WO1998009115A1 - Appareil de refroidissement d'air ambiant - Google Patents

Appareil de refroidissement d'air ambiant Download PDF

Info

Publication number
WO1998009115A1
WO1998009115A1 PCT/SE1997/001396 SE9701396W WO9809115A1 WO 1998009115 A1 WO1998009115 A1 WO 1998009115A1 SE 9701396 W SE9701396 W SE 9701396W WO 9809115 A1 WO9809115 A1 WO 9809115A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
mixing chamber
primary air
room
openings
Prior art date
Application number
PCT/SE1997/001396
Other languages
English (en)
Inventor
Staffan BJÖRKLUND
Original Assignee
Stifab Farex Ab
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 Stifab Farex Ab filed Critical Stifab Farex Ab
Priority to DE69711360T priority Critical patent/DE69711360T2/de
Priority to EP97935989A priority patent/EP0857283B1/fr
Publication of WO1998009115A1 publication Critical patent/WO1998009115A1/fr
Priority to NO19981873A priority patent/NO313772B1/no

Links

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
    • 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
    • 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 an apparatus for cooling indoor air which comprises a horizontally extending primary air duct having essentially vertical long side walls at least one cooling coil for room air and a mixing chamber for primary and room air and openings for the flowing of circulation air into and from the room
  • cooling baffles are advantageuos in comparison with ventilation and air conditioning systems, since they are power saving and do not generate noise nor draught
  • the baffles can also be combined with air ducts lor supply of non-preconditioned primary air
  • Cooling baffles usually consist of a frame of metal profiles These are constructed and attached to a ceiling in such a way that warm room air is admitted to flow vertically in an upwards direction between the panels of the baffle, whereafter this warm air is chilled by cooling elements in the baffle to sink downwards in the baffle as a result of its increased density
  • the baffles provide a self-circulation of the air and a regulation of its temperature inside a room
  • GB-B-101 1742 wherein primary air is supplied perpendicular to the plane of the ceiling
  • WO 94/24491 Finx AB
  • Such baffles primarily use the so called chimney effect by causing warm air to flow upwards and also in those cases when primary air is supplied it is nevertheless the chimney effect which shall be the dominating factor, since primary air only is supplied in order to regulate the flow of air streaming into the room As a consequence there is needed
  • the purpose of the present invention is to provide an apparatus for the cooling of room air which demands a smaller height space for the mounting if compared with prior art apparatuses having a horizontal air output flow, but which provides the same advantages seen from the flow technical point of view.
  • it is of a very essential especial importance in modern buildings, which often have a restricted floor to ceiling height, to be able to offer such an apparus having a lower mounting height but without waiving the flowing path pattern.
  • the invention is characterized by the features which are set forth in the patent claims.
  • the apparatus according to the invention has cooling coils provided with space outside and along one or both of the vertical long side walls of the primary air ducts.
  • a long narrow room is thus formed constituting the mixing chamber for primary air and room air (chilled) between each cooling coil and vertical long side wall of the primary air duct.
  • the mixing chamber is upwards defined by an upper partition wall over a projecting part of the primary air duct, towards the one side by a side partition wall in the form of the vertical long side wall of the primary air duct and towards the other side by the cooling coils. Downwards each mixing chamber has a direct connection to respective opening which in turn has connection to the the room.
  • Each cooling coil has openings provided for an essentially horizontal input air flow from the room and an output flow to the mixing chamber of air cooled in the cooling coil, respectively. Openings for primary air are provided in the upper partition wall between the projecting part of the mixing chamber and corresponding mixing chamber so as to provide an input primary air flow to the mixing chamber being parallel with the side of the mixing chamber facing to the cooling coil and thus also essentially perpendicular to the chilled room air flowing out from the cooling coil and into the mixing chamber.
  • further primary air openings are provided in the vertical partition wall between the primary air duct and the mixing chamber in question.
  • Said further primary air openings are preferably provided obliquely downwards at a height being on the level of the lower part of the duct.
  • the openings in the vertical partition wall consist preferably of spray nozzles being adjustable to give a variable amount and/or direction of the primary air
  • the primary air openings provided in the upper partition wall preferably are spray nozzles located with a space of 12-50 mm along the entire length of the cooling apparatus.
  • the cooling apparatus has the cooling coils located vertically with the circulation air openings provided on their sides as opposed to the conventionally location at the top of the coils.
  • the cooling apparatuses of the actual art normally are designed to provide a chimney effect cooperating and coacting with the induction effect caused by the primary air supply.
  • the induction i.e. the ejector effect which may be caused by means of the supplied primary air flow
  • the air distribution paths through the apparatus by providing a minimized circulation air duct, i.e. the mixing chamber, an optimal air flow without any swirls and with the lowest pressure drop being possissible in practice is obtained.
  • the primary primary air flow which means the flow into the circulation air duct from above, i.e. the mixing chamber room, as described in the above adjustable spraying nozzles may be provided further down in the vertical partition wall of the circulation air duct and more close to the lower part of the primary air duct
  • These spray nozzles are primarily used for such regulation of the air which give an essentially horizontal output air flow along the ceiling of the room, but these nozzles may also be utilized for supplying additional primary air if a large primary air flow is requested.
  • Figure 1 is a sketch showing the principle of the apparatus seen from a side section in a longitudianal direction
  • Figure 2 is a sketch illustrating the principle function of an adjustable spray nozzle provided in the apparatus according to a preferred embodiment
  • FIG. 1 there is shown a cooling apparatus or baffle, here designated 10, according to the invention
  • the cooling baffle 10 cosists of a primary air duct 1 1 and on each side thereof are provided cooling coils 12 Due to local requests or demands the baffle 10 may in certain cases be designed with a cooling coil 12 only at one of the sides of the primary air duct 1 1
  • a mixing chamber 13 also called circulation air duct, which is defined by an upper partition wall 14, here extending horizontally, a vertically extending partition wall 15 to the primary air duct and the vertical, inwardly directed output flow part 16 of the cooling coil 12
  • the circulation air duct end in an obliquely downwardly directed outflow air flow duct 17 along the ceiling 18 of the room below the baffle 10
  • openings are in a preferred embodiment spraying nozzles mounted at a certain predetermined mutual distance.
  • a second set of primary air openings 20 mounted in an obliquely downwardly direction, and being in the form of adjustable spraying nozzles having their upper and lower air flowing guiding profiles 20A and 20B, respectively.
  • Each cooling coil 12 has a number of cooling pipes 21 for water, provided perpendicular to the through-flowing air 22 being supplied through input flow openings 23
  • Figure 2 shows a spray nozzle 20 seen in a section parallel with the vertical partition wall 15
  • the figure shows the nozzle 20 in its neutral position 30 and in its end positions 31 and 32, respectively In the neutral position 30 it is possible to turn the nozzle 20 towards both of the directions as indicated by a double arrow 33 and the air flows straight downwardly as indicated by an arrow 34
  • the primary air is by such turning directed to the left and right, respectively, as indicated by the arrows 35 and 36, respectively
  • the one end of the upper flow guiding profile 20A is shown as a continuous line and the end of the lower profile 20B is shown as a broken line

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Central Air Conditioning (AREA)
  • Duct Arrangements (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Glass Compositions (AREA)

Abstract

Cet appareil de refroidissement d'air ambiant comprend un conduit d'air primaire (11), s'étendant horizontalement et présentant des parois latérales longues et essentiellement verticales (15), au moins un refroidisseur tubulaire (12) destiné à l'air ambiant, une chambre de mélange (13) d'air primaire et d'air ambiant, ainsi que des ouvertures (17, 23) destinées à l'écoulement de l'air entrant dans la pièce et sortant de celle-ci. Cet appareil est caractérisé en ce que l'on a ménagé un espace à l'extérieur des refroidisseurs tubulaires (12 et le long de l'une ou des deux parois latérales verticales (15) du conduit d'air primaire (11), formant ainsi une chambre étroite et longue (13) constituant la chambre de mélange, laquelle est délimitée sur le haut par une cloison supérieure (14) située au-dessus d'une partie saillante du conduit (11), sur un côté par la paroi latérale verticale (15) de conduit (11) et sur l'autre côté par le refroidisseur tubulaire (12), et sur le bas est en communication directe avec lesdites ouvertures (17, 23), lesquelles communiquent à leur tour avec la pièce. Chaque refroidisseur tubulaire (12) présente des ouvertures (22, 16) respectivement conçues pour que le flux d'air entrant à partir de la pièce soit essentiellement horizontal, et que le flux d'air sortant, refroidi dans le refroidisseur tubulaire (12), soit dirigé vers la chambre de mélange (13). Des ouvertures (19) destinées à l'air primaire sont ménagées dans la cloison supérieure (14) entre la portion du conduit d'air primaire (11) saillant au-dessus de la chambre de mélange (13) et la chambre de mélange (13), de façon à permettre qu'une entrée de flux d'air primaire, dirigé vers la chambre de mélange (13), soit parallèle au côté de cette chambre (13) situé en face du refroidisseur tubulaire (12) et soit également, par voie de conséquence, sensiblement perpendiculaire au flux d'air ambiant refroidi s'écoulant hors du refroidisseur tubulaire (12) pour se diriger dans la chambre de mélange (13).
PCT/SE1997/001396 1996-08-26 1997-08-25 Appareil de refroidissement d'air ambiant WO1998009115A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69711360T DE69711360T2 (de) 1996-08-26 1997-08-25 Vorrichtung zum kühlen von raumluft
EP97935989A EP0857283B1 (fr) 1996-08-26 1997-08-25 Appareil de refroidissement d'air ambiant
NO19981873A NO313772B1 (no) 1996-08-26 1998-04-24 Innretning for kjöling av inneluft

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9603070-5 1996-08-26
SE9603070A SE516349C2 (sv) 1996-08-26 1996-08-26 Anordning för kylning av rumsluft

Publications (1)

Publication Number Publication Date
WO1998009115A1 true WO1998009115A1 (fr) 1998-03-05

Family

ID=20403642

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1997/001396 WO1998009115A1 (fr) 1996-08-26 1997-08-25 Appareil de refroidissement d'air ambiant

Country Status (5)

Country Link
EP (1) EP0857283B1 (fr)
DE (1) DE69711360T2 (fr)
NO (1) NO313772B1 (fr)
SE (1) SE516349C2 (fr)
WO (1) WO1998009115A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000028263A1 (fr) * 1998-11-05 2000-05-18 Teknoterm Climate Ab Appareil de climatisation
WO2000045094A1 (fr) * 1999-01-26 2000-08-03 Stifab Farex Ab Dispositif de montage au plafond pour ventilation de locaux et refroidissement ou rechauffage simultane de l'air des locaux
EP0967443A3 (fr) * 1998-06-23 2000-09-27 Stifab Farex AB Dispositif pour le refroidissement de l'air d'un local
EP0967444A3 (fr) * 1998-06-23 2000-09-27 Stifab Farex AB Dispositif pour la ventilation, le refroidissement et /ou le chauffage de locaux
FR2817330A1 (fr) * 2000-11-24 2002-05-31 Halton Oy Dispositif terminal d'amenee d'air d'alimentation pour la climatisatiojn de locaux
US7000688B2 (en) 2000-11-24 2006-02-21 Halton Oy Supply air terminal device
WO2014135406A1 (fr) * 2013-03-05 2014-09-12 W Properties Climatiseur
WO2015107550A2 (fr) 2014-01-16 2015-07-23 Desiccant Rotors International Private Ltd. Unité de terminal d'air d'apport d'induction présentant un rapport d'induction d'air accru et procédé de fourniture d'un rapport d'induction d'air accru
WO2018013394A3 (fr) * 2016-07-14 2018-02-08 General Electric Company Échangeur de chaleur à entraînement
NO20181398A1 (no) * 2018-10-31 2020-05-01 Trox Auranor Norge As Kjølebaffel

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI119127B (fi) * 2002-06-28 2008-07-31 Halton Oy Tuloilmalaite
FI122286B (fi) 2006-01-16 2011-11-15 Halton Oy Tuloilmalaite ja menetelmä ilmavirtausmäärän säädössä

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1347152A (fr) * 1961-10-03 1963-12-27 Marelli & C Spa Ercole Appareil de conditionnement d'air à induction et de distribution d'air pour des cenceintes
GB1274540A (en) * 1969-11-14 1972-05-17 Hendrik Jacobus Spoormaker Improvements in air conditioning and in air conditioning terminal units therefor
GB1468754A (en) * 1973-06-02 1977-03-30 Ltg Lufttechnische Gmbh Air conditioning apparatus
DE3321612A1 (de) * 1983-06-15 1984-12-20 Howaldtswerke-Deutsche Werft Ag Hamburg Und Kiel, 2300 Kiel Klimageraet
FI89409B (fi) * 1991-05-08 1993-06-15 Ilmateollisuus Oy Ventilationsfoerfarande och ventilationsanordning
GB2271175A (en) * 1992-09-25 1994-04-06 Halton Oy Space air heating or cooling device
WO1994024491A1 (fr) * 1993-04-14 1994-10-27 Stifab Farex Ab Appareil de refroidissement d'air ambiant

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1347152A (fr) * 1961-10-03 1963-12-27 Marelli & C Spa Ercole Appareil de conditionnement d'air à induction et de distribution d'air pour des cenceintes
GB1274540A (en) * 1969-11-14 1972-05-17 Hendrik Jacobus Spoormaker Improvements in air conditioning and in air conditioning terminal units therefor
GB1468754A (en) * 1973-06-02 1977-03-30 Ltg Lufttechnische Gmbh Air conditioning apparatus
DE3321612A1 (de) * 1983-06-15 1984-12-20 Howaldtswerke-Deutsche Werft Ag Hamburg Und Kiel, 2300 Kiel Klimageraet
FI89409B (fi) * 1991-05-08 1993-06-15 Ilmateollisuus Oy Ventilationsfoerfarande och ventilationsanordning
GB2271175A (en) * 1992-09-25 1994-04-06 Halton Oy Space air heating or cooling device
WO1994024491A1 (fr) * 1993-04-14 1994-10-27 Stifab Farex Ab Appareil de refroidissement d'air ambiant

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0967443A3 (fr) * 1998-06-23 2000-09-27 Stifab Farex AB Dispositif pour le refroidissement de l'air d'un local
EP0967444A3 (fr) * 1998-06-23 2000-09-27 Stifab Farex AB Dispositif pour la ventilation, le refroidissement et /ou le chauffage de locaux
US6520247B2 (en) 1998-11-05 2003-02-18 Teknoterm Climate Ab Airconditioning device
WO2000028263A1 (fr) * 1998-11-05 2000-05-18 Teknoterm Climate Ab Appareil de climatisation
WO2000045094A1 (fr) * 1999-01-26 2000-08-03 Stifab Farex Ab Dispositif de montage au plafond pour ventilation de locaux et refroidissement ou rechauffage simultane de l'air des locaux
US7000688B2 (en) 2000-11-24 2006-02-21 Halton Oy Supply air terminal device
BE1014488A5 (fr) * 2000-11-24 2003-11-04 Halton Oy Bouche de fourniture d'air.
US6715538B2 (en) 2000-11-24 2004-04-06 Halton Oy Supply air terminal device
FR2817330A1 (fr) * 2000-11-24 2002-05-31 Halton Oy Dispositif terminal d'amenee d'air d'alimentation pour la climatisatiojn de locaux
CN105026850A (zh) * 2013-03-05 2015-11-04 W资产私人有限公司 空调机组
WO2014135406A1 (fr) * 2013-03-05 2014-09-12 W Properties Climatiseur
BE1021395B1 (fr) * 2013-03-05 2015-11-16 W Properties Sprl Climatiseur
CN105026850B (zh) * 2013-03-05 2019-02-12 模度空气股份有限公司 空调机组
WO2015107550A2 (fr) 2014-01-16 2015-07-23 Desiccant Rotors International Private Ltd. Unité de terminal d'air d'apport d'induction présentant un rapport d'induction d'air accru et procédé de fourniture d'un rapport d'induction d'air accru
WO2015107550A3 (fr) * 2014-01-16 2015-09-03 Desiccant Rotors International Private Ltd. Unité de terminal d'air d'apport d'induction présentant un rapport d'induction d'air accru et procédé de fourniture d'un rapport d'induction d'air accru
WO2018013394A3 (fr) * 2016-07-14 2018-02-08 General Electric Company Échangeur de chaleur à entraînement
US11168951B2 (en) 2016-07-14 2021-11-09 General Electric Company Entrainment heat exchanger
NO20181398A1 (no) * 2018-10-31 2020-05-01 Trox Auranor Norge As Kjølebaffel
NO345103B1 (no) * 2018-10-31 2020-09-28 Trox Auranor Norge As Kjølebaffel

Also Published As

Publication number Publication date
EP0857283A1 (fr) 1998-08-12
SE9603070D0 (sv) 1996-08-26
DE69711360D1 (de) 2002-05-02
NO313772B1 (no) 2002-11-25
SE9603070L (sv) 1998-02-27
SE516349C2 (sv) 2001-12-17
NO981873L (no) 1998-06-25
NO981873D0 (no) 1998-04-24
DE69711360T2 (de) 2002-11-07
EP0857283B1 (fr) 2002-03-27

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