summarize

Welding engineering of storage tank is common, especially the welding requirements of large storage tank are strict. Here, taking large vertical storage tank as an example, the operation process and welding skills of welding engineering of storage tank are briefly introduced.

Vertical cylindrical tank is a vertical tank composed of a circular tank wall with a central axis perpendicular to the ground, a flat disc-shaped tank bottom and a different form of tank top. It is composed of a vertical tank, accessories (such as ladders, platforms, etc.) and accessories (such as liquid level measurement, fire fighting facilities, etc.).

Tank foundation

The storage tank foundation is the place where the storage tank is placed, and it is required to be strong and firm.  It not only affects the appearance, but also leads to uneven stress in storage tanks.  The foundation of storage tank belongs to the category of civil construction and must be in accordance with the requirements of foundation construction drawings and technical standards.  The foundation of the storage tank must be checked before installation and can be installed only after it is qualified.

Prepared Assembly

For large vertical storage tanks manufacturing, general division of precasting, and combination, and then final assembly, is very helpful for improving production efficiency, first of all to build tanks chosen materials and accessories for the reinspection, prefabricated assembly include: floor, wall panels, floating roof and inner floating roof, fixed roof, wind ring, reinforcing ring, package edge Angle steel components, parts, etc.

Welding of storage tanks

For the type of steel used for the first time, according to the steel number, plate thickness, welding method and welding material, etc., according to the current national standards for process evaluation, in order to determine the appropriate welding process.  The butt weld specimens and t-fillet weld specimens were used for welding process evaluation, among which the butt weld specimens were tensile test and transverse bending test.