Eduction Tube Assembly Segmented Washer Flange Connection

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Solution Overview

Problem

Existing piping components for transporting corrosive liquids face durability issues under arduous conditions and require complex bolted connections to join flanges of different sizes, which can lead to leakage and damage to protective linings.

Innovation Solution

An eduction tube assembly with a multidirectional segmented securement washer that connects flanges of different sizes using a single segmented washer with radially elongated holes and upstanding threaded studs, minimizing the length of the assembly and reducing the number of components, while maintaining a fluid-tight seal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple separate components are used to connect flanges of different sizes, then adaptability is improved, but device complexity increases

Engineering Contradiction:
Improveability to connect flanges of different sizes and bolt patternsVSAvoidnumber of separate component parts
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple separate components (transition flange, multiple washers, multiple bolts) into a single integrated segmented washer with multidirectional connectability. This single component can connect flanges of different sizes and bolt patterns, reducing the number of separate parts while maintaining adaptability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The segmented washer is designed with multidirectional connectability, allowing it to serve multiple functions: connecting different flange sizes, accommodating various bolt patterns, and providing securement in restricted spacing. This universal design eliminates the need for multiple specialized components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple separate components are used to connect flanges, then adaptability is improved, but the overall length of the assembly increases

Engineering Contradiction:
Improveability to connect flanges of different sizesVSAvoidoverall length of the assembly in the direction of flow
Core Design Contradiction:
Adaptability or versatilityVSLength of stationary object

Solution Approach 1:

By merging the transition flange and multiple washers into a single segmented washer component, the overall axial length of the assembly is reduced. The integrated design eliminates the cumulative thickness of multiple separate components while maintaining the ability to connect flanges of different sizes.

Inventive Principle:
Principle #5Merging (Combining)

3Strength

If conventional bolted connections are used to join flanged components, then strength is improved, but reliability decreases due to leakage risks and damage to protective linings

Engineering Contradiction:
Improvestrength of bolted connectionsVSAvoidrisk of leakage and damage to protective linings
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The washer is segmented into multiple sections that can be independently positioned and secured. This segmentation allows for distributed load bearing across multiple contact points, maintaining connection strength while reducing stress concentration points that could lead to leakage or lining damage.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS8894102B2Eduction tube assembly
Publication Date: 2014.11.25 STUCKI A CO
  • US8894102B2 patent drawing
  • US8894102B2 patent drawing
  • US8894102B2 patent drawing

AI summary

An eduction tube assembly made of ultra high molecular weight polyethylene material for use on a containment vessel for corrosive liquids. It includes a vertical eduction tube and a unitary transition flange member having a first flange for connection of the assembly to an attachment flange associated with the vessel and a second flange to receive a connected hose flange. A single segmented ring with multi-directional capability is disposed between the flanges and receives securement elements to accomplish both connections. Bolts are used for one connection, upstanding threaded studs secured to the segmented ring are used for the other.