Perforated Fluid Disperser Wall Structure for Uniform Flow Distribution

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Solution Overview

Problem

Existing fluid dispersing devices, such as perforated plates, suffer from uneven fluid distribution due to fluid flowing along the surface and concentrating around the circumferential edge, leading to pressure imbalances and uneven dispersion.

Innovation Solution

A fluid dispersing device with a disk-like plate body and hoop-shaped wall portions that redirect fluid flow to improve dispersion by dividing it into multiple paths, ensuring balanced distribution across the entire surface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a perforated plate is used to disperse fluid, then the fluid can be directed to multiple channels, but the fluid flow concentrates at the circumferential edge causing uneven dispersion

Engineering Contradiction:

Improvefluid dispersion capabilityVSAvoidflow distribution uniformity

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The plate body is divided into multiple wall portions (first wall portion, second wall portion, third wall portion, fourth wall portion) that segment the fluid flow into different paths. Each wall portion directs fluid to specific regions, ensuring uniform distribution across all channels rather than concentration at the circumferential edge.

Inventive Principle:

Principle #1Segmentation

2Area of stationary object

If fluid flows along the surface of the perforated plate, then it reaches multiple areas, but pressure increases causing fluid to bypass through gaps

Engineering Contradiction:

Improvefluid coverage areaVSAvoidfluid pressure

Core Design Contradiction:

Area of stationary objectVSStress or pressure

Solution Approach 1:

The invention introduces vertical wall portions that extend in the depth direction, creating a three-dimensional flow path structure. This dimensional change guides fluid through controlled pathways rather than allowing unrestricted surface flow, maintaining pressure balance and preventing bypass through gaps.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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 device enhances fluid dispersion performance by equalizing flow velocity and improving the balance of fluid distribution, ensuring uniform dispersion across all channels.

Implementation Method 1

the fluid flowing along the surface of the perforated plate concentrates around the circumferential edge of the perforated plate adjacent to the inner wall of a container housing the perforated plate

Methodology Applied

Scientific EffectFluid flow redirection:

Data Source

PatentEP3653289B1Fluid disperser and fluid dispersing device

Publication Date: 2025.12.10 IHI CORP

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Figure 3A~3B

AI summary

A fluid disperser (10) includes a plate body (12) installed in a channel, having a first wall portion (12d) in a middle region of a first surface (12a) facing the upstream side, and provided with a plurality of holes (12c) allowing a fluid to flow in from the upstream side to the downstream side, and a second wall portion (14) provided on the first surface (12a) and having an inner surface (14a) intersecting with a line (LN) extending from the middle region to a circumferential edge of the first surface (12a).