Corrosion protection for heat exchangers
US4800007A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 1986 |
| Grant date | Jan 24, 1989 |
| Priority date | — |
| Expiry date | May 8, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F19/004
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention relates to anodic corrosion protection for heat exchangers and comprises cathodes put into the inlet channel and the outlet channel for the corrosive medium and an anode constituted by the metal being the partition walls in the heat exchanger. The anode and the cathodes are integral parts of a direct current circuit, the amperage of which is influenced by a control reference electrode placed in the flow way for the corrosive medium. The characterizing feature of the invention is that the control reference electrode (11) is arranged in the ordinary or a separate flow way for the corrosive medium at an essential distance from the cathodes (9, 10) so that the corrosion protection of all parts of the heat exchanger, which are to be protected, is secured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.