| 摘要 |
PURPOSE:To conserve an operator, to control combustion air flow rate and to prevent disturbance of draft control of a furnace by preventing an abnormal fall or rise of an outlet draft of an air preheater occurring at the time of starting/stopping of a one side smoke flue system during operation of a combustion apparatus and automation of starting/stopping operations of the system. CONSTITUTION:A furnace draft and an air flow rate control deviation are monitored, and a dynamic blade 1 or 2 of a starting/stopping side is temporarily stopped or decelerated at its speed due to a large deviation, thereby preventing disturbance. Prevention of stopping of an air preheater AH outlet draft is performed by adding a system for controlling an IDF inlet draft by the blade 1 of an IDF 2 and a one side fan suction air flow rate control system by the blade 11 of an FDF 12 and adding an IDF inlet connection damper 14 for connecting outlet lines of the AH 6 of the sides A and B. |
