Modular Anti-Sloshing Grid for Liquid Cargo Tanks

Solution Overview

Problem

Existing anti-sloshing solutions for liquid cargo in various vessels, such as fuel tanks and cargo tanks, are inadequate in preventing sloshing and are often cumbersome to install and dismantle, leading to structural damage and operational restrictions.

Innovation Solution

An anti-sloshing apparatus comprising buoyant members with open-cell foam structures and adjustable connecting members, forming a grid structure that can be easily assembled and disassembled, effectively floating on the liquid surface to minimize sloshing and absorb impact.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If rigid floats are arranged longitudinally in the container (as in DE-1 297 539), then sloshing is prevented, but the device becomes complex and difficult to install/dismantle

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The anti-sloshing device is divided into multiple independent modular units, each comprising a buoyant element, foam member, and connecting members. These modules can be independently installed and removed, transforming a complex single-piece structure into simple interchangeable components that maintain effectiveness while reducing installation complexity

Inventive Principle:
Principle #1Segmentation

2Reliability

If foam balls occupy a large portion of container space (as in US-3 822 807), then pressure rise is prevented, but storage space is significantly reduced

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

Instead of uniformly distributing foam balls throughout the container, the invention places foam members locally at strategic positions where they contact the liquid surface and connect to buoyant elements. This localized approach provides pressure control functionality only where needed, preserving the majority of storage space while maintaining safety

Inventive Principle:
Principle #3Local quality

3Ease of operation

If the anti-sloshing apparatus is made removable and modular, then ease of installation/dismantle is improved, but structural integrity may be compromised

Engineering Contradiction:
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The connecting members integrally join the buoyant elements and foam members into a unified grid structure that functions as a single structural unit. This merging of modular components restores the structural integrity needed for effective sloshing prevention while preserving the advantage of modular installation and removal capabilities

Inventive Principle:
Principle #5Merging (Combining)

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 apparatus efficiently inhibits liquid cargo sloshing across various vessel types, reduces storage space requirements, and maintains structural integrity, allowing for smoother operations and reduced structural reinforcement needs, particularly in cryogenic environments.

Implementation Method 1

each including a buoyant member and a foam member surrounding the buoyant member

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Implementation Method 2

a foam member having open cell structure to absorb the liquid and covering the buoyant member

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Data Source

PatentEP2851317B1Anti-sloshing apparatus
Publication Date: 2016.09.07
  • EP2851317B1 patent drawingFigure 1
  • EP2851317B1 patent drawingFigure 2~3
  • EP2851317B1 patent drawingFigure 4

AI summary

An anti-sloshing apparatus has a plurality of anti-sloshing blocks (110), each including a buoyant member (111) and a foam member (112) surrounding the buoyant member, and a plurality of connecting members (120, 122) that removably connect the plurality of anti-sloshing blocks together to form a grid structure. Each one of the anti-sloshing blocks (110) is removably connected to adjacent ones of the anti-sloshing blocks by the connecting members (120, 122) and is detachable from the adjacent ones of the anti-sloshing blocks by detaching adjacent ones of the connecting members without affecting a structure formed by the other ones of the anti-sloshing blocks.