DEVICE FOR CONTROLLING BENDING OF REACTOR FUEL CHANNELS Russian patent published in 2009 - IPC G01B5/20 G21C17/17 

FIELD: physics; nuclear physics.

SUBSTANCE: invention relates to use of channel-type nuclear reactors, particularly ADE-type reactors, and can be used for continuous control of bending of fuel channels. The device has a flexible rod-shaped element, assembled from bushings, which interacts with a sensor, fitted in the upper part of the fuel channel. The bushings are joined by fastening sleeves using pins with a gap between butt ends of the bushings. There is filling material in the upper part of the rod-shaped element. The bearing sleeve is made in form of a cup with a hole at the bottom.

EFFECT: design of a simple device, which enables continuous control of change in bending of fuel channels during transient processes and on the stationary level of the reactor power, providing for reliable additional control of the state of the graphite stack of the reactor, which increases safety of its operation.

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