EP3587943B1 - Device for ventilating and controlling the temperature of a room of a building - Google Patents

Description

Introduction

• eine unterhalb einer Decke des Raums anzuordnend Trägerplatte,
• einen oberhalb der Trägerplatte angeordneten und einen von Luft durchströmbaren Innenraum sowie einen eine Längsachse aufweisenden Luftverteilkanal,
• einen mindestens einen Lufteintrittsquerschnitt aufweisenden Luftanschlusskasten zur Verbindung der Vorrichtung mit einem Luftversorgungssystem,
• eine Mehrzahl von oberhalb der Trägerplatte angeordneten und wärmeleitend mit dieser verbundenen Fluidleitungen,

wobei der Luftverteilkanal mit einer Mehrzahl von in Längsrichtung des Luftverteilkanals verteilt angeordneten Düsen versehen ist, mittels derer Luft aus dem Innenraum des Luftverteilkanals oberhalb der Trägerplatte in den Raum einbringbar und über Oberseiten der Fluidleitungen leitbar ist.The invention relates to a device for ventilating and tempering a room in a building, comprising

• a support plate to be arranged below a ceiling of the room,
• an interior space arranged above the carrier plate and through which air can flow, as well as an air distribution channel having a longitudinal axis,
• an air connection box having at least one air inlet cross-section for connecting the device to an air supply system,
• a plurality of fluid lines arranged above the carrier plate and connected to it in a heat-conducting manner,

wherein the air distribution channel is provided with a plurality of nozzles arranged distributed in the longitudinal direction of the air distribution channel, by means of which air can be introduced from the interior of the air distribution channel above the carrier plate into the space and can be guided over the upper sides of the fluid lines.

State of the art

Numerous devices are known for air conditioning rooms, in particular ceiling panels with fluid lines on the top. In order to effectively increase the cooling or heating performance, the fluid lines in the known systems are supplied with supply air along both their top and bottom.

In the EN 10 2010 001 319 A1 For example, a combination of an air outlet with a ceiling panel and fluid lines running on it is disclosed, in which the air outlet has an interior with a guide element so that the supply air is deflected by about 180°. The supply air leaves the air outlet and flows along the underside of the ceiling panel. In order to also use the top of the fluid lines, the air outlet has nozzles whose air outlet surface is positioned approximately at the level of the fluid lines. Due to the deflection the supply air inside the air outlet, it is possible to design the known device with a low height, which is desired for optical reasons or space reasons.

The known device is not suitable for any desired flexibility in the direction of the supply air blowing out, as the flow of the supply air is always the same. However, particularly in high rooms, it may be necessary to impose a different direction on the supply air flowing beneath the ceiling sail.

From the EN 10 2011 084 423 A1 A cooling ceiling is known that is intended to use the heat storage capacity of a structural ceiling to regulate the temperature of the room air. The known cooling ceiling extends over the entire floor plan of the room and has defined openings so that room air can enter the space between the cooling ceiling and the structural ceiling. The aim is to ensure that the air flow in the space can be directed over as many heat exchanger elements as possible so that the energy absorption by the heat transfer medium in the heat exchanger elements acts on the circulating air flow for as long as possible and removes the heat from it.

Task

Accordingly, it is an object of the present invention to further develop a known device for ventilating and tempering a room in a building in such a way that, despite its low construction height, it is particularly suitable for high rooms.

Solution

Starting from the device mentioned at the outset, this object is achieved by providing a device with the features of claim 1.

According to the present invention, "essentially completely within the interior of the air distribution duct" is to be understood as meaning that the slot outlet is either located completely within the interior or that a small percentage of its height protrudes below a lower boundary line of the interior. A maximum of 10% of the height of the slot outlet protrudes above the interior of the air distribution duct.

The arrangement of the slot outlet in the interior of the air distribution duct is atypical, as there could be a fear that this would disrupt the flow within the air distribution duct. For this reason, in the prior art, slot outlets are always arranged separately so that disruptive interactions between the individual components are avoided. During the development of the present invention, however, it has been shown that disruption of the flow of the supply air within the air distribution duct is negligible, although care must still be taken to ensure that there is sufficient free space above the slot outlet to ensure that the supply air flows effectively and appropriately over the entire length of the air distribution duct and slot outlet. The slot outlet should advantageously only extend over a height within the interior that corresponds to a maximum of 2/3 of the height of the interior, more preferably a maximum of ½ of the height of the interior.

Due to the arrangement of the slot outlet within the air distribution duct, the overall height of the device is significantly reduced. The arrangement of the slot outlet also offers the advantage that the supply air flows further into the room than is the case with the prior art, so that the device according to the invention is also suitable for high rooms.

Due to the low installation height of the unit formed by the air distribution duct and the slot outlet, it is possible that the former is not or hardly perceptible to people in the room, which is particularly optically advantageous.

According to an advantageous embodiment of the device according to the invention, a height of the air connection box is greater than a height of the air distribution duct. The air connection box serves to connect the device according to the invention to an air supply system, wherein a cross-section of the air connection box is typically many times smaller than a cross-section of the air distribution duct. In order to be able to supply the air distribution duct sufficiently with supply air, it is advantageous if the air connection box has a sufficient volume, the latter being achieved via a high height of the It is also advantageous if the air connection box is arranged in a central area of the support plate so that it is also hardly noticeable from the room.

With regard to the flow conditions within the device, it is advantageous if the overhang of the crossbeams, by means of which the device can be suspended from the ceiling, over the top of the carrier plate facing the ceiling is smaller than the height of the upstand. The carrier plate can be suspended using crossbeams that run in the transverse direction of the carrier plate, i.e. parallel to the air duct. They can run across the entire width of the carrier plate or can also be designed as short pieces. For example, a crossbeam can consist of a U-shaped profile. Other cross-sections of the crossbeams are of course possible. If there is a distance between the overhang of the crossbeams, which in the above example would be formed by the legs of the profile, and the carrier plate, the supply air can flow freely and undisturbed over the carrier plate and in particular the fluid lines located on it. Consequently, the clear distance between the overhang of the crossbeams and the top of the carrier plate facing the ceiling should be at least larger than the diameter of the fluid lines.

In this context, it is helpful if a nozzle connection axis connecting the central axes of the nozzles and running in the outlet planes of the nozzles is arranged above the fluid lines and below the cross members.

In addition, it is also advantageous if the nozzle connection axis runs centrally in a space between the cross members and the fluid lines. This allows supply air to flow over the fluid lines without disruption and optimizes the effectiveness of the device.

An advantageous development of the invention provides that the slot outlet has an air inlet area facing away from the carrier plate and a deflection area facing the carrier plate, in which the air can be deflected in an exit direction approximately parallel to the carrier plate. This ensures that the supply air leaving the slot outlet flows along an underside of the carrier plate facing the room and is tempered there by the fluid lines. The cooling or heating performance of the device according to the invention is increased in this way.

With regard to the deflection area described above, it is also advantageous if the deflection area is provided with an adjustment element with which the exit direction is changeable. Preferably, the adjustment element is a roller body that can be rotated about its longitudinal axis and is provided with a curved passageway for air. The adjustment element makes it possible to adapt the device to changing climatic conditions in the room and to set it individually. The supply air leaving the slot outlet can also be directed to certain areas in the room, which are then supplied directly with supply air. The slot outlet allows the supply air to flow far into the room, so that work areas can be illuminated even in rooms with great heights.

If the air distribution duct extends to opposite edges of the support plate, the available space on the support plate is used to the maximum for the introduction of supply air.

A particularly advantageous embodiment of the device according to the invention provides that the nozzles are arranged in a row running parallel to the carrier plate, each at a distance from one another, with the row being exposed in the area of the air connection box. The nozzles are used to flow around the fluid lines above and to temper the supply air. The recess of the nozzles in the area of the air connection box makes it possible to dimension the air inlet cross-section of the air connection box, which can be formed by a connection piece, for example, so that it protrudes into the air distribution duct. This is again advantageous for sufficient feeding of the air distribution duct via the air connection box.

Example:

The invention described above is explained in more detail below using an embodiment shown in the figures.

Figur 1:

einen Vertikalschnitt durch eine erfindungsgemäße Vorrichtung zur Belüftung und Temperierung eines Raumes,

Figur 2:

eine dreidimensionale Ansicht auf die Vorrichtung gemäß Figur 1 und

Figur 3:

einen Vertikalschnitt durch den Schlitzauslass der Figur 1.

It shows:

Figure 1:

a vertical section through a device according to the invention for ventilation and temperature control of a room,

Figure 2:

a three-dimensional view of the device according to Figure 1 and

Figure 3:

a vertical section through the slot outlet of the Figure 1 .

In the Figure 1 a device 1 according to the invention for ventilating a room 2 of a building is shown, whereby only a ceiling 3 of a building can be seen. Below the ceiling 3 runs a support plate 4, which is attached to the ceiling 3 of the Room 2 and aligned parallel to the ceiling 3. In order to obtain a good overview of the device 1, a right-hand section of the same has been omitted. The device 1 shown here is mirror-symmetrical and has an axis of symmetry 6 in the Figure 1 All four edges 7 of the carrier plate 4 each have a 90° upstand 8, whereby the upstand 8 has a height 9 of 50 mm. In the example shown, the upstand is L-shaped. Alternatively, a U-shaped upstand is possible.

Fluid lines 10 run above the carrier plate 4 and are connected to the carrier plate 4 in a heat-conducting manner.

Furthermore, an air distribution duct 11 is arranged on the carrier plate 4, which rests on the carrier plate 4 with a lower side. The air distribution duct 11 is rectangular in cross-section and delimits an interior space 12, which is supplied with air by means of an air connection box 13. For this purpose, the air connection box 13 is connected to an air supply system (not shown in the figure) via an air inlet cross-section 14. The air inlet cross-section 14 is formed by an air connection nozzle 15. It is understood that a joint between the air distribution duct 11 and the air connection box 13 is open and thus an air inlet cross-section 16 is present in the air distribution duct 11.

The device 1 according to the invention has a length 17 and a width 18 which corresponds to the dimensions of the carrier plate 4. This is evident from the Figure 2 A height 19 of the air distribution duct 11 corresponds to the height 9 of the upstand 8 of the carrier plate 4.

The air distribution channel 11 has a plurality of nozzles 21 on two opposite and vertically aligned side walls 20, which are arranged distributed over the length of the side walls 19, in the present case in a row. The nozzles 21 are mounted at a height such that their air outlet cross-section 22 runs above the fluid lines 10. The supply air introduced through the nozzles 21 is thus guided along the upper sides 23 of the fluid lines 10 and tempered.

It can also be seen that the fastening means 5 holds a crossbar 24 on the side facing the device 1, which runs between the upstand 8 and two opposite long sides of the carrier plate 4. The crossbar 24 is U-shaped, with two legs forming a projection 25 that is smaller than the height 9 of the upstand 8. In the present case, the legs have a length of 17.5 mm, so that there is a gap 26 between the carrier plate 4 and the crossbar 24, i.e. a clear distance of 32.5 mm. The supply air exiting from the nozzles 21 therefore runs below the cross member 24 and can flow there unhindered.

On the in the Figure 1 The air connection nozzle 15 is arranged on the right side of the air connection box 13, the cross section of which extends into the area of the nozzles 21. No nozzles are positioned in the area of the air connection box 13, which Figure 2 The large dimensioning of the air connection piece 15 ensures that the air distribution duct 11 is adequately supplied with fresh air. The height 41 of the air connection box 13 is greater than the height 19 of the air distribution duct 11.

A slot outlet 27 is arranged in the interior 12 of the air distribution duct 11, which extends parallel to the air distribution duct 11 and whose underside is flush with the underside of the air distribution duct 11. The slot outlet 27 is positioned in the middle of the air distribution duct 11 when viewed in cross-section and has a height 28 that corresponds to half the height 19 of the air distribution duct 11. This leaves sufficient space above the slot outlet 27 so that the supply air can flow into the slot outlet 27 on the one hand and above the slot outlet 27 to both rows of nozzles on the other. The slot outlet 27 therefore has an air inlet area 29 facing away from the carrier plate 4.

The slot outlet 27, which is in the Figure 3 shown in detail, has a plurality of longitudinally arranged adjustment elements 30, each in the form of a roller body 31, which are rotatably mounted about their longitudinal axis. Viewed in cross section, each roller body 31 has a curved passage channel 32 for air, which forms a deflection area 33 for the supply air. In the Figure 1 the roller body 31 shown is positioned so that the supply air leaves the slot outlet 27 in an exit direction approximately parallel to the carrier plate 4. The adjustment element 30 has a wall 24 on the outer circumference, by means of which the air inlet area 29 of the slot outlet 27 can be closed. To do this, the adjustment element 30 only has to be rotated accordingly. Furthermore, the adjustment element 30 can also be brought into a position in which the passage channel 32 is aligned so that the supply air leaves the slot outlet 27 diagonally or vertically into the room 2. In this way, the supply air can be directed far into the room 2 and, if necessary, flow directly to a workplace.

According to an embodiment of the present invention, it is also conceivable that the slot outlet protrudes a small amount from the interior of the air distribution duct. If the slot outlet is designed according to the above description, the adjustment element could, for example, protrude from the interior by 2 to 4 mm.

The supply air introduced into the room is in the Figure 1 shown with arrows 35, 36, 37, 38, 39. Starting from an air supply system (not shown), the supply air (arrow 35) passes through the connection piece into the air distribution duct, where the supply air is distributed between the nozzles (arrows 36) and the slot outlet (arrow 37). On the one hand, the supply air flows above the fluid lines (arrow 38) and on the other hand below the fluid lines (arrow 39).

In the Figure 2 the device 1 according to the invention is shown in a three-dimensional view, whereby the front area has been omitted for reasons of clarity. The course of the cross members 24, the air distribution channel 11 and the nozzle row is shown in the Figure 2 clearly visible, as well as the central positioning of the air connection box 13 with its air connection nozzle 15. The longitudinal axis 40 of the air distribution duct is also shown.

As previously explained, the Figure 3 the slot outlet 27 according to Figure 1 in detail and has already been described above.

List of reference symbols:

1

device

2

Space

3

Ceiling

4

Carrier plate

5

Fasteners

6

Axis of symmetry

7

edge

8

Upstand

9

Height

10

Fluid line

11

Air distribution duct

12

Interior

13

Air connection box

14

Air inlet cross-section

15

Air connection nozzle

16

Air inlet cross-section

17

length

18

Width

19

Height of the air distribution box

20

Side wall

21

nozzle

22

Air outlet cross-section of the nozzle

23

Top of the fluid line

24

traverse

25

Overhang

26

Space

27

Slot outlet

28

Height of slot outlet

29

Air inlet area

30

Adjustment element

31

Roller body

32

Passage channel

33

Deflection area

34

Wall

35 to 39

Arrow

40

Longitudinal axis air distribution duct

41

Height of the air connection box

Claims (9)

1. A device (1) for ventilating and controlling the temperature of a room (2) of a building, comprising

   - a carrier plate (4) to be arranged underneath a ceiling (3) of the room (2),

   - an interior space (12), which is arranged above the carrier plate (4) and through which air can flow, as well as an air distribution channel (11) having a longitudinal axis (40),

   - an air connection box (13) having at least one air inlet cross section (14) for connecting the device (1) to an air supply system,

   - a plurality of fluid lines (10), which are arranged above the carrier plate (4) and connected thereto in a thermally conducting manner,

   wherein the air distribution channel (11) is provided with a plurality of nozzles (21), which are distributed in the longitudinal direction of the air distribution channel (11), and wherein air from the interior space (12) of the air distribution channel (11) above the carrier plate (4) can be introduced into the room (2) and conveyed over upper sides (23) of the fluid lines (10) by means of said nozzles, characterized by a slot outlet (27) extending parallel to the air distribution channel (11), wherein air from the interior space (12) of the air distribution channel (11) above the carrier plate (4) can be introduced into the room (2) by means of said slot outlet, wherein the slot outlet (27) essentially is located completely within the interior space (12) of the air distribution channel (11), wherein the carrier plate (4) is respectively provided with an upturn (8), which points in the direction of the ceiling (3), at least on two opposing edges that are oriented perpendicular to the longitudinal axis (40) of the air distribution channel (11), wherein the device (1) is designed mirror-symmetrically in a vertical section and has an axis of symmetry (6), wherein a longitudinal axis (40) of the air distribution channel (11) extends perpendicular to the axis of symmetry (6), and wherein the air distribution channel (11) is provided with the plurality of nozzles (21), which are distributed in the longitudinal direction of the air distribution channel (11), on two opposing sidewalls.
2. The device according to claim 1, characterized in that a height (41) of the air connection box (13) is greater than a height (19) of the air distribution channel (11).
3. The device according to one of claims 1 or 2, characterized in that a protrusion (25) of crossbeams (24), by means of which the device (1) can be suspended on the ceiling (3), beyond an upper side of the carrier plate (4) facing the ceiling (3) is smaller than a height (9) of the upturn (8).
4. The device according to claim 3, characterized in that a nozzle connecting axis, which connects center axes of the nozzles (21) and extends in outlet planes of the nozzles (21), is arranged above the fluid lines (10) and underneath the crossbeams (24).
5. The device according to claim 4, characterized in that the nozzle connecting axis extends centrally in an intermediate space (26) between the crossbeams (24) and the fluid lines (10).
6. The device according to one of claims 1 to 5, characterized in that the slot outlet (27) has an air inlet region (29), which faces away from the carrier plate (4), and a deflection region (33), which faces the carrier plate (4) and in which the air can be deflected into an outlet direction extending approximately parallel to the carrier plate (4).
7. The device according to claim 6, characterized in that the deflection region (33) is provided with an adjusting element (30), by means of which the outlet direction can be changed, wherein the adjusting element (30) preferably is a roller body (31), which is rotatable about its longitudinal axis and provided with a curved through-channel (32) for air.
8. The device according to one of claims 1 to 7, characterized in that the air distribution channel (11) extends as far as opposing upturns (8) of the carrier plate (4).
9. The device according to one of claims 1 to 8, characterized in that the nozzles (21) are arranged in a row extending parallel to the carrier plate (4) and respectively spaced apart from one another, wherein the row is interrupted in the region of the air connection box (13).

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