Hydrofluoric acid resistant storage tank

By employing a composite material structure consisting of an inner lining, an anti-permeability layer, a strength layer, and an outer protective layer in the storage tank, the corrosion problem of glass fiber and basalt fiber when storing HF acid solution was solved, achieving a balance between corrosion resistance and strength in the storage tank.

CN224410293UActive Publication Date: 2026-06-26CHANGZHOU ZHONGJIE COMPOSITES
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU ZHONGJIE COMPOSITES
Filing Date
2025-06-13
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing fiber-reinforced plastic storage tanks, when storing HF acid solutions, do not have sufficient corrosion resistance due to the glass fiber and basalt fiber properties, and cannot meet the corrosion resistance requirements of special fields.

Method used

The structure is made of composite material, consisting of an inner lining, an anti-permeability layer, a strength layer, and an outer protective layer arranged from the inside out. The inner lining and strength layer are made of polyester fiber, the outer protective layer is made of glass fiber, and the anti-aging layer is made of epoxy vinyl ester resin. Each layer is bonded and fixed with resin paste to enhance the corrosion resistance and strength of the fibers.

Benefits of technology

This method effectively prevents HF acid corrosion and extends the service life of the storage tank while ensuring its strength.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224410293U_ABST
    Figure CN224410293U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of hydrogen fluoride acid-resistant storage tanks, including upper head, barrel and lower head sequentially arranged from top to bottom, upper head, barrel and lower head are cut after by hydrogen fluoride acid-resistant composite material, and assembled into storage tank.The hydrogen fluoride acid-resistant composite material sequentially includes inner lining layer, anti-permeation layer, strength layer, outer protective layer and anti-aging layer from inside to outside, and adjacent layer and layer are bonded fixed.In inner lining layer, anti-permeation layer of structure layer inside, reinforcing fiber is polyester fiber, in outer protective layer of structure layer outside, reinforcing fiber is also polyester fiber, polyester fiber can resist HF corrosion, structure layer is arranged between anti-permeation layer and outer protective layer, and glass fiber reinforced material cannot be subjected to medium corrosion by using.The storage tank structure of the utility model guarantees the corrosion resistance of storage tank while guaranteeing the strength of tank body.
Need to check novelty before this filing date? Find Prior Art