Orifice Entry Plate Venturi Effect Filtration
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Solution Overview
Problem
Filtration systems face issues such as surface loading, high pressure drops, short lifespans, and complex attachment of support frames, leading to increased production and transportation costs, as well as limitations in disposal methods due to the use of metal frames.
Innovation Solution
A filter unit design featuring a non-permanently attached structural frame and an orifice-defining entry plate made of inexpensive materials like cardboard or plastic, which creates a Venturi effect to increase fluid velocity and enhance impingement filtration, thereby extending the filter's lifespan and allowing for incineration disposal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal frames are used to provide structural support for filtration devices, then structural strength and stability are improved, but manufacturing costs and transportation costs increase, and disposal options are limited
Solution Approach 1:
The patent replaces permanent metal frames with disposable paper or cardboard frames that are inexpensive to manufacture and transport. These frames provide sufficient structural support during the filter's service life and can be easily disposed of after use, eliminating the need for expensive metal frames and complex disposal processes.
Solution Approach 2:
The patent changes the material parameter from metal to paper/cardboard, transforming the frame from a permanent, expensive structure to a temporary, inexpensive structure. This parameter change maintains adequate structural strength for the application while dramatically reducing manufacturing and transportation costs.
2Stability of the object's composition
If traditional filtration designs are used, then structural stability is maintained, but pressure drop across the filter increases and lifespan decreases
Solution Approach 1:
The patent segments the filter structure into a disposable paper frame and a replaceable filter element. This segmentation allows the filter element to be optimized for filtration performance with minimal structural support requirements, reducing pressure drop while maintaining stability during operation.
Solution Approach 2:
The patent uses thin paper or cardboard frames instead of rigid metal structures. These thin-walled structures provide sufficient stability during operation but can be easily discarded after use, allowing for optimized filter element design that reduces pressure drop.
3Stability of the object's composition
If complex attachment mechanisms are used to secure support frames, then structural stability is improved, but device complexity and manufacturing costs increase
Solution Approach 1:
The patent uses simple, disposable paper or cardboard frames that require minimal or no complex attachment mechanisms. The frames are designed to be sufficiently stable during use and then easily discarded, eliminating the need for complex permanent attachment systems.
Solution Approach 2:
The patent changes the attachment approach from permanent mechanical fastening to simple insertion or friction-fit mechanisms appropriate for disposable materials. This reduces device complexity while maintaining adequate stability during the filter's service life.
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 design reduces manufacturing and transportation costs, extends filter lifespan through improved impingement filtration, and enables environmentally friendly disposal, while maintaining effective particulate capture with reduced pressure drop.
Implementation Method 1
an orifice-defining entry plate made of inexpensive materials like cardboard or plastic, which creates a Venturi effect to increase fluid velocity and enhance impingement filtration
Implementation Method 2
Filter units may be used to physically remove the components to be filtered (e.g., paint droplets, dust particles, etc.) via impingement, interception, diffusion, straining and the like
Implementation Method 3
Filter units may be used to physically remove the components to be filtered (e.g., paint droplets, dust particles, etc.) via impingement, interception, diffusion, straining and the like
Implementation Method 4
Filter units may be used to physically remove the components to be filtered (e.g., paint droplets, dust particles, etc.) via impingement, interception, diffusion, straining and the like
Data Source
AI summary
A filter unit for use With a filtrating fluid flow system is configured to receive a flow of a fluid containing particulate matter. The filter unit comprises a filter structure formed of a filter material configured to at least partially filter the particulate matter from the flow of fluid. The filter unit further comprises an entry plate located proximate the filter structure entrance. The filter structure and the entry plate together define a fluid cavity within the filter unit, the entry plate having at least one orifice defined therein through which the flow of fluid can pass into the fluid cavity. The orifice is configured to form a choke, creating a Venturi effect for temporarily increasing the velocity of the flow of fluid through the entry plate and within the fluid cavity, and onto the filter material.