WASTE HEAT BOILER

摘要

Provided is a waste heat boiler which enables the prevention of the biased flow of process gas and a local temperature difference caused thereby, the prevention of the deformation and damage of a component disposed in a shell, and the reduction of cost by a simple structure. Specifically provided is a waste heat boiler (1) provided with: a cylindrically formed outer shell (2) which extends in a vertical direction; a water chamber (17) provided with a first chamber (19) to which water is supplied and a second chamber (20) into which heated water and water vapor flow; a plurality of heat transfer tubes (24); a plurality of plate-shaped members (31) which extend in the direction orthogonal to the plurality of heat transfer tubes (24) and are arranged along the vertical direction of the outer shell (2), and a bypass tube (37) which extends from the upper portion of the outer shell (2) to the lower portion of the outer shell (2) along the vertical direction of the outer shell (2) and through which the process gas that has flowed into the outer shell (2) is discharged.