Air preheater heat transfer surface
US5836379A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 22, 1996 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Nov 22, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28D19/044
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat transfer element for a rotary regenerative preheater has first and second heat transfer plates. The first heat transfer plate defines a plurality of generally equidistantly laterally spaced apart parallel straight notches. Each notch has adjacent double ridges extending transversely from opposite sides of the first heat transfer plate. Undulations extend between the notches. The second heat transfer plate is adjacent the first heat transfer plate and defines a plurality of generally equidistantly laterally spaced apart parallel straight flat sections. Undulations extend between the flat sections and the flat sections are spaced apart a distance generally equal to the lateral spacing of the notches. The notches of the first heat transfer plate are in contact with the flat sections of the second heat transfer plate to define channels therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.