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首页> 外文期刊>Plasma and Fusion Research >Observations of the Gas Stream from the Large Helical Device for the Design of an Exhaust Detritiation System
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Observations of the Gas Stream from the Large Helical Device for the Design of an Exhaust Detritiation System

机译：大型螺旋装置用于设计排气净化系统的气流观察。

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A small amount of tritium is produced by deuterium-deuterium reactions in the core plasma during deuterium plasma experiments conducted in the Large Helical Device (LHD). From the viewpoints of tritium safety handling and public acceptance, any waste gas streams arising from the vacuum vessel of the LHD and Neutral Beam Injection (NBI) system will be treated by an exhaust detritiation system (EDS). The exhaust gas stream produced during the 18th cycle of LHD plasma experiments was observed to design the EDS. The rough pumping gas streams from the LHD and NBIs produced a high flow rate of 300 Nm3/h. The vacuum exhaust gas stream from the LHD had a high hydrogen concentration more than 7% and a flow rate of less than 5 Nm3/h during plasma experiments. The regeneration gas stream of the cryopump systems had a flow rate of more than 5 Nm3/h. Based on these observations, the proposed EDS utilizes two types of tritium recovery system. One comprises two types of catalyst and dual absorbent beds. Other comprises an oxidation catalyst and polymer membrane system.
机译：在大型螺旋装置（LHD）中进行的氘等离子体实验中，核心等离子体中的氘-氘反应会生成少量small。从of安全处理和公众接受的角度来看，LHD和中性束注入（NBI）系统的真空容器中产生的任何废气流都将通过废气净化系统（EDS）进行处理。观察到在LHD等离子实验的第18个循环中产生的废气流设计了EDS。 LHD和NBI产生的粗糙的抽运气流产生了300 Nm 3 / h的高流速。在等离子体实验中，来自左座驾驶室的真空排气流具有高的氢浓度（大于7％）和小于5 Nm 3 / h的流量。低温泵系统的再生气流的流量大于5 Nm 3 / h。基于这些观察结果，拟议的EDS利用了两种类型的of回收系统。一种包括两种催化剂床和双重吸收床。其他包括氧化催化剂和聚合物膜系统。

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