METHOD AND SYSTEM FOR REGULATING OXYGEN AND HYDROGEN CONCENTRATION IN A REACTOR PLANT AND NUCLEAR REACTOR PLANT

摘要

1. The method of controlling the concentration of oxygen and / or hydrogen in the coolant of a reactor installation, comprising a reactor, a coolant located in the reactor, a gas system having an outlet into the reactor in a volume near the coolant, a mass transfer apparatus installed in the coolant containing solid-phase coolant oxides and made with the possibility of flowing through it of the coolant, a device for introducing gas into the coolant, installed partially in the coolant and partially in the volume near the coolant and made with the possibility of supplying gas from the volume near the coolant to the coolant, and an oxygen concentration sensor in the coolant, the method comprising the following steps: - evaluate the oxygen concentration in the coolant based on data from the oxygen concentration sensor in the coolant; - compare the estimate of the oxygen concentration in the coolant with the upper and lower permissible values; - if the estimate of the oxygen concentration in the coolant is greater than the upper permissible value, check if the mass transfer apparatus is activated and / or deactivate it and / or signal that it needs to be deactivated, and a gas containing hydrogen is supplied to the reactor near the coolant from the gas system and / or the device for introducing gas into the coolant is activated; - if the estimate of the oxygen concentration in the coolant is less of the lower permissible value, check whether the device for introducing gas into the coolant is deactivated and / or if the supply of gas containing hydrogen to the volume near the coolant is stopped and / or the device for introducing gas into the coolant and / or Seek feed in about