| 摘要 |
PROBLEM TO BE SOLVED: To provide a boiler system 1 capable of improving stability of a pressure in switching a manual operation to an automatic operation.SOLUTION: A boiler system includes a number control device 3 for controlling a combustion amount of a boiler group 2 to control a combustion state of the boiler group so that a steam pressure is kept within a predetermined set pressure range on the basis of the steam pressure measured by a stream pressure sensor 7. In switching the boiler group 2 from a manual operation to an automatic operation, the number control device 3 cancels a function of an all boiler standby portion 41, and replaces a value of the necessary steam amount in a control period immediately after the switching time, with the total value of output steam amounts output from all of the boilers burning immediately after the switching time.SELECTED DRAWING: Figure 1 |
