This paper introduces a new wall protection method for drilling loose strata casing pipe wall protection.
本文介绍一种新的钻探松散地层护壁方法——套管护壁“三板斧”。
In the case of suspected corrosion of heat exchangers and pipe wall thickness.
在怀疑有锈蚀的情况下对换热器及管道的壁厚进行检查。
Furthermore, the nearer to the pipe wall, the faster the temperature decreases.
越靠近管壁，温度降低幅度越大。
Liquid velocity is near zero at the pipe wall and increases to maximum at the pipe center.
在管壁处液体速度近似为零，并在管中心处达到最大。
By using computer to calculate, we find the fluid flush on the curved pipe wall is also oscillatory.
本文还通过计算机计算，得知流体对弯管两侧的冲刷力也是振荡的。
The impact of powder particle flow of different R/D on the bend's pressure drop and pipe wall wear is also discussed.
并讨论了不同R/D的粉体颗粒流动对弯管压力降及管壁磨损的影响。
The utility model can not deposit ash or dust on the pipe wall easily, with the advantages of high heat efficiency, etc.
本实用新型不易在管壁上积灰、积垢，并具有传热效率高等特点。
A sensor which is applicable to test thickness of gas pipe wall based on electromagnetic flux leakage method is proposed.
提出了一种基于电磁式漏磁检测原理的传感器，用于煤气管道壁厚检测。
Internal stress of welds seam for long distance pipeline is analyzed starting with any point of circumferential stress on pipe wall.
从钢管壁上任意一点的环向应力入手，分析了长输管道焊缝的内应力。
The liquid in the center of the pipe starts flowing first, and as velocity increases liquid near the pipe wall moves also but at a lower rate.
在管子中心部分的液体首先开始流动，随速度增加贴近管壁的液体也开始流动，但流速较低。
Rifled or other pipe wall corrugation may change the flow from a hetero-generous to a homogeneous regime by introducing a secondary circulation.
在有来复线的或其它的管壁皱纹的管中，由于引起副流，可能将非均质流转变为均质流。
It shows that pipe bending by using induction heating applied a counter torque can efficiently reduce the thinning ratio of pipe wall thickness.
计算结果表明：在转臂上施加一定的反向弯矩，能有效减小弯管的壁厚减薄率。
The velocity and temperature distributions are nonuniform on cross section. The velocity is small and the temperature is high close to the pipe wall.
管道横截面上的速度、温度分布不均匀，越接近管壁速度越小，温度越高。
Simulation computation indicates that enhancement by micro-convection has identical magnitude as that by apparent conductivity of fluid in the pipe wall.
模拟计算表明，由微对流导致的对流换热强化与流体在管壁面上的表观导热系数强化具有相同的数量。
Researches show that the pipe wall thickness deflection occurred during the pipe manufacturing could influence the intensity of the casings to some extent.
研究表明在石油套管的生产过程中产生的壁厚误差会在一定程度上影响套管的强度。
The connection strength increases with the increasing of bearizing rate of coupler and thickness of pipe wall, but decreases with the increasing of connection length.
管接头的连接强度随着扩孔率、管壁厚度的增加而升高，但随着连接长度的增大而降低；
The front end of the nip of the gauge head pliers is an oblique blade which can hang the pipe wall port of the cable connection clamp for measuring the holding force.
表头钳钳口的前端是一个斜刃，可挂住电缆接线卡的管壁端口，以测量其握裹力。
The adaptive feedforward control technology, which is implemented in the stretch reducing process of seamless pipe wall thickness at Baosteel Tubing Plant, is introduced.
介绍了宝钢分公司钢管厂在无缝钢管张减过程壁厚控制中实现的前馈自适应控制技术。
A novel water pipe, comprising a pipe wall and a tubular body with a pipe cavity, wherein the upper edge of the pipe wall (1) is axially provided with at least one groove (2).
一种新型水管，包括管壁和具有管内腔的管状体，其特征在于，所述的管壁(1)上沿轴向设有至少一条凹陷槽(2)。
Due to different conditions, such as pipeline material, environment, load bearing, different cracks arise in the pipe wall or welding seam, which will lead to oil or gas leakage.
由于管道的材质、所处的环境以及承受荷载等条件不同，在管壁或焊接部位会出现不同程度的裂纹，从而导致管道破裂产生油气泄漏。
The article presents a measurement method of intensity and position for LIA beams. By monitoring the image current on the inner pipe wall the beam intensity and position are obtained.
本文介绍了通过测量束流在输运管壁上形成的感应电流，来确定直线感应加速器束流大小、位置的一种方法。
After checking the pipe wall thickness, pipe stress and safety factors this batch of steel material has still complied with the requirements, while safety Surveillance should be enhanced.
通过管道壁厚、管道应力、安全系数的校核，表明该批钢材仍符合要求，但要加强安全监督。
Combined with project practice and based on mechanism analysis about pipe wall cracks in former single pipe style reinforcement chimney how to enhance methods of chimney durability is given.
结合工程实践，通过对以往工程单管式钢筋混凝土烟囱筒壁裂缝产生的机理分析，提出了提高烟囱耐久性的途径。
The invention provides a drain pipe comprising a main pipe, wherein installing parts are arranged at both ends of the main pipe and a spiral rib is arranged on the pipe wall of the main pipe.
本发明提供一种排水管。所述排水管包括一个主管，所述主管两端设有安装部，所述主管的管壁上设有螺旋筋。
The selection of pipe wall thickness, the calculation and design key points of the melt flow, melt pipe flow pressure fall and melt flow speed in the design of melt pipes were introduced in detail.
介绍了熔体管道设计中管道壁厚选择、熔体流量、熔体管道流动压力降和熔体流速等计算方法和设计要点。
In the evaluation of steel pipe quality, the pipe appearance, the weld appearance, the pipe wall thickness, the defect types and sizes, and the pipe materials are selected as the evaluation factors.
在钢管质量评价过程中，选取了钢管外观、焊缝外观、管道壁厚、缺陷种类及尺寸、管道材料作为评价因素集。
The evaporation model of micro heat pipe with triangular cross section was presented by analyzing both the heat transfer through the thin liquid film and the heat conduction along the heat pipe wall.
通过对薄液膜蒸发传热以及热管壁轴向导热的分析，对三角形截面微型热管的蒸发段建立了蒸发传热模型。
The results imply that the microorganisms grow inside the bio-film attached on the pipe wall should be a concern even though generally the bacteria in water in the distribution system can be ignored.
研究结果表明，尽管通常管网水中细菌较少，能达到国家的水质标准，但管壁生物膜上的微生物生长也应引起足够的重视。
Pipe wall electrostatic effect is often produced in the pipe of air-solid phase pneumatic conveying.
气固两相流管道中常发生管壁静电效应。
Head cover of cement kiln, cooler, decomposing furnace, heating furnace of steel rolling, furnace bottom. Wrapping of water pipe, wall and roof of furnace, ect. It can be used for repairing quickly.
水泥窑窑头罩、冷却机、分解炉、轧钢加热炉，炉底、水管包扎、炉墙、炉顶等部位，可进行快速抢修。
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