A slidable support structure suitable for liquid natural gas pipelines

Abstract

The invention discloses a slidable support structure suitable for a liquefied natural gas pipeline in order to solve the problems that the joint between a liquefied natural gas pipeline and a supportis likely to get rusty and axial contraction and sliding of the pipeline are affected. The slidable support structure comprises the liquefied natural gas pipeline, a positioning frame, a supporting base and a base fastened on a ship body. The positioning frame is of an inverted-U-shaped structure and covers the liquefied natural gas pipeline. The two ends of an opening of the positioning frame areboth fastened and connected to the supporting base. The supporting base is connected with the base. The position, corresponding to the positioning frame, of the outer wall of the liquefied natural gas pipeline is connected with a hoop. Arc-shaped sliding cushion blocks are mounted on the left sidewall, the right sidewall and the upper sidewall of the hoop correspondingly. A supporting block is mounted on the lower sidewall of the hoop. The sliding cushion blocks are arranged between the hoop and the positioning frame. The sliding cushion blocks are all attached to the positioning frame. A base plate is connected to the supporting base. The supporting block is supported on the base plate. The sliding cushion blocks and the base plate belong to plastic parts.

Description

Technical field [0001] The invention relates to a liquid natural gas transportation technology, more specifically, it relates to a slidable support structure suitable for liquid natural gas pipelines. Background technique [0002] The LNG pipeline will shrink and deform when the temperature changes. When there is no medium in the pipeline, the highest temperature can reach +40 degrees Celsius. When the pipeline is filled with liquid natural gas, the lowest temperature can reach -163 degrees Celsius. Therefore, the pipeline will deform due to the large temperature difference, and the maximum axial deformation can be Up to tens of millimeters, relative displacement occurs between the pipeline and the support, so the connection between the pipeline and the support is sliding. The traditional sliding bracket adopts a metal-to-metal sliding form. If it is not used for a long time or is rusted, it will affect the sliding of the pipeline, and cause the pipeline to rupture in severe cas...

AI Technical Summary

Problems solved by technology

[0003] The first object of the present invention is: to overcome the problem that the connecting position between the liquid natural gas pipeline and the bracket is easy to rust, which affects the axial shrinkage and sliding of the pipeline; the second object of the invention is: to overcome the deformation of the support position of the hull When a deviation occurs, it is difficult to observe with the naked eye, and it is inconvenient to adjust the support height of the pipeline; Rust, the axial shrinkage and sliding of the pipeline is convenient and reliable; when the support position of the hull is deformed and there is a deviation in the support height of the pipeline, it can be clearly observed, and the support height of the pipeline can be adjusted in time, and the adjustment operation is convenient

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