严重事故下氢气爆燃环境模拟试验  

Simulation Experiments of Hydrogen Deflagration Environments for Severe Accidents

作　　者：姜韶堃 赵罗生 杨志义 詹惠安 陶志勇 赵宁 丁超 Jiang Shaokun;Zhao Luosheng;Yang Zhiyi;Zhan Huian;Tao Zhiyong;Zhao Ning;Ding Chao(The 718th Research Institute of CSIC,Handan 056027,China;Nuclear and Radiation Safety Center,MEE,Beijing 100082,China)

机构地区：[1]中国船舶集团有限公司第七一八研究所,邯郸056027 [2]生态环境部核与辐射安全中心,北京100082

出　　处：《核安全》2020年第6期50-53,共4页Nuclear Safety

摘　　要：核电厂发生严重事故后,氢气迅速释放,在安全壳空间内快速累积,与安全壳内的空气形成爆燃混合物。当氢气浓度超过某一阈值时,安全壳内可能发生氢气爆燃。氢气爆燃会导致安全壳内温度和压力瞬间升高,从而对安全壳内设备造成威胁。针对严重事故氢气爆燃过程,中国船舶集团有限公司第七一八研究所设计搭建了用于模拟氢气爆燃环境的试验平台,建立了氢气爆燃试验方法,通过试验研究了氢气浓度与氢气爆燃温度之间的关系,找出了氢气爆燃过程中温度在空间和时间上的分布规律,为安全壳内设备可用性验证试验的开展奠定了基础。When a severe accident occurred in a nuclear power plant(NPP),hydrogen would release and accumulate immediately in the containment,and form flammable or explosive gas mixture with air in the containment.When hydrogen concentration was beyond a certain value,a hydrogen deflagration process might be occurred,which would lead to instantaneous rises of temperature and pressure in the containment.Then the functions of facilities in the containment would be threatened gravely.A test platform for the simulation of hydrogen deflagration environments has been designed and established by The 718 th Research Institute of CSIC,and the test method of making hydrogen deflagration has been created.Experiments have been done to obtain the relation between hydrogen concentration and the transient temperature and the temperature distribution in space and with time during hydrogen deflagration processes,which laid a foundation for the availability validation of facilities in the containment.

关 键 词：核电厂 严重事故 氢气爆燃 

分 类 号：X946[环境科学与工程—安全科学]