Continuous automatic control of ions fluoride concentration in technological waters of thermal and nuclear power plants

The reliability and trouble-free operation both thermal and nuclear power plants depend on the quality of water purification of the heat carrier. In nuclear power plants, the water fulfils three functions: heat carrier; neutron decelerator; and neutron absorbent. Therefore, exacting requirements are placed on the water heat carrier. In Russia, reactors of two types-water-water power reactor (WWPR) and high-power reactor boiling (HPRB) are applied. The process flow-sheet of a nuclear power plant with HPRB is single-flow; therefore very exacting requirements are placed on water heat carrier. The problem of cleaning and quality control of the heat carrier is very urgent and is discussed by the authors in this paper