Backwash Filter Element Structure with Connection Pipe
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Solution Overview
Problem
The existing backwash type filters face difficulties in effectively removing deposits from the filter medium, leading to a decrease in filtering flow rate due to their structural limitations, which hinders efficient fluid filtration.
Innovation Solution
A filter element structure featuring a pair of filter elements connected by a connection pipe, allowing fluid to flow from one filter element to the other during backwashing, enhancing the cleaning effect by generating a larger water flow that effectively washes away deposits from both the side surface and upper end of the filter medium.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional filter element structure with a closed upper end is used, then the structure is simple and easy to manufacture, but the backwashing effectiveness is insufficient and deposits remain on the filter medium
Solution Approach 1:
The filter element is segmented into multiple functional zones: the filter medium section, the upper cover with through-hole, and the connection pipe section. This segmentation allows the backwash fluid to enter through the connection pipe, flow through the upper cover's through-hole, and effectively clean deposits from the upper end of the filter medium, which was not accessible in conventional closed designs.
Solution Approach 2:
The connection pipe acts as an intermediary component that bridges the backwash fluid source and the upper end of the filter medium. It enables the backwash fluid to reach and flow through the upper cover's through-hole, creating an effective cleaning path that removes deposits from areas previously difficult to access.
2Productivity
If the upper end of the filter element is closed, then manufacturing is simpler, but water flow during backwashing is insufficient to wash away deposits from the side surface and upper end of the filter medium
Solution Approach 1:
The upper cover is designed with a through-hole that allows backwash fluid to pre-enter and accumulate at the upper end of the filter medium before flowing downward. This preliminary action ensures that deposits on the upper end and side surfaces are immediately subjected to strong water flow, enhancing cleaning effectiveness before the main backwash process begins.
Solution Approach 2:
The design adds a vertical dimension to the backwash flow path by introducing the connection pipe and upper cover through-hole. This creates a multi-dimensional flow pattern where water enters from the top, flows down through the filter medium, and exits from the bottom, ensuring comprehensive coverage of all filter medium surfaces including the previously inaccessible upper end.
3Reliability
If additional components like external power sources or control circuits are added to improve backwashing, then cleaning effectiveness increases, but device complexity and cost increase
Solution Approach 1:
The filter element structure performs its own backwashing function using the existing backwash fluid flow. The connection pipe and upper cover through-hole enable the filter element to self-clean by allowing backwash fluid to flow through it, eliminating the need for external power sources, control circuits, or additional complex mechanisms.
Solution Approach 2:
The design utilizes hydraulic principles by leveraging the existing backwash fluid flow to achieve cleaning. The connection pipe and through-hole configuration creates a hydraulic path that directs backwash fluid through the filter medium, using the fluid's own pressure and flow to remove deposits without requiring additional mechanical or electrical systems.
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 significantly improves the backwashing effectiveness, preventing a decrease in filtering flow rate without the need for additional components like external power sources or control circuits, thus maintaining efficient filtration performance.
Implementation Method 1
allowing fluid to flow from one filter element to the other during backwashing, enhancing the cleaning effect by generating a larger water flow that effectively washes away deposits
Implementation Method 2
a filter medium formed into a hollow cylindrical shape having open ends on both sides
Data Source
Figure 1
Figure 2
Figure 3(a)~3(b)
AI summary
A filter element structure 100 attached to a backwash type filter W and filtering fluid flowing within the filter includes a pair of one and the other filter elements 10, and a connection pipe 13 connecting the one filter element 10 and the other filter element 10. Each of the filter elements 10 includes a filter medium 11 formed into a hollow cylindrical shape having open ends on both sides, an upper cover 12 covering the upper end of the filter medium 11, and an upper hole 12a penetrating the upper cover 12. One end of the connection pipe 13 is connected with the one upper hole 12a, while the other end of the connection pipe 13 is connected with the other upper hole 12a.