Control rod drive mechanism (CRDM) mounting system for pressurized water reactors
US9805832B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2012 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Jan 19, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49169
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A standoff supporting a control rod drive mechanism (CRDM) in a nuclear reactor is connected to a distribution plate which provides electrical power and hydraulics. The standoff has connectors that require no action to effectuate the electrical connection to the distribution plate other than placement of the standoff onto the distribution plate. This facilitates replacement of the CRDM. In addition to the connectors, the standoff has alignment features to ensure the CRDM is connected in the correct orientation. After placement, the standoff may be secured to the distribution plate by bolts or other fasteners. The distribution plate may be a single plate that contains the electrical and hydraulic lines and also is strong enough to provide support to the CRDMs or may comprise a stack of two or more plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.