Circular tube type laser welded sandwich plate explosion-proof wall

Abstract

The invention discloses a circular tube type laser welded sandwich plate explosion-proof wall. The circular tube type laser welded sandwich plate explosion-proof wall comprises a sandwich plate explosion-proof wall body and a supporting structure body, and the sandwich plate explosion-proof wall body is mounted on a module truss of the upper of a target platform through the supporting structure body; the sandwich plate explosion-proof wall body comprises a first panel, a second panel and a sandwich layer, and the sandwich layer is formed by a plurality of circular tube which are arranged vertically and paralelly; the first panel and the second panel are correspondingly arranged on the two sides of the sandwich layer, the first panel serves as an explosion facing face, and the second panelserves as an explosion backing face; and the first panel and the second panel are correspondingly connected with each circular tube in the sandwich layer in a laser welded mode. The sandwich layer ofthe explosion-proof wall body has the characteristics of being high in specific energy absorption, low in first peak crumpled load and long in crumpled stroke so that the explosion-proof wall body canabsorb impact energy well; and meanwhile, the first panel and the second panel are arranged on the two sides of the sandwich layer, so that the explosion-proof wall body has the characteristics of being large in in-plane bending rigidity and high in specific strength, and the explosion-proof capability of the explosion-proof wall body can be further improved.

Description

technical field [0001] The invention relates to an explosion-proof wall for an offshore oil and gas platform, in particular to a round-tube type laser-welded sandwich plate explosion-proof wall. Background technique [0002] The ocean is rich in oil and gas resources. Offshore platforms are one of the main equipment for drilling and production of offshore oil and gas resources. Different from onshore oil and gas exploitation, the offshore operating environment is harsh and the space of offshore platforms is limited, making oil and gas exploration and processing on platforms difficult. Equipment such as oil and gas leakage is densely arranged, and the probability of oil and gas leakage is high. Fires and explosions caused by oil and gas leakage will cause disastrous consequences such as casualties, marine environmental pollution, and property losses. Units, etc. attach great importance to it. Explosion-proof walls are one of the main measures to reduce the consequences of ex...

AI Technical Summary

Problems solved by technology

[0003] Explosion-proof walls are used more and more in offshore platforms. At present, the main form is corrugated plate or reinforced plate explosion-proof wall. The explosion-proof wall structure is used as a "sacrificial" structure, which absorbs the impact energy of the explosion through plastic deformation; however, the corrugated plate explosion-proof wall There are deficiencies such as large plastic deformation, complicated connection with surrounding structures, and low energy absorption efficiency, which prompts the development of new lightweight explosion-proof walls to improve the safety of offshore platforms

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