- 2025-07-22
Automatic backwash filter
Technical analysis of backwash filter
Working principle
Backwash filter is a key equipment in the water treatment industry, which realizes filter bed regeneration through reverse water flow. When the system triggers the backwash procedure, the water flows upward from the bottom of the filter bed, driving the retained particles out of the medium layer, and at the same time injecting compressed air to enhance the stripping of pollutants. This process achieves deep cleaning of the filter material and ensures continuous filtration efficiency.
Challenges
System deployment must meet strict conditions:
The foundation bearing platform must meet the seismic level
A stable high-pressure water source (≥3bar) is required during the backwash phase
The drainage system must match the peak flow rate
Antifreeze and sun protection cover must be configured for outdoor installation
Solution
FupengWater automatic backwash system relies on the pressure difference trigger mechanism to achieve unattended operation:
The intelligent control panel monitors the pressure difference in real time and automatically starts the cleaning cycle
The air-water coordinated flushing technology completely removes the blockage in the medium layer
Continuous water supply without interruption during operation
Compared with manual equipment, although the initial investment is higher, it can reduce the operation and maintenance cost by 30%, eliminate the risk of human operation, and ensure the stability of water quality.
Recommended system
Industrial multi-media filtration system (including automatic backwash unit)
Commercial integrated filtration solution
Technical advantages
Structural innovation
The closed pressure vessel design eliminates the risk of filter bed cracking and suppresses turbidity penetration
Efficiency improvement
Compared with single-media filters:
Filtration flux increased by 40%
Pressure drop reduced by 25%
Retention capacity reaches 15-25 microns
Intelligent operation and maintenance
Automatically record backwash frequency and pressure difference curve
Filter material service life extended by 2.5 times
System protection
Effectively prevent particulate matter from wearing downstream membrane components and ion exchange resins
