Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
  • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
  • E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
  • E04C2/52—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits
  • E04C2/521—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits serving for locating conduits; for ventilating, heating or cooling
  • E04C2/523—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits serving for locating conduits; for ventilating, heating or cooling for ventilating
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
  • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
  • F24F1/0007—Indoor units, e.g. fan coil units
  • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
  • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
  • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
  • F24F1/0007—Indoor units, e.g. fan coil units
  • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
  • F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
  • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
  • F24F1/0007—Indoor units, e.g. fan coil units
  • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
  • F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters

Definitions

• the present invention relates to an arrangement 5 in connection with an air conditioning unit for large spaces, comprising at least one fan fitted within a casing structure, means for conveying untreated outdoor and indoor air into the casing structure, and distri ⁇ butor means for distributing air into the interior
• Roof-top units are installations in which fans are fitted in a unit placed on the roof of a building, wherefrom air is conveyed through ducts into the building. Several units of this kind may be provided on the roof of the building.
• air conditioning of small spaces is typically realized by means of small-sized room air-conditioning machines and jet and fan convectors which are usually designed to stand freely in the space to be air conditioned and to re- cycle the air within the room.
• the air is treated in some manner, for instance cooled and/or filtered.
• outdoor air may be taken in, but since the air intake is usually low on account of the small size and structural reasons, outdoor air must be taken in through ducts, in order that no dust, gases or other impurities from the earth level may enter into the inlet which is located too low.
• Such machines are known for example from Finnish Patent 30 076 and Fin ⁇ nish application 860635, Figure 3 in the latter ref- cation showing also conventional arrangements for out ⁇ door ducting.
• the advantages of the invention include the fact that all maintenance points are located indoors. It is a further advantage that one avoids using special ele ⁇ ments in roof structures, and the piping, electrical, control and cabling works are moved from the roof to indoors, and the number of inlets through the roof is substantially diminished from that used in the prior art solutions. Still another advantage is the fact that stresses on the roof structures are diminished from those encountered with the prior art solutions.
• a collecting or distributing throw pattern can be simply produced with fan impellers rotating in different directions.
• the combination of various methods of air distribution can be achieved for example in such a manner that carrier jets are induced by a slot or nozzle, and these jets shape the throw pattern.
• the inclined front wall of the air distributor means is advantageous when displacing air distribution is employed.
• the filter may advantageously be in- tegrated with the air distributor means, in which its pressure losses are utilized to equalize the speed dis ⁇ tribution of the air flow.
• the air distributor means is used as a pressure chamber for the impellers, complete mixing of the air flow and a uniform temperat- ure distribution is achieved also in cases where no heating is employed.
• a further advantage of the inven ⁇ tion is that the air distributor means can also be equipped with a 'UNO' blowing surface.
• the arrangement enables the use of heat having a low temperature value, e.g. waste heat of various industrial processes, for heating or cooling.
• the operating point of the impeller is optimized for ins ⁇ tance by altering the blade angle or the diameter of the impeller.
• the power losses en- countered in a belt drive are completely eliminated.
• the arrangement can be sewered in an advantageous manner so that condensed water does not present any problems, as has been stated in the above.
• the support structures for the battery and the suction box for the fan can simul ⁇ taneously serve as water-collecting drains.
• the arrangement also for drying, whereby water is evacuated from the intake air.
• the constructions of the arran ⁇ gement enable all parts of the system to be washed, since water does not present any problems.
• water condensed on the batteries or other parts of the arrangement can be used for cleaning the batteries.
• the overall construction is advantageous, since the piping, control equipment, electrical equipment, ductwork, air distribution, air intake and air treat ⁇ ment are combined in the same construction.
• Figure 1 is a schematic perspective view of a first embodiment of the invention
• Figure 2 is a schematic front view of another embodiment of the invention
• Figure 3 is a schematic sectional side view of the embodiment of Figure 2.
• Figure 1 is a schematic representation of a pre- ferred embodiment of the invention.
• Reference numeral 1 denotes a load bearing vertical column of the building, reference numeral 2 a wall of the building and reference 3 the floor.
• Reference numeral 4 in Fig ⁇ ure 1 denotes fans, three of which are provided in this embodiment.
• Reference numerals 5 and 6 denote registers and reference numerals 7 and 8 heating or cooling bat ⁇ teries.
• Reference numeral 9 denotes generally the dis ⁇ tributor means for distributing air into the interior space.
• the distributor means comprise a slot nozzle 9a and an apertured plate 9b. The passage of air is shown by arrows in Figure 1.
• the arrangement is constructed as a wall- mounted unit and the distributor means 9 for dis ⁇ tributing air into the interior space are integrated in the same unit with the other components of the system below them in the lower part of the unit.
• wall-mounted unit denotes an arrangement mounted to the wall of a building.
• the mounting site may be for ins ⁇ tance the space between the load bearing columns 1 of the building, as shown in Figure 1. It is to be noted that Figure 1 shows only one column 1. Another column is in fact located on the left-hand side of Figure 1, but has not been illustrated.
• the arrangement may even be constructed to form part of the wall of the building to be air conditioned.
• the arrangement can also be advantageously formed such that it is ins- tailed in place from outside the building.
• the installation of the arrangement can naturally also be carried out from inside, even in a case where it forms part of the wall of the building.
• the distributor means 9 are arranged in the same unit, i.e. in the same aggregate with the other parts of the arrangement.
• the arrangement has, among other things, the advantage that lengthy and costly ducting, which was previously often required, is eliminated.
• the distribution of the air which is divided on a broad wall surface directly into the occupied zone is realized as displacing air dis- tribution by means of a simple apertured plate, which can be made inclinable as shown in Figure 1.
• This fea ⁇ ture is advantageous for the air distribution and, fur ⁇ thermore, leaves the floor free.
• the uniformity of the air distribution can be improved by arraying filters immediately in front of the air distribution surface, i.e. the apertured plate 9b. This arraying is also advantageous in view of space consumption. If the unit is located on the floor, air can be conveyed from its lower portion also into the floor beneath, as shown by an arrow in Figure 1.
• several methods of air distribution can be incorporated in the combined construction, such as the slot nozzle 9a shown in Fig ⁇ ure 1 wherewith air is retained in the occupied zone also when heating is employed, in which event the air would otherwise rise towards the roof.
• the nozzle 9a can be provided with a shutting device, and thus the air distribution is as advantageous as possible also when cooling is employed.
• Figures 2 and 3 show another advantageous embodiment of the invention.
• fans are indicated at reference numeral 14.
• Registers are indicated at 15 and 16 and heating or cooling batteries at 17 and 18.
• Distributor means for distributing air into the interior space are denoted generally by reference numeral 19.
• the passage of air is denoted by arrows.
• FIG. 2 and 3 corresponds in its operating principle and manner of installation to the embodiment of Figure 1, that is, the apparatus according to Figures 2 and 3 can be installed between the load bearing vertical columns of the building in the way shown in Figure 1, etc.
• This embodiment is particularly preferred, because the air jet issuing from the unit can be expanded or reduced by making the fans 4 to rotate either in the same direction or in different direc ⁇ tions. This can also be achieved, or the fan effect enhanced, with slot nozzles or rows of nozzles mounted on both sides or on one side of the plate 9b.
• the apparatus and components to be serviced are encased and can be serviced while standing on the floor.
• the batteries and possibly the electric motors can be serviced through separate ser ⁇ vice doors;
• the installation location of the arrange ⁇ ment can be the space between the load bearing columns of the building, which otherwise has no concrete use.
• the dimensions of the casing structure for the arrange ⁇ ment may be in the order of up to 5.4 m in breadth and 1.25 m in depth respectively, the distance between the columns being 6 , and several metres in height.
• the arrangement can be installed in a steel-frame building or in a concrete-frame building.
• the arrangement can be supported to the wall, to the columns or to the roof.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• General Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Processing Of Solid Wastes (AREA)
• Treatment Of Fiber Materials (AREA)
• Cleaning Or Drying Semiconductors (AREA)
• Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
• Ventilation (AREA)
• Structures Of Non-Positive Displacement Pumps (AREA)
• Valves And Accessory Devices For Braking Systems (AREA)
• Telephone Function (AREA)
• Air-Conditioning For Vehicles (AREA)
• Central Air Conditioning (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8536190

Family Applications (1)

Country Status (7)

Cited By (3)

Families Citing this family (1)

Citations (7)

• 1992
  • 1992-11-10 FI FI925105A patent/FI97166C/fi not_active IP Right Cessation
• 1993
  • 1993-11-10 AU AU54228/94A patent/AU5422894A/en not_active Abandoned
  • 1993-11-10 WO PCT/FI1993/000471 patent/WO1994011678A1/en active IP Right Grant
  • 1993-11-10 PT PT93924635T patent/PT667946E/pt unknown
  • 1993-11-10 EP EP93924635A patent/EP0667946B1/en not_active Expired - Lifetime
  • 1993-11-10 AT AT93924635T patent/ATE192227T1/de not_active IP Right Cessation
  • 1993-11-10 DE DE69328491T patent/DE69328491T2/de not_active Expired - Fee Related

Patent Citations (7)

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