Patent · US Expired

Method and device for the protection of steam generators, especially nuclear reactor steam generators

US4775005A · kind A · utility

17Cited by

7References

18Claims

0Family size

Assignee

Kraftwerk Union Aktiengesellschaft · DE

Inventors

Werner Beyer · Erlangen, DE
Norbert Wieling · Igensdorf, DE
Bernhard Stellwag · Nuremberg, DE

Key dates

Filing date	Feb 11, 1986
Grant date	Oct 4, 1988
Priority date	—
Expiry date	Feb 11, 2006

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E30/30
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for the corrosion protection of steam generators having a housing containing feed water and enclosing a tube bundle with tubes conducting a heat carrier includes continuously determining the redox potential of the feed water during operation of the steam generator, continuously determining the corrosion potential of at least one tube of the tube bundle during operation of the steam generator, and negatively shifting the redox and corrosion potentials by changing the chemical conditioning of the feed water if the potentials indicate the danger of corrosion, and a device for carrying out the method.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.