REPAIR METHOD FOR BURNER, BURNER, BOILER, AND POWER GENERATION PLANT

To provide a repair method for a burner that can repair a damaged part by a quick and simple method even if the damaged part occurs in a burner body, the burner, a boiler, and a power generation plant.SOLUTION: A repair method for a burner comprising a cylindrical burner body 210 through which mixed gas including fuel flows comprises: a removal step of removing a predetermined portion including a damaged part occurring in a wall part 211 of the burner body 210, from the wall part 211 of the burner body 210; a production step of providing a repair material 240 having a shape corresponding to a defective portion formed in the wall part 211 by the predetermined portion, on a plate material 250 having a shape along an inner peripheral surface of the wall part 211; and a connection step of connecting the plate material 250 to the inner peripheral surface of the wall part 211 while the repair material 240 is located in the defective portion.SELECTED DRAWING: Figure 12 【課題】バーナ本体に損傷箇所が生じた場合であっても、迅速に、かつ、簡便な方法で損傷箇所を補修することができるバーナの補修方法、バーナ、ボイラ及び発電プラントを提供する。【解決手段】燃料を含む混合ガスが流通する筒状のバーナ本体２１０を備えているバーナの補修方法であって、バーナ本体２１０の壁部２１１に生じた損傷箇所を含んだ所定部分をバーナ本体２１０の壁部２１１から取り除く取除工程と、所定部分によって壁部２１１に形成された欠損部分に対応した形状の補修材２４０を壁部２１１の内周面に沿った形状の板材２５０に設ける製作工程と、補修材２４０が欠損部分に位置した状態で板材２５０を壁部２１１の内周面に接続する接続工程と、を具備している。【選択図】図１２