The influence of impeller type, baffle configuration and gas sparger on critical suspension speed of floating particle s in an agitated vessel was investigated.
在釜径 386 mm的搅拌釜内，考察了搅拌桨型、挡板和气体分布器等对自浮颗粒三相搅拌混合的临界搅拌转速的影响，并回归了实用的关联式，这对工业过程的设计和放大具有一定的指导意义
The influences of impeller types, baffle configurations and gas sparger on critical speed of floating particle in an agitated vessel were investigated.
考察了釜径为386mm的搅拌釜内搅拌桨的类型、挡板和气体分布器等对自浮颗粒三相体系搅拌混合临界搅拌转速的影响，得到了回归的关联式：Ncr=CVSawbdcdSe，相对误差为3.34 %～11.58 %。
The condensing tower comprises a gravity settling chamber where a set of loading trays is fixed, wherein the middle-lower part of the condensing tower mounts a round condenser tube, of which the upper and lower ends is connected with a sieve pore type baffle, in manner of closest arrangement based on the round section. The upper part of the condensing tower comprises a spherical cover without hem, a pre refrigerating chamber, a gas pipe type refrigerated trap, and the lower there of is a passive cold trap.
冷凝塔包括重力沉降室，沉降室内安有一组承料盘，冷凝塔中下部有按圆截面最紧密排列的方式设置圆形冷凝管，冷凝管上、下端联接有筛孔状隔板；冷冻塔上部分包括无折边球形塔盖，预冷冻室和气管式冷冻捕集器，下部分为无源冷阱捕集器。
It is a sealed steel pressure tank, the internal baffle design, the following set, you can speed up the gas and water dispersion, and mass transfer process and improve the efficiency of dissolved air.
它是一个密闭耐压钢罐，内部设计有挡板、隔套、可以加速气体和水体的分散、传质过程，提高溶气效率。
Some safety relevant concerns, such as the fuel temperature and primary loop pressure, the graphite corrosion mass, the explosive gas releasing amount, as well as the natural convection influence under the condition of the failure of the blower baffle shut down, were studied.
此外，还分析了风机挡板关闭失效情况下堆内温度分布差异所造成的自然循环对事故后果的影响。
This paper deals with the experiments of the influence between the horizontal baffle and air flow, it also investigates the cold condition simulation tests about the influence between the gas horizontal crossrange air flow and the flow field near the burner'outlets.
本课题进行了水平挡板对气流影响试验，和水平侧向气流对燃烧器喷口出口处流场的影响的冷态模拟试验研究。
Effects of baffle, gas and slurry flow rates and solids loading on liquid phase axial mixing were investigated by using the tracer technique in a rectangle gas-liquid-solid three-phase fluidized bed reactor, in which a multiplayer shutter-like baffle was installed.
在流化床内设置内构件改善床内的流体力学性能，以满足不同的反应过程的特殊需要，如在床内加入换热构件改善传热特性，或将床层分成多级使得气体在床内的停留时间分布变窄，改善气固间接触等，这在两相流化床反应器中早已采用[1-5]。
The experiment results prove that the boiler coking is largely reduced and the temperature difference of two sides of horizontal gas-pass is very small, when the 330MW boiler operate, the pressure of primary hot air parison is controlled beyond 12.0～12.5KPa, the O2 content of air pheheater is controlled about 3.0%, the door of OFA is opened to 30%, the buffle of the inner secondary air sleeve is adjusted to the minimum, the outer secondary air swirling strength and the baffle of the outer secondary air sleeve is regulated to the maximum and the outlet temperature of pulvervised mill is kept in 70℃.
试验结果表明，330MW运行时，一次热风母管压力控制在12.0～12.5kPa以上、空气预热器实际氧量控制在3.0％左右、燃尽风门开至30％、内二次风量套筒挡板调整在最小、外二次旋流强度和外二次风套筒挡板调整到最大、磨煤机出口温度维持在70℃，此时锅炉结焦大幅度减轻，水平烟道两侧烟温差非常小。优化试验完成后，进行了单烧灵武烟煤对比，结果是：掺烧高灰熔点的银北煤后，炉膛结焦大幅度减轻，锅炉过热器减温水量较小，主蒸汽压力易提高，带负荷能力正常；再热器烟气挡板开度较大、减温水量较小；风机电耗较小。
The efficiency of twin-tangential annular flow gas distributor was determined by structures of baffle s and sleeves.
双切向环流气体分布器性能的优劣与导流板和套筒结构的密切相关。
The computational fluid dynamics method is used to simulate numerically the two phase flow of gas and liquid in a demister with corrugated baffle. The demisting efficiency and pressure drop under various droplet diameters, gas velocities and plate spacings are provided. The effects of main design parameters on the demisting efficiency and pressure drop are analyzed.
用计算流体力学方法对波纹板除雾器内的气液两相流动进行了数值模拟，计算得到了不同液滴直径、进气速度与叶片间距下除雾器的除雾效率和压降，并分析总结了各参数对除雾效率和压降的影响规律。
Employing particle image velocity techniques, the liquid column atomized gas-liquid two-phase flow field inside an experimental platform is measured. The results indicate that, type of baffle, inlet liquid flux, flue gas velocity and space between nozzle and baffle determine the atomizing properties of liquid column. Besides, the particle size distribution corresponds with the Rosin-Rammler distribution model perfectly. The experimental conclusions between flow field research with PIV and study of desulphurization characteristic on liquid column impinging tower have a little difference. Based on this study, the operation conditions of liquid column impinging tower can be optimized.
试验研究的结果表明：烟气流速一定时，浆液流量越大，浆液液滴的平均粒径也越大；浆液流量一定时，液滴平均粒径随烟气流速增大而减小；在相同的烟气流速和浆液流量下，喷嘴与挡板间距越小，雾化效果越好；雾化后的浆液液滴粒径符合Rosin-Rammler分布；在液柱冲击塔试验台上的测试结果与液柱冲击塔模拟流场的PIV试验结论相符，通过对液柱冲击塔试验台的模拟流场及其脱硫特性的研究可以得到其最佳的运行工况。
The experimental equipment is designed by the author for investigating the hydrodynamics and mass transfer characteristics of the new sieve baffle tray. The experimental result is as follows: The maximum entrainment is only 0.06% and much less than the allowable 10%, which means that the operational flexibility of the new tray is large. Under the same operation condition, its pressure drop is lower than the traditional tray, even adding baffle in column, which means that the new tray has the advantage of operating at high liquid/gas ratio. Experimental work was done to obtain the mass transfer efficiency by the humidification of air. The Experimental result shows that the efficiency of mass transfer becomes lower when the velocity of empty column is increasing and when the liquid load is increasing. Increasing the height of weir, the efficiency of mass transfer becomes low down. When adding the baffles, the mass transfer efficiency becomes higher.
自行设计了实验装置对该塔板的流体力学和传质情况进行了研究，我们得到，此种塔板的雾沫夹带率最大只有0.06%，远远小于传统塔板要求雾沫夹带率小于10%的上限，因此塔板操作弹性比较大；在相同气液流动参数条件下，此塔板的压降远远小于传统塔板，如果根据操作需要，即使在折流塔板内加一定数目挡板，其压降也远低于传统塔板，这使得此种塔板在高液气比下，具有传统塔板无可比拟的优点；运用空气增湿的方法对气体折流塔板进行了传质实验，实验结果表明，此塔板的传质效率随着空塔气速的增加下降，随着喷林密度的增加而降低，随着堰高增加传质效率逐渐变小，在塔板间加挡板的传质效率明显高于不加挡板的传质效率，并且挡板的开空率60％的传质效果要好于开空率40％的，并且在气液比小于10的条件下，折流塔板的传质效率明显高于筛板，而在气液比大于19情况正好相反。
Characteristics of gas-liquid mass transfer of surface aerator with self-rotating floating baffle
带自旋自浮挡板的表面曝气装置气液传质特性研究
The gas-liquid flow pattern, critical dispersion impeller speed, power consumption, gas hold-up and bubble residence time were studied in a baffle-gassed agitated vessel with multiple impellers.
研究了挡板进气多级搅拌槽内的气-液分散流型、临界分散转速、搅拌功率、气含率和气泡停留时间。
The influences of structure variables such as impeller types, baffle configurations, gas sparger, and operational variables such as gas rate, particle fraction on critical suspension speed of floating particle in an agitated vessel were investigated.
探讨了搅拌桨型、挡板和气体分布器等结构因素及气体流量、颗粒质量分数等工艺因素对下沉颗粒三相体系临界搅拌转速的影响。
Properties of gas-liquid dispersion in a baffle-gassed multistage agitated vessel
挡板进气多级搅拌槽内的气－液分散特性
It was found that at the same superficial gas velocity, bubble frequency and rise velocity are independent on the aperture ratio, hole diameter and baffle plate distance (the ratio of the baffle plate distance to the bed diameter is smaller than 3).
结果表明，在一定的气速下，挡板的开孔率、孔径和板间距（级间高径比小于3）对气泡频率和气泡速度的影响较小；
Further, a cold model test is done so as to simulate the flow condition between gas distributor and3rd baffle in the simulated fluidizing bed;
更进一步地，进行了模拟流化床内由气体分布器到第三块挡板间气体和催化剂流动状态的冷模实验；
The ceramic part can be various parts of a vacuum processing chamber such as a liner within a sidewall of the processing chamber, a gas distribution plate supplying the process gas to the processing chamber, a baffle plate of a showerhead assembly, a wafer passage insert, a focus ring surrounding the substrate, an edge ring surrounding an electrode, a plasma screen and/or a window.
陶瓷件可为真空处理室的各种部件，如处理室侧壁内的衬套、向处理室供给处理气体的气体散布板、喷淋头组件的缓冲板、晶片垫圈、衬底周围的聚焦环、电极周围的边环、等离子体屏蔽板和/或窗口。
It is found that the solids backmixing rate between stages is mostly influenced by gas velocity, baffle free area and baffle spacing, but it hardly influenced by solids feed rate and the diameter of the holes in the perforated baffle.
结果表明，影响级间固体返混速率的主要因素是气速、挡板开孔率和板间距，固体净流率和挡板孔径的影响不明显。