Chemiluminescence nitrogen oxide analyzer

The utility model discloses a nitrogen oxide analyzer adopting a chemiluminiscence method. The chemiluminiscence analyzer comprises a chemiluminiscence analyzer body, a sample storage box, a working bearing and a positioning ring, a sample storage box is welded and fixed on the side of the chemiluminescence analyzer body; the mounting plate is connected with the top of the pull rod; the bottom ofthe pull rod is mounted at the top of an outer ring of the working bearing, an inner threaded sleeve is welded and fixed to an inner ring of the working bearing, the bottom of the outer ring of the working bearing is welded and fixed to the top of the positioning ring, the inner side of the inner threaded sleeve is in threaded connection with a side threaded rod, and the side threaded rod is welded and fixed to the outer wall of the chemiluminescence analyzer body. According to the nitrogen oxide analyzer adopting the chemiluminescence method, a novel structural design is adopted, the sample gas storage pipe can be st