Method for diagnosing abnormal oxygen index of condensed water in nuclear power plant

• Main Authors: ZHOU HONGYING, LI YUCHUN, TIAN JUN, YANG FAN, MI MENGXIN, ZHONG FENG, LIU XINFU, YU MIAO, HE YUWU, WANG WEI, LI MEI, WU ZHONGLIANG, XU ZHAOJIN, MA LEI
• Format: Patent
• Language: English
• Published: 25.03.2015
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; NUCLEAR ENGINEERING; NUCLEAR PHYSICS; NUCLEAR REACTORS; PHYSICS; TESTING

The invention relates to the technical field of nuclear power safety, particularly relates to the field of equipment running safety of the moisture index of a secondary circuit of a nuclear power plant, and specifically relates to the diagnosis for the abnormal sodium index of secondary circuit condensed water of the nuclear power plant. The method is characterized by comprising the following steps: 1, acquiring data of sodium and relevant indexes of condensed water in real time; 2, extracting data of sodium and relevant indexes of the condensed water by a system; 3, judging that whether the fault of the sodium index of the condensed water exists or not; 4, determining that whether the relevant index of sodium of the condensed water is abnormal or not and determining the abnormal level; and 5, analyzing equipment and reasons causing the abnormal sodium of a condenser. The diagnosis method provided by the invention achieves the function of fault decision making by operators, can be used for coordinating for multiple departments in the nuclear power plant to cooperatively deal with problems, can be used for guaranteeing the accurate positioning of fault position, fault reasons, treatment measures and department responsibilities, effectively reducing the nuclear power running risk, reducing the running cost, and improving the fault diagnosis accuracy and the running stability of the nuclear power plant.