The experiments of the resistance of Pall Ring, Stage Ring and Polyhedron Empty Ball were done and the packing layer's resistance coefficient was obtained from the experiments.
对鲍尔环、阶梯环和多面空心球三种填料的阻力进行了测试，得出了填料层的阻力系数。
Optimization of grain composition in the system of packing particle; 2. The relationship among the amplitude, the friction coefficient, grain composition and the porosity of block in different height is analyzed.
将散体简化为粒径不同的两种颗粒模型，利用颗粒离散元法模拟了砌块成型过程，分析了振幅、摩擦系数以及颗粒级配与砌块不同高度处孔隙度的关系，验证了双向振压成型方式可以明显减小砌块的孔隙度。
It is illustrated by the numerical simulation that the flow rates of liquid and gas as well as the inner diameter of the packing greatky influence the volumetric mass transfer coefficient at a specifc rorational speed.
计算分析表明，对超重力旋转床，在一定的转速下，液体和气体流量以及填料内径的变化对体积传质系数有重要影响。
The calculation of the cylinder closing force Off force analysis was the force of Where Qt --- packing friction, N Qj --- medium static pressure, N Qf --- stem cross-section of the media thrust, N Qm --- valve to be sealed when the sealing surface than the pressure force, N Qg --- closed cylinder output force, N Qk --- open cylinder output force, N qMF --- sealing surface must be specific pressure, MPa dm --- sealing surface mean diameter, mm df --- Stem diameter, mm f --- packing coefficient of friction bt --- filler width, mm P --- valve design pressure, MPa fm --- sealing surface friction coefficient To achieve an effective sealing valve must be Qg-Qf-Qt + Qj ≥ Qm That Qg ≥ Qf + Qt + Qm-Qj Closing force is not the bigger the better, must actually higher than check of the sealing surface pressure q, and make it less than the allowable pressure Where Qm'--- acting on the sealing surface of the actual seal edge, from the real thrust of the cylinder minus the associated resistance to draw, MPa, Through the above calculations to determine the off spring preload for the spring determine the basis for selection.
3.1、气缸关闭力的计算关闭状态受力分析得各力为式中Qt———填料摩擦力，N Qj———介质静压力，N Qf———阀杆截面的介质推力，N Qm———阀门达到必须密封比压时的密封面作用力，N Qg———气缸关闭时输出力，N Qk———气缸打开时输出力，N qMF———密封面必须比压，MPa dm———密封面平均直径，mm df———阀杆直径，mm f———填料摩擦系数 bt———填料宽度，mm P———阀门设计压力，MPa fm———密封面摩擦系数要实现阀门的有效密封，必须 Qg-Qf-Qt+Qj≥Qm 即 Qg≥Qf+Qt+Qm-Qj 关闭力也不是越大越好，还须校核密封面实际比压q，并使其小于许用比压式中Qm'———作用于密封面的实际密封力，由气缸实际推力减去相关阻力得出，MPa，通过以上计算可确定关闭状态的弹簧预紧力，为弹簧选型确定依据。
The equations of pressure drop and volumetric mass transfer coefficient of structured packing are presented based on experiment results.
根据实验结果，拟合了规整填料的压损和体积传质系数的关联式。
According to the experimental results, there was no obvious strong relationship between packing specific surface area and mass transfer coefficient. As to materials, ceramic packings had superior mass transfer efficiency. And probably because the shape of Raschig rings and saddle type might hinder liquid distribution, the mass transfer efficiency of spherical packings was higher than those of Raschig rings and saddle type. Besides, the kLa values for hydrophilic packings were generally higher by about 11%~43% than those of hydrophobic packings. Moreover, the mass transfer of wire mesh was better than that of blades and steel rings.
经由实验结果发现，填充物比表面积的大小与质传系数间并无明显正比关系；在材质方面，陶瓷材质填充物具有最佳的质传效果；在几何形状的部份，由於拉西环及矩鞍容易造成液体流动的死角，因此质传效果较圆珠为差；此外，亲水表面填充物质传效率优於疏水表面填充物，其质传系数可比填充疏水表面填充物高11%~43%；在 Structured packing部分，填充金属丝网的质传效果较叶片及钢圈为好。
The volume mass-transfer coefficient of packing I is about 60%, 40%, 30% higher than that of packing Ⅱ, Ⅲ, Ⅳ.
同时建立了体积传质系数模型，模型计算结果与实验结果拟合较好。
However, one of the major concerns in device performance is how to maintain long-term thermal and temporal NLO stability at elevated temperatures. In this research, a fluoro-containing organosoluble and high glass temperature (251 oC) polyimide consisting of side chain reactive groups was synthesized. The reactive hydroxyl groups provide the potentiality for further chemical incorporation. Herein, the hydroxyl groups were reacted with an isocyanate-containing chromophore (DO3-ISO) to form an NLO-active side chain polyimide (PIDO3). Due to the relaxation of side chain chromophores and loose packing order of main chain, the PIDO3 sample reveal poor thermal property (Tg = 165oC). In order to enhance thermal stability, the NLO-active polyimide/inorganic semi-interpenetrating polymer network was prepared to serve the purpose of restricting molecular movement via incorporating inorganic alkoxysilanes. With the inorganic content up to 50%, the Tg of PIPT could increase to 184 oC. On the country, the dye content of PIPT decreased to 13.6% and relatively lower electro-optical coefficient (r33, 5.2 pm/V) was obtained.
本研究先合成出一个高Tg (251 oC)有机可溶的聚亚醯胺，将含有-OH官能基的聚亚醯胺与含有-NCO官能基的发色团基反应，合成出典型的侧链型二次非线性光学材料(PIDO3)，此类型的材料具有容易配向成膜、低介电常数及良好的透光率等优点，但由於侧链悬挂发色团基的基团，导致高分子链段无法形成紧密的堆叠，因此材料的热性质呈现快速的下降(Tg = 165 oC)，为了解决热稳定性不足的问题，於是我们希望藉由无机材料的导入，藉此提升材料的热稳定性，首先实验利用无机矽氧烷Phenyltriethoxysilane 与侧链型二次非线性光学材料经由溶胶-凝胶反应形成半网状互穿型的高分子，当导入50 wt%的无机材料时，其Tg 提升至184 oC，但导入大量的无机成分，相对的降低了发色团基的比例(13.6 wt%)，因此光电系数值明显的下降(r33 = 5.2 pm/V)，造成热稳定性与光电性质无法兼得的窘境。
The experimental results show that the efficiency of catalytic exchange reaction is higher in random bed with a packing ratio of 1∶1 mixture of catalyst and hydrophilic or 1∶4 in order bed. The volume transfer coefficient increases with increasing temperature, but the trend is s...
结果表明：催化剂与填料混合填装时体积比 1∶1和分层有序填装时体积比 1∶4的效果最佳，总体积传质系数随反应温度升高而提高，交换反应温度以 60℃为宜
In this paper, the experimental set-up is described and experimental results of the height equivalent to a theoretical plate and the volumetric mass transfer coefficient of a rectifying section with the Sulzer BX packing are presented.
在本文，实验性设定被描述和高度等值的实验性结果到一个理论塔板和一个矫正的部分的容量传质系数与Sulzer BX包装提出。
This is because solid film is of better ordering, stronger intermolecular van der Waals force, and lower surface free energy contributing to decrease friction coefficient, while the molecule of more compact packing in the solid film helps to carry load.
其原因在于，与液体膜相比，固体膜的有序化程度高，可有效地降低底材的表面自由能；另一方面，固体膜中分子排列致密，有助于承载能力的提高。
Valve factory specifications Valves are devices in the factory manual should indicate the following data: the valve specifications; model; work pressure; manufacturing standards; valve body material; stem material; sealing material; valve shaft packing material; stem sleeve material; inside and outside the anti-corrosion material; Action start direction; rpm; public pressure situations headstock moment; factory factory name; factory date; serial number; weight; connecting flange diameter, pore number, the center pitch; with graphic images indicate overall length, width and height of the control size; valve flow resistance coefficient; effectively open and close times; valve factory testing data and installation, maintenance for attention.
阀门的出厂说明书阀门是设备，在出厂说明书中应标明以下相关数据：阀门规格；型号；工作压力；制造标准；阀体材质；阀杆材质；密封材质；阀轴填料材质；阀杆轴套材质；内外防腐材质；操作启动方向；转数；工压状况下启闭力矩；制造厂厂名；出厂日期；出厂编号；重量；连接法兰盘的孔径、孔数、中心孔距；以图示方式标明整体长、宽、高的控制尺寸；阀门流阻系数；有效启闭次数；阀门出厂检测的相关数据及安装、维护的注意事项等。
Valve manual valve is factory equipment should be marked in the factory manual the following data: valve size; model; pressure; manufacturing standards; body material; stem material; seal material; valve shaft packing material; Stem sleeve material; internal and external anti-corrosion material; operation start direction; rpm; work under pressure situation of open and close torque; manufacturing plant name; factory date; serial number; weight; connection flange diameter, number of holes, center hole distance; to graphic images indicate the overall length, width and height of the control size; valve flow resistance coefficient; effective opening and closing times; valve factory testing data and installation, maintenance precautions.
阀门的出厂说明书阀门是设备，在出厂说明书中应标明以下相关数据：阀门规格；型号；工作压力；制造标准；阀体材质；阀杆材质；密封材质；阀轴填料材质；阀杆轴套材质；内外防腐材质；操作启动方向；转数；工压状况下启闭力矩；制造厂厂名；出厂日期；出厂编号；重量；连接法兰盘的孔径、孔数、中心孔距；以图示方式标明整体长、宽、高的控制尺寸；阀门流阻系数；有效启闭次数；阀门出厂检测的相关数据及安装、维护的注意事项等。
Valve factory specifications Valves are devices shall be marked in the factory manual the following data: Valve specifications; model; pressure; manufacturing standards; body material; stem material; seal material; valve shaft packing material; stem sleeve material; internal and external anti-corrosion material; operation start direction; rpm; working pressure conditions Kai closed torque; manufacturer indicating the name; factory date; serial number; weight; connection flange diameter, pore number, the center hole is; with graphic images indicate the overall length, width and height of the control size; valve flow resistance coefficient; effective opening and closing times; valve factory testing data and installation, maintenance precautions.
阀门的出厂说明书阀门是设备，在出厂说明书中应标明以下相关数据：阀门规格；型号；工作压力；制造标准；阀体材质；阀杆材质；密封材质；阀轴填料材质；阀杆轴套材质；内外防腐材质；操作启动方向；转数；工压状况下启闭力矩；制造厂厂名；出厂日期；出厂编号；重量；连接法兰盘的孔径、孔数、中心孔距；以图示方式标明整体长、宽、高的控制尺寸；阀门流阻系数；有效启闭次数；阀门出厂检测的相关数据及安装、维护的注意事项等。
Numerical simulations were performed to study the wall effect of the module shell and packing pattern of hollow fibers which are randomly distributed, as well as the influences of flow Reynolds number to the mass transfer coefficient.
通过数值模拟，研究了在透析器外壳内壁面的影响下，纤维表面定浓度时，中空纤维分布的随机性对透析器管外流场和浓度场的影响，同时考察了管外流体速度以及中空纤维填充密度对管外传质系数的影响。
The method for calculating gaseous phase heat and mass transfer coefficient in packed saturator/warming tower was derived. The method for calculating the packing height based on these coefficients is discussed.
导出了计算填料型饱和热水塔气相传质系数和传热系数的方法，分析了应用气相传质系数和传热系数计算填料层高度的方法；
Determination of coefficient of lateral pressure upon the gland packing
密封填料侧压系数的确定
Hydrogen-water liquid phase catalytic exchange bed was packed with sandwich layers of the catalyst and the packing, and the effects of catalyst carrier, inert packing and their filled ratio on the overall mass transfer coefficient (Kya) were investigated experimentally.
以疏水催化剂与填料分层装填催化交换床，研究催化剂的疏水载体、惰性填料及二者的装填比对氢水液相催化交换床传质性能的影响。
The tribological interface characteristics of cotton and ramee braided soft sealing packing in dynamic sealing of high pressure and high water-based fluid were analysed, and the effect of frictional load, surface roughness and velocity on its frictional coefficient was studied by Ring and Block Friction Tester.
分析了高压高水基棉麻动密封软填料的摩擦界面形态，采用环块试验机研究了载荷、表面粗糙度和转速对其摩擦因素的影响。
The composition of particle size and batch for dry ramming mix were determined in accordance with close packing theory and coefficient of particle size distribution in Andresen formulation.
从骨料致密填充理论观点出发，探讨了混凝土骨料的致密堆积方法及致密堆积系数的确定，并给出了配合比设计计算方法。