Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
  • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
  • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air 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
  • F24F13/0236—Ducting arrangements with ducts including air distributors, e.g. air collecting boxes with at least three openings
• • 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
• • 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
  • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
  • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
  • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
  • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
  • F24F3/048—Systems in which all treatment is given in the central station, i.e. all-air systems with temperature control at constant rate of air-flow
  • F24F3/052—Multiple duct systems, e.g. systems in which hot and cold air are supplied by separate circuits from the central station to mixing chambers in the spaces to be conditioned
• • 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
  • F24F13/30—Arrangement or mounting of heat-exchangers
• • 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

Definitions

• the present invention relates to ventilation and tempering of supply air for residences, properties and other buildings.
• the plenum box comprises at least two dampers, each damper being adapted to control the size of the duct outlets of the air duct to control the supply air temperature in the outlet for supply air.
• the respective dampers are arranged to control the size of the first and second air duct's channel outlet between a first and a second position.
• the channel outlet of the first air duct In the first position, the channel outlet of the first air duct is open and the channel outlet of the second duct is completely closed, and in the second position the channel outlet of the first duct is completely closed and the channel outlet of the second duct is open.
• a damper that is adjustable in this way has the advantage that the pressure drop becomes lower in the system/air supply device, as the damper may thus impact the airflow in both air ducts.
• the plate that is angled achieves a "softer" and no so sharp transition from channel outlet to outlet for supply air at an open position, i.e. this achieves, in a closed position, "free blow" for the air duct which is open.
• the damper is mounted on the separation.
• the advantage of at a damper mounted on the separation is that the ventilation and the tempering of supply air for two or more rooms is realised using an uncomplicated and cheap construction.
• Figure 1A schematically shows a cross-sectional side view of a plenum box in a mode of operation according to an embodiment of the invention.
• Figure IB schematically shows a cross-sectional side view of the plenum box in Figure 1A, in another mode of operation than in Figure 1A, according to an embodiment of the invention.
• Figure 1C schematically shows a cross-sectional side view of the plenum box in Figures 1A and IB, in another mode of operation than in Figures 1A and IB, comprising another design of a damper according to an embodiment of the invention.
• Figure 3B schematically shows a side view of the plenum box in Figure 3A, in another mode of operation, according to an embodiment of the invention.
• the supply air device in Figs. 1A to 3C is intended to ventilate and regulate the temperature of at least two rooms 6, i.e. two or more rooms 6.
• the supply air device comprises a ventilation duct 1, a fan 2, and a plenum box 10 according to the invention, with at least one inlet opening or supply air inlet 13 for supply of air and at least two supply air outlets 14, for letting out supply air, and a casing 11.
• the displayed supply air device is adapted to be fitted at/in a ceiling, e.g. a false ceiling, alternatively in a ceiling or attic spaces/narrow spaces, for example when renovating existing buildings that have limited space.
• the supply air device, i.e. the plenum box according to the invention is not intended to change the size of the airflow between the supply air inlet 13 and the supply air outlet 14, but is intended to primarily temper the air to the various supply air outlets in different ways.
• Figs. 1A-2C shows how the fan 2 presses air into the plenum box 10 according to the invention, via its supply air inlet 13, from the side of the plenum box's casing 11.
• the inlet opening 13 may be arranged on the long and/or short side of the plenum box casing 11.
• FIGS. 3A-3C show how air is pressed into the plenum box 10 according to the invention via its supply air inlet 13 from the top and into the casing 11 of the plenum box (in these Figs. 3A-3C the air could also be pressed into the plenum box casing 11 from the bottom, i.e. from below).
• Figs. 3A-3C show that the air is pressed into the plenum box 10 via its supply air inlet 13, which is located substantially perpendicular or perpendicular to the location of the inlet opening 13 in
• the plenum box 10 is equipped, according to one embodiment of the invention, with two inlet openings 13 (not displayed).
• This embodiment has a first supply air inlet 13 located as illustrated in Figs. 1A-1C and 2B and a second supply air inlet 13 located as illustrated in Figs. 3A-3C.
• This embodiment entails that the two inlet openings 13 extend/are oriented at approximately or exactly 90° to each other, i.e. mainly perpendicularly or nearly perpendicularly or at a perpendicular angle in relation to each other.
• the two inlet openings 13 may be arranged at other angles in relation to each other, e.g.
• Figs. 1A-1C and 2A-2C show the supply air device with its plenum box 10 according to the invention in a cross-section.
• the air flows into the air supply device and its plenum box 10 via the air supply opening 13 after the ventilation duct 1, as the top hollow arrow on the right side in Figs. 1A and IB shows.
• the plenum box 10 according to the invention comprises at least one first and one second air duct 17, 18.
• Incoming airflow is illustrated with two hollow arrows in Figs. 1C and 2B, which arrows extend from the ventilation duct 1 displayed on the right side, and then each turn into an air duct 17, 18 in the plenum box 10, 11 according to the invention. This takes place when the damper 16 is open.
• the plenum box 10 comprises at least two supply air outlets 14, for letting out supply air.
• Each supply air outlet 14 is connected, in terms of airflow, to at least one room 6.
• the respective supply air outlets 14 are arranged to be connected to a room 6, in terms of airflow.
• the air ducts relate to at least one first 17 and one second air duct 18.
• the first and the second air duct 17, 18 has an inlet channel 17A, 18A at a first end.
• the first and the second air duct 17, 18 has an outlet channel 17B, 18B at a second end.
• the inlet channels 17A, 18A are connected to the supply air inlet 13 in terms of airflow.
• the outlet channels 17B, 18B are connected to the at least two supply air outlets 14 in terms of airflow.
• the plenum box 10 according to the invention comprises at least one
• heating/cooling battery 15 for heating and/or cooling of the supply air.
• one or more heating/cooling batteries 15 are arranged in the first air duct 17.
• one or more heating/cooling batteries 15 are arranged in the second air duct 18.
• Fig. 2C shows the plenum box 10, 11 in a cross-section from the top and incoming airflow is illustrated with three black arrows extending through the air inlet 13 (corresponding to air from the ventilation duct 1 and the fan 2 illustrated on the right hand) and into the plenum box 10, 11 through its four different sections I, II, II I, IV (see also Figs. 2A and 2B).
• the four different sections and/or zones I, II, III, IV are illustrated to clarify that the air may be in different conditions/change conditions in different parts of the plenum box 10, 11 on its way through the same. This is a result of e.g.
• the air being led through the section(s) I (where losses may cool the air) and further to the section(s) II (where at least one heating or cooling battery 15 may be located for heating or cooling of the air passing through any of the sections II), following which the air is led further along to the sections III (where losses may cool the air somewhat again) and further out through the air outlet(s) 14 in the plenum box 10, 11 and further to room 6 (see Figs. 1A-1C).
• the pressure may e.g. increase again with additional fans (see Figs. 2A-2C).
• the heating/cooling battery 15 extends over several supply air outlets 14.
• the air outlets 14 are arranged in front of the heating/cooling battery 15.
• the heating/cooling battery 15 has an extension sideways as illustrated in Figs. 2A-2C, the air outlets 14 are also located next to each other in the lateral direction. In this way, different supply air outlets 14 are arranged at different parts of the heating/cooling battery 15.
• the air outlets 14 are located, in terms of airflow, downstream of the heating/cooling battery 15.
• the heating/cooling battery has the same temperature setting throughout its circuit, which means the supply air passing through the heating/cooling battery 15 and into different air outlets is heated/cooled by the same heating/cooling battery 15.
• the location of the air outlets 14 in this manner in relation to the heating/cooling battery 15 creates a pressure drop in the lateral direction in the air flowing through the plenum box 10, which entails that the larger part of the air passes through the heating/cooling battery 15 right in front of the air outlets.
• the air flows in different zones in front of the different air outlets in such a manner that the air flow is at its greatest at each supply air outlet 14.
• the air flow achieved may be likened to there being a separate plenum box at each supply air outlet 14, even though it is a common heating/cooling battery 15.
• the location of the air outlets 14 in relation to the heating/cooling battery 15 thus entails a function that a heating/cooling battery 15 may regulate the temperature of the air to several different air outlets 14, in a manner that is similar to there being one or more separate heating/cooling batteries 15 in front of the respective supply air outlet 14, and/or functioning exactly as though there had been one or several separate/individual heating/cooling batteries 15 in front of the respective supply air outlets 14.
• Each battery 15 corresponds, in other words, to one unit with virtual sections or zones II.
• the battery 15 may in one aspect comprise a combination of at least one or several virtual sections II and/or one or several physically distinct sections II, which sections are thus separate, i.e. their "air environment” and air treatment effect are different and differ from each other in accordance with the invention, even if they are not de facto physically separated but may be so.
• the plenum box 10 has an encapsulation 11 that defines an internal distribution chamber 12.
• the air flows into a first part or section or zone I of the chamber 12 for further air distribution.
• the air flows into the chamber 12 past the first section I, and flows into a second part or section/zone II or several other parts/sections/zones II where at least one cooling/heating battery 15 is arranged.
• At least one part/section/zone II or each part/section/zone II of the plenum box 10 comprises a heating/cooling battery 15.
• the air is heated or cooled down in one or several of these sections/zones II before it is led further to and past a third
• the air is led out through at least two air outlets or air supply devices 14 in the plenum box 10, 11 and past a fourth part/section or several sections IV (the supply air outlet 14 is a part of the fourth section IV) out into one or several rooms 6 via a ventilation channel 1 or without one, i.e. in an embodiment with e.g. a supply air device located directly above the supply air outlet 14 on the external encapsulation 11 of the plenum box.
• a ventilation channel 1 or without one i.e. in an embodiment with e.g. a supply air device located directly above the supply air outlet 14 on the external encapsulation 11 of the plenum box.
• the separation 19 is a separation of the two air ducts 17, 18 which is joint to both ducts. In accordance with the invention, this relates to a plenum box 10, 11 illustrated in Figures 1A to 3C.
• the separation 19 comprises an opening or a hole 19A illustrated with an arrow in Figures 3A-3C.
• This opening 19A leads incoming air, illustrated with a hollow, upper downward-pointing arrow in the figures, into the first air duct 17 if the supply air must be heated or chilled.
• the plenum box 10, illustrated in Figures 3A-3C it comprises two heating/cooling batteries, i.e. one battery 15 on the right side and one battery 15 on the left side in the plenum box.
• the damper 16 may thus be defined as arrow-shaped viewed laterally/in its longitudinal direction/cross- section, with the arrowhead directed towards the arriving airflow.
• the damper's "arrow- shape" may be more or less pointed, but also somewhat rounded, or more or less blunt depending on the enlargement in which the damper 16 is viewed and the intended
• the swivel/rotatable damper is turned with different degrees, depending on the angle of the swivel/rotatable damper 16. If the angle of the swivel/rotatable damper 16 is 90°, the damper is turned 90° to be moved between its two end positions. If the swivel/rotatable damper's 16 angle is greater than 90° the damper 16 needs to be turned less than 90° to be moved between its end positions, and in a corresponding manner the damper 16 needs to be turned more than 90° if the swivel/rotatable damper's 16 angle is smaller than 90°.
• damper/dampers 16 In between there are many different positions of the damper/dampers 16 that can be set, depending on how warm or cold the supply air to the respective room 6 needs to be, and thus different quantities of air pass via the heating/cooling battery/batteries 15.
• an supply air outlet 14, and in some embodiments also a ventilation duct 1 leads to the respective room 6 and at least one damper 16 is located in each supply air outlet 14 and, in certain embodiments on each ventilation duct, there are different temperatures of the supply air in the respective room 6.
• the control parameter or the so-called governing parameter for this ventilation system is, in some embodiments, selected to be the room temperature.
• the desired temperature is set in the regulator 3 available in each room 6.
• the regulator 3 signals to the plenum box 10 with the help of an electric cable 5.
• the plenum box 10 contains an electric motor (not displayed) to turn each damper 16 and readjust its position in the airway.
• the air outlet 14 on the plenum box 10 may be directly connected to the room 6 and thus constitute the supply air device in the room (illustrated in Figs. 3A-3C) or it may be connected to a ventilation duct 1, ending or debouching in the room 6 and in an air supply device 14 in the room
• the temperature of the air to the room 6 is also at a maximum, so that the room may fulfil its heating requirements and ventilation requirements.
• the lamps are lit or some other load exists, heat is automatically supplied from other sources than the ventilation system.
• the damper(s) 16 close the first air duct 17 with the heating battery 15 as the heating load increases in the room, and decreasing amounts of supply air flow is supplied to the room from this first channel, and the second air duct 18 is opened more so that the ventilation requirements regulating to the room 6 are fulfilled anyway.
• the minimum supply air flow that will be supplied to the room will always be an supply air flow so that the ventilation requirement is fulfilled.
• the damper 16 is arranged to close the first air duct 17 by adjusting the airflow opening's size, so that the second air duct 18 is opened, if the temperature of the supply air to the room 6 does not need to be increased or decreased in response to its heating and cooling
• the damper 16 is arranged to close the second air duct 18 and open the first air duct 17 if the temperature of the supply air to the room 6 needs to be increased or decreased in response to its heating and cooling requirement.
• the plenum box 10 in one embodiment comprises at least two heating/cooling
• the plenum box 10 comprises at least one heating or cooling battery 15 and/or at least one section II of a heating or cooling battery for demand-controlled heating and/or cooling of at least a part of the supply air to one or several rooms 6.
• the plenum box 10 comprises at least two supply air outlets 14. Each outlet functions as an supply air duct/device to one of the rooms 6.
• the plenum box 10 comprises, in one embodiment, at least two heating/cooling batteries 15. In another embodiment, each heating/cooling battery is arranged in a separate air duct or the same air ducts 17, 18. In one embodiment, a heating battery 15 is arranged in the first air duct 17 while a cooling battery 15 is arranged in the other air duct 18 or vice versa.
• the heating/cooling battery 15 comprises at least one coiled pipe within which a medium is arranged to circulate.
• the medium may be air, water or a similar fluid suitable for heat exchange, i.e. heating and/or cooling of supply air for room 6.
• the pipes inside the loop are arranged with or have integrated flanges (not illustrated) extending vertically in relation to the plane of the separation 19, i.e. the flanges' plane extension may run at a perpendicular angle in relation to the plane of the separation, as in the separation illustrated in Figs. 1A-1C and 2B and 3A-3C, or extend horizontally in relation to the plane of the separation, i.e.
• the heating/cooling battery 15 may comprise an electric heater.
• the plenum box 10 according to the invention comprises at least one damper 16 with a damper plate angled at an angle of 20° - 120°, preferably at an angle of 40° - 50°, but most preferably at an angle of around 45°.
• the damper's damper plate is then similar to an L with equally long legs when viewed form the side or in a cross-section.
• the damper's 16 damper plate is angled by being bent along its diameter to an angle of 20° - 120°, preferably to an angle of 40° - 50°, but most preferably to an angle of around 45°.
• the damper plate on the damper 16 means the damper is adjustable by achieving an adjustable airflow opening, with which the airflow through either or both of the air ducts 17, 18 and through to the room 6 may be regulated, since the damper plate closes or opens the respective channel outlet 17B or 18B.
• the plenum box 10 according to the invention may be arranged as an integrated part of the air treatment system for a whole building, e.g. a dwelling-house.

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)
• Secondary Cells (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=60787669

Family Applications (1)

Country Status (3)

Citations (6)

Family Cites Families (4)

• 2016
  • 2016-06-30 SE SE1650956A patent/SE542502C2/sv unknown
• 2017
  • 2017-06-27 WO PCT/SE2017/050704 patent/WO2018004432A1/en active Search and Examination
  • 2017-06-27 EP EP17820650.4A patent/EP3479030A4/en active Pending

Patent Citations (6)

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events