DENITRATION APPARATUS AND DENITRATION FACILITY FOR TUNNEL

摘要

PROBLEM TO BE SOLVED: To provide a denitration apparatus capable of evenly using the removal function of a denitration agent and suppressing an increase in pressure loss by making a face velocity of an exhaust gas even to the denitration agent built in a denitration agent unit even in an installation space narrow in the height direction or width direction relatively to the tunnel extensional direction and a denitration facility for a tunnel.

SOLUTION: The denitration apparatus is for removing nitrogen oxides by introducing an exhaust gas containing nitrogen oxides into an exhaust gas flow channel 1 and leading the exhaust gas to denitration agent units 11A to 11F, 12A to 12F installed in the exhaust gas flow channel 1 and the denitration agent units 11A to 11F, 12A to 12F are arranged in a plurality of stages in the exhaust gas flow direction, and the angle between the exhaust gas flow-in face of the denitration agent unit 11A installed in the upstream side and the exhaust gas flow direction is made wider than the angle between the exhaust gas flow-in face of the denitration agent unit 11F installed in the downstream side and the exhaust gas flow direction.

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