JPS5844269Y2 - air blowing device - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improvement of an air blowing device for air conditioning equipment, etc., and is capable of blowing air from a relatively wide air outlet with uniform wind speed and low pressure loss. Moreover, it is an object of the present invention to provide a device that can significantly shorten the length of an air conveying duct for rectifying the air supplied to the air blowing box.

In conventional air conditioning equipment, in order to blow out air at a uniform speed over the entire area from the air outlet over a relatively wide area, there is a space behind the outlet that is at least five times the diagonal length of the outlet. It is necessary to install a two-length air conveying duct for rectification, or to install a fine mesh or perforated plate over the entire surface of the outlet; the former method requires a very long installation. The latter method has the drawback of requiring space, and the latter method not only has a large pressure loss and high operating power costs, but also has the drawback of being easily clogged.

The present invention has the configuration described in the claims for utility model registration, so that air can be blown out at a uniform speed from an air outlet over a relatively wide area without the above-mentioned drawbacks. This is what I did.

The configuration of the illustrated example will be explained below.

In FIG. 1, an air blowing box 1 in the form of an elongated box is
Air outlet 2 is opened on the horizontally long front part,
This air outlet 2 has a plurality of holes with axes arranged in the vertical direction,
In the illustrated example, three cylindrical bodies 3°4.5 are arranged and fixed.

In the air blowing box 1, an air passage 7 is formed on the back surface of the cylindrical bodies 3, 4.5 so as to direct a streamline 6 of the supplied air in a direction perpendicular to the axis of the cylindrical bodies 3, 4.5. An air conveying duct 8 communicating with the air passage 7 is connected to the side portion.

In this embodiment, when the air supplied from the direction shown by arrow A to the air passage 7 via the air conveying duct 8 passes through the back surface of the cylindrical body 3, a part of the air goes back along the cylindrical surface to the front side. The air becomes blown air 9 and is blown out from the air outlet 2.

The remaining air further advances through the air passage 7, goes back along the circumferential surface of the cylindrical body 4.5, and is blown out as blown air 10.11.

As a result, the air conveying duct 8. The air path 7 can be shortened, and the blown air 9, 10, 11 can be blown out at a generally uniform wind speed.

FIG. 2 shows an embodiment in which the air outlet has a wider area, and the air outlet box 12 is divided into upper and lower three stages with partition plates so as to form supply air streamlines 13, 14, and 15. 16.17, and each air outlet 18, 19.20 divided by a partition plate 16.17 has a plurality of cylindrical bodies 21, 22, 23, in the illustrated example, three each, respectively.
24, 25, 26, 27, and 28.29 are arranged and fixed.

Of course, these cylindrical bodies may be arranged in series in each stage.

In this air blowing box 12 as well, air passages 33, 34 are arranged on the back surface of each cylindrical body so that the streamlines 30, 31, 32 of the supplied air are directed in a direction perpendicular to the axis of the cylindrical body, as in the case shown in FIG. , 35 are formed, and each of the air passages 33, 34, 35 is communicated with a communication passage 36 on one side of the air blowing box 12, and an air conveying duct 37 is connected to the communication passage 36.

In this embodiment, a part of the air supplied from the direction indicated by the arrow to the communication passage 36 via the air conveying duct 37 flows in the direction of the streamline 13 at the end 38 of the partition plate 16.
The remaining part of the air flows in the direction of the streamline 14 at the end 39 of the partition plate 17, and the remaining air hits the bottom plate 40 and flows in the direction of the streamline 15.

The supply air divided as described above is blown out from each air outlet 18, 19, 20 at a generally uniform wind speed by the action of the base cylindrical bodies 21 to 29 that are exactly the same as those shown in FIG. That will happen.

In this invention, by selecting the wind speed and air volume9, the diameter and length interval of the cylindrical body, air can be blown out at a generally uniform wind speed from a fairly wide air outlet, and the rectification at that time can be controlled. The length of the air conveying duct or air path for this purpose can be made shorter than in the conventional case, and the pressure loss due to the provision of the cylindrical body can also be made smaller than when a net or perforated plate is provided.

As explained above, according to the present invention, there is no need for long air conveying ducts or air paths for rectification, so the installation space can be reduced, pressure loss is low, and operating power costs can be reduced. Moreover, it has the effect of blowing out air at a generally uniform wind speed from the air outlet surface.
Since no clogging occurs, maintenance and management can be facilitated.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view of one embodiment, and FIG. 2 is a schematic perspective view of another embodiment. 1... Air outlet box, 2... Outlet, 3,4°5... Cylindrical body, 6...
Air streamlines, 8...Air conveyance duct.

Claims (1)

[Scope of utility model registration request] A plurality of cylindrical bodies are disposed at the outlet of the air blowing box, and the air blowing box has an air conveying duct that directs streamlines of supplied air in a direction perpendicular to the axis of the cylindrical bodies. An air blowing device characterized by being installed in series.