Multi-Stage Filter Device for Continuous Backflush Reprocessing
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Solution Overview
Problem
Existing filter systems face challenges in efficiently and continuously processing large quantities of backflush fluid, particularly in high-viscosity fluids like heavy fuel oil, due to limitations in continuous operation and high costs associated with large-scale designs.
Innovation Solution
A filter device with a flow divider that bypasses the secondary stage for excess backflush quantities, incorporating a tertiary stage for coarse filtration and a backflushing device to maintain continuous operation, ensuring reliable reprocessing of backflush fluid into the process cycle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separating piston is used to transfer backflush quantity in batches, then reliable filtration is achieved at higher viscosity, but continuous operation is not possible and the system reaches limits with large quantities of backflush fluid
Solution Approach 1:
The filter device is divided into multiple filtration stages (first filtration stage with coarse filter element, second filtration stage with fine filter element, and third filtration stage with another fine filter element). This segmentation allows different stages to handle different aspects of filtration simultaneously, enabling continuous operation while maintaining reliable filtration of backflush quantities regardless of viscosity or volume.
2Quantity of substance
If large quantities of backflush fluid are processed, then complete reprocessing is achieved, but the system reaches its limits with batch processing and requires large-scale equipment
Solution Approach 1:
The backflush fluid processing is segmented into three sequential filtration stages, each handling a portion of the filtration task. This allows the system to process large quantities of backflush fluid through distributed filtering rather than requiring a single large-scale filtration unit, thereby reducing overall device complexity while maintaining high processing capacity.
Solution Approach 2:
The system employs multiple filter elements working in parallel across different stages, where each filter element handles a partial portion of the total backflush fluid. This partial action approach allows the system to scale processing capacity by adding more filter elements rather than increasing the size of individual components, avoiding excessive device complexity.
3Productivity
If backflush liquid is discharged back into the process cycle without treatment, then continuous process operation is maintained, but environmental harm occurs from polluted backflush liquid
Solution Approach 1:
The backflush liquid treatment is divided into three filtration stages that progressively clean the fluid. The first stage removes coarse contaminants, while the second and third stages remove finer particles. This segmented treatment ensures the backflush liquid is adequately cleaned before being discharged back into the process cycle, eliminating environmental harm while maintaining process continuity.
Solution Approach 2:
The system performs preliminary filtration of backflush liquid through multiple stages before discharge into the process cycle. By pre-treating the backflush liquid with coarse and fine filtration, the system ensures that contaminants are removed in advance, allowing safe discharge without environmental harm while maintaining continuous process operation.
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 reliable and continuous processing of large backflush fluid quantities, reducing the need for large-scale equipment and minimizing environmental impact by ensuring efficient reprocessing without interrupting the filtration process.
Implementation Method 1
A flow divider is inserted in the primary stage which, if a predefinable fluid quantity in the primary stage is exceeded, transfers the associated excess quantity into the tertiary stage while bypassing the secondary stage.
Implementation Method 2
The flow divider has a backflushing device which cleans it of contamination that reaches the unfiltered medium side of the primary stage.
Data Source
AI summary
A filter device, in particular for processing, for example for filtering, backflush quantities which originate from a filter which can be arranged upstream of the filter device, having a primary stage for receiving the respective backflush quantity, a secondary stage for filtering off the backflush quantity from the primary stage, and a tertiary stage for returning the purified backflush quantity into a process circuit, wherein a flow divider is inserted in the primary stage and, if a predeterminable fluid quantity in the primary stage is exceeded, forwards the associated excess quantity into the tertiary stage while bypassing the secondary stage.