核电厂氢气点火器研制

Development of Hydrogen Igniter for Nuclear Power Plants

核电厂氢气点火器是用于第三代核电站安全壳氢气控制系统的消氢专用设备之一,目的是及时消除严重事故后安全壳内产生的氢气,避免氢气聚集而产生爆炸。根据第三代核电站氢气点火器的技术指标及使用要求,研发制造了一种螺旋线圈型的氢气点火器样机,并对其表面温度、升温速度、功率、启停次数及持续工作时间等性能进行了试验。结果表明:研制的氢气点火器3分钟内表面温度达到930℃以上,功率小于145 W,启停次数大于等于360次,持续工作时间大于等于72小时,不仅满足研发技术指标要求和使用要求,并通过技术性能方面的创新实现了技术参数上的提升。

Hydrogen igniter for nuclear power plants is one of the special hydrogen–remove devices.It is used to removing hydrogen after a severe accident,avoiding hydrogen detonations because of buildup.According to the technical parameters and using requirement of hydrogen igniter,a helix hydrogen igniter prototype is designed and manufactured.By the test,the temperature and heating rate,the power,the start-stop times and the working duration of hydrogen igniter is verified.The results show that,the hydrogen igniter developed satisfies the technical parameters and using requirement,and achieves upgrade of technical parameters by technical operational innovation.