Device for measuring parameters in the core of a nuclear reactor in operation
US4986954A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 6, 1989 |
| Grant date | Jan 22, 1991 |
| Priority date | — |
| Expiry date | Jun 6, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The device comprises a measurement conduit (10) mounted movably in a guide tube connecting the reactor vessel to an instrumentation room which the measurement conduit (10) enters by passing through a sealing nozzle (25). The measurement conduit encloses peripheral sheaths (14) fastened around a central sheath (13). Measuring probes are fastened to the end of cables (16) and mounted movably, each inside a leakproof peripheral sheath (14). The nozzle (25) comprises a leakproof chamber (40). At their ends, each of the peripheral sheaths (14) of the conduit (10) comprises a leakproof passage (50, 50') for the sliding exit of the measurement cable (16) into the chamber (40). Leakproof passge devices (52) for each of the cables (16) are also placed in an exit wall (42) of the chamber (40) of the nozzle (25).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.