| 摘要 |
PURPOSE: To ensure the stability of water quality by enabling exhausting high TOC out of system immediately after water supply and preventing the oxidation degradation of ion exchange resin. CONSTITUTION: In a condensate demineralizing device of a reactor power plant, particle ion exchange resin in a demineralizing tower is washed with warm demineralized water of the similar temperature to the condensate. By this, high total organic carbon (TOC) immediately after water supply in the demineralizing tower 20 is reduced. A warm water supplier 27 and warm water inlets 31, 32 and 33 for supplying demineralized water for washing and nitrogen supplier 36 for demineralization are connected to a cation exchange resin recovery tower 22 and anion exchange resin recovery tower 23. To the condensate inlet pipe 29 in the demineralizing tower 20, a condensate temperature meter 34 is provided. By this, sudden TOC elution immediately after temperature rise and TOC elution from the ion exchange resin due to contact to high oxygen solution water and oxidation degradation can be suppressed. |
