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EP2917648B1 - Supply air device - Google Patents

Supply air device Download PDF

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Publication number
EP2917648B1
EP2917648B1 EP13846191.8A EP13846191A EP2917648B1 EP 2917648 B1 EP2917648 B1 EP 2917648B1 EP 13846191 A EP13846191 A EP 13846191A EP 2917648 B1 EP2917648 B1 EP 2917648B1
Authority
EP
European Patent Office
Prior art keywords
supply air
air
air device
wall
supply
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
EP13846191.8A
Other languages
German (de)
French (fr)
Other versions
EP2917648A1 (en
EP2917648A4 (en
Inventor
Juha Tourunen
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.)
Eloranta Henna
Original Assignee
Eloranta Henna
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
Priority claimed from FI20126062A external-priority patent/FI124127B/en
Application filed by Eloranta Henna filed Critical Eloranta Henna
Publication of EP2917648A1 publication Critical patent/EP2917648A1/en
Publication of EP2917648A4 publication Critical patent/EP2917648A4/en
Application granted granted Critical
Publication of EP2917648B1 publication Critical patent/EP2917648B1/en
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
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • F24F7/013—Ventilation with forced flow using wall or window fans, displacing air through the wall or window
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/082—Grilles, registers or guards
    • 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
    • F24F2221/18—Details or features not otherwise provided for combined with domestic apparatus

Definitions

  • the object of the present invention is to provide a supply air device, which is composed of a body part having a connection to outdoor air through an outdoor air duct, and which supply air device contains a fan, which blows outdoor air into the room space, and which supply air device includes a return air control system for said room space.
  • Supply air device is used in residential and business buildings to direct outdoor air into the room spaces.
  • Hitherto outdoor air has been directed into the room spaces through a supply air vent with an electrical heater or without any heater.
  • One alternative is a central air-conditioning system, wherein supply air is distributed into the room spaces.
  • the object of the present invention is to provide a supply air device model, which is new and parallel compared with the supply air device presented in the utility model 8413.
  • the supply air device of the present invention is defined in claim 1.
  • Supply air device consists of a body part 1, having a connection to outdoor air through an outdoor air duct 2, and which supply air device contains a fan 3, which blows outdoor air 4 into the room space, and which supply air device includes a return air control system for said room space.
  • Said control system is composed of the height-adjustable legs 6 in between the body part 1 and wall 5. Said height-adjustable legs 6 are plug tabs.
  • Outdoor air duct 2 includes a filter 7.
  • Body part of the supply air device includes an attached lattice 10 having horizontal slats 11, which have grooved cross-section.
  • supply air entering into the room is directed askewly upwards and at the same time causes turbulence with the air already in the room space.
  • the slat 11 has a profile of an obtuse angle, wherein the other leg A is a solid part of the lattice and has a height of 2 - 5 mm, and from which an air deflector slat B, the width of which is 10 - 16 mm, extends at an angle of about 45°.
  • the slit C between the slats 11 is 8 - 12 mm.
  • the device is installed in a dry warm room space on the external wall 5 at least 1.8 m up from the floor. The distance between the ceiling and the top edge of the device is at least 200 mm.
  • a slightly outwardly inclined outdoor air duct 2 is installed into a hole bored through external wall 5.
  • An outdoor lattice 8 will be attached to the open-air side of the outdoor air duct 2.
  • Said outdoor air duct includes a filter 7.
  • Outdoor air duct 2 will be cut onto the lining of the wall 5 and sealed into the wall structure.
  • a clamping frame (not presented in the application) will be installed around the outdoor air duct located on the lining of the wall. The device is attached to the clamping frame, and then equipped with a power cord and connected to a wall plug. Thereafter the device is ready for use.
  • Rear body part of the device includes three plug tabs, which serve as height-adjustable legs 6, by which the distance of the device 1 from the wall 5 can be adjusted.
  • Heating of outdoor air 4 is based on use of the return air, i.e. when the fan 3 is on, outdoor air will flow into the duct and warm room air 9 will flow into the device through a slot between the device and wall. Thus, outdoor air will be warmed by the aid of room air.
  • plug tabs 6 can be adjusted so, that the vent extends 5 - 15 mm from the wall. Standard setting is 10 mm, which operates well in normal circumstances. Especially during winter time it is recommended to use as fast fan speed as possible to provide enough warm room air to heat incoming outdoor air 4.
  • height-adjustable legs 6 can be adjusted to position 0, wherein the device will be tightened against the wall lining 5.
  • the device can also be used as an extraction fan, wherein the blowing direction of the fan is reversed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Description

  • The object of the present invention is to provide a supply air device, which is composed of a body part having a connection to outdoor air through an outdoor air duct, and which supply air device contains a fan, which blows outdoor air into the room space, and which supply air device includes a return air control system for said room space.
  • Supply air device according to the present invention is used in residential and business buildings to direct outdoor air into the room spaces.
  • Hitherto outdoor air has been directed into the room spaces through a supply air vent with an electrical heater or without any heater. One alternative is a central air-conditioning system, wherein supply air is distributed into the room spaces.
  • Supply air vent equipped with a heater consumes a lot of electricity. On the other hand, a vent without a heater causes draught and central air-conditioning system is expensive.
  • US-patent document 3747501A1 and a Finnish utility model No 8413 describe a supply air device known per se according to the pre-amble part of claim 1. By means of this device the above-described problems can be avoided.
  • The object of the present invention is to provide a supply air device model, which is new and parallel compared with the supply air device presented in the utility model 8413. The supply air device of the present invention is defined in claim 1.
  • Different embodiments of the present invention have been defined in the appended dependent claims.
  • Next the invention is described by an example with reference to the accompanying drawings, wherein:
    • Figure 1 illustrates a supply air device installed on the wall, and
    • Figure 2 is a sectional view of slats in a lattice of the air supply device.
  • Supply air device consists of a body part 1, having a connection to outdoor air through an outdoor air duct 2, and which supply air device contains a fan 3, which blows outdoor air 4 into the room space, and which supply air device includes a return air control system for said room space. Said control system is composed of the height-adjustable legs 6 in between the body part 1 and wall 5. Said height-adjustable legs 6 are plug tabs. Outdoor air duct 2 includes a filter 7.
  • Body part of the supply air device includes an attached lattice 10 having horizontal slats 11, which have grooved cross-section. Thus, supply air entering into the room is directed askewly upwards and at the same time causes turbulence with the air already in the room space. In cross-sectional view the slat 11 has a profile of an obtuse angle, wherein the other leg A is a solid part of the lattice and has a height of 2 - 5 mm, and from which an air deflector slat B, the width of which is 10 - 16 mm, extends at an angle of about 45°. The slit C between the slats 11 is 8 - 12 mm.
  • Installation of the supply air device.
  • The device is installed in a dry warm room space on the external wall 5 at least 1.8 m up from the floor. The distance between the ceiling and the top edge of the device is at least 200 mm. A slightly outwardly inclined outdoor air duct 2 is installed into a hole bored through external wall 5. An outdoor lattice 8 will be attached to the open-air side of the outdoor air duct 2. Said outdoor air duct includes a filter 7. Outdoor air duct 2 will be cut onto the lining of the wall 5 and sealed into the wall structure. A clamping frame (not presented in the application) will be installed around the outdoor air duct located on the lining of the wall. The device is attached to the clamping frame, and then equipped with a power cord and connected to a wall plug. Thereafter the device is ready for use.
  • Use of the supply air device.
  • Rear body part of the device includes three plug tabs, which serve as height-adjustable legs 6, by which the distance of the device 1 from the wall 5 can be adjusted. Heating of outdoor air 4 is based on use of the return air, i.e. when the fan 3 is on, outdoor air will flow into the duct and warm room air 9 will flow into the device through a slot between the device and wall. Thus, outdoor air will be warmed by the aid of room air. Depending on the level of negative pressure of the room, plug tabs 6 can be adjusted so, that the vent extends 5 - 15 mm from the wall. Standard setting is 10 mm, which operates well in normal circumstances. Especially during winter time it is recommended to use as fast fan speed as possible to provide enough warm room air to heat incoming outdoor air 4.
  • During summer time, if incoming air is preferred to be taken only from outside, height-adjustable legs 6 can be adjusted to position 0, wherein the device will be tightened against the wall lining 5. As an additional feature, the device can also be used as an extraction fan, wherein the blowing direction of the fan is reversed.

Claims (6)

  1. A supply air device, which is composed of a body part (1) having a connection to outdoor air through an outdoor air duct (2), and which supply air device contains a fan (3), which blows outdoor air (4) into a room space, and which supply air device includes a return air control system for said room space, characterized in that the return air control system is composed of height-adjustable legs (6) in between the body part (1) and a wall (5) in the room space, by which the distance of the device from the wall can be adjusted to control the amount of return air into the device through a slot between the device and the wall.
  2. The supply air device according to claim 1, characterized in that the height-adjustable legs (6) are plug tabs.
  3. The supply air device according to claims 1 or 2, characterized in that the outdoor air duct (2) includes a filter (7).
  4. The supply air device according to claims 1, 2 or 3, wherein the body part includes an attached lattice (10) having horizontal slats (11), characterized in that the slat (11) has a grooved cross-section directing supply air entering into the room askewly upwards and at the same time causing a turbulence with the air already in the room space.
  5. The supply air device according to claim 4, characterized in that in cross-sectional view the slat 11 has a profile of an obtuse angle, wherein the other leg A is a solid part of the lattice and has a height of 2 - 5 mm, and from which an air deflector slat B, the width of which is 10 - 16 mm, extends at an angle of about 45°.
  6. The supply air device according to claims 4 or 5, characterized in that the slit (C) between the slats (11) is 8 - 12 mm.
EP13846191.8A 2012-10-10 2013-08-26 Supply air device Active EP2917648B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20126062A FI124127B (en) 2012-02-03 2012-10-10 Supply air
PCT/FI2013/050821 WO2014057162A1 (en) 2012-10-10 2013-08-26 Supply air device

Publications (3)

Publication Number Publication Date
EP2917648A1 EP2917648A1 (en) 2015-09-16
EP2917648A4 EP2917648A4 (en) 2016-08-24
EP2917648B1 true EP2917648B1 (en) 2021-03-17

Family

ID=50478108

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13846191.8A Active EP2917648B1 (en) 2012-10-10 2013-08-26 Supply air device

Country Status (2)

Country Link
EP (1) EP2917648B1 (en)
WO (1) WO2014057162A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI8413A (en) 1921-02-18 Inrättning för åstadkommande av vattenmärke, vergé eller annan markering på alla slag av papper på en s.k. Yankee mask
US3747501A (en) * 1966-04-19 1973-07-24 O Honda System and method for climate control in greenhouses
GB9613694D0 (en) * 1996-06-29 1996-08-28 Woodcock Kenneth J Fresh air recirculation unit
JP2001221475A (en) * 2000-02-04 2001-08-17 Gemmel Gerd Ventilator
FI8413U1 (en) * 2009-03-27 2009-09-14 Juha Kalevi Tourunen Supply Unit
FI9756U1 (en) * 2011-05-17 2012-08-23 Juha Kalevi Tourunen The heat transfer Blower

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2917648A1 (en) 2015-09-16
EP2917648A4 (en) 2016-08-24
WO2014057162A1 (en) 2014-04-17

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