Method of repositioning annular spacers in calandria structures

Details Method of repositioning annular spacers in calandria structures Method of repositioning annular spacers in calandria structures

1984-03-22

1986-09-23

Cangialosi, Salvatore

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

Position detection

376260, 376366, 310166, G21C 1700, G21C 1900

Patent

active

046134778

ABSTRACT:
The invention provides an electromagnetic technique for repositioning garter springs, located between the coolant tubes and calandria tubes of fluid cooled nuclear reactors in which the garter springs are not directly accessible by mechanical means. An electromagnetic coil is advanced along the selected fuel channel to a position adjacent the garter spring, and a current pulse is passed through the coil thereby to exert an electromagnetic repulsive force on the garter spring having a component in the direction of the required displacement.

REFERENCES:
patent: 3718829 (1973-02-01), Wilson
patent: 3735162 (1973-05-01), Alth

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