Patent · US Active

Method for cleaning and conditioning the water-steam circuit of a power plant, especially of a nuclear power plant

US9943890B2 · kind B2 · utility

1Cited by

6References

15Claims

0Family size

Assignee

AREVA GMBH · US

Inventors

Ute Ramminger · Roth, DE
Joerg Fandrich · Herzogenaurach, DE
Fernando-Mario Roumiguiere · Erlangen, DE

Key dates

Filing date	Dec 12, 2013
Grant date	Apr 17, 2018
Priority date	—
Expiry date	Aug 18, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E30/30
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for cleaning and conditioning the water-steam circuit of a power plant, especially of a nuclear power plant, uses an amine as a film-forming agent. The amine is metered into the working medium circulating in the water-steam circuit. The film-forming agent forms a hydrophobic film on the surfaces of the circuit. During the process, the concentration of at least one impurity contained in the water and the concentration of the film-forming agent in at least in the feed water of the steam generator are measured and monitored. The concentration of the film-forming agent is varied, as needed, subject to the concentration of the impurity.

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