Directional air diffuser panel for clean room ventilation system
First Claim
Patent Images
1. A clean room air diffusion system for controlling an airflow, the system comprising:
- a support grid having grid elements defining a panel space for transmitting the airflow, and defining a dead space below the grid elements; and
a diffuser panel attached to the grid in registration with the panel space having a central region and a peripheral region, the central region defining a plurality of perforations, the aggregate area of the perforations being a first fraction of the total area of the central region, the peripheral region defining a plurality of openings, the aggregate area of the openings being a second fraction of the total area of the peripheral region, the second fraction being greater than the first fraction, in that the peripheral region is more perforated per unit area than the central region, thereby to fill in the dead space below the grid.
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Abstract
A clean room diffuser panel for positioning below a ceiling grid mounted filter element. The diffuser panel is perforated throughout its area with increased size and density of perforations in a peripheral region to provide increased airflow beneath the ceiling grid. The peripheral regions are further angled or provided with directional vanes to create a lateral airflow beneath the ceiling grid.
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Citations
15 Claims
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1. A clean room air diffusion system for controlling an airflow, the system comprising:
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a support grid having grid elements defining a panel space for transmitting the airflow, and defining a dead space below the grid elements; and a diffuser panel attached to the grid in registration with the panel space having a central region and a peripheral region, the central region defining a plurality of perforations, the aggregate area of the perforations being a first fraction of the total area of the central region, the peripheral region defining a plurality of openings, the aggregate area of the openings being a second fraction of the total area of the peripheral region, the second fraction being greater than the first fraction, in that the peripheral region is more perforated per unit area than the central region, thereby to fill in the dead space below the grid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A filter and diffuser apparatus comprising:
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an air filter having a frame and a filter element supported by the frame for transmitting airflow; a diffuser panel attached to the filter frame and having a central region defining a set of perforations providing a first free area and a peripheral region defining a set of openings providing a second free area greater than the first free area, in that the peripheral region is more perforated than the central region, such that the peripheral airflow reduces turbulence by filling in the dead space below any adjacent obstacle. - View Dependent Claims (15)
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Specification