Title:
CORROSION CONTROL METHOD OF POWER PLANT, AND POWER PLANT
Document Type and Number:
Japanese Patent JP2018145514
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent a corrosion control method of a power plant capable of improving anticorrosion properties in an extraction system of a power plant, and a power plant.SOLUTION: A power plant is equipped with a steam generation mechanism for heating feedwater and generating steam, a high pressure turbine for introducing and working the steam generated in the steam generation mechanism, a low pressure turbine for introducing and working the steam having passed the high pressure turbine, a high pressure turbine extraction system for extracting steam from the high pressure turbine, and a low pressure turbine extraction system for extracting steam from the low pressure turbine. In a corrosion control method of the power plant, an agent containing a first anticorrosive of a pH higher than 7 in an aqueous solution state is injected into the feedwater, wherein, the first anticorrosive has a boiling point lower than the temperature in the steam generation mechanism and higher than the temperature in the high pressure turbine extraction system.SELECTED DRAWING: Figure 1
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Inventors:
SHIBAZAKI OSAMU
HARA TAKAHIRO
OKAMURA MASAHITO
HARA TAKAHIRO
OKAMURA MASAHITO
Application Number:
JP2017044915A
Publication Date:
September 20, 2018
Filing Date:
March 09, 2017
Export Citation:
Assignee:
TOSHIBA CORP
TOSHIBA ENERGY SYSTEM & SOLUTION CORP
TOSHIBA ENERGY SYSTEM & SOLUTION CORP
International Classes:
C23F14/02; C23F11/14; F01D25/00; F01K9/00
Attorney, Agent or Firm:
Patent Business Corporation Sakura International Patent Office