A concrete sewer system that facilitates dredging
By designing rectangular oval concrete sewage pipes, incorporating a built-in sludge removal system, and adding directional arrows, the challenges of municipal sewage pipe network construction and sludge removal were solved, improving construction quality and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JINAN URBAN CONSTRUCTION GROUP CO LTD
- Filing Date
- 2023-08-28
- Publication Date
- 2026-06-09
AI Technical Summary
The existing municipal sewage pipe network has problems such as insufficient compaction of backfill material during construction leading to deformation and settlement, difficulty in dredging, low safety, inconvenience in hoisting, and installation errors.
The design incorporates a rectangular concrete sewage pipe with an oval-shaped cavity, featuring tenon and groove connections, a built-in water-swellable rubber ring, a high-pressure nozzle sludge removal system, directional arrow markings, and lifting holes for easy installation.
It improves the external pressure resistance of the pipeline, reduces siltation, enables unmanned dredging, improves construction safety and efficiency, and avoids installation errors.
Smart Images

Figure CN117188589B_ABST