FLUID TIGHT ELECTRO-MAGNET, ESPECIALLY FOR THE CONTROL ROD DRIVE IN SWIMMING POOL REACTORS

Patent · Mon Sep 26 04:00:00 EDT 1960

OSTI ID:4793616

In swimming pool reactors it is usual to couple the control rod with its drive means via an electromagnet, so that upon breaking of the feeding current of the electromagnet, the control rod is released and falls down into the reactor core. Generally it is necessary to provide a system for the indication of the state of coupling or decoupling of the rod. Coupling means are described that comprise a fluid-tight vertical cylindrical casing suspended by the drive means, and an electromagnet having a pot-shaped core open at the bottom and movable between an upper and a lower position. If the lower face of the casing touches the lifting head of the rod and if the electromagnet is energized, the core moves downward against the action of a spring, into its lower position, so that the magnetic field lines may be closed via the lifting head so that the rod is coupled. Upon de-energizing of the electromagnet, the spring moves the magnet into its upper position. The movement of the electromagnet controls a micro- switch interconnected in the circuit of the indication system. (NPO)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-028484
• OSTI ID: 4793616
• Report Number(s): FR 1244959
• Country of Publication: France
• Language: English

Related Subjects

CIRCUITS
CONTROL ELEMENTS
CONTROL SYSTEMS
CURRENTS
CYLINDERS
ELECTRICITY
MAGNETIC FIELDS
MAGNETS
PATENT
REACTOR TECHNOLOGY
REACTORS
RESEARCH REACTORS
SHUTDOWN
SIGNALS
SWIMMING POOL
WATER COOLANT
WATER MODERATOR