Updating of Control Valves for the Feed System of the Secondary Coolant Circuit of the VVÉR-1000 Unit: Fid-Bau Portal

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Updating of Control Valves for the Feed System of the Secondary Coolant Circuit of the VVÉR-1000 Unit

Zubkov, N. P. / Filin, A. Ya. / Aksenov, N. M.

Abstract Limitations in the operation of Du 400 shutter control valves used in the feed system of secondary coolant circuits of VVÉR-1000 power-generating units are described. A method is suggested for removing these limitations by equipping the control valves with an unloaded gate and anti-cavitation protection of the flowing channel. The technical characteristics and description of the design of the updated Du 400 control valve are presented. Problems in experimental study of the updated valve and its in-situ testing are described. Results of vibroacoustic tests and of measurement of the thickness of branch pipes and adjoining conduits of the valve are presented.

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Updating of Control Valves for the Feed System of the Secondary Coolant Circuit of the VVÉR-1000 Unit

Zubkov, N. P. / Filin, A. Ya. / Aksenov, N. M.

Abstract Limitations in the operation of Du 400 shutter control valves used in the feed system of secondary coolant circuits of VVÉR-1000 power-generating units are described. A method is suggested for removing these limitations by equipping the control valves with an unloaded gate and anti-cavitation protection of the flowing channel. The technical characteristics and description of the design of the updated Du 400 control valve are presented. Problems in experimental study of the updated valve and its in-situ testing are described. Results of vibroacoustic tests and of measurement of the thickness of branch pipes and adjoining conduits of the valve are presented.

Updating of Control Valves for the Feed System of the Secondary Coolant Circuit of the VVÉR-1000 Unit

Zubkov, N. P. / Filin, A. Ya. / Aksenov, N. M.

Abstract Limitations in the operation of Du 400 shutter control valves used in the feed system of secondary coolant circuits of VVÉR-1000 power-generating units are described. A method is suggested for removing these limitations by equipping the control valves with an unloaded gate and anti-cavitation protection of the flowing channel. The technical characteristics and description of the design of the updated Du 400 control valve are presented. Problems in experimental study of the updated valve and its in-situ testing are described. Results of vibroacoustic tests and of measurement of the thickness of branch pipes and adjoining conduits of the valve are presented.

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Title:

Updating of Control Valves for the Feed System of the Secondary Coolant Circuit of the VVÉR-1000 Unit

Contributors:

Zubkov, N. P. (author) / Filin, A. Ya. (author) / Aksenov, N. M. (author)

Published in:

Power Technology and Engineering ; 38

Publication date:

2004

ISSN:

DOI:

https://doi.org/10.1023/B:HYCO.0000029632.50769.7c

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

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