BOILER, STEAM-GENERATING PLANT PROVIDED WITH SAME, AND METHOD FOR OPERATING BOILER

摘要

This boiler (110n) is provided with one or more evaporators (113a, 113c), an economizer (112a), and a low-temperature heat exchanger (115a). The economizer (112a) is installed downstream from the furthest-downstream evaporator (113a), which is the evaporator that is furthest downstream among the one or more evaporators (113a, 113c). The low-temperature heat exchanger (115a) is installed downstream from the economizer (112a), the low-temperature heat exchanger (115a) having an inlet through which water is drawn from the outside, and water is heated from combustion gas that flows in through the inlet and reaches the economizer (112a).