SE532506C2 - Method and apparatus for ventilating a space - Google Patents

Description

532 EÜE 2 According to an embodiment of the method, the recirculation of the room air comprises flow of room air from the space into the device through the first flow area of the first battery and temperature change with a heating circuit arranged in the battery.

Through the induction effect, room air is drawn up through the battery and into the device. An effect of this is that room air can thus change temperature with the battery, whereby part of the room air can thus obtain a higher temperature after passage through the battery.

According to a further embodiment of the method, the recirculation of the room air comprises flow of room air from the space into the device through the first flow area of the first battery and temperature change with a cooling circuit arranged in the battery. An effect of this is that room air can thus change temperature with the battery, whereby part of the room air during temperature change with the battery can obtain a lower temperature when passing through the battery. According to one embodiment, the temperature in the cooling circuit can be regulated in such a way that the degree of temperature change can be regulated from cooling to not being active and thus not temperature change with the room air flowing through the battery.

According to a further embodiment of the method, the recirculation of the room air comprises flow of room air from the space into the device through a second flow area in the first battery and temperature change with at least one heating circuit and / or cooling circuit arranged in the first battery. An effect of this is thus that some room air at its entry into the device may have been cooled and / or heated to be mixed inside the device with room air to an outlet air with a temperature which is determined by how much temperature change takes place between the battery and the battery flowing rumsiuft.

Tempered parts of room air in the device can then flow in different directions into the space, the device having outflowing first air in a first air direction with a first temperature and second exhaust air in a second air direction with a second temperature in a second air direction.

According to a further embodiment of the method, the recirculation of the room air comprises flow of room air from the space into the device through a second flow area in a second battery in the device and temperature change with at least one heating circuit and / or cooling circuit arranged in the second battery. An effect of using two parallel batteries arranged next to each other is that it in a simple way provides the number of possibilities for how to use the respective battery temperature change of a flowing room air. BI.a. For example, both batteries may be allowed to cool, or one battery for cooling and one battery for heating, or use both batteries for heating.

According to a further embodiment of the method, the recirculation of the room air comprises flow of a first volume of room air through the first flow area is less than flow of a second volume of room air through the second flow area. An effect of this distribution is that if there is too much heated air in the exhaust air out of the device, this results in that there is not a sufficient amount of cooled exhaust air which can sink down to the floor and thus obtain a sufficient efficient mixing of room air.

If the volume of heated exhaust air becomes too large in the room, it can result in the hot exhaust air settling as a lid in the space over old room air, whereby efficient mixing and exchange of the room air is made more difficult.

According to a further embodiment of the method, the flow of exhaust air in the first exhaust air direction comprises accumulation of the exhaust air in a zone which adjoins an upper area of the cooling surface. The accumulation of exhaust air in the zone includes cooling of the exhaust air in the zone and continuous movement of the cooled exhaust air in a direction from the zone to the floor, along the cooling surface. The flow of exhaust air in the second exhaust air direction comprises flow of the exhaust air in the direction from the device towards the wall surface and at the wall surface continuous continued movement of the exhaust air along the respective wall surface towards the floor. An effect of the heated exhaust air accumulating in said zone is that it is thereby caused to be slowly cooled by the cooling surface. The cooled air then falls continuously down to the floor along the cooling surface at the same time as the zone is continuously filled with new exhaust air from the first air direction of the device. At the same time, on other surfaces, cooled or unchanged temperate air flows along the wall surfaces down to the floor and is moved across the floor towards the cooling surface. By the air moving towards the cooling surface, it is prevented that cooled air from the cooling surface is caused to flow over the floor. instead, the air from the cooling surface and the other wall surfaces is mixed. This method prevents so-called is called, namely that a user in the room has the feeling of it blowing in the room. A cooling surface can in a space e.g. consists of a window.

Air that is cold is heavier than air that is heated, warm. This results in cold air in a space striving to fall downwards while hot air in the space has a tendency to rise upwards. This is utilized in the present invention by causing cooled exhaust air to flow out of the device in the direction of wall elements inside the space. The cooled exhaust air that enters the room is colder than the room air in the room and is therefore heavier. Due to the higher weight of the cooled exhaust air flowing towards the wall elements, the cooled exhaust air from the device inside the space at the wall elements will fall downwards towards the floor. If the device is placed in the ceiling in a large room, the cooled air can begin to fall to the floor even before it has reached the wall elements due to its higher weight compared to the room air in the room.

According to a further embodiment of the device, a second flow area in the first battery is provided. In the battery, the first and second flow areas are arranged next to each other. Together, the first and second throughput areas form a surface that can be compared to a common throughput area 532 5GB 4 throughput area. The flow-through areas are facing the room, the recirculating room air flowing up and into the device through said areas.

According to a further embodiment of the device, part of the first battery with the first flow area comprises a heating circuit configured to change temperature with the recirculating room air. Air passing through this part of the battery is sucked up and into the device by the induction action. Inside the device, the heated room air is mixed and combined with the supply air that has entered the device. Due to the inflow of supply air into the device, there is overpressure inside the device in relation to the air pressure in the space. The overpressure in the device means that the supply air in an efficient manner by allowing the supply air in the device to pass through a destroyer in the device obtains a flow of supply air through the device which is mixed with the recirculating room air to an exhaust air, which exhaust air is led into the space via directional means The part of the battery that heats the flowing recirculating room air is located on one side of the battery. This results in recirculating room air flowing into the device on this side of the battery also flowing out of the device into the space mixed with supply air on the same side of the device.

According to a further embodiment of the device, part of the first battery with the second flow area comprises a cooling circuit configured to change temperature with the recirculating room air. The temperature in the cooling circuit can be regulated in such a way that it can be caused to change temperature with the room air by absorbing heat from the room air to varying degrees and by not being active, whereby no temperature change with the room air takes place. In the latter case, only room air flows through the battery and is then combined and mixed with the supply air to a common outflow of exhaust air.

According to a further embodiment of the device, the first flow area is smaller than the second flow area. An effect of this is that a larger volume of cooled room air than the volume of heated room air can enter the device.

By this distribution it is obtained that the volume of heated air in the exhaust air from the device does not exceed the volume cooled in the exhaust air from the device. Should the volume of heated exhaust air be too large into the space, this may result in the hot exhaust air settling as a lid in the space over old room air, whereby efficient mixing and exchange of the room air is thereby made more difficult.

According to a further embodiment of the device, a second flow area is arranged in a second battery arranged in the device, which second battery comprises a heating circuit or cooling circuit configured to change temperature with the recirculating room air through the battery. In addition to the effect of a second battery mentioned earlier in the text above, e.g. an advantage of this embodiment is that it makes it possible to manufacture two identical batteries with input tubes adapted for only one type of heat-exchanging liquid fl fate. This thus simplifies the process of manufacturing the batteries since the respective battery can be used either for the flow of either a cooling medium or a heating medium for temperature change with a flowing room air.

According to a further embodiment of the device, the battery comprises at least a first pipe part and at least a second pipe part, which advantages extend through the battery at at least two different levels relative to ceilings or floors, which advantages through the battery are parallel to each other, which pipe parts are configured to pass at least a first medium through the battery with at least a first temperature for temperature change with a room air flowing through the battery. Furthermore, the flow in the respective advantage can be regulated to either close a fate through a pipe part or open up to a fate through an advantage.

Because the pipe parts are arranged in different levels in the battery, it is possible to regulate the temperature in the battery in different levels. An advantage of this is that the flow distance as a room air flowing through the battery can thus be regulated.

According to a further embodiment of the device, the heating circuit is arranged in the battery in a first plane, which first plane extends between two second planes, in which two second planes the cooling circuit is arranged. The plan is horizontal in the device and substantially parallel partly to each other and partly to the ceiling and floor. The heating circuit is positioned on one side, a part, of the battery, and extends in a first flow area in the battery. According to this embodiment, the cooling circuit is positioned over the entire flow area of the battery in a second flow area. Seen from the space up and into the device, the second flow area overlaps the first flow area. An effect of the second flow area extending over the entire battery is that the entire flow area of the battery can thus be used for cooling since the cooling circuit extends over the entire flow area of the battery. The cooling circuit can be regulated in such a way as to be active only for cooling in those parts / areas of the battery which do not include a heating circuit.

According to a further embodiment of the device, the device is configured to be arranged in the ceiling in such a way that the heating circuit has a distance to the cooling surface which is shorter than the distance from the cooling circuit of the device to said cooling surface. Through such an orientation it is obtained that the heated outflow is directed towards the cooling surface and that the cooled outflow is directed towards the other wall surfaces, whereby the ventilation effect is optimized compared with traditional ventilation devices.

Brief Description of the Drawings A preferred embodiment of the device and method according to the invention will now be described in more detail with reference to the accompanying schematic drawings, which show only the details necessary for understanding the invention.

Fig. 1 shows a device comprising a battery for ventilating a space. 10 15 20 25 30 35 532 505 6 Figs. 2a-c show three views of a battery configured for use in a ventilation device.

Fig. 2d-e shows two views of a battery configured for use in a ventilation device.

Fig. 3 shows a device comprising two batteries for ventilating a space.

Fig. 4 shows the method of ventilating a space with a traditional ventilation device.

Fig. 5 shows a method of ventilating a space with a ventilation device according to the invention.

Detailed description of different embodiments of the invention Fig. 1 shows a ventilation device (1) comprising receiving means (2). which receiving means is arranged to be connected to a supply air element (H). The supply air element (H) forms part of a system, to which system the device (1) is connected, which system supplies and transports supply air (6) to the device (1). The device (1) further comprises a first battery (3a) comprising a first flow area (4a). Part of the device (1) adjacent to the space (A, see Fig. 5) comprises direction means (5). The purpose of the directing means (5) is to direct a mixture of supply air (6) and recirculating room air (7) into the space (A). This mixture is called exhaust air (8). The directing means (5) is arranged to direct the exhaust air (8) in at least a first exhaust air direction (9a) and at least in a second outlet air direction (9b) into the space.

The device according to Fig. 1 is mounted in a ceiling (B) in the space. According to one embodiment, the directing means (5) can be designed as a sun-like directing means (not shown in fi gur), the exhaust air (8) being directed 360 degrees out of the device (1) into the space (A). According to an alternative embodiment, the exhaust air (8) is directed to flow in four directions out of the device (1) towards surrounding wall elements in and to the space (A), wherein two adjacent directions between each other substantially form about 90 degrees.

Figs. 2a - 2c show a first battery (3a) in three different views.

Fig. 2a shows a view of the battery (3a) seen from the front into a lower transfer surface on a first plate arranged in the battery (3a) with subsequent plates arranged one after the other. Fig. 2a shows a heating circuit (10) and a cooling circuit (11).

Fig. 2b shows a view of the battery (3a) from the side with the short end of each plate in the battery (3a) facing the viewer. In the view shown in Fig. 2b, only the cooling circuit (11) is seen. This is because the heating circuit (10) in the fi clock is arranged behind the cooling circuit (11), it being not visible in the view shown. Fig. 2b shows how first pipe parts (12a) and second pipe parts (12b) extend through the battery (3a) in at least two different levels and in parallel with each other.

Fig. 2c shows a view of the battery (3a) seen from below. This part of the battery (3a) is the part that faces the space (A) when the battery (3a) is arranged in the ceiling (B). Fig. 2c 10 15 20 25 30 35 532 5GB 7 shows how the other pipe parts (12b) extend through the battery. The first pipe parts (12a) are visible in Fig. 2c because they are covered by the second pipe parts (12b). The flow area of the battery (3a) comprises a first flow area (4a) and a second flow area (4b). The flow areas (4a, 4b) are arranged next to each other in the battery and for a viewer they can be compared together, or perceived as a flow area. The first flow area (4a) is smaller than the second flow area (4b). In the first flow area (4a) the friend circuit (10) extends. In the second flow-through area (4b), the cooling circuit (11) extends.

Each pipe part (12a, 12b) is configured to be passed through by either a heating or cooling medium, e.g. water or other liquid that can transport and temperature change with an air flowing through the battery (3a).

The first flow area (4a) can be regulated in that the number of pipe sections (12a, 12b) which are flowed through by a heating medium can be regulated to become either fl or fewer pipe sections (12a, 12b). This is regulated by the fact that the gap through the respective pipe part (12a, 12b) is arranged with an element which can either open or close the gap in the pipe parts (12a, 12b). Correspondingly, the second flow area (4b) can be regulated.

Figs. 2d - 2e show an alternative embodiment of a first battery (3a) in two different views.

Fig. 2d shows a view of the battery (3a) seen from the front into the heat transfer surface of a first plate arranged in the battery (3a) with subsequent plates arranged one after the other. Fig. 2d shows a friend circuit (10) and a cooling circuit (11). The heating circuit (10) is arranged in the battery (3a) in a first plane (1). The first plane (I) extends between two second planes (II), in which two second planes (II) the cooling circuit (11) is arranged. In Fig. 2d, the respective pipe part for each circuit (10, 11) extends straight into the figure, what is shown in the figure being ends of the pipe parts (10, 11) of the circuits (10, 11).

Fig. 2e shows a view of the battery (3a) seen from below in the same way as for the one described above for Fig. 2c. In this embodiment according to Fig. 2e, a first flow area (4a) and a second flow area (4b) are shown. The first flow-through area (4a) is arranged in the under clock below, for a viewer in the space above, the second flow-through area (4b), whereby for a viewer in the space only the second flow-through area (4b) can be seen.

Each pipe section is configured to be passed through by either a heating or cooling medium, e.g. water or other fl surface liquid that can transport and temperature change with an air flowing through the battery (3a).

The first and the second flow area (4a, 4b) can be regulated in that the number of pipe sections which are flowed through by a heating medium can be regulated to become either fl or fewer pipe sections. This is regulated in the same way as previously described. Fig. 3 shows an embodiment of the invention where the device (1) comprises a second battery (3b). This second battery (3b) is arranged parallel to the first battery (3a).

In terms of construction, the first and second batteries (3a, 3b) are equal to each other. Each battery (3a, 3b) each comprises at least one circuit to be able to either heat or cool an air flowing through the respective battery (3a, 3b) and into the device (1).

Fig. 4 shows a delimited space which is ventilated in the traditional way with known ventilation device mounted in the ceiling of the space and which device flows out air in a number of directions into the space with a temperature. An effect of the use of such a known device and such a traditional method results in the ventilation space thus not being optimized. This is because the air coming out of the device settles as a lid at a level in the space above the original air that remains in the space.

The lid is formed due to the fact that the original air that remains is slightly colder than the air that flows out of the device. This results in the new air settling on top of the original air in the room.

Fig. 5 shows a space (A) which is ventilated with a device (1) according to the invention. The space (A) comprises a roof (B), a floor (C), a cooling surface (D), and at least two wall surfaces (E, F). Part of a third wall surface (G) is shown in the figure. This third wall surface (G) is illustrated to show that the space (A) includes surfaces (D - G) on all sides of the space. However, in order to be able to illustrate the inside of the space (A), the third wall surface (G) in its entirety on the space (A) is not shown.

During operation, a supply air (6) flows into the device (1). Due to the induction effect, recirculating room air (7) flows up and into the device (1) through the battery (3a, see Fig. 1). After passing through the battery (Sa), the recirculating room air (7) is directed out to the sides inside the device (1) by means of the supply air (6) which flows into and through the device (1) via the receiving means (2). Inside the device (1) there are air flow directors through which the supply air (6) flows before it is combined with the recirculating room air (7).

The air destroyer inside the device is configured to flow the supply air (6) in the direction of direction means (5). Directional means (5) are arranged on part of the device (1) adjacent to the space (A). A mixture of supply air (6) and recirculating room air (7) flows through direction means (5) in at least a first and a second outlet air direction (9a, 9b). The supply air (6) flowing to the device (1) enters the device (1) at a temperature lower than the room air in the room (A).

The battery (3a) comprises a first flow area (4a) through which a part of the recirculating room air (7) flows through. This first flow area (4a) is arranged on one side of the battery (Sa), the recirculating room air (7) flowing up through the first flow area (4a) exchanging temperature with part of the battery (5a). 3a) comprising a heating circuit (10). The recirculating room air (7) enters the device (1) in the part of the device (1) which is closest to a cooling surface (D, see Fig. 5) in the space (A). Inside the device (1), the heated recirculating room air (7) is combined and mixed with the supply air (6) by the air flow converter inside the device (1) causing the supply air (6) to flow in the direction of the recirculating room air (7) through the battery and partly towards the direction means (5) on the device (1), the recirculating room air (7) and the supply air (6) being combined in an outlet air (8) in a first outlet air direction (9a) towards the cooling surface (D). The exhaust air (8) flowing out of the device (1) in the first exhaust air direction (9a) has a temperature which is higher than the room air in the space (A).

Through a second flow area (4b), arranged next to the first flow area (4a) on the battery (3a), recirculating room air (7) flows up through said second flow area (4b), parallel to the recirculating room air (7) through the first flow area ( 4a). In part of the battery (3a) with the second flow-through area (4b) the temperature / axes the recirculating room air (7) with a cooling circuit (11). Inside the device (1), the cooled, or unaffected if the cooling circuit is not active, combines and mixes the recirculating room air (7) with the supply air (6) by the air flow rectifier inside the device (1) causing the supply air (6) to flow in the direction of the recirculating room air (7) flowing up through the second flow area (4b) of the battery (3a) and partly towards the direction means (5) on the device (1), the recirculating room air (7) and the supply air (6) being combined in an exhaust air (8) in a second outlet air direction (9b) towards at least one wall surface (E, F, G). The exhaust air (8) flowing out of the device (1) in the second exhaust air direction (9b) has a temperature which is lower than or equal to the room air in the space (A). Inside the space (A, see Fig. 5), exhaust air (8) flows in a first exhaust air direction (9a) towards the cooling surface (D), which exhaust air (8) has been heated and has a higher temperature than the room air. In an upper area of the cooling surface (D), the heated exhaust air (8) accumulates in a zone (13), a so-called temperature zone. The zone (13) adjoins partly the cooling surface (D) and partly the roof (B). The cooling surface (D) has a surface temperature that is lower than the surface temperatures of other wall surfaces (E, F, G) in the space (A). Said cooling surface (D) cools the heated exhaust air (8) in the zone (13). after which the exhaust air (8) adjacent to the cooling surface (D) cools, the cooled exhaust air (8) thus falls downwards and along the cooling surface (D) in the direction of the floor (C). Because the zone (13) only adjoins a side that cools the exhaust air (8), the cooling of the exhaust air (8) takes place rather slowly, at the same time as the zone (13) is continuously filled with new heated exhaust air (8). As a result, a controlled and continuous flow of cooled air down to the floor (C) is obtained, whereby a reduction of cold race is obtained. The room air is prevented by the exhaust air which falls as a thin film against the floor (C) from the zone (13) along and 10 532 5GB 10 over the cooling surface (D), whereby the room air is thereby prevented from being cooled by the cooling surface (D). the cold slide is minimized.

In the space (A), exhaust air (8) flows in a second outlet air direction (9b) towards at least one of the other wall surfaces (E, F, G), preferably towards the three wall surfaces (E, F, G). The exhaust air (8) in the other exhaust air direction (9b) is cooled and has a temperature that is lower than or equal to the room air in the room (A). Due to this, this cooled exhaust air (8) will flow along the respective wall surface (E, F; G) down towards the floor (C) due to the fact that it is heavier than the room air.

This results in a more efficient ventilation effect as well as a low and optimized temperature gradient due to the fact that temperature differences between floor and ceiling are minimized.

The invention is not limited to the embodiments shown but can be varied and modified within the scope of the appended claims, which have been partly described above.

Claims (1)

1. 0 15 20 25 30 35 Patent claims: 1. 532 5GB 11 Method for ventilating a space (A) with room air by means of a ventilation device (1) arranged in the ceiling (B) to the space (A), which space (A) is delimited by the ceiling (B), a floor (C) and a number of wall-like elements with surfaces (D, E; F; G) facing the space (A), which surface, called cooling surface (D), has a surface temperature which is lower than surface temperature of the other surfaces, called wall surfaces ( E; F; G), which device (1) comprises a receiving means (2) adjacent to a supply air element (H), at least a first battery (3a), which battery (3a) comprises at least a first flow area (4a) and a second flow area (4b), a direction means (5), which method comprises the steps of: 0 flowing a first air stream, called supply air (6), through the receiving means (2) into the device (1), flowing a second air stream, called recirculating room air (7), through the first flow area (4a) of the first battery (3a) into the device (1), flow a third air stream, called exhaust air (8). out of the device (1) into the space (A) in at least one first exhaust air direction (9a) and in at least one second exhaust air direction (9b), temperature change recirculating room air (7) between first battery (3a) and room air (7), combine / mix recirculating room air (7) and supply air (6) with each other in the exhaust air (8), where, supply air (6) to the device (1) with a temperature lower than the room air in the room (A), flows in the first exhaust air direction (9a ) exhaust air (8) from the device (1) with a temperature higher than the nims air in the room (A), flow in the other exhaust air direction (9b) outlet air (8) with a temperature lower than the temperature of the room air in the room (A), flow in the first exhaust air direction (9a) out the exhaust air (8) in the direction of the cooling surface (D) and collect this exhaust air (8) in a zone (13) adjacent to an upper area of the cooling surface (D), flowing in the second exhaust air direction (9b ) out the exhaust air (8) in the direction of at least one of the other wall surfaces (E; F; G), flow a first volume of room air (7 ) through the first flow area (4a) which is smaller than a second volume of room air (7) flowing through the second flow area (4b). 10 15 20 25 30 35 532 5GB 12. A method according to claim 1, wherein, the recirculation of the room air comprises flow of room air from the space into the device through the first flow area of the first battery and temperature change with a heating circuit arranged in the battery. . A method according to claim 1, wherein, the recirculation of the room air comprises flow of room air from the space into the device through the first flow area of the first battery and temperature change with a cooling circuit arranged in the battery. . A method according to claim 1, wherein, the recirculation of the room air comprises flow of room air from the space into the device through a second flow area with the first battery and temperature change with at least one heating circuit and / or cooling circuit arranged in the first battery. . A method according to any one of the preceding claims 1-4, wherein, the recirculation of the room air. comprises flow of room air from the space into the device through a second flow area in a second battery in the device and temperature change with at least one heating circuit and Jeller cooling circuit arranged in the second battery. . A method according to any one of the preceding claims 1-5, wherein, the accumulation of exhaust air in the zone comprises cooling of the exhaust air in the zone and continuous movement of the cooled exhaust air in a direction from the zone to the floor, along the cooling surface. . A method according to any one of the preceding claims 1-6, wherein, the flow of exhaust air in the other exhaust air direction comprises flow of the exhaust air in the direction from the device towards the wall surface and at the wall surface continuously continued for exiting the exhaust air along the respective wall surface towards the floor. . Ventilation device (1) for ventilating a space (A) with room air, which device (1) is configured to be arranged in the ceiling (B) to the space (A), which space (A) is delimited by the ceiling (B), a floor (C) and a number of wall-like elements with surfaces (D; E; F; G) facing the space (A), which surface, termed cooling surface (D), has a surface temperature which is lower than the surface temperature of the other surfaces, called wall surfaces (E; F; G), which device (1) comprises a receiving means (2) adjacent to a supply air element (H), at least a first battery (3a), which battery (3a) 10 15 20 25 30 35 532 508 13 comprises a first flow area (4a) and a second flow area (4b), a directional means (5), which receiving means (2) is configured to flow through a first air stream, called supply air (6), into the device (1), which first battery (3a) is configured to flow through second air stream, called recirculating room air (7), through the first flow the area (4a) into the device (1), which device (1) is configured to flow out a third air stream, called outlet air (8), from the device (1) into the space (A) via direction means (5) in at least one first exhaust air direction (9a) and in at least one second exhaust air direction (9b), which battery (3a) is configured to change temperature with the recirculating room air (7) flowing through the battery (3a), which device (1) is configured to inside the device ( 1) combining / mixing recirculated room air (7) and supply air (6) with each other to exhaust air (8) for flow out of the device (1), where, which device (1) is configured to receive supply air (6) with a temperature lower than the room air, which device (1) is configured to flow exhaust air (8) from the device (1) in the first exhaust air direction (9a) with a temperature higher than the room air in the room (A), which device (1) is configured to flow exhaust air (8) from the device (1) in the second exhaust air direction (9b) with a temperature atur lower than the temperature of the room air in the space (A), which device (1) is configured to flow out exhaust air (8) from the device (1) in the first exhaust air direction (9a) in the direction of the cooling surface (D). which device (1) is configured to flow out air (8) from the device (1) in the second outlet air direction (9b) in the direction of at least one of the other wall surfaces (E; F; G), which first flow area (4a) is configured to heat the flowing recirculating room air (7), which first flow area (4a) is smaller than the second flow area (4b), the volume of recirculating space lock 7 (7) flowing through the first flow area (4a) being less than the volume of recirculating room air (4a). 7) flowing through the second flow-through area (4b), 10 15 20 25 30 35 9. 10. 11. 12. 13. 14. 15. 16. 532 505 14 Ventilation device according to claim 8, wherein, part of the first battery with the first flow area comprises a heating circuit configured to alternate temperature with the recirculating room air. Ventilation device according to any one of claims 8 - 9, wherein, part of the first battery with the second flow area comprises a cooling circuit configured to change temperature with the recirculating room air. Ventilation device according to one of claims 8 to 10, wherein the first flow area is smaller than the second flow area. Ventilation device according to any one of claims 8 - 9, wherein, a second flow area is arranged in a second battery arranged in the device, which second battery comprises a heating circuit or cooling circuit configured to change temperature with the recirculating room air through the battery. Ventilation device according to any one of claims 8 - 12, wherein, the battery comprises at least a first pipe part and at least a second pipe part, which advantages extend through the battery in at least two different levels relative to the ceiling or floor, which pipe parts through the battery are parallel relative to each other, which pipe sections are configured to pass at least a first medium through the battery with at least a first temperature for temperature change with a room air flowing through the battery. Ventilation device according to claim 13, wherein, the fate of the respective pipe part can be regulated to either close a flow through a pipe part or open up for a flow through a pipe part. Ventilation device according to any one of claims 8 - 14, wherein the heating circuit is arranged in the battery in a first plane, which first plane extends between two second planes, in which two second planes the cooling circuit is arranged. Ventilation device according to any one of claims 8 - 15, wherein, the device is configured to be arranged in the ceiling in such a way that the heating circuit has a distance to the cooling surface which is shorter than the distance from the cooling circuit of the device to said cooling surface.