 Softair Ab Dispositif pour appareil d'admission d'air d'appoint
EP1304531A1 (fr) * 2001-10-10 2003-04-23 SCHAKO Klima Luft Ferdinand Schad KG Sortie d'air

Also Published As

Publication number Publication date
ATE80937T1 (de) 1992-10-15
EP0269923A3 (en) 1989-10-18
EP0269923B1 (fr) 1992-09-23
DE8632109U1 (de) 1988-01-07
DE3781867D1 (de) 1992-10-29

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