| 摘要 |
PROBLEM TO BE SOLVED: To provide a temperature monitoring device of a rotary heat exchanger that can equally monitor the total monitoring area without causing any non-monitored point. SOLUTION: The temperature monitoring device is provided with a mirror 40 that is arranged above a rotary heat exchanger and receives infrared rays and reflects them outward in the radius direction, a lens 42 for condensing reflection infrared rays, and an infrared sensor 43 that receives condensed infrared rays and outputs an infrared intensity signal according to the intensity. The mirror is linearly driven by a motor 57 along the radius direction of the rotary heat exchanger. Also, the temperature monitoring device is provided with a rotary angle sensor 61 for outputting a rotary position signal according to the rotary angle of a rotary shaft 13 of the rotary heat exchanger, an imaging processing device 58 that perform speed regulation drive of the operation of the motor 57 and calculates a position where the mirror is being sent according to the amount of drive, receives the above rotary position signal and the infrared intensity signal, and changing an infrared intensity distribution to an imaging signal, and a display 59 for displaying the infrared intensity distribution by receiving the imaging signal. |
