EP0080606B1 - Deckenluftauslass - Google Patents
Deckenluftauslass Download PDFInfo
- Publication number
- EP0080606B1 EP0080606B1 EP82110186A EP82110186A EP0080606B1 EP 0080606 B1 EP0080606 B1 EP 0080606B1 EP 82110186 A EP82110186 A EP 82110186A EP 82110186 A EP82110186 A EP 82110186A EP 0080606 B1 EP0080606 B1 EP 0080606B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air outlet
- ceiling air
- adjusting
- outlet according
- ceiling
- 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.)
- Expired
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/01—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station in which secondary air is induced by injector action of the primary air
-
- 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
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/14—Details or features not otherwise provided for mounted on the ceiling
Definitions
- the invention relates to a ceiling air outlet, in particular for air-conditioned rooms, with a housing which can be connected to a supply air line and which has a partition, two flow paths and an outlet grille, a control flap being arranged in at least one of the flow paths.
- Ceiling air outlets are known in various embodiments. They should distribute the air supplied by an air conditioning system as evenly as possible in the room to be air conditioned.
- the volume flow can normally only be reduced to approx. 50% when it is blown into the room through outlets with constant discharge cross-sections. If the volume flow is reduced to less than 50%, malfunctions can occur.
- the total volume flow moved in the jet decreases proportionally with the injected volume flow, i.e. less indoor air is induced.
- the associated reduction in the flow velocity in the residence zone then often leads to complaints about discomfort.
- the jet direction also becomes unstable or the jet direction changes.
- the influence of gravity of the cold air blown in is so great that the jet detaches itself prematurely from the ceiling and enters the occupied zone at a flow rate that is still too high and too low a temperature.
- the desired ceiling jet cannot even form.
- the object of the invention is therefore to improve a ceiling air outlet of the type described at the outset in such a way that the room air flow remains stable with variable supply air supplied by the air conditioning system.
- the partition is arranged essentially parallel to the outlet grille, that the partition has at least one opening that can be closed with the control flap and that in the partition wall at least in the area of the free edge of the control flap a series of nozzle openings or directed towards the outlet grille Nozzle slots is arranged.
- the ceiling air outlet according to the invention does not have separate flow channels, but only separate flow paths through the partition.
- the supply air supplied by the air conditioning system constantly flows through the nozzle openings or nozzle slots arranged along the edge of the opening or the adjusting flap.
- the control flap When the control flap is closed, the air jets emerging from the nozzle openings or nozzle slots create a negative pressure in the induction space between the partition and the outlet grille, so that ambient air is sucked into the induction space through the outlet grille.
- This room air mixes with the supply air emerging from the nozzle openings or nozzle slots and is discharged back into the room with the jets.
- the proportion of room air sucked into the induction room changes when the valve is opened.
- the butterfly valve By suitably controlling the butterfly valve, it is possible to always set up the flow conditions so that the total amount of air exiting from the ceiling air outlet consisting of the supply air volume and the induced indoor air volume remains constant even with variable supply of supply air by the air conditioning system.
- the housing When projected onto the outlet grille, the housing can have an essentially rectangular to square cross section. This will enable, as will be explained later, a clear design of the ceiling air outlet with regard to the control of a constant total quantity.
- the partition wall can have two adjacent openings, each of which is assigned an adjusting flap.
- the pivot axes of the two control flaps should preferably be arranged side by side and parallel to one another.
- substantially uniform flow conditions can be achieved, in particular with a rectangular housing cross-section, if an air guide grille with fins arranged transversely to the pivot axis of the control flap is provided on the supply air side of each control flap. These fins deflect the supply air, which usually enters the side of the housing, in such a way that in each section of the housing, the supply air passing through the opening or openings with the jets emerging from the nozzle openings or nozzle slots without significant eddy formation, i.e. can combine without loss.
- the nozzle openings or nozzle slots are expediently arranged in a ring-like manner around the opening or openings, so that a ring of jets is formed below the dividing wall and surrounds the induction space mentioned at the beginning.
- the nozzle openings should be formed by tubular connecting pieces attached to the partition. These nozzles can taper conically in the direction of flow if a higher jet speed is desired in the induction chamber.
- each valve is loaded with a counterweight, which brings the valve into the closed position with only a small supply of fresh air. As the supply of air increases, so does the pressure on the control flap, which opens more or less depending on the pressure conditions. In principle, it can also be achieved in this embodiment that the total quantity emitted from the ceiling air outlet and consisting of the supply air quantity and induced room air quantity remains constant.
- an actuating drive with a servomotor can be assigned to each control flap.
- the adjustment flap can then be adjusted according to different criteria.
- the servomotor is part of a control circuit, the actual value transmitter of which is a pressure sensor arranged on the supply air side of the partition. Similar to the version with a counterweight, the control flap is then adjusted in accordance with the pressure on the supply air side of the partition. The pressure sensor measures the static pressure above the partition and the control loop is set so that this pressure remains constant.
- the servomotor as part of a control circuit, the actual value transmitter of which is a temperature sensor arranged in the room to be air-conditioned.
- This version can be used advantageously if a volume flow controller is connected upstream of the ceiling air outlet, because then the actuator of the flap can be connected in parallel with an actuator of the upstream volume flow controller and can be connected together with the latter in a control circuit that keeps the room temperature constant.
- the ceiling air outlet shown in the drawing has a box-shaped housing 1 for connection to a supply air line 2.
- the supply air line 2 opens into an upper housing space 3 which is delimited on its underside by a partition 4 which divides the housing 1 into the upper housing space 3 and a lower housing space, which is referred to below as induction space 5.
- On the underside of the housing 1 there is an outlet grille 6 with fins 7 which deflect the air emerging from the induction space 5 to the side, so that when the ceiling air outlet is embedded in a ceiling, the emerging air flows under the ceiling.
- the partition 4 is arranged parallel to the outlet grille 6.
- the partition 4 In the middle part of the partition 4 there are two openings 8, 9 next to each other, each of which can be closed with an adjusting flap 10 or 11.
- the flaps 10, 11 are pivotally mounted on pivot axes 12, 13 which extend parallel to one another between the two openings 8, 9 and which are coupled in opposite directions to one another at one end of the housing via a gear 14.
- the openings 8, 9 are each covered with an air guide grille 15 and 16, respectively, acting as a rectifier, the lamellae 17 of which align the air flow passing through the openings 8, 9 from the upper housing space 3 substantially perpendicular to the plane of the partition 4.
- nozzle openings 18 On the partition 4, a series of nozzle openings 18 is arranged, which extend in a ring around the openings 8, 9.
- Each nozzle opening 18 consists of a tubular socket 19, the axis of which is directed perpendicular to the plane of the partition 4, each socket 19 being tapered in the direction of the outlet grille 6.
- each control flap 10 or 11 carries a counterweight, under the action of which the respective steep flap 10 or 11 is brought into its rest position in the absence or with little air flow, in which case it has the assigned opening 8 or 9 closes.
- a counterweight 20 is drawn for the valve 10. It goes without saying that the adjusting flap 11 also carries a corresponding counterweight.
- control flaps 10 and 11 are connected to an actuator 22 via the gear 14 and an actuator 21.
- the ceiling air outlet shown works as follows: If only relatively little air is supplied from the air conditioning system (not shown) via the supply air line 2, the control flaps 10, 11, as shown in FIG. 1 with solid lines, remain in their rest position, ie the openings 8, 9 are closed. The supply air can consequently only flow from the upper housing space into the induction space via the nozzle openings 18. Since the nozzle openings 18 are arranged around the openings 8, 9, the rays (arrows 23) emerging from these nozzle openings 18 limit the induction space 5 and generate a negative pressure therein. Correspondingly, room air (arrows 24) is supplied through the outlet grille 6 sucks, which mixes with the supply air jets emerging from the nozzle openings 18 and is discharged together with the supply air from the ceiling air outlet.
- control flaps 10, 11 are opened more or less, as is shown in FIG. 1 with dashed lines. Then the supply air can flow not only through the nozzle openings 18 but also through the openings 8, 9 from the upper housing space 3 into the induction space 5. The pressure difference between the induction room 5 and the room to be ventilated is lower, so that less room air (arrows 24) enters the induction room 5.
- control of the position of the control flaps 10, 11 is achieved in the embodiment according to FIG. 3 by the counterweight 20. 1, 4 and 5, the control flaps 10, 11 are adjusted with the aid of the servomotor 22.
- the servomotor 22 is part of a control circuit, the actual value transmitter of which is a pressure sensor 25 arranged on the supply side of the partition 4.
- This pressure sensor 25 measures the static pressure in the upper housing chamber 3 and reports this pressure to a pressure regulator 26, which in turn controls the servomotor 22.
- the servomotor 22 is connected as an actuator in a control circuit, the actual value transmitter of which is a temperature sensor 27 arranged in the room to be air-conditioned.
- This temperature sensor 27 reports the room temperature to a controller 28, which not only controls the servo motor 22 of the flaps 10, 11, but also a further servomotor 20, with which a flap 30 of a volume flow controller 31 arranged in the supply air line 2 in front of the ceiling air outlet is adjusted.
- the two servomotors 22, 29 are connected in parallel. It goes without saying that the control characteristics of the controllers 26 or 28 or the counterweight 20 are designed such that the total amount of air emerging from the ceiling air outlet is always constant, regardless of the supply air supply in each case.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Duct Arrangements (AREA)
- Air-Flow Control Members (AREA)
- Building Environments (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82110186T ATE11337T1 (de) | 1981-11-28 | 1982-11-05 | Deckenluftauslass. |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813147224 DE3147224A1 (de) | 1981-11-28 | 1981-11-28 | Deckenluftauslass |
DE3147224 | 1981-11-28 | ||
DE19818134758U DE8134758U1 (de) | 1981-11-28 | 1981-11-28 | Deckenluftauslass |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0080606A1 EP0080606A1 (de) | 1983-06-08 |
EP0080606B1 true EP0080606B1 (de) | 1985-01-16 |
Family
ID=25797629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82110186A Expired EP0080606B1 (de) | 1981-11-28 | 1982-11-05 | Deckenluftauslass |
Country Status (7)
Country | Link |
---|---|
US (1) | US4508022A (nl) |
EP (1) | EP0080606B1 (nl) |
JP (1) | JPS58104444A (nl) |
DE (3) | DE3147224A1 (nl) |
ES (1) | ES275688Y (nl) |
NO (2) | NO154444C (nl) |
ZA (1) | ZA828766B (nl) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
HRP20080662B1 (hr) * | 2008-12-19 | 2013-11-08 | Blago Brkić | Konstrukcija rešetkaste nape za odsis otrovnih plinova ili para |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3241268C1 (de) * | 1982-11-09 | 1984-01-19 | Maurmann Ingenieurbüro GmbH, 5628 Heiligenhaus | Deckenluftauslaß für Klimaanlagen |
US4535685A (en) * | 1984-03-05 | 1985-08-20 | Maurmann Ingenieurburo Gmbh | Air outlet for air conditioning systems |
AU583505B2 (en) * | 1984-05-10 | 1989-05-04 | Matsushita Electric Industrial Co., Ltd. | Flow deflecting assembly |
FI74344C (fi) * | 1986-01-23 | 1988-01-11 | Halton Oy | Utspridare foer ingaongsluft. |
DE4417188A1 (de) * | 1994-05-17 | 1995-11-23 | Flaekt Ab | Bearbeitungskabine und Verfahren zum Belüften einer Bearbeitungskabine |
US5938525A (en) | 1997-07-23 | 1999-08-17 | Tompkins Industries, Inc | Air diffuser, and mold and method for its production |
US6361432B1 (en) | 1999-08-17 | 2002-03-26 | Tomkins Industries, Inc. | Air diffuser with air flow regulator |
US20110122603A1 (en) * | 2005-09-12 | 2011-05-26 | Gary Peter Shamshoian | Integrated laboratory light fixture |
US7815327B2 (en) * | 2005-09-12 | 2010-10-19 | Gary Peter Shamshoian | Integrated light fixture and ventilation means |
FI122286B (fi) | 2006-01-16 | 2011-11-15 | Halton Oy | Tuloilmalaite ja menetelmä ilmavirtausmäärän säädössä |
FI122284B (fi) * | 2006-10-03 | 2011-11-15 | Halton Oy | Ilmavirtauksen päätelaite |
US20090264062A1 (en) * | 2008-04-16 | 2009-10-22 | Nuclimate Air Quality Systems, Inc. | Ventilation system |
ES2393853T3 (es) * | 2010-02-03 | 2012-12-28 | Trox Gmbh | Salida de aire de techo para instalaciones de aire acondicionado |
US9551496B2 (en) | 2011-04-20 | 2017-01-24 | Dan P. McCarty | Displacement-induction neutral wall air terminal unit |
DE202012101635U1 (de) * | 2012-04-05 | 2012-06-22 | Trox Gmbh | Einrichtung zum Belüften, zum Heizen und/oder zum Kühlen eines Raumes |
BE1021395B1 (fr) * | 2013-03-05 | 2015-11-16 | W Properties Sprl | Climatiseur |
US10401050B2 (en) * | 2015-01-16 | 2019-09-03 | Air Distribution Technologies Ip, Llc | Lighting control for chilled beam |
WO2016123445A1 (en) * | 2015-01-30 | 2016-08-04 | Mestek, Inc. | Air handling unit and method for controlling a flow of air therethrough |
US10871304B2 (en) | 2016-11-07 | 2020-12-22 | Air Distribution Technologies Ip, Llc | Air diffuser |
DK3379165T3 (da) | 2017-03-21 | 2021-06-07 | Lindinvent Ab | Selvjusteret indblæsningsluftterminal |
NO344806B1 (no) * | 2018-02-27 | 2020-05-04 | Trox Auranor Norge As | Kjølebaffel. |
NO345103B1 (no) * | 2018-10-31 | 2020-09-28 | Trox Auranor Norge As | Kjølebaffel |
US11752838B2 (en) * | 2019-04-22 | 2023-09-12 | Air Distribution Technologies Ip, Llc | Variable flow adapters for air diffusers of HVAC systems |
US11187431B2 (en) * | 2019-04-22 | 2021-11-30 | Air Distribution Technologies Ip, Llc | Variable flow adapters for air diffusers with damper |
WO2023210307A1 (ja) * | 2022-04-25 | 2023-11-02 | パナソニックIpマネジメント株式会社 | 送風システム |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3012493A (en) * | 1957-01-22 | 1961-12-12 | Nl Airconditioning Mij Gebr Va | Air-box with grille |
DE6929459U (de) * | 1968-07-30 | 1971-01-21 | Nordisk Ventilator | Druckluftgesteuerter luftmengenregler |
US3592240A (en) * | 1968-10-30 | 1971-07-13 | Allied Thermal Corp | Damper unit for controlling air flow |
SE334991B (nl) * | 1969-03-19 | 1971-05-10 | Svenska Flaektfabriken Ab | |
DE2033195C3 (de) * | 1970-07-04 | 1981-04-16 | LTG Luftechnische GmbH, 7000 Stuttgart | Luftaustrittseinrichtung für Klimaanlagen |
US3946647A (en) * | 1973-05-07 | 1976-03-30 | Aktiebolaget Svenska Flaktfabriken | Device for preferably cooling a room by a ventilation air stream |
DE2542160A1 (de) * | 1975-09-22 | 1977-03-31 | Ltg Lufttechnische Gmbh | Volumenstromregler fuer lufttechnische anlagen |
US4020752A (en) * | 1975-10-10 | 1977-05-03 | Lear Siegler, Inc. | Air diffuser with modular core |
DE2842924C2 (de) * | 1978-10-02 | 1986-11-06 | Gebrüder Trox, GmbH, 4133 Neukirchen-Vluyn | Deckenluftauslaß für Klimaanlagen |
DE3042216C2 (de) * | 1980-11-08 | 1986-03-27 | H. Krantz Gmbh & Co, 5100 Aachen | Drallauslaß |
-
0
- NO NO154444D patent/NO154444L/no unknown
-
1981
- 1981-11-28 DE DE19813147224 patent/DE3147224A1/de not_active Withdrawn
- 1981-11-28 DE DE19818134758U patent/DE8134758U1/de not_active Expired
-
1982
- 1982-10-28 NO NO823589A patent/NO154444C/no unknown
- 1982-11-05 DE DE8282110186T patent/DE3261976D1/de not_active Expired
- 1982-11-05 EP EP82110186A patent/EP0080606B1/de not_active Expired
- 1982-11-24 US US06/444,166 patent/US4508022A/en not_active Expired - Fee Related
- 1982-11-26 ES ES1982275688U patent/ES275688Y/es not_active Expired
- 1982-11-29 JP JP57207788A patent/JPS58104444A/ja active Granted
- 1982-11-29 ZA ZA828766A patent/ZA828766B/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
HRP20080662B1 (hr) * | 2008-12-19 | 2013-11-08 | Blago Brkić | Konstrukcija rešetkaste nape za odsis otrovnih plinova ili para |
Also Published As
Publication number | Publication date |
---|---|
NO823589L (no) | 1983-05-30 |
ZA828766B (en) | 1983-09-28 |
DE3147224A1 (de) | 1983-06-09 |
NO154444L (nl) | |
JPH0316583B2 (nl) | 1991-03-05 |
NO154444C (no) | 1986-09-17 |
US4508022A (en) | 1985-04-02 |
DE3261976D1 (en) | 1985-02-28 |
JPS58104444A (ja) | 1983-06-21 |
ES275688U (es) | 1984-03-16 |
EP0080606A1 (de) | 1983-06-08 |
DE8134758U1 (de) | 1982-04-29 |
ES275688Y (es) | 1984-10-16 |
NO154444B (no) | 1986-06-09 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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