HEAT EXCHANGER LEAKAGE MONITORING SYSTEM OF PASSIVE HEAT REMOVAL SYSTEM BY HUMIDITY METHOD Russian patent published in 2020 - IPC G21C17/00 G01M3/04 

FIELD: power engineering.

SUBSTANCE: invention relates to nuclear power engineering. System for control of leakage of heat-exchanger of passive heat removal by humid method includes air bleeder and transfer device made in the form of branch pipe with diaphragm. Proposed system comprises air humidity measurement device including first air humidity sensor arranged inside said branch pipe and information device connected therewith by communication lines. As the controlled volume the air bleeder and air transportation device uses the volume of air enclosed under the heat exchanger casing. Device for measuring air humidity additionally includes a second air humidity sensor placed in an air intake room communicated with the heat exchanger casing, and a signal processing unit placed in the heat exchanger room. Output of each air humidity sensor by means of corresponding analogue communication line is connected to input of signal processing unit. Output of the signal processing unit is connected to an information device by means of a digital communication line. Branch pipe with diaphragm and first sensor.

EFFECT: invention increases sensitivity.

1 cl, 1 dwg