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Vaulted steel storage tank combined dome reticulated shell

A steel storage tank and combined technology, which is applied in the field of combined dome reticulated shells of vaulted steel storage tanks, can solve the problems of poor structural stability of reticulated shells and inconsistent performance of shell components, so as to improve the safety and stability factor and achieve good technology effect of effect

Active Publication Date: 2017-05-10
SINOPEC SHANGHAI ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is that when the self-supporting steel storage tank vault top cover in the prior art adopts a single-layer dome reticulated shell, the stability of the reticulated shell structure is poor, and the shell under the two working conditions of positive and negative pressure in the tank To solve the problem of inconsistency in the performance of components, a new composite dome reticulated shell for vaulted steel storage tanks is provided

Method used

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  • Vaulted steel storage tank combined dome reticulated shell
  • Vaulted steel storage tank combined dome reticulated shell

Examples

Experimental program
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Effect test

Embodiment 1

[0024] The structure of the combined dome reticulated shell of a vaulted steel storage tank is as follows: figure 1 , figure 2 shown. The diameter of the storage tank is 42 meters. The combined dome reticulated shell of the vaulted steel storage tank is spherical as a whole. It is composed of 8 single trusses 5 in space according to the spherical combination. The single trusses 5 are scattered along the center of the spherical surface. The included angle of each single truss 5 is 45°, and one end of each single truss 5 is connected with the spherical center of the reticulated shell, and the other end is connected with the top of the storage tank wall. Two circles of truss connecting rods 3 are provided for connecting each single truss 5 .

[0025] Single truss 5 is composed of upper chord 9, lower chord 7, and web 8. The planar structure of single truss 5 is shuttle-shaped. The calculation mode of single truss 5 is compression-bending member. The upper chord 9 of single tru...

Embodiment 2

[0031] According to the conditions described in Example 1, only the number of single trusses 5 is 12, the angle between two adjacent single trusses 5 is 30°, and the longest distance between the upper chord 9 and the lower chord 7 is 1.6 Meter. The arrangement of the web bars 8 is vertical.

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Abstract

The invention relates to an arch crown steel storage tank combination type dome net shell. The problems that in the prior art, when a single-layer dome net shell is used in a self-supporting-type steel storage tank arch crown top cover, net shell structure stability is poor, and under the two working conditions of positive pressure and negative pressure in a tank, shell body component capacity exertion is not consistent are mainly solved. According to the arch crown steel storage tank combination type dome net shell, the whole arch crown steel storage tank combination type dome net shell is a spherical surface and is formed by at least four single trusses (5) in a combining mode in a space according to the spherical surface, the single trusses (5) are arranged along the center of the spherical surface in a distributed mode, one end of each single truss (5) is connected with the spherical surface center of the net shell, the other end of each single truss (5) is connected with the top end of the tank wall of a storage tank, each single truss (5) comprises an upper chord (9), a lower chord (7) and a web member (8), the problems are well solved according to the technical scheme that the plane structure of each single truss (5) is in a shuttle shape, and the arch crown steel storage tank combination type dome net shell can be used in the arch crown steel storage tank.

Description

technical field [0001] The invention relates to a combined dome reticulated shell of a vaulted steel storage tank. Background technique [0002] Steel storage tanks are special storage and transportation equipment widely used in chemical, petrochemical and other industries. There are four kinds of storage tanks, among which the floating roof storage tank and the sleeve roof storage tank have no fixed roof, and the momentless storage tank has a momentless catenary roof with a column in the middle. Although it has a roof, it does not belong to the classification Fixed roof storage tanks. [0003] Fixed-roof storage tanks are also called arch-roof storage tanks, and their roofs are generally divided into three types: cone-roof, vault-roof and self-supporting umbrella. Among them, the conical top tank roof is a conical top whose shape is close to the surface of a regular cone. If a column is set under the center of the conical top, it is a supported type, otherwise it is a sel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B7/10E04H7/04
Inventor 何国富
Owner SINOPEC SHANGHAI ENG