A LOWER EXHAUSTION DEVICE FOR OIL SMOKE, POWDER AND DUST AND A RANGE EQUIPPED WITH THE SAME

摘要

A lower exhaustion device for oil smoke, powder and dust and a range equipped with the same are provided. The device comprises a double-layer tubular collection chamber (50) surrounding the range and a circulation line communicated with the collection chamber (50), which includes a main line (20) communicated with the collection chamber (50), an exhaust duct (6) connected with the main line (20), and a biased line (30). A fan (10) is placed in the main line (20), the top end of the biased line (30) is opened at the oil smoke, powder and dust diffusion level (2), where an outlet grille (31) is placed, at least one layer of inlet grille (21) is positioned inside the upper portion of the collection chamber (50), and a separator (80) for the oil smoke, powder and dust is positioned in the main line (20) between the fan (10) and the collection chamber (50).