DIRECT-FLOW MULTIZONE CONDITIONING SYSTEM Russian patent published in 2012 - IPC F24F3/06 

FIELD: ventilation.

SUBSTANCE: in a direct-flow multizone air conditioning system, comprising services zones in a room, in every of which there is an exhaust controlled gate connected by a manifold via a noise suppressor with a recirculation-exhaust fan, multizone systems include, apart from the main conditioner, local heaters equipped with control valves with servomotors installed on manifolds of coolant supply, and control valves installed at heated air supply manifolds into serviced zones accordingly via controlled gates, besides, local heaters are installed in accordance with the number of serviced zones in rooms, as a rule, in close proximity to the main conditioner, which comprises a supply chamber with valves, an air filter, sections of the first and second heating and a reserve heating section with control valves, which is necessary to prevent freezing of the first heating section, and a spray chamber comprises a header with nozzles, a tray with a filter and a pump set connected to a header via a controlled valve with the possibility of supplying cold water from a refrigerating machine, besides, the spray chamber via a guide vane is connected with a supply fan, which via a control gate and a noise suppressor is connected to the supply manifold connecting local heaters to each other, and each nozzle comprises a vessel, each nozzle of the nozzle spray chamber comprises a vessel, which is made hollow, axisymmetric, its axis is perpendicular to the axis of the header pipe hole, and the vessel shape is arranged in the form of a solid of revolution formed by a second-order curve, for instance, as spherical, in the form of a truncated ellipsoid or paraboloid of revolution, and at the side of a flow hole of the header pipe in the nozzle there is a straightening element, arranged in the form of a ring having a central bushing, with at least three rigidly connected radial blades joined with a nozzle vessel, besides, the vessel is arranged with two opposite ledges perpendicular to the axis of the nozzle, by means of the ledges the nozzle is fixed on the header via yokes with locks, at the same time in the lower part of the nozzle vessel there is a conical throttling hole connected with a mixing chamber, which is arranged between the throttling hole and the straightening element, and on the inner surface of the mixing chamber there are helical grooves, which are formed by contour turning or by casting, at the same time the pressure range is in the optimal range of values: from 1.2 to 7.0 m of water column, at the same time water flow via a nozzle (m³/hr) is determined using the following formula: where H - water head upstream a nozzle (m of water column).

EFFECT: higher efficiency and reliability of a dust catching process by increasing extent of liquid spraying by nozzles.

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