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EP3327366B1 - Sortie d'air permettant le reglage de la temperature d'une chambre - Google Patents

Sortie d'air permettant le reglage de la temperature d'une chambre Download PDF

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Publication number
EP3327366B1
EP3327366B1 EP17202716.1A EP17202716A EP3327366B1 EP 3327366 B1 EP3327366 B1 EP 3327366B1 EP 17202716 A EP17202716 A EP 17202716A EP 3327366 B1 EP3327366 B1 EP 3327366B1
Authority
EP
European Patent Office
Prior art keywords
air
air outlet
housing
elements
jet
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.)
Active
Application number
EP17202716.1A
Other languages
German (de)
English (en)
Other versions
EP3327366A1 (fr
Inventor
Hans Felser
Claus Schweinheim
Dietmar Rossbruch
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.)
Krantz GmbH
Original Assignee
Krantz 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 Krantz GmbH filed Critical Krantz GmbH
Publication of EP3327366A1 publication Critical patent/EP3327366A1/fr
Application granted granted Critical
Publication of EP3327366B1 publication Critical patent/EP3327366B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F24F13/065—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as cylindrical or spherical bodies which are rotatable
    • 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
    • F24F13/072—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser of elongated shape, e.g. between ceiling panels
    • 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
    • F24F2013/0608—Perforated ducts

Definitions

  • the invention relates to an air outlet for tempering a room, in particular a laboratory, with a flow-through housing with a length and a width, which has an air inlet cross section and at least one air outlet cross section, with a connecting piece for supplying supply air being arranged in an area of the air inlet cross section, wherein two opposite side walls of the housing are each provided with at least one jet element, through which individual supply air jets can be discharged into the room in a turbulent manner, at least one channel extending in the longitudinal direction of the housing being arranged on an underside of the housing, through which supply air can be supplied to the room is, the bottom of the housing is formed apart from the channel closed.
  • a connecting piece several air outlets can also be connected to one another via pipelines and fed together by a single supply air system.
  • Air outlets are well known in the prior art and can meet different requirements. With regard to the temperature control of laboratories, reliable ventilation of certain workplaces is typically required, and apart from the supply air provided, significant cooling is also desirable.
  • a device for laboratory ventilation which is composed of several modules, wherein individual ceiling modules are connected via connecting modules.
  • the ceiling modules serve to supply air to certain workplaces and the connection modules serve as pure connection elements between two ceiling modules.
  • an air outlet for ventilation of a laboratory is known. It is characterized in that - as described at the beginning - supply air is emitted into the room via air outlet openings on two side walls and on a bottom side, a heat exchanger module being able to be arranged in the region of the air outlet openings arranged on the bottom side. If the known air outlet is equipped with a heat exchanger module, room air is drawn into the heat exchanger via the flow of the supply air flowing from the air outlet openings arranged on the underside, where the room air is tempered and returns to the room by means of the flowing supply air. With that the DE 10 2013 109 702 A1 an air outlet with the features of the preamble of claim 1.
  • An "unfavorable inflow” is characterized in particular by high air velocities which extend along the digestorium, for example in the vertical direction or at an angle to the digestorium.
  • the high flow velocities favor a so-called “flushing" of air from the digestorium into the laboratory room. It goes without saying that such discharge of air from the digestorium is undesirable and, depending on the application, can be highly problematic.
  • the present invention has set itself the task of further developing an air outlet for tempering a room in such a way that it is distinguished by a high cooling capacity and at the same time a low-turbulence flow of the supply air, which at least reduces the flushing out of air from a digestorium.
  • an air outlet with the features of claim 1.
  • the side walls of the housing having the at least one jet element are perforated and the at least one channel is arranged in one or more at least partially cylindrical element (s) in series, the channel being designed such that it is viewed in the flow direction of the channel a change of direction takes place.
  • the at least one element or the plurality of elements located in series is rotatably mounted about its longitudinal axis, so that an outflow direction of the air flowing through the channel can be changed relative to the air outlet.
  • at least one air guiding element is arranged within the housing of the air outlet.
  • an “air guiding element” is understood to mean a component which is suitable for distributing supply air flowing into the housing of the air outlet to the side walls and the bottom of the housing, so that an inflow to the at least one duct and the at least one jet element can be controlled is.
  • the various air outlet cross sections that is to say the jet element, the perforation of the side walls and the at least one channel on the underside of the housing, are fed uniformly with supply air.
  • the at least one air guide element can also serve to distribute the supply air equally or alternatively over the length of the air outlet. For example, it is conceivable that 1/3 of the total supply air volume flow that is fed to the air outlet flows through the at least one duct and through the side walls (jet element (s) and perforation) into the room to be ventilated. In this way it can be ensured that flow velocities of the air volume flows leaving the air outlet are at a level that is as uniformly low as possible. This is of particular importance from the aspect of the comfort of the people in the ventilating room and in particular from the aspect of the risk of air being flushed out of a digestorium.
  • the supply air supplied via the air inlet cross section of the housing leaves the housing at a comparatively high speed, ie as a turbulent, jet-shaped volume flow, via the jet elements arranged in the side walls. Due to the fact that the side walls of the housing are perforated, a resulting negative pressure acting on the side surfaces of the housing causes supply air to be drawn into the room via the perforation.
  • the supply air flowing into the room via the perforation of the side walls flows with little turbulence, so that overall a so-called mixed source ventilation is created from the turbulent volume jet and the laminar incoming air, which can also be referred to as hybrid ventilation.
  • This design makes it possible to generate comparatively high air volume flows, which are necessary for removing the sometimes considerable cooling loads, but at the same time can operate at relatively low flow speeds, which keep the risk of flushing out low.
  • the flow velocities are simultaneously raised above the level of a pure source ventilation, so that the cooled "supply air” does not immediately “fall down” vertically downwards. The latter usually leads to severe discomfort and an uneven temperature distribution in the room to be ventilated.
  • supply air also enters the room via the at least one duct on the underside of the housing, the duct being formed in at least one partially cylindrical element in such a way that - viewed in the direction of flow of the duct - a change in direction takes place.
  • This so-called Coanda effect is advantageous because the supply air that is released into the room does not flow directly to a workplace, but initially in a horizontal or oblique direction. For this reason, it is possible to provide a highly inductive flow of the supply air on the underside of the housing, which entrains a high proportion of room air.
  • the setting or alignment of the at least one channel can be done manually.
  • the air outlet according to the invention to emit a high supply air intake, that is to say a high volume of supply air, into the room, with a total low-turbulence supply air flow being present.
  • a turbulent supply air by means of the at least one jet element and the channel on the one hand and the laminar inflowing supply air on the long sides of the housing on the other hand results in a low-turbulence supply air input into the room, which is perceived as pleasant for people inside and the risk of flushing out reduced from air from a digestorium.
  • At least one horizontally and at least one vertically extending air guiding element can also be arranged within the housing.
  • the at least one air guiding element is formed by a perforated plate.
  • a perforated plate is particularly suitable for distributing the supply air to pre-flow chambers located behind the perforated plate, from which the supply air passes into the room to be ventilated, by means of a throttling effect achieved by the individual holes in the perforated plate.
  • two, three or more than three channels running parallel to one another are arranged side by side in the bottom of the housing.
  • the number of channels and the flow cross-section of the individual channels should be adapted to the required total temperature control in order to obtain optimal individual conditions in a room.
  • the at least partially cylindrical elements are rotatably supported independently of one another. It is therefore possible for channels located next to one another to point in different directions. If the air outlet according to the invention is located in the middle of the room, individual channels can be aligned approximately to the right and other channels approximately to the left, so that the room as a whole is supplied with supply air via the channels located on the underside of the housing. Of course, the channels can also be aligned in a common direction.
  • a single channel is arranged in a plurality of at least partially cylindrical elements located in series, it is also possible for the individual elements to be able to be set independently of one another in different directions.
  • a different blow-out direction of the channel sections thus created is possible over the length of the overall channel.
  • the blow-out direction can be set manually and can be easily adapted to individual needs.
  • the channel in the at least one element, viewed in the cross section of the element can be designed, for example, as angled or curved.
  • the at least one blasting element has a plurality of inclined slots forming air outlet cross sections, wherein an inclination of the individual slots can be adjusted in each case.
  • the inclination can be set manually.
  • the at least one jet element as a whole is rotatably arranged in or on the side wall associated with the jet element, so that an outflow direction of the respective jet element can be changed by rotating the same.
  • each blasting element individually when using a plurality of blasting elements and in this way to the respective space to be ventilated to coordinate individually and finally to model the flow conditions in the room as optimally as possible.
  • FIG. 1 An air outlet 1 according to the invention for tempering a room 2 is shown, which is particularly suitable for tempering a laboratory.
  • the Figure 1 is a view of a longitudinal side 3 of the air outlet 1 , which has a flow-through housing 4 with a length L and a width B ( Figure 2 ) has.
  • the housing 4 is cuboidal and thus has two longitudinal side walls 5 and two transverse end walls 6.
  • the housing 4 has a cover 7 and a bottom 8.
  • the housing 4 consists of folded sheets.
  • a connecting piece 9 is arranged, via which the air outlet 1 is supplied with supply air.
  • the connecting piece 9 can be connected to a collecting pipe, to which further air outlets are also connected and which in turn is connected to a supply air system.
  • the connecting piece 9 can be connected directly to a supply air system.
  • a clear cross section of the connecting piece 9 forms an air inlet cross section 10 into the housing 4.
  • the connecting piece 9 can also be arranged in an end wall 6 .
  • the side wall 5 of the housing 4 in the Figure 1 is perforated. Furthermore, the side wall 5 has two rows 11 of beam elements 12 spaced apart from one another.
  • the steel elements 12 are formed by round disks, in each of which seven inclined air channels 13 are arranged, in which Figure 1 only seven individual air outlet cross sections 14 of the air channels 13 of the jet elements 12 can be seen.
  • the exact design of the air channels 13 is in connection with the Figure 2 explained in more detail.
  • the opposite side wall, which in the Figure 1 is not recognizable, is designed analogously.
  • FIG. 2 A cross section of the air outlet 1 according to the invention is shown, from which, among other things, the structure of the jet elements 12 can be seen .
  • the jet elements 12 When viewed in cross section, the jet elements 12 have seven inclined air channels 13 , of which in the Figure 2 only three are shown.
  • the air channels 13 of the upper row 11 of jet elements 12 are oriented upwards and the air channels 13 of the lower rows 11 ' of jet elements 12 are directed downward.
  • the jet elements 12 can be manually adjusted independently of one another, so that an individual fanning out of the supply air into individual supply air jets can be achieved.
  • the air channels 13 can be aligned both in the horizontal and in the vertical direction.
  • jet elements 12 with a different number of air channels 13 are also conceivable.
  • the perforation 15 of the side walls 5 is in the Figure 2 recognizable.
  • channels 16 which run parallel to one another in the longitudinal direction of the housing 4 and are each incorporated in an at least partially cylindrical element 17 .
  • the channels 16 are arranged centrally overall in the bottom 8 of the housing 4 .
  • the elements 17 have Cross-sections of opposing walls 18 , 18 ', which run in an arcuate or angled manner, so that an arcuate or angled channel 16 is formed overall.
  • the elements 17 are rotatably mounted about their longitudinal axis, so that the orientation of the channels 16 located therein can be adjusted.
  • the setting can be carried out manually, the alignment of the channels 16 being adjustable independently of one another so that they can point in different directions.
  • the channels 16 extend in the longitudinal direction of the housing 4 , wherein they can extend over the entire length L of the housing 4 , that is to the end walls 6 , or can end at a distance from the end walls 6 .
  • the elements 17 can be designed as short pieces and, for example, have a length of approximately 5 cm to 10 cm, a multiplicity of elements 17 being arranged in a row.
  • the individual pieces are then also rotatably supported about their longitudinal axis, which can be set independently of adjacent pieces in a row. In this case, the alignment of the individual elements of a row can be adjusted differently over the length of the row.
  • the air outlet 1 according to the invention can also be formed with only a single duct 16 or with a number of ducts 16 located parallel to one another, which is different from three.
  • a chamber 19 with a width which, viewed in the direction of flow (arrow 20 ), that is to say from top to bottom, becomes larger. While the Chamber 19 has a width b1 on each side facing the element 17 , which has approximately the width (or diameter) of the element 17 , the width b2 is smaller on a side facing away from the element 17 . This creates a kind of opposite nozzle action that slows down the supply air flow entering the channels 16 . However, the width b1 of the chamber 19 in the region of the element 17 exceeds a width of the channel 16 in the element 17.
  • the air guide elements 21 , 21 ', 21 " Arranged within the housing 4 are three air guide elements 21 , 21 ', 21 ", which run over the entire length L of the housing 4.
  • the air guide elements 21 , 21 ', 21 " are formed by perforated plates, two air guide elements 21 ', 21 “vertically run and are each at a distance of about 6 cm to 8 cm from the jet elements 12.
  • the third air guide element 21 runs horizontally and extends between the two vertically running air guide elements 21 ', 21 ". It has a distance from the bottom 8 of the housing 4 of approximately 100 mm to 150 mm.
  • the total height H of the housing 4 is approximately 250 mm to 280 mm.
  • the air guiding elements 21 , 21 ', 21 serve on the one hand to supply air introduced from the connecting piece 9 into the housing 4 over the entire length L of the flow chambers 22 , 23 , 24 located behind the air guiding elements 21 , 21 ', 21 " in terms of flow technology to direct or distribute, the distribution of the supply air should be as uniform as possible.
  • the supply air should be distributed to the pre-flow chambers 22 , 23, 24 as far as possible in such a way that supply air volume flows that lead the air outlet 1 down through the channels 16 and through the perforation 15 and the jet elements 12 to the respective sides leave, are as even as possible.
  • the air guiding elements 21 , 21 ', 21 "here serve in particular to ensure a uniform flow against the jet elements 12 , the perforation 15 and the channels 16.
  • a third of the supply air is distributed over the two side walls 5 and flows the jet elements 12 arranged therein and the remaining third of the supply air flow through the channels 16 in the base 8 of the housing 4.

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  • 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)

Claims (10)

  1. Évacuation d'air (1), destinée à tempérer une pièce (2), notamment un laboratoire, pourvue d'un boîtier (4) susceptible d'être traversé, présentant une longueur (L) et une largeur (B), qui dispose d'une section transversale d'entrée d'air (10) et d'au moins une section transversale de sortie d'air (14), dans une région de la section transversale d'entrée d'air (10) étant placé un manchon de raccordement (9) pour l'alimentation en air neuf, deux parois latérales (5) mutuellement opposées du boîtier (4) étant munies chacune d'au moins un élément d'injection (12), à travers lequel des jets individuels d'air neuf sont susceptibles d'être distribués par turbulences dans la pièce (2), sur une face inférieure du boîtier (4) étant placée au moins une canalisation (16) qui s'étend dans la direction longitudinale du boîtier (4), via laquelle de l'air neuf est susceptible d'être distribué dans la pièce (2), à l'exception de l'au moins une canalisation (16), la face inférieure du boîtier (4) étant conçue en étant fermée, caractérisée en ce que les parois latérales (5) du boîtier (4) comportant l'au moins un élément d'injection (12) sont perforées et l'au moins une canalisation (16) est placée dans un élément (17) de forme au moins partiellement cylindrique ou dans plusieurs éléments (17) de forme au moins partiellement cylindrique, disposés en rangée, l'au moins une canalisation (16) étant conçue de telle sorte que, considéré dans la direction d'écoulement de l'au moins une canalisation (16) ait lieu un changement de direction, l'au moins un élément (17) ou les plusieurs éléments (17) disposés en rangée étant logés chacun de manière rotative autour de son ou de leur axe longitudinal, à l'intérieur du boîtier (4) étant placé au moins un élément déflecteur d'air (21, 21', 21").
  2. Évacuation (1) selon la revendication 1, caractérisée en ce qu'à l'intérieur du boîtier (4) sont placés au moins un élément déflecteur d'air (21, 21', 21") s'écoulant à l'horizontale et au moins un s'écoulant à la verticale.
  3. Évacuation selon la revendication 2, caractérisée en ce que l'au moins un élément déflecteur d'air (21, 21', 21") est formé d'une tôle perforée.
  4. Évacuation (1) selon l'une quelconque des revendications 1 à 3, caractérisée en ce que deux, trois ou plus de trois canaux (16) s'écoulant à la parallèle les uns des autres sont placés côte à côte.
  5. Évacuation (1) selon l'une quelconque des revendications 1 à 4, caractérisée en ce que les éléments (17) de forme au moins partiellement cylindrique sont logés en étant rotatifs indépendamment les uns des autres.
  6. Évacuation (1) selon l'une quelconque des revendications 1 à 5, caractérisée en ce que la canalisation (16) est conçue dans l'au moins un élément (17) en étant coudée ou curviligne, considérée dans la section transversale de l'élément (17).
  7. Évacuation (1) selon l'une quelconque des revendications 1 à 6, caractérisée en ce que l'au moins un élément d'injection (12) comporte une pluralité de fentes (13) inclinées, formant des sections transversales de sortie d'air, de préférence une inclinaison des fentes (13) individuelle étant respectivement réglable.
  8. Évacuation (1) selon l'une quelconque des revendications 1 à 7, caractérisée en ce que l'au moins un élément d'injection (12) est placé en étant rotatif en tant qu'entité unique dans ou sur la paroi latérale (5) associée à l'élément d'injection (12), de telle sorte que l'inclinaison des fentes (13) soit variable par rotation de l'élément d'injection (12) respectif.
  9. Évacuation (1) selon l'une quelconque des revendications 1 à 8, caractérisée par au moins une rangée (11, 11') d'éléments d'injection (12) écartés les uns des autres dans au moins une paroi latérale (5) du boîtier (4).
  10. Évacuation (1) selon l'une quelconque des revendications 1 à 9, l'évacuation (1) comportant une pluralité d'éléments d'injection (12), caractérisée en ce que des orifices de l'élément d'injection (12) coopèrent chacun avec des éléments déflecteurs, des inclinaisons des éléments déflecteurs de différents éléments d'injection (12) étant différentes.
EP17202716.1A 2016-11-23 2017-11-21 Sortie d'air permettant le reglage de la temperature d'une chambre Active EP3327366B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202016106540.2U DE202016106540U1 (de) 2016-11-23 2016-11-23 Luftauslass zum Temperieren eines Raumes

Publications (2)

Publication Number Publication Date
EP3327366A1 EP3327366A1 (fr) 2018-05-30
EP3327366B1 true EP3327366B1 (fr) 2020-05-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17202716.1A Active EP3327366B1 (fr) 2016-11-23 2017-11-21 Sortie d'air permettant le reglage de la temperature d'une chambre

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EP (1) EP3327366B1 (fr)
AU (1) AU2017265070B2 (fr)
DE (1) DE202016106540U1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201900025D0 (en) * 2019-01-02 2019-02-13 Dyson Technology Ltd A fan assembly
CN110207349B (zh) * 2019-04-26 2020-10-09 西安建筑科技大学 一种针对人员活动区域的多射流耦合区域送风口
DE102020002180A1 (de) 2020-04-04 2021-10-07 Dirk Barnsted System zur belüftung von individuellen arbeitsplätzen zur vermeidung von tröpfcheninfektionen
DE202020001368U1 (de) 2020-04-04 2021-07-06 Dirk Barnstedt System zur Belüftung von individuellen Arbeitsplätzen zur Vermeidung von Tröpfcheninfektionen
DE112020007023A5 (de) 2020-04-04 2023-01-12 Dirk Barnstedt System zur belüftung von individuellen arbeitsplätzen zur vermeidung von tröpfcheninfektionen

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DE2914863C2 (de) * 1979-04-12 1982-12-09 Zumtobel AG, 6850 Dornbirn Luftauslaß zum Einblasen von Zuluft in einen Gebäuderaum
DE9100290U1 (de) * 1991-01-11 1991-04-04 Ltg Lufttechnische Gmbh, 7000 Stuttgart Luftauslaß zum Einblasen von Zuluft in einen Raum
DE19626884C2 (de) * 1996-07-04 2000-07-20 Schako Metallwarenfabrik Luftauslaß
DE102013109702A1 (de) 2013-09-05 2015-03-05 Caverion Deutschland GmbH Luftauslass sowie Verfahren zu dessen Umrüstung
DE202015103138U1 (de) * 2015-06-15 2016-09-19 Caverion Deutschland GmbH Set zur Belüftung eines Raumes

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None *

Also Published As

Publication number Publication date
DE202016106540U1 (de) 2018-03-06
AU2017265070A1 (en) 2018-06-07
EP3327366A1 (fr) 2018-05-30
DE202016106540U8 (de) 2018-07-05
AU2017265070B2 (en) 2021-02-18

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