
第30卷第1期 2010年3月
核科学与工程
Chinese Journal of Nuclear Science and Engineering
Vol.30No.1
Mar.
核用脉冲射流取样器的实验研究
高明媛,徐聪,景山
(清华大学核能与新能源技术研究院,北京102201)
2010
摘要:实验研究了脉冲射流取样器对水和模拟泥案的取样效果。实验发现,脉冲射流取样器存在着压冲喷射和真空逆流两种取样模式。取样器对水取样的实验结果表明:取样针直径和取样T型节截面面积的增加,会使取样率有大幅提高;压冲压力和活塞桶高液位对取样量的影响与结构因素相比较小;在实验范需内单次取样量和取样率最大值分别为107mL和7.8%。针对质量分数最大为35%的模拟泥浆,脉冲射流取样器仍可正常工作,且取样重复性高。
关键词:射流取样器;取样T型节;取样率;可逆流体换向装置
中图分类号:TL81
文献标识码:A
文章编号:0258-0918(2010)01-0083-08
Experimentalstudyonpulsedfluidicsampler
GAOMing-yuan,XUCong,JINGShan
(Institute of Nuclear and New Energy Technology, Tsinghus University, Beijing 102201, China)
Abstract: The effect of pulsed fluidic sampler on water and simulated sludge was experi-mentally studied. There are two sampling ways such as press-ejecting and vacuum-re flux.The experimental results on water show that: the sampling rate increases substan tially with the diameters of the sample needle and the T-section; the effect of the press-ing-pressure of RFD pump and the higher level of piston barrel is not as much as the effect of structural parameters.The maximum numbers of sample volume and sampling rate are 107 ml and 7. 8% in the experiment, The sampler could get samples of simula-
ted sludge of less than 35% of mass fraction, and shows good repeatability. Key words:fluidic sampler; T-section; sampling rate; RFD
在乏燃料后处理过程中会产生一定量的放射性废液,如高放废液,以及液固混合物,如高放废液长期贮存后产生的高放泥浆。对这些放射性流体进行处理时,为了确定适宜的处理设
收稿日期:2009-01-14;修回日期:2009-06-06
备、操作条件,并保证操作的安全及处理后合乎要求,对被处理流体进行取样监测是必不可少的过程。在放射性环境中,核用取样器除需达到常规取样设备的要求外,还应尽量避免放射
作者简介:高明媛(1985一),女,北京人,硕士研究生,化学工程与技术专业
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