Fire protection system for sodium equipment rooms of BN reactors: operating experience and development trends

IF 0.4 4区工程技术 Q4 NUCLEAR SCIENCE & TECHNOLOGY

Atomic Energy Pub Date : 2025-03-05 DOI:10.1007/s10512-025-01180-5

I. A. Pakhomov, A. V. Vinogradov, A. A. Kamaev, Yu. Yu. Malko, N. G. Martyanova

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Abstract

The fire protection system of sodium equipment rooms ensures fire safety of fast neutron reactors by localizing and reducing the consequences of leaks and combustion of sodium during depressurization of equipment or pipelines of sodium systems. The present article describes the composition and operation of the fire protection system used at the BN-350 reactor plant. The efficiency of various subsystems and equipment of the fire protection system is considered as applied to the localization of sodium leaks occurred during the operation of the reactor plant. The performed experiments demonstrate the efficiency of drain fire extinguishing as the element of the fire protection system; requirements for drain fire extinguishing subsystems are provided. The article additionally presents data on the most significant sodium coolant leaks during the operation of the BN-350 reactor and considers trends in the development of fire protection systems for sodium equipment rooms of BN reactors. Technical solutions implemented in fire protection systems for the sodium coolant rooms of BN-600 and BN-800 next-generation reactors are examined based on the experience of using fire protection system elements.

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氮化硼反应器钠设备机房消防系统：运行经验及发展趋势

钠系统机房消防系统在钠系统设备或管道降压过程中，通过定位和减少钠泄漏和燃烧的后果，保证快中子反应堆的消防安全。本文介绍了BN-350反应堆厂房消防系统的组成和运行情况。应用于反应堆装置运行过程中钠泄漏的定位，考虑了消防系统各子系统和设备的效率。实验结果表明，排水灭火系统作为消防系统的组成部分是有效的；给出了排水灭火子系统的要求。本文还介绍了BN-350反应堆运行过程中最重要的钠冷却剂泄漏的数据，并考虑了BN反应堆钠设备机房消防系统的发展趋势。根据使用消防系统元件的经验，对BN-600和BN-800下一代反应堆钠冷却剂室消防系统实施的技术解决方案进行了研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Atomic Energy 工程技术-核科学技术

CiteScore

1.00

自引率

20.00%

发文量

100

审稿时长

4-8 weeks

期刊介绍： Atomic Energy publishes papers and review articles dealing with the latest developments in the peaceful uses of atomic energy. Topics include nuclear chemistry and physics, plasma physics, accelerator characteristics, reactor economics and engineering, applications of isotopes, and radiation monitoring and safety.