Thin film structure of liquefied natural gas storage tank and liquefied natural gas storage tank
By incorporating spherical corrugations and connecting corrugations into the corrugated plate of the membrane storage tank, the design achieves simple molding and improved stability of the corrugated plate, solving the problems of complex structure and high cost of existing membrane corrugated plates, and reducing production costs and process complexity.
CN121993723APending Publication Date: 2026-05-08CHINA GASOLINEEUM PIPELINE ENG CORP +2
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA GASOLINEEUM PIPELINE ENG CORP
- Filing Date
- 2024-11-08
- Publication Date
- 2026-05-08
AI Technical Summary
Technical Problem
Existing thin-film corrugated sheets have complex structures, are difficult to form in one piece, have high costs, and are difficult to process, which can easily lead to defective products.
Method used
The design features a spherical corrugation at the center of the substrate and multiple connecting corrugations around the perimeter. The corrugated plate unit is formed by a single stamping process, and a transition section is provided at the connection point to achieve a smooth transition, simplifying the production process.
Benefits of technology
It reduced production costs, improved processing efficiency, met the fatigue life requirements of the storage tank during its service life, and enhanced the stability and stress characteristics of the structure.
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Smart Images
Figure CN121993723A_ABST
Abstract
The invention discloses a liquefied natural gas storage tank film structure and a liquefied natural gas storage tank, and belongs to the technical field of liquefied natural gas storage. The liquefied natural gas storage tank film structure comprises a plurality of corrugated plate units which are connected with one another; the corrugated plate unit comprises a base plate, and spherical corrugations and connecting corrugations are formed on the base plate; the spherical corrugation is located in the center of the base plate, the multiple connecting corrugations are located on the periphery of the spherical corrugation, one end of each connecting corrugation is connected and communicated with the spherical corrugation, and the other end of each connecting corrugation extends to the edge of the base plate; every two adjacent corrugated plate units are connected in an edge-to-edge mode, and every two connecting corrugations at the joint are connected and communicated. The liquefied natural gas storage tank film structure has enough deformability, can meet the strength requirement and the fatigue life standard, is simple in overall structure, can be formed through one-time punch forming, simplifies the production process and is suitable for batch production.
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