How does the pressure vessel adjust the rise and fall of the steam temperature

1. The method of reducing the steam temperature

1. If there is a desuperheater, the water flow of the desuperheater can be increased.

2. Steam injection to reduce temperature. At the inlet and outlet of the gas storage tank, spray it properly to the saturated pressure vessel to reduce the temperature.

3. Carry out ash discharge on the heated surface in front of the overheating vessel. If the ash is discharged to the reheater, it can increase the heat absorption of the volatile heating surface in the furnace, reduce the excess air coefficient at the entrance and exit of the furnace, and then reduce the heat transfer temperature of the heating surface.

4. Reduce excess capacity within the allowable range.

5. Raise the water supply and drainage temperature. When the load does not change, increasing the water supply and drainage temperature will inevitably weaken the ignition so as not to increase the annual rainfall. The weakening of the ignition will reduce the amount of soot and soot water flow, reduce the heat absorption of the heating surface, and then make the super The temperature of the pressure vessel decreases.

6. Make the ignition management sink. Appropriately reduce the induced draft fan and fan, so that the flame in the furnace sinks, so that the amount of smoke and dust entering the heating surface is reduced, the excess air coefficient is reduced, and the temperature is reduced.

2. The method of raising the temperature

1. Carry out ash discharge on the heating surface to improve its endothermic reaction ability.

2. Reduce water supply and drainage temperature.

3. Increase the exhaust air volume and shift the ignition management.

4. If there is a desuperheater, the cooling water flow rate can be reduced.