DE3204350A1 - Device for air-conditioning rooms, in particular office rooms, according to the induction principle - Google Patents

Abstract

An induction device, in the breast region of a window, used according to the induction principle, for air-conditioning rooms, in particular office rooms, has passage openings for room air to flow through the housing of the induction device. To improve the air-conditioning of the room, the window breast device (1, 1a) has a first air-distributing chamber (9) with connection to a pipe (11) conducting a constant basic volume flow and a further air-distributing chamber (14) with connection to a pipe (18) conducting a variable air flow. The air outlet openings (10, 15) of the two air-distributing chambers (9, 14) are arranged in relation to one another in such a manner that the variable air flow as well as room air (27) are inducted by the air blown out of the first air-distributing chamber (9). Such an air system makes possible exclusive air-conditioning from the window breast with window screening and room conditioning. <IMAGE>

Description

FROM KREISLER SCHONWALD EISHOLD FUES FROM KREISLER KELLER ¹ / SELTING WERNER

PATENT LAWYERS Dr.-Ing. by Kreisler + 1973

Dr.-Ing. K. Schönwald, Cologne

Dr.-Ing. K. W. Eishold, Bad Soden

Dr. J. F. Fues, Cologne

Dipl.-Chem. Alek von Kreisler, Cologne

Dipl.-Chem. Carola Keller, Cologne

Dipl.-Ing. G. Selting, Cologne

Dr. H.-K. Werner, Cologne

8.2.1982. Sch / Sd

DEICHMANNHAUS AT THE MAIN RAILWAY STATION

D-5000 KULN 1

Brandi Ingenieure GmbH, Max-Planck-Str. 2-4, 5000 Cologne 40

Device for air conditioning rooms, in particular offices, based on the induction principle

The invention relates to a device for air conditioning of rooms, especially office rooms, based on the induction principle, primarily as a device in the parapet area a window, wherein the device or the device has passage openings for the flow of room air into the housing the device and the like.

Induction devices in the parapet area of a window for air conditioning a room are available in different designs known. They are generally structured in such a way that that they part of the thermal room load via a water cycle, either via a two-pipe or multi-pipe system dissipate. This usually leads to extensive and complicated water networks. Window blowing systems are operated with air and

Telephone: (0221) 131041 ■ Telex: 8882307 dopa d ■ Telegram: Dompaten) Cologne

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for window screening in fully air-conditioned, permanently glazed Buildings applied. Here, such a device only has the task of reducing the cold influence of the glazed To compensate for surfaces and to avoid condensation water and the exchange of radiation between room users and by creating the necessary internal glass surface temperature To raise the disc in reasonable interrelationships. Such window blowing systems are only designed for part of the room load, are controlled centrally and only supply the immediate window area. There is also a second type of air supply required, which consists of an actual air conditioning system, which is separate from the window blowing system . the room climate is determined by the temperature control.

The object of the invention is to provide a device for air conditioning to create rooms in which the window is shielded against heat or cold (transmission and leaks) and the air conditioning of the room are combined in a simple manner and in particular in the Possibility of opening a window is energy efficient. . The invention is distinguished in the device of the beginning Said.Art characterized in that the window sill device has a first air distribution chamber with a connection to a one Line carrying a constant basic volume flow and a further air distribution chamber with connection to a variable secondary air contains leading line, and that the air outlets of the two air distribution chambers are arranged to each other so that the secondary air and room air through the induced air blown out of the first air distribution chamber will.

Such a design of the window parapet device is created the possibility to use an air system,

which is effective only from the pen parapet and the ' Window shielding and room conditioning is carried out at the same time. At the same time it is a "dry" system, i.e. with the elimination of water pipes in utility areas. It is compulsory for every room when the window is closed a minimum air flow is supplied. The individual temperature control between the rooms is achieved by an additional variable air flow, which is the minimum air flow is admitted. The result is a volumetric flow-variable system with an air delivery system and a guaranteed minimum air exchange in the room. From the parapet, room depths of up to a little more than 7 m can be flow-stable and even be ventilated in the case of low supply air volumes to the parapet unit. The parapet air outlet works according to the induction principle, i.e. the air brought in from the system takes in a coordinated air duct inside the device housing Room air forced to circulate and mix with. At the same time there is the possibility of opening the window given, with the window parapet device in question switched off from the supply air and also with regard to the exhaust air where an air reduction can also be useful for the exhaust air. You can still achieve economical energy consumption, because the windows can remain closed and the waste heat can be recovered from the return air. If that If the window is opened, the air, air and heat or cold supply to the room is switched off.

The air outlet nozzles are used to ensure the induction principle the first air distribution chamber and the other Air distribution chamber in the same induction shaft of the housing directed. A basic volume flow is used according to the induction principle fed to the room. With this basic volume flow, sufficient room ventilation is ensured, via the further air distribution chamber with air outlets in parallel or as parallel as possible to the nozzle-shaped outlets of the

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first air distribution chamber, the basic volume flow from a variable Riable volume flow added. Here the impulse of the air from the air passages of the further air distribution chamber should be be kept so weak that the basic volume flow is hardly influenced by a strong impulse.

• According to a further feature of the invention, the feed line a control element for the further air distribution chamber have, which is in communication with a room thermostat and is controlled by this. The feed line for the first air distribution chamber there is also a control element, which is connected to a switch of an open window. Both supply lines can be connected to one common air supply line must be connected.

"The window parapet device as a supply air device based on the induction principle is advantageously operated in such a way that the Zulu ftvolume flow in a constant basic volume flow and a variable controllable volume flow is divided. The basic volume flow is the one with a high energy pulse is blown out, the air flow through the room is safe and covers the basic thermal loads. The variable volume flow is blown out with a low energy pulse and induced by the basic volume flow. It covers the thermal peak load of a room.

The devices with the same or similar thermal loads to be compensated can be caused by an air flow of the same thermal Pre-regulation are supplied.

The invention is explained below with reference to the exemplary embodiments shown in the drawing.

Fig. 1 shows a window parapet device operating according to the induction principle in one embodiment according to the invention in section and in the scheme.

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Fig. 2 serves to explain the arrangement and distribution of the air distribution chambers on a window front of one Room, schematically.

Fig. 3 illustrates a further embodiment of a window sill device of the air supply according to the invention according to the induction principle with associated supply lines in the scheme.

4 and 5 show two further embodiments of the window parapet device represent.

The device for air conditioning rooms, in particular offices and the like, according to the induction principle has a • Window parapet device 1, which has a housing 2, in the passage openings 3 for the flow of room air in the interior of the housing 2 are provided, wherein the passage openings 3 can be divided into slots. In the upper cover 2a of the housing 2 are provided outlets 4 for the supply air to the space 5, which are generally shown in FIG Form of a grid are formed. The device is conveniently located on a wall 6 in which window 7 is provided could be.

The air induction device 1 has a first air distribution chamber 9, which is provided with outlets 10 in the form of a nozzle over the length of the chamber. This air distribution chamber 9 is provided with a connecting line 11, which is from a line 12 goes off, which leads to a constant basic volume flow.

The housing 2 also has a further air distribution chamber 14, which are equipped with air outlets 15 of a simple type · Above the air distribution chambers 9 and 14 is a common air flow duct 16 arranged to the Zulufhaualaßöffnungen 4 of the housing 2 leads, the Shaft 16 on the side facing the room through a

Wall 17 is limited. The air distribution chambers 9 and 14 are arranged to each other so that the from the nozzles 10 of the air distribution chambers 9 exiting basic volume flow induces the variable volume flow that comes from the further air distribution chamber 14 can exit through the outlets 15. The variable volume flow is induced here, room air can also be induced through the slots 3 of the housing 2. The impulse of the air out the air vents 15 is kept so weak that the Basic volume flow with strong impulse from the nozzles 10 hardly being affected. Leads to the further air distribution chamber 14 a line 18 which can be fed by the line 12.

The supply line 18 to the further air distribution chamber 14 has a control element 19, e.g. in the form of a throttle valve, on that with a room thermostat 20 via a switch (Relay) 21 is in communication. The supply line 11 to the first air distribution chamber 9 is also with a Control member 22 equipped. This is connected to a relay 23, which depends on the position of the associated Window, namely open or closed, acts on the control element 22 via a switching device .24, a connection to the room thermostat 20 being provided is. The line 25 provides a common air supply line for the branch 12 and the branch lines 11 and 18 represents.

The induction parapet device 1a of FIG. 3 corresponds to Basic structure of the device of FIG. 1, the same parts being provided with the same reference numerals. With this device is the further air distribution chamber 14 above the first Air distribution chamber 9 arranged. Here, the further air distribution chamber 14 on the side facing the shaft 16 have a flap-like side part 26, depending on

induction by the primary air flow from the first air distribution chamber 9 opens more or less, with more or less secondary air being induced. Here is also return air 27 from the space 5 into the air flow shaft 16 with induced. At 28 is the incoming air entering the room designated.

The supply line 25 can through a central ventilation device 29 can be fed with adjustable delivery volume. A control cabinet is designated with.

Because the basic volume flow has a high energy pulse blown out of the nozzles 10 of the first air distribution chamber 9 sufficient room ventilation is achieved, whereby the thermal base load for the room is covered. From the further air distribution chamber 14 there is a variable one Volume flow with a low energy pulse into the interior of the device housing 2, the amount of the volume flow as a function is forcibly controlled by the room temperature by means of the thermostat. The variable volume flow is controlled by the Induced basic volume flow and serves to cover the

20 · thermal peak load of the room. That way you can individual room temperature requirements can be met or different loads can be compensated. Rooms or devices with the same or approximately the same thermal boundary conditions can expediently from a total volume flow of the same pre-regulation are supplied. It is also possible that groups of devices at a moderate outside temperature and at low thermal loads in favor of window ventilation Closure organs are switched off. When opening a window the ventilation of the room is switched off via the switch

30. switches. This leads to a substantial saving in energy. A further switch to be operated by a person in the room can also be provided in the room, so that

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when opening the window automatically or via the other Switch the ventilation of the room can be switched off as desired.

4 and 5 are two further embodiments of the Air conditioning device shown, in which it is achieved that it is prevented with certainty that different Air volumes may result in pressure changes in the devices.

According to FIG. 4, the two air distribution chambers 9, 14 common air supply line 12, a pressure regulator 32 is arranged, with which a window switch 33 cooperates. That in the supply line 18 to the further air distribution chamber 14 located control element 34 is in connection with a room thermostat 20.

A pressure regulator 32 maintains the nozzle pre-pressure via a pressostat 35 constant in the distribution chamber 9, independent of changing system pressures and independent of the volume flow, which flows through the regulator 32. The pressure regulator 32 becomes advantageous supplied with compressed air via a window switch 33. If the window switch 33 is opened, the controller 32 hermetically sealed. Via the control element 34, which is connected to a room thermostat 20, the distribution chamber 14 supplied with variable volume flow. Since the form of the regulating element is also constant in the case of line 18, the one requested by the room thermostat also remains Volume flow constant. ■

Fig. 5 shows a further embodiment of the window parapet device to ensure constant pressure conditions. A volume flow regulator is located in the air supply line 12 36 with a window switch 33 and a room thermostat 20 in connection. In the supply line 18

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A simple, automatic control flap 37 that works without auxiliary energy can be connected to the further air distribution chamber 14 be provided with a counterweight 37a.

The volume flow controller, which is controlled by a thermostat 20 and the window switch 33 and is independent of the system pressure 36 supplies the distribution chambers 9 and 14 with supply air. The partial volume flow to the further air distribution chamber 14 flows via the automatic control flap 37. The counterweight 37a is advantageously adjusted so that there is a minimum volume flow of the regulating member 36 die'Regelklappe 37 is closed while it is fully open at the maximum volume flow. The partial volume flow flowing into the air distribution chamber 9 remains constant in this control range.

Claims (11)

320 '"■■ () Expectations f 1.! Device for air conditioning of rooms, in particular offices and the like., According to the induction principle, primarily as a device in the parapet area of a window, the device or the device passage openings for the flow of room air into the housing of the device and the like. characterized in that the window sill device (1,1a) has a first air distribution chamber (9) with connection to a line (11) carrying a constant basic volume flow and a further air distribution chamber (14) 'with connection to a line carrying a variable air flow ( 18) contains, and that the air outlet openings (10; 15,26) of the two air distribution chambers (9, 14) are arranged to each other so that the variable air ■ flow and room air (27) through the blown out of the first air distribution chamber (9) Air is induced. 2. Apparatus according to claim 1, characterized in that the air outlet openings (10, 15) of the first air distribution chamber (9) and the further air distribution chamber (14) are directed into the same induction shaft (16) of the housing (2), and that the air outlet openings (10) the first air distribution chamber (9) designed as nozzles are. 3. Apparatus according to claim 1 or 2, characterized in that the feed line (18) to the further air distribution part chamber (14) has a control element (19) which is connected to a room thermostat (20). 4. Device according to one of claims 1 to 3, characterized in that that the feed line (11,12) to the first Air distribution chamber (9) has a regulating member (22), the one with a switch (21) of an open window (7) and / or is connected to a further switch provided in the room. 5. Device according to one of claims 1 to 4, characterized in that that the supply lines (11,18) to a common supply line (25) are connected. 6. Device according to one of claims 1 to 5, characterized that several window sill devices (1,1a) are combined into a device group, and that the Device groups can be switched off together by means of window switches. . Device according to claim 1 or 2, α3αμΓσ! Ι characterized, that a pressure regulator (32) is arranged in the two distribution chambers (9, 14) common air supply line (12) is, which is connected to a window switch (33), and that in the supply line (18) to the control element (34) located in the further air distribution chamber (14) is connected to a room thermostat (20). 8. Apparatus according to claim 7, characterized in that the pressure regulator (32) is connected to a pressostat (35) 'that is. 9. Apparatus according to claim 1 or 2, characterized in that that in the two air distribution chambers (9, 14) common supply line (12) a volume flow regulator (36) is arranged, which is connected to a window switch (33) and a room thermostat (20), and that in the supply line (18) to the further air distribution chamber (14) an automatic control flap (37) is provided. 320- ¹ D - 1-2 - 10. Apparatus according to claim 9, characterized in that the automatic control flap (37) is provided with a counterweight (37a). 11. A method for air conditioning rooms, in particular offices, using the induction principle The aid of window parapet devices according to one of Claims 1 to 10, characterized in that the supply air volume flow is divided into a constant basic volume flow and a variable controllable volume flow, and that the basic volume flow with blowing out with high energy impulses ensures the air flow through the room and the thermal Covering base loads, while the variable volume flow is blown out with a low energy pulse, from the base volume flow is induced and covers the thermal peak load of a room.