Automatic concentrated nitric acid supplementing device with liquid level detection
By installing a filter screen and an anti-rotation component in the automatic concentrated nitric acid replenishment device, the problem of impurities in concentrated nitric acid entering the pump body and valve chamber is solved, achieving stable operation and fully automatic replenishment of the equipment, and ensuring the continuity and safety of production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XINJIANG PRODUCTION & CONSTRUCTION CORPS TIANYING PETROCHEMICAL CO LTD
- Filing Date
- 2026-05-07
- Publication Date
- 2026-07-17
AI Technical Summary
In existing automatic concentrated nitric acid replenishment devices, the lack of an effective filtration structure allows crystalline particles and mechanical impurities to enter the pump body and valve chamber, causing jamming or wear, and resulting in unstable feed flow, which affects equipment operation and safety.
A filter structure is installed at the front end of the pump body, and the pipeline connection is reinforced by an anti-rotation component. Combined with a liquid level detection component, fully automatic start and stop can be achieved to prevent impurities from entering the pump body and valve, ensuring flow stability and safety.
It effectively intercepts crystalline impurities in concentrated nitric acid, prevents pump body and valve core from jamming and wearing, improves pipeline sealing and safety, realizes fully automatic continuous replenishment, and ensures production continuity and safety.
Smart Images

Figure CN122399428A_ABST