深海孔隙水原位采样柱过滤性能试验
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摘要
在原位采样柱过滤系统的基础上,为检测过滤精度能否达到5μm,在确保过滤网层材质和结构分布达到要求的情况下,对过滤孔径分别为1.0,1.5和2.0 mm的采样柱进行了分组试验.试验结果表明:采样柱过滤孔径会直接影响储样室内孔隙水中沉积物粒径的大小,从而间接影响到孔隙水的澄清度.试验具有原创性和可重复性,经过5次试验后,可以将过滤孔径为1.0 mm的采样柱作为最佳的过滤设备,同时满足了过滤精度能够达到5μm的技术指标,从而为采样柱的设计提供了参考依据.
Based on the filtration system of sampling column,the filtering accuracy whether was up to 5 μm was detected. In order to ensure that the material and structure distribution of the filter layer meet all requirements,the experiments of sampling columns were conducted,which was respectively 1. 0,1. 5 and 2.0 mm of filter aperture. The experimental results show that the filter aperture of sampling column directly have an effect on the the size of the sediment particle in the sample chamber,which indirectly affects the clarity of pore water. The test is original and repeatable.After 5 trials,the sample size of 1 mm can be used as the best filtering equipment,which meet the technical specifications of the filter accuracy of 5 μm,which provides a reference for the design of the sampling column.
Based on the filtration system of sampling column,the filtering accuracy whether was up to 5 μm was detected. In order to ensure that the material and structure distribution of the filter layer meet all requirements,the experiments of sampling columns were conducted,which was respectively 1. 0,1. 5 and 2.0 mm of filter aperture. The experimental results show that the filter aperture of sampling column directly have an effect on the the size of the sediment particle in the sample chamber,which indirectly affects the clarity of pore water. The test is original and repeatable.After 5 trials,the sample size of 1 mm can be used as the best filtering equipment,which meet the technical specifications of the filter accuracy of 5 μm,which provides a reference for the design of the sampling column.
引文
[1]刘少军,陈毅章,李力,等.深海保真取样器研究及其虚拟样机实现[J].机械工程与自动化,2005(1):1-4.
[2]安莉,程烨,秦华伟,等.新型深水天然气水合物保真筒保压特性研究[J].海洋工程,2013,31(5):75-81.
[3]庄广胶,王彪,吴超,等.搭载于ROV的深海半自动沉积物保压取样器设计[J].舰船科学技术,2016,38(17):108-111.
[4]陈毅章,刘少军,李力,等.深海悬浮物过滤薄膜过流能力与压力损失研究[J].液压气动与密封,2005(1):17-19.
[5]杨涛,叶鸿,赖亦君.南海北部陆坡天然气水合物的沉积物孔隙水地球化学研究进展[J].海洋地质与第四纪地质,2017(5):48-58.
[6]Sansone F J,Spalding H L,Smith C M. Submersible-operated porewater sampler for permeable sediments[J]. Limnology&Oceanography Methods,2008,6(1):119-125.
[7]Schacht U,Wallmann K,Kutterolf S,et al. Volcanogenic sediment-seawater interactions and the geochemistry of pore waters[J].Chemical Geology,2008,249(3):321-338.
[8]张洪,温胜芳,单保庆,等.一种沉积物孔隙水的野外原位分层采集装置:中国,103105317A[P]. 2013-05-15.
[9]刘广虎,陈道华,杨灿军,等.深海分层气密水样采集系统的设计与应用[J].气象水文海洋仪器,2009,26(2):9-12.
[10]张洪,张文强,单保庆,等.一种便携式沉积物孔隙水快速抽滤装置:中国,103100253A[P].2016-05-09.
[2]安莉,程烨,秦华伟,等.新型深水天然气水合物保真筒保压特性研究[J].海洋工程,2013,31(5):75-81.
[3]庄广胶,王彪,吴超,等.搭载于ROV的深海半自动沉积物保压取样器设计[J].舰船科学技术,2016,38(17):108-111.
[4]陈毅章,刘少军,李力,等.深海悬浮物过滤薄膜过流能力与压力损失研究[J].液压气动与密封,2005(1):17-19.
[5]杨涛,叶鸿,赖亦君.南海北部陆坡天然气水合物的沉积物孔隙水地球化学研究进展[J].海洋地质与第四纪地质,2017(5):48-58.
[6]Sansone F J,Spalding H L,Smith C M. Submersible-operated porewater sampler for permeable sediments[J]. Limnology&Oceanography Methods,2008,6(1):119-125.
[7]Schacht U,Wallmann K,Kutterolf S,et al. Volcanogenic sediment-seawater interactions and the geochemistry of pore waters[J].Chemical Geology,2008,249(3):321-338.
[8]张洪,温胜芳,单保庆,等.一种沉积物孔隙水的野外原位分层采集装置:中国,103105317A[P]. 2013-05-15.
[9]刘广虎,陈道华,杨灿军,等.深海分层气密水样采集系统的设计与应用[J].气象水文海洋仪器,2009,26(2):9-12.
[10]张洪,张文强,单保庆,等.一种便携式沉积物孔隙水快速抽滤装置:中国,103100253A[P].2016-05-09.