| 摘要 |
<p>A suction apparatus (10) for suctioning a combustible material, potentially at risk of fire and/or explosion. The apparatus comprises a suction path (23) extending between an inlet mouth (26) of a mixture of air and of said combustible material, and an outlet mouth (28), said mixture forming, at least in one given section (15, 17, 22, 45) of said suction path (23), an atmosphere comprising a concentration of oxygen and a concentration of said combustible material. The apparatus (10) further comprises, in communication with said at least one section of said suction path (23), at least one first oxygen detection device (47, 52) apt to detect oxygen concentration in said atmosphere, at least one first combustible material detection device (40, 44) apt to detect the concentration of said combustible material in said atmosphere, at least one pressure detection device (48) and at least one modifier device (41, 60, 61, 62, 63, 64, 72) of said atmosphere. The modifier device is operatively connected to said first oxygen detection device (47, 52), to said first combustible material detection device (40, 44) and to said pressure detection device (48) for modifying said atmosphere when said oxygen concentration and said concentration of combustible material are in a determined relationship with respective reference concentrations.</p> |
