DE1679529A1 - Method and device for the supply of fresh air in rooms - Google Patents

Description

"Method and device for the supply of fresh air in PP.ume. " The rrfindunr relates to the supply of fresh air in rooms, especially gilro-sized! ume mitt underneath the front Z11r'SL @? Pise Ahustlkdecke arranged lighting and sub- half of these arranged grid ceiling elements. never the arrangement of the prescribed acoustic ceiling, under which the ßelightsun #, skMrrer and the other, there- down t-Pfindliche grid ceiling is known. the 7us, # additional grid ceiling has the task of creating an acoustic Absorption surface to give and view into lamps impede'. This allows open lamps to be mounted under the ceiling, since the suspended grid ceiling gives a 'diffuse,' non-dazzling light. The disadvantage of such additional grid ceilings is that they severely hinder the air conditioning of the occupied zone.

The invention is based on the task of the disadvantages-to -her To avoid air supply and to create such an arrangement, the very simple in its structure and operating theater, optimal climatic input, and in addition the multiple wishes of builders or architects over the architectural Design of the rooms takes into account.

The solution is to supply fresh air in rooms, in particular Large office rooms with lighting arranged below and below the acoustic ceiling these arranged -additional grid ceiling elements according to the invention v, proposed, - that the fresh air is supplied through channels of the grid elements.

With the proposal according to the invention, the fresh air through channels of the grid elements is achieved, -` that the air outlet is essential deeper than the heat pad under the ceiling and the. Fresh air supply, "below halves Thermal pad whose intensive suction does not hinder, since the inventive supply of the Fresh air below the warm air cushion neither moves nor cools it. Another The advantage is that with the solution according to the invention, the one component as a combination of light, acoustic and supply air outlet element suggests the occupied zone a room can be ventilated draft-free, since the resulting from the lighting Heat is eliminated. The heat loss of the lighting can namely in the area of origin be sucked off because the supply air according to the invention is below the lighting can exert no detrimental "influence on it.

The solution according to the invention also allows an economical one Supply air volume as it is suitable with a large temperature difference-between Supply air and room air suck in a large secondary room air flow. She is-still suitable to prevent accumulations of heat in the room by per-. and devices to dissipate an adjustable supply air volume in the supply air direction.

e .. Further advantages of the solution according to the invention are that the architectural design of rooms, in particular. of office space, is not impaired by the solution according to the invention and the solution according to the invention can be divided according to the building module, namely window grid - ceiling grid -y supply air outlet grid. Thus, when using the solution according to the invention, it is also possible to set up partition walls for individual rooms as desired.

The solution @ according to the invention also enables the greatest possible clear room height, as the distance between acoustics and grid ceiling is solely based on the lighting technology Can be measured from points of view.

According to another invention. Feature is suggested that the air supply lines to the grid elements through the in the acoustic ceiling arranged openings for the exhaust air takes place. This is a particularly small one technical effort. necessary But it can also be airborne. feed_to the Grid elements are made by their suspension arrangement in the form of tubes.

As a result, the fresh air is supplied over a very large area, which corresponds to the area of the extension of the grid elements, or substantially is equivalent to. By the exit of the fresh air on large, essentially over the The room is an evenly distributed area with a given amount of fresh air very low. so that gunä.chst 'exit noises are avoided: The ge. rings The exit speed also avoids the creation of a suction, so that the Warm air cushions in the many grid elements above the outlet openings is not influenced in such a way that it is carried along with the supply air or fresh air or through which fresh air is swirled. The inventive supply of The supply air is carried out in the manner of one that extends over the entire surface area of the room Veil. At the same time, the supply of fresh air is thereby also increased by the supply of fresh air Exhaust air is not obstructed, rather promoted.

According to a further inventive feature it is proposed that that in addition to the fresh air flowing out of the grid elements in the near Area of the window and fresh air directed from the bottom up is supplied. The aforementioned combination of fresh air supply from different directions it is ensured that there is no reduction in comfort.

According to a further feature it is proposed that the fresh air with constant constant or from a control center controlled predetermined Temperature in the room to be air-conditioned below the exhaust air level, in particular through the large number of grid ceiling elements, is supplied and the below the Blanket in the area of the permanent warm air cushion arranged exhaust duct is provided with two feed lines regulated by a room thermostat, in order to selectively Warm air from the area below the ceiling or room air from the lower area of the Room, especially in the area of the floor. By this proposal becomes possible by using additional heating of the fresh air supplied to be able to forego particular energy, because by controlling the discharge of the Warm air either in the upper area of the room or in the lower area of the room the supply air through the warm air in the room to the required temperature is heated: The proposal according to the invention makes it possible. the amount and also the altitude of the im. Located in the room. To control hot air and that the altitude optionally upwards towards the ceiling or downwards towards the floor out: The extraction of room air from the lower areas of the room can be done in different ways Way. If there are pillars in the room, they can be hollow be designed as drainage channels and in addition in the area of the floor with drainage inlets be provided. According to a particularly advantageous method, however, it is proposed that that the AbsauZung of the room air from the lower part of the room through hollow Post dreary columns between the windows. After another According to the invention feature is the suction of the room air from the lower areas of the room through window surfaces arranged at a distance between them. By this suggestion is given to insulate the windows against external influences. This allows for a separate air supply from a control center to shield the window surfaces can be dispensed with.

The device for carrying out the method according to the invention is characterized in that the grid ceiling elements are directed towards the ceiling Side with an air supply line and on its facing towards the floor of the room Side are provided with air outlet openings. TD! Ie cross-sections of the air supply lines can be round, but also angular. They are of shape for reasons of taste adapted to the grid elements, with the grid elements having many possible plan shapes can have. So they can be rectangular, square, triangular, but also in otherwise polygonal or round.

Two adjacent grid elements are particularly advantageous, with each grid ceiling element with a. assigned air supply line is to a common air supply line connected. Included is advantageous that side by side. arranged grid ceiling elements in the nearby Bereizii their mutually facing sides vertically upwardly directed supply lines have, which have an outer distance from one another that is slightly smaller is as the passage opening for the exhaust air in the acoustic ceiling and where above the two lines of the grid elements are fed to each other and of the acoustic ceiling open into the fresh air main line located below the load-bearing ceiling.

The air outlets in the grid elements preferably consist of a long slot that extends over at least one long side of a grid element extends. It is also advantageous within the elongated air supply duct in the @ grid element = baffles for even distribution of the air flow and to the inclined guide facing away from the exhaust air opening is available. The baffles within the air distribution duct or the air supply. dividing channels in a grid element. are advantageously arranged adjustable to the direction of the outflow Adapt fresh air from the grid elements to the given room conditions accordingly to be able to. The invention is shown in the drawings using an exemplary embodiment explained in more detail. It is not limited to the form of training shown, rather, further modifications within the scope of the invention are possible. 1 shows a vertical section through two floors of a building the arrangement of the solution according to the invention, FIG. 2 the arrangement of two grid ceiling elements with the Firschluftzufuhr in the view from above, Fig. 3 is a section through the Representation according to FIG. 2 corresponding to line 9 - A there, opposite in FIG larger representation, FIG. 4 shows a section through the arrangement according to FIG. 2 accordingly the local line B - B in Fig: 2 compared to a larger illustration, Fig. 15 the D illustration of the grid ceiling element with the supply line according to FIG. 4 in the view of above, Fig. 6 is a vertical section through a room with the arrangement that the Fresh air through two inlet lines with different air temperatures to be mixed 7 shows a vertical section through a modification according to the invention, Fig. 8 shows a vertical section through a further modification according to the invention.

The building has the ceilings 10, under each of which the acoustic ceiling 11 is suspended. Below this acoustic ceiling, those in Figs. R and 4 are special clearly shown lights 12 attached with the associated brackets 13 '. Underneath are the grid ceiling elements 14. So far, these only have the task of giving an additional acoustic absorption surface at the same time so, under the suspended acoustic ceiling 10 is arranged that the installed lighting 12 results in a diffuse, non-dazzling work light.

According to the invention it is proposed that the air conditioning of The necessary fresh air supply to rooms through the grid elements 14. In addition these "are each provided with fresh air supply lines 15 on their.. top side, according to the embodiment in the middle in the area of a longitudinal side of the grid element merge.

The cross-sections of these feed lines 15 can be of any desired size. They are the spatial shape of the assigned grid element. customized. According to Fig. 2 to 5, the cross-sections of the supply lines 15 are rectangular, inside one Grid element the feed line opens into a horizontal one -Current channel 16, which, according to the exemplary embodiment, extends over a longitudinal side of the grid element extends. Within this channel 16 are guide surfaces 17 and 18 arranged for the even distribution of the locally in a grid element incoming fresh air contribute within the grid element. Furthermore is within of the channel 16 with the slot-shaped, elongated outlet opening 19 an adjustable Baffle 20 arranged to the angle of reflection of the air flow indicated by arrows 21 to be able to change.

According to the embodiment shown in the drawings are the air supply ducts 15 on the mutually facing side edges of adjacent ones Arranged grid elements 14, 14a. They are brought up through an exhaust air opening 22 in the acoustic ceiling 11. The warm air flowing through the exhaust air opening or Used air is drawn off through the exhaust air line 21, which is shown in FIG. 1 is.

The two fresh air supply lines 15 leading through the exhaust air opening are carried out in the acoustic ceiling, @ are brought together above this exhaust air opening 22 and open via a T-shaped connection piece 24 into the main fresh air supply line 25th

In addition, a fresh air supply line 26 and: a branched off channel 27 in the near area below the window 28 from the floor of the room from fresh air in the indicated arrow direction from below to .above. guided.

The solution according to the invention brings about the supply of fresh air more evenly Distribution without the hot air extraction above the fresh air supply to disturb or influence. In addition, the fresh air supply is through: the grid ceiling elements not noticeable without looking closely. The solution according to the invention is permitted Furthermore, partitions 29 can also be set without structural changes.

Fig. 6 shows the supply of fresh air through the grid elements 14-mit the proviso that the fresh air is supplied from two lines, namely the line.30 and the line -31, -the associated branches 32 and 33, which in a mixer 34 open, so that they can flow from there via line 24 in the manner described above from the openings in the grid elements 14, in particular in the form of elongated ones Slots, emerge, like the one in the specified care direction for the fresh air, 2: 1 is shown. The fresh air can also be directed vertically from top to bottom step out. About the adjustable room thermostat 35, the temperature of the supplied Fresh air 21 regulated in the following way: The fresh air to be supplied to a room should have a low moisture content. to achieve this for him will the fresh air to be supplied is cooled, preferably to 12 ° C, because it is cold air a has a lower absorption capacity for moisture than warm air. This cold air preferably a temperature of only 12o C, but the room usually cannot because it is too cold. In order to achieve a warm-up, this will Cold air is supplied through line 31 @ warmer air with the warmer air being obtained can be through part of the cold air of, for example, 120C, which is diverted into a Line was heated by applying energy via a heat exchanger. The cold air flowing through line 30 and the warmer air flowing in through line 31 Air is brought together in the mixer and depending on the setting of the thermostat 35, which acts on valves corresponding to line 30 and line 31, takes place a mixture of the cold air and the heated air, so that depends on this Mixing ratio the @ Firischluft 21 of the desired temperature from the grid ceiling elements ,exit. The exhaust air, that is to say the warm air present above the exhaust air level 36 Air that is heated by the lighting and the pergons in the room or other heat-emitting machines or the like. Is received via the exhaust air line 37 dissipated, the above the grid ceiling elements 14 and above the warm air level 36 is arranged. The exhaust air and its flow are shown in jagged arrows. In order to avoid influences of the outside temperature on the room to be air-conditioned, According to FIG. 6, there is another supply air line 26 which pre-regulates a fresh air Temperature, from passes downwards along the window front 28, as is also described for Fig.-1. The temperature control described above at the supply of fresh air for the mixer 34 is disadvantageous because a special Energy. must be expended to the fresh air of increased temperature through the the line 31 is supplied to warm up.

The basic proposal according to the invention, the fresh air over a large area To feed below the exhaust air level 36 through the grid elements 14, there is the further Possibility of preheating the line 31 to dispense with fresh air to be supplied.

The measure according to the invention for dispensing with the special preheating of the fresh air to be supplied can be seen in FIG. 7. In FIG. 7, the air supply line 31 is missing because no warm air is supplied to the fresh air supplied from the line 30. The regulation of the room temperature is carried out by S di_e regulating the exhaust side and thus by adjustable exhaust air quantities in connection with basically two different zones, of which, optionally, the exhaust air is taken off. In order to achieve this, a mixer 38 is connected to the exhaust air line 37, the control of which is also carried out via a room thermostat 35, which can be adjusted accordingly. The mixer 38 has two inlets for the exhaust air, first the inlet 39 for extracting the exhaust air above the warm air level 36 and an inlet 40 for extracting room air from lower areas of the room, especially at floor level 41. The room air from the lower areas of the room can be withdrawn are provided by columns that are present in the room and are hollow and have corresponding inlet openings in their lower regions. Since these columns are often not present, however, it is proposed according to FIG. According to Fig. 7, independent of the mixing device 38, there is another inlet 44 for the warm air 45 directly on the exhaust air line 37 ', which can also be closed Heating of the inner window surfaces the supply of appropriately regulated fresh air via the line 26 in the form of an air curtain 46 that sweeps past the inner window surfaces supplied to a control center at a pre-regulated temperature. If, regulated by the thermostat 35, no warm air heated by the lighting energy is withdrawn above the warm air level 36, then the warm air cushion moves downward over time. This downward migration of the warm air cushion is accelerated by drawing off the room air from lower areas in the manner described above, particularly advantageously through window pillars. However, again controlled by the thermostat 35 and the mixing device 38, the warm air above the fragrance level 36 can be drawn off through the inlet 39 of the mixing device 3.8 via the exhaust air line 37 or via the inlet opening 44 located directly on the exhaust air line 37 As a result, the warm air cushion is broken down and the room then becomes correspondingly cooler. If the warm air cushion is pulled down into the area of the locking elements, then the cold air supplied is mixed with the warm air. According to the present invention, an individual room temperature is thus possible through the optional utilization of the lighting energy.

Fig. 8 shows. an arrangement which in its principle of those after Fig. 7 corresponds to. but with the further modification that the room air 42 between at a laterally spaced opposite window surfaces 28, 47 carried out is, whereby ei, d a13 outer window 28 preferably consists of two panes. Consequently the window surfaces are shielded by the heat exhausted from the room, Bo that the special air supply shown in FIGS. 6 and 7 through lines 38 is not necessary to `shield the window surfaces.

The solution according to the invention makes it unnecessary that the supply air temperature is above Centrally or room-side arranged hot water radiators more or less Load fluctuations is reheated because it is proposed according to the invention that Use exhaust air heat for local heating of the supply air temperature.

Claims (13)

Pä t e n t a n s r ü c h e 1. Method for supplying fresh air in rooms, especially large office rooms with those arranged below the acoustic ceiling Illumination and underneath these arranged ceiling elements, d a d u -r c h e k e n n n n e i c h n e t that fresh air - through channels of the grid elements : (14) is fed through. 2. The method according to claim 1, d a d u r c h g e -k e n ri -z ei c h n e t that the air supply lines (15) to the grid elements (14) through the openings (22) for the exhaust air arranged in the acoustic ceiling (11) he follows. 3. The method according to claims 1 and 2, d a d u r c h g e k e n n z e.i. c h n e t that the fresh air from the grid elements (14) from large, Over the grid elements distributed openings (19) exits and obliquely in the direction is directed downwards away from the exhaust air openings (22) in the acoustic ceiling (11). 4. The method according to claim 1, characterized in that the air is supplied to the grid elements through their suspension arrangement in the form of tubes. 5 .. Method according to claims 1_ to 4, d a d u r c h characterized that in addition to that from the grid elements (14) outflowing fresh air in the vicinity of the window (28) and from below fresh air directed upwards. is fed. 6. The method according to claims 1 to 5, that the fresh air from a control center from fed with a constant constant or pre-regulated temperature into the Room T to be air-conditioned below the exhaust air level, in particular due to the large number the grid ceiling elements is fed and the below the ceiling in the area of the Permanent warm air cushion arranged exhaust air duct with two, through a room thermostat Controlled supply lines is provided to selectively warm air in the area below the covering of room air from the lower area of the room, especially in the area the floor to vacuum. 7. The method according to claim 6, d a d u r c h g e k e n n -sign that the suction of the room air .from the lower area of the The space is made by hollow posts or pillars between the windows. B. Method according to claim 6, d-a d u r c h g e k e n n -z e i c h n e t that the The room air is extracted from the lower area of the room via a duct, which is limited by two spaced apart window areas. 9. Device for carrying out the method according to claims 1 to 8, d a d u r c h g e k en n e i c h n e t that the grid ceiling elements (14) on their to Ceiling-facing side, with ener Luftzuführüngsleitung (15) and on her to the floor the side facing the room are provided with air outlet openings (19). 10. Device according to claim 9, d a d u r c h g e k e n n -z e i c h n e t that two adjacent Grid ceiling elements (14, 14a) on a common air supply line (24, 25) are connected. 11. Device according to claims 9 and 10, d a d u r c h it is noted that two grid ceiling elements arranged next to one another (14, 14a) in the vicinity of their mutually facing sides vertically upwards have directed feed lines (15) which are at an outer distance from one another have, which is a little less than the passage opening -. :( 22) for the exhaust air The two supply lines are in the acoustic ceiling (11) above the acoustic ceiling (11) (15) of the grid elements (14) fed to one another and in the underneath the load-bearing ' Leaky arranged fresh air main line (25) open. 12. Device according to the claims 9 to 11, d a d u r c h e k e n n n n e i c h n e t that the air outlets (19) consist of the grid elements (14) from a slot that is above a longitudinal side of the. Raster element (14) extends and within the over a longitudinal side of the grid element extending air supply channel (16) baffles (17, 18) for the even distribution of the air flow and for its o oblique, from the exhaust opening (22) directed away guidance are available 13. Device according to claims 9 to. 12, that a baffle plate (20) adjustable within the air distribution channel (16) in the grid element (14) is arranged