| 摘要 |
PROBLEM TO BE SOLVED: To provide a combustion air supply method for a forced draft type boiler and a device capable of supplying a deficient combustion air amount to the forced draft type boiler even when a combustion air amount more than the capacity of a push-in draft fan (FDF) cannot be supplied in the forced draft type boiler having an exhaust gas recycling piping line.SOLUTION: When a combustion air amount more than the capacity of a push-in draft fan of a combustion air piping line for supplying combustion air to the forced draft type boiler is demanded, by changing an object fluid in an exhaust gas recycling fan of the exhaust gas recycling piping line to the combustion air from the exhaust air, it is supplied to the forced draft type boiler in conjunction with the combustion air in the push-in draft fan.SELECTED DRAWING: Figure 2 |
