FI92527C - Air distributor and method of adjusting the air distributor - Google Patents

Description

92527

Air distribution device and air distribution device adjustment method Air handling unit and control unit for air handling unit 5

The invention relates to an air distribution device and a method for controlling the air flow.

It is advantageous for the use of an air distribution device that the device can be adapted to the needs of the space and that the flow field caused by the device can be modified. The choice of air divider-10 tea is often limited by the unsuitability of the throw pattern for the space. The throw pattern can be either too long or too short. If several devices have to be placed side by side or devices have to be placed close to flow barriers, it would be advantageous for part of the air distribution area of the device to be closed.

The invention makes it possible to find a solution to the above-mentioned problem. In the invention, a plate comprising fractions which can be bent to the desired position implementing the flow is used as the air flow supply pattern control device of the air distributor. There are several fractions and they are arranged in a circular plate by sector, whereby if it is desired to adjust the flow from the air distributor in a certain direction, the fractions of said direction of the 20 baffles are turned to the position implementing the desired flow.

According to the invention, the air flow leaving the air distributor can be changed by means of the plate. By bending the fractions obliquely to the inlet flow, the flow can additionally be deflected so that the outlet flow from the air distributor is oblique to the edge of the device 25. In this way, the device can provide a rotating flow field around the air distributor.

By varying the number of bent fractions on the control plate, the accuracy of the flow variation can also be adjusted. The material used is a rigid metal plate which retains its shape after bending. Bending is done manually at the installation site or already at the factory during the manufacturing process of the air distributor. The control plate is preferably made of one plate by stamping or assembled from several parts.

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The air distribution device according to the invention is mainly characterized in that both edges of each fraction have a gap running from the edges of a uniform plate towards the center of the plate, the fractions of the inlet plate being each bendable at independently bendable relative to the plate plane of a uniform plate.

The air distribution device according to the invention according to the invention is mainly characterized in that the method adjusts the desired air flow in each sector 10 by bending the sector fraction so that towards the tops of the supply air chamber by bending to increase the airflow restriction in the sector at the fraction.

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The invention will now be described with reference to some preferred embodiments of the invention shown in the figures of the accompanying drawings, to which, however, the invention is not intended to be exclusively limited.

Figure 1A shows the supply air device in an axonometric view.

Fig. 1B is a section I-I of Fig. 1A.

Figure 2 shows the control plate of the supply air device from above.

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3 shows a sååtolevy the direction of arrow D in Figure 2 the direction of the plate bent up two fractions.

Figure 4 shows another preferred embodiment of the baffle plate, in which the gaps between the fractions 30 run obliquely with respect to the radial directions of the baffle.

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Fig. 5 shows the bending of the fractions of the plate of Fig. 4, whereby a rotating flow field is obtained around the air distributor.

Figure 1A shows an axonometric view of an air distribution device 10 according to the invention.

The air distribution device 10 comprises, as shown in the figure, a supply air connection 12, which leads to the internal supply air chamber E of the device, from which air flows to the room through the flow gap D to the side of the device. The device shown in Fig. 1A comprises an upper body portion 11a and an associated lower body portion lib.

Fig. 1B is a section I-I of Fig. 1A. As shown in the figure, the air flow through the connection 12 enters the supply air chamber E as indicated by the arrow Lj and deviates by means of the supply plate 13 of the supply pattern to the side from which the air flows further through the slot D. The air flow is regulated by a control plate 13 suspended from a transverse rod 14 passing through the rod 15 through the rod 15. As shown in Fig. 15BB, fractions 13a] and 13a6 of the access plate 13 are bent upwards, whereby at said fractions the air coming out of the device is throttled.

Figure 2 shows the top of the air plate of the air flow harvester of the air distributor 10 according to the invention. The plate shown in the figure is preferably a circular plate 20 divided into bendable fractions 13aj, 13a2, 13a3 ... Each fraction is bendable upwards towards the air distributor structures adjoining the upper part of the inlet chamber of the air distributor. In this way, the air flow can be adjusted horizontally and / or vertically as desired. The fractions can be used to control the throw length of the outgoing airflow and / or the induction of the outgoing airflow. The number of fractions can be selected as desired, 25 in which case the number of fractions determines the output accuracy of the control plate 13. 13a1, 13a2 of each verse; 13a2, 133; 13a3 ... there is a gap 13bj; 13b2; 13b3 ... slots 13bj located in the embodiment of Figure 2; 13b? ... with longitudinal axes X1, X2 ... in the direction of the radius R drawn at the slot 13aj, 13a2 ... of the plate 13. The gaps 13a1,13a2 ... are thus located in the rain. The plate 13 is preferably a circular plate. The control plate 13 can be made from one of the 30 plates by stamping or assembled from separate fractions. The distance of the bending point from the edge of the fraction is at least 1/10 of the edge width of the fraction and preferably 1/3 to 3 times the edge width of the fraction 4,92527. There are at least three and preferably more fractions of Da ^ Da ^ .- Dag and they are evenly distributed over the entire area of the plate.

3 shows a saatolevy the direction of arrow 13 of Figure 2 from the direction K fractions 13a4 and 13a5 5 Up bent. The bent fractions 13a4 and 13a5 are thus located obliquely to the plane T of the drive plate 13.

Fig. 4 shows an embodiment of the invention in which the gap 13bl5 13b2 ... between the fractions 13alt 13a2 ... 13a of the weather plate 13 is located diagonally along its longitudinal axis Xj, X2 ... 10 in the direction of the rain R drawn at the slot 13a !, 13a2 ... of the plate 13 and wherein the gap 13bl5 13b2 ... between the fractions further comprises at the end of the gap a separate longitudinal axes .Xj, X2 with an end gap 13cl5 13¾ at an angle of about 90 ° .... The slots 12ai, 13a2 ... are thus located obliquely to the edge of the plate 13 compared to the drawn normals. Then each fraction 13alf 13a2 ... in the gap 13b1; The edge bordering 13b2 ... 15 is pivotable upwardly from its edge bordering the slot 13b1,13b2. For the flow L3 leaving the device, the so-called tangential orientation and around the air distributor the so-called in a rotating flow field.

Fig. 5 shows the adjusting plate of Fig. 4 in an operating position in which some of the fractions are bent and some of the fractions are not bent at their edges.

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Claims (8)

92527 An air distribution device (10) comprising a supply air connection (12) from which air flows into the internal inlet chamber (E) of the air distribution device (10) in connection with the supply portion (13) of the supply pattern and further through the flow gap (D) or the like into the room space. ) consists of a unitary control plate (13) with several fractions (13aj, 13a2 ... 13an), characterized in that there is a gap (13bj, 13b2 ---) at each edge of each fraction (13a1? 13a2 ... 13a „). »Running from the edges of the solid plate towards the center of the plate, the fractions (13aj, 13a2 .... 13a„) of the baffle plate (13) being each 10 bendable upwards from the outer edge of the fraction towards the upper part of the supply air chamber (E) each fraction being independently bendable relative to the plate plane (T) of a uniform plate. Device according to the preceding claim, characterized in that the adjusting plate 15 (13) is suspended by rods (15, 14) on the body part (11a) of the air distribution device (10). Device according to one of the preceding claims, characterized in that the control plate (13) comprises a plurality of fractions (13aj, 13a2 ... 13an) and gaps (13b !, 13b2 .. ·) between the fractions, the longitudinal axis (Xlt X2) of is parallel to the radius (R) of the plate (13). 20 Device according to one of the preceding claims, characterized in that there are at least three, preferably several, fractions (13a1, 13a2 ... 13an) and in that the fractions are evenly distributed over the entire area of the plate. Device according to one of the preceding claims, characterized in that the distance of the bending point of the fraction (Haj and / or 13a2 and / or 13a3 ... and / or 13a „) from the edge of the fraction is at least 1/10 of the edge width of the fraction and preferably 1/3 to 3 times the edge width of the fraction. Device according to one of the preceding claims, characterized in that the control plate (13) comprises fractions (13al5 13a2 ... 13an) such that the gap 92527 (13bt, 13b2 .. ·) between them is located on its central axes (Xj, X2 ·). ·) Obliquely to the radius (R) of the plate (13). Device according to the preceding claim, characterized in that the gap (13bj, 13b2 ...) between the fractions 5 (13a !, 13a2 ...) comprises at its end at an angle of approximately 90 ° to the shafts (Xl5 X2 ...). the end gap (13cj, 13c2 ...), whereby each fraction (13alt 132 ...) is pivotable upwards from its edge bordering the gap (13b !, 13b2 ...). A method of supplying an air distributor (10), using an air distributor (10) which supplies a supply air connection (12) through which air is flowed into the internal supply air chamber (E) of the air distributor (10). , in which the method for controlling the airflow in the horizontal and / or vertical plane uses a control plate (13), the fractions (13ai, 13a2 ...) of which are adjustable to perform the airflow flow, and that a control plate (13) divided into sect is used. , 13a2 ... 13an), and in which the method uses a control plate (13) having a gap (13bj, 13b2 ...) running at both edges of each fraction (13a1,13a2 ... 13an) running from the outer edge of the plate towards the center of the plate, characterized in that in the method jet-20 this air flow is desired in each sector by bending the sector fraction (13a !, 13a2 ... 13a „) such that the outer edge of the fraction (13aj, 13a2 ...) is raised towards the top of the supply air chamber (E) when the fraction bends with respect to the other end of the fraction, whereby bending each fraction has an adjustable airflow in each sector, and ) towards the tops by bending an additional 25 airflow chokes in the sector at the fraction. I! »92527