Air Supply Device with Segmented Flow Paths for Paint Booths

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Solution Overview

Problem

Existing air supply systems in paint shops require total air flow to pass through multiple conditioning units sequentially, leading to inefficiencies in energy usage and increased flow resistance, making them less energy-efficient and more costly.

Innovation Solution

The system divides the total air flow into partial flows, allowing each to be conditioned differently in separate paths, reducing the need for large conditioning units and minimizing flow resistance, with options for air humidity and temperature conditioning units arranged strategically to optimize energy efficiency and control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the total air flow passes through multiple conditioning units sequentially, then the air can be conditioned with respect to temperature and humidity, but the flow resistance increases and energy efficiency decreases

Engineering Contradiction:
Improveair conditioning effectivenessVSAvoidenergy efficiency
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The total air flow is divided into multiple partial air flows that can be conditioned separately through different flow paths. Each partial air flow passes through only the necessary conditioning units required for its specific requirements, rather than all conditioning units sequentially. This segmentation reduces the cumulative flow resistance and energy consumption while maintaining effective temperature and humidity conditioning for each air stream.

Inventive Principle:
Principle #1Segmentation

2Reliability

If the total air flow passes through multiple conditioning units sequentially, then the air can be conditioned with respect to temperature and humidity, but the flow resistance increases

Engineering Contradiction:
Improveair conditioning effectivenessVSAvoidflow resistance
Core Design Contradiction:
ReliabilityVSStress or pressure

Solution Approach 1:

The air flow path is segmented into multiple parallel paths, where each path contains only the conditioning units necessary for that specific air stream. This reduces the cumulative pressure drop across the system compared to a single sequential path where all conditioning units are traversed by the entire air flow.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different flow paths are configured with different conditioning units based on the specific requirements of each partial air flow. This allows optimization of each path's pressure characteristics, placing conditioning units only where needed rather than uniformly across all paths, thereby reducing overall flow resistance.

Inventive Principle:
Principle #3Local quality

3Reliability

If a large conditioning unit is used to condition the total air flow, then the entire air flow can be conditioned, but the device becomes more complex and less energy-efficient

Engineering Contradiction:
Improveair conditioning effectivenessVSAvoidconditioning unit size
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Instead of using one large conditioning unit to handle the total air flow, the system segments the air flow into multiple partial streams, each processed by smaller, dedicated conditioning units. This reduces the size and complexity of individual conditioning components while achieving the same overall conditioning effectiveness for the total air flow.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system allows for dynamic configuration of flow paths, where different partial air flows can be routed through different conditioning units based on real-time requirements. This flexibility enables the use of smaller, more manageable conditioning units rather than requiring a single large static unit capable of handling all conditioning needs simultaneously.

Inventive Principle:
Principle #15Dynamics

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 approach results in reduced energy consumption, lower investment costs, and improved control over air conditioning, enabling more efficient and modular air supply systems for paint shops.

Implementation Method 1

at least one fan for driving at least one partial air flow guided in the circulating air circuit

Methodology Applied
Scientific EffectPressure gradient: Pressure Gradient

Implementation Method 2

at least one air temperature conditioning unit for influencing the temperature of at least one partial air flow

Methodology Applied
Scientific EffectHeat transfer: Heat Exchanger

Implementation Method 3

an air temperature conditioning unit designed as a heating unit

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 4

a humidity conditioning unit designed as an air humidification unit

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Implementation Method 5

a humidity conditioning unit designed as an air dehumidification unit

Methodology Applied
Scientific EffectCondensation: Condensation

Data Source

PatentEP2244840B2Device and method for supplying air to an application zone of a paint booth
Publication Date: 2016.07.27 DUERR SYSTEMS GMBH
  • EP2244840B2 patent drawingFigure 1
  • EP2244840B2 patent drawingFigure 2
  • EP2244840B2 patent drawingFigure 3

AI summary

The invention relates to a device for supplying air to an application zone (108) of a painting line (100), comprising a recirculating air circuit and at least one conditioning unit (188) that conditions at last part of the air guided in the recirculating air circuit, the device comprising at least one air humidity conditioning unit (190). The aim of the invention is to improve said device in such a manner that it allows an especially energy-efficient operation. The device according to the invention comprises a plurality of different flow paths for at least two partial air flows (A, B). The at least two partial air flows (A, B) can be differently conditioned in the different flow paths.