| 摘要 |
PROBLEM TO BE SOLVED: To provide a multi-can installation boiler which uniformizes operation state and prevents shortage of steam supply in the multi-can installation boiler using combined combustion with first fuel and second fuel.SOLUTION: In a multi-can installation boiler, a process of firstly advancing the order of a boiler to be advanced to the uppermost order among operation priority order unchanged boilers when an operation priority order is changed, a process of nextly, when there is a boiler for exchanging fuel to be supplied in accordance with the operation priority order change from a first fuel to a next fuel, exchanging the supply fuel for the boiler, a process of further nextly, when there is a boiler for exchanging the fuel to be supplied in accordance with the operation priority order change from the second fuel to the first fuel, exchanging the supply fuel for the boiler and a process of lastly performing the order change in a boiler in which the order is duplicated due to the prior operation priority order change and the change of the order is not performed as yet are successively performed, and the processes are repeated until the change of the order is completed in all of the boilers in which the operation priority order should be changed. |
