Regulating valve cavitation in the power station

Book · Sat Dec 31 04:00:00 EST 1994

OSTI ID:94468

Jozsa, I; Kiss, J ^[1]; Sebestyen, G ^[2]

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1. Paks Nuclear Power Plant Ltd. (Hungary). Technical Division Diagnostic Dept.
2. Technical Univ., Budapest (Hungary). Dept. of Fluid Machinery

The present paper will deal with the cavitation measurement of the regulating valve in the feedwater system (secondary circuit) of NPP Paks and also with the elimination of pipe vibration caused by cavitation. The cavitation measurements were made during normal operation of the nuclear power plant. The range of measurements, the technological scope were confined by the safety margins of operation. In spite of this fact the authors managed to determine the cavitation characteristics of the regulating vale almost full scale. On basis of the measurements they concluded that the regulating valve is hydraulically misfitted to the technological circle. This fact causes vibration and damaged not only the valve but also the pipeline.

• OSTI ID: 94468
• Report Number(s): CONF-940659--; ISBN 0-7918-1377-6
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
CAVITATION
EXPERIMENTAL DATA
MEASURING METHODS
MECHANICAL VIBRATIONS
NUCLEAR POWER PLANTS
PAKS-1 REACTOR
PAKS-2 REACTOR
PAKS-3 REACTOR
PAKS-4 REACTOR
PIPES
SECONDARY COOLANT CIRCUITS
VALVES