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MJH20A型实验室纤维混合器
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作者 刘军民 李贵海 《中国棉花加工》 1992年第1期37-38,共2页
关键词 MJH20A型实验室纤维混合器 纤维 结构 工作原理 物理性能测试 性能
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压裂液纤维混配装置关键技术及试验研究 被引量:1
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作者 白明伟 王云海 《石油和化工设备》 CAS 2019年第12期9-13,共5页
纤维加砂压裂作业时,需用专用装置将纤维注入压裂液并混配均匀,本文调研了压裂液纤维混配装置研制现状,在理论及经验公式的基础上,建立了纤维液混配装置设计分析方法及模型,利用螺旋输送机和混合器的结构原理,能够在纤维进入混合罐之前... 纤维加砂压裂作业时,需用专用装置将纤维注入压裂液并混配均匀,本文调研了压裂液纤维混配装置研制现状,在理论及经验公式的基础上,建立了纤维液混配装置设计分析方法及模型,利用螺旋输送机和混合器的结构原理,能够在纤维进入混合罐之前实现纤维与压裂液的混配。通过试验发现,混配时排出压力应控制在0.4MPa以上,尽量缩小喷嘴直径,产生较大的冲击混配能量,混配效果佳。同时小喷嘴比大喷嘴具有更强的抽吸能力,纤维输送量与输送机的转速呈线性函数关系。 展开更多
关键词 纤维压裂液 水力压裂 螺旋式输送机 纤维混合器 试验研究
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浅谈棉花检验工作中的取样问题
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作者 吴从通 《中国纤检》 1994年第4期12-13,共2页
一.棉花为什么必须取样检验 检验产品质量最好逐个检验,这样获得的统计资料最真实、最全面、也最有价值的。但是逐个检验要化费大量的人力物力,有的甚至是不可能办到的。
关键词 棉花检验 放回抽样 取样检验 纤维混合器 纤维长度 产品质量 统计资料 实验室样品 试验样品 检验对象
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Modeling of a SrCe_(0.95)Yb_(0.05)O_3-αHollow Fibre Membrane Reactor for Methane Coupling 被引量:2
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作者 谭小耀 杨乃涛 K.Li 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2003年第3期289-296,共8页
Proton-hole mixed conductor, SrCeo.95Yb0.05O3-α(SCYb), has the potential to be used as a membrane for dehydrogenation reactions such as methane coupling due to its high C2-selectivity and its simplicity for fabricati... Proton-hole mixed conductor, SrCeo.95Yb0.05O3-α(SCYb), has the potential to be used as a membrane for dehydrogenation reactions such as methane coupling due to its high C2-selectivity and its simplicity for fabricating reactor systems. In addition, the mixed conducting membrane in the hollow fibre geometry is capable of providing high surface area per unit volume. In this study, mechanism of methane coupling reaction on the SCYb membrane was proposed and the kinetic parameters were obtained by regression of experimental data. A mathematical model describing the methane coupling in the SCYb hollow fibre membrane reactor was also developed. With this mathematical model, various operating conditions such as the operation mode, operation pressure and feed concentrations affecting performance of the reactor were investigated. The simulation results show that the cocurrent flow in the reactor exhibits higher conversion of methane and higher yield of ethylene compared to the countercurrent flow. In order to achieve the highest C2 yield, especially of ethylene, pure methane should be used as feed and the operating pressure be 300 kPa. Air can be used as the source of oxygen for the reaction and its optimum feed velocity is twice of the methane feed velocity. The air pressure in the lumen side should be kept the same as or slightly lower than the pressure of shell side. 展开更多
关键词 hollow fibre membrane mixed conductor methane coupling
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