| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the occurrence of large fluctuation in a steam pressure value due to a delay in steam supply without greatly increasing cost of a device, in a boiler multi-can installation system controlling the number of equipment. <P>SOLUTION: In the boiler multi-can installation system, a plurality of boilers 1 and a controller 2 of the number of equipment are installed, steam is generated by heating water supplied from a common feed water tank 6 to each boiler 1, the steam generated in each boiler 1 is supplied to a steam using device after being collected, and the required number of boilers is used for combustion in the order of higher priority based on the steam pressure value in a steam collecting unit 5. A feed water preheating steam pipe 9 is provided for supplying the steam generated in each boiler 1 to the feed water tank 6, and a feed water preheating control valve 8 is provided for controlling steam supply to the feed water tank 6. When the number of boilers performing combustion is reduced and steam pressure is increased, the feed water preheating control valve 8 is opened to supply the steam to the feed water tank 6. <P>COPYRIGHT: (C)2012,JPO&INPIT |
