Vaccum Degas Technology for Primary Loops of Pressurized Water Reactor

Tan Haibo; Zhao Xin; Yang Sengai; Hui Longwei; Bai Xuan

doi:10.13832/j.jnpe.2014.03.0088

Volume 35 Issue 3

Feb. 2025

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Tan Haibo, Zhao Xin, Yang Sengai, Hui Longwei, Bai Xuan. Vaccum Degas Technology for Primary Loops of Pressurized Water Reactor[J]. Nuclear Power Engineering, 2014, 35(3): 88-91. doi: 10.13832/j.jnpe.2014.03.0088

Citation:

Tan Haibo, Zhao Xin, Yang Sengai, Hui Longwei, Bai Xuan. Vaccum Degas Technology for Primary Loops of Pressurized Water Reactor[J]. Nuclear Power Engineering, 2014, 35(3): 88-91. doi: 10.13832/j.jnpe.2014.03.0088

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Vaccum Degas Technology for Primary Loops of Pressurized Water Reactor

doi: 10.13832/j.jnpe.2014.03.0088

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

Received Date: 2013-04-23
Rev Recd Date: 2014-03-20

Available Online: 2025-02-15

Abstract

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