Proactive Pulse Cleaning for Filtration Systems

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Solution Overview

Problem

Existing filtration systems rely on reactive cleaning methods based on differential pressure thresholds, which may not efficiently manage filtration performance and demand changes, leading to suboptimal system operation.

Innovation Solution

The implementation of a filtration system that can proactively pulse clean filter elements using compressed gas, controlled by a system that receives data on anticipated changes in filtration performance or demand, allowing for adjustments in pressure drop thresholds and proactive cleaning operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If reactive cleaning based on differential pressure thresholds is used, then the system structure is simple, but filtration performance and system efficiency deteriorate due to delayed cleaning

Engineering Contradiction:
Improvefiltration performanceVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system performs preliminary actions by proactively cleaning filter elements before the differential pressure threshold is reached. The control circuit initiates pulse cleaning operations based on predicted filtration demand changes, environmental conditions, or scheduled maintenance intervals, preventing pressure buildup before it occurs rather than reacting after the threshold is exceeded.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts the differential pressure threshold for triggering pulse cleaning operations. Instead of using a fixed threshold, the control circuit modifies the threshold value based on real-time conditions such as filtration demand predictions, environmental factors, and filter element status, allowing the system to adapt its cleaning strategy to varying operational requirements.

Inventive Principle:
Principle #15Dynamics

2Productivity

If proactive pulse cleaning is implemented, then system efficiency and filtration performance improve, but device complexity increases due to additional control circuits and communications

Engineering Contradiction:
Improvesystem efficiencyVSAvoidcontrol system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The control circuit autonomously determines when pulse cleaning operations should be initiated by evaluating predicted filtration demand, environmental conditions, and current system status. The system serves itself by making intelligent decisions about cleaning timing without requiring constant external intervention or complex centralized control, reducing the burden on external control infrastructure.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system incorporates feedback mechanisms where the control circuit continuously monitors differential pressure, filtration demand predictions, and environmental conditions to adjust cleaning operations in real-time. This feedback loop allows the system to optimize its performance by learning from operational patterns and adapting its proactive cleaning strategy based on actual system responses.

Inventive Principle:
Principle #23Feedback

3Power

If cleaning is delayed until pressure threshold is crossed, then energy consumption is lower, but filtration system demand response deteriorates

Engineering Contradiction:
Improveenergy consumptionVSAvoiddemand response capability
Core Design Contradiction:
PowerVSAdaptability or versatility

Solution Approach 1:

The system performs preliminary cleaning actions before the differential pressure threshold is reached, proactively maintaining filter elements in a clean state in anticipation of increased filtration demand. This allows the system to respond more effectively to sudden demand changes or environmental conditions without waiting for pressure buildup, improving adaptability while managing energy consumption through intelligent timing.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts its cleaning strategy based on predicted filtration demand and environmental conditions. When high demand or challenging environmental conditions are predicted, the system performs proactive cleaning at lower pressure thresholds. When conditions are favorable, it allows pressure to build closer to the threshold, dynamically optimizing the balance between energy consumption and demand response capability.

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 enables the filtration system to maintain lower average pressure drops and ensure filter elements are clean before anticipated increases in demand or performance changes, thereby enhancing system efficiency and performance.

Implementation Method 1

opening the valve results in a pulse of gas directed at the filter element

Methodology Applied
Scientific EffectPulse jet cleaning: Pulse Jet

Implementation Method 2

a pulse of air flows through the diaphragm valves and into the interior of the filter element resulting in a retrograde pressure wave that can be sufficient to clean the filter element by dislodging particulate matter thereon

Methodology Applied
Scientific EffectRetrograde pressure wave: Pressure Gradient

Data Source

PatentUS20250153085A1Filtration systems with proactive pulse cleaning
Publication Date: 2025.05.15 DONALDSON CO INC
  • US20250153085A1 patent drawing
  • US20250153085A1 patent drawing
  • US20250153085A1 patent drawing

AI summary

Included herein are filtration systems that can proactively pulse clean filter elements in response to anticipated changes, such as anticipated changes in filtration performance or anticipated changes in filtration system demand. In an embodiment, a filtration system is included having a filter element mount for a filter element, a compressed gas supply, and a valve, wherein opening the valve results in a pulse of gas directed at the filter element. A control circuit can control the valve. A communications circuit can receive data related to an anticipated change, such as data regarding an anticipated change in filtration performance and/or data regarding an anticipated change in filtration system demand. The control circuit can execute operations based on the anticipated change data such as adjusting a pressure drop threshold and initiating proactively opening the valve in the absence of a pressure drop threshold being crossed. Other embodiments are also included herein.