| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust gas sampling probe which can be inserted/removed into/from an exhaust gas duct and enables leaked ammonia contained in exhaust gas to be measured in real time without requiring a heating device.SOLUTION: There is provided the exhaust gas sampling probe configured in such a way that: an exhaust gas sampling probe 3 is formed which has an outer diameter enabling the sampling probe 3 to be inserted/removed into/from an exhaust gas duct 1 and which has a double tube structure composed of an outer tube 3b and inner tube 3a each opened at both ends; a small-sized denitration catalyst 4 for ammonia decomposition is fitted to a tip part 3' of the inner tube of the probe; a branch tube 3b' is provided which communicates with a cylindrical space of the outer tube; in opening part of the branch tube, a connection is formed which enables a first tube 6 to be attached/detached to/from the connection; in a rear end opening of the inner tube, a connection is formed which enables a second tube 5 to be attached/detached to/from the connection; exhaust gas having passed through the small-sized denitration catalyst, and exhaust gas not having passed through the small-sized denitration catalyst can be collected separately through the tubes by inserting the exhaust gas sampling probe into the exhaust gas duct.SELECTED DRAWING: Figure 2 |
