压水堆核电机组一回路抽真空排气技术

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Vaccum Degas Technology for Primary Loops of Pressurized Water Reactor

1. China Nuclear Power Engineering Co., Ltd., Shenzhen, 518124, China;
2. Nuclear and Radiation Safety Center of the Ministry of Environmental Protection, Beijing, 100082, China

摘要: 压水堆核电机组一回路在调试启动期间,一回路系统充水时需要排气,与传统的排气方法相比,采用一回路抽真空排气技术不仅可以缩短试验工期,还能大大降低主泵首次启动时的风险。一回路抽真空排气技术在国内中国改进型百万千瓦级压水堆(CPR1000)机组调试启动中应用广泛,经过多次试验和不断改进,该技术已经成熟。本文对一回路抽真空排气技术进行了介绍。
- 一回路抽真空排气 /
- 抽真空排气装置 /
- 主泵轴封平衡
Abstract: At the start-up stage of pressurized water reactor（PWR）nuclear power station,the primary loops shall be degasified. Compared with the traditional degas method, the primary loops vacuum degas technology can not only shorten the test time, also greatly reduce the risk of the primary pump at the first starting. Technology of the primary loop vacuum degas is widely used in starting-up of the CPR1000 unit, after many tests and continuous improvement, this technology has been well established. Technology of the primary loops vacuum degas technology is introduced in this paper.
- Primary loop vacuum degas /
- Vacuum degas device /
- Seal balance of primary pump