Wind boosted ventilators having openings and compartments

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Solution Overview

Problem

Traditional static ventilation systems for industries are bulky, ineffective, prone to dust accumulation, and dependent on wind direction, with existing wind-induced systems failing to create a sufficient pressure gradient for effective exhaust gas removal.

Innovation Solution

A roof-mounted wind boosted static ventilator with a ventilation duct having inclined openings and guide vanes that divide the area between the duct and shroud into compartments, creating a pressure gradient to enhance airflow and prevent recirculation, while being robust and maintenance-free.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional static ventilation systems are used, then the structure is simple, but the ventilation effectiveness is poor and the system is bulky

Engineering Contradiction:

Improveventilation effectivenessVSAvoidsystem structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The space between the shroud and ventilation duct is divided into multiple compartments using guide vanes. This segmentation prevents pressure equalization between windward and leeward sides, maintaining effective pressure gradient for exhaust gas removal while keeping the overall structure compact

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The guide vanes create different pressure conditions in different local regions (compartments). Each compartment maintains specific pressure characteristics that collectively enhance the overall ventilation effectiveness without requiring a bulky structure

Inventive Principle:

Principle #3Local quality

2Productivity

If rotary ventilators are used to utilize wind energy, then the ventilation performance improves, but the system requires maintenance due to bearing erosion and wear

Engineering Contradiction:

Improveventilation performanceVSAvoidmaintenance requirement

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

Instead of using a rotating mechanism to capture wind energy, the invention uses a static structure that allows wind to pass through and create pressure differential. This inverts the approach from active rotation to passive static pressure utilization, eliminating bearing wear while maintaining ventilation performance

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The mechanical rotating system with bearings is replaced by a static mechanical structure using guide vanes and pressure plate. This substitution eliminates moving parts that require maintenance while preserving the wind energy utilization capability

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Device complexity

If vertical slots in duct covered by shroud are used, then the structure is simple, but the pressure difference created by wind is equalized inside the space making it ineffective

Engineering Contradiction:

Improvestructure simplicityVSAvoidexhaust gas removal effectiveness

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The annular space between shroud and duct is segmented into multiple compartments by guide vanes. This prevents the pressure difference created by wind from equalizing across the entire space, maintaining the pressure gradient necessary for effective exhaust gas removal

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The guide vanes act as intermediary elements that control the flow of air and pressure distribution between the windward and leeward sides. They prevent direct pressure equalization while allowing the system to remain structurally simple

Inventive Principle:

Principle #24Intermediary (Mediator)

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 ventilator achieves superior airflow rates and efficient exhaust gas removal with improved performance and reduced maintenance costs, outperforming traditional systems by maintaining a consistent pressure gradient and preventing mechanical wear.

Implementation Method 1

the pressure gradient boosts the flow of exhaust gases out of the buildings

Methodology Applied

Scientific EffectPressure gradient: Pressure Gradient

Implementation Method 2

a static ventilator system that uses wind induction effects to remove exhaust gases from enclosed spaces

Methodology Applied

Scientific EffectWind induction effects: Wind

Data Source

PatentUS10295183B2Wind boosted ventilators having openings and compartments

Publication Date: 2019.05.21 BANGERA ALICE RACHEL

AI summary

There is provided a wind boosted ventilation apparatus for removing exhaust gases from inside enclosed spaces to the atmosphere, said ventilation apparatus comprising a ventilation duct and an external wall having a plurality of openings, a circular pressure plate placed on the top of said ventilation duct, a shroud surrounding said ventilation duct in a such way that a gap is defined between said ventilation duct and said shroud, and a plurality of guide vanes extending outwardly and transversally with respect to the central axis, wherein said openings are extending along said external wall of the ventilation duct and are inclined at a predetermined angle with respect to central axis of said ventilation duct, and said plurality of guide vanes are placed in a such way that they divide the area between the ventilation duct and the shroud into a plurality of compartments.