Construction method of tank wall of oil tank

A construction method and oil storage tank technology, which are applied in the field of crude oil storage tanks, can solve the problems of difficulty in ensuring construction quality and speed, insecure construction safety, inconvenience in construction, etc., so as to shorten the construction period, reduce construction procedures and construction procedures. reduced effect

Inactive Publication Date: 2011-08-24
CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

This construction method has a long construction period, and the welding and assembly needs to be carried out on the scaffold as the height increases, which is inconve...

Method used

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  • Construction method of tank wall of oil tank
  • Construction method of tank wall of oil tank
  • Construction method of tank wall of oil tank

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] See attached figure 1 , attached figure 2 And attached image 3 , a construction method for the wall panels of an oil storage tank, which adopts the inversion method, that is, firstly install the topmost wall panels, and finally install the bottommost wall panels, and lift by means of an inverted chain lifting device, the steps of the method include:

[0022] 1) After the inspection of the tank bottom is qualified, draw a large circle on the tank bottom plate 3 according to the design diameter of the wall plate, and assemble and weld a section of 300mm long No. To control the diameter of the tank body of the oil storage tank, a 80×60×10mm baffle is welded on the channel steel to reinforce the channel steel.

[0023] 2) Assemble the first wall panel (counting from top to bottom, i.e. the top wall panel): first hoist the pre...

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Abstract

The invention discloses a construction method of a tank wall of an oil tank. An inverse method is employed in the construction of the tank wall. The method comprises the steps of: marking a circle on a tank base plate, with a diameter being equal to that of the tank wall and arranging a channel steel and a baffle plate on the tank base plate; assembling a first ring wall plate, arranging an expansion ring back rod below the first ring wall plate and coupling and welding an edge angle iron of the first ring wall plate; mounting a tank top; uniformly disposing lifting pillars on the tank base plate and connecting each lifting pillar with a central umbrella post through a transverse pull bar for fixation; mounting a second ring wall plate, including the steps of firstly placing the second ring wall plate on the outside of the first ring wall plate for assembly, welding a longitudinal seam of the second ring wall plate, coupling and welding a circular seam between the first ring wall plate and the second ring wall plate, taking off the expansion ring back rod after the welding and arranging the back rod on the second ring wall plate; assembling each ring wall plate at the upper part in a successive manner according to the previous step; and finally coupling and welding a bottom ring wall plate and a tank bottom plate. The construction method of the invention not only improves construction efficiency but also effectively enhances construction quality.

Description

technical field [0001] The invention relates to the technical field of crude oil storage tanks, in particular to an upside-down construction method for tank walls of oil storage tanks. Background technique [0002] At present, the installation of large-scale oil storage tank wall panels adopts the formal installation method of external scaffolding. Manufacturing and Installation Technology". It discloses a tank wall installation method: set up a positive ring scaffold along the circumference of the tank wall at 1200mm below the ring seam of the wall plate, and use it as an installation and operation platform for the upper wall plate to carry out the overall assembly and welding of the tank body. For the processing of the inner bead, a welding trolley is used. This construction method has a long construction period, and the welding and assembly needs to be carried out on a scaffold as the height increases, which is inconvenient for construction, and it is difficult to ensur...

Claims

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Application Information

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IPC IPC(8): E04H7/02E04H7/04
Inventor 李敏红曹星星张世伦张彦芳姜典僧
Owner CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
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