A cleaning apparatus for cleaning filter screens
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Solution Overview
Problem
Existing cleaning mechanisms for filter screens are inefficient in removing retentate, leading to reduced suction force and increased liquid volume requirements.
Innovation Solution
A cleaning apparatus with a suction chamber and concentrically arranged nozzle system that creates a pressure differential to forcefully remove retentate from the filter screen using a low pressure regime, facilitated by a circular clearance and peripheral suction nozzles, allowing for efficient fluid communication and debris removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional cleaning mechanisms are used, then cleaning can be performed, but cleaning efficiency and effectiveness are reduced
Solution Approach 1:
The invention employs a suction chamber with concentric nozzles that utilize pressure differential and fluid dynamics to create a low pressure regime. Fluid enters the nozzles and creates suction force through the circular clearance, effectively removing retentate from the filter screen surface without requiring high pressure or large liquid volumes.
Solution Approach 2:
The invention changes the pressure parameters by creating a controlled low pressure regime within the suction chamber. The pressure differential between the high pressure outer surface and the low pressure suction chamber facilitates forceful fluid movement and retentate removal, improving cleaning effectiveness while reducing liquid volume requirements.
2Force
If high pressure is used for cleaning, then retentate removal force increases, but liquid volume required increases
Solution Approach 1:
The system uses hydraulic principles to create a pressure differential that generates suction force. The concentric nozzles and circular clearance design optimize fluid flow patterns, creating a low pressure regime that pulls fluid and retentate through the system efficiently, achieving strong removal force with reduced liquid volume.
Solution Approach 2:
Instead of using high pressure directly, the invention changes the pressure distribution by creating a low pressure zone in the suction chamber. This pressure differential approach achieves effective retentate removal while minimizing the total liquid volume required for cleaning.
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 apparatus enhances suction force and reduces liquid volume needed for cleaning, effectively removing retentate from the filter screen with improved efficiency.
Implementation Method 1
the fluid movement through the nozzle of the suction chamber creates a low pressure regime around a mouth of the nozzle inside the suction chamber
Implementation Method 2
The outer surface of the filter screen is arranged to be at a higher pressure than the dirt collection conduit system such that a pressure differential is arranged to be maintained between the outer surface of the filter screen and the dirt collection conduit system
Data Source
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AI summary
There is disclosed an apparatus for cleaning circular filter screens comprising at least one suction chamber fitted to a conduit of the dirt collection conduit system extending along a central axis of the housing of the filter screen. The suction chamber comprises a central nozzle through which fluid is forced to flow by virtue of a pressure differential between the outer surface of the filter screen and an extremity of the dirt collection conduit system. The fluid flow through the central nozzle creates a low pressure regime near the mouth of the central nozzle such that fluid is forced through a plurality of peripheral suction nozzles arranged around the central nozzle from the outer surface of the filter screen to the inside of the suction chamber, thereby forcing the dirt and retentate accumulated along the inner surface of the filter screen to be washed away.