| 摘要 |
PROBLEM TO BE SOLVED: To provide a boiler capable of efficiently heat-exchanging between blow water and supplied water by concentrated blow. SOLUTION: The boiler 1 includes a can 3, a steam-water separator 5, a steam taking-out line 6, a downcomer 7, a water supply line 11 for supplying water to the can 3, a concentrated blow line 15 for performing the concentrated blow, a heat exchanger 20 for heat-exchanging between the supplied water of the water supply line 11 and the blow water of the concentrated blow line 15, and a controller 30. The concentrated blow line 15 is installed with a concentrated blow valve 16 and a strainer 17. The concentrated blow valve 16 is an electric proportional control valve capable of continuously adjusting flow rate. The controller 30 controls a water supply pump 12 and the concentrated blow valve 16 so as to make the heat exchanger 20 continuously heat-exchange between the supplied water and the blow water by performing continuous water supply and continuous concentrated blow. COPYRIGHT: (C)2010,JPO&INPIT |
