Rotary plug seal
Description
Purpose: To enable fuel exchange even upon failure of regular seals and also to enable safety seal exchange by the detection of the reduction in the contact pressure of a rotary plug seal. Constitution: If one of a pair of regular tube seals for the rotary plug is failed during ordinary operation of a FBR type reactor, the reduction in the contact pressure of the seal to the plug gibbousness is detected by a pressure gauge and a solenoid valve is thereby closed. Thus, a back-up-tube seal provided above or below the tube seal is press-contacted by way of argon gas to the gibbousness to enter into operation state and lubricants are supplied from an oil tank. In such a structure, the back-up-tube seal is operated before the failure of the tube seal to enable to continue the fuel exchange work, as well as safety exchange for the tube seal. (Moriyama, K.)
Availability note (English)
Available from JAPATIC. Also available from INPADOC.Additional details
Publishing Information
- Imprint Pagination
- 4 p.
- IPC:
- Int. Cl. G21C13/06.
- IPC
- Int. Cl. G21C13/06.
- Patent number
- JP patent document 56-19493/A/
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 13662096
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- ARGON; CLOSURES; FBR TYPE REACTORS; LUBRICATING OILS; SAFETY ENGINEERING; SEALS; VALVES
- Descriptors DEC
- BREEDER REACTORS; CONTROL EQUIPMENT; ELEMENTS; EPITHERMAL REACTORS; FAST REACTORS; FLOW REGULATORS; LUBRICANTS; NONMETALS; PETROLEUM PRODUCTS; RARE GASES; REACTORS