DEVICE FOR ULTRASONIC TEST OF WELDS IN FUEL ELEMENTS OF AUTOMATIC TRANSFER LINE Russian patent published in 2002 - IPC

FIELD: atomic power industry, manufacture and test of fuel elements. SUBSTANCE: given device includes transportation table- storage, sensor " presence of fuel element for water-moderated water-cooled nuclear reactor VVER-1000 on transportation table-storage ", transportation aid to move fuel element for test and remove it from test, unit gripping fuel element and turning it around its axis, drive of sensor " presence of fuel element in zone of test " in the form of rod of pneumatic cylinder, sensor " presence of fuel element in zone of test ", immersion bath, piezoelectric converter ( emitting and receiving ), control unit and sensor " presence of fuel element on position of loading unit ". Sensor " presence of fuel element for nuclear reactor VVER-440 on transportation table-storage " is installed on transportation table-storage at some distance from sensor " presence of fuel element for nuclear reactor VVER-1000 on transportation table-storage " equal to difference between fuel elements for nuclear reactors VVER-1000 and VVER-440. Device is fitted with electron commutation unit communicating with control unit and with both sensors " presence of fuel element on transportation table-storage ". Separable compensation insert with thickness equal to difference between heights of plugs of fuel elements for reactors VVER-1000 and VVER-440 is placed uniaxially to drive of sensor between wall of immersion bath and body of pneumatic cylinder. Rod-drive of sensor " presence of fuel element in zone of test " and piston of pneumatic cylinder come as screw pair. Sensor " presence of fuel element in zone of test " is mounted uniaxially to rod-drive of sensor " presence of fuel element in zone of test " in rear wall of pneumatic cylinder for movement. EFFECT: expanded technological capabilities of device. 2 cl, 4 dwg