METHOD AND THE DEVICE FOR PURIFICATION OF THE STREET AIR Russian patent published in 2007 - IPC F24F3/16 

FIELD: power industry; methods and the devices for purification of the street air.

SUBSTANCE: the invention is intended for purification of the street air and may be used in the power industry. The method of purification of the street air includes refrigeration and moistening of air stream, absorption of the soot particles and the dust in the irrigation chamber by the spattered feed water, the intake of the street air from the most gas-polluted carriageway of the street, the delivery of the purified air into the pedestrian zone of the street. The feed water is used in the chamber of the irrigation for absorption of the carbon dioxide, nitrogen oxides, sulfur oxides. The feed water is produced by mixing of the fresh water with the recycling water acidified in the irrigation chamber, and the part of the acidified water is withdrawn with the slime. In the purification chamber conduct removal of the residual nitrogen oxides, sulfur oxides and the withdrawn drips by the saturated with acidic components acidified water, and as the result of their interaction with the slaked lime (Са(OH₂)) covering the surface of the perforated cassettes being in the detachable containers with formation of calcium nitrite(Ca(NO₂)₂), calcium sulfate (CaSO₄), calcium nitrate (Ca(NO₃)₂), calcium bicarbonate (CaCO₃), which remain on the surface of the cassettes; remove the residual water drips left on the separating laminas, ionize the air in the ionizing device. The device for purification of the street air includes the body with the inlet fan arranged inside it and the chamber of irrigation with the sprinkling device. The body is covered by the cover, contains the pan, and is parted by the vertical partition with the window in its lower part for the irrigation chamber and the chamber of purification. The external wall of the irrigation chamber in its upper part under the cover is supplied with the intake lattice, and inside the irrigation chamber there are the inlet fan and the spraying device consisting of the vertical distribution riser pipes with the spray jets. In the purification chamber there are containers with the vertical perforated cassettes covered with the layer of the slaked lime (Са(OH)₂), the separating laminas, the ionizing device, the exhaust fan and the distributing lattice. The invention ensures the increased efficiency of the street air purification with the simultaneous utilization of the trapped nitrogen oxides, sulfur oxides, carbon dioxide.

EFFECT: the invention ensures the increased efficiency of the street air purification with the simultaneous utilization of the trapped nitrogen oxides, sulfur oxides, carbon dioxide.

2 cl, 1 dwg