Study Of Superheater Overheating Of Pure Firing Blaster Furnace Gas High Temperature High Pressure Boiler

Superheater is one important part of boiler setting. As a result of its bad condition, accidents of overheating and bursting of tubes often occur. It is an emphasis to study superheater at all times. Not only the specialities of structure and characters of material, but also the features of operation and characters of absorbing heat are related and analyzed on the superheater in the electric power station. The usual types of damage on the superheater are also discussed. The thesis analyze the characteristics property of burning of the blast-furnace gas, build the model of absorption of heat according with the theory of heat transfer, find out blast-furnace gas heat value and amount of gas relation, calculates transmit quantity of heat and metal wall temperature of boiler's main heating surface, and determine the cause for entire overheating of superheater.Final suggested that give first place to adjusting the parameter controlling operation and reform main heating surface, get fairly good effect in actual operation.