Self-Cleaning Filter Mechanism Using Bernoulli Effect
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Solution Overview
Problem
Existing liquid filter systems require manual removal and reinstallation of the filter insert for cleaning, which is time-consuming and inefficient, and existing self-cleaning methods are either incomplete or costly due to the use of hydraulic or pneumatic systems.
Innovation Solution
A self-cleaning filter mechanism that allows for internal cleaning without removing the filter insert, utilizing a backwash valve, rotatable shaft, and flow cross-section reducing plates to create a pressure drop and facilitate cleaning across the entire filter surface using the Bernoulli Effect, enabling efficient cleaning without interrupting the filtration process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filter insert is manually removed and reinstalled for cleaning, then the filter can be cleaned thoroughly, but the cleaning process becomes time-consuming and reduces productivity
Solution Approach 1:
The filter insert is designed to clean itself by utilizing the existing liquid flow through the filter. The insert's structure allows liquid to pass through it during normal operation, automatically removing accumulated particles without manual intervention, thus maintaining both cleaning completeness and high productivity
Solution Approach 2:
The filter insert is designed with self-cleaning geometry from the beginning, where the flow channels and surface structure are configured to facilitate automatic particle removal during the filtration process itself, preventing accumulation before it becomes a problem
2Reliability
If hydraulic or pneumatic systems are used for self-cleaning, then cleaning effectiveness is improved, but the device complexity and cost increase
Solution Approach 1:
The system uses the existing liquid flow that passes through the filter during normal operation to perform the cleaning function. No separate hydraulic or pneumatic system is needed - the filter insert's geometry and the natural liquid flow work together to achieve effective cleaning, greatly simplifying the device
Solution Approach 2:
The liquid flow serves dual purposes: it performs the primary filtration function and simultaneously performs the cleaning function by flushing particles off the insert surface. This multi-functionality eliminates the need for dedicated cleaning systems
3Productivity
If pressure cleaning is applied to the filter insert, then cleaning speed increases, but the insert may be damaged and the process becomes more complex
Solution Approach 1:
The insert utilizes the normal operating liquid flow to clean itself gently and continuously. This self-cleaning mechanism maintains cleaning speed without requiring high-pressure external systems that could damage the insert, preserving both productivity and insert durability
Solution Approach 2:
The cleaning action is achieved through the natural parameters of the liquid flow during operation rather than introducing extreme pressure parameters. The flow rate and pressure are maintained within safe operating ranges while still achieving effective particle removal
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 effective cleaning of the filter insert without manual intervention, maintaining filtration continuity and reducing operational costs by using lower pressure values to ensure thorough surface cleaning.
Implementation Method 1
utilizing a backwash valve, rotatable shaft, and flow cross-section reducing plates to create a pressure drop and facilitate cleaning across the entire filter surface using the Bernoulli Effect
Data Source
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AI summary
In its most basic form, this invention is related to at least one filter system with inner flow or outer flow, at least one shaft (61) generated in the inner section of the filter insert (4) and laying longitudinally in the insert (4), and which has a rotational freedom, at least one back wash outlet (62) over the insert (4) and at least one back wash valve (63) enabling the opening and closing of the liquid passage from the back wash outlet (62), at least one volume separator rotating disk (64) containing at least one back wash hole (641) located between the insert (4) and the back wash outlet (62), with a connection onto the shaft (61) at its center axis, and at least one filter cleaning mechanism (6) enabling the cleaning of the dirt particles generated on the filter insert (4) without opening the filter cover, and containing at least two flow cross-section reducing plates (65) extending from both sides of the shaft (61) between the back wash hole (641) and dirty liquid inlet (3), and realizing the speedy passage of the liquid in the insert (4) through the gap between the flow cross section reducing plates (65) and the surface of the insert (4), and forming a pressure drop in that area during the speedy passage and as well as a process of cleaning on the surface of the insert (4) with the passage of the liquid from outside the insert (4) to inside.