| 摘要 |
PURPOSE:To obtain a necessary quantity of ventilation by a simple operation device by correcting a standard table prepared from a relation between the necessary quantity of ventilation and the traffic according to the contamination in a tunnel and obtaining the necessary quantity of ventilation from the table. CONSTITUTION:A standard table prepared from a relation between the necessary quantity of ventilation and the traffic is filed into an operation controller 8 in advance. CO value and V1 value in a tunnel 3 successively measured by CO meters 9, 10 and VI meters 11-14 respectively, and these output is inputted into an operation controller 8 through an input and output device 7. The operation controller 8 drives the contamination in the tunnel 3 from the input, correcting the standard table according to the contamination to be obtained. The necessary quantity of ventilation is obtained according to the corrected table, controlling a jet fan 2 and an exhaust fan 6. |
