Cleaning Head for Air Intake Conduits Using Merged Fluid Propulsion

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Solution Overview

Problem

Existing air intake plant decontamination systems are limited by heavy cleaning heads that restrict their range of action, require frequent maintenance, and inefficiently remove particulates due to separate propulsion and cleaning fluid systems, leading to limited reach and increased maintenance needs.

Innovation Solution

A decontamination system with a cleaning head that uses a single two-phase fluid for both propulsion and cleaning, delivered through a tapered hollow body with annular and through-hole apertures, optimizing movement and dirt removal, and a modular intake apparatus with filtering modules to prevent dispersion of dirt, allowing for extended reach and reduced weight.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If separate feed and delivery pipes for two fluids are provided in the cleaning head, then propulsion and cleaning functions are achieved, but the weight of the cleaning head increases significantly

Engineering Contradiction:
Improvepropulsion and cleaning functionVSAvoidcleaning head weight
Core Design Contradiction:
Ease of operationVSWeight of moving object

Solution Approach 1:

The patent combines the delivery of two separate fluids (propulsion fluid and cleaning fluid) into a single integrated system. The cleaning head receives a mixed fluid stream that serves both propulsion and cleaning functions simultaneously, eliminating the need for separate feed pipes and reducing the overall weight of the cleaning head while maintaining both operational functions.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If the cleaning head has complex internal conformation for separate fluid delivery, then dual fluid delivery is achieved, but the manufacturing complexity increases

Engineering Contradiction:
Improvedual fluid deliveryVSAvoidcleaning head manufacturing
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The patent simplifies the internal conformation of the cleaning head by merging the delivery mechanisms for both fluids into a single integrated structure. Instead of complex separate piping systems, the design uses a unified fluid delivery path that reduces manufacturing steps, lowers production costs, and improves ease of manufacture while still achieving dual fluid delivery functionality.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If the cleaning head is made heavy to support separate fluid systems, then fluid delivery reliability is improved, but the range of action inside the conduit is limited

Engineering Contradiction:
Improvefluid delivery reliabilityVSAvoidrange of action
Core Design Contradiction:
ReliabilityVSLength of stationary object

Solution Approach 1:

The patent achieves reliable dual fluid delivery without increasing weight by merging the fluid delivery systems. The integrated design maintains sufficient fluid pressure and flow reliability for both propulsion and cleaning functions while keeping the cleaning head lightweight enough to be propelled by compressed air over extended distances of 20-30 meters inside the conduit.

Inventive Principle:
Principle #5Merging (Combining)

4Adaptability or versatility

If separate propulsion and cleaning systems are used, then functional separation is achieved, but the system complexity and maintenance needs increase

Engineering Contradiction:
Improvefunctional separationVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the propulsion and cleaning functions into a single integrated fluid delivery system. The cleaning head receives one mixed fluid stream that simultaneously provides both propulsion force and cleaning action, reducing the number of separate components, simplifying the overall system architecture, and decreasing maintenance requirements while maintaining functional versatility.

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 system effectively increases the range of action up to 20 meters, reduces maintenance needs, and ensures efficient dirt removal and propulsion using a single fluid, while maintaining adherence to conduit surfaces and preventing environmental dispersion.

Implementation Method 1

the cleaning head delivers under pressure a stream of two-phase fluid, that is, a mixture of compressed air and nebulized sanitizing liquid

Methodology Applied
Scientific EffectCompressed air propulsion: Pressure Gradient

Implementation Method 2

an aspirator which generates a depression inside the conduit to be decontaminated

Methodology Applied
Scientific EffectDepression generation: Pressure Gradient

Data Source

PatentEP2274110B1Decontamination method and system for air intake plants, and cleaning head for said system
Publication Date: 2012.09.26 ARIA SRL
  • EP2274110B1 patent drawingFigure 1~5
  • EP2274110B1 patent drawingFigure 2~3

AI summary

Decontamination system (10) for air intake plants comprising a cleaning apparatus (12) at least partly inserted inside a conduit ( 1 1) of the plant so as to remove any dirt possibly present, in particular on at least part of the internal surfaces of the conduit (1 1), and a suction apparatus (13) that takes in the dirt removed by the cleaning apparatus (12), to prevent it from being dispersed in the environment. The cleaning apparatus (12) comprises at least a cleaning head (20) which is inserted and moved inside the conduit (11), and delivers under pressure at least a stream of fluid. The cleaning head (20) comprises a hollow body (25) conformed so as to define at least a first exit aperture (32) shaped so as to direct at least a first portion of the stream of fluid in a direction such as to guarantee the propulsion forward of the cleaning head (20), and with an angle such as to hit the internal surfaces.