Filter Cleaning Control With Pressure Feedback and Low-Loss Connection
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Solution Overview
Problem
Current cleaning methods for filters in installations and filter systems result in inefficient and costly cleaning due to unnecessary cleaning processes, incomplete cleaning of filter sections, and high flow losses, leading to additional costs and reduced effectiveness.
Innovation Solution
A cleaning method with adjustable time intervals between cleaning cycles, utilizing feedback control based on differential pressure, and a connecting device with oblique openings to reduce flow losses and enhance the connection between the filter and cleaning device, allowing for more efficient and economical cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If filter sections are cleaned at fixed time intervals, then cleaning processes are regularly executed, but unnecessary cleaning occurs and filter cake is removed too early or too late
Solution Approach 1:
The system uses differential pressure sensors to continuously monitor the filter status and provides feedback to the control unit. The control unit adjusts cleaning timing based on actual filter condition (pressure differential) rather than fixed schedules, eliminating unnecessary cleaning operations while ensuring cleaning occurs when actually needed.
Solution Approach 2:
The cleaning interval is made dynamic and adjustable rather than fixed. The control unit can adaptively change the time intervals between cleaning processes based on operational conditions, filter loading, and differential pressure measurements, optimizing cleaning frequency to match actual needs.
2Reliability
If cleaning processes are executed frequently, then filter cleanliness is maintained, but additional costs and energy consumption increase
Solution Approach 1:
The differential pressure feedback mechanism ensures cleaning is triggered only when the filter actually requires it (when pressure differential indicates clogging). This prevents energy-wasting cleaning operations on already clean filters while maintaining reliability by cleaning when necessary.
Solution Approach 2:
The filter system monitors its own state through differential pressure sensors and automatically initiates cleaning only when performance degradation is detected, eliminating the need for external scheduling and avoiding unnecessary energy consumption.
3Ease of operation
If cleaning medium is directed through standard connecting devices, then connection between filter and cleaning device is established, but high flow losses occur
Solution Approach 1:
The connecting device geometry is optimized by changing parameters such as opening angles (oblique openings at specific angles to the longitudinal axis), cross-sectional areas, and flow path configurations. These parameter changes reduce flow resistance and minimize energy losses while maintaining ease of connection.
Solution Approach 2:
The connecting device incorporates oblique openings that are inclined at specific angles rather than perpendicular to the flow direction. This angular/dimensional modification optimizes flow characteristics, reduces turbulence, and minimizes pressure losses in the connecting device.
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 method achieves reliable, efficient, and economical cleaning of filters by optimizing cleaning cycles and minimizing flow losses, reducing the number of cleaning processes, and ensuring complete cleaning of filter sections.
Implementation Method 1
cleaning devices generate a pressure pulse, in particular at least essentially against that flow direction which prevails in the filter during filtration by means of the filter
Implementation Method 2
a connecting device is made to direct a medium, in particular a fluid of the cleaning device, to the filter which is preferably connected to the cleaning device
Data Source
AI summary
A cleaning method for sectional cleaning of a filter having several filter sections, the filter sections being cleaned within a cleaning cycle in cleaning processes separated in time from one another, the cleaning method having at least two cleaning cycles and both a time interval between the cleaning processes within the respective cleaning cycle and also a time interval between the end of one of the cleaning cycles and the start of a following one of the cleaning cycles being changed. Moreover, a connecting device for connecting a filter to a cleaning device having a side wall, which borders an internal cross section, which increases along a longitudinal axis of the connecting device and has lateral openings with assigned major axes and a method of connecting the connecting device to a filter device.