NUCLEAR REACTOR CONTROL ELEMENT DRIVE Russian patent published in 2024 - IPC G21D1/00 G21C17/00 G21C7/12 

FIELD: nuclear power engineering.

SUBSTANCE: invention relates to a nuclear power plant with carrier vessel reactors and relates to alignment of a position sensor relative to a drive rod. At this centering the preventive repair time is reduced and dose costs are reduced. In a nuclear reactor control element drive, comprising a position sensor, a movement unit, a rod, telescopic centering device is proposed to be installed on movement unit. Telescopic centering device after providing the centering of the rod together with the position sensor is telescopically retracted along the movement unit along the guide groove. To retain the telescopic centering device and prevent its fall, a fixing element is used, which fixes the pipe on the movement unit by the guide groove. To control the alignment of the position sensor on the rod, holes are made in the pipe. To fix the telescopic centering device at a certain distance, to prevent the tip of the position sensor from coming out of the centering device and to create a force, elastic elements are used.

EFFECT: providing remote centering of position sensor in rod of control element drive during assembly of reactor.

4 cl, 2 dwg