DE202007011819U1 - Ventilation on double façade - Google Patents

Abstract

breather for a double façade with an exterior facade (3) and an interior facade (2), which is separated by a space (15) are separated from each other, characterized in that the ventilation device as a module-like ventilation housing that can be integrated into the double façade (5) is designed.

Description

The The invention relates to a ventilation device for a facade or a light roof according to the preamble of the claim 1 and a facade or a light roof with such a ventilation device.

A generic ventilation device and a generic facade are from the DE 196 48 001 A known.

It is known, facades of buildings as so-called double facades train. Such double facades have relative to the building an outer level - hereinafter the outer facade called - and an inner level - below Interior facade called - on, with the outer Level or "skin" is usually made of glass. the mode of operation, the fastening, the design and the dimensions a double façade will meet the respective needs, adapted to static conditions and visual needs.

Of the Space between the outer and the inner Facade level is used for ventilation purposes, so on the one hand for ventilation of the facade itself and on the other hand as Supply and discharge for the ventilation of the Rooms of the building.

The Interior facade can be designed such that it in certain Areas can be opened like a window. The exterior facade on the other hand, is usually designed as a substantially closed shell, the only in certain defined areas with ventilation openings is provided.

A Such double facade offers in particular the advantages of an additional Thermal insulation and improved sound insulation especially when the interior facade is open.

Further Can a window ventilation through windows of the interior facade despite windy and / or cold weather, as the external Air flows are slowed down by the outer facade.

such Double facades have proven themselves. It would be but desirable to the problems of overheating in summer and an undesirably high heat dissipation counteract targeted in the winter.

to Solution to these problems has already been proposed, the Interspace between the outer facade and the inner facade above Thermal, wind and / or ventilation equipment how to ventilate fans.

The generic DE 196 48 001 ("Ventilation double façade") proposes a complete separation of the façade and room ventilation in the space between the two façades, the separation being effected by a full sunshade The individual air flows are motorized, with flaps or thermally controlled The placement of the ventilation elements, the shading takes place The complete separation of the ventilation levels requires full-surface sun protection, so that no individual design of the sunblind is possible, for example by slats or external venetian blinds, thus eliminating the need for light control via slats or individual adjustment the slats for optimal interior shading or lighting with natural light possible.

The partially shading the z. B. upper half of the transparent Ausfachungselemente does not seem appropriate, since the ventilation levels not be separated cleanly.

The WO 91/19 137 describes a method for ventilating a double façade, in which the inflowing air is conditioned as required and serves for the exchange of air with the inner spaces.

The DE 43 44 750 relates to a double facade with separating elements, in which a temperature-controlled electrical ventilation system is provided, which sucks air and blows out.

The Against this background, the invention has the task of further optimizing To create a ventilation system for facades, with the optimized ventilation of rooms of a building over double facades and the ventilation the space between the two levels of a double façade is feasible.

The Invention solves this problem by the subject matter of the claim 1. The invention also provides a with an inventive Ventilation device provided facade according to claim 4 and the subject matter of claim 5.

advantageous Embodiments of the invention are the subclaims refer to.

The Invention provides a ventilation device in the manner of a modular in front of a building mountable ventilation housing, which is preferably designed so that it is on a facade can be combined with other ventilation housings, to realize an optimized ventilation process.

The ventilation housing are preferably designed such that the ventilation within a double façade with integrated sunscreen in three different levels takes place, again preferably a continuous ventilation level, a ventilation level with non-return flap and a controllable according to the environmental conditions or adjustable main level are used.

To a particularly preferred embodiment of the invention is going to take advantage of the double facade and a controlled and Ventilation according to seasonal requirements to use within the double facade, further proposed the Ventilation components and shading elements in the ventilation housing summarized in the manner of a module and by a skillful Combination and design within the facade and the ventilation module / housing to ensure optimal use.

The Invention also provides the subject matters of the claims 13 and 14, respectively, after which a clever type of diagonal ventilation is realized within the divisions.

following the invention is based on an embodiment below With reference to the drawings described in more detail. It shows:

1a a schematic view of a portion of a facade according to the invention in a first operating position;

1b a sectional view of the facade section 1a showing in the lower section a section through a first and in the upper region a section through a second region of the facade section;

2a a schematic view of the portion of the facade of the invention 1 in a second operating position; which shows in the lower section a section through a first and in the upper region a section through a second region of the facade section;

2 B a sectional view of the facade section 2a ;

3a C is a plan view of a further facade section according to the invention and two sections through this facade section;

4 - 5 Detailed views of in 3 defined details of the facade 3 .

6 Detail view of the facade 3 ,

1a and 2a each show an external view of a double façade of a building whose location is indicated by the reference numeral 1 is designated, which defines an interior or the room side of the building.

The double facade has two levels: an interior facade facing the building 2 and a substantially transparent outer facade here 3 ,

Preferably in the amount of a ceiling head 4 of the building are at individual or at all compartments 6 the facade each as a ventilation housing 5 trained ventilation devices arranged or preferably integrated into the double facade. Preferably, the ventilation housing 5 with integrated set screws 30 aligned and adapted to the building (see 4 ).

The facade is in several compartments 6 divided. It is advantageous if the Gefachhöhe the compartments 6 the facade corresponds to the height of a storey. But it can also be a multiple of the floor height.

In 1 and 2 are the divisions 6 the facade in the area of the inner facade 2 and the exterior facade 3 through surface elements 8th . 31 covered. The interior facade 2 may also be provided with appropriate opening elements such as windows, or elements such as fans, heat exchangers and / or parapets. (not shown here).

The surface elements 31 the outer facade 3 preferably extend over the space between the floor corners 4 ,

In the range of some or preferably all divisions 6 is each one of the ventilation housing 5 in the area of the ceiling heads 4 assembled.

Preferably, the ventilation housing 5 a substantially box-shaped, elongated basic shape.

The ventilation housing 5 are also preferably configured such that they extend from the ceiling heads 4 or possibly one in front of the ceiling heads 4 arranged insulating layer 7 to the area of the outer facade 3 extend, with which they further preferably flush flush to the outside, so that they are in the area between the surface elements 8th the outer facade 3 even a certain part of the outer facade 3 form.

The ventilation housing 5 are in their usual - in 1 illustrated - installation position in the horizontal direction, for example, by means of an intermediate wall, not shown, divided into a first area and a second area, which serves as Zuluftbereich 5a and as exhaust air area 5b are trained or serve.

In the 1 The outer side of the ventilation housing is correspondingly in the supply air area 5a with a supply air opening 9 for the upper Gefach and in the exhaust air area 5b with an exhaust opening 10 provided for the respective lower Gefach or completely formed as such. The compartments are laterally separated from each other by partitions, not shown here, so that in this respect as well a ventilation over the individual compartments can be realized.

In the area of the supply air opening 9 and the exhaust port 10 can each baffles 11 . 12 be arranged, it lends itself to the geometry and shape of these baffles 11 . 12 in flow channels 32 . 33 the preferred flow direction of the air ( 4 and 5 ).

The basic function of this arrangement is as follows. In the construction shown in the figures, air flows in the region of a compartment 6 through the supply air area 5a a first lower ventilation housing 5 into the lower ventilation housing. From there, the air flows through an upper side in the installed position 13 in the supply air area - here as a ventilation grille 14 trained - in the gap 15 of the compartment 6 between the interior facade 2 and the exterior facade 3 and from there diagonally through the further in through an opening 16 in the lower side 17 (see also 3 to 5 ) of the relative Gefach 6 upper ventilation housing 5 in the exhaust air area 5b the upwards to the Gefach 6 following upper ventilation device 5 and from there through the exhaust port 10 outward. In the exhaust air area, the upper side 13 be formed closed.

Thus, in a structurally simple way, a particularly effective diagonal ventilation of the gap 15 the double façade feasible.

Further Details and refinements of ventilation are below explained.

The ventilation housing 5 are preferably designed in each case modular and pre-assembled, ie, the dimensions of the ventilation housing 5 be in the workshop according to the desired element width, the desired depth and the desired height at the height of the ceiling head 4 oriented dimensions.

The outer view of the ventilation unit can - without the supply air and the exhaust port 9 . 10 to be closed, completely or partially optically disguised with surface elements such as glass, solar panels, stone spaced to prevent direct insight into the ventilation unit and to optimize the visually pleasing appearance of the entire facade (not shown here).

In the following, let the elements of the arrangements be made 1 to 5 described in more detail.

To 1 has the outer facade 3 profiles 18 on which the surface elements 8th mounting.

fastener 19 . 20 . 30 for fixing the double façade to the ceiling head 4 are in 1 and especially good in 4 to recognize.

Inside the ventilation housing 5 shares the supply air duct 32 from the outside first into two sub-channels 21 . 22 on. This has the following function. In the space 15 the double façade is as dividing plane 23 of the gap 15 arranged a sunshade, which may for example consist of adjustable slats. This parting line 23 divides the gap 15 in an outer section 15a and an inner section 15b ,

In the upper and / or lower ventilation housing sunscreen shots 34 . 35 be formed, in which the sunscreen of the parting line 23 is retractable ( 4 and 5 ).

The one subchannel 21 flows into the outer section 15a of the gap and the other sub-channel 22 in the inner section 15b of the gap.

Accordingly, the exhaust air area 5b the ventilation housing also separate openings 24 . 25 . 16 from the sections 15a and 15b in the exhaust air area, which together in the exhaust port 10 lead (see also 5 ).

That way it is possible to do the sections 15a and 15b inside and outside the dividing plane 23 to ventilate separately from each other.

This is advantageously a two-level ventilation of the gap 15 realizable.

Preferably, the section 15a constantly ventilated while it is possible to ventilate the section 15b via a shut-off device - here as a rotary valve 26 . 27 trained - to close. The operation of the rotary valve can be done mechanically by hand with a tool or preferably by motor (not visible here).

The rotary valves 26 . 27 in the supply air area 5a and in the exhaust air area 5b can lie on an axis and also possibly be actuated on a shaft by a common drive.

The adjustment of the axes can be done synchronously / simultaneously over all levels or over all superimposed elements, since one axis the Zuluft- and exhaust air opening in Lüf impacted housing.

When opening the rotary valve in the supply air area 5a opens at least the same extent the exhaust air area of this ventilation housing with approximately the same cross sections to achieve a controlled flow without large pressure differences and unwanted drafts. Be both ventilation housing 5 pressed on one of the compartments, the inner section becomes 15b of the gap 15 open.

But it is also possible the supply air in the lower ventilation housing 5 with the exhaust air axis in the associated upper ventilation housing 5 To connect control technology to an individual ventilation per Gefach 6 to enable.

It is beneficial to the channels 21 . 24 which provides aeration of the plane 15a or section 15a secure smaller dimensions than the channels 22 . 25 . 16 of the section 15b because in the area 15a only a continuous ventilation to be ensured, which serves in particular the removal of air to prevent settling of condensate.

In the area 15b On the other hand, ventilation may take place when it is desired, for example, to ventilate the interior of the building.

It is advantageous to the previously described two-level concept to extend at least a third level of ventilation to the Optimize ventilation concept further.

The third ventilation level L3, for example, can be realized in a simple manner by virtue of the fact that, in addition to the exhaust air opening, it is possible to move out of the inner section 15b of the gap, with the rotary valve 27 is closable, close to the dividing plane 23 still the third exhaust duct 25 out of the area 15b is provided in the exhaust area, which preferably with a check valve such as a non-return valve 28 is provided.

so three ventilation levels L1, L2, L3 are formed.

The first ventilation level L1 is directly behind the outer facade 6 before shading or parting plane 23 in the section 15a of the gap 15 and has a smaller cross-section than the third ventilation level L3 in section B, which is the main ventilation level. This third level L3 is behind the shading or dividing plane 23 directly in front of the interior facade 2 arranged.

Directly behind the shading 23 is the second ventilation level L2, which is supplied through the first ventilation level L1 and in the open state by the second ventilation level L2 of the ventilation housing air.

This air escapes through the middle exhaust duct 25 that with the non-return valve 28 is provided, so that from the outside oppressive air can not get through this exhaust duct into the space between the double façade.

The exhaust duct 25 is used for additional ventilation and especially for locked supply and exhaust air ducts in winter for pressure equalization by means of forced ventilation with warming air in the section 15b ,

The rotary valves 26 . 27 are preferably radiused with their closing surface as in a ball seat valve. This embodiment is particularly advantageous. The shut-off devices can also be realized in other ways.

In the area of the supply air openings, filters can be arranged (as in the area of the reference numeral 29 ) below the ventilation grille 14 which clean the incoming air and have an additional sound-insulating / heat-insulating effect. Another / alternative filter also z. B. for cleaning purposes, below the ventilation or gangue grid 14 to be placed.

The cross sections of the main supply and exhaust air ducts 22 . 16 correspond approximately in their dimensions, the main air duct 22 at least as big as the main exhaust duct 16 is to optimize the chimney effect within the gap. This is especially useful for additional room ventilation.

Furthermore, in the exhaust air area 5b according to the supply air area 5a an unlocked exhaust duct 24 intended for permanent ventilation of the first level, inter alia for the purpose of condensate water aeration and prevention of condensation.

additionally can motor-driven fans in the ventilation housing be placed to enhance the ventilation effect (not shown here).

Because of the ventilation housing 5 at a Gefach 6 , preferably above and below a Gefaches 6 , are constructed identically and in the installed state, the supply air and the exhaust air area are positioned one above the other, arises within the intermediate space 15 the double facade a diagonal ventilation, with the gap 15 is well ventilated.

Another positive effect is that the exchanged heated air outside the facade ascends and is not routed directly from the exhaust air opening of the first floor level into the supply air opening of the second level, so that each level is supplied with fresh and unused air.

Preferably, there is no feedback of the air flows or air masses within the facade element or the overall facade, which is an individual ventilation of the compartments 6 allows.

The inside of the gap 15 The resulting chimney effect also supports room ventilation when the window is open. A motorized ventilation or a heat recovery system in the area of the parapet to the room side is also conceivable.

The Possibility of later assembly of the outer Façade level allows a modular structure, as well this item can be prefabricated in the workshop and in the Trap z. As a damage or an optical / functional change the level can be easily replaced.

Test results show that the internal temperature of the intermediate space 15 in any case substantially equal to the outside temperature outside the facade, but in addition to the advantages of sound insulation and fresh air supply within the facade gap and thus the room ventilation stand out.

The ventilation housing 5 is manufactured as a module and mounted on the building. The exterior facade 6 can also be designed and mounted like a module.

Preferably the ventilation takes place depending on the outside Conditions according to the following scheme.

In summer conditions ( 2 ) become the main air channels 22 . 16 the third ventilation level L3 in addition to the constantly open ventilation ducts 21 . 24 the first and second ventilation level L2 and L3 opened or adapted to the desired conditions. This means that the heated air can escape from the upper ventilation housing 5 in its exhaust air area 5b escape and fresh air can flow in from below.

Because the inlet and outlet openings 9 . 10 at the Gefach 6 are not directly on top of each other, but laterally or diagonally offset, now creates the already mentioned effect of diagonal ventilation, the air flow reaches virtually the entire interior of the double façade and allows a complete exchange of air.

The summery sunscreen 23 has no negative influence on the ventilation behavior, but rather has a supporting effect, since it serves as a theoretical parting plane 23 a ventilation duct L1 before and a ventilation duct L2 defined behind the parting plane.

Experiments have shown that in this arrangement, the interior or inner section 15b does not warmer than the outside temperature, so that overheating of the interior of the double facade does not occur as with standard double facades. The temperature, which is higher for the building interior temperature, allows natural ventilation of the building space due to the resulting thermal.

In winter conditions ( 1 ) become the main air channels 22 . 16 the third ventilation level through the rotary valve 27 closed, leaving the desired heat buffer in the gap 15 the double façade is created.

The first ventilation level is further the prevention or the removal of condensate and a low continuous ventilation.

The second ventilation level supports z. B. with lowered sunscreen, the ventilation of the gap, especially the third level of ventilation. As the inside temperature rises, the pressure in the section increases 15b what the check valve 28 opens.

In front Especially in the transitional period, it makes sense, the main ventilation level Regulate L3 individually in their flow opening width, to get the desired effects.

A Daytime and nighttime setting is also possible at night strongly sinking outside temperatures uniform Temperature course to get in the space between the double facade.

The Control of the opening adjustment can be done centrally or depending on the concept and structure of the entire facade or ventilation unit individually over the user.

meaningful is an automatic control based on data from sensors (façade interior temperature, outside temperature, Wind speed, humidity, etc.).

1

building

2

interior facade

3

outer facade

4

cover head

5

vent housing

5a

supply air

5b

exhaust area

6

partitions

7

damp course

8th

surface elements

9

air intake opening

10

exhaust vent

11 12

baffles

13

page

14

ventilation grille

15

gap

15a, b

sections

16

opening

17

page

18

profiles

19 20

fastener

21 22

subchannels

parting plane

24 25, 16

openings

26 27

rotary vane

28

check valve

29

Area

30

screws

31

surface elements

32 33

flow channels

34 35

Sunscreen shots

L1, L2, L3

ventilation levels

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 19648001 A [0002]
• - DE 19648001 [0010]
• WO 91/19137 [0012]
• - DE 4344750 [0013]

Claims (32)

Ventilation device for a double façade with an external facade ( 3 ) and an interior facade ( 2 ) passing through a space ( 15 ) are separated from each other, characterized in that the ventilation device is designed as a module-like ventilation housing that can be integrated into the double façade ( 5 ) is designed. Ventilation device, in particular according to claim 1, characterized in that the ventilation housing ( 5 ) is designed such that it in each case the functions of a Zuluftgehäuses and an exhaust air housing in a Zuluftabschnitt ( 5a ) and in an exhaust air section ( 5b ) combined. Ventilation device according to claim 1 or 2, characterized in that the ventilation housing ( 5 ) is designed so that it together with another of the ventilation housing ( 5 ) on a Gefach ( 6 ) the double façade combines the functions of the supply air housing and the exhaust air housing. Double façade or roof with an external facade ( 3 ) and an interior facade ( 2 ) passing through a space ( 15 ) are separated from each other, characterized by one or more ventilation devices according to any one of the preceding claims. Double facade or roof, in particular according to claim 4, characterized in that the ventilation housing ( 5 ) are designed such that the ventilation within the compartments ( 6 ) of the double façade with integrated sunshade in three different levels (L1, L2, L3). Double facade or roof according to claim 5, characterized characterized in that the three different levels (L1, L2, L3) a continuous ventilation level, a ventilation level with non-return flap and a main level. Double facade or roof according to claim 4, 5 or 6, characterized in that above and below at least one compartment ( 6 ) each one of the ventilation housing ( 5 ) is arranged. Double facade or roof according to claim 4, 5, 6 or 7, characterized in that the ventilation housing ( 5 ) have a substantially box-shaped, elongated basic shape. Double facade or roof according to one of claims 4 to 8, characterized in that the ventilation housing ( 5 ) are preferably configured such that they extend from the ceiling heads ( 4 ) or possibly one in front of the ceiling heads ( 4 ) arranged insulating layer ( 7 ) to the area of the outer facade ( 3 ). Double facade or -light roof according to one of the preceding claims, characterized in that the ventilation housing in the horizontal direction, for example by means of an intermediate wall, not shown here into a first area and a second area are divided, which as the Zuluftbereich ( 5a ) and as the exhaust air area ( 5b ) are formed. Double façade or -light roof according to one of the preceding claims, characterized in that the outer side of the ventilation housing (in the installed position) ( 5 ) in the supply air area ( 5a ) with a supply air opening ( 9 ) and in the exhaust air area ( 5b ) with an exhaust air opening ( 10 ) or are designed entirely as such. Double facade or roof according to one of the preceding claims, characterized in that in the region of the inlet opening ( 9 ) and the exhaust port ( 10 ) baffles ( 11 . 12 ) are arranged. Double facade or roof, in particular according to one of the preceding claims or according to the preamble of claim 1, characterized in that the arrangement of the two ventilation housing ( 5 ) on a Gefach ( 6 ) is in each case such that the supply air area ( 5a ) of a lower ventilation housing ( 5 ) on a Gefach ( 6 ) and the exhaust air area ( 5b ) of the further ventilation housing above this compartment ( 6 ) are offset diagonally to each other, so that in Gefach ( 6 ) Diagonal ventilation takes place. Double facade or roof, in particular according to one of the preceding claims, characterized in that each ventilation housing ( 5 ) in the installed position for the lower compartment ( 6 ) as exhaust air device and for each upper Gefach ( 6 ) serves as Zulufteinrichtung. Double facade or roof according to one of the preceding claims, characterized in that the ventilation housing ( 5 ) outside completely or partially visually covered with surface elements. Double facade or roof according to one of the preceding claims, characterized in that the supply air duct ( 32 ) in the supply air area ( 5b ) into two subchannels ( 21 . 22 ), whereby the one sub-channel ( 21 ) in an outer section ( 15a ) in front of a dividing plane ( 23 ) opens in the intermediate space and the other sub-channel ( 22 ) in the inner section ( 15b ) of the gap ( 15 ). Double facade or roof after one of the preceding claims, characterized in that the exhaust air area ( 5b ) of the ventilation housing ( 5 ) two separate exhaust ducts ( 24 16 ) from the sections ( 15a . 15b ) of the gap ( 15 ) having. Double facade or roof according to one of the preceding claims, characterized in that the exhaust air area ( 5b ) of the ventilation housing ( 5 ) three separate exhaust ducts ( 25 . 24 . 16 ) from the sections ( 15a . 15b ) having. Double facade or roof according to one of the preceding claims, characterized in that the separate exhaust ducts ( 25 . 24 . 16 ) from the sections ( 15a . 15b ) in a common exhaust duct ( 33 ). Double façade or roof according to one of the preceding Claims, characterized by a shut-off device. Double facade or -light roof according to one of the preceding claims, characterized in that the shut-off device as a rotary valve ( 26 . 27 ) is trained. Double facade or roof according to one of the preceding claims, characterized in that the rotary valves ( 26 . 27 ) as a shut-off device of the third ventilation level ( 11 , L23, L3) are designed. Double facade or roof according to one of the preceding claims, characterized in that the rotary valves ( 26 . 27 ) of the supply air area ( 5a ) and the exhaust air area ( 5b ) lie on a common axis. Double facade or roof according to one of the preceding claims, characterized in that the rotary valves ( 26 . 27 ) are actuated by a motor. Double facade or roof according to one of the preceding claims, characterized in that the rotary valves ( 26 . 27 ) are manually operated. Double facade or roof according to one of the preceding claims, characterized in that the rotary valves ( 26 . 27 ) have a radius-like closing surface. Double façade or roof according to one of the preceding claims, characterized in that the channels ( 21 . 24 ), which is a ventilation of the outer section ( 15a ) of the gap ( 15 ) are smaller than the channels of the inner section ( 15b ). Double facade or roof according to one of the preceding claims, characterized in that directly behind the dividing plane ( 23 ) the second ventilation level (L2) is located. Double facade or roof according to one of the preceding claims, characterized in that air of the second ventilation level (L2) through the central exhaust duct ( 25 ) escapes. Double facade or roof according to one of the preceding claims, characterized in that the middle exhaust duct ( 25 ) with a check valve such as a non-return valve ( 28 ) is provided. Double facade or roof according to one of the preceding claims, characterized in that the supply air area ( 5a ) of the respective lower ventilation housing ( 15 ) on a Gefach ( 6 ) synchronously with exhaust air area ( 5b ) of the corresponding above corresponding ventilation housing ( 5 ) is controllable. Double facade or roof according to one of the preceding claims, characterized in that the ventilation housing ( 5 ) are provided with filters.