Sunday, June 12, 2011

Air distribution

Diffuser - a device through which air enters from the inlet duct into the room. In the ventilation air diffusers shall issue such a way that would conform to the aesthetic requirements that predyavlyayutsya to the premises. On a design diffusers and devices vozduhoudaleniya quite varied: 1. Vents, 2. Diffusers (diffusers), 3. Perforated panel 4. Slot air diffusers, 5. Nozzle air, etc. According to the geometric shape of the jet, served air diffusers can be: compact jets are formed with the release of air from the cylindrical tubes, round and rectangular holes. Flat jet formed at the end of the air gap channels air curtains, active air distribution, rectangular, elongated holes. Fan jet formed in the distribution of air through the nozzle with a flat disc, installed across the flow. Incomplete fan jets are formed with the release of air through the lattice with divergent at a certain angle blades. This jet is gradually transformed into a compact jet. Conical jet (a kind of fan) can be created with the release of air through a nozzle with a cone or a ceiling diffusers in them flat reflective disc. Grille grille can supply and exhaust, regulated and unregulated, round, square, rectangular, metal or plastic, different colors and sizes, with the direction of air in one, two, three or four sides. There are special grating designed for operation in humid and corrosive environments. Depending on the design grid to create compact, flat, single-fan, or other types of jets. As a rule, the lattice as inlet and exhaust systems are installed on the walls above the serviced area. They can be specially designed for installation in a ceiling or floor for feeding or removing air. There are transfer unit designed for cross-flow of air from one room to another. The transfer unit is usually made of plastic and can be wall or door, of different colors, sound and light sensitivity. Mounting grids can be on the screws or special times. Diffusers (diffusers) shades (cones) are called diffusers, are intended for placement on the ceiling and creating a fan or cone-shaped jet. By construction, the ceiling may be a disc and mnogodiffuzornymi. Circular ceiling has a flat disk, leaving between themselves and the housing diffuser annular gap through which the conical jet of air. Mnogodiffuzornye ceiling consist of a series of cones with increasing diameters. Diffusers can be air-supply, exhaust and universal, regulated and unregulated, round, square or rectangular, metal or plastic disc and mnogodiffuzorynye ceiling may have controls air flow and the characteristics of the jets. Perforated diffusers Perforated diffusers are perforated panel or duct of round or rectangular cross-section with small holes (perforations) in the walls, arranged in several rows. While distributing the air through perforated panels remove air from the room as possible from the work area, and from the upper zone of the room. To remove air produced perforated grid, which consists of a perforated steel plate, mounted on an aluminum frame. Widespread use of perforated diffusers were in public buildings, in areas with low altitude. Slotted Slotted air diffusers air diffusers creates a flat jet. Compared with the lattice, in the same area vent, slot diffusers form a jet with a long range. Slot diffusers are inlet and retractable, non-regulated and the regulation of flow and direction of the air, steel, aluminum and some plastics. Slot diffusers are designed for wall, ceiling and floor installation Nozzle Nozzle air diffusers are designed to distribute air from the high velocity of the flow (up to 30-40m / s). Air is supplied to the main runners and streams. Basic compact jets are a small number of conventional air distributing grids, through which 70-90% of the total air supply comes with a small initial velocity (up to 4 m / s). Additional horizontal and vertical nozzles located along the main stream, create additional guides the jet, having a greater initial velocity. Horizontal direction of the jet to provide additional pulses of the main stream than increasing the area of ??the system.

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