| In order to solve the problem of excess temperature of the superheater and the reheater in Shangan power station we put a trail on the 350MW W flame boiler. Basied on the trail of on warp of the heat and the fume temperature of the exit of the furmace tank we discussed the calculate method of the heating calculation. After the calcuationg of the heating performance and the temperature of heating surface, we can find where excess temperature appears and why it happens. Finally, we give some advice to design and rebuild the W flame boiler.
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