EP3327366A1 - 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
EP3327366A1
EP3327366A1 EP17202716.1A EP17202716A EP3327366A1 EP 3327366 A1 EP3327366 A1 EP 3327366A1 EP 17202716 A EP17202716 A EP 17202716A EP 3327366 A1 EP3327366 A1 EP 3327366A1
Authority
EP
European Patent Office
Prior art keywords
air
housing
air outlet
channel
elements
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
EP17202716.1A
Other languages
German (de)
English (en)
Other versions
EP3327366B1 (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
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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
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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 having a length and a width, which has an air inlet cross-section and at least one air outlet cross-section, wherein in a region of the air inlet cross-section, a connecting piece for supplying supply air is arranged two opposing side walls of the housing are each provided with at least one jet element through which individual supply air jets are dispensable turbulently in the room, wherein at least one extending in the longitudinal direction of the housing channel is disposed on an underside of the housing, can be delivered via the supply air to the room is, wherein the bottom of the housing is formed apart from the closed channel.
  • Air outlets are known in the art versatile and can meet different requirements. With regard to the tempering of laboratories, a reliable ventilation of certain workplaces is typically required, with a clear cooling being desirable apart from the supply air provided.
  • a device for a laboratory ventilation which is composed of several modules, wherein individual ceiling modules are connected via connection modules.
  • the ceiling modules serve the supply of supply air to certain workplaces and the connection modules as pure connecting elements between two ceiling modules.
  • an air outlet for ventilation of a laboratory known is characterized by the fact that - as described above - supply air is discharged into the room via air outlet openings on two side walls and on a lower side, wherein a heat exchanger module can be arranged in the region of the air outlet openings arranged on the underside. If the known air outlet is equipped with a heat exchanger module, room air is drawn into the heat exchanger via the flow of supply air flowing from the air outlet openings arranged on the underside, where the room air is tempered and returned to the room by means of the flowing supply air.
  • An "unfavorable flow” is characterized in particular by high air velocities which extend along the digestorium, for example in the vertical direction or obliquely to the digestorium.
  • the high flow velocities favor a so-called “flushing" of air from the digestorium into the laboratory. It is understood that such a 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 developing an air outlet for tempering a room so that it is characterized by a high cooling capacity at the same time low-turbulence flow of supply air, which at least reduces a purging of air from a Digestorium.
  • the above object is achieved in that the at least one jet element having side walls of the housing are perforated and the at least one channel in one or more in-line at least partially cylindrical element (s) is arranged, wherein the channel is formed so that viewed in the flow direction of the channel, a change in direction takes place.
  • the at least one element or the plurality of elements in series are each rotatably mounted about its or its longitudinal axis, so that an outflow direction of the air flowing through the channel is variable relative to the air outlet.
  • at least one air guide 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 of the at least one channel and of the at least one radiating element can be controlled is.
  • the at least one air guiding 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 in each case 1/3 of the total supply air volume flow, which is supplied to the air outlet flows through the at least one channel and in each case through the side walls (jet element (s) and perforation) in the space 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 which is as uniformly low as possible. This is of particular importance from the point of view of the comfort of the persons in the ventilating room, and in particular with regard to the scavenging of air from a digestive system.
  • the supply air supplied via the air inlet cross section of the housing leaves the housing via the jet elements arranged in the side walls at a comparatively high speed, that is to say as a turbulent, jet-shaped volume flow. Due to the fact that the side walls of the housing are perforated, a negative pressure which is caused thereby and acts on the side surfaces of the housing causes supply air to be sucked into the room via the perforation. By contrast, the supply air flowing into the room via the perforation of the side walls flows with little turbulence, so that altogether a so-called mixed-source ventilation arises from the turbulent volume jet and the laminar inflowing supply air, which can also be referred to as hybrid ventilation.
  • This design makes it possible to generate relatively high air flow rates, which are required to dissipate the sometimes considerable cooling loads, while at the same time be able to operate at relatively low flow rates, which keep the said risk of rinsing low.
  • the flow velocities are simultaneously raised above the level of pure displacement ventilation, so that a direct "dropping" of the cooled supply air vertically downwards does not occur. The latter usually leads to severe discomfort and uneven temperature distribution in the room to be ventilated.
  • supply air also enters the room via the at least one channel on the underside of the housing, the channel being formed in at least one partially cylindrical element in such a way that a change of direction takes place in the flow direction of the channel.
  • the supply air emerging through the channel is deflected within the channel, wherein the deflection should advantageously be such that the supply air flows out laterally and nestles from below to the housing.
  • This so-called Coanda effect is advantageous because the supply air discharged into the room thus does not flow directly to a workstation, but initially in a horizontal or oblique direction. For this reason, it is possible to provide a highly inductive flow of supply air at the bottom of the housing, which carries a high proportion of room air with it.
  • the adjustment or alignment of the at least one channel can be done manually.
  • a high Zu Kunststoffeintrag so deliver a high volume of supply air in the room, with a total low turbulence supply air present.
  • the combination of a turbulently introduced supply air by means of the at least one jet element and the channel on the one hand and the laminar nachströmenden incoming air on the longitudinal sides of the housing on the other hand causes a total of low-turbulence Zu Kunststoffeintrag in the room, which is perceived as pleasant for people therein and the risk of rinsing reduced by air from a digestive system.
  • At least one horizontal and at least one vertically extending air guide element can be arranged within the housing.
  • the at least one air guide element is formed by a perforated plate.
  • a perforated plate is particularly well suited to distribute by means of a throttling effect achieved by the individual holes of the perforated plate, the supply air lying behind the perforated plate Vorstromschn, from which the supply air passes into the room to be ventilated.
  • the invention advantageously ausgestaltend it is provided that two, three or more than three mutually parallel channels 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 overall tempering performance in order to obtain optimum individual conditions in a room.
  • the at least partially cylindrical elements are rotatably supported independently of each other.
  • adjacent channels have different directions. If the air outlet according to the invention is located in a room center, individual channels can be oriented 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 at the bottom of the housing. Of course, the orientation of the channels can also take place in a common direction.
  • a single channel is arranged in a plurality of at least partly cylindrical elements arranged in series, it is also possible for the individual elements to be set independently of one another in different directions. Thus, a different discharge direction of the resulting channel sections over the length of the entire channel is possible. The adjustment of the discharge direction can be done manually and is easily adapted to individual needs.
  • the channel in the at least one element in the cross-section of the element may, for example, be angled or curved.
  • the at least one jet 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 individual slots are adjustable in their inclination independently. In this way it is possible to fan out the supply air leaving the radiant element. The adjustment of the inclination can be done manually.
  • the at least one jet element as a whole is rotatably arranged in or on the side wall assigned to the jet element, so that an outflow direction of the respective jet element can be changed by turning it.
  • FIG. 1 an inventive air outlet 1 for tempering a room 2 is shown, which is particularly suitable for tempering a laboratory.
  • the FIG. 1 is a view of a longitudinal side 3 of the air outlet 1, a flow-through housing 4 with a length L and a width B ( FIG. 2 ) owns.
  • the housing 4 is cuboid and thus has two longitudinally extending side walls 5 and two transversely extending end walls 6. Further, 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 may be connected to a collecting pipe line to which even more air outlets are connected and which in turn is connected to an air supply.
  • the connection piece 9 can be connected directly to a supply air system.
  • a light cross-section of the connecting piece 9 forms an air inlet cross section 10 in 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 FIG. 1 perforated. Furthermore, the side wall 5 has two superimposed rows 11 of jet elements 12 spaced from one another.
  • the steel elements 12 are formed by round discs, in each of which seven inclined extending air ducts 13 are arranged, wherein in the FIG. 1 only seven individual air outlet cross sections 14 of the air ducts 13 of the jet elements 12 can be seen.
  • the exact design of the air ducts 13 is in connection with the FIG. 2 explained in more detail.
  • the opposite side wall, which in the FIG. 1 is not recognizable, is formed analogously.
  • FIG. 2 is a cross section of the air outlet 1 according to the invention shown, from which, inter alia, the structure of the jet elements 12 emerges.
  • the radiating elements 12 have seven inclined air ducts 13 , of which in the FIG FIG. 2 only three are shown.
  • the air ducts 13 of the upper row 11 of the radiating elements 12 are aligned upward and the air ducts 13 of the lower rows 11 ' of the radiating elements 12 are directed downward.
  • the jet elements 12 can be adjusted manually independently of each other, so that an individual fanning of the supply air into individual supply air jets can be achieved.
  • the air ducts 13 can be aligned both in horizontal and in vertical direction.
  • jet elements 12 with a different number of air channels 13 are conceivable.
  • the perforation 15 of the side walls 5 is in the FIG. 2 recognizable.
  • channels 16 extending parallel to one another in the longitudinal direction of the housing 4 are arranged, which are each incorporated in an at least partially cylindrical element 17 .
  • the channels 16 are arranged centrally in the middle of the bottom 8 of the housing 4 .
  • the elements 17 have in Cross-section opposite walls 18, 18 ' , which extend arcuately or angled, so that a total of an arcuate or angled channel 16 is formed.
  • the elements 17 are rotatably mounted about their longitudinal axis, so that the orientation of the channels 16 therein is adjustable. The adjustment can be made manually, the orientation of the channels 16 being independently adjustable so that they can point in different directions.
  • Fig. 2 all three channels 16 are oriented so that they point to the bottom right. Accordingly, supply air, which flows approximately vertically into the channels 16 , redirected so that the supply air leaves the channels 16 each directed to the bottom right.
  • the inclination of the supply air jet is flat, so that the channels 16 leaving air flows due to the so-called Coanda effect cling to the bottom 8 of the housing 4 and flow along the same.
  • the bottom 8 of the air outlet 1 shown is closed apart from the channels 16 and flat, so formed a straight line.
  • 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 , as far as the end walls 6, or can terminate at a distance from the end walls 6 .
  • the elements 17 may be formed as short pieces and, for example, have a length of about 5 cm to 10 cm, wherein a plurality of elements 17 is arranged in a row.
  • the individual pieces are then also rotatably mounted about their longitudinal axis, which are independent of adjacent pieces of a series adjustable. In this case, a different adjustment of the alignment of the individual elements of a row over the length of the row is possible.
  • the air outlet 1 according to the invention can also be formed with only a single channel 16 or with a number of parallel adjacent channels 16, which is different from three.
  • a chamber 19 is arranged in each case with a width, viewed in the flow direction (arrow 20) , ie from top to bottom, becomes larger. While the Chamber 19 each on a side facing the element 17 has a width b1 , which has approximately the width (or diameter) of the element 17 , the width b2 on a side facing away from the element 17 is smaller. This creates a kind of opposite nozzle effect that slows the reaching into the channels 16 supply air. 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 17th
  • the air guiding elements 21 , 21 ', 21 " are formed by perforated plates, two air guiding elements 21 ', 21 “vertical extend and each are at a distance of about 6 cm to 8 cm from the radiating elements 12.
  • the third air guide 21 extends horizontally and extends between the two vertically extending air guide elements 21 ', 21 ". It has a distance from the bottom 8 of the housing 4 of about 100 mm to 150 mm.
  • the total height H of the housing 4 is about 250 mm to 280 mm.
  • the air guide 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 pre-flow chambers 22, 23, 24 located downstream of the air guide elements 21 , 21 ', 21 "
  • the supply air in the example shown is to be distributed as possible to the Vorstromhuntn 22, 23, 24 that Zu Kunststoffvolumenströme that the air outlet 1 through the channels 16, downwardly as well as through the perforation 15 and the jet elements 12 towards the respective sides, as even as possible, in other words serve the air guide elements 21 , 21 ' , 21 " here in particular to a uniform flow of the jet elements 12, the perforation 15th and the channels 16 to ensure.
  • one third of the supply air is distributed in each case on the two side walls 5 and flows through the radiation elements 12 arranged therein and the remaining third of the supply air flows through the channels 16 in the bottom 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)
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 true EP3327366A1 (fr) 2018-05-30
EP3327366B1 EP3327366B1 (fr) 2020-05-20

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ID=60421633

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
WO2021197521A1 (fr) 2020-04-04 2021-10-07 Dirk Barnstedt Système de ventilation de postes de travail individuels pour éviter des infections par gouttelettes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2914863A1 (de) * 1979-04-12 1980-10-16 Zumtobel Ag Luftauslass zum einblasen von zuluft in einem gebaeuderaum
DE9100290U1 (de) * 1991-01-11 1991-04-04 Ltg Lufttechnische Gmbh, 7000 Stuttgart Luftauslaß zum Einblasen von Zuluft in einen Raum
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19626884C2 (de) * 1996-07-04 2000-07-20 Schako Metallwarenfabrik Luftauslaß

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2914863A1 (de) * 1979-04-12 1980-10-16 Zumtobel Ag Luftauslass zum einblasen von zuluft in einem gebaeuderaum
DE9100290U1 (de) * 1991-01-11 1991-04-04 Ltg Lufttechnische Gmbh, 7000 Stuttgart Luftauslaß zum Einblasen von Zuluft in einen Raum
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

Also Published As

Publication number Publication date
DE202016106540U8 (de) 2018-07-05
DE202016106540U1 (de) 2018-03-06
AU2017265070A1 (en) 2018-06-07
AU2017265070B2 (en) 2021-02-18
EP3327366B1 (fr) 2020-05-20

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