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
  • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
  • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
  • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
• • 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

Definitions

• the present invention concerns an air distribution procedure and an apparatus used in the procedure.
• the temperature of the incoming air is maintained approximately constant and the air quantity is increased or decreased in accordance with changes in loading.
• problems arise because of the thermal forces.
• the incoming ⁇ - AZ means usually operates well but when the air quantity is decreased the injection is not able to arise upwards because of the small starting speed, and it falls down and causes draught.
• the range of the injection remains in general short, whereby the air circulation and well-being are poor.
• the injection range and the starting speed are clearly interrelated. For the injection range to remain approximately constant, the starting speed is required to stay within a given range. Rather, with a small air quantity, the starting speed should grow in order to overcome the thermal counter- forces.
• the object of the invention is a procedure and an apparatus in which the above-mentioned drawbacks have been overcome.
• the procedure of the invention is mainly characterized in that in the procedure a gravity-operated incoming air means is used, with the aid of the guide plate closing by gravity and of a louvre com- ponent whereof the air current is so guided to conform to the wall surface that with small quantities of air the throw length is substan ⁇ tially at least as great as with great air quantities.
• the incoming air means of the invention is mainly characterized in that the incoming air means comprises a guide plate closing by the effect of gravity, said plate in the closed position closing part of the duct section, and in the open position, it is on the surface plane of the guide plate substantially in conformance with the wall surface of the duct section.
• the cool draught can be obstructed from the structures and efficiently reduce the heat loading caused by the sun.
• the heat emittance from said batteries is moreover aided.
• air is carried from outside the staying zone and the air nucleus injection is circulated past the staying zone. Therefore, no draught is caused from the air injection to the staying zone of the room space.
• a longer than normal throw length is available for the air injection without causing 5 any harm to a person staying in said room.
• a united control system of ventilation and heating may also be implemented.
• Fig. 1A the ventilation procedure of the invention is presented 5 schematically and in a first extreme position of the actuating means.
• Fig. IB the procedure of the invention is presented when the "1 adjustment means is moved to a second extreme position.
• FIGs 2A and 2B is presented schematically the operation of the incoming air means.
• Fig. 2A corresponds to the position of the in- c coming air means of Fig. 1A, respectively
• Fig. 2B corresponds to the position of the actuating means of Fig. IB.
• Fig. 3A is presented a section I-I of Fig. 2A, respectively, in Fig. 3B is presented a section II-II of Fig. 2B. 0
• Fig. 4A is presented the embodiment of the invention in which the deviation of a high-speed air current is not implemented with the aid of a louvre, but the air current is directed directly out through the louvre in the direction of the wall surfaces of the distribution 5 chamber.
• Fig. 4B is presented the embodiment of the incoming air means used in the procedure of the invention in which the flow from the distribution chamber is deviated with the aid of the guide surfaces 0 of the slats of the louvre.
• Fig. 5A is presented the embodiment of the incoming air means of the invention in which the member regulating the air flow comprises a separately disposed and disposable component guiding the flow. 5
• Fig. 6 is presented the disposition of the incoming air means in the window sill underneath the window.
• Fig. 1A is presented a cross-section of a room space H.
• the wall surface is indicated by letter S and the floor by L.
• the incoming air flow is carried from an incoming air means 10, the louvre section thereof being disposed in the adjacency of the floor, advantageously on the floor level.
• the incoming air flow is carried upwards from ⁇ j below and conforming to the wall surface S.
• the flow is entered advantageously so that it sweeps the inner surfaces of the window I.
• the flow ascends conforming to the wall S to the adjacency of the ceiling K of the room space and there travels conforming to the c ceiling.
• the flow rate is required to be sufficient in order to pro ⁇ vide circulation for the staying zone of the room space H.
• the quantity of flowing entering the incoming air means 10 through the duct T can be regulated in the room G with ⁇ jc an adjustment means 20.
• an adjustment unit 21 a control message is carried to an adjustment means 22 located in a duct E, said means regulating the volumetric flow of the air flow.
• Fig. IB is indicated an adjustment position of the incoming air 0 means 10 in which through the incoming air means a higher quantity of air is carried into the room space H than in the instance of Fig. 1A.
• the adjustment is performed in the room H with the adjustment means 20.
• the air is moved into the room space H upwards 5 from below and so that the incoming air is disposed to enter the room space H advantageously from an incoming means in the adjacency of the floor.
• An essential feature of the invention is moreover that 1 the incoming air means has been disposed to be located in the ad ⁇ jacency of one wall surface of the room H.
• One or several incoming air means may be placed in the adjacency of said wall surface.
• Figs 2A and 2B the adjustments corresponding to Figs 1A and IB are presented.
• a high-speed air flow L£ is directed, conforming to a wall surface and/or window surface, straight upwards in the room space.
• a respective position of the incoming air means is presented. The air mass is
• the air flow L is made to extend over a sufficient distance using the incoming air means 10 of the invention, the air flow guide plate 14 whereof com ⁇ pressing the air flow and reducing the flow cross-sectional surface in the flow duct 13.
• the guide plate 14 is not intended to shut the
• Fig. 2B is presented a completely open position of the air flow guide plate 14 of the incoming air means.
• the quantity of 20 the air flow is great, and the throw length of the air flow is, nevertheless, equivalent to the instance of small air mass of Fig. 2A.
• Fig. 3A is presented the operational position of Fig. 2A and in 25 Fig. 3B is presented the operational position of the incoming air means of Fig. 2B.
• the discharge of the air flow from the incoming air means 10 is indicated by arrows L2 and L3.
• the air flow is directed to pass, conforming to the wall surface and/or the window surface and/or the battery surface, into 30 the room space H.
• the nuclear injection of the flow does not hit the staying zone of the room space H.
• the air mass is great and the throw length equivalent to the instance shown in Fig. 3A.
• FIG. 4A is presented an embodiment of the ventilation procedure and the incoming air means 10 of the invention in which a high-speed air flow is guided, conforming to the wall 13' of an air duct 13, 1 directly to the adjacency of the wall surface S.
• the central axis X of the duct 13 is, when the means 10 is disposed to be in use, in the direction of the plane of the wall surface S.
• the incoming air means 10 in which a high-speed air flow is guided, conforming to the wall 13' of an air duct 13, 1 directly to the adjacency of the wall surface S.
• the central axis X of the duct 13 is, when the means 10 is disposed to be in use, in the direction of the plane of the wall surface S.
• the incoming air means 10 of the invention in which a high-speed air flow is guided, conforming to the wall 13' of an air duct 13, 1 directly to the adjacency of the wall surface S.
• the central axis X of the duct 13 is,
• a flow duct 13 In the flow duct 13 is disposed a guide plate 14a guiding the air flow, and regulating the air flow, its flow rate and/or quantity of flowing.
• ⁇ JO plate 14 is pivotally carried to turn at one end 14a.
• the guide plate 14 is disposed in the flow duct 13 and it is disposed, when the air flow is not exerting an effect on the guide plate, to be in a position in which it totally shuts the flow duct 13. When the air flow starts to exert an effect on the guide plate 14, it deviates
• ⁇ J5 in the room space and sweeps the window surfaces and/or battery surfaces, and in the latter instance, increases the transfer of heat into the air of the room space H.
• a high-speed air flow induces the air of the room space H to circulate as shown in Figs 1A and IB.
• Fig. 5A is presented an embodiment of the invention in which the guide plate 14 comprises a guide section 15 guiding the flow in oblique position relative to the plane of the guide plate.
• the guiding section 15 guiding the flow has been attached to be separate on the 25 guide plate 14.
• the section 15 may moreover be positioned in various locations of the plate in order to achieve the desired adjustment incident.
• Fig. 5B is presented an embodiment of the invention in which the guide plate 14 comprises a guiding component 15 located in the op ⁇ posite end relative to the turning point 14a of the guide plate 14, 1 said component being a bent part of the plate 14 or a separate part attached to the plate 14.
• the guiding component 15 has been disposed on the end of the air flow guide plate 14 and said part is a bi-metallic part which according c to the temperature bends into a position determined by the tempera ⁇ ture. It is thus possible with said bi-metal component to adjust the air flow also in dependence on the temperature.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Air-Flow Control Members (AREA)
• Duct Arrangements (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8526745

Family Applications (1)

Country Status (3)

Cited By (2)

Citations (2)

• 1988
  • 1988-06-30 FI FI883127A patent/FI80518C/fi not_active IP Right Cessation
• 1989
  • 1989-06-22 EP EP19890907763 patent/EP0379552B1/en not_active Expired - Lifetime
  • 1989-06-22 WO PCT/FI1989/000121 patent/WO1990000241A1/en active IP Right Grant

Patent Citations (2)

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