LOCAL AIR CLEANING DEVICE Russian patent published in 2016 - IPC F24F7/06 

FIELD: treatment plant.

SUBSTANCE: invention relates to local air cleaning. It includes two supply fans to blow uniform flow of purified air and pair of air ducts to form through surface on end part from outlet side of air ducts. Fans are arranged so that their respective through surfaces facing each other and are spaced from each other with formation of open flow area between surfaces of air ducts. At that, collision of uniform flows cleaned air is enabled, blowing from corresponding through surfaces, with each other in open area and output of open area so that inside air ducts and inside the open area providing working area with higher purity than in other fields. Besides, air ducts are made with possibility of increasing working area at maintenance of higher purity of air by distance between through surfaces for air flow together with air ducts is more than distance between through surfaces for air flow, do not have air ducts on side of each of them.

EFFECT: this enables to generate wide space of clean air.

9 cl, 14 dwg, 16 tbl