CONTROL METHOD OF ONCE-THROUGH BOILER AND DEVICE THEREFOR

摘要

PROBLEM TO BE SOLVED: To enable improvement of thermal efficiency and reduction of equipment cost and power cost by decreasing an amount of circulating water while capable of maintaining integrity of a furnace wall in a control method of the once-through boiler and a device therefor.

SOLUTION: The once-through boiler producing superheated steam which is generated by a heat exchange with an inner heat source by supplying water to a heat transfer tube 53 in boiler 10 includes: a water supply pump 52 for supplying water to the heat transfer tube 53; and a control device 67 for adjusting water supply to the heat transfer tube 53 by the water supply pump 52 based on quality of the steam.

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