摘要
研究了高温气冷堆（HTGR）蒸汽发生器事故排放过程的动态特性。把事故排放过程分为水排放和蒸汽排放两个阶段，对两个阶段分别建立了集总参数模型。在典型事故排放工况下，计算了蒸汽发生器排放温度、排放压力、排放比焓和排放流量随时间的变化。计算结果表明，事故排放系统可在6．175s内将HTGR蒸汽发生器二回路压力降低到一回路的压力水平，在事故排放结束时，蒸汽发生器仍然处于水排放阶段。计算得到的蒸汽发生器排放比焓和排放流量随时间变化的曲线为今后事故排放系统的排放罐内流动和传热的数值模拟提供了输入条件。
The dynamic behavior of the emergency relief process of the high temperature gas-cooled reactor （HTGR） steam generator was investigated. The emergency relief process was divided into a water relief stage and a steam re- lief stage, and two lumped parameter models were developed for the two stages. In a typical emergency relief condi- tion, the variations of the discharge temperature, the discharge pressure, the discharge specific enthalpy and the discharge flow rate with time of the steam generator were calculated. The results show that the emergency relief sys- tem can reduce the secondary loop pressure of the HTGR steam generator to the pressure of the primary loop within 6. 175 seconds, and the HTGR steam generator remains in the water relief stage at end of discharge process. The calculated time variations curves of discharge specific enthalpy and discharge flow rate of the steam generator can be used as input conditions for future numerical simulation of the heat transfer and fluid flow inside the relief tank of an emergency relief system.
出处
《高技术通讯》
CAS
CSCD
北大核心
2012年第3期305-308,共4页
Chinese High Technology Letters
基金
国家科技重大专项资助项目.
关键词
高温气冷堆(HTGR)
蒸汽发生器
事故排放过程
集总参数模型
high temperature gas-cooled reactor （HTGR）, steam generator, emergency relief process, lumped parameter model
