Tank Container Insulation Foaming Structure to Prevent Leakage

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Solution Overview

Problem

Conventional tank container insulation methods, such as rock wool filling and PU board laying, fail to achieve optimal insulation, especially for higher insulation requirements, and foam insulation processes are complicated and prone to material leakage and deformation.

Innovation Solution

A tank container insulation foaming structure comprising a press molding module and a clamping fixation module, which includes a flat plate, arc plate, connection plate, fixed frame, and compression rods, forms a sealed foaming space for the insulation material, ensuring consistent insulation layer formation and preventing deformation during the foaming process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If foam insulation method is used for higher insulation requirements, then insulation performance is improved, but the foaming process becomes complicated and causes material leakage

Engineering Contradiction:

Improveinsulation performanceVSAvoidfoaming process complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The foaming process is divided into distinct stages: preparation stage (installing mold and clamping device), foaming stage (injecting foaming agent), and curing stage (removing mold). This segmentation simplifies each individual stage while achieving the overall insulation goal, reducing process complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The clamp device is installed and adjusted before the foaming process begins, establishing proper positioning and clamping force in advance. This preliminary action prevents material leakage during foaming and eliminates the need for complex real-time adjustments during the foaming process.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If foaming material is used for higher insulation, then insulation effect is improved, but intense reaction lifts and damages the mold causing leakage

Engineering Contradiction:

Improveinsulation effectVSAvoidmold integrity

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The clamp device applies counteracting clamping force to balance the upward lifting force generated by the expanding foaming material. This counterforce prevents mold deformation and damage, maintaining mold integrity throughout the intense foaming reaction.

Inventive Principle:

Principle #8Anti-weight (Counterweight)

Solution Approach 2:

The clamp device is positioned and adjusted before foaming begins, providing structural support and restraint to the mold in advance. This beforehand cushioning prevents the mold from being damaged by the intense foaming reaction, ensuring both insulation effect and mold integrity.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Ease of manufacture

If rock wool filling is used for conventional insulation, then process simplicity is maintained, but insulation performance is insufficient for higher requirements

Engineering Contradiction:

Improveprocess simplicityVSAvoidinsulation performance

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The manual rock wool filling process is replaced with an automated foaming process where liquid foaming agent is injected and expands in situ. This substitution maintains operational simplicity while dramatically improving insulation performance, as the foam conformally fills the insulation space and cures to form a solid insulating layer.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution provides enhanced insulation by forming a consistent insulation layer that matches the tank container end caps, while simplifying the foaming process and preventing material leakage and deformation, thus achieving superior insulation results.

Implementation Method 1

a foaming space is formed between the arc plate and the tank container... the foaming space has an insulating layer formed by the foaming material

Methodology Applied

Scientific EffectFoaming reaction: Phase Change

Implementation Method 2

a compression rod for fastening the fixed frame... the fixed frame is connected to the press molding module and fastens the fixing frame to the tank container by the compression rod

Methodology Applied

Scientific EffectMechanical fastening: Mechanical Force

Data Source

PatentUS12623419B2Insulation foaming structure and method for a tank container

Publication Date: 2026.05.12 NANTONG TANK CONTAINER CO LTD

AI summary

A tank container insulation foaming structure comprising a press molding module and a clamping fixation module for securing the press molding module; the press molding module comprises a flat plate that connects with the tank container, an arc plate provided on the flat plate, and a connection plate for connecting the flat plate with the arc plate; a foaming space is formed between the arc plate and the tank container; the clamping fixation module comprises a fixed frame for securing the flat plate, a compression rod for fastening the fixed frame, and connecting components that connect the compression rod with the tank container; the fixed frame is connected to the press molding module and fastens the fixing frame to the tank container by the compression rod, the compression rod is connected to the tank container through connecting components; the foaming space has an insulating layer formed by the foaming material.