MODULAR SYSTEM FOR CONTROLLING THERMODYNAMIC ACTIVITY OF OXYGEN IN HEAVY LIQUID METAL COOLANT OF NUCLEAR REACTOR

摘要

FIELD: physics.;SUBSTANCE: invention relates system for controlling thermodynamic activity of oxygen in heavy liquid metal coolant of nuclear reactor. System contains a measuring unit and oxygen thermodynamic activity sensors installed in the periphery of the nuclear reactor and equipped with sensitive elements and a thermoelectric converter constantly placed under the heat carrier level. Measuring unit is a group of identical measurement channels, the number of which corresponds to the number of sensors. Measuring channel includes industrial computer, analogue-to-digital converters, outputs of which are connected to industrial computer, and inputs are connected to sensitive elements and thermoelectric transducer of oxygen thermodynamic activity sensor, a device for transmitting digital data, the input of which is connected to an industrial computer, and the output is intended for connection to a digital data network, and digital-to-analogue converters, which inputs are connected to industrial computer and which outputs are intended for connection with analogue data network. Oxygen thermodynamic activity sensor is a composite element of the measuring channel.;EFFECT: technical result is higher reliability of the system and reliability of obtained data when controlling thermodynamic activity of oxygen in heavy liquid metal coolant of nuclear reactor, as well as flexibility of control system of thermodynamic activity of oxygen in heavy liquid metal coolant of nuclear reactor.;1 cl, 1 dwg