耐腐蚀流体管道的修补堵头及其冷修补方法
By using radial rods and lock nuts for fixing in corrosion-resistant fluid pipelines, combined with a cold repair method involving resin injection, the problems of residual internal stress and material property changes caused by welding were solved, achieving effective repair and service life extension of corrosion-resistant fluid pipelines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUAIAN COLLEGE OF INFORMATION TECH
- Filing Date
- 2024-02-04
- Publication Date
- 2026-07-17
AI Technical Summary
Existing hot repair methods generate residual internal stress and alter the material structure when welding corrosion-resistant pipes, leading to a decrease in corrosion resistance. Furthermore, the resin coating on the pipes is prone to peeling off, making it impossible to effectively repair corrosion perforations.
A repair plug made of corrosion-resistant fluid pipeline is used, which is fixed to the corrosion perforation site by radial rod and lock nut, and resin is injected to form a protective film to avoid high-temperature welding and maintain the stability of material structure.
It achieves cold repair without heat, avoiding residual internal stress and changes in material properties. The resin forms a sealing protective film, extending the service life of the repaired area. The operation is convenient and quick.
Smart Images
Figure CN117869710B_ABST