弯管是火力发电厂主蒸汽管道系统中较易损坏的部件之一。
Elbow is one of parts in the system of main steam pipe which is easy to damage.
热煨弯管的防腐一直是埋地管道防腐的薄弱环节，直接影响管道的使用寿命。
Anticorrosion of heating bend pipes is a problem all along in buried pipeline construction. It affects directly the service life of the pipeline.
②如有垂直向上的管道，通常必须拆弯管；
在燃气管道设计中对管道转角的处理，可以采用机制弯管、热煨弯头、冷弯弯管、弹性敷设。
The mechanical elbow, hot-bending bend, cold-bending bend and elastic installation can be used to handle pipeline corners in design of gas pipeline.
陕京输气管道用的弯管在力学性能与尺寸极限偏差上是体现其达到90年代国际先进水平的两个主要方面。
The mechanical property and bend's dimension limit deviation used in Shanjing gas pipeline are the two major aspects representing 90's international advanced level of the pipeline.
弯管是长距离油气输送管道的重要组成部分。
Bends are the important parts in the long distance pipeline of oil and gas.
通过顶部玻璃纤维绝缘层可以连结管道和电源。使用如图所示的弯管、螺纹接头、管道接头连接冷水进水管和热水出水管。
Connect the cold water supply line and hot water outlet lines using elbows, nipples and unions as shown in the diagrams.
简介了一种利用冷弯管组拼方法形成管道曲线段的技术。
This paper introduces a kind of technology using built up and connection method to make the pipeline bending curve of the cold bending tubes.
热力钢弯管是主蒸汽管道的薄弱部位之一，其寿命直接关系到整个管道系统寿命。
The heat - resisting steel elbow is one of the weak parts of the main vapour piping, the life of which is directly related to the life of entire piping system.
在直插管道与弯管、三通等异形管件的相互联接中，具有安装效率高、密封性能好的优点。
The pipe quick coupling port structure has the advantages of high installation efficiency and high sealability in the coupling of such special pipes as straight pipes, bent pipes, T-joints and so on.
对于水平弯管，轴向和水平方向上的变形要比垂直方向上的大，管道变形主要是由流体对管道的冲击作用引起；
To horizontal bend, the displacement of axial and horizontal direction is larger than vertical direction. The displacement of pipe is mainly caused by the impact of two-phase flow.
设计了由三轴差速机构、管径适应机构组成的管道机器人三轴差动式驱动单元，对驱动单元在直管、弯管的差速特性与力学特性进行了理论分析。
This paper discusses the mathematical modeling of in-pipe robot, and the analysis of the robot for fitting in pipelines such as siphon and branch pipeline.
设计了由三轴差速机构、管径适应机构组成的管道机器人三轴差动式驱动单元，对驱动单元在直管、弯管的差速特性与力学特性进行了理论分析。
This paper discusses the mathematical modeling of in-pipe robot, and the analysis of the robot for fitting in pipelines such as siphon and branch pipeline.
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