IMPROVEMENTS RELATING TO CONTROL SYSTEMS FOR NUCLEAR REACTORS

Patent · Mon Jan 30 04:00:00 EST 1961

OSTI ID:4799292

To prevent a too high number of access holes passing through the reactor pressure vessel wall, a hollow control rod and a safety element can move inside the same reactor channel. The hollow control rod is coupled with a tube threaded outside and engaging in a female screw, the rotation of which induces the axial movement of the control rod. This threaded tube slides on a guiding tube in which the safety element may be displaced. This safety element is flxed to a piston sliding in the guiding tube and is composed of a series of chain- links each enclosed by a neutron absorbing cylinder. In case of emergency the safety element is blown by gas pressure into the reactor core. (NPO)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-034024
• OSTI ID: 4799292
• Report Number(s): FR 1255862
• Country of Publication: France
• Language: English

Related Subjects

ABSORPTION
BARRIERS
CONFIGURATION
CONTROL ELEMENTS
CONTROL SYSTEMS
GASES
MACHINE PARTS
MOTION
NEUTRONS
PATENT
PRESSURE
PRESSURE VESSELS
REACTOR TECHNOLOGY
REACTORS
ROTATION
SHUTDOWN
TUBES