Method and composite for preparing heat exchangers for corrosive environments
US10400129B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2013 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Aug 1, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28D7/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An apparatus protected by corrosion resistance coating, said apparatus comprises an enclosure and heat exchanging elements contained therein wherein the heat exchange element and the enclosure are coated with fluoropolymer composites filled with thermally conductive and thermally insulating fillers, respectively. The composites contain: i) at least one fluoropolymer, and in a preferred embodiment the fluoropolymer is perfluoroalkoxy (PFA), and ii) at least one thermally conductive or insulating filler, and in a preferred embodiment the thermally conductive filler is graphite and the thermally insulating filler is carbon black. The thermally conductive filler is added to the coating for heat exchange elements, e.g. tubes, plates, fins, etc., to enhance heat transfer, while the thermally insulating filler is added to the coating for enclosures, e.g. shell, tube sheets, etc., to reduce the heat transfer to the environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.