JPS585885Y2 - Clean room air balloon - Google Patents

Description

[Detailed description of the invention] The air outlet in a clean room is required to create a vortex in the room to attract dust generated in the room, and to prevent it from being drawn in. Conventionally, a filter was not used. Generally, the air that has passed through the air is discharged directly into the room, and therefore the blowout airflow is concentrated in front of the blowout hole, the diffusion range is narrow, and the negative effects of attracting indoor air and fine dust etc. due to concentrated discharge are avoided. I couldn't.

In order to eliminate the above-mentioned drawbacks of the prior art, the present invention is characterized in that a specially constructed airflow plate is provided at the outlet of the air that has passed through the filter, and this will be described with reference to the illustrated embodiment.

A cylindrical housing 1 for an air outlet installed on the ceiling a is connected to an air supply source through a flexible duct (b) in the ceiling, and air is passed through the filter layer 2 provided on the cylindrical housing 1 into the clean room from an air outlet 3.・In the case where air is blown out, the air outlet 3 is equipped with a slanted blade 5 having a step in its inclination angle and protrusion degree.
An airflow plate 4 equipped with
This allows the air to be diffused widely and softly blown out throughout the clean room.

The air flow plate 4 is made by stacking and bonding several metal fan-shaped plates 4a at the center to form a circle, as shown in FIG. 3, and bending one side edge of each fan-shaped plate 4a in the same direction at an appropriate angle. , and the respective bending angles are configured to be different from each other, and these are mounted so as to be freely rotated by the air flow of the blown air.

In this device, the air blown into the clean room from the air outlet 3 after passing through the filter layer 2 is diffused and released according to the inclined blades 5 of the airflow plate 4, and the direction of the air is greatly disturbed due to the difference in the angle of inclination of each blade. several fan-shaped plates 4
Due to the structure of the superposition of a, there are steps in the degree of protrusion of each blade 5. Also, since the airflow plate 4 rotates freely by the airflow of the blown air, the rectification tendency of the blown airflow is disturbed and it spreads in a spiral shape. Therefore, it releases air softly throughout the clean room, and has the effect of preventing the disadvantage of attracting and scattering fine dust in the room due to the concentrated discharge flow of the conventional method. This also has the effect that blades 5 having different inclination directions can be easily formed by overlapping the metal fan-shaped plates 4a.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway side view, FIG. 2 is a perspective view from below, and FIG. 3 is a perspective view of a metal sector plate. 1...Blowout outlet casing, 2...Filter layer, 3...Air outlet, 4...Airflow plate, 4a...・Metal sector plate, 5... Inclined blade.

Claims (1)

[Scope of utility model registration request] At the air outlet 3 of the outlet casing 1, which blows out clean air through a built-in filter layer 2, there is a metal fan-shaped plate 4 whose negative side edge is bent to form an inclined blade 5.
The airflow plate 4, which is composed of several sheets of the airflow plate A, which are formed by polymerizing and bonding together at the center so that the sloped blades 5 protrude radially, and the bending angles of the sloped blades 5 are different, is rotated by the airflow of the blown air. An air outlet for a clean room, which is provided to provide a clean room air outlet.