Truss Framework Liquid Collection and Distribution Device

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Solution Overview

Problem

Existing vapor-liquid contact devices face challenges in efficiently collecting and redistributing liquid between packing beds, leading to liquid flow irregularities that impede uniform vapor-liquid interaction, and occupy valuable column height, increasing material costs and limiting mass transfer or heat exchange capabilities.

Innovation Solution

A liquid collection and distribution device with a truss structure framework and internal fluid passages is used to collect liquid from the top and bottom channels, conveying it to a distributor, allowing for efficient redistribution and minimizing the need for separate support structures, thus optimizing column height and flow uniformity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If separate support structures and liquid collection/distribution devices are used, then structural support is provided, but column height increases and mass transfer efficiency decreases

Engineering Contradiction:
Improvestructural supportVSAvoidmass transfer efficiency
Core Design Contradiction:
StrengthVSProductivity

Solution Approach 1:

The patent combines the support structure and liquid collection/distribution devices into a single integrated framework. The truss structure provides mechanical support while simultaneously incorporating collection channels and distribution mechanisms, eliminating the need for separate support structures and reducing the space required for mass transfer operations.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The framework serves multiple functions: it provides structural support for the packing bed, collects liquid from the packing bed, distributes liquid uniformly to the underlying bed, and maintains column integrity. This multi-functionality reduces the overall column height required and increases the effective mass transfer area.

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

2Stability of the object's composition

If liquid collection and distribution devices are added, then liquid flow uniformity is improved, but device complexity increases

Engineering Contradiction:
Improveliquid flow uniformityVSAvoiddevice complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The collection and distribution functions are merged into a single framework structure. The collection channels are integrated into the upper portions of the framework members, while distribution outlets are positioned at lower portions, creating a unified device that simplifies the overall system while maintaining liquid flow uniformity.

Inventive Principle:
Principle #5Merging (Combining)

3Stability of the object's composition

If more column height is provided for support structures, then structural stability is improved, but available mass transfer height decreases

Engineering Contradiction:
Improvestructural stabilityVSAvoidmass transfer capacity
Core Design Contradiction:
Stability of the object's compositionVSProductivity

Solution Approach 1:

The support structure and liquid handling devices are merged into a single integrated framework that occupies minimal vertical space. The truss structure provides adequate structural support while the collection and distribution channels are positioned within the same vertical envelope, maximizing the height available for mass transfer operations.

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

This solution enhances liquid distribution uniformity, reduces column height requirements, and improves mass transfer or heat exchange efficiency by integrating the liquid collection and distribution system within the column, providing material savings and improved performance.

Implementation Method 1

conveying it to the liquid distributor

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentEP2638348B1Liquid collection and distribution device for mass transfer column and process involving same
Publication Date: 2018.01.10 KOCH GLITSCH INC
  • EP2638348B1 patent drawingFigure 1
  • EP2638348B1 patent drawingFigure 2
  • EP2638348B1 patent drawingFigure 3

AI summary

A liquid collection and distribution device is provided to support a bed of packing material and to collect liquid exiting the bed and redistribute it to an underlying bed of packing material with improved compositional and volumetric flow uniformity. The liquid collection and distribution device includes a liquid collector, a liquid distributor, and a lattice-type framework positioned between and supporting the liquid collector and the liquid distributor. In addition to supporting the liquid collector and liquid distributor, the framework has internal fluid passages that convey the liquid from the liquid collector to the liquid distributor while shielding the liquid from ascend vapor or gas flow.