MONITORING SYSTEM FOR LEAKAGE OF HEAT EXCHANGER OF PASSIVE HEAT REMOVAL SYSTEM BY ACOUSTIC METHOD Russian patent published in 2020 - IPC G21C17/22 G01M3/04 

FIELD: nuclear power engineering.

SUBSTANCE: leakage control system of passive heat removal heat exchanger by acoustic method includes waveguides, acoustic sensors connected by analogue communication lines with program-technical complex, which includes computing device, amplifiers, converters and power supply. Each waveguide passes through the corresponding sound-insulating insert in the heat exchanger casing. One end of each waveguide is located at the heat exchanger acoustic noise control point. Other end is connected to the sensitive element of the corresponding acoustic sensor, the amplifiers and converters are combined into a signal processing unit, each input of which is connected to the output of the corresponding acoustic sensor by means of an analogue communication line. Output of the signal processing unit is connected to the input of the computing device using a digital communication line. Power supply is connected to signal processing unit by means of power supply line.

EFFECT: invention increases sensitivity of system and reliability of its operation.

5 cl, 1 dwg