DE20014475U1 - Air exchange element and thus formed device for the air conditioning of rooms - Google Patents

Description

Air exchange element and thus formed
Device for air conditioning rooms

The invention relates to an air exchange element for air conditioning rooms and a device for air conditioning rooms formed using one or more such air exchange elements.

The object of the invention is to provide an air exchange element with the simplest possible construction and an air conditioning device with the simplest possible structure.

This object is achieved by an air exchange element according to claim 1 and a device according to claim 12.

Preferred embodiments of the invention are shown in the subclaims.

Osningstraße 10 · D-336D5*Biä6Ktd

;D-33697.Bieleftid · Tel.*ö-521-21O53. Fax+49-521-21054

r — ^i — ii —J-;—:—;—~

SFELD CpOTS&AM 'BJANDf NBURG KIEI PADERBORN HÖHENKIRCHEN

MUNICH - BREMEN - BERLIN

- FRANKFVRTJbIelSFELD -CpOTS&AM -'BJANDf NBURGj KIEIj- PADERBORN - HÖHENKIRCHEN - ALICANTE http.V/vvww.boehmert.de e-mail: postmaster@boehme*rf.3e

2649/77-236

The invention is explained below using various embodiments and with reference to a drawing, in which

Fig. 1a to c show an air exchange element according to the invention in a first embodiment in rear, longitudinal section and front view;

Fig. 2a to c show an air exchange element according to the invention in a second embodiment in rear, longitudinal section and front view;

Fig. 3 a to c show an air exchange element according to the invention in a third embodiment in rear, longitudinal section and front view;

Fig. 4a and b show a variant of the air exchange element according to Fig. 2 in front and longitudinal section;

Fig. 5 shows a device according to the invention for air conditioning rooms in a vertical sectional view; and

Fig. 6 shows the device according to Fig. 5 in a schematic plan view.

Fig. la shows a rear view, Fig. 1b a longitudinal section and Fig. 1c a front view of an air exchange element according to the invention for air conditioning rooms. The air exchange element according to the invention is cylindrical in design and has a first air duct 1, which can be connected to a supply air line (not shown), for supplying conditioned air (arrow 2) and a second air duct 3, which is sound and heat insulated from it, for discharging "used" room air. The two air ducts 1, 3, which in the present embodiment are designed as cylindrical, conical pipe sections of the same length, are connected to one another at their front ends to form a common housing with a supporting front side or front panel 5 and a rear side 6. The front panel 5 which is in the

- 3 - 2649/77-236

remains visible when the air exchange element is installed in a wall 18, can be designed in a visually appealing manner and in the example shown is perforated like a perforated sheet in the ring-shaped exhaust air flow area between the two air ducts. The front panel 5 has a central opening 5a for the supply of the air conditioning air and on its outer edge a flange-like bead 5b for fitting into a wall panel or the like on an inner side 18a of the wall 18 facing the room 14 to be air-conditioned.

The rear side 6 of the air exchange element has a flange-like collar 6a on its outer edge for attachment to the outer air duct 3 and a central connection piece 6b to which a supply air line can be connected. As shown in Fig.

1 a shows, radial webs 8 for mechanical connection are arranged between the inner area around the connection piece 6b and the outer area with the flange 6a. The free areas between the radial webs 8 form air passage openings for exhaust air escaping in the direction of the arrows 7. The rear side 6a is flush with an outer side 18b of the wall 18.

The outside of the first air duct 1 and/or the inside of the second air duct 3 can be covered with a sound and/or heat insulating material 9 as shown. This dampens in particular the transmission of sound from a room to be air-conditioned.

Fig. 2 shows a second embodiment of an air exchange element, wherein, in contrast to the embodiment according to Fig. 1, the first or inner air duct 1' is drawn in like a nozzle on the outlet side (relative to the supplied air conditioning air) in order to influence the flow and mixing behavior (direction, throw, possibly swirl, etc.).

Fig. 3 shows a further embodiment of the invention, wherein the air exchange element comprises a first air duct 1'' with a rectangular cross-section and both

-4-

2649/77-236

on the other hand, each has a rectangular, parallel second air duct 3". Fig. 3c shows the air exchange element from the front or from the room to be air-conditioned, whereby the division into a first (supply air) air duct, the outlet surface of which is divided by the front 5'' with horizontal webs 5b, and two laterally adjacent second (exhaust air) air ducts, the inlet surface of which is again covered by perforated sheet metal on the front, is clearly visible. The back of the air duct element (Fig. 3a) shows the connection piece 6b and air outlet slots 10 on the back 6". In this embodiment, the air exchange element is essentially formed by vertical sheets forming the air ducts, horizontal (lower and upper) sheets, and a front and back.

Fig. 4 shows an embodiment corresponding to Fig. 2 in front view (Fig. 4a) and in longitudinal section (Fig. 4b), wherein in addition to a sound or heat insulation 9 on the inside or inner surface of the second air duct 3 and the outside or outer surface of the first air duct are provided with an additional material 12 which dampens sound transmission directed outwards from a room, which can be arranged, for example, in the form of elevations, ribs or protruding knobs.

Fig. 5 and 6 show a device according to the invention for air conditioning rooms using air exchange elements according to the invention. As Fig. 6 shows in a schematic plan view, a series of rooms to be air-conditioned, in the example shown six rooms 14.1 to 14.6, are each connected via an air exchange element 15 to a common supply air line or, in this case, to two supply air lines 16.1, 16.2 common to three rooms each. The supply air lines are supplied with air conditioning air (arrow 17), which is fed via the connection pieces 6b of the individual air exchange elements to their first air ducts 1 with a slight overpressure and delivered to the rooms 14.1 to 14.6.

&bull; <

&bull; · · &diams;

-5-

2649/77-236

As shown in cross-section in Fig. 5, the air exchange elements 15 are arranged in partition walls 18 in the ceiling area of the rooms, with a suspended ceiling 20 arranged in a corridor 19 between the rooms to be air-conditioned. The entire air conditioning installation, including the air exchange elements and the supply air ducts, is thus accommodated in a gap 21 between the ceiling and the suspended ceiling. This makes it possible to extract the exhaust air emerging from rooms 14.1 to 14.6 via the air exchange elements in one go through the gap 21, which is illustrated by the exhaust air duct 23 and the arrow 24, so that separate exhaust air ducts for individual rooms or a separate exhaust air duct are not required.

The intermediate space 21 shown in Fig. 5 could obviously also be formed in another way, for example by a suspended ceiling in a stairwell, other partitions or intermediate walls or the like.

- Protection claims -

Claims (14)

1. Air exchange element ( 15 ) for air conditioning rooms ( 14 ), with a first air duct ( 1 ) connectable to a supply air line ( 16 ) for supplying conditioned air and a second air duct ( 3 ) insulated therefrom, arranged essentially parallel thereto and of essentially the same length for discharging room air, for arrangement in a wall ( 18 ) of a room to be air-conditioned ( 14 ). 2. Air exchange element according to claim 1, characterized in that both air ducts ( 1 , 3 ) are arranged directly adjacent to one another in a common housing. 3. Air exchange element according to claim 1 or 2, characterized in that the air guide channels are arranged next to one another ( 1 ", 3 ") or coaxially ( 1 , 3 ). 4. Air exchange element according to one of the preceding claims, characterized in that the second air guide channel ( 3 ) coaxially encloses the first air guide channel ( 1 ). 5. Air exchange element according to claim 4, characterized in that the first air duct ( 1 ') is tapered like a nozzle at its end section pointing towards the room to be air-conditioned ( 14 ) or ending in this room. 6. Air exchange element according to claim 1 or 2, characterized in that the first air guide channel ( 1 ") is arranged between two second air guide channels ( 3 ") arranged parallel thereto. 7. Air exchange element according to one of the preceding claims, characterized in that the air ducts are sound and/or heat insulated from one another ( 9 ). 8. Air exchange element according to one of the preceding claims, characterized in that the first air duct ( 1 ) on its surface opposite the second air duct ( 3 ) and/or the second air duct ( 3 ) on its surface opposite the first air duct ( 1 ) is provided with a material ( 12 ) which dampens sound transmission directed outwards from a room, in particular in the form of ribs or knobs. 9. Air exchange element according to one of the preceding claims, characterized in that a front side ( 5 ) of the air exchange element facing the room to be air-conditioned ( 14 ) is covered with a perforated sheet in an exhaust air inlet region located between the first and second air duct. 10. Air exchange element according to one of claims 3 to 5, characterized in that a rear side of the air exchange element facing away from the room to be air-conditioned ( 14 ) has a support plate ( 6 ) with radial webs ( 8 ) in an exhaust air outlet region located between the first and second air guide duct. 11. Air exchange element according to claim 6, characterized in that a rear side of the air exchange element facing away from the room to be air-conditioned is provided with air slots ( 10 ) in exhaust air outlet regions located between the first and second air ducts. 12. Device for air conditioning rooms ( 14 ), with at least one air exchange element ( 15 ) according to one of the preceding claims for each room to be air-conditioned ( 14 ), wherein a supply air line ( 16.1 , 16.2 ) common to all or several rooms ( 14.1 to 14.3 ; 14.4 to 14.6 ) is connected to the at least one first air duct ( 1 ) and the at least one second air duct ( 3 ) opens with its rear side into an exhaust air duct ( 21 ) common to all or several rooms ( 14.1 to 14.6 ). 13. Device according to claim 12, characterized in that the exhaust air duct is formed by a building area adjacent to the room or rooms to be air-conditioned ( 14.1 to 14.6 ), in particular a hallway ( 19 ), corridor or stairwell, wherein the at least one air guiding element ( 15 ) is arranged in a wall ( 18 ) separating the respective room to be air-conditioned ( 14.1 to 14.6 ) from the building area ( 19 ). 14. Device according to claim 13, characterized in that the exhaust air duct is formed by an intermediate space ( 21 ) delimited above a suspended ceiling ( 20 ) of the adjacent building area ( 19 ), wherein the at least one air exchange element ( 15 ) is arranged in the ceiling area above the suspended ceiling ( 20 ).