Air Drying System Flow Rate Control for Uniform Dehumidification

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Solution Overview

Problem

Air drying systems face inefficiencies due to varying water content in atmospheric air, leading to inconsistent dehumidification performance across multiple drying devices, and a need for adaptive control to ensure uniform air flow and detect potential malfunctions.

Innovation Solution

An air drying system with multiple drying devices, measuring devices, and control valves that adjust flow rates and operational times based on real-time measurements of temperature, humidity, and pressure to maintain uniform air flow and detect malfunctions, using a processor to calculate optimal adsorption process durations and switch between adsorption and regeneration processes in towers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the flow rate of air discharged from drying devices is increased to meet demand, then productivity is improved, but the dehumidification efficiency deteriorates due to reduced contact time between air and adsorbent

Engineering Contradiction:
Improveair discharge flow rateVSAvoiddehumidification efficiency
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system divides the air drying process into multiple parallel drying devices, each handling a portion of the total air flow. This segmentation allows each device to maintain optimal flow rates for effective dehumidification while collectively meeting the overall productivity demand.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system dynamically adjusts the operational state of drying devices based on real-time flow rate measurements. When demand increases, additional devices are activated or operational parameters are adjusted to maintain both productivity and dehumidification efficiency.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the flow rates of air discharged from multiple drying devices are not uniform, then ease of operation is improved by allowing independent operation, but manufacturing precision deteriorates due to inconsistent performance across devices

Engineering Contradiction:
Improveindependent device operationVSAvoiduniformity of air flow rates
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

Each drying device is equipped with flow rate sensors that continuously monitor discharge flow rates. This feedback is sent to the control system, which automatically adjusts operational parameters of individual devices to maintain uniform flow rates across all devices, ensuring consistent performance while allowing independent operation.

Inventive Principle:
Principle #23Feedback

3Device complexity

If fixed adsorption process times are used regardless of air conditions, then device complexity is reduced, but adaptability deteriorates as the system cannot respond to varying water content in atmospheric air

Engineering Contradiction:
Improvecontrol system simplicityVSAvoidresponse to varying air conditions
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The system automatically adjusts the adsorption process time based on measured water content in the atmospheric air. When humidity is high, the adsorption time is extended to ensure thorough dehumidification. When humidity is low, the time is reduced, allowing the system to adapt to varying conditions without manual intervention.

Inventive Principle:
Principle #35Parameter changes

4Adaptability or versatility

If real-time measurement and control of multiple parameters is implemented, then adaptability is improved, but device complexity increases due to additional sensors and control mechanisms

Engineering Contradiction:
Improveresponse to air conditionsVSAvoidnumber of measuring and control components
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The control system is designed to perform multiple functions using integrated components. The same sensors and control mechanisms that regulate flow rates also monitor adsorption process timing and coordinate between multiple drying devices, reducing the need for separate dedicated components for each function.

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

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

Enhances dehumidification efficiency by maintaining uniform air flow rates across devices, extends adsorption process times based on air conditions, and promptly identifies and addresses device malfunctions, ensuring consistent dry air production.

Implementation Method 1

An air drying system employing the adsorption method uses a porous adsorbent in a drying device to remove water from air.

Methodology Applied
Scientific EffectAdsorption: Adsorption

Implementation Method 2

a plurality of measuring devices, each installed on an exhaust pipe coupled to the exhaust port of each of the plurality of drying devices, the plurality of measuring devices measuring flow rates of air discharged from the plurality of drying devices

Methodology Applied
Scientific EffectFlow rate measurement:

Data Source

PatentUS20240159416A1Air drying system and method of controlling the same
Publication Date: 2024.05.16 SAMSUNG DISPLAY CO LTD
  • US20240159416A1 patent drawing
  • US20240159416A1 patent drawing
  • US20240159416A1 patent drawing

AI summary

An air drying system includes drying devices, each including an intake port and an exhaust port, measuring devices installed on respective exhaust pipes coupled to the exhaust ports of the drying devices, and measuring flow rates of air discharged from the drying devices, valves installed on the exhaust pipes to control the flow rates of air discharged from the drying devices, and a controlling device that receives data from the measuring devices, and controls the valves such that the flow rates of air discharged from the drying devices are uniform. The drying devices are controlled such that air is discharged from the drying devices at a uniform flow rate.