Mitsubishi Power, Ltd.

Naoyuki Yoshizumi

Seiji Kagawa

Satoru Sugita

Tetsu Ushiku

Tsuyoshi Miyachi

Ryozo Sasaki

Provided is a desulfurization device that allows for the easy and accurate disposition of a spray pipe inside an absorption tower. Provided is a desulfurization device including: an absorption tower (); and a spray pipe () disposed inside the absorption tower (). The spray pipe () includes: a cylindrical pipe portion (), the leading end of which is closed; and an attachment flange () attached to the pipe portion (). The absorption tower () includes: an opening hole () opening toward the side; and a flange () disposed around the opening hole (). The attachment flange () and the flange () are detachably attached.

Desulfurization device

A method for installing a spray pipe, including an insertion step of inserting a spray pipe from an opening portion, a positioning step of positioning the spray pipe such that an installation surface of a leg portion faces a supporting surface of a supporting portion, a provisional tightening step of provisionally tightening a first fastening portion to couple an attachment flange with the opening portion, an adjusting step of adjusting the height of the installation surface relative to the supporting surface such that an axis along which a pipe portion extends coincides with the horizontal plane, in the provisionally tightened state resulting from the provisional tightening step, a coupling step of coupling the leg portion to the supporting portion by means of a second fastening portion, after the adjusting step, and a final tightening step of performing a final tightening of the first fastening portion after the coupling step.

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Yokohama, Japan

Naoyuki Yoshizumi