Filter Bag Restraint in Suction Cleaners for Stable Fluid Flow
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Solution Overview
Problem
The existing suction apparatuses for cleaning purposes, particularly used with core boring machines, face inefficiencies in generating negative pressure and risk of fluid scattering, leading to reduced performance and potential blockage of the fluid stream due to the expansion of the filter element.
Innovation Solution
The suction apparatus incorporates a filter bag with a restraining part that separates the container interior into a filter bag accommodating space and a fluid delivery space, preventing the filter bag from expanding into the fluid delivery space, ensuring effective separation of particles and reliable fluid delivery without blocking the suction subassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a bag-like filter element is used without a restraining part, then the filter element can expand to increase filtering area, but the filter element expands into the fluid delivery space and blocks the fluid stream to the suction subassembly
Solution Approach 1:
The container interior is segmented into two distinct spaces by the filter element restraining part: a filter bag accommodating space and a fluid delivery space. This segmentation allows the filter bag to expand within its designated space without interfering with the fluid delivery path to the suction subassembly, thus maintaining both filtering area and fluid delivery reliability.
2Productivity
If the filter element is allowed to expand freely, then filtering capacity increases, but fluid particles scatter and moisten the cartridge filter reducing suction apparatus performance
Solution Approach 1:
The filter element restraining part extracts and removes the harmful effect of uncontrolled filter bag expansion. By providing a physical barrier that limits expansion to a specific accommodating space, it prevents fluid particles from scattering and moistening the cartridge filter, thus maintaining suction apparatus performance while allowing adequate filtering capacity.
3Reliability
If a cartridge filter is used at the entry side of the suction subassembly, then fluid particles are filtered, but the suction apparatus becomes more complex and the cartridge filter requires maintenance
Solution Approach 1:
The invention replaces the reusable cartridge filter with a disposable filter bag that can be easily removed and replaced. The filter bag is designed as a simple, inexpensive component that is discarded when clogged, eliminating the complexity of cartridge filter installation, sealing, and maintenance while providing effective fluid particle filtration.
4Area of stationary object
If the filter bag accommodating space is made large to allow filter bag expansion, then filtering area increases, but the fluid delivery space becomes reduced limiting fluid flow
Solution Approach 1:
The filter bag is designed to expand in a specific dimensional configuration within the accommodating space, utilizing vertical and radial dimensions while maintaining a compact footprint. This dimensional arrangement allows the filter bag to achieve sufficient filtering area without encroaching on the fluid delivery space, maintaining both filtering capacity and fluid flow volume.
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
This configuration achieves a high filter efficiency, prevents fluid displacement, and ensures continuous fluid delivery by maintaining the filter bag's shape, thus enhancing the overall performance and reliability of the suction apparatus.
Implementation Method 1
negative pressure generated by the suction subassembly
Implementation Method 2
the particles of dirt are restrained by the filter element
Data Source
AI summary
A suction apparatus for cleaning purposes includes a container, a suction subassembly, a filter element arranged in a container interior, and a pumping subassembly, where a mixture of a carrier fluid and particles of dirt can be taken in via a suction inlet and the particles of dirt are restrained by the filter element. The filter element is a filter bag through which the mixture is taken in by the suction subassembly. A filter bag restraining part subdivides the container interior into a filter bag accommodating space and a fluid delivery space, where the filter bag is arranged in the filter bag accommodating space and is prevented, by the filter bag restraining part, from expanding into the fluid delivery space, from which carrier fluid flowing around, or through, the filter bag restraining part is delivered by the pumping subassembly.