大旋流

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 results shows that, when Re, H/D are larger, a stable vortex is generated at two sides of the convex surface.

研究结果表明当Re，H/d较大时，在凸面靶板周向两侧形成了稳定的旋流结构。

Small diameter and little awl corner hydrocyclone has better separate, lower work capacity, large pressure drop and diffluence ratio.

小直径小锥角水力旋流器分离粒度小、处理量小、压降大、分流比大；

The sensitivity of parameters are analyzed, and results show that the hydrocyclone, acting as an energy divider, is the core of downhole oil water separation system, and the production of oil formation as well as the injectivity of injection zone have great impact on the designing result.

对主要影响参数进行敏感性分析，结果表明，旋流分离器起到分配能量的作用，是系统协调工作的核心，同时地层产液量、注水启动压力、吸水指数对设计结果有较大的影响。

The cyclones with short cone are used for crude grading of minerals with heavier specific gravity in gold mines, sand gold mir.es and sulphur ore mines and have such advantages as small ground occupation, high capacity, high operating flexibility, low energy consumption and high movability etc.

短锥分选旋流器用于金矿、砂金矿、硫化矿等比重较大的矿物的粗选作业，具有占地面积小，处理能力大，操作弹性大，能耗低，可移动性强等优点。

In order to achieve the needed length fiber, fractionation of softwood pulp fiber were carried out with a cylindrical hydrocyclone.

纤维长度对纸的质量影响很大，不同长度的纤维适合不同类型的纸张，为了获得所需要的纤维长度，提高经济价值，我们用圆柱形水力旋流器对纸浆纤维进行筛分。

And it is noted that the velocity field in a hydrocyclone is divided to two areas, i.e. the outer para-free-vortex and the inner para-forced vortex. The boundary surface of the velocity field is the maximum tangent velocity track surface, which is a cylinder when the hydrocyclones structure is reasonable.

分析研究结果表明，旋流器的切向速度场由外部准自由涡和内部准强制涡两个区域构成，其分界面为最大切向速度vtmax的轨迹面，结构设计合理时，此轨迹面为一圆柱面。

The structure of hydrocyclones are compact,treating amount is large and exallent in effect, Tests prove that it can be used as the main facilities in high water cut oilfield and it has formed a continuous line including produced fluid preseparation, crude dehydration, and produced water pretreatment etc- The conventional once completed instal1ation of settli...

水力旋流器结构紧凑，处理量大、效果好。试验证明，在高含水油田地面建设中，可以水力旋流器为主要设备，构成采出液预分离、原油脱水和采出水处理一条龙工艺流程，可替代常规的一次沉降脱水设备。

According to the existent problem of the running water film deduster which included the more pressure drop and the efficiency of low removal dust,the method was discussed by applying venturi and rotating-stream-tray and spraying and demister to reconstruct the old deduster.

针对文丘里水膜除尘器运行中存在的压降过大和除尘效率过低等问题，采用文丘里+旋流板+喷淋+折流除雾器的方法对原有除尘器进行改造。改造工程应用表明，该方案的阻力和除尘效率在理论上的分析与实际应用相一致，在文丘里喉管气速 40m/s，液气比 0 。5L/m3 ，喷淋液气比为 1.5L/m3 时，除尘效率达到 95 %以

Firstly in the paper the research of hydraulic characters and the optimize of structure have being carried out on the four bigger design schemes of permanent internal dissipation discharge tunnel reconstructed from the right banks diversion tunnel of Gongboxia Power Station with a method of theoretical analysis combined with test comparisons. On this basis , two form swirling flow internal dissipation schemes, vertical and horizontal axis are recommended to the construction unit of the station as the schemes to be selected next.

本文采取理论分析与试验比较相结合的方法，首先对黄河公伯峡水电站右岸导流洞改建为永久式内消能泄洪洞的四个较大设计方案进行了水力特性的试验研究与体型优化，在此基础上，向建设单位分别提供了竖井旋流内消能的推荐方案与水平旋流内消能的推荐方案。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。