FUEL SYSTEM EXPANSION METHOD AT EXPANSION OF POWER GENERATION EQUIPMENT

To extremely shorten a construction period even if a fuel tank is in expansion construction, and to surely operate equipment at an emergency.SOLUTION: A fuel system expansion method at the expansion of power generation equipment in this embodiment performs: a process for expanding new power generation equipment in a power generation system having existing power generation equipment; a process for installing first fuel supply equipment including first power supply piping for supplying fuel to expansion-objective power generation equipment; a process for installing temporary fuel supply piping for supplying fuel to the existing power generation equipment from the first fuel supply equipment by utilizing at least a part of the fuel supply piping; a process for installing second fuel supply piping for supplying fuel to the existing power generation equipment from the first fuel supply equipment in a state that the supply of fuel to the existing power generation equipment by the temporary fuel supply piping is possible; and a process for removing the temporary fuel supply piping after the supply of fuel to the existing power generation equipment by the second fuel supply piping becomes possible.SELECTED DRAWING: Figure 1 【課題】燃料タンクの増設を行う場合であっても、工事期間を極力短縮し、非常時により確実に設備を稼働する。【解決手段】実施形態の発電設備増設時の燃料系統増設方法は、既設発電設備を有する発電システムにおいて、新たな発電設備の増設を行う工程と、増設の対象の発電設備に対して燃料を供給するための第１燃料供給配管を含む第１燃料供給設備を設置する工程と、燃料供給配管の少なくとも一部を利用して、既設発電設備に対して第１燃料供給設備から燃料を供給するための仮設燃料供給配管を設置する工程と、仮設燃料供給配管による前記既設発電設備に対する燃料供給が可能な状態において、既設発電設備に対して第１燃料供給設備から燃料を供給するための第２燃料供給配管を設置する工程と、第２燃料供給配管による既設発電設備に対する燃料供給が可能となった後に、仮設燃料供給配管を撤去する工程と、を備える。【選択図】図１