| 华龙一号“177堆芯”特点分析 |
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| 引用本文： | 李冬生.华龙一号“177堆芯”特点分析[J].核动力工程,2022,43(3):28-32. |
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| 作者姓名： | 李冬生 |
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| 作者单位： | 中广核研究院有限公司，广东深圳，518028 |
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| 摘 要： | 华龙一号（HPR1000）压水堆核电厂最显著的技术特征是反应堆采用由177个燃料组件构成的堆芯（简称“177堆芯”），具有完全的自主知识产权。为深入分析其特点，本文介绍了“177堆芯”的主要技术特征，并在燃料组件及控制棒组件数目方面与157个燃料组件构成的堆芯（简称“157堆芯”）进行了对比分析；对2种典型反应堆堆芯（“177-A堆芯”与“177-B堆芯”）装载方案的异同进行了叙述和评价。结果表明，与“157堆芯”相比，“177堆芯”在安全性和经济性方面更有优势；2种典型堆芯的首循环装载布置各有所长，在可燃毒物选材上，“177-B堆芯”优于“177-A堆芯”。最后，从取消堆芯中央位置控制棒组件、设置堆芯径向金属反射层、实施无中子源启动、分批装载自主化燃料组件以及优化堆芯活性段长度等5个方面给出了HPR1000反应堆堆芯的优化建议。
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| 关 键 词： | 华龙一号（HPR1000） 反应堆堆芯 燃料组件 控制棒组件 可燃毒物 |
| 收稿时间： | 2021-04-13 |
Characteristic Analyses of “177 Core” of HPR1000 |
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| Affiliation: | China Nuclear Power Technology Research Institute Co., Ltd., Shenzhen, Guangdong, 518028, China |
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| Abstract: | The most remarkable technical feature of HPR1000 PWR nuclear power plant is that the reactor adopts a core composed of 177 fuel assemblies (hereinafter referred to as “177 core”), which has complete independent intellectual property right. In order to deeply analyze its characteristics, this paper introduces the main technical features of “177 core”, the number of fuel assemblies and control rod assemblies is compared with the core composed of 157 fuel assemblies (hereinafter referred to as “157 core”); the similarities and differences between two typical reactor core loading schemes (“177-A core” and “177-B core”) are described and evaluated. The results show that “177 core” has more advantages in safety and economy compared with “157 core”; the first cycle loading arrangements of the two typical cores have their own advantages; in terms of burnable poison material selection, “177-B core” is better than “177-A core”. Finally, possible optimization suggestions for the HPR1000 reactor core in the future are given from five aspects, such as canceling the central position control rod assembly of the core, setting the radial metal reflector of the core, implementing no neutron source startup, loading self-developed fuel assemblies in batches and optimizing the length of the active core. |
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