METHOD AND DEVICE FOR CONTINUOUS MONITORING OF PROCESS CHANNEL PIPE BEND Russian patent published in 2015 - IPC G21C17/17 

FIELD: measurement equipment.

SUBSTANCE: invention relates to device of one-time check and permanent monitoring of pipe bend of the process channel in the nuclear units which being operated at limited access. The device contains a flexible measuring pole (2). The pole consists of the sections (3) which are interconnected by couplings (4). The end face of the section (3) is made narrower and freely located in the interfaced section where it is connected with a binding body. The body is passed inside the pole and is connected with the motion sensor (7). The sensor is moved by the binding body (5). The sensor is zeroed before the monitoring. The pole is placed in the unloaded pipe (1). In case of change of intersection bend of the bar in the joint by the angle α the bend is forced into the linear shift Δ of the section end. The shift Δ is translated into the proportional shift of the sensor. After start of the reactor the further pipe bending is monitored.

EFFECT: technical result consist in improvement of sensitivity of the device to bending of a process channel and increase of informational content of the method of measurement at continuous monitoring.

10 cl, 3 dwg