Airborne radioactivity control method and system for control area cabin of water surface nuclear power ship

The invention provides an airborne radioactivity control method and system for control area cabins of a water surface nuclear power ship, and the method comprises the steps: setting gradient negative pressure in the control area cabins, such as a reactor cabin containment, an auxiliary cabin, an access control pollution monitoring and decontamination cabin, an access channel cabin and the like of the nuclear power ship through an exhaust fan, a negative pressure compressor and other facilities; according to the method, the range of the airborne radioactivity in the cabin of the control area can be well limited, the airborne radioactivity is prevented from diffusing and leaking to other cabins, and a powerful guarantee is provided for radiation safety of personnel on a nuclear power ship. 本发明提出一种水面核动力船舶控制区舱室气载放射性控制方法及系统，利用排风机、负压压缩机等设施在核动力船舶堆舱安全壳、辅舱、出入管控污染监测及洗消舱室、出入通道舱室等控制区舱室设置梯度负压，形成对核动力装置在正常运行期间产生的气载放射性进行控制的方案，本发明能较好的限制控制区舱室气载放射性的范围，防止气载放射性向其他舱室扩散和泄漏，为核动力船舶上的人员辐射安全提供有力保障。