Process for protecting steam generators from material damage

Details Process for protecting steam generators from material damage Process for protecting steam generators from material damage

1984-08-14

1986-11-11

Richman, Barry S.

Chemistry: analytical and immunological testing

Measurement of electrical or magnetic property or thermal...

Of a liquid

122403, 250435, 422 14, 422 24, 422 62, 436 38, 436 55, G01N 2100, G01N 2312, G01N 3508

Patent

active

046223061

ABSTRACT:
Decomposable organic compounds can, at times, be contained in the feedwater for steam generators; these decomposable compounds can stem from the untreated water supply or from the recondensate if the steam is utilized as heating steam for chemical plants and the condensate is recycled into the steam generator. The decomposition products can lead to damage to the material in the steam generator during long-term exposure.
A partial stream of the feedwater is continuously examined for such compounds; as soon as these occur, they are disintegrated in the partial stream by UV light. The decomposition products are detected by measuring conductivity and/or by means of ion-sensitive electrodes. This measuring process works very rapidly and is highly sensitive, making it possible to consistently recognize contaminated water quantities and then to remove same in a controlled fashion from the feedwater stream for the steam generator or to process same into unobjectionable feedwater.
The process permits the saving of large amounts of fresh feedwater, especially in steam generators with power-heat linkage in chemical plants.

REFERENCES:
patent: Re31507 (1984-01-01), Frost, III
patent: 1926953 (1933-09-01), McGill
patent: 3158444 (1964-11-01), Larson et al.
patent: 3267361 (1966-08-01), Maddox

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