Gasholder pillow type piston

Abstract

The invention discloses a gasholder pillow type piston, which comprises a spherical surface type piston plate, a lower support truss, upright posts, a support truss, a piston side wall plate, an upper support truss and a middle support truss, wherein the lower support truss is arranged on the piston plate and is matched with the shape of the piston plate, the upright posts are in parallel arrangement along the edges of the piston plate, the support truss is used for connecting the adjacent upright posts, the piston side wall plate is arranged on the upright posts, the upper support truss is arranged at the upper end of the upright posts, and the middle support truss is connected with the upper support truss and the lower support truss. The gasholder pillow type piston has the advantages that the lower support truss is arranged on the piston plate, the upper ends of the upright posts are also provided with the upper support truss, and the middle support truss is also arranged between the upper support truss and the lower support truss, so the rigidity and the intensity of the piston are greatly enhanced, the lateral stress capability of the piston is higher, the design dimensions of the diameter and the height of the piston can be increased, the volume of a gasholder can be improved, and the requirement of the modern production is met.

Description

technical field [0001] The invention relates to a gas cabinet component, in particular to a gas cabinet piston. Background technique [0002] The gas tank is a steel container for storing industrial and civil gas, and there are two types of wet gas tank and dry gas tank. The wet gas tank is a simple cylindrical structure sealed with water; the dry gas tank is a piston structure sealed with thin oil or rubber membrane. [0003] Gas cabinets sealed with rubber membranes, also known as Wiggins cabinets, are sealed with leather bags formed by rubber membranes. The rubber mold has great plasticity, and its piston running speed can reach more than 5m / min. This is the dry oil seal. It cannot be achieved by other gas cabinets except Kolon type gas cabinets. In addition, the temperature of the rubber membrane is higher than that of thin oil, and it is not afraid of dust. Compared with other types of gas holders, it has many advantages. But this gas holder is used as the special ga...

AI Technical Summary

Problems solved by technology

We use an 80,000 m 3 ~100,000m 3 For example, if the diameter of the gas holder is determined according to the traditional diameter of 58m, the length of the rubber membrane in the height direction of the gas holder cylinder is generally 15m~16m, and the height of the piston will reach about 17~18m. The side and bottom are subjected to uniform positive pressure, and the working pressure on the side of the piston can reach more than 10kPa (a pressure of more than 1 ton per square meter). Such a high working pressure acts on such a high side wall of the piston, which may easily cause the side of the piston to yield and become unstable. , low job security and stability

Since the problem of piston stiffness cannot be solved, most of the one-stage rubber membrane gas holders in the prior art are small-volume gas cabinets; however, small-volume gas cabinets cannot meet the needs of modern production

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