Pressurized water reactor nuclear power station primary loop hydrogen removal method

• Main Authors: ZHANG JIANNIAN, YU JINFENG, WANG XIN, WANG YUZHOU, YANG SEN, QU TIANZUO, QUE LIANGSHENG, MA WENQI, WU DIANWEN, ZUO CHANGDI, SHEN SONG
• Format: Patent
• Language: Chinese; English
• Published: 30.08.2022
• Subjects: NUCLEAR ENGINEERING; NUCLEAR PHYSICS; NUCLEAR REACTORS; PHYSICS

The invention provides a pressurized water reactor nuclear power station primary loop hydrogen removal method, which comprises the following steps of: controlling an exhaust hydrogen removal process of a pressure stabilizer and a hydrogen dissolving process in a primary loop coolant at the same time, so that the dissolved hydrogen of the primary loop after a gas cavity of the pressure stabilizer is extinguished is less than 5cc/kg, and the condition that the primary loop is communicated with the atmosphere is met. According to the hydrogen removal method, by determining the voltage stabilizer exhaust completion judgment standard and the voltage stabilizer gas extinguishing cavity precondition and determining the matched dissolved hydrogen control strategy in the shutdown primary loop coolant, it can be ensured that dissolved hydrogen in a primary loop system behind the voltage stabilizer gas extinguishing cavity is smaller than 5 cc/kg, the main line construction period of large and small repair shutdown is s