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Container Are Stored In Different Ways
Ningbo Wanma Plastics Co.,Ltd | Updated: Oct 26, 2017

The main manufacturing process of the type Groove wound pressure vessel is the main manufacturing process of the type Groove belt type pressure vessel. On the winding machine, the steel belt is heated to the red-hot state, then the steel band is pressed into a spiral groove machined on the inner cylinder surface to make it mesh with each other.Container 

After each round of steel strips, then around the next layer, until the desired thickness of the cylinder. The structure is characterized in that the steel belt layer is engaged in a part of the axial force of the container, and there is no annular weld through the whole wall thickness, and the safety is high. The disadvantage of this structure is the need to use special rolling groove steel strips and special-purpose machine tools.Container

The flat ribbon-wound pressure vessel adopts a special winding method to ply the flat steel belt without grooves around the inner cylinder, so that the flat steel belt layer on the cylinder body can withstand axial force. The thickness of the inner cylinder is thinner than the inner tube of the belt type pressure vessel, and the grooves on the outer surface of the inner cylinder are not machined with a large machine tool. The flat steel belt pressure vessel is one of the first high-pressure vessels in China and has been widely used in the small chemical fertilizer industry in China.Container

Some industrial processes should be carried out under the pressure of more than 100 MPA, such as the production of polyethylene and man-made crystals by high-pressure method. At this time, because the wall thickness of the pressure vessel used is very large, when the diameter ratio of the container (the ratio of the diameter to the inside diameter) increases to more than 1.5, the stress on the cylinder wall along the thickness distribution is very uneven, the tangential stress and the radial stress of the inner wall will be much higher than the outer wall, and the inner wall will yield prematurely when the vessel has not yet reached the working pressure. Therefore, the prestressing force is often adopted to make the inner wall of the container have a larger compressive stress, so as to improve the pressure on the cylinder wall.Container

Heat-jacketed containers can be used on the structure, controlling the interference of the heat sleeve to achieve the required compressive stress of the inner wall, and the filament structure can be used to wrap the outer layer of the inner cylinder to control the tensile stress of the high-strength steel wire, so that the inner wall gets the desired compressive stress.Container


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