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Types of intelligent rainwater filtration devices
Date: 2025-07-07Read: 1

Intelligent rainwater filtration deviceIt refers to the use of rainwater collection and utilization systems forEfficiently and automatically filter rainwater, discharge sewage, and ensure water quality meets standardsSpecialized equipment, taking into account bothIntelligent filtration, flushing, and controlOther functions, commonly used forSponge city construction, roof rainwater recycling, landscaping, landscape water replenishment, toilet flushing and other occasions.

Compared to the traditional "manual grille+sedimentation tank" form, the intelligent rainwater filtration device hasHigh degree of automation, small footprint, easy maintenance, and good water qualityThe advantages.

1、 Working principle

After rainwater flows into the intelligent rainwater filtration device through the collection pipeline, it passes throughMulti level filtering for automated controlProcessing to achieve the goal of removing impurities, oil stains, gravel, leaves, suspended solids, etc.
The equipment is usually equipped with sensors and control systems, which can automatically adjust the operating status according to rainfall, water quality, and flow rate, and regularly backwash or discharge pollutants.

Typical process

Copy and edit roof/road rainwater ↓ Initial drainage device (direct discharge of rainwater in the first few minutes before flushing) ↓ Coarse filtration (interception of leaves, stones, and large particles by grilles/filters) ↓ Fine filtration (automatic backwashing of filters or filters to remove suspended solids) ↓ Clear water flows into reservoirs/reuse pipelines


励进石英砂过滤器(机械过滤器) (12).jpg


2、 System composition

component function
housing Carbon steel anti-corrosion/stainless steel/PE, pressure resistant and leak proof
Coarse filter unit Stainless steel grille/screen, filtering large particles and debris
Fine filtration unit 50-500 micron filter/laminated filter/quartz sand
Automatic sewage/backwash system Timed or pressure differential triggering of sewage discharge and flushing
control system PLC/intelligent control box, supporting remote monitoring
Abandoned flow module Automatic discharge of highly polluted initial rainwater






3、 Technical features

✅ Fully automatic operation, no need for manual supervision
✅ High filtering accuracy (commonly used 50)~100 μm, 可定制)
✅ Large traffic range, with a single processing capacity of up to 10~
500 m³/h
✅ Automatic discard function to ensure the quality of recycled water
✅ Can be connected to rainwater collection systems and smart water management platforms
✅ Easy to clean and maintain, long service life

4、 Typical parameters (reference)

project parameter range
Handle traffic 10~500 m ³/h (can be connected in parallel)
filtration accuracy 50~500 microns
material Carbon steel+anti-corrosion/stainless steel 304/316
Backwash method Automatic backwashing/high-pressure flushing/manual
Control method Differential pressure, timing, remote
Connection method for inlet and outlet water Flanges/Threads
Installation Method Underground/above ground/integrated box body






5、 Application scenarios

Urban roof rainwater recycling
Landscape rainwater replenishment
Daily flushing and cleaning water
Construction site water dust reduction
Sponge City Construction Supporting Facilities
Rainwater reuse in parking lots and squares


石英砂过滤器 (5).jpg


6、 Common selection suggestions

✅ Calculate the design flow based on the catchment area and rainfall intensity
✅ Select filtration accuracy according to the requirements of recycled water quality
✅ Underground selection of corrosion-resistant materials+easy to maintain structure
✅ Do you need remote access to a smart platform
✅ Determine installation space and leave maintenance access


7、 Common supporting products

  • Initial waste flow device

  • Rainwater storage tank (fiberglass, concrete, plastic module)

  • Rainwater lifting pump station

  • Underground rainwater storage tank

  • UV/ozone sterilization equipment