DE102010001319A1 - Air outlet with a housing and a ceiling sail with air passage - Google Patents

Abstract

The invention relates to an air passage (1 '' ') with a housing (2) having an air inlet nozzle (5) for connection to a supply air duct and an air outlet surface (7) provided with a perforation (8) or providable. In order to develop a known air passage to the effect that it is characterized by a lower overall height and can also be used in edge areas of ceilings or ceiling canopies, it is provided according to the present invention, the air passage (1 '' ') with a partition wall (10). equipping an interior of the housing (2) in an inlet space (11) and an outlet space (12), wherein the air inlet nozzle (5) opens into the inlet space (11) and the outlet space (12) bounded by the air outlet surface (7) becomes. Furthermore, according to the invention, an overflow cross section (15) is provided which forms a flow connection between the inlet space (11) and the outlet space (12), wherein the air passage (1, 1 ', 1' ', 1' '', 1 '' '' , 1 '' '' ') in the region of the overflow cross-section (15) can be deflected by approximately 180 °. In addition, the invention relates to a ceiling sail (30) comprising a pre-described air passage (1 '' ').

Description

introduction

The invention relates to an air passage with a housing having an air inlet nozzle for connection to a supply air duct and an air outlet surface, which is provided with a perforation or providable. In addition, the invention relates to a ceiling sail with a support plate and thus heat-conducting coupled heat exchanger elements which are thermally coupled with at least one flow-through line for a heat transfer medium.

State of the art

Air outlets are used for air conditioning of rooms and typically installed in the area of ceilings or walls. Suspended ceiling structures offer the possibility to arrange the air outlets in the space between the suspended ceiling and the actual ceiling, the air outlet surface is either in the plane of the suspended ceiling or directly above it.

From the prior art air outlets are known in which the supply air flows vertically downwards through the perforation with a uniform distribution as the source air, the scope of these air outlets is very limited in that there are no persons under the air-permeable area in the ceiling can, since there is no thermal comfort, in particular due to the drafts and the local temperature reduction.

A much more powerful air passage is in the DE 10 2007 008 019 A1 described, which operates on the principle of a turbulent mixed air system. The supply air does not emerge perpendicular to the ceiling, but the perforation is flowed through at the lowest possible angle, so that there is a ceiling-parallel air flow, which induces the room air. This gives a high power density with good thermal comfort. A disadvantage of the known air outlet is its relatively high height, which is due to the fact that the air passage is traversed perpendicular to its exit surface. It is also disadvantageous that the known air passage must be arranged centrally in the ceiling, as it blows the supply air in all directions radially. A directed outflow in a small angular range is not possible with this known air passage.

task

It is an object of the present invention to develop the known from the prior art air passage to the effect that it is characterized by a lower height and can also be used in edge areas of ceilings or ceiling canopies. It is another object of the present invention to further develop a ceiling sail of the type described above.

solution

Based on an air passage of the type described above, this object is achieved by a partition which divides an interior of the housing into an inlet space and an outlet space, wherein the air inlet nozzle opens into the inlet space and the outlet space is limited by the air outlet surface. Furthermore, the object is achieved by an overflow cross-section, which forms a flow connection between the inlet space and the outlet space, wherein air flowing through the air passage can be deflected by approximately 180 ° in the region of the overflow cross-section.

If the air passage according to the invention is used as a ceiling air passage, it is positioned such that the supply air leaves the air passage in a direction parallel to the ceiling and flows into the space. The overflow cross section, which forms a flow connection between the inlet space and the outlet space of the air passage, should be smaller than the cross section of the inlet space, so that the air flowing through the air passage is accelerated when passing the overflow cross section. The actual deflection of the air passage through the air flowing takes place at the edge of the partition, which limits the overflow cross-section to one side. Accordingly, the air is guided around the ending separating plate, whereby the supply air is already deflected into a flow which is almost parallel to the air outlet surface.

By the deflection of the air passage through the air flowing through about 180 ° within the air passage, this can be made with a low height, so that it can be accommodated within suspended ceiling structures, which provide only a gap of lesser height. The use in combination with a ceiling sail, so a subfield of a ceiling, is easily possible.

In contrast to the known air passage of the aforementioned DE 10 2007 008 019 A1 the supply air leaves the air passage according to the invention at its air outlet surface only in one Direction, which is why it is particularly useful for the arrangement in the edge regions of a room. The air conditioning of corridors can be easily realized by means of the air passage according to the invention. The air leaving the air passage according to the invention flows in a strip-shaped area with almost parallel boundary lines.

In order to achieve an acceleration of the air passage through the air, it is advantageous if a flow cross-section of the inlet space and / or the outlet space in the direction of flow is preferably narrowed continuously, more preferably the flow cross-section of the air inlet nozzle to a - viewed in the flow direction - End cross section of the exit space continuously - preferably to zero - narrows. If the air leaves the air passage at a high speed, the induction effect is significantly improved.

An embodiment of the present invention provides that the partition wall emanates from a housing wall, which extends approximately perpendicular to the air outlet surface, wherein preferably the air inlet nozzle is arranged on said housing wall. In this case, the partition may further be integrally formed with the housing wall and thus represent a kinked continuation of the same.

The housing and / or the air outlet surface and / or the partition wall may or may be elongated, wherein the flow direction extends in each case in the transverse direction of the housing and / or the air outlet surface and / or the partition wall. While the ratio of the width to the height of the housing is significantly greater than 1, the length of the housing is typically smaller than the width thereof, so that on the one hand large flow widths can be realized and the air passage on the other hand particularly well in the edge region of rooms or can be used by cooling sails. Advantageously, the width of the housing is two to six times as large as the length of the housing.

Advantageously, the housing is cuboid in shape of a truncated pyramid or prism-shaped, wherein the partition is flat and extends at an angle to the air outlet surface. In this way, it is particularly easy to form a steadily narrowing flow cross-section. The angle enclosed by the partition with the air outlet surface should be between 5 ° and 15 °.

According to a further embodiment of the invention, it can be provided that in the longitudinal direction laterally adjacent to the air outlet surface in an overflow cross-section of the housing is an air-impermeable region which is imperforate or in which the perforation is covered, preferably the air-impermeable region is integrally formed from the housing. This embodiment is suitable, for example, when the perforation of the air outlet surface is formed by an existing perforated ceiling, which has a relatively large free passage cross-section. By such adaptation of the actually usable air outlet surface, the deflection of the supply air is effectively ensured.

Furthermore, it is advantageous if at least one nozzle, preferably a nozzle row, which is arranged in the housing, starting from the inlet space and with the at least a partial volume flow from the interior of the housing is blown, wherein at least one nozzle, preferably a row of nozzles below the air inlet nozzle is arranged and has a parallel to the air outlet surface extending discharge direction. By means of the air flowing out of the nozzle or nozzle row, the induction effect of the air passage is further increased.

Alternatively or additionally, at least one nozzle, preferably a nozzle row, may be arranged in a housing wall, which is located on a side of the partition wall facing away from the air outlet surface. If the air passage is used in the intermediate space of a suspended ceiling, then the supply air flowing from these nozzles can be used for cooling the actual ceiling, which is designed, for example, as a concrete ceiling (preferably cooling by means of night air).

Preferably, a flow cross section with at least one nozzle or nozzle row by means of at least one adjustable Ansperrorgans completely or partially blocked. In this way, the amount of air flowing through the nozzles air is adjustable.

In this case, the obturator is advantageously designed in the form of a pivotable flap with which both an inlet cross-section of a nozzle or nozzle row and between the nozzle or nozzle row and the Überströmquerschnitt befindlicher flow cross-section in the inlet space is lockable. As a result, the air passage according to the invention can be adapted to a wide variety of applications.

With regard to a ceiling sail mentioned above, the object is achieved in that the ceiling sail is provided with an air passage according to one of claims 1 to 8, wherein the air outlet surface of the air passage parallel to and preferably flush with a to tempering space facing bottom of the support plate is arranged. The supply air emerging from the air outlet surface of the air passage thus flows along the heat exchanger elements of the ceiling sail, whereby the temperature of the room is increased. The air passage according to the invention can be used very advantageously in conjunction with ceiling sails, since it can be set by its 180 ° air deflection between the supply line in the nozzle and air outlet direction to the edge of the cooling sail and the cooling elements thus need not be interrupted. Furthermore, this type of mounting offers the possibility to supply the ceiling sail over its entire length with supply air, whereby increased by the increased air movement of the heat transfer coefficient and thus increases the performance of the ceiling sail, which then acts as a cooling sail.

It follows from the foregoing that the heat exchanger elements are advantageously located only on the side of the housing of the air passage which faces away from the overflow cross section.

In order to further increase the performance of the ceiling sail, it can be provided that a partial volume flow from at least one nozzle, preferably a row of nozzles, can be blown along an upper side of the carrier plate provided with the heat exchanger elements. Since a ceiling sail is typically mounted only in one area of the ceiling and the area above the ceiling sail is consequently in communication with the room air, the supply air flowing along the heat exchanger elements also benefits the space. In addition, the total air volume of the air passage is increased by the additionally blown through the nozzles supply air, without changing the size of the same.

embodiment

The invention will be explained in more detail with reference to embodiments of the invention for air outlets and ceiling panels, which are shown in the drawings.

It shows:

1 FIG. 2: a vertical section through a first exemplary embodiment of an air passage according to the invention, FIG.

2 : the air outlet 1 installed on a ceiling tile,

3 FIG. 2 is a vertical section of a second embodiment of an air passage according to the invention, FIG.

4 : another example of an air passage according to the invention installed on a wall,

5 FIG. 2: a vertical section through a ceiling sail according to the invention with a fourth air passage according to the invention, FIG.

6 FIG. 2 is a vertical section through a fifth air passage according to the invention, FIG.

7 FIG. 2 is a vertical section of a sixth air passage according to the invention, FIG.

8th : an enlargement of the air outlet 7 and

9 : a plan view of the ceiling sail according to 5 ,

The 1 shows a first example of an air passage according to the invention 1 in vertical section. The air outlet 1 has a housing formed from sheet metal 2 with a prismatic cross section, the ones in the 1 recognizable length L is smaller than the width and greater than the average height H of the housing 2 , The prism-like design of the housing 2 is reason that the left in the 1 shown side wall 3 is higher than the right side wall 4 , being at the higher side wall 3 an air inlet 5 is provided for connection to a supply air duct, not shown.

The footprint representing the lower side surface 6 of the air outlet 1 forms an air outlet surface 7 that has a perforation 8th having. In the 1 becomes the air outlet surface 7 through a perforated plate 9 formed, the integral part of the air passage 1 and accordingly with the housing 2 connected is.

Inside the case 2 runs a partition 10 covering the interior of the air outlet 1 in an entrance hall 11 and an exit space 12 divides, with the dividing wall 10 starting from the lower left edge 13 of the housing 2 obliquely protrudes into the interior and an angle α with the air outlet surface 7 of 8 °. The partition 10 is in one piece from the housing 2 Molded by a corresponding part of the left side surface 3 was folded over.

Between one in the interior of the air passage 1 located edge 14 the partition 10 and the right side surface 4 remains a distance a, the one the entry space 11 and the exit space 12 connecting overflow cross section 15 forms.

Due to the sloping course of the partition 10 becomes the entry space 11 starting from his the air inlet nozzle 5 facing side to the overflow cross section 15 facing side smaller. The same applies to the exit space 12 which, however, loses cross-sectional area in the opposite direction. The exit space 12 runs wedge-shaped towards its end 16 out, so that the flow cross-section on the air inlet nozzle 5 facing side narrowed to zero.

The air passage 1 flowing air is made clear by arrows. The in the air passage 1 horizontally introduced supply air (arrow 17 ) first flows through the entry space 11 , where it is deflected slightly downward (arrow 18 ) until the overflow cross section 15 reached. There, the air experiences, in particular by the edge 14 the partition 10 as well as the housing wall 4 , a deflection by about 180 ° (arrow 19 ), so that they now in the opposite direction (arrow 20 ) the exit space 12 happens and the air passage 1 at the air outlet surface 7 approximately parallel (arrow 21 ) or only slightly inclined to the air outlet surface 7 leaves. Due to the continuous narrowing of the flow cross-section of the air passage 1 In the flow direction, the supply air undergoes a continuous acceleration, whereby the induction effect of the air passage 1 is improved.

In the 2 is shown as the air passage 1 out 1 on a ceiling panel 22 is arranged and like that from the air passage 1 flowing supply air along the underside of the ceiling panel 22 is emanated. As the ceiling panel 22 also with a perforation 8th can also provide an air passage 1 can be used, which is designed to be open at the bottom. The air outlet surface 7 will then pass through the area of the ceiling panel 22 formed, which is below the housing 2 of the air outlet 1 located.

In the 3 is a second example of an air passage according to the invention 1' see where the case 2 is open at the bottom and the air outlet surface 7 thus through a perforated ceiling panel 22 is formed. Another difference to the air passage 1 according to 1 is that the case 2 on its overflow cross section 15 facing side in the area of the air outlet surface 7 an air-impermeable area 23 owns the perforation 8th the ceiling panel 22 covers. The Indian 3 illustrated air-impermeable area 23 is in one piece from the housing 2 molded, which is also conceivable, the air-impermeable area 23 manufacture and install as a separate component. Through the air-impermeable area 23 is at the air passage according to 3 the deflection of the supply air effectively ensured.

The 4 shows a third example of an air passage according to the invention 1'' that on a wall 24 is installed, that the outflowing incoming air is first directed against a ceiling and then again along its bottom and thus far into the depth of the room flows. The air outlet 1'' in the 4 has two air inlet nozzles 5 . 5 ' , which are located on the corner, but depending on the structural conditions, only one air inlet nozzle 5 . 5 ' is used and the other is closed by blind plugs. Consequently, an air inlet nozzle 7 - As with the previous examples - on a housing wall 25 perpendicular to the air outlet surface 7 arranged and the other air inlet nozzle 5 ' at one of the air outlet surface 7 parallel and opposite housing wall 26 ,

Another example of an air passage according to the invention 1''' is in the 5 shown. The construction of the air outlet 1''' corresponds to that in the 1 illustrated air passage 1 , where the air passage 1''' according to 5 In addition, a series of nozzles arranged one behind the other 27 owns, which is below the air inlet 5 in the left side wall 3 are attached and supply air from the interior of the housing 2 lead to the outside.

The air outlet 1''' is on a backing plate 28 arranged on the further heat exchanger elements 29 are arranged in the form of meandering copper lines and aluminum contact profiles, which can be traversed by a heat transfer medium. The air outlet 1''' , the support plate 28 and the heat exchanger elements 29 together form an inventive ceiling canopy 30 , which is mounted either as a single part or in combination with other ceiling panels below a ceiling. The ceiling sail 30 is between 1.0 m and 1.5 m wide and between 2.0 m and 4.0 m long, with several ceiling sails 30 with a distance of 100 to 500 mm can be arranged side by side.

The nozzles 27 Supply air leaving as a partial air flow flows above the support plate 28 along the heat exchanger elements 29 , which improves the performance of the ceiling sail 30 is increased, and enters the room after it has overflowed the ceiling sail above.

The in 6 illustrated air passage 1'''' is in addition to the nozzles 27 with a shut-off device 31 equipped in the form of a hinged flap, by means of an inlet cross-section 32 the nozzles 27 partially or completely obstructed, whereby the amount of air leaving the nozzles can be adjusted.

From the 7 goes another example of an air passage according to the invention 1''''' which can be arranged either on a ceiling panel or a support plate of a ceiling sail. The air outlet 1''''' is on his the air outlet surface 7 opposite surface with a series of nozzles 27 ' equipped, the supply air to the underside of a concrete ceiling 33 bubbles, which also takes place a room temperature.

The air outlet 1''''' , the Indian 8th shown enlarged, also has a shut-off 31 ' , by means of which both the inlet cross section 32 ' the nozzles 27 ' as well as between the nozzles 27 ' and the overflow cross section 15 located flow cross-section 34 can be locked.

Finally, the shows 9 a plan view of the ceiling sail 30 to 5 , wherein in particular the carrier plate 28 at a distance to a facade 35 is attached, as well as in the area of a short side of the support plate 28 located air passage 1''' can be seen. The width B 'of the air passage 1''' is greater than its length L '. in the 9 is easy to see that the incoming air, which is introduced through the air inlet nozzle (by arrow 36 illustrated), in the air passage 1''' is rotated by 180 ° and thus flows almost along the entire support plate bottom, the flow in to the arrow 36 directed opposite direction. The area of the backing plate underside of the flow of the air passage 1''' is detected by a dashed line 37 indicated.

LIST OF REFERENCE NUMBERS

1, 1 ', 1' ', 1' '', 1 '' '', 1 '' '' '

Air passage

2

casing

3

Left sidewall

4

Right side wall

5

Air inlet nozzle

6

Lower side surface

7

Air outlet area

8th

perforation

9

perforated sheet

10

partition wall

11

entry space

12

exit space

13

Edge of the case

14

Edge of the partition

15

overflow cross

16

End of the exit space

17, 18, 19, 20, 21

arrow

22

ceiling

23

air-impermeable area

24

wall

25

housing wall

26

housing wall

27, 27 '

jet

28

support plate

29

Heat exchanger element

30

ceiling panels

31, 31 '

shutoff

32, 32 '

Inlet cross-section

33

concrete ceiling

34

Flow area

35

facade

36

arrow

37

Dashed line

α

angle

L, L '

length

B '

width

H

height

a

distance

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102007008019 A1 [0004, 0009]

Claims (10)

Air outlet ( 1 . 1' . 1'' . 1''' . 1'''' . 1''''' ) with a housing ( 2 ), which has an air inlet nozzle ( 5 ) for connection to a supply air duct and an air outlet surface ( 7 ) having a perforation ( 8th ) or providable, characterized by a partition wall ( 10 ), which has an interior of the housing ( 2 ) into an entry space ( 11 ) and an exit space ( 12 ), wherein the air inlet nozzle ( 5 ) into the entry space ( 11 ) and the exit space ( 12 ) from the air outlet surface ( 7 ) is limited, and by an overflow ( 15 ), which has a flow connection between the inlet space ( 11 ) and the exit space ( 12 ), wherein the air passage ( 1 . 1' . 1'' . 1''' . 1'''' . 1''''' ) air flowing through in the region of the overflow cross section ( 15 ) is deflectable by approximately 180 °. Air passage according to claim 1, characterized in that a flow cross section of the inlet space ( 11 ) and / or the exit space ( 12 ) preferably narrows continuously in the direction of flow, wherein the flow cross-section of the air inlet nozzle (15) is preferably further ( 5 ) up to a - viewed in the flow direction - end cross-section of the exit space ( 12 ) continuously - preferably to zero - narrowed. Air outlet according to claim 1 or 2, characterized in that the partition ( 10 ) emanates from a housing wall which is approximately perpendicular to the air outlet surface ( 7 ), wherein preferably the air inlet nozzle ( 5 ) is arranged on said housing wall. Air outlet according to one of claims 1 to 3, characterized in that the housing ( 2 ) and / or the air outlet surface ( 7 ) and / or the partition ( 10 ) is elongated or are, wherein the flow direction in each case in the transverse direction of the housing ( 2 ) and / or the air outlet surface ( 7 ) and / or the partition ( 10 ) runs. Air outlet according to one of claims 1 to 4, characterized in that the housing ( 2 ) is cuboid, truncated pyramidal or prism-shaped, wherein the partition ( 10 ) is flat and at an angle (α) to the air outlet surface ( 7 ) runs. Air outlet according to one of claims 1 to 5, characterized in that laterally to the air outlet surface ( 7 ) adjacent in the overflow cross section ( 15 ) opposite section of the housing ( 2 ) an air impermeable area ( 23 ) which is imperforate or in which the perforation ( 8th ), preferably the air-impermeable region ( 23 ) in one piece from the housing ( 2 ) is formed. Air outlet according to one of claims 1 to 6, characterized by at least one nozzle ( 27 . 27 ' ), preferably a nozzle row, which in the housing ( 2 ) is arranged from the entry space ( 11 ) and with the at least a partial volume flow from the interior of the housing ( 2 ) is blown, wherein at least one nozzle ( 27 ), preferably a row of nozzles, below the air inlet nozzle ( 5 ) is arranged and a parallel to the air outlet surface ( 7 ) extending discharge direction and / or at least one nozzle ( 27 ' ), preferably nozzle row, is arranged in a housing wall which is located on one of the air outlet surfaces ( 7 ) facing away from the partition ( 10 ), wherein preferably a flow cross-section with at least one nozzle ( 27 . 27 ' ) or nozzle row by means of at least one adjustable obturator ( 31 . 31 ' ) is completely or partially lockable. Air outlet according to claim 7, characterized by a shut-off device ( 31 . 31 ' ) in the form of a pivotable flap, with both an inlet cross-section ( 32 . 32 ' ) of a nozzle ( 27 . 27 ' ) or nozzle row as well as between the nozzle ( 27 . 27 ' ) or nozzle row and the overflow cross section ( 15 ) flow cross section ( 34 ) in the entry space ( 11 ) is lockable. Ceiling sails ( 30 ) with a carrier plate ( 28 ) and thus heat-conducting coupled heat exchanger elements ( 29 ), which are thermally conductively coupled to at least one flow-through line for a heat transfer medium, characterized by an air passage ( 1 . 1' . 1'' . 1''' . 1'''' . 1''''' ) according to one of claims 1 to 8, wherein the air outlet surface ( 7 ) of the air passage ( 1 . 1' . 1'' . 1''' . 1'''' . 1''''' ) parallel to and preferably flush with a underside of the carrier plate facing a chamber to be tempered ( 28 ) is arranged. Ceiling sail according to claim 9, characterized in that a partial volume flow from at least one nozzle ( 27 ), preferably a row of nozzles, along one with the heat exchanger elements ( 29 ) provided top of the carrier plate ( 28 ) is inflatable.

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