Bends are the important parts in the long distance pipeline of oil and gas.
弯管是长距离油气输送管道的重要组成部分。
It is proved by examination that the economical and practical equipment and technics are suitable for the long distance transmission pipeline, and it has good foreground of spreading and appling.
试验证实，这是一种与长输管道自动焊配套的经济实用型成套设备，具有较好的推广应用前景。
According to the model, a corresponding software has been programmed which provides a decision-making basic for optimizing transmission of long distance heated crude oil pipeline.
根据所建模型编制了相应软件，为加热原油的长距离优化输送提供了决策依据。
This article is useful for the oil pipeline optimal operation and long distance gas pipeline design to some extent.
本文对热油管道的运行优化和天然气长输管道设计也具有一定的借鉴意义。
The deterioration of corrosion of long-distance pipeline, the damages and spalling of protecting layer have imposed great threats to the reliable operation of pipeline.
长输管道腐蚀问题日趋严重，防护层存在的破损、剥离等缺陷对管道安全运行构成极大威胁。
This paper introduces the oversea and domestic research generalization, progress, main assessment methods and the exiting problems of long distance oil-gas pipeline engineering risk assessment.
介绍了油气长输管道工程风险评价的国内外研究概况、进展、主要评价方法及存在的问题。
It describes water replacement to clear long-distance LPG pipeline before repairing the pipeline.
叙述在长输液化气管道检修前清理原有的液化石油气所采用的水置换法。
Aimming at the safety of welding of long-distance pipeline, this paper analyzes the hazardous substance of welding process, and puts forward the relevant precautionary measures.
针对长输管道焊接过程出现的安全问题，分析了焊接过程中的有害因素，并就相关有害因素提出了防范措施。
It is not only solved the problem of long distance pipeline steel relying on import, realized import substitute, and also successfully applied on pipeline project both home and abroad.
不仅解决了我国长输管线用钢长期依靠进口的问题，产品能替代进口，并在国外管线工程上得到了成功的应用。
The key in long-distance pipeline construction is welding process, long-distance pipeline construction quality is inextricably linked with quality control of welding process.
在长输管道工程施工中的关键是焊接过程，长输管道工程的施工质量好坏与焊接过程的质量控制是密不可分。
This paper focuses on the applications of GPS to the long-distance pipeline project.
本文主要研究GPS技术在长输管线工程中的应用。
For the total length of long distance pipeline, there is no definite stipulation in the design's stage in design standards.
在管道设计的各个阶段，长输管道的总长度在设计规范中没有明确的规定。
This paper evaluates underground gas storage on the base of combining the particularity of long-distance transporting pipeline, and gets economic benefit incarnate cost.
对储气库的经济效益进行了研究，结合天然气长输管道的特殊性，评价了地下储气库的经济效益。
A reasonable selecting of welding methods and applying corresponding welding technology are the keys to ensure the welding quality of long-distance transportation pipeline.
合理的选择焊接方法和应用相应的焊接技术是保证长输管道焊接质量的关键。
On the basis of proposed algorithm, we developed a visual operational guidance system for long-distance pipeline station.
在所提算法的基础上研发了长输管道场站的可视化动态操作指导系统。
Some valuable points are summed up in the application of GPS controlling network by assessing and analyzing the quality of the practical data in the long-distance pipeline project.
通过对具体观测成果的的质量进行评定分析，总结了长输管线工程GPS静态控制网技术设计应该注意的问题及措施。
Numerical simulation using the methods of characteristics in a horizonal pipeline, the pressure drop in inclined pipeline, and the long distance plug-flow pneumatic conveying are reviewed.
此外评述了用特征线方法进行水平管的数值模拟，倾斜管的压力降计算和长距离的栓流气力输送。
When long-distance pipeline is located at the saliferous soil, the differential concentration of salt will speed up corrosion of pipeline.
长输管道在通过盐渍区土壤时，土壤的盐浓度差异会使处于高盐浓度土壤中的管道加速腐蚀。
To cope with this problem, the water needed is supplied from outside sources via long distance pipeline.
为了解决水源问题，需从较远的地区长距离输水到用水区。
Transport though long distance pressured pipeline has the characteristic of steadiness, continuity, safety, reliability, being unpolluted, little material, small needed area and low cost etc.
利用有压长距离管道运输具有输送平稳连续、安全可靠、不受污染、质量易保证、物料损耗小、占地面积少、运输费用低等特点。
Besides the second long-distance pipeline, expansion of Dazhangtuo underground gas storage project and other new underground gas storage projects will be constructed as well.
建设天然气进京第二条长输管线工程、大张坨天然气地下储气库扩建工程及其他的天然气地下储气库工程。
Therefore, Beijing should initiate the construction of the second long-distance pipeline immediately.
因此北京必须立即着手引进第二条长输管线。
The natural gas pipeline from Hangzhou to Huzhou is a large branch of "West-to-East gas pipeline", and the first long-distance gas pipeline in Zhejiang Provice.
杭州—湖州天然气输气管道工程是西气东输工程主要支干线之一，也是浙江省的第一条天然气长输管道。
The acceptance method, used to monitor recovery of banded plant destroyed in the process of laying long-distance natural gas pipeline, is discussed in the paper.
探讨了长距离输气管道工程埋设过程中造成的带状植被破坏后的恢复监测验收方法。
It is considered that the results are important base to further study and predicate the air exhausted time for vacuum drying of long-distance pipeline.
研究结果对进一步进行长输管道真空干燥抽气时间的预测研究提供了重要的依据。
For the safety of gas transmission in long distance pipeline, the method regarding how to get the proper value of pressure drop rate for the fast block valve on pipeline is studied.
根据输气管道安全的需要，对干线快速截断阀压降速率设定值的确定方法进行了研究。
The calculation method on evacuation time for drying of long-distance pipeline at the state of water free is analyzed. The calculation equations are given and identified by field test.
分析了长输管道在无水状态下利用真空设备抽空所需时间的计算方法，给出了计算公式，并通过现场试验对其进行了验证。
Internal coating used in high pressure, large diameter and long distance gas pipeline has two main functions, one of them is anti corrosion and the other is drag reduction.
高压、大口径、长输天然气管道采用内涂层主要具有两大功能，一是防腐蚀，二是减阻。
Welding is an important element of the long-distance natural gas pipeline project. Welding quality affect the reliability and operational safety of the pipeline.
焊接是长输天然气管道工程中的重要环节，焊接质量关系着管道的使用可靠性和运行安全性。
Welding is an important element of the long-distance natural gas pipeline project. Welding quality affect the reliability and operational safety of the pipeline.
焊接是长输天然气管道工程中的重要环节，焊接质量关系着管道的使用可靠性和运行安全性。
应用推荐