Control rod drives
Description
Purpose: To improve the reliability of a device for driving an LMFBR type reactor control rod by providing a buffer unit having a stationary electromagnetic coil and a movable electromagnetic coil in the device to thereby avord impact stress at scram time and to simplify the structure of the buffer unit. Constitution: A non-contact type buffer unit is constructed with a stationary electromagnetic coil, a cable for the stationary coil, a movable electromagnetic coil, a spring cable for the movable coil, and a backup coil spring or the like. Force produced at scram time is delivered without impact by the attracting or repelling force between the stationary coil and the movable coil of the buffer unit. Accordingly, since the buffer unit is of a non-contact type, there is no mechanical impact and thus no large impact stress, and as it has simple configuration, the reliability is improved and the maintenance can be conducted more easily. (Yoshihara, H.)
Availability note (English)
Available from JAPATIC. Also available from INPADOC.Additional details
Publishing Information
- Imprint Pagination
- 3 p.
- IPC:
- Int. Cl. G21C7/20; G21C7/14.
- IPC
- Int. Cl. G21C7/20; G21C7/14.
- Patent number
- JP patent document 56-2592/A/
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 13708767
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- CONTROL ROD DRIVES; IMPACT SHOCK; LMFBR TYPE REACTORS; MAGNET COILS; PERFORMANCE; REACTOR CONTROL SYSTEMS; SCRAM; SCRAM RODS; SHOCK ABSORBERS
- Descriptors DEC
- BREEDER REACTORS; CONTROL ELEMENTS; CONTROL SYSTEMS; ELECTRIC COILS; ELECTRICAL EQUIPMENT; EPITHERMAL REACTORS; FAST REACTORS; FBR TYPE REACTORS; LIQUID METAL COOLED REACTORS; REACTOR COMPONENTS; REACTOR SHUTDOWN; REACTORS