Arch-top storage tank with reticulated shell

Abstract

The invention belongs to the field of oil and gas storage and transportation and particularly relates to an arch-top storage tank with a reticulated shell. The arch-top storage tank with the reticulated shell comprises a tank wall, an arch top, a backing plate, a ring plate, ribbed plates and a guardrail. The ring plate is flush with the top end of the tank wall, surrounds the tank wall one circle and is welded with the same. The ribbed plates are uniformly arranged at the bottom of the ring plate along the circumferential direction of the tank wall, and the ribbed plates, the ring plate and the tank wall are welded. The backing plate is arranged on the top surface, corresponding to the ribbed plates, of the ring plate. The arch top is composed of a tank top reticulated shell structure and a cover paved above the reticulated shell, and is supported on the backing plate through a tank top reticulated shell structure support, and the cover is welded with the top end of the tank wall. The guardrail is arranged at the outer edge of the upper portion of the ring plate. Compared with the prior design, bearing area on the top of the tank wall can be enlarged, binding strength of the ring plate and the tank wall and safety margin of the top of the tank wall are improved, and great stress concentration on the top of the tank wall is avoided. The design of the arch-top storage tank is more humanized, and safety coefficient during maintenance and construction is improved.

Description

technical field [0001] The invention belongs to the field of oil and gas storage and transportation, and in particular relates to a storage tank with a reticulated shell vault; a novel tank wall top support structure increases the structural strength of the top of the reticulated shell vault storage tank wall and improves the safety factor of the vault operation . Background technique [0002] In the strategic reserve of national energy, the design and construction of large vaulted storage tanks is a crucial link. In order to save steel and its construction and maintenance costs, the large-scale storage tanks with vaulted roofs has become the main development trend, and as the volume of storage tanks increases, their diameters also continue to increase, so that the structural strength of the vaulted roof and the top of the tank wall Design is becoming more and more difficult. [0003] At present, the design method of storage tank vault mostly adopts reticulated shell struc...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the deficiencies of the existing design and the potential safety hazards in management and maintenance, the present invention provides a more complete large reticulated shell vault storage tank; based on the numerical simulation analysis of the mechanical properties of the vault tank and the on-site structural strength According to the test results, on the basis of not increasing the construction cost of the storage tank, the problem of reducing the deformation and stress of the top structure of the reticulated shell vault storage tank wall is solved, and the unevenness of deformation and stress concentration at the top of the tank wall are improved, and the storage tank is improved. Reliability of structural strength and safety of vault operation

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