| 摘要 |
PURPOSE:To provide a discharging device capable of detecting variation of a discharging load and further capable of performing a positive discharging operation. CONSTITUTION:An outer circumferential edge of a discharging hood 1 is provided with a device 7 for adjusting the degree of opening of the hood. A smoke sensor 9, a gas sensor 10 and a pressure sensor 11 arranged in a discharging duct 3 are installed within the discharging hood 1. There are provided a pressure sensor 12, a discharging fan rotation control means 17 for controlling the number of rotation of a discharging fan 2 according to a sensing signal sent from the smoke sensor 9, an air feeding fan rotation control means 18 for controlling the number of rotations of the air feeding fan 4 according to an designating signal sent from the gas sensor 10, and a controller 13 having means 19 for setting the degree of opening of the hood setting the degree of opening of the device 7 for adjusting the degree of opening of the hood according to the pressure difference detected by both pressure sensors 11 and 12. |
