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Manufacturing method of low-temperature liquid storage tank

A technology for cryogenic liquids and manufacturing methods, applied in the direction of container filling methods, gas/liquid distribution and storage, equipment for loading into pressure vessels, etc.

Inactive Publication Date: 2004-11-10
闻建芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for manufacturing a low-temperature liquid storage tank by using the flip-chip method, which does not require long-term crane cooperation, reduces the influence of the weather on the construction of the thermal insulation structure and the welding of the inner container, and eliminates the need for high-altitude operations. unfavorable factors

Method used

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  • Manufacturing method of low-temperature liquid storage tank
  • Manufacturing method of low-temperature liquid storage tank
  • Manufacturing method of low-temperature liquid storage tank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] figure 1 The cryogenic liquid storage tank shown is installed using the following method:

[0018] ① Set 0°, 90°, 180° and 270°, 360° axes and center points on the foundation cap 10, make obvious marks, and use them as benchmarks to guide the laying of the bottom plate in the future, and as the positioning and positioning of the escalator 11 Basis for nozzle orientation.

[0019] ② Lay the bottom plate 7 of the shell, draw the position diagram of each bottom plate on the plane of the foundation cap 10, hoist it in place in sequence, measure the size and position of the anchor belt of the inner cylinder, draw and open holes on each bottom plate. Weld the bottom plate 7 of the shell. After welding, the maximum swelling deformation cannot exceed 2.5cm, and the vacuum leak test of the bottom plate 7 of the shell should be done. The gap under the shell bottom plate 7 is filled with expansive cement by the pressure grouting method. After inspection, there is no void phenome...

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PUM

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Abstract

The invention discloses a low-temperature liquid storage tank making method, including case installation and inner tube installation. First install the case: weld the first wall plate on the top of the case, install case top cap on the top of the first wall plate, lift the first wall plate, install the second wall plate by the above method, weld the first and second wall plate around seam and lift them. on the analogy of this, from top to bottom, weld the rest wall plate, and finally weld the bottom and the bottom plate. The method of inner tube installation is basically identical with that of the case installation. The case plays a role in screening and shielding wind and rain to benefit inner tube installation, largely heightening welding quality and playing a role in moistureproofing. It eliminates high-altitude work.

Description

technical field [0001] The invention relates to a method for manufacturing a cryogenic liquid storage tank. Background technique [0002] With the increase in domestic air separation unit installation business in recent years, the supporting cryogenic liquid storage and transportation equipment has also developed rapidly, greatly expanding the application field of cryogenic technology, from small vacuum insulation storage equipment to large cryogenic liquid storage tanks , The commonly used storage tanks manufactured by on-site assembly have a volume of 100 cubic meters to 2000 cubic meters. [0003] Cryogenic containers mainly store low-temperature liquid substances, such as liquid oxygen, boiling point: -182.93°C; liquid argon, boiling point: -185.86°C; liquid fluorine, boiling point: -188.12°C; liquid nitrogen, boiling point: -195.8°C; Low, which requires the storage tank to have a good cold and heat insulation structure. Its structural composi...

Claims

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Application Information

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IPC IPC(8): F17C5/02
Inventor 吕建群
Owner 闻建芳
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