直缝焊管好还是螺旋焊管好：直缝焊管的先进性与优越性
直缝焊管好还是螺旋焊管好：直缝焊管的先进性与优越性煤浆和矿浆输送管道要求采用直缝焊管。管道输送呈“浆糊”的煤和矿粉是向上的方向，由于螺旋焊管内焊缝余高是螺旋线，对煤浆阻力大，管道需要较大的壁厚，所以倾向于采用直缝焊管。From another point of view due to the difficulty of butt welding of pipelines in the ocean the ovality alignment groove protection and cross-section error of the steel pipe are required to be high otherwise the operation efficiency will be seriously affected. Therefore compared with the spiral welded pipe th
近年来，世界上大多数油气管道都要求使用直缝焊管。加拿大等西方发达国家改进螺旋焊管的工艺，如预焊、精焊、多丝焊接和机械扩径等，都是参照直缝埋弧焊管技术设计的，体现了直缝焊管控制技术的先进性和优越性。具体来说:
In recent years most oil and gas pipelines in the world require the use of straight seam welded pipes. Canada and other western developed countries improve the process of spiral welded pipe such as pre-welding precision welding multi-wire welding and mechanical expansion etc. are designed with reference to the technology of longitudinal submerged arc welded pipe which reflects the advanced nature of longitudinal welded pipe control technology and superiority. Specifically:
从适合海上油气输送的角度出发，必然要建设直缝焊管，目前，世界上有相当一部分油气资源埋藏在海洋中。从未来的天然气开发来看，它们主要以“可燃冰”的形式埋藏在海洋中。目前公认的“可燃冰”的总能量是所有煤、油、气的2~3倍，在中国也是如此，将是未来的主要能源。
From the perspective of being suitable for offshore oil and gas transportation it is necessary to build straight seam welded pipes. At present a considerable part of the world's oil and gas resources are buried in the ocean. From the perspective of future gas development they are mainly buried in the ocean in the form of "combustible ice". It is currently recognized that the total energy of "combustible ice" is 2 to 3 times that of all coal oil and gas and the same is true in China. It will be the main energy source in the future.
近期，中国正在加快东海油气的步伐。随着石油开采向海洋深处发展，海底管道在压力、冲击和弯曲力的共同作用下被压扁，这是螺旋焊管的薄弱环节。为了提高管道输送能力，使海底管道向厚壁方向发展，海底管道多采用直缝焊管。
Recently China is accelerating the pace of oil and gas in the East China Sea. With the development of oil extraction to the depths of the ocean the submarine pipeline is crushed under the combined action of pressure impact and bending force which is the weak link of the spiral welded pipe. In order to improve the pipeline transportation capacity and make the submarine pipeline develop in the direction of thick wall the submarine pipeline mostly adopts the straight seam welded pipe.
从另一个角度来说，由于海洋中管道对接焊接难度大，要求钢管的椭圆度、对中度、坡口保护情况以及横断面误差等要求较高，否则会严重影响作业效率。因此，与螺旋焊管相比，直缝焊管的尺寸精度更高，补焊更容易。所以从这个方面来说，直缝焊管也是首选。
From another point of view due to the difficulty of butt welding of pipelines in the ocean the ovality alignment groove protection and cross-section error of the steel pipe are required to be high otherwise the operation efficiency will be seriously affected. Therefore compared with the spiral welded pipe the dimensional accuracy of the straight seam welded pipe is higher and the repair welding is easier. So from this aspect the straight seam welded pipe is also the first choice.
煤浆和矿浆输送管道要求采用直缝焊管。管道输送呈“浆糊”的煤和矿粉是向上的方向，由于螺旋焊管内焊缝余高是螺旋线，对煤浆阻力大，管道需要较大的壁厚，所以倾向于采用直缝焊管。
Coal slurry and ore slurry pipelines require straight seam welded pipes. Coal and mineral powder are transported in the "slurry" state in the upward direction. Since the welding seam in the spiral welded pipe is a spiral the resistance to the coal slurry is large and the pipeline needs a larger wall thickness so straight seams tend to be used. Welded pipe.
好了，以上就是直缝焊管的先进性和优越性。如果想了解更多，欢迎随时关注我们。我们会有专业人员为您服务 感谢各位的支持。
Well the above is the advanced nature and superiority of the straight seam welded pipe. If you want to know more please feel free to follow us. We will have professionals at your service thank you for your support.
