| 摘要 |
PROBLEM TO BE SOLVED: To extend an endurance period of a booster pump in a boiler including the booster pump arranged in a water supply line.SOLUTION: The boiler 1 includes a can body 2, an air blower 3, a duct 4, an exhaust cylinder 5, a separator 6, the water supply line 10 and a controller 30. A water supply pump 13 and the booster pump 20 are installed in the water supply line 10, and a pressure switch 25 for detecting boiler interior pressure is installed in the separator 6. The controller 30 performs control to continue the operation of the booster pump 20 when the boiler interior pressure exceeds a predetermined value, based on output of the pressure switch 25. |
