| 摘要 |
PROBLEM TO BE SOLVED: To provide a boiler multiple-can installation system capable of preventing sudden drop of a steam pressure value due to delay in steam supply, and stably supplying steam, in the boiler multiple-can installation system in which the number of boilers is controlled. SOLUTION: In this boiler multiple-can installation system in which the plurality of boilers 1 are disposed, the steam generated by the plurality of boilers is once collected in a steam collecting section 5 and supplied to a steam demand section, and a number control device 2 is disposed to output combustion commands successively from the boilers of higher priority on the basis of the steam pressure value detected by a pressure detecting device 4 disposed on the steam collecting section 5, the number control device 2 estimates a time when combustion of all boilers are stopped on the basis of a slope of the steam pressure value in a state that the number of boilers in combustion becomes one, and performs the control to output a command of preparation for combustion to one boiler of which the combustion is stopped, earlier when the time to the stop of all of boilers reaches a prescribed time T or less. COPYRIGHT: (C)2011,JPO&INPIT
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