大口径管道

论大口径管道水平定向钻穿越施工技术

Horizontally Directional Drilling Engineering of Big Inch Pipeline

针对大口径管道对接焊缝常规X射线检测劳动强度大、效率低的现状，我们研制了管内周向X射线检测机器人。

It has long been facing the welders that the routine X-ray detection for butt - welded pipe has a high labour intensity and low efficiency - To overcome above disadvantages , a detecting robot has been newly developed to undertake the X-ray periphery welding seam detection for welded pipelines .

插入式超声波流量计在供水大口径管道中的应用

Application of Bayonet Ultrasonic Flow Meter in Supplying Water Heavy-calibre Pipeline

大口径管道对接焊缝的超声波自动检测

Automatic Ultrasonic Inspection of Butt Weld of Large Diameter Pipeline

论大口径管道建设的六大关系及设计理念

Study on " Six-relationship " and Design Idea for Large-diameter Pipeline Construction

大口径管道管端坡口整形机

The Shape Modulating Machine of Large Diameter Pipeline Slope Orifice

大口径管道气体流量测量采用锥形流量计

Large Bore Pipe Gas Flow Measurement Using Cone Flowmeter

热煨弯管在大口径管道中的应用

The Application of Hot-bending Bend in Large Diameter Pipeline

大口径管道带水抢修

Recovery service of big - bore pipeline with water

大口径管道穿越河流方法研讨

Discussion on River Crossing of Large Diameter Pipe line

目前，高强度、长距离、大口径管道已成为输气管道的发展方向。

High strength , long distance , major diameter pipeline are the tendency .

大口径管道流量测量中的数据处理和通讯模块开发

Data Processing of the Big Calibre Pipeline Flow & Development of Communication Module

特殊地质条件下的大口径管道定向钻穿越施工技术

Construction Technology of Large Diameter Pipeline Crossing with Directional Drilling under Special Geological Condition

控制大口径管道防腐保温一步法作业偏心问题的做法

Tips on Controlling Shaft-eccentricity in Anticorrosion and Heat-insulation Construction of Large-diameter Pipeline by One-step Method

冶金行业大口径管道接管设计与分析

Design of Adapter Pipe for Large-Diameter Pipeline

大口径管道对接环焊缝相控阵超声检测系统的研制

Development of the Ultrasonic Phased Array Testing System for the Circular Butt Welds in Large Diameter Pipelines

热导式质量流量计适用于大口径管道、特定流量变化范围的流体的测量。

Heat conduction mass flowmeter is suitable for the big diameter pipeline and the flow measuring of big flow changing limite .

大多数施工队伍技术力量薄，施工经历不多，尤其对大口径管道，质量控制难度更大。

Most of the construction teams have poor technologyandlittle construction experience , especially for large diameter pipelines , quality control is more difficult .

采用新研制的仓式泵实现了大口径管道远距离高浓度输送煤粉。

High density conveying of pulverized coal over a long distance through big diameter pipe can be realized by using a newly developed bin pump .

但是，当在长距离、大口径管道进行伴热保温时，采用三相带比单相带更经济、更合理、更能显示使用三相带的优越型。

However , when applied to long-distance and big-diameter pipes , using of three-phase heating cable is more economic and reasonable and showing more advantage .

通过国内外情况对比，并考虑到中国的国情，对今后我国大口径管道建设中管径的选择方法提出了新的建议。

The statistical data about diameters and lengths of built and planned pipelines for transport crude oil , products and gas in China are analyzed .

本文简要回顾了我国油气管道穿越大型河流的发展历程，就大口径管道穿越河流技术进行了初步总结。

Reviewing the evolution of big river crossing of oil and gas transmission pipeline in our country , this paper makes a conclusion of the technique .

利用数显光栅传感器和计算机数据处理技术来检测大口径管道内径尺寸的光电设备。

In this paper , we introduces a photoelectrical device which use the charge-roast sensor and data processing technology with computer and measure inside diameter of bigger barrels .

这种大口径管道试水用堵水器的基本结构包括环绕支架设置的堵水气囊，支架上设置进水管或排气管。

The water-plugging device of large diameter tube used for water-finding comprises a water-plugging gas bag arranged circulating the frame , an inlet pipe or a discharge pipe is arranged in the frame .

近年来，我国的长距离、大口径管道输水工程快速发展，管道输水的排（进）气设计和排（进）气阀的规范生产问题应当引起重视。

In recent years , with quick development of the long distance water diversion projects using large diameter pipes , the regulated production of the air releasing ( or entering ) valves should be paid more attention .

热喷快固防腐涂料较其它防腐涂料性能优越，主要应用于管道大修、油罐内外防护及大口径管道内防腐等。

The hot-spraying and fast curing coating materials are advanced than others in the anti-corrosive performance , and suitable to renovate the corroded pipeline , and can protect internal / external oil tanks as well as internal large-diameter pipeline .

在野外大口径管道焊接中，下降外特性输出用于纤维素焊条电弧焊进行根焊；平特性输出用于超窄间隙自动焊填充及盖面。

In the field large diameter pipe welding , dropping external characteristic can be used for root welding by shielded metal arc welding , and constant voltage external characteristic can be used for fill and cap welding by ultra-narrow gas metal arc welding with constant wire feed speed .

大口径PCCP管道沿程水头损失计算探讨

Discussion on friction head loss calculation for large diameter PCCP

大口径UPVC管道的施工与维修

Installation and repairs of big size UPVC pipe

长距离大口径PCCP管道水压试验方法改进研究

Study on improvement of hydrostatic testing method for long-distance and super-large diameter PCCP pipeline