HTR-PM工艺及出水辐射监测系统设计

HTR-PM process and design of effluent radiation monitoring system

设计了高温气冷堆工艺及出水辐射监测系统,主要包括有关工艺系统、某些重要区域以及气体和液体流出物的多个监测通道。由于高温气冷堆工艺(HTR-PM)的冷却剂为氦气,燃料元件采用三结构各向同性(TRISO)包覆的球形燃料元件,其源项与压水堆不同。监测气体或液体形式的裂变或活化产物,还对一回路中的放射性粉尘进行取样分析。氚(H-3)和碳-14(C-14)是重点考虑因素,将在一回路、某些重要区域、二回路和烟囱中的气体流出物中取样。介绍了高温气冷堆工艺及出水辐射监测系统的设计特点,并与压水堆工艺及出水辐射监测系统进行了比较。

The high temperature gas cooled reactor process and effluent radiation monitoring system is designed,which mainly includes several monitoring channels for relevant process systems,some important areas and gas and liquid effluents.Since the coolant of the high temperature gas cooled reactor(HTR-PM) process is helium,the fuel element is a spherical fuel element coated with three isotropic structures(TRISO),and its source term is different from that of the pressurized water reactor.Monitor fission or activation products in the form of gas or liquid,and also sample and analyze radioactive dust in the primary circuit.Tritium(H-3) and carbon-14(C-14) are key considerations and will be sampled from the gas effluents in the primary circuit,some important areas,the secondary circuit and the chimney.The design features of HTGR process and effluent radiation monitoring system are introduced and compared with PWR process and effluent radiation monitoring system.