Seamless tubesfor the transport of fluids
A fluid tube is a steel tube with a hollow cross section, end to end, without welds. Steel pipe has a hollow section and is widely used as a fluid transportation pipe to transport oil, natural gas, gas, water and certain solid materials. Compared with solid steel, such as round steel, steel pipe is lighter when the bending and torsional strength are the same. and steel scaffolding used in building construction.
Fluid pipe is a pipe specially used to transport medium with fluid properties. In addition to liquid media such as water, oil and solution, solid media such as cement, grain and pulverized coal can also flow under certain conditions.
Fluid pipes can be made of steel, non-ferrous metals such as copper, titanium, or even non-metallic materials such as plastics. The fluid pipe must have a hollow section, but can also be square, triangular or any other shape. Some equipment is limited by conditions and must use rectangular pipe, but most of them still use round pipes. The circular tube has the smallest circumference/area ratio of all geometric sections, that is, the largest interior section can be obtained with the same amount of material.
use
(1) General boiler tubes are mainly used to make water wall tubes, boiling water tubes, superheated steam tubes, superheated steam tubes for locomotive boilers, large and small smoke tubes and arch brick tubes. , etc.
(2) High pressure boiler tubes are mainly used to make superheater tubes, reheater tubes, gas guide tubes, main steam tubes, etc. of high and ultra-high pressure boilers.
However, round tubes also have certain limitations. For example, under the plane bending condition, round tubes are not as strong as square and rectangular tubes.
Some agricultural machinery skeletons, steel and wood furniture, etc., are commonly used. Special-shaped steel pipes with other cross-sectional shapes are also required according to different purposes.
1. Seamless steel pipe for fluid transportation (GB/T8163-2008) is a general seamless steel pipe used to transport fluids such as water, oil and gas.
