All-welded plate heat exchanger anticorrosive coating, preparation and coating method thereof
By employing a fluid-filling coating method using high-modulus silicate water-based inorganic coatings and nano-metal oxide fillers on fully welded plate heat exchangers, the corrosion problem of fully welded plate heat exchangers in corrosive environments has been solved, improving corrosion resistance and service life, and broadening the application range.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2025-01-17
- Publication Date
- 2026-07-17
AI Technical Summary
All-welded plate heat exchangers cannot be sprayed with anti-corrosion coating due to their non-removable structure, resulting in performance degradation in corrosive environments. Furthermore, the high cost of replacing them with special alloy materials limits their application range.
High-modulus silicate waterborne inorganic coatings are used as anti-corrosion coatings, combined with nano-metal oxides and mullite as functional fillers, and a uniform and dense anti-corrosion coating is formed on the all-welded plate heat exchanger by fluid filling coating method.
This improves the corrosion resistance and service life of fully welded plate heat exchangers, expands their application scenarios, and reduces production and time costs.
Abstract
Citation Information
Patent Citations
Plates of corrosion-resistant plate heat exchangers and their corrosion protection methods
CN109489471B