Particle Removal Filter Cleaning via Bypass Wet Wash

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing particle discharge devices require filter removal for cleaning, which is cumbersome and costly, necessitating the use of lifting columns.

Innovation Solution

A particle discharge device with a bypass channel and shut-off valve allows in-place cleaning (CIP) without filter removal, featuring a clean gas chamber cleaning nozzle and process chamber cleaning nozzle for wet cleaning, and a dry cleaning mechanism for automated filter maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If filter removal is used for cleaning, then cleaning can be performed, but device complexity increases due to lifting column requirement

Engineering Contradiction:
Improvecleaning accessibilityVSAvoidlifting column structure
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The system performs self-cleaning through automated spray nozzles that clean the filter element in place, eliminating the need for manual removal and lifting column infrastructure. The clean gas chamber cleaning device and process chamber cleaning device enable the system to maintain itself without external intervention or complex support structures.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Hydraulic spray nozzles deliver cleaning fluid to the filter element through the bypass channel, enabling in-place cleaning without mechanical removal. The use of fluid delivery systems replaces the need for lifting mechanisms and manual handling infrastructure.

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Ease of manufacture

If filter removal is used for cleaning, then cleaning can be performed, but loss of time increases due to removal and reinstallation

Engineering Contradiction:
Improvecleaning capabilityVSAvoidfilter removal and reinstallation time
Core Design Contradiction:
Ease of manufactureVSLoss of time

Solution Approach 1:

The cleaning operation is integrated into the continuous operation of the particle discharge device. The bypass channel allows cleaning fluid to be delivered during normal operation or quick maintenance cycles, eliminating the need to stop the system for filter removal and reinstallation. The automated system maintains continuous or near-continuous operation.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The spray nozzles are pre-positioned to deliver cleaning fluid directly to the filter element at the optimal locations. The bypass channel is pre-configured to route cleaning fluid efficiently, allowing immediate cleaning action without the time-consuming steps of filter removal and reinstallation.

Inventive Principle:
Principle #10Preliminary action

3Ease of manufacture

If filter removal is used for cleaning, then cleaning can be performed, but ease of operation worsens due to manual handling requirements

Engineering Contradiction:
Improvecleaning functionVSAvoidmanual filter handling
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The system automates the cleaning function through spray nozzles and fluid delivery systems, eliminating manual filter handling. The bypass channel and shut-off valve enable automated control of the cleaning process without operator intervention for filter removal or installation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Manual mechanical filter handling is replaced by an automated fluid delivery system. The bypass channel with shut-off valve provides automated control mechanisms that substitute for manual operation, improving ease of operation through automation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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

Enables efficient, automated, and cost-effective in-place cleaning of filters, eliminating the need for lifting columns and ensuring continuous operation with reduced downtime.

Implementation Method 1

a clean gas chamber cleaning device arranged in the clean gas chamber, having at least one clean gas chamber cleaning nozzle, for wet cleaning of the filter

Methodology Applied
Scientific EffectFluid spray cleaning: Fluid Spray

Implementation Method 2

a bypass channel through which the bypass channel has a bypass inlet connected to the clean gas chamber and a bypass outlet connected to the process chamber

Methodology Applied
Scientific EffectFluid flow through bypass channel:

Implementation Method 3

the bypass channel has a shut-off valve that can be positioned either in a closed position preventing fluid flow through the bypass channel or in at least one open position allowing fluid flow

Methodology Applied
Scientific EffectValve flow control: Valve

Data Source

PatentEP4572874B1Particle removal device and method for wet cleaning of a particle removal device
Publication Date: 2025.12.24 GLATT GMBH
  • EP4572874B1 patent drawingFigure 1
  • EP4572874B1 patent drawingFigure 2
  • EP4572874B1 patent drawingFigure 3

AI summary

The invention relates to a particle removal device (1) for removing particles from a process gas stream, and to a method for wet cleaning of the particle removal device (1).