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Updating of Control Valves for the Feed System of the Secondary Coolant Circuit of the VVÉR-1000 Unit
Abstract Limitations in the operation of D u 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 D u 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
Abstract Limitations in the operation of D u 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 D u 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. (author) / Filin, A. Ya. (author) / Aksenov, N. M. (author)
Power Technology and Engineering ; 38 ; 37-40
2004-01-01
4 pages
Article (Journal)
Electronic Resource
English
control valve , feed regulator of steam generators , flowing channel , erosion and mechanical wear , anti-cavitation protection , unloaded gate , throughput capacity , noise and vibration of regulators , measurement of pipeline thickness Engineering , Energy Technology , Power Electronics, Electrical Machines and Networks , Renewable and Green Energy , Geoengineering, Foundations, Hydraulics
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