| 摘要 |
PROBLEM TO BE SOLVED: To provide a concentration distribution measurement device capable of acquiring the concentration distribution of a measurement object substance without collecting gas or fluid containing the measurement object substance and a denitration device.SOLUTION: A concentration distribution measurement device 1 includes: a light transmitting device 11 fixed to the outside of an apparatus 2 in which gas containing a measurement object exists for emitting a laser beam; a light receiving device 12 fixed to the outside of the apparatus 2 for receiving the laser beam propagating in the internal space of the apparatus 2; a reflection mirror 13 for reflecting the laser beam; a plurality of laser beam windows 15 disposed at the wall section of the apparatus 2 for blocking the circulation of gas between the inside and outside of the apparatus 2, and for allowing the laser beam pass; a guide rail 14 and a movable stand 19 for allowing the reflection mirror 13 to move outside the apparatus 2; and a control device 20 for controlling the reflection mirror 13 to move such that the two laser beam windows 15 are selected from among the plurality of laser beam windows 15, and that the laser beam passes through the internal space of the apparatus 2 on the basis of a laser path inside the apparatus 2. |
