EP2199700A1 - Supply air device - Google Patents

Supply air device Download PDF

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Publication number
EP2199700A1
EP2199700A1 EP09178298A EP09178298A EP2199700A1 EP 2199700 A1 EP2199700 A1 EP 2199700A1 EP 09178298 A EP09178298 A EP 09178298A EP 09178298 A EP09178298 A EP 09178298A EP 2199700 A1 EP2199700 A1 EP 2199700A1
Authority
EP
European Patent Office
Prior art keywords
supply air
air device
apertures
guide nozzles
nozzles
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.)
Withdrawn
Application number
EP09178298A
Other languages
German (de)
French (fr)
Inventor
Tommi Uksila
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.)
RC-Linja Oy
Original Assignee
RC-Linja 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 RC-Linja Oy filed Critical RC-Linja Oy
Priority to DE202009018153U priority Critical patent/DE202009018153U1/en
Publication of EP2199700A1 publication Critical patent/EP2199700A1/en
Withdrawn legal-status Critical Current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
    • F24F13/068—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as perforated walls, ceilings or floors
    • 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
    • F24F2013/0612—Induction nozzles without swirl means

Definitions

  • This invention relates to a supply air device. More specifically, it concerns a supply air device, having an elongated body and being at least partially perforated over its external surface.
  • Typical applications include slot diffusers, tray diffusers, swirl diffusers, and diffusers provided with jet nozzles.
  • Supply air devices of the above type can be used for bringing overheated air down to the public area, for example in shopping malls, indoor sports arenas, and industrial facilities.
  • the shortcomings of swirl diffusers and tray diffusers include the breadth of a blow pattern generated by the diffusers and the inability to redirect the blow pattern during the life cycle of a ventilation system. Such a need to modify ventilation may come up for example in the process of redoing a shop layout.
  • the slot diffuser establishes a narrow blow pattern and a long casting distance.
  • the narrow blow pattern is particularly important when overheated air is delivered for example into a space between chest freezers in a shop. In the event that the blow pattern of a supply air device spreads out, the warm air flow falls on chest freezers, resulting in frosting, ice-forming, and unnecessary energy consumption.
  • the blow pattern of slot diffusers involves the same problem as swirl and tray diffusers, i.e.
  • blow patterns thereof cannot be changed.
  • the shop layout undergoes several changes during its life cycle, and a situation is often encountered in which the supply air devices are located unfavorably, for example with respect to the location of chest freezers.
  • a solution to the problem has been sought by outfitting the premises with jet diffusers, whereby the blow pattern can be redirected as desired.
  • a drawback with jet diffusers is, however, the inability thereof to provide a long casting distance or a narrow blow pattern.
  • This object can be achieved according to the invention by means of a supply air device, having an elongated body and having its bottom perforated and at least some of the apertures fitted with jet nozzles.
  • the supply air device according to the invention is characterized by what is defined in the characterizing clause of the appended independent claim 1.
  • Fig. 1 shows an elongated supply air device 1 in a side view.
  • the supply air device 1 consists of an elongated body 2, whose first end 3 is attachable to a ventilation duct (not shown in the figure) by way of a joint 4.
  • a second end 5 of the supply air device 1 is perforated and thereby the ventilation duct air is delivered into a space surrounding the supply air device.
  • Fig. 2 shows the perforated second end 5 of the supply air device 1.
  • the guide nozzles 7 can be stationary, but from the standpoint of adjustability and versatility it is preferred that at least some of the guide nozzles 7 be adjustable for enabling their blowing direction to be changed. Positioning the adjustable guide nozzles 7 along or in the vicinity of a periphery of the end 5 enables influencing, by changing their blow direction, also the direction of an air flow coming through the ordinary apertures 6. Thus, the entire air flow coming out of the end surface can be pointed in a desired direction and the blow pattern shaped as desired.
  • the aperture system 6 is only sketched over a segment of the end surface, but the extent of aperture system is arbitrarily optional and so is the disposition and number of the guide nozzles 7.
  • the direction of an air flow coming from the guide nozzles 7 can be adjusted freely both by rotating the guide nozzle in the plane of a mounting surface and by a relative change of alignment in the direction of a mounting surface diagonal. This enables pointing the air flow in any direction from the plane of the surface.
  • the guide nozzles 7 shown in fig. 2 are only designed to be mutable in the mounting plane, whereby the direction of a flow pattern established by one guide nozzle changes as determined by the lateral face of a cone.
  • the diverse guide nozzles 7 according to the prior art are always capable of establishing a desired direction of flow.
  • the guide nozzles are preferably made in plastics, thus being easy to press with their engagement tabs into the apertures 6 provided therefor and to pivot in a desired direction.
  • the directionally adjustable guide nozzles 7 can be installed directly as such in the aperture 6 of the supply air device 1 or are installed in a separate adapter element (not shown in the figure) made of an elastic material, which also seals the resulting joint.
  • the blow pattern can be changed and adjusted as desired also by covering some of the apertures 6 or the guide nozzles 7 by fitting the same with plugs 9. Thereby, even during a ventilation cycle working at a reduced performance, it is possible to obtain a sufficiently extensive and effective blow pattern in a ventilated space. By plugging some of the apertures 6 or the guide nozzles 7, it is also possible to make a difference in the obtained blow pattern. Likewise, varying the size and shape of the apertures 6 and the guide nozzles 7 enables obtaining a versatile blow pattern. If desired, the guide nozzles 7 can be replaced for example with another model for influencing the amount of air coming through the guide nozzles. Likewise, the ordinary apertures 6 can be fitted with discs 10 of a washer type, which reduce the size of an original aperture and diminish the throughput of air.
  • the terminal 1 can have its blow pattern adjusted precisely to a desired size and length by changing the ventilation performance or by opening/closing some of the apertures 6 by means of the plugs 9, as well as by directing and shaping the blow pattern by means of the guide nozzles 7.
  • Fig. 2 shows an elongated supply air device 1 circular in cross-section, but it should be appreciated that the supply air device can have an arbitrarily optional cross-section, being for example a square, a rectangle, a triangle, an ellipse, or any other such geometric shape.
  • the apertures 6 may come in various shapes and even the guide nozzles 7 can be shaped for example like polygons, thus being directed in a stepwise manner.
  • Fig. 3 shows the supply air device 1 more precisely in a side view.
  • the supply air device 1 has also a side surface 11 of its body 2 at least partially covered with apertures.
  • the apertures 6 can be equipped with air directing fixed or mutable guide nozzles 7.
  • the air flow regulation can be conducted by means of plugging both some of the apertures 6 and some of the guide nozzles 7 or by downsizing the aperture system.
  • the side aperture system can also be closed completely, whereby the entire air flow can be delivered out of the end 5 of a supply air device.
  • Fig. 3 shows an aperture 6 and guide nozzles 7 for visualizing the same in just a specific area of the side surface 11, but the number of disposition thereof can be selected freely as required by necessary ventilation.
  • the air flow discharging from the end 5 of the supply air device 1 can also be influenced by the guide nozzles 7 mounted on the side surface 11 of the supply air device, which are capable of controlling the direction of a flow coming by way of the end.

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)
  • Nozzles (AREA)

Abstract

The invention relates to a supply air device (1), comprising an elongated body (2), said body (2) having its first end (3) connected to a supply air duct, and the body (2) has its second end (5) provided with apertures (6), at least some of said apertures (6) being fitted with guide nozzles (7).

Description

  • This invention relates to a supply air device. More specifically, it concerns a supply air device, having an elongated body and being at least partially perforated over its external surface.
  • For the ventilation of high-ceilinged spaces, in which the overheated air is brought down, exist a wide range of supply air devices. Typical applications include slot diffusers, tray diffusers, swirl diffusers, and diffusers provided with jet nozzles. Supply air devices of the above type can be used for bringing overheated air down to the public area, for example in shopping malls, indoor sports arenas, and industrial facilities.
  • The shortcomings of swirl diffusers and tray diffusers include the breadth of a blow pattern generated by the diffusers and the inability to redirect the blow pattern during the life cycle of a ventilation system. Such a need to modify ventilation may come up for example in the process of redoing a shop layout. The slot diffuser establishes a narrow blow pattern and a long casting distance. The narrow blow pattern is particularly important when overheated air is delivered for example into a space between chest freezers in a shop. In the event that the blow pattern of a supply air device spreads out, the warm air flow falls on chest freezers, resulting in frosting, ice-forming, and unnecessary energy consumption. The blow pattern of slot diffusers involves the same problem as swirl and tray diffusers, i.e. the blow patterns thereof cannot be changed. The shop layout undergoes several changes during its life cycle, and a situation is often encountered in which the supply air devices are located unfavorably, for example with respect to the location of chest freezers. A solution to the problem has been sought by outfitting the premises with jet diffusers, whereby the blow pattern can be redirected as desired. A drawback with jet diffusers is, however, the inability thereof to provide a long casting distance or a narrow blow pattern.
  • It is an object of the invention to bring forth an improvement for the foregoing drawbacks and to provide a versatile supply air device, having in combination a narrow blow pattern and a capability of redirecting the blow pattern. This object can be achieved according to the invention by means of a supply air device, having an elongated body and having its bottom perforated and at least some of the apertures fitted with jet nozzles. The supply air device according to the invention is characterized by what is defined in the characterizing clause of the appended independent claim 1.
  • The invention will now be described more precisely with reference to the accompanying drawings, in which
    • fig. 1 shows an elongated supply air device in a simplified side view,
    • fig. 2 shows a perforated end of the elongated supply air device, and
    • fig. 3 shows a more detailed side view of the supply air device.
  • Fig. 1 shows an elongated supply air device 1 in a side view. The supply air device 1 consists of an elongated body 2, whose first end 3 is attachable to a ventilation duct (not shown in the figure) by way of a joint 4. A second end 5 of the supply air device 1 is perforated and thereby the ventilation duct air is delivered into a space surrounding the supply air device.
  • Fig. 2 shows the perforated second end 5 of the supply air device 1. In order to direct the supply air coming from a ventilation duct, at least some of apertures 6 are provided with guide nozzles 7. The guide nozzles 7 can be stationary, but from the standpoint of adjustability and versatility it is preferred that at least some of the guide nozzles 7 be adjustable for enabling their blowing direction to be changed. Positioning the adjustable guide nozzles 7 along or in the vicinity of a periphery of the end 5 enables influencing, by changing their blow direction, also the direction of an air flow coming through the ordinary apertures 6. Thus, the entire air flow coming out of the end surface can be pointed in a desired direction and the blow pattern shaped as desired. The air flow discharges from the guide nozzles 7 in the direction of arrows 8. In fig. 2, the aperture system 6 is only sketched over a segment of the end surface, but the extent of aperture system is arbitrarily optional and so is the disposition and number of the guide nozzles 7.
  • The direction of an air flow coming from the guide nozzles 7 can be adjusted freely both by rotating the guide nozzle in the plane of a mounting surface and by a relative change of alignment in the direction of a mounting surface diagonal. This enables pointing the air flow in any direction from the plane of the surface. The guide nozzles 7 shown in fig. 2 are only designed to be mutable in the mounting plane, whereby the direction of a flow pattern established by one guide nozzle changes as determined by the lateral face of a cone. The diverse guide nozzles 7 according to the prior art are always capable of establishing a desired direction of flow. The guide nozzles are preferably made in plastics, thus being easy to press with their engagement tabs into the apertures 6 provided therefor and to pivot in a desired direction. The directionally adjustable guide nozzles 7 can be installed directly as such in the aperture 6 of the supply air device 1 or are installed in a separate adapter element (not shown in the figure) made of an elastic material, which also seals the resulting joint.
  • The blow pattern can be changed and adjusted as desired also by covering some of the apertures 6 or the guide nozzles 7 by fitting the same with plugs 9. Thereby, even during a ventilation cycle working at a reduced performance, it is possible to obtain a sufficiently extensive and effective blow pattern in a ventilated space. By plugging some of the apertures 6 or the guide nozzles 7, it is also possible to make a difference in the obtained blow pattern. Likewise, varying the size and shape of the apertures 6 and the guide nozzles 7 enables obtaining a versatile blow pattern. If desired, the guide nozzles 7 can be replaced for example with another model for influencing the amount of air coming through the guide nozzles. Likewise, the ordinary apertures 6 can be fitted with discs 10 of a washer type, which reduce the size of an original aperture and diminish the throughput of air.
  • As described above, there is provided quite a versatile ventilation terminal 1, which lends itself particularly well to the controlled ventilation of high-ceilinged spaces. The terminal 1 can have its blow pattern adjusted precisely to a desired size and length by changing the ventilation performance or by opening/closing some of the apertures 6 by means of the plugs 9, as well as by directing and shaping the blow pattern by means of the guide nozzles 7.
  • Fig. 2 shows an elongated supply air device 1 circular in cross-section, but it should be appreciated that the supply air device can have an arbitrarily optional cross-section, being for example a square, a rectangle, a triangle, an ellipse, or any other such geometric shape. Likewise, the apertures 6 may come in various shapes and even the guide nozzles 7 can be shaped for example like polygons, thus being directed in a stepwise manner.
  • Fig. 3 shows the supply air device 1 more precisely in a side view. According to one embodiment of the invention, the supply air device 1 has also a side surface 11 of its body 2 at least partially covered with apertures. Identically to the end 5, at least some of the apertures 6 can be equipped with air directing fixed or mutable guide nozzles 7. Likewise, the air flow regulation can be conducted by means of plugging both some of the apertures 6 and some of the guide nozzles 7 or by downsizing the aperture system. The side aperture system can also be closed completely, whereby the entire air flow can be delivered out of the end 5 of a supply air device. The same way, it is possible to close the aperture system 6 and the guide nozzles 7 at the end 5 of a supply air device, thus developing a blow pattern solely by way of the aperture system and/or guide nozzles of the side surface 11. By closing some of the apertures in the side surface 11 and by redirecting some of the guide nozzles 7 in the side surface, a desired type of blow pattern and blow strength are obtained in lateral direction. Of course, the power of blow can also be influenced by changing the performances of a ventilation machine.
  • Fig. 3 shows an aperture 6 and guide nozzles 7 for visualizing the same in just a specific area of the side surface 11, but the number of disposition thereof can be selected freely as required by necessary ventilation.
  • The air flow discharging from the end 5 of the supply air device 1 can also be influenced by the guide nozzles 7 mounted on the side surface 11 of the supply air device, which are capable of controlling the direction of a flow coming by way of the end.
  • Described above are just a few preferred embodiments for a ventilation terminal of the invention. It is nevertheless understood that the presented examples are by no means limitative to the invention, but the scope of protection shall be determined in accordance with a scope of protection as defined by the appended claims.

Claims (8)

  1. A supply air device (1), comprising an elongated body (2), said body (2) having its first end (3) connected to a supply air duct, characterized in that the body (2) has its second end (5) provided with apertures (6), and that at least some of the apertures (6) are fitted with guide nozzles (7).
  2. A supply air device (1) according to claim 1, characterized in that at least some of guide nozzles (7) are mutable.
  3. A supply air device (1) according to claim 1, characterized in that the elongated body (2) has at least a section of its side surface (11) provided with apertures (6)
  4. A supply air device (1) according to claim 3, characterized in that the body (2) has at least some of the apertures (6) in its side surface (11) fitted with guide nozzles (7).
  5. A supply air device (1) according to claim 4, characterized in that at least some of the guide nozzles (7) in the side surface (11) of the body (2) are mutable.
  6. A supply air device (1) according to claim 1, characterized in that the supply air device (1) is connected to a ventilation duct terminating in a ceiling or wall.
  7. A supply air device (1) according to claim 1 or 4, characterized in that the guide nozzles (7) are replaceable.
  8. A supply air device (1) according to claim 1 or 3, characterized in that the apertures (6) are coverable either completely with plugs (9) or partially with washer type elements (10).
EP09178298A 2008-12-10 2009-12-08 Supply air device Withdrawn EP2199700A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE202009018153U DE202009018153U1 (en) 2008-12-10 2009-12-08 incoming air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20086182A FI20086182A7 (en) 2008-12-10 2008-12-10 Supply air device

Publications (1)

Publication Number Publication Date
EP2199700A1 true EP2199700A1 (en) 2010-06-23

Family

ID=40240580

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09178298A Withdrawn EP2199700A1 (en) 2008-12-10 2009-12-08 Supply air device

Country Status (4)

Country Link
EP (1) EP2199700A1 (en)
DE (1) DE202009018153U1 (en)
FI (1) FI20086182A7 (en)
RU (1) RU2009145032A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102287832A (en) * 2011-06-14 2011-12-21 刘谦 Air inlet device at bottom of incinerator
IL261187B1 (en) * 2018-08-15 2024-01-01 Twito Israel A kit for modular assembling of a device for angular routing of air flow in air conditioning systems, that enable adaptation in accordance with a given opening
SE2400014A1 (en) * 2024-02-05 2025-05-20 Qleanair Scandinavia Ab Exhaust nozzle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3025342A1 (en) * 1980-07-04 1982-01-28 Enig Energieberatung Innovation Gmbh, 6300 Giessen Air conditioning system for factory halls - has main and auxiliary air outlets in vertical arrangement, some discharging horizontally and some obliquely
DE3021356A1 (en) * 1980-06-06 1982-03-25 Enig Energieberatung Innovation Gmbh, 6300 Giessen Room air-conditioning equipment - has air discharge unit with vertical and horizontal outlets and separate outlets at ceiling
EP0639744A2 (en) * 1993-08-20 1995-02-22 Lukas Dipl.-Ing. Renz Air distributor
EP0924474A2 (en) * 1997-12-20 1999-06-23 Adam Bernhardt Air outlet for a ventilation system
CH692062A5 (en) * 1995-12-01 2002-01-15 Hesco Klima Schweiz Ag Device for distribution of input air in air-conditioned room has apertures for throughflow for air provided in flat wall of air outlet housing
DE10212293A1 (en) * 2002-03-20 2003-10-09 Fritz Juergen Eidmann Air outlet for a wall mounting has an assembly housing to connect to an air control channel, a twisting outlet in the housing with guide vanes and a ring of nozzles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3021356A1 (en) * 1980-06-06 1982-03-25 Enig Energieberatung Innovation Gmbh, 6300 Giessen Room air-conditioning equipment - has air discharge unit with vertical and horizontal outlets and separate outlets at ceiling
DE3025342A1 (en) * 1980-07-04 1982-01-28 Enig Energieberatung Innovation Gmbh, 6300 Giessen Air conditioning system for factory halls - has main and auxiliary air outlets in vertical arrangement, some discharging horizontally and some obliquely
EP0639744A2 (en) * 1993-08-20 1995-02-22 Lukas Dipl.-Ing. Renz Air distributor
CH692062A5 (en) * 1995-12-01 2002-01-15 Hesco Klima Schweiz Ag Device for distribution of input air in air-conditioned room has apertures for throughflow for air provided in flat wall of air outlet housing
EP0924474A2 (en) * 1997-12-20 1999-06-23 Adam Bernhardt Air outlet for a ventilation system
DE10212293A1 (en) * 2002-03-20 2003-10-09 Fritz Juergen Eidmann Air outlet for a wall mounting has an assembly housing to connect to an air control channel, a twisting outlet in the housing with guide vanes and a ring of nozzles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102287832A (en) * 2011-06-14 2011-12-21 刘谦 Air inlet device at bottom of incinerator
IL261187B1 (en) * 2018-08-15 2024-01-01 Twito Israel A kit for modular assembling of a device for angular routing of air flow in air conditioning systems, that enable adaptation in accordance with a given opening
IL261187B2 (en) * 2018-08-15 2024-05-01 Twito Israel A kit for modular assembling of a device for angular routing of air flow in air conditioning systems, that enable adaptation in accordance with a given opening
SE2400014A1 (en) * 2024-02-05 2025-05-20 Qleanair Scandinavia Ab Exhaust nozzle
SE547188C2 (en) * 2024-02-05 2025-05-20 Qleanair Scandinavia Ab Exhaust nozzle

Also Published As

Publication number Publication date
DE202009018153U1 (en) 2011-03-24
FI20086182A0 (en) 2008-12-10
RU2009145032A (en) 2011-06-20
FI20086182L (en) 2010-06-11
FI20086182A7 (en) 2010-06-11

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