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internal pipe
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  内管
     This paper describes some technical problems during the development of the liquid hydrogen pipeline,which contain the multilayer adiabatic technique of carbon dioxide condensing vacuum,overall plan,compensation capacity rational distribution,adiabatic structure design, internal pipe design, external pipe design and the examination of the pipe vibration fatigue strength and the pipe rigid as well as the development of the steady metal thermocouple vacuum-gauge.
     扼要地叙述了液氢输送管研制中新发展的几方面技术,包括二氧化碳冷凝真空多层绝热技术、总体设计和补偿量合理分配、绝热结构设计、内管设计、外管设计、导管振动疲劳强度与导管刚度的考核,以及稳定型金属热偶真空规的研制等。
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  “internal pipe”译为未确定词的双语例句
     For the internal pipe wall claded with electrostatic spray-on process, the various anti-corrosion indexes have reaches the design requirements, the impact strength is not less than 4. 9 J; the breakdown valtage of the clad is not less than 30 kV/mm.
     经静电喷涂的钢管管壁,内外防腐的各项指标均达到设计要求,抗冲击强度不小于4.9J,覆盖层耐击穿电压不小于30kV/mm。
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     On the basis of analyzing disadvantages of present inspection techniques and problems on distributed optical fiber sensing technology for submarine pipeline, aiming the difficulty in project application, the preliminary plan of adopting air-blow method in internal pipe and glue connection method on external pipe has been putted forward.
     本文分析了国内外各种海底管道检测方法的不足以及分布式光纤传感技术在海底管道监测中存在的问题,针对工程应用中的难点,提出了管内气吹法、管外粘贴法布设光纤传感系统的基本思路。
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     Introduced the steel pipe friction reducing internal coating manufacturing process and main equipment, present the typical process layout of internal pipe coating production line, also introduce the form and the working principle of the main equipment.
     介绍了钢管减阻型内涂层技术的生产工艺和主要设备 ,给出了内涂层生产线典型的工艺布置 ,并对主要设备的组成及工作原理进行了介绍。
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     A seperating sphere is easy to show wear due to the friction on the internal pipe wall, the following parameters should change according to the length of the pipeline: the diameter of the sphere, the size of the contact rings between the pipe wall and the sphere.
     由于隔离球易被管内壁磨损,使隔离球的直径以及隔离球与管内壁间接触环的大小都随管道的长度而发生变化;
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     Comparing with the conventional sliding insertion method, the pulling load of rolling insertion method is low,the PE liner is easy to run through the pipe elbow without plugging,but the surface preparation of internal pipe wall and a certain environmental condition had to be needed.
     与传统的滑套式衬里法相比,转动塞入法的牵引负荷低,使衬里管易通过管道弯头,且不会造成管道堵塞,但对钢管内表面的处理及环境条件要求较严格。
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  相似匹配句对
     On Corrosion Prevention of Internal Gas Pipe
     室内燃气管道防腐蚀问题的探讨
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     Internal Corrosion of Steel Pipe and Cathodic Protection
     钢质管道内壁腐蚀的原因及其阴极保护
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     Internal Control
     一种全新的内部控制观探析
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     ON Internal Control
     论内部控制
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     Pipe conveyor
     管状带式运输机及其在设计中的选用
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  internal pipe
First, the wall pressure field acting on the internal pipe wall is investigated.
      
Equivalent drag-reducing performance is observed with 3 M riblets in fully developed internal (pipe) and developing external (flat plate) flows.
      
The schematic diagram is presented of the experimental facility for the investigation of melting of paraffin in a system consisting of an internal pipe and a coaxially arranged external pipe.
      
The sensor camera analyses the circular patterns which are projected onto the internal pipe wall surface ahead.
      
The pipes need not be dewatered for impact echo to function but the internal pipe walls has to be fairly clean.
      
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For placer drilling a new method, known as the center sample recovery method, is under development abroad. Drilling is performed by a double-tube rigid type drill pipe driven with a dynamic head. with high pressure air current passing the clearance between the double tube down to the hole bottom and carrying the rock cuttings through the internal pipe up to the earth surface. The specifications of drilling tools, bit types, air current technical parameters, sample collection and division methods,and efficiency...

For placer drilling a new method, known as the center sample recovery method, is under development abroad. Drilling is performed by a double-tube rigid type drill pipe driven with a dynamic head. with high pressure air current passing the clearance between the double tube down to the hole bottom and carrying the rock cuttings through the internal pipe up to the earth surface. The specifications of drilling tools, bit types, air current technical parameters, sample collection and division methods,and efficiency for this new placer drilling method are introduced in this paper. It has been also pointed out that this method can not be used for solid mineral sampling and to determine the stratal configuration elements and lithomechnical parameters by direct measurements are impossible.

概括地介绍了国外正在发展的Center sample Recovery钻探法。它是由动力头回转双壁钻杆进行钻进,用高压气流沿管壁间隙通到孔底后,携带岩屑由钻杆中心孔返回地面。介绍了钻具规格性能、钻头种类、气流工艺参数、样品收集与缩分方法,以及这种新方法的高效特点。这种方法不能取得完整岩矿心,从而无法直接测得地层结构要素和岩石的力学参数。

The experimental pressure contact system with single transducer has been developed to detect internal pipe in hot steel bloom. The system can be used for detecting pipe or flaw and measuring sound wave velocity at temperature up to 1120℃ and 1300℃, respectively.The hardware and software used for inspection and signal processing are described. The relation between echo-amplitude and pressure exerted is analyzed and discussed, curves and formula showing the relation obtained as well as pipe-testing...

The experimental pressure contact system with single transducer has been developed to detect internal pipe in hot steel bloom. The system can be used for detecting pipe or flaw and measuring sound wave velocity at temperature up to 1120℃ and 1300℃, respectively.The hardware and software used for inspection and signal processing are described. The relation between echo-amplitude and pressure exerted is analyzed and discussed, curves and formula showing the relation obtained as well as pipe-testing results are given.

本文发展了一整套单探头压力接触法高温钢坯缩孔超声检测实验系统。这个系统可分别用于1120℃钢坯缩孔的超声检测及1300℃以下试块的声速测试等。文中阐述了系统的设计原理,检测与信号处理专用硬件,软件。分析讨论了回波幅度与压力的关系,给出了关系曲线和关系式以及缩孔的检测结果。

Mixed oil quantity should be reduced so as to reduce the cost of product pipeline and investment of slop tanks. The main method of reducing mixed oil quantity is to utilize seperating spheres. A seperating sphere is easy to show wear due to the friction on the internal pipe wall, the following parameters should change according to the length of the pipeline: the diameter of the sphere, the size of the contact rings between the pipe wall and the sphere. A differential pressure usually occurs due to...

Mixed oil quantity should be reduced so as to reduce the cost of product pipeline and investment of slop tanks. The main method of reducing mixed oil quantity is to utilize seperating spheres. A seperating sphere is easy to show wear due to the friction on the internal pipe wall, the following parameters should change according to the length of the pipeline: the diameter of the sphere, the size of the contact rings between the pipe wall and the sphere. A differential pressure usually occurs due to the friction force between the pipe wall and the sphere. Acted on by the condition of the differential pressure, influenced by vescosity and pits (in the internal pipe wall caused by corrosion), seepage oil (before/after the sphere) from between the sphere and the pipe wall forms the mixed oil, the differential value causes the sphere and the liquid flow at different speeds , thus enlarging the quantity of mixed oil. It is hard for the seperating sphere we have been using to reach the satisfactory seperating effect. The new type seperating unit is designed to have a simple structure for regulating the width of contact rings, which basically keep one set value. Besides, a negative structure compensating seepage oil before the sphere is also designed, which makes the seepage ahead equal to what follows afterwards. If the two measures mentioned above are taken, the quantity of seepage oil ahead can be reduced to a minimum. the sphere can be made to travel as identically as possible with the average liquid speed thus reducing the mixed oil quantity to a minimum.

为了降低成品油管道的造价,减少混油罐的投资,提高经营效益,就必须减少混油量。降低混油量的方法主要是使用隔离球。由于隔离球易被管内壁磨损,使隔离球的直径以及隔离球与管内壁间接触环的大小都随管道的长度而发生变化;隔离球与管内壁间的摩擦力使球的前后存在一个压差,在压差作用下,再加上油品粘性和管内腐蚀凹坑的影响,产生了通过隔离球与管内壁缝隙的超前渗流和落后渗流,形成混油。而它们的差值又导致了隔离球的运行速度与油流平均速度不一致,进一步加大了混油量,使现用的隔离球很难达到满意的隔离效果。新型隔离器设计了简单的接触环宽度调节结构,使其基本保持一个定值。另外还设计了超前渗流负补偿机构,使超前渗流基本等于落后渗流。采用上述二项新措施后,能最大限度地减少超前渗流量,最大限度地使隔离器的运行速度与油流平均流速相一致,从而最大限度地提高隔离效果,降低混油量。

 
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