Development of large-capacity main steam isolation valves and safety relief valves for next-generation BWR plant

Conference · Mon Jul 01 00:00:00 EDT 2002

OSTI ID:21167864

Nishimura, Mitsugu ^[1]; Furukawa, Shin-ichi ^[2]; Itoh, Gen ^[3]; Takeshima, Kikuo ^[4]

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1. Tokyo Electric Power Company, 1-3 Uchisaiwai-cho, 1-chome, Chiyoda-ku, Tokyo 100-0011 (Japan)
2. Toshiba Corporation Power Systems and Service Company, 8, Shinsugita-cho, Isogo-ku, Yokohama 235-8523 (Japan)
3. Japan Atomic Power Company, Ohtemachi Bldg., 6-1, 1-chome, Ohtemachi, Chiyoda-ku, Tokyo 100-0004 (Japan)
4. Hitachi, Ltd., 1-1 Saiwai-cho, 3-chome, Hitachi-shi, Ibaraki-ken 317-8511 (Japan)

A study was made of high capacity main steam isolation valves (MSIV) and safety relief valves (SRV) for the main steam line of a boiling water reactor (BWR). The next-generation BWR plants, which are planned to have higher thermal power, have raised concerns relating to the main steam line of an increase in maintenance work to SRVs and erosion of the MSIV valve seat due to the increased main steam flow velocity. In this research project, the capacity of the MSIV and SRV was increased and the valve configuration was changed in an attempt to solve these problems. (authors)

• Research Organization: American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
• OSTI ID: 21167864
• Resource Relation: Conference: ICAPP'02: 2002 International congress on advances in nuclear power plants, Hollywood, FL (United States), 9-13 Jun 2002; Other Information: Country of input: France; 1 ref
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
BWR TYPE REACTORS
CAPACITY
CONFIGURATION
EROSION
MAINTENANCE
RELIEF VALVES
SAFETY
STEAM
STEAM LINES