Water spray type desuperheater and desuperheating method

摘要

Disclosed is a water spray type desuperheater including: a desuperheating tube adapted to move superheated steam therealong and to conduct a mixing operation wherein the superheated steam and water are mixed; and a spray tube inserted vertically downward from the top of one side of the desuperheating tube into the desuperheating tube to introduce the water into the desuperheating tube, wherein the desuperheating tube includes venturi portions formed thereon in front of the spray tube to conduct the acceleration of the moving speed of the superheated steam, and the spray tube includes spray means formed on the portion inserted into the desuperheating tube to spray the water into the desuperheating tube, the spray means having at least one or more orifices.