| 摘要 |
PROBLEM TO BE SOLVED: To provide a two-shell type self-supporting boiler which is adaptive to an increase in size of a boiler structure.SOLUTION: A two-shell type self-supporting boiler (1) includes: a steam drum (2) arranged in a lateral direction; an upper header pipe (12a) arranged extending in a direction orthogonal to an axial direction of the steam drum; a water drum (4) arranged in a lateral direction opposite the steam drum in a vertical direction; a lower header pipe (12b) extending in a direction orthogonal to an axial direction of the water drum and arranged opposite below the upper header pipe; and a plurality of side wall evaporation pipes (26) extending in a longitudinal direction between the upper header pipe and lower header pipe, each having both ends joined to the upper header pipe and lower header pipe, and arranged in parallel along the axial directions of the upper header pipe and lower header pipe, a reinforcement plate (28) comprising a pair of plate-like reinforcement pads (28a) holding the plurality of side evaporation pipes arranged in parallel being provided at lower-end parts of the plurality of side wall evaporation pipes. |
