Automatic backwashing device for liquid level meter
By designing an automatic backwashing device for level gauges, utilizing the solubility of waste salt in hot water and a PLC control system, the problems of low cleaning efficiency and high cost of level gauges were solved, achieving automated cleaning, improving cleaning efficiency and measurement accuracy, and extending the service life of the level gauges.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI FENGYUAN BIOCHEMICAL CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-16
AI Technical Summary
Existing level gauges suffer from low cleaning efficiency, high cost, and lack of automation, leading to decreased measurement accuracy and shortened service life.
An automatic backwashing device for level gauges was designed. It utilizes the solubility of waste salt in hot water and achieves automated cleaning through a PLC control system. Combined with a stirrer to accelerate dissolution, the resulting cleaning solution thoroughly cleans the pipe joints and diaphragm.
The system achieves automated control of the cleaning process, reduces costs, improves cleaning efficiency and accuracy, and extends the service life of the level gauge.
Smart Images

Figure CN224359012U_ABST