1, strengthen the circle
Under the same load, the FRP material has a greater deformation than the steel, which means that in the planning of the same rigidity, the thickness of the FRP data is greater than that of the steel. Thickness addition will not only bring difficulties to glass fiber storage tank molding technology, but also significantly increase production costs. This problem is more prominent in tank planning, and strengthening the circle is one of the effective ways to solve the difficult position.
Because it can be arranged outside the cylinder and the tank body, it is obvious that the inside of the barrel and the tank are well set up, regardless of the beauty or strength. Reinforcing rings are usually made of rigid polyvinyl chloride (HPVC) or direct material, surface treatment shall be carried out, and two materials must be closely bonded to the cylinder and tank to make the best addition.
2 saddle support
Horizontal storage tank for bearing and fixed needs should be added bearings, for medium and small storage tank, mostly choose two saddle shaped bearings, the effect is the same as the lifting beam. However, when there is some contact with the storage tank and the bearing has the effect of the cylindrical shell, the stress of the shell increases significantly. The strengthening of the ring should be considered according to the formula and the diagram.
3, head
The heads of FRP tanks are hemispherical, semi ellipsoid and saucer shaped. Under normal circumstances, for construction convenience, the cylinder body and head can be molded separately, until a certain thickness, and then paste all paste system. Because of the change of the curvature of the connecting outer diameter, the stress should be added when the reinforcement is eliminated.