System for cooling reactor core, filling water in reactor cavity and guiding out heat of containment

堆芯冷却、堆腔充水及安全壳热量导出的系统

Abstract

The utility model relates to a system for cooling a reactor core, filling water in a reactor cavity and guiding out heat of a containment, comprising a containment, a reactor cavity arranged in the containment, a pressure container connected with a main cooling channel mounted in the reactor cavity, an in-pile cooling system mounted in the containment and a containment heat guiding out and spraying system for guiding out the heat of the containment. When an accident exists in a nuclear power plant, the system can process a bidirectional cooling of firstly in the reactor and then outside the reactor to the reactor core and the reactor cavity; the containment heat guiding out and spraying system can guide out the heat from the reactor core and the space of the containment, so as to ensure the integrity of the reactor core fuel and the pressure maintaining container, and ensure that the pressure in the containment does not exceed the determined value.
本实用新型涉及一种堆芯冷却、堆腔充水和安全壳热量导出的系统,包括安全壳、设置在安全壳内的反应堆堆腔、安装在反应堆堆腔内连接有主冷却管道的压力容器、设置在安全壳内的堆内冷却系统、以及导出安全壳内的热量的安全壳热量导出与喷淋系统。在核电站发生事故时,能够利用该系统对反应堆堆芯和堆腔进行先堆内后堆外双向冷却,并通过安全壳热量导出和喷淋系统将来自堆芯和安全壳内空间的热量及时导出,从而可以确堆芯燃料和保压力容器的完整性性,并确保安全壳内的压力不超过设计值。

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