Filtration Self-Cleaning Mechanism with Regulated Suction Scanning
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Solution Overview
Problem
Water filtration systems often require significant clean water consumption for cleaning, affecting efficiency and maintenance costs, and the average pressure drop over the system.
Innovation Solution
A self-cleaning mechanism for filtration systems featuring a suction scanner with a central tube that is rotatable and linearly movable, regulated by a linear displacement regulator with a regulative-fluid compartment and flow-restrictor, ensuring efficient cleaning with minimal water usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a suction scanner is used to clean the filter element, then cleaning effectiveness is improved, but clean water consumption increases
Solution Approach 1:
The suction scanner performs cleaning in periodic cycles rather than continuous operation. The scanner activates for predetermined time intervals to clean the filter element, then remains inactive. This periodic action maintains cleaning effectiveness while significantly reducing clean water consumption compared to continuous cleaning systems.
Solution Approach 2:
The system uses the filtered fluid that has already passed through the filter element to power the suction scanner during cleaning cycles. This self-service approach allows the system to clean itself using its own operational fluid, minimizing the need for additional clean water input while maintaining effective cleaning performance.
2Reliability
If the suction scanner operates continuously, then cleaning thoroughness is improved, but system efficiency decreases
Solution Approach 1:
The suction scanner operates in periodic cycles with predetermined duration rather than continuously. Each cleaning cycle is timed to provide thorough cleaning of the filter element surface, followed by idle periods that restore system efficiency. This periodic operation ensures cleaning thoroughness is achieved at critical moments without continuous resource consumption.
Solution Approach 2:
The system performs cleaning actions at predetermined intervals before significant fouling occurs. By initiating cleaning cycles proactively based on time or operational criteria, the system maintains filter performance and avoids the need for continuous or frequent intensive cleaning, thereby preserving overall system efficiency.
3Measurement precision
If the linear displacement regulator is added to control the suction scanner, then cleaning precision is improved, but device complexity increases
Solution Approach 1:
The linear displacement regulator uses hydraulic or pneumatic principles to control the linear motion of the suction scanner. A regulated fluid (water or air) flows through a flow restrictor to create controlled pressure differential that drives the scanner's linear displacement. This approach achieves precise positioning and motion control using readily available fluid power components rather than complex mechanical actuators.
Solution Approach 2:
The regulated fluid acts as an intermediary between the control system and the suction scanner's linear motion mechanism. The fluid flows through a flow restrictor and regulates the pressure differential that drives the scanner's linear movement, providing smooth and controlled displacement without requiring direct mechanical linkage or complex electronic control systems.
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 mechanism reduces clean water consumption and maintains efficient filtration by automatically regulating the cleaning process, ensuring thorough cleaning without damaging the filter.
Implementation Method 1
a regulative flow-restrictor; and a regulative-fluid compression element linearly comoving with the suction scanner and enforcing a regulative-fluid filled in the regulative-fluid compartment to flow through the regulative flow-restrictor
Implementation Method 2
at least one suction nozzle extending between said central tube and a scannable plane at which suction into the nozzle is intended during the cleaning session
Data Source
AI summary
A self-cleaning mechanism for a filtration system, being disclosed, comprising a filter element positioned in a filtration chamber and a suction scanner for cleaning the filter element upon activation of a cleaning session, wherein a linear motion of the suction scanner between an initial position and a final position is automatically regulated by a linear displacement regulator comprising (i) a regulative-fluid compartment in liquid communication with a regulative flow-restrictor; and (ii) a regulative-fluid compression element linearly comoving with the suction scanner for enforcing a regulative-fluid filled in the regulative-fluid compartment, to flow through the regulative flow-restrictor. Further being disclosed are a filtration system comprising said self-cleaning mechanism, and a method for regulating the linear displacement of a suction scanner of a self-cleaning filtration system by said linear displacement regulator.