EP0683361A2 - Sortie d'air - Google Patents

Sortie d'air Download PDF

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Publication number
EP0683361A2
EP0683361A2 EP95107723A EP95107723A EP0683361A2 EP 0683361 A2 EP0683361 A2 EP 0683361A2 EP 95107723 A EP95107723 A EP 95107723A EP 95107723 A EP95107723 A EP 95107723A EP 0683361 A2 EP0683361 A2 EP 0683361A2
Authority
EP
European Patent Office
Prior art keywords
air outlet
air
housing
perforated
outlet according
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Withdrawn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
EP95107723A
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German (de)
English (en)
Other versions
EP0683361A3 (fr
Inventor
Hartmut Bree
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0683361A2 publication Critical patent/EP0683361A2/fr
Publication of EP0683361A3 publication Critical patent/EP0683361A3/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Withdrawn legal-status Critical Current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
    • F24F13/02—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 invention relates to an air outlet with a perforated, preferably cylindrical housing according to the preambles of claims 1 and 2.
  • Generic air outlets are known from utility model G93 03 152 U1, DE 40 37 287 A1, DE 36 946 A1, EP 401 481 A1 and EP 0 606 078 A2, but they are not suitable for installation on the floor and at the same time Arrangement above head height.
  • Such air outlets are commonly known as displacement and displacement air outlets.
  • Source air outlets of the generic type predominantly set up on the floor, have the disadvantage that the supply air exits the entire perforated housing at very low speeds and flows through the lounge area with almost no induction, i.e. without admixing room air, and therefore only with one for heat dissipation small under-temperature of mostly max. 4 K can be blown in, otherwise the vertical temperature gradients in the lounge area will be too great for the feeling of comfort.
  • the vertical temperature gradients should not exceed 2 K from the foot to the head area.
  • Another disadvantage is that the cold supply air that swells out sinks to the floor due to the higher density, this results in a decreasing supply air layer height with increasing distance from the air outlet and the indoor air flow velocities in the occupied area are greater than directly near the outlet.
  • the layer height is usually so flat that the people do not get the supply air from the so-called cold air lake, but must inhale the air contaminated by recirculation above the cold air lake with contamination levels of up to over 1.
  • the layer height is usually so flat that the people do not get the supply air from the so-called cold air lake, but must inhale the air contaminated by recirculation above the cold air lake with contamination levels of up to over 1.
  • enormously large quantities of supply air with smaller sub-temperatures are required, which result in irresponsibly high air delivery costs.
  • a source air outlet is known from EP 0 606 078 A2, which, as in DE 4037 287 A1, has two air outlet jackets arranged concentrically one inside the other at a distance to equalize the air outlet speed. Both displacement air outlets are only suitable for installation on the floor. If these spring air outlets were used with their low air outlet speeds at heights above, waterfall ventilation with high room air speeds would result in cooling.
  • the source air outlet of EP 0 606 078 A2 does have adjusting means for influencing the air jet direction, but the air outlet velocities are so much evened out by the second perforated jacket that too little room air is induced at too low velocities and in the cooling case the escaping air sinks too much and Drafts caused.
  • the adjustment means are adjusted so that when cooling occurs on the outer jacket, the speeds increase from the bottom up and the blow-out direction is directed obliquely upwards.
  • the adjusting means are set so that the flow is directed downwards and the speeds on the outer jacket increase significantly from top to bottom, as indicated in EP 0 606 078 A2.
  • the utility model G 93 03 152 U1 is not suitable for installation on the floor.
  • the plate 2 When heating, the plate 2 is always moved upwards in an insert tube and the entire amount of air is blown out vertically downwards. If it were placed close to the floor, there would be severe drafts. 8, a near-ground installation would be more conceivable, but here again a version with two perforated air-blowing jackets lying one inside the other is shown, which in turn leads to greater uniformity of the air outlet velocities on the outer air-blowing jacket, so that in the heating case the supply air rises early to the ceiling and in Cooling case falls down too much when arranged overhead.
  • a low-turbulence displacement air outlet is known from DE 41 36 946 A1, which is not suitable for heating operation, however, for placement on the floor.
  • the supply air is blown out as a low-turbulence displacement flow from a height of approx. 3 to 4 m above the floor.
  • the air jet is guided by a height-adjustable conical impact body, which is arranged below an inner housing in the outer housing.
  • EP 401 481 A1 Another known air outlet from EP 401 481 A1 is also preferably used in industrial halls with larger room heights and can generally be arranged above head height when the supply air flows in from above or directly above the floor when the flow flows in from below.
  • an inflow of the supply air into the air outlet from below through the floor is usually not feasible, especially in industrial halls.
  • the air jet is guided by means of height-adjustable or rotatable diaphragm rings, and in the heating mode with large excess temperatures of the supply air, openings in the bottom of the air outlet are additionally opened when there is an inflow from above. It is a fundamental disadvantage that the air outlets cannot be used universally from above.
  • the invention has for its object to design the generic air outlet so that a much lower supply air volume flow can be blown in with much greater under-temperature by metered induction at much higher air outlet speeds than with source air outlets, the room air speeds do not become larger with increasing distance from the air outlet, but decrease , the supply air layer height increases slightly above head height and the air outlet becomes significantly smaller than a source air outlet.
  • the metered induction is adjusted in the cooling case so that the supply air flowing through the living area is at least slightly colder than the room air temperatures and the degree of contamination of the breathing air is clearly below 1.
  • the dimensionless degree of contamination 1 means that the pollutants in the air are 100% evenly distributed.
  • means are adjusted in the air outlet according to the invention, whereby the air outlet direction is directed slightly obliquely to the floor, thereby ensuring that the warm supply air flows through the lounge area and does not rise directly to the ceiling.
  • the air outlet according to the invention with metered induction with higher air outlet velocities compared to source air outlets can be arranged equally above head height and on the floor. Due to its metered higher outlet speeds, this air outlet induces sufficient room air in the cooling case with a radially obliquely upward blowing direction on the upper and in addition to the installation on the floor, the lower side of the radial jets to provide water ventilation, i.e. the falling of the cold supply air with the consequence of large Avoid indoor air velocities.
  • the air outlet When installed on the floor, the air outlet is placed on feet or mounted a short distance above the floor, whereby the housing can be extended to the floor.
  • Air jet controls can be made by opening and closing the bottom and / or by changing the cross-section in the housing. B. the bottom of the air outlet can be opened automatically and guaranteed for the heating process by means of a motor and control circuit and in addition an individual intervention via cross-sectional changes in the housing is possible and vice versa.
  • all adjustment means in the housing are preferably opened down to the bottom.
  • higher air outlet speeds occur than in the inlet connection, which ensure sufficient induction.
  • intermediate areas there are significantly lower to very low air outlet speeds as with displacement air outlets.
  • the supply air exits approximately horizontally and especially through the deflection at the bottom and intensified by the negative pressure on the outside of the inner tube below the cutting disc or the cutting disc itself and negative pressure outside the housing between the housing and the jets at higher speeds, the supply air flows out steeply directly at the floor. Because the rays emerging at high speeds contract due to the negative pressure and can then spread undisturbed, the momentum remains large enough so that the cooler air does not fall into the lounge area after short distances.
  • a second perforated housing such as. B. in EP 0 606 078 A2 or DE 40 37 287 A1 it would come before the air emerges from the air outlet to equalize the air speeds and when arranged above head to the cold air waste already described with drafts.
  • the means in the air outlet are closed accordingly, depending on the overtemperature.
  • the air flows almost vertically downwards. Is z. B. the adjusting means closed above the inner tube or in the inner tube, this obstacle in the air flow vertically flowing air from above is obliquely deflected radially downwards and outwards, so that the radial air jet emerging at high speeds emerges at the cutting disc strongly directed downwards.
  • a negative pressure is created between the radial jet of the cutting disc and the radial jet of the upper diaphragm disk, so that the upper radial jet is attracted to the stronger jet of the cutting disk and thus also downwards flows.
  • the strongly downward emerging radial jet from the cutting disc is stabilized by the negative pressure between this jet and the housing through the Coanda effect.
  • the downward flow can be increased by opening the bottom.
  • the air outlet consists of a perforated cylindrical housing 1 with an air inlet nozzle 3 and this opposite a bottom 5 that can be opened, an orifice plate 6 and a preferably perforated cutting disc 4 in the perforated housing 1, in which an inner tube 2 is preferably arranged concentrically.
  • a flap 7 for opening the perforated bottom 5 is pivotally mounted about an axis 8.
  • the base 5 is open, the supply air flows out of the housing 1 and out of the openings in the base 5 in a downward direction.
  • the flap 7 can be adjusted manually or by a motor 10 via a lever (not shown) connected to the axis 9.
  • Fig. 2 only the lower area of the outlet is shown.
  • the housing 1 is here extended by the perforated housing 1.1 for installation on the floor 13.
  • the perforation in the lower housing 1.1 can be carried out differently than in the upper housing 1.
  • the bottom 5 has a central opening 5.1, which can be closed by the flap 7.
  • Fig. 3 the flap 7 has been replaced by a height-adjustable plate 9 for opening and closing the bottom 5.
  • the cutting disc 4 is not perforated in this embodiment.
  • the plate 9 can be adjusted by a motor 10 or by hand.
  • Fig. 4 only the lower area of the outlet is shown.
  • the air outlet is here with feet 12 on the floor 13.
  • the plate 9 is here, unlike in Fig. 3, inside the housing.
  • the base 5 is designed with a round disk 5.2 rotating and sliding horizontally on it. Congruent openings 5.3, 5.4 are provided in the bottom 5, as in the disk 5.2, which can be closed or opened by rotating the disk 5.2.
  • the base 5 is designed in the same way as according to FIGS. 5 and 5.1. 6 and 6.1, however, the base 5 is closed.
  • the inner tube 2 has a bottom 14 with openings at the bottom.
  • Under the floor 14 there is a horizontally rotatable disk 14.1 with congruent openings.
  • the disk 14.1 and the disk 5.2 can be rigidly connected to one another in a rotatable manner.
  • air flows through the base 14 and the disk 14.1 the air flows out of the housing 1 radially upwards at an angle.
  • the base 14 is closed and the base 5 is opened. The air flows downwards out of the air outlet 1 - heating.
  • the discs 14.1 and 5.2 can also be designed so that they can be rotated separately.
  • the cutting disc 4 can be closed or perforated, it has an influence on the direction of the radially emerging air jets.
  • the cutting disc 4 can also be made variable in the perforation by placing a disc that can be rotated horizontally around the inner tube 2 on the cutting disc 4 and both discs have perforations that close or open the disc lying on the cutting disc 4 by twisting can be.
  • the inner tube 2 can be designed with flow-influencing means for changing the flow cross section, such as a perforated plate, an orifice plate, a pivotable orifice plate or flap, an iris diaphragm or perforated disks which can be rotated horizontally relative to one another.
  • flow-influencing means for changing the flow cross section such as a perforated plate, an orifice plate, a pivotable orifice plate or flap, an iris diaphragm or perforated disks which can be rotated horizontally relative to one another.
  • an inner tube 2 is arranged in the perforated housing 1 in the central opening of the cutting disc 4.
  • An iris diaphragm is provided above the inner tube 2 between the diaphragm disk 6 and the cutting disk 4 as a means for changing the cross section and air jet steering.
  • a pivotable diaphragm, pivotable flap or a pair of disks which can be rotated relative to one another and have congruent openings for changing the flow cross-section, can be used, which are not shown here in the drawing.
  • a flap 7 for opening the perforated base 5 is pivotally mounted about an axis 8.
  • the iris diaphragm 11 is closed the supply air flows out of the housing 1 in a strongly radially obliquely downward direction. By opening the bottom 5, the outflow pulse is amplified downwards.
  • the iris diaphragm 11 is open and the base 5 is open, heating is also possible.
  • Fig. 8 the air jet steering is achieved with only one plate 9, which is preferably perforated.
  • the plate 9 is moved up and down between the base 5 and the inner tube 2 by means of a lifting motor.
  • the supply air exits radially obliquely upwards, in the upper position radially obliquely downwards.
  • Fig. 9 an embodiment with inner tube 2 is shown, otherwise the basic structure is the same.
  • the air jet is guided here by the plate 9, the plate 9 is smaller than the central opening in the cutting disc 4 and can preferably be adjusted over the entire height of the perforated housing 1. If the plate 9 is at the bottom 5, the supply air exits radially at an angle upwards, at an upper position at an angle downwards.
  • the plate slides on a rod on the longitudinal axis of the air outlet and can be adjusted by means of a hoist or by means of a motor, which is not shown in FIG. 9.
  • Combinations of the adjustment means are a matter of course.
  • z. B. adjusting means above the inner tube 2 and also in the inner tube 2 the air jet changes can be amplified, it is also achieved that, for example, an individual adjustment can be made via the adjusting means in the inner tube and the adjusting means above the inner tube z. B. adjusted by means of a centrally controlled servomotor be to z. B. to guarantee a heating operation after weekends. If the upper adjusting device is closed, downward air jet guidance is always guaranteed, even when the adjusting device in the inner tube is open (cooling position).
  • the air outlets can also be attached to supports or walls at a short distance.
  • the perforations can be partially closed vertically in narrow strips on the outer housing.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Duct Arrangements (AREA)
EP95107723A 1994-05-20 1995-05-20 Sortie d'air. Withdrawn EP0683361A3 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4417715 1994-05-20
DE19944417715 DE4417715C1 (de) 1994-05-20 1994-05-20 Luftauslaß
DE19517613 1995-05-13

Publications (2)

Publication Number Publication Date
EP0683361A2 true EP0683361A2 (fr) 1995-11-22
EP0683361A3 EP0683361A3 (fr) 1997-06-04

Family

ID=6518588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107723A Withdrawn EP0683361A3 (fr) 1994-05-20 1995-05-20 Sortie d'air.

Country Status (2)

Country Link
EP (1) EP0683361A3 (fr)
DE (2) DE4417715C1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7891464B2 (en) * 2006-06-15 2011-02-22 Hewlett-Packard Development, L.P. System and method for noise suppression
DE102014107957A1 (de) * 2014-06-05 2015-12-17 Caverion Deutschland GmbH Verdrängungsluftauslass und Verfahren zur Belüftung eines Raumes
CN106461261A (zh) * 2014-04-07 2017-02-22 普利荷达有限公司 用于空气分布的空气调节元件
EP3150936A1 (fr) * 2015-09-30 2017-04-05 LTG Aktiengesellschaft Sortie d'air et son procede de fonctionnement
WO2018167037A1 (fr) * 2017-03-13 2018-09-20 Krantz Gmbh Sortie d'air de déplacement
WO2020165139A1 (fr) 2019-02-12 2020-08-20 Krantz Gmbh Passage d'air destiné à la ventilation et à la thermorégulation d'une pièce d'un bâtiment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115127176B (zh) * 2022-08-30 2022-12-06 珠海翔翼航空技术有限公司 一种用于长时段飞行训练模拟舱的空气调节设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE36946C (de) G. Brinkmann junior in Witten a. d. Ruhr, Westfalen Neuerung an einer selbsttätigen Dampfschmiervorrichtung
EP0401481A1 (fr) 1989-06-03 1990-12-12 H.KRANTZ - TKT Gesellschaft mit beschränkter Haftung Sortie d'air
DE4037287A1 (de) 1989-12-29 1991-07-04 Schako Metallwarenfabrik Auslass
DE4136946A1 (de) 1991-11-11 1993-05-13 Krantz H Gmbh & Co Vorrichtung zur erzeugung einer turbulenzarmen verdraengungsstroemung
DE9303152U1 (de) 1993-03-04 1993-06-24 Erwin Müller GmbH & Co, 4450 Lingen Luftauslaß
EP0606078A2 (fr) 1993-01-08 1994-07-13 H KRANTZ-TKT GmbH Sortie d'air pour installation de traitement d'air

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3017397C2 (de) * 1980-05-07 1982-09-02 Turbon-Tunzini Klimatechnik GmbH, 5060 Bergisch Gladbach Luftauslaß
DE3542389A1 (de) * 1985-11-30 1987-06-04 Meyer Fa Rud Otto Luftdurchlass
DE3809157A1 (de) * 1988-03-18 1989-09-28 Schako Metallwarenfabrik Deckenauslass
DE4122432A1 (de) * 1991-07-06 1991-11-07 Ltg Lufttechnische Gmbh Industrieluftauslass zum heizen oder kuehlen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE36946C (de) G. Brinkmann junior in Witten a. d. Ruhr, Westfalen Neuerung an einer selbsttätigen Dampfschmiervorrichtung
EP0401481A1 (fr) 1989-06-03 1990-12-12 H.KRANTZ - TKT Gesellschaft mit beschränkter Haftung Sortie d'air
DE4037287A1 (de) 1989-12-29 1991-07-04 Schako Metallwarenfabrik Auslass
DE4136946A1 (de) 1991-11-11 1993-05-13 Krantz H Gmbh & Co Vorrichtung zur erzeugung einer turbulenzarmen verdraengungsstroemung
EP0606078A2 (fr) 1993-01-08 1994-07-13 H KRANTZ-TKT GmbH Sortie d'air pour installation de traitement d'air
DE9303152U1 (de) 1993-03-04 1993-06-24 Erwin Müller GmbH & Co, 4450 Lingen Luftauslaß

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7891464B2 (en) * 2006-06-15 2011-02-22 Hewlett-Packard Development, L.P. System and method for noise suppression
CN106461261A (zh) * 2014-04-07 2017-02-22 普利荷达有限公司 用于空气分布的空气调节元件
CN106461261B (zh) * 2014-04-07 2020-04-03 普利荷达有限公司 用于空气分布的空气调节扩散器
DE102014107957A1 (de) * 2014-06-05 2015-12-17 Caverion Deutschland GmbH Verdrängungsluftauslass und Verfahren zur Belüftung eines Raumes
DE102014107957B4 (de) * 2014-06-05 2019-11-14 Eckehard Fiedler Verfahren zur Belüftung eines Raumes
EP3150936A1 (fr) * 2015-09-30 2017-04-05 LTG Aktiengesellschaft Sortie d'air et son procede de fonctionnement
WO2018167037A1 (fr) * 2017-03-13 2018-09-20 Krantz Gmbh Sortie d'air de déplacement
WO2020165139A1 (fr) 2019-02-12 2020-08-20 Krantz Gmbh Passage d'air destiné à la ventilation et à la thermorégulation d'une pièce d'un bâtiment

Also Published As

Publication number Publication date
DE4417715C1 (de) 1995-12-07
DE19517613A1 (de) 1996-11-14
EP0683361A3 (fr) 1997-06-04

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