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WO1987004507A1 - Diffuseur d'air d'entree - Google Patents

Diffuseur d'air d'entree Download PDF

Info

Publication number
WO1987004507A1
WO1987004507A1 PCT/FI1987/000010 FI8700010W WO8704507A1 WO 1987004507 A1 WO1987004507 A1 WO 1987004507A1 FI 8700010 W FI8700010 W FI 8700010W WO 8704507 A1 WO8704507 A1 WO 8704507A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
disperser
ceiling
component
volumetric flow
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.)
Ceased
Application number
PCT/FI1987/000010
Other languages
English (en)
Inventor
Erkki Aalto
Pertti A. Rantanen
Timo Kohtaniemi
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.)
Halton Oy
Original Assignee
Halton Oy
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 Halton Oy filed Critical Halton Oy
Priority to DE8787900820T priority Critical patent/DE3772887D1/de
Publication of WO1987004507A1 publication Critical patent/WO1987004507A1/fr
Priority to NO873871A priority patent/NO164375C/no
Priority to DK497287A priority patent/DK497287A/da
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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

Definitions

  • the present invention concerns a ceiling disperser for intake air which is carried into rooms or equivalent, said disperser comprising at least one intake air duct in which the air flews substantially downward, and a disperser component proper in which the air flows substantially out to the sides, and control and guide means for controlling the air flew from said disperser component.
  • the general objective of the present invention is to provide a simple and reliably operating intake air disperser to be mounted on the ceiling by which it is possible without using any external or extra energy to distribute the intake air in an efficient way causing no draft and no noise, in various instances and situations of application.
  • volumetric flow rate can be ascertained from the outside.
  • the aims of the invention are attained with a ceiling disperser which is mainly characterized in that the control and guide means comprise one or several air deflectors located in the disperser component, outside the centre-line of the intake air duct, and swivelling under effect of the air flew, disposed to change the effective outflow area of the disperser component as the volumetric flow rate changes.
  • the control and guide means comprise one or several air deflectors located in the disperser component, outside the centre-line of the intake air duct, and swivelling under effect of the air flew, disposed to change the effective outflow area of the disperser component as the volumetric flow rate changes.
  • the control means have been arranged to change the throw pattern of the air flow emerging from the ceiling disperser in such a way that the throw length of the air flow is constant within a given volumetric flow rate range.
  • the pressure variation of the flow is applied as control force.
  • the force counteracting the force resulting from the flow is constituted, in an advantageous embodiment of the invention, by the force which is caused by a counterweight on the control plate.
  • the force equilibrium determines the position of the control plate at any time.
  • guidance of the air flows in the ceiling disperser is in four cardinal directions, or sectors, with the aid of four separate guide plates, which move simultaneously and thereby control the travel of air in accordance with the volumetric flow rate.
  • the air entering the room is dispersed as a function of the volumetric flow rate in such manner that at low volumetric flow rates the whole air flew is directed substantially to parallel the ceiling of the room, and at high volumetric flow rates with the aid of the guide plate, or plates, the air flow is directed and controlled to start out partly substantially parallel to the ceiling and also in part obliquely downward.
  • the control means are used to change the profile of the so-called throw pattern in the vertical and horizontal planes while the outside area of the disperser is constant.
  • control plates control the throw profile of the air flow, the impulse and the initial velocity of the air flow from the ceiling disperser and, thereby, at the same time the ultimate velocity of the air flow at desired distance.
  • FIG. 1 is schematically presented an intake air ceiling disperser according to the invention, in elevational view and in section.
  • Fig. 2 is presented the ceiling disperser of Fig. 1, viewed from above along the line II-II in Fig. 1.
  • Fig. 4 is illustrated the operation of the control means of the ceiling disperser of the invention.
  • Figs 5-6 are presented various ways of mounting the control and guide plate.
  • the intake air ceiling disperser depicted in Figs 1 and 2 has been generally indicated with reference numeral 10.
  • the ceiling disperser 10 comprises an intake air duct 11 and a disperser component 12.
  • the number of intake air ducts 11 provided is at least 1.
  • the disperser component 12 comprises, in this embodiment, a first duct section 13 and a second duct section 14.
  • the duct sections 13 and 14 are separated by a partition 15.
  • the control means 16 has been disposed to be located in the disperser component 12 and, advantageously, in its second duct section 14.
  • the control means 16 comprises a control member, e.g. an air deflector 17.
  • To the air deflector 17 is attached a counterweight 18 carried by an arm 19.
  • the arm 19 has been turnably pivoted with the pivot C 1 .
  • the air deflector 17 is further disposed to be turnable about its margin, with the pivot C 2 , and its turning is indicated by the arrow D 1 .
  • the arm 19 together with its counterweight 18 can be turned about the pivot C 1 , thereby changing the moment distance of the counterweight 18 from the pivot axis of the air deflector 17. It is possible by such adjustment of the counterweight to regulate the throw length of the air flowing into the room.
  • the other end of the arm 19 may be formed to be pointed and on the air deflector 17 may be provided an indicator means 20, advantageously a scale on the upper surface of the air deflector 17, on which the various positions of the arm 19 relative to the pivot axis C 2 of the air deflector 17 in the control means 16 can be read.
  • the location of the counterweight 18 on the arm 19 may likewise be adjustable. It is possible to slide the counterweight 18 and fix it in different positions on the control arm 19, whereby the moment distance is accordingly changed.
  • the control means 16 further comprises a volumetric flow rate indicator means 21.
  • the indicator means 21 may consist of a pivoted bar which hangs down freely, e.g. attached to the underside of the air deflector 17.
  • the position of the indicator means 21 relative to the fixed structures, e.g. to the bottom face 22 of the ceiling disperser 10, is readable on a scale provided on the indicator means 21.
  • the air flow coming from the intake air duct 11 of the ceiling disperser 10 tends to deflect the air deflector 17 of the ccntrol means 16.
  • the second duct section 14 of the disperser component 14 will not open, and the whole air flow will pass through the first duct section 13 of the disperser component 12 to one side in the direction P 1 , substantially following the ceiling.
  • a greater deflecting force acts on the air deflector 17 of the control means 16.
  • the air flow is not able to deflect the air deflector 17; instead, the second duct section 14 remains closed.
  • the air deflector 17 of the control means 16 will turn about the pivot C 2 until a new moment equilibrium is reached between the force from the air flew deflecting the air deflector 17 and the counter-moment produced by the counterweight 18.
  • the air deflector 17 opens more and more, and increasingly more air flows through the second duct section 14.
  • the control means 16 thus controls the air flow distribution between the first duct section 13 and the second duct section 14 in accordance with the magnitude of the volumetric flow rate at any moment.
  • Figs 1, 2 and 3 an advantageous apparatus design according to the invention, in which the output duct consists of a first duct section 13 and a second duct section 14, these two being separated by a partition 15.
  • the incoming flow of the ceiling disperser, indicated by L 1 may thus be distributed, depending on the volumetric flow rate, exclusively to the first duct section 13 of the disperser component 12, when the flew is small in amount, as indicated by arrow L 2 , or the incoming flow L 1 may be divided into flows L 2 and L 3 , of which the flow L 3 proceeds in the second duct section 14 when the air deflector 17 of the control means 16 is opened.
  • the throw pattern of the air entering the room from the ceiling disperser 10 is changed.
  • Changing of the throw pattern is here understood to refer to the profile of the air flow in the vertical and horizontal plane, i.e., to the distribution in the room space of the air flow starting out from the ceiling disperser 10.
  • the ceiling disperser 10 of the invention may for instance be dimensioned so that in the extreme range of the throw pattern, that is in that region up to which it is desired that the throw pattern extends, substantially constant ultimate velocity is achieved. This is attained in that as the volumetric flow rate increases, by opening the air deflector 17 a given part of the air flow is directed at least partly obliquely downward.
  • the ceiling disperser 10 of the invention it is possible at all times to adjust the throw pattern and throw length to be as desired.
  • the throw pattern and throw length can be kept such as is desired when the volumetric flow rates vary.
  • the air is directed, as viewed in the horizontal plane, in four cardinal directions P 1 , P 2 , P 3 and P 4 .
  • a specific control means 16 with air deflector 17, counterweight 18 and arm 19.
  • On the underside of the partition 15 may advantageously be provided a separate air-deflecting, adjustable guide 25.
  • the guide 25 has been schematically indicated, and in Fig. 2 likewise one of these guides has been depicted with interrupted lines.
  • the guide 25 comprises an air deflector plate 25a and, on this plate, bendable fixing parts 25b, of which there are advantageously two.
  • the fixing parts 25b are advantageously welded to the underside of the partition 15.
  • the guide 25 can be bent to assume different positions.
  • Fig. 3 is presented another advantageous embodiment of the invention, equivalent to that of Fig. 2.
  • the air deflectors 17 of the control means 16 consist of a circular sector structure.
  • the curved outer peripheries d 1 , d 2 , d 3 and d 4 join in seamless continuity when the duct section 14 is closed.
  • the air deflectors 17 open up similarly as in the embodiment of Figs 1 add 2.
  • a predisperser 26 before the disperser component 12; this predisperser may for instance be a conical structural component. Its task is to direct the flow into the disperser component 12.
  • the ceiling disperser 12 divides the air flow in the horizontal plane among at least four cardinal directions P 1 , P 2 , P 3 and P 4 .
  • the ceiling disperser may equally consist of a design in which in one cardinal direction, for instance in the direction P 1 , has been provided a control arrangement according to the invention in order to obtain the desired throw profile while in the other directions the duct system and control equipment may also consist of conventional designs of prior art.
  • Fig. 4 has more closely been presented the operation of the control means 16 of the invention.
  • the counterweight 18 keeps the air deflector 17 in the position in which it closes the second duct section 14, this position being indicated with e 1 .
  • the flow will then take the direction from the ceiling disperser 10 exclusively through the first duct section 13 of the disperser component 12 and along the ceiling.
  • the reference e 2 has been used to indicate the fully open position of the second duct section 14. The flow now goes through both the first duct section 13 and the second duct section 14.
  • Fig. 4 has more closely been presented the operation of the control means 16 of the invention.
  • FIG. 4 is depicted an embodiment in which the vertical wall 23 and the bottom enclosure 22 both consist of a grating or have been provided with exit apertures.
  • predisperser 26 has been provided, which directs the flow entering the ceiling disperser 10 into the disperser component 12, into its first duct section 13 and second duct section 14.
  • the predisperser 26 may equally consist of a reticular structure.
  • Figs 5-6 have been shown various embodiments of the control means 16.
  • Fig. 5 is shown the pivotal attachment of the air deflector
  • Fig. 6 is depicted the pivotal attachment of the air deflector 17 of the control means 16 to the upper enclosure 24.
  • Increasing volumetric flow rate moves the air deflector 17 out of the position in which it closes the flow path, as indicated by arrow D 3 .
  • the apparatus designs of Figs 5 and 6 are appropriate, for instance, in an embodiment of the invention in which in one or several directions the control means 16 is used to open respectively close only one flow duct, and in which in one direction deflection of the air flow takes place as illustrated by Figs 1-4.
  • the deflector plates 17 are functionally interconnected by the add of the corner parts of the plates so that when one plate is deflected all the other deflector plates 17 thus also are positively deflected. It is therefore also possible to balance several control plates with one counterweight. It is however advantageous in view of stable operation of the ceiling disperser if for each direction of control a specific counterweight

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)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

Diffuseur de plafond pour air d'entrée introduit dans les pièces ou locaux. Le diffuseur (10) de plafond comporte au moins un canal (11) d'entrée d'air et un élément diffuseur (12), ainsi que des moyens de commande pour diriger l'air s'écoulant de l'élément diffuseur (12). Les moyens de commande (16) sont disposés pour diriger l'air d'entrée de manière qu'à des vitesses d'écoulement volumétrique faibles l'air s'écoule du diffuseur de plafond en suivant dans une grande mesure le profil du plafond, alors qu'à des vitesses d'écoulement volumétrique élevées il s'écoule au moins en partie obliquement vers le bas. Les moyens de commande (16) ont été disposés pour modifier le profil d'évacuation de la configuration de l'écoulement d'air sortant du diffuseur de plafond de façon que la longueur de l'écoulement d'air reste à une valeur constante voulue à l'intérieur d'une variation donnée de la vitesse d'écoulement volumétrique.
PCT/FI1987/000010 1986-01-23 1987-01-21 Diffuseur d'air d'entree Ceased WO1987004507A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE8787900820T DE3772887D1 (de) 1986-01-23 1987-01-21 Verteiler fuer ansaugluft.
NO873871A NO164375C (no) 1986-01-23 1987-09-15 Spreder for inntaksluft.
DK497287A DK497287A (da) 1986-01-23 1987-09-22 Loftplaceret luftfordeler til ventilationsanlaeg

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI860333 1986-01-23
FI860333A FI74344C (fi) 1986-01-23 1986-01-23 Utspridare foer ingaongsluft.

Publications (1)

Publication Number Publication Date
WO1987004507A1 true WO1987004507A1 (fr) 1987-07-30

Family

ID=8522019

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1987/000010 Ceased WO1987004507A1 (fr) 1986-01-23 1987-01-21 Diffuseur d'air d'entree

Country Status (6)

Country Link
EP (1) EP0254733B1 (fr)
DE (1) DE3772887D1 (fr)
DK (1) DK497287A (fr)
FI (1) FI74344C (fr)
NO (1) NO164375C (fr)
WO (1) WO1987004507A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5046405A (en) * 1991-01-28 1991-09-10 Michel Roy Air diffuser
DE29816350U1 (de) 1998-09-11 1999-01-21 Baehr, Andreas, 22453 Hamburg Vorrichtung zur Luftableitung aus Luftausgabeeinheiten von Klimaanlagen
WO2003001124A1 (fr) * 2001-06-05 2003-01-03 Acticon Ab Dispositif d'alimentation en air
EP2565548A1 (fr) * 2011-09-05 2013-03-06 Strabag Ag Buse de décharge d'air pour aération à haute pression

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69105947T2 (de) * 1990-01-23 1995-07-20 Jeven Oy Lüftungsanlage.

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2021408A (en) * 1931-10-05 1935-11-19 Feinberg Archie Ventilating system
DE2310147A1 (de) * 1972-03-08 1973-09-13 Danfoss As Lufteinblasmundstueck fuer klimaanlagen
US3865021A (en) * 1972-05-05 1975-02-11 Danfoss As Air injecting apparatus for air conditioners or the like
US4362091A (en) * 1981-04-13 1982-12-07 Mission Marketing Corp. Of Arizona Air deflection duct assembly
DE3139997A1 (de) * 1981-08-18 1983-03-03 Globogal AG, 5600 Lenzburg "zuluftvorrichtung"
DE3241268C1 (de) * 1982-11-09 1984-01-19 Maurmann Ingenieurbüro GmbH, 5628 Heiligenhaus Deckenluftauslaß für Klimaanlagen
SE438199B (sv) * 1978-10-02 1985-04-01 Trox Gmbh Geb Takutslepp for luftkonditioneringsanleggningar
NO154444B (no) * 1981-11-28 1986-06-09 Trox Gmbh Geb Takavloep, saerlig for luftkondisjonerte rom.
SE445485B (sv) * 1984-06-25 1986-06-23 Flaekt Ab Takspridare for tillforsel av ventilationsluft

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2021408A (en) * 1931-10-05 1935-11-19 Feinberg Archie Ventilating system
DE2310147A1 (de) * 1972-03-08 1973-09-13 Danfoss As Lufteinblasmundstueck fuer klimaanlagen
US3865021A (en) * 1972-05-05 1975-02-11 Danfoss As Air injecting apparatus for air conditioners or the like
DE2222060B2 (de) * 1972-05-05 1977-12-01 Ausscheidung aus: 22 64 489 Danfoss A/S, Nordborg (Dänemark) Lufteinblasvorrichtung fuer klimaanlagen o.dgl.
SE438199B (sv) * 1978-10-02 1985-04-01 Trox Gmbh Geb Takutslepp for luftkonditioneringsanleggningar
US4362091A (en) * 1981-04-13 1982-12-07 Mission Marketing Corp. Of Arizona Air deflection duct assembly
DE3139997A1 (de) * 1981-08-18 1983-03-03 Globogal AG, 5600 Lenzburg "zuluftvorrichtung"
NO154444B (no) * 1981-11-28 1986-06-09 Trox Gmbh Geb Takavloep, saerlig for luftkondisjonerte rom.
DE3241268C1 (de) * 1982-11-09 1984-01-19 Maurmann Ingenieurbüro GmbH, 5628 Heiligenhaus Deckenluftauslaß für Klimaanlagen
SE445485B (sv) * 1984-06-25 1986-06-23 Flaekt Ab Takspridare for tillforsel av ventilationsluft

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DERWENT ABSTRACTS No E 6298 B/21, SU 615 325 (Chelyabinsk Poly) 5 June 1978. *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5046405A (en) * 1991-01-28 1991-09-10 Michel Roy Air diffuser
DE29816350U1 (de) 1998-09-11 1999-01-21 Baehr, Andreas, 22453 Hamburg Vorrichtung zur Luftableitung aus Luftausgabeeinheiten von Klimaanlagen
WO2003001124A1 (fr) * 2001-06-05 2003-01-03 Acticon Ab Dispositif d'alimentation en air
EP2565548A1 (fr) * 2011-09-05 2013-03-06 Strabag Ag Buse de décharge d'air pour aération à haute pression

Also Published As

Publication number Publication date
FI74344C (fi) 1988-01-11
FI74344B (fi) 1987-09-30
DK497287D0 (da) 1987-09-22
NO164375C (no) 1992-08-13
DE3772887D1 (de) 1991-10-17
EP0254733A1 (fr) 1988-02-03
NO164375B (no) 1990-06-18
FI860333A0 (fi) 1986-01-23
EP0254733B1 (fr) 1991-09-11
NO873871D0 (no) 1987-09-15
FI860333L (fi) 1987-07-24
DK497287A (da) 1987-09-22
NO873871L (no) 1987-09-15

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