核电厂蒸汽发生器传热管破裂叠加稳压器喷淋完全丧失的对策

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Strategy for Steam Generator Tube Rupture Accident with Total Loss of Pressurizer Spray

China Nuclear Power Technology Research Institute, Shenzhen, Guangdong, 518026, China

摘要: 使用CATHARE程序对典型工况下的蒸汽发生器传热管破裂(SGTR)事故叠加完全丧失稳压器喷淋后,针对采用和不采用稳压器卸压两种情况进行了分析,并对事故过程和后果进行了讨论;对传热管断裂的数目以及发生事故的初始功率工况进行了敏感性分析;对采用稳压器卸压可能带来的负面影响进行了评价。结果表明:对于完全丧失稳压器喷淋下的SGTR事故,采用稳压器卸压可以大幅减少向环境排放带有放射性污染的流体质量,同时其负面效应较小。
- 蒸汽发生器 /
- 传热管破裂事故 /
- 对策 /
- 稳压器喷淋 /
- 稳压器卸压
Abstract: Typical cases of SGTR accident under total loss of pressurizer spray with or without application of the strategy are analyzed using CATHARE code,and the accident scenario and results are discussed in detail.In addition some sensitivity study on number of ruptured tubes and initial power level are done and finally the possible negative effects are discussed.The analyses demonstrate that the strategy of pressurizer relief proposed by the document can significantly reduce the contaminated water and steam release to environment for SGTR accident under total loss of pressurizer spray,and the negative effect can be neglected.
- Steam generator /
- Tube rupture /
- Strategy /
- Pressurizer spray /
- Pressurizer relief