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.

CN122399428APending Publication Date: 2026-07-17XINJIANG PRODUCTION & CONSTRUCTION CORPS TIANYING PETROCHEMICAL CO LTD
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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

Technical Problem

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.

Method used

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.

Benefits of technology

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.

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Abstract

本发明提供了一种带有液位检测的浓硝酸自动补加装置,涉及化工设备技术领域,包括:罐体和过滤组件;所述罐体的一侧顶部固定连接有进料管,罐体的另一侧底部设有排出口,进料管的一侧设有过滤组件,过滤组件包括:调节阀:固定连接于进料管的一侧,调节阀的顶部安装有电动执行器,同时调节阀的顶部设有计量器;泵体:固定连接于调节阀的另一端,泵体的一端固定连接有抽取管,抽取管上固定连接有螺纹凸环,抽取管的内部开设有限位环槽;通过过滤组件的设置,通过在泵体前端设置滤网结构,可有效拦截浓硝酸介质中的结晶杂质,杜绝杂质进入泵体、调节阀内部,避免核心零部件出现卡滞、磨损问题,保障设备长期稳定运行,延长整机使用寿命。
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