查询词典 riser

According to mechanical analysis of subsea wellhead for deepwater drilling, a comprehensive stability analysis method is established. The marine environmental loading, drilling vessel or platform drifting, riser mechanical behavior, nonlinear behavior between casing string and formations are considered. Case analysis shows, the lateral displacement and bending moment of wellhead increases along with riser top tension ratios and current velocities.

根据深水钻井水下井口系统整体受力分析，建立了井口力学稳定性分析方法，该方法综合考虑了海洋环境载荷、钻井船或平台漂移、隔水管力学性能、套管柱与地层之间的非线性响应等因素的影响，可以实现井口力学性能分析。

On the other hand, after the reformation the unit specific energy consumption decreased 10 kilogram equal normal fuel oil per ton raw oil. In this paper, author analyse the principle and the advantages of the two stage riser fluidize catalytic cracking technology, where catalyst flow in relay and react in section, and short contact time and high c/o ratio. This paper propose a new method to calculate the catalyst circulation rate in each riser of a two stage riser fluidized catalytic crack unit and find out that the c/o ratio is lower than it should be by calculation use this method and give a suggestion to solve this problem.

本文从理论上分析两段提升管催化裂化技术的催化剂接力、分段反应、短反应时间和大剂油比特点的优越性，并对采用两段提升管技术后装置的生产状况进行核算，还提出了一种适用于两段提升管技术的计算各提升管中催化剂循环量的方法，通过计算分析出装置目前存在的第二提升管剂油比低的问题，并提出了改进建议。

A summary is presented of the overall riser system design, analysis, and execution efforts leading to the successful installation and operation of the Holstein riser and well system equipment.

文章概述了隔水管系统的总体设计和分析，以及为成功建成和运作 Holstein 隔水管和油井系统设备所付出的努力。

The metal mold design now adopt a form of one mole but six cayities ,this way can improve the efficiency;the mold's joint face is the ball's neutral plane,that makes the mold opened convenient;In the gating,the runner and the riser is the same ,and this design adopt scum riser,that make sure a better routing and make sure the casting's feeding;the mold use gravity to lockwasher itself;the core's material is quartz sand,and spread high tempearature resistant dope on it;In the design, same taper in the guide bush of the core box is needed to make sure open the mold easily;The insert blocks of the core box are made by numercial control processing,this way reduce the cost of production; the scale division positioner make sure the same specification has better interchangeability,also,as all the machining can be finished on the general machine tool,it make the cost low,so it can be spreaded abundant in the medium and minor enterprise;when workout the mold's processing technology,this design adopt the rough's two end plane as benchmark,the ball cavities are machined by scale division positioner;then use Autocad,Pro/e to draw planar and three dimension blueprint,use Pro/e to make three-dimensional animation.

本次设计的群铸模具采用一模六腔形式，生产效率高；模具分型面选择磨球的中性面，使得分模方便；浇注系统采用浇冒口一体形式和集渣包设计，保证了良好的加工工艺和补缩；锁模方式为重力锁模；砂芯采用石英砂，并在表层涂以耐高温涂料；芯盒导套选择一定的锥度，使取模容易；芯盒镶块运用数控加工，降低了生产成本；分度胎具保证了同种规格模具具有良好的互换性，而且因为所有加工基本都可以在普通机床上完成，生产成本低，可以为中小型企业普遍采用；在加工工艺编制过程中，采用两端面互为基准，球腔用专业夹具加工；Autocad，Pro/e分别制作了模具的二维和三维立体图，并运用Pro/e制作了三维动画演示。

The metal mold design now adopt a form of one mole but six cayities ,this way can improve the efficiency;the molds joint face is the balls neutral plane,that makes the mold opened convenient;In the gating,the runner and the riser is the same ,and this design adopt scum riser,that make sure a better routing and make sure the castings feeding;the mold use gravity to lockwasher itself;the cores material is quartz sand,and spread high tempearature resistant dope on it;In the design, same taper in the guide bush of the core box is needed to make sure open the mold easily;The insert blocks of the core box are made by numercial control processing,this way reduce the cost of production; the scale division positioner make sure the same specification has better interchangeability,also,as all the machining can be finished on the general machine tool,it make the cost low,so it can be spreaded abundant in the medium and minor enterprise;when workout the molds processing technology,this design adopt the roughs two end plane as benchmark,the ball cavities are machined by scale division positioner;then use Autocad,Pro/e to draw planar and three dimension blueprint,use Pro/e to make three.dimensional animation.

本次设计的群铸模具采用一模六腔形式，生产效率高；模具分型面选择磨球的中性面，使得分模方便；浇注系统采用浇冒口一体形式和集渣包设计，保证了良好的加工工艺和补缩；锁模方式为重力锁模；砂芯采用石英砂，并在表层涂以耐高温涂料；芯盒导套选择一定的锥度，使取模容易；芯盒镶块运用数控加工，降低了生产成本；分度胎具保证了同种规格模具具有良好的互换性，而且因为所有加工基本都可以在普通机床上完成，生产成本低，可以为中小型企业普遍采用；在加工工艺编制过程中，采用两端面互为基准，球腔用专业夹具加工；Autocad，Pro/e分别制作了模具的二维和三维立体图，并运用Pro/e制作了三维动画演示。

The metal mold design nowadopt a form of one mole but six cayities ,this way can improve theefficiency;the mold's joint face is theball's neutral plane,that makes the mold openedconvenient;In the gating,the runner and the riser is the same ,andthis design adopt scum riser,that make sure a better routing andmake sure the casting's feeding;the mold usegravity to lockwasher itself;the core's materialis quartz sand,and spread high tempearature resistant dope on it;Inthe design, same taper in the guide bush of the core box is neededto make sure open the mold easily;The insert blocks of the core boxare made by numercial control processing,this way reduce the costof production; the scale division positioner make sure the samespecification has better interchangeability,also,as all themachining can be finished on the general machine tool,it make thecost low,so it can be spreaded abundant in the medium and minorenterprise;when workout the mold's processingtechnology,this design adopt the rough's two endplane as benchmark,the ball cavities are machined by scale divisionpositioner;then use Autocad,Pro/e to draw planar and threedimension blueprint,use Pro/e to make three-dimensionalanimation.

本次设计的群铸模具采用一模六腔形式，生产效率高；模具分型面选择磨球的中性面，使得分模方便；浇注系统采用浇冒口一体形式和集渣包设计，保证了良好的加工工艺和补缩；锁模方式为重力锁模；砂芯采用石英砂，并在表层涂以耐高温涂料；芯盒导套选择一定的锥度，使取模容易；芯盒镶块运用数控加工，降低了生产成本；分度胎具保证了同种规格模具具有良好的互换性，而且因为所有加工基本都可以在普通机床上完成，生产成本低，可以为中小型企业普遍采用；在加工工艺编制过程中，采用两端面互为基准，球腔用专业夹具加工；Autocad，Pro/e分别制作了模具的二维和三维立体图，并运用Pro/e制作了三维动画演示。

And the exothermic covering flux addition amount dependence of riser diameters, the equivalent modulus dependence of riser diameters and the casting weight dependence of riser diameters have been obtained.

研究得出了发热覆盖剂加入量与保温冒口直径的关系，保温冒口的等效模数，以及根据铸件质量选择冒口直径的图表。

The paper analyzes the important elements which restrict the operation of offshore deepwater drilling riser, including tensile force in top riser, the angle ofbottom globe joint, floats, depth of sea water, and the effects of environmental loadings on riser distortion and strength.

本文对制约海洋深水钻井隔水管施工作业的一些重要因素进行了评价分析，主要分析了隔水管系统的顶部张力、底部球接头角度、隔水管浮力块、水深以及海洋环境载荷(海流速度、海浪周期、浪高、暗流速度及方向等)对隔水管变形和强度的影响。提出了可用于我国今后开展深水钻井隔水管分析设计和使用的理论和方法。

This paper elaborated the basic principle of work and the merit of automobile electrically operated glass frame riser, and elaborated the feasibility the electrically operated glass frame riser on the low speed automobile the application, then has carried on the analysis to each form glass frame riser, selected the structure of rope pulley type electrically operated glass frame riser.

阐述了汽车电动玻璃升降器的基本工作原理和优点，论述了电动玻璃升降器在低速运输车上应用的可行性，对各种形式的玻璃升降器进行了分析，选用了绳轮式结构的电动玻璃升降器。

The results show that the increase of the buoyancy force by increasing the diameter and length of buoyancy modules is favorable for improving the static performances and reducing the requirements for the top tension of the riser, but arranging the buoyancy modules on lower joints of riser string can lead to hard operations of hang off, installation and retrieval of the riser, there fore the arrangement of buoyancy modules and slick riser joints should be considered carefully.

通过增加浮力块的直径和长度增加隔水管的浮力，有助于改善隔水管的各种静态性能，降低对顶张力的要求，但是在下部安装浮力块对隔水管的悬挂、安装及回收不利，因此需要综合考虑。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。