To gather an exhaust gas sample for more accurate and stable dioxin measurement analysis by inserting a sampling tube and the like for sampling dioxin in an exhaust gas from a duct measurement hole together at a specific position in the duct.
The fixing tool is provided with a recessed catch part with partition plates 5a and 5b for supporting a Pitot tube 2 for measuring the flow rate of an exhaust gas, a post that is fixed to the catch part, and a fixing means for fixing a flange part 10 and a post 7 being provided on the side surface. For inserting sampling tubes consisting of a glass tube 1 for sampling dioxin, the Pitot tube 2, a gas-sampling tube 3 for analyzing combustion gas constituents, and a gas-sampling tube 4 for measuring water content into a specific position in a duct together, the sampling tubes are installed side by side at a catch part 6 in a U shape for fixing the tubes stably. Then, by placing the pipes at the catch part 6 in the U shape side by side, a gap formed between the duct hole 11 and the plurality of sampling tubes can cover the gap.
OTA KEIICHI
SANUKI KENICHI
TOKUOKA HIROAKI
