Steel Storage tank Used for storage of liquid or others, it is the indispensable important infrastructure in the area of oil,chemical,grain and oil, food, fire control,transportation,metallurgy ,national defense and other industries.
it is a kind of special equipment to store all kinds of liquid (or gas)and finished products.For many enterprises without storage tank cannot start normal production, especially the national strategic stockpiles are inseparable from the various capacity and types of storage tank.
vertical storage tank;
horizontal storage tank
Tank test and inspection
1) the tank welding quality inspection and test, in order to ensure the welding quality of tank installation, dealing with the oil tank on the weld appearance and internal quality inspection, adopt corresponding nondestructive flaw detection method and technical standards.NDT methods are: ultrasonic testing, radiographic, magnetic particle testing, penetration testing, etc.
2) tank leak test.Tank (including attachments) installed, should be in accordance with the requirements of design conditions and specifications of tank bottom, respectively, the tank wall, roof and accessories for leak test
3) the hydrostatic test tank.Hydrostatic test is to check the strength of the spherical tank, the inspection spherical tank assembly welding quality, to ensure that the spherical tank not able to design under pressure.After the water pressure overload, can improve the bearing capacity of the spherical tank.Despite the problems existing in the manufacturing, assembly and welding process after welding are strict inspection work, but residual defects may appear in hydraulic pressure test, so the water pressure test is also more important means of inspection.