On‑site Installation Case of Doppler Flowmeter on Inner Pipe Wall

The Doppler flowmeter is fixed on the inner wall of drainage pipe with probe immersed in water for partial‑filled sewage flow monitoring. Based on acoustic Doppler principle, it collects water level and flow velocity synchronously to calculate instantaneous flow and total sewage discharge. It works stably under harsh conditions with sediment, suspended solids and corrosive sewage. Monitoring data is transmitted via 4G to remote platform for real‑time viewing, historical data storage and over‑limit alarm. It provides reliable data support for municipal pipe‑network maintenance, sewage outlet supervision and comprehensive water‑environment treatment. Firmly installed with high protection grade, it adapts to narrow pipe space and requires simple maintenance. It is widely used in municipal rain‑sewage pipes, industrial sewage pipelines and river‑entering outlets.