JP2647478B2 - Air distribution device - Google Patents

Abstract

An air distribution device (10) comprises an air inlet (12) which conducts incoming ventilation air (56), through a perforated distributing and throttling plate (32), to a distribution chamber (14) which is bounded on one side by a perforated front cover plate (24) of the device. Located inwardly of the front cover plate are guide rails (26) which are perpendicular to the incoming air flow and steer the exiting air in a first main direction. The device further comprises plates (30) which extend at right angles to the rails (26) and which function to support the guide rails and to guide the air exiting from the device in another main direction. The distributing end throttling plate (32) exhibits through-flow zones (34, 35, 36) with intermediate imperforate or constricted induction zones (38) on the downstream side of the plate, these zones being open towards a secondary air port (42) provided on the device.

Description

The invention relates to an air distribution device of the kind set forth in the preamble of claim 1.

The air distribution device of the present invention is a low impulse device and can be mounted or mounted on a wall or similar structure, or can be placed freely on a floor or similar support surface. The device must be located near the floor, so that the speed of the incoming air must be reduced so that there is no ventilation or other obstruction.

Conventionally known air distribution devices of this kind have a number of disadvantages. The configuration of conventional devices is often unnecessarily complicated, resulting in increased manufacturing costs and consumption time, and higher maintenance and repair costs. In addition, the outflow air flow may not be well controlled, especially in horizontal planes, thus resulting in non-uniform ventilation in the room where the device is located. In the known air distribution devices, the incoming air is very often at high pressure in relation to the perforations in the distribution and / or partition surfaces of the device. Such eyelets can quickly close due to dirt, reducing air flow and causing the device to exhibit undesirable operating modes.

FR A 2 169 131 discloses a device which does not introduce secondary air or room air and which has not more than three different perforated walls, wherein air is passed through small holes in such walls. It must be discharged under high pressure, which has the disadvantages described above.

US A 1 523 268 describes an air distribution device for ceilings. This device also does not introduce secondary or room air and does not have various outlet restrictions for a single coherent device. Furthermore, this device is not designed for use in the lower part of a room as in the present invention.

Accordingly, it is an object of the present invention to substantially solve the above-mentioned drawbacks, to control the inflow air in both the vertical and horizontal directions with a simple configuration, and to reduce the manufacturing cost and the maintenance and repair cost. It is an object of the present invention to provide an improved air distribution device which is kept low and which is inventive in this field. The present invention also allows for the use of less primary air or ventilated air than conventional devices, as well as the use of lower temperature primary air, thereby saving energy and cost. It is aimed at saving. It is also an object of the present invention to provide good diffusion of ventilation air and to eliminate the need for periodic inspection, cleaning and / or replacement of equipment components.

These objects are achieved by an air distribution device of this type with the features stated in the following claims, in particular the characterizing features of claim 1. The device according to the invention comprises:
It requires a relatively low flow rate of air and can ensure uniform ventilation over most of the equipment. The secondary air is continuously sucked into the device continuously, mixed with the primary air therein and discharged in a mixing-adjusted state. In a practical example, the secondary air is at a higher temperature than the primary air, so the temperature is mixed and the distributive mixing occurs when compared to a device without secondary air introduction requirements and other essential requirements according to the invention. Colder primary air can be used without lowering the temperature of the air. In this way, smaller dimensions and lower temperatures can be used, so that air distribution costs and equipment costs can be kept low. Since the required fan may be small, i.e. the capacity of the fan may be small, the operating costs may also be reduced. The system often stops sensitively and operates without any hydraulic, pneumatic or electrical means of limited life. Providing the device with a distributor / throttle plate forming a penetration area and an air introduction area provided between the penetration areas on the downstream side and capable of introducing secondary air or room air can achieve an advantageous introduction and achieve the present invention. It is a very simple and effective means that can contribute to a new and effective combined working mode of the device according to the invention.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the accompanying drawings.

FIG. 1 is a partially cutaway perspective view of the first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line B in FIG. 1 and shows a state where the device is attached to a wall structure.

FIG. 3 shows the air distribution / throttle plate arranged at A in FIG.

FIG. 4 is a horizontal sectional view of the air distribution device taken along line C of FIG.

FIG. 5 is a partially cutaway perspective view of a second embodiment of the present invention.

FIG. 6 is an axial cross-sectional view of the air distribution device of FIG. 5, showing the flow of air through the device.

FIG. 7 is a horizontal sectional view taken along line E in FIG. 6,
2 shows a guide rail and a baffle plate provided in the apparatus of the present invention.

FIG. 8 shows a second embodiment of the air distribution / throttle plate arranged at D in FIG.

FIG. 9 is a partially cutaway perspective view of a third embodiment of the present invention.

FIG. 10 is a partially cutaway side view based on the line FF of FIG.

FIG. 11 is a partially cutaway plan view of the apparatus of FIGS. 9 and 10.

FIG. 12 is a partially cutaway perspective view of a fourth embodiment of the present invention.

FIG. 13 is a plan view showing the apparatus of FIG. 12 with the upper plate omitted.

FIG. 14 is an exploded view showing an embodiment of a combination of the guide rail and the baffle plate in FIGS. 12 and 13.

FIG. 15 is a partially cutaway perspective view of a fifth embodiment of the present invention.

FIG. 16 is a partially cutaway front view showing the apparatus of FIG.

 FIG. 17 is a view taken along the line KK of FIG.

1 to 4 show a first embodiment of an air distribution device 10 according to the invention, which comprises a wall or a similar structure, for example a stud wall or stud wall 1 shown in phantom in FIG. In addition, it can be attached at a short interval upward from the floor surface 2. The device 10 is flat and has an inlet sleeve 12 extending into a distribution chamber 14. Distribution room 14
Is surrounded by a rear plate 16, a side plate 18, a bottom plate 20, and a top plate 22 adjacent to the inlet sleeve. The distribution room 14 has a perforated front cover plate facing the room to be ventilated.
A distribution plate or a sieving plate 25 is arranged inside the central portion of the cover plate 24, and can appropriately deflect a part of the flow of the outflow air in the lateral direction. Horizontal guide rails 26 are arranged inside the plates 24 and 25, and the rear edge thereof is curved upward as indicated by reference numeral 28. The guide rail 26 is supported by a side plate 18, preferably a vertical baffle plate 30 as shown. The baffle plates 30 are preferably inclined with respect to a vertical plane to deflect the direction of the flow of the outflow air, are arranged on each side of the distribution plate 25 and are located at the nearest position of the front plate 24. Orientation part 31
have. Further, the baffle plate 30 is provided with a groove (preferably also on the guide rail 26), and the rail 26 is inserted into this groove, so that the plate 30 and the rail 26 can be fixed to each other. it can. One or both of the plate 30 and the rail 26 may be arranged to be tiltable so that the setting can be changed.

An air distribution / throttle plate 32 is disposed between the sleeve 12 and the distribution chamber (distribution box) 14, and this plate 32 has a hole 34 formed therein. The holes 34 are arranged in a rear row 35 and in a mutually parallel row 36, the row 36 surrounding an introduction area 38 between which the area 38 is open in the front direction of the device. As shown by arrows 40 in FIGS. 2 and 3, the inlet air is guided into the inlet area downstream of the distribution plate 32 by suction from a secondary air port 42 arranged on the front side of the device. The secondary air ports are laterally partitioned by the side plates 18, upwardly by the upper plate 22 and / or the upper boundary plate 44, and below by the lower boundary plate 46. However, if the amount of secondary or return air removed from the room to be ventilated is small, this secondary air port may be, for example, a flush or perforated perforated plate, mesh, etc. (not shown) that can be interchanged. May be partitioned by Also, the perforated plate and plate 25 may be combined to allow simultaneous setting of both parts in a desired manner.

The front plate 24 is arranged at a certain distance from the wall 1 so as to leave a gap or gap 48 therebetween. plate
24 has a rearwardly bent side edge portion 50 at each end thereof, the side edge portion 50 having an inwardly facing flange or lip 52.
I support. Both side edge portions 50, the corners where each is joined to the front plate, and the lip 52 have holes 54 similar to the front plate. As a result, an air outlet region in which the direction of air flow is stable is defined on the front side of the apparatus and outside the gap 48. The side edge portions 50 and corresponding corner holes 54 help to equalize the flow of gas or air in this area and prevent stagnation areas from occurring. Centrally located air distribution plate 25
Is effective in restricting the air flow in the central part of the front plate. This air throttle effect, together with the guiding effect provided by the baffle plate 30 and the outwardly facing portion 31, serves to direct air to the area located just forward and to the side of the air distribution device of the present invention.

How to use the air distribution device 10 will be briefly described as follows. Air (arrow 56) entering the device from a conduit (not shown) is decelerated at the inlet sleeve 12 by the air distribution and throttle plate 32 and passes down the rear row of holes 35 evenly down the rear plate 16 of the distribution chamber. And descends evenly through the mutually parallel row of holes 36. As a result, the plate
Negative pressure is generated in the introduction region 38 below the 32, and the introduction air is guided to the introduction region 38 as described above. While air is flowing downward through the distribution chamber 14, the partial airflow is continuously directed forward by the rails 26. The part 28 bent above the rail 26 functions as a splitter,
Separate the portion of the incoming air flow closest to the front of the device. Since the rear plate 16 is inclined, the distribution chamber 14 becomes narrower downward, and air flows at substantially the same speed over the entire length of the distribution chamber 14, and the same air flow flows through the front cover plate by the guide rail. You will be guided outside.

Wall-mounted air distribution devices assembled in accordance with the present invention are generally adapted to be mounted on a stud structure in which vertical studs are arranged at 70 mm depths. For this, the inlet sleeve is 60x so that all available space between the studs is available.
Preferably, it has a dimension of about 500. The device itself has a width of 600
mm and a height of 300-900 mm (depending on the relevant air conditions). The diameter of the holes in distribution plate 32 is in the range of 8-16 mm, which also depends on the relevant air conditions. The front cover plate suitably has a hole with a diameter of 5 mm and a center distance of 7.5 mm. The device 10 is preferably arranged at a distance of 10 cm from the floor.

5 to 8 show another embodiment of the apparatus of the present invention.
The device is labeled 110 and is free to rest on a floor or similar support surface. The same or equivalent components as those of the embodiment of FIGS.
The same reference numerals are used except that 0 is added.

The device 110 shown in FIGS. 5 to 8 has an inlet sleeve 112 extending into the distribution chamber 114, the distribution chamber 114 being partitioned at the bottom by a bottom plate 120 and at the top by a top plate 122.

The device is supported on a floor base 123 and has a cylindrical vertical front cover, which is provided with holes 154 for ventilation air flow. A plurality of horizontal annular guide rails 126 are arranged in the front cover, and the radially inner edge of each rail is bent upward around a central hole 129 of the annular body (rail) to form a rising collar 128. doing. The annular rail 126 is supported by a plurality of vertical baffle plates 130. Baffle plate 130
Is at least three, preferably four or more. The central hole 129 of the annular guide rail 126 has a depth, i.e.
As the distance from 112 increases, its size decreases, and thus the distribution chamber becomes narrower downward. Again, the guide rails 126 and / or the vertical support plate 130 are provided with slots which allow the rails to be securely mounted and securely held in place. The plate 130 serves to support the annular guide rail 126 and also serves to guide outflow ventilation air in a horizontal plane. Therefore, when the need for such guidance is great, a large number of baffle plates 130 are provided. This is the case, for example, when the air distribution device 110 ventilates only a part of its surroundings, and the other parts are blocked by a shielding plate (not shown) arranged near the perforated front cover plate 124. You. In this case, the plate 130 is preferably arranged along the edge of such a blocking plate.

As shown in FIG. 5, a hole having a diameter of, for example, 2 mm may be formed in a horizontal portion of each rail 126 (preferably also in the collar 128). These holes allow a certain amount of air to pass through the guide rail surface and the collar of the guide rail. This prevents the creation of a negative pressure zone below the guide rail and / or outside the collar. In such negative pressure regions, return flow and turbulence can occur, which can cause acoustic and fluid disturbances in the flow exiting the air distribution device.

The inlet sleeve 112 connects to the inlet box or chamber 131,
The bottom of the inlet chamber 131 is bounded by a distribution / throttle plate 132. The plate 132 has a plurality of through holes 134. The holes 134 are arranged along a radially extending row, and the introduction areas 138 between the rows open outwardly to the periphery of the device. Below the plate 132, a secondary air port 142 extends along the circumference of the device 110, which port 142 is bounded at the top by an upper plate 144, which also functions as the outer wall of the entrance box 131. , Bottom plate 146
The bottom is partitioned by. As in the first embodiment described above, a flow is introduced through the secondary air port 142.
This suction of secondary air into the air distribution device is also obtained by the ejector effect resulting from the speed at which the primary air flows into the device.

By introducing secondary air into the device as described above, the amount of air released from the device can be increased and the area or area that can be effectively ventilated can be increased, while an external fresh air source is provided. The total amount of desired fresh air can be kept to a minimum. This reduces the energy cost of transporting and heating the fresh air sent to the device and minimizes overall ventilation costs.

A free-standing air distribution device constructed in accordance with the present invention need not necessarily be cylindrical, but can be any desired shape. For example, the device may be triangular, square, rectangular or other polygonal, and irregularly shaped.

In the corner type embodiment according to FIGS. 9 to 11, the same or equivalent components as those in the embodiment of FIGS. 1 to 4 are denoted by the same reference numerals except for the addition of 200. Similarly, the fourth and fifth embodiments also have corresponding reference numerals, respectively.
300 and 400 are added.

9 to 11, between the side plates, which preferably extend at right angles to each other, there is an inclined rear plate 216, which is preferably at approximately the same height as the lower boundary plate 246. It is terminated by an upper inclined surface. In this case, the guide rail 226 preferably has a straight front edge, but the front cover plate 224 preferably has an arc shape. The central portion of the guide rail forms another straight edge that contacts and supports (or reverses) distribution plate 225. Instead of a baffle plate,
Only the lateral restrictions consisting of the side plates of this device are preferred.
In this case, it will be clear that a substantially lateral deflection of the outgoing mixed air flow is usually not necessary, since the side plates of the device are flush with the adjacent walls of the room.

The embodiment shown in FIGS. 12 to 14 basically corresponds to the embodiment according to FIGS. 5 to 8. However, in this embodiment, the vertical baffle plate 330 is preferably arranged to support the entire central structure. Preferably, the two baffle plates 330 are coupled to the guide rails 326 at each height as shown in FIG.
Also, a slot is formed in the center of the plate 330, and each guide rail forms an edge 328 that is bent upwards around the central rectangular opening, and between these edges to hold the baffle plate. There is a groove part. As shown in FIG. 13, the size of the central opening of the support rail 326 decreases from the top to the bottom.

Finally, a fifth embodiment, shown in FIGS. 15-17, discloses a device having an elongated cross-section and a semicircular shape. The inside of this device
Briefly, it consists of a combination of the two devices shown in FIGS. 9 to 11 for a mirror image object.

In the embodiment of FIGS. 9 to 11 and FIGS. 15 to 17, the central part and the side edges of the front edge of the guide rail form a flange for attachment to the distribution plate and the adjacent wall of the device. Preferably, it is folded downward or upward in order to achieve this. Furthermore, in all embodiments having distribution plates, these distribution plates are preferably combined with guide rails (possibly also with baffles), and these components constitute a unit, such a unit being fast. It can be easily and easily removed and attached. Also, as shown particularly in FIGS. 11 and 17, the straight front edge of the guide rail cooperates with the curved front plate to equalize the pressure of the outflow mixed air and to reduce this air as much as possible. Distribute evenly in the room. Also, in the embodiment which describes the inclined rear plate, this may of course be replaced by a guide plate whose dimensions become larger downward, as in the completely circular embodiment.

The invention is not limited to the embodiments schematically illustrated, but various features and combinations of the invention disclosed herein may be made in any desired manner within the scope of the invention as defined by the following claims. Can be combined. For example, the introduction between holes 36, 136 can be of any desired shape or shape. Furthermore,
Plates 32, 132 may be replaced with other elements of the desired type.

It should also be understood that the guide rail may be designed in one piece with a support structure, i.e., a lateral restriction such as a baffle plate, by stamping the guide rail from a sheet metal, for example. is there. The support structure may be left extending coplanar or coplanar with the front cover, or may be folded to extend at a desired angle relative to the front cover. Of course,
Such a unit may be made from a plastic material, preferably by injection molding means.

Although the guide rails shown in FIGS. 5 and 12 may be difficult to see, the outer diameter is constant, and the diameter or the size of the central opening decreases from the upper part to the lower part. Sixth
FIG. 13 and FIG. 13 clearly show the meaning of each. By simply providing some central structure that functions similarly to the rear plate 16 etc., the central opening can be of equal size throughout the device.

Claims (10)

(57) [Claims] Claims: 1. The incoming ventilation air (56; 156; 256; 356; 456)
Through a perforated distribution / throttle plate (32; 132; 232; 332; 432) adjacent to the peripherally facing perforated front cover plate (24; 124; 224; 324; 424) and Guide rails that extend substantially perpendicular to the direction of flow (2
6; 126; 226; 326; 426) (14; 114; 214; 31).
4; 414), the air distribution device (10; 110; 210; 310; 410) having an air inlet (12; 112; 212; 312; 412);
The air distribution device, wherein the guide rails are effective to guide air exiting the air distribution device in a direction substantially perpendicular to the direction of flow of the incoming air; One or more lateral baffle plates (30; 130; 230; 330; 430) extending substantially at right angles and supporting said guide rails and guiding and / or restricting a lateral portion of the outflow air flow. The distribution / throttle plate further includes a through region corresponding to a hole formed in the plate and an air introduction region corresponding to a portion of the plate having no hole on the downstream side of the plate. The air distribution device, wherein the region communicates with a secondary air port (42; 142; 242; 342; 442) provided in the air distribution device. 2. The distribution chamber (14; 114; 214; 314; 414) as the distance from the air inlet (12; 112; 212; 312; 412) increases.
2. The device according to claim 1, wherein the cross-sectional area of the device is reduced. 3. The edge of each guide rail (26; 126; 226; 326; 426) facing the distribution chamber (14; 114; 214; 314; 414) has an incoming air flow (56; 156). The device according to claim 1, characterized in that a portion (28; 128; 228; 328; 428) is formed which is angled in the direction of (256; 356; 456). 4. Guide rails (26; 126; 226; 326; 426) and / or angled rail sections are provided with a predetermined limited amount of air on each rail and each angled rail. The device of claim 1, wherein the hole is formed to flow through downstream of the portion. 5. The fluid passage area may be in the form of a row of holes parallel to one another or a row of holes extending radially outward (136; 236; 336; 43).
6. Device according to claim 1, in the form of 6), wherein the rows of holes extend from a rear or central substantially continuous row of holes (35). 6. A distribution plate or sieving plate (2) facing the guide rail and / or the secondary air port (42; 242; 442) inside the cover plate (24).
5; 225; 425) are arranged. 7. The baffle plate (30) is adjustably tilted with respect to a vertical plane so as to expand outwardly to guide air flowing out of the apparatus in a lateral direction, and an outer edge (31) of the baffle plate (31). ) Are angled in opposite directions,
The plate (30) is formed integrally with the guide rail by stamping a guide rail from a thin metal plate, and is the plate (30) left on the same surface as the front cover plate (24)? The apparatus according to claim 1, wherein the apparatus is bent so as to have a desired angle with respect to the front cover plate. 8. The device is substantially rectangular in cross section and its front plate (24) is positioned at a distance from the rear mounting surface, i.e., the wall (1), to form a gap (48).
2. The device according to claim 1, wherein the gap cooperates with a lateral opening in a side edge portion of the cover plate to add a lateral flow of the outflow mixed air. 9. The device (110; 310) is substantially circular in cross section and is free to rest on a floor or similar support surface, and the support rail (126; 326) has an outer edge. And a central structure (16) which is circular or polygonal at the inner edge and which is reduced in size from the top to the bottom of the device, or which is inclined downwards over the entire central opening of the device. A baffle plate (330), wherein the central edges are formed by the equally sized inner edges and the guide rails are respectively connected to each other by a central slot to form a cruciform support at each height. Device according to claim 1, characterized in that a groove is formed between adjacent folded inner edges (328) for receiving the same. 10. The device (210; 410) has a substantially quadrant or semi-circular cross section and a guide rail (226; 426).
Is trapezoidal and its central front edge is the distribution plate (225; 42
5), the side edge portion and / or the edge adjacent to said distribution plate are bent upward or downward to form a mounting flange, and the rear plate structure (216; 416) sloping downward. The device according to claim 1, characterized in that the device is inserted between the side plates of the device or between the side plate and the baffle plate (430).