Plywood anchoring method and anchoring structure

By using polyurethane panels and insulation box plywood in the tank structure, combined with pre-positioning and end adjustment of the intermediate connector components, the problem of mechanical stability failure of traditional tank anchoring structures under low-temperature shrinkage and liquid cargo sloshing is solved, and stable connection and sealing of multi-layer panels are achieved.

CN120426299BActive Publication Date: 2025-09-05SINOTECH ENERGY CO LTD
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Patent Information

Application Number
CN202510920492.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-04
Publication Date
2025-09-05
Estimated Expiration
2045-07-04

AI Technical Summary

Technical Problem

Traditional tank anchoring structures use a single bolt penetrating multiple layers of plate material for fixation, which results in uneven load distribution under low-temperature shrinkage and liquid cargo sloshing conditions, leading to mechanical stability failure and increasing the risk of cracking of the main shielding film.

Method used

The polyurethane plate is embedded with the plywood of the insulation box, the anchor connecting plate is fixed by rivets, and the intermediate connector assembly is used for pre-positioning and assembly. The secondary corrugated plate is welded to the anchor connecting plate, and the main plywood and the main layer of corrugated plate are laid in sequence. The intermediate connecting assembly is adjusted to be flush at the end through fusing treatment or multi-stage gasket compensation to form a sealed and stable connection.

Benefits of technology

The sealing, positioning accuracy and anchoring stability of the multi-layer plate are achieved, avoiding the displacement caused by single-point fixation and fixation failure caused by different material shrinkage coefficients, reducing the risk of cracking and improving the mechanical stability of the tank structure.

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Abstract

The embodiment of the present application provides a plywood anchoring method and anchoring structure, which relates to the technical field of plywood anchoring. The plywood anchoring method includes the following steps: S1 placing a polyurethane plate body above the plywood under the insulation box, aligning the polyurethane plate body with the embedded holes of the plywood on the insulation box, embedding and installing the anchor plate in the embedded holes, and fixing the anchor connecting plate to the surface of the plywood on the insulation box by rivets; S2 screwing the intermediate connector assembly into the assembly screw groove opened on the surface of the anchor plate for pre-positioning assembly. This solution avoids the displacement problem caused by single-point fixation by limiting the position of the multi-layer plate. This fixing method uses a through-hole design of the multi-layer plate to avoid cracking at the step in the stepped hole and fixation failure caused by different shrinkage coefficients of different materials.
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