Backwash Filtration Valve With Bend-Free Flow Path
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Solution Overview
Problem
Existing backflush filtration systems suffer from significant liquid waste and kinetic energy loss during the backflush mode, leading to increased pumping power requirements and costs.
Innovation Solution
The filtration system incorporates a common valve with a linearly movable plug and a design that maintains an uninterrupted bend-free flow-channel, reducing fluid waste and energy loss by minimizing the volume of fluid evacuated during transitions between filtration and backflush modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a conventional backflush filtration system is used, then the filtration function is achieved, but significant liquid waste and kinetic energy loss occur during backflush mode
Solution Approach 1:
The flow channel is segmented into distinct zones: a bend-free section from inlet to valve, and a controlled evacuation section. This segmentation allows the system to maintain high-velocity flow for filtration while separately managing the backflush evacuation path, reducing kinetic energy loss during mode transitions.
Solution Approach 2:
The system pre-configures the flow channel geometry before backflush operation begins. The bend-free flow channel is established in advance during filtration mode, and the valve is positioned to minimize evacuation volume. This preliminary configuration reduces the sudden kinetic energy loss that occurs during mode switching.
2Loss of substance
If a conventional backflush filtration system is used, then the filtration function is achieved, but significant liquid waste occurs during backflush mode
Solution Approach 1:
The invention extracts and eliminates the unnecessary bend section from the flow channel that exists in conventional systems. By removing this redundant path, the system reduces the volume of liquid that must be evacuated during backflush mode, directly reducing liquid waste while maintaining filtration effectiveness.
Solution Approach 2:
The system pre-configures the flow channel geometry before backflush operation begins. The bend-free flow channel is established in advance during filtration mode, and the valve is positioned to minimize evacuation volume. This preliminary configuration reduces the sudden kinetic energy loss that occurs during mode switching.
3Loss of energy
If a bend-free flow channel is implemented, then kinetic energy loss is reduced, but the valve design becomes more complex
Solution Approach 1:
The common valve integrates multiple functions: it serves as the flow control valve for both filtration and backflush modes, and simultaneously acts as the geometry-defining element for the bend-free flow channel. By merging these functions into a single component, the design achieves energy efficiency without proportionally increasing overall system complexity.
Solution Approach 2:
The common valve is designed as a multi-functional component that handles both normal filtration flow control and backflush evacuation control. Its housing structure simultaneously provides the bend-free flow channel geometry and the valve seating surfaces. This universality reduces the need for separate specialized components.
Data Source
AI summary
A filtration system is disclosed, which comprises a filtration-element within a filtration chamber, and a valving device located exteriorly to the filtration chamber, for reversing the direction of fluid-flow through the filtration-element for backwashing. The valving device thus functions as a common valve for handling both filtration and backwash. The common valve is based on a linearly-movable plug located inside a valve housing which is communicable with the filtration chamber, with a source of fluid to be filtered, and with evacuation port for backwash fluid, through three respective openings in the valve housing, and is characterized by an uninterrupted bend-free flow-channel extending at least from exteriorly to an inlet opening of the valve housing, to the body of the filtration-element whenever the common valve is in a filtration mode of operation.