Heat exchange device of the perforated plate exchanger type with improved sealing
US4762172A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1986 |
| Grant date | Aug 9, 1988 |
| Priority date | — |
| Expiry date | Jun 23, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S165/36
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat exchange device is provided whose exchange zone is formed of a stack of perforated plates having perforations disposed so that superimposition of the perforations creates flow spaces for at least two fluids at different temperatures, said perforated plates being separated two by two by at least one seal disposed so that each perforation of the plates corresponding to a flow space through which fluid passes is separated from the perforations corresponding to the flow spaces through which a different fluid passes, said stack being kept at a clamping pressure of 2 to 50 bars by means of a plurality of tie-rods passing through it and said seal being formed by an expanded graphite manufactured under such conditions that it has a bulk density of about 200 to 500 kg.m.sup.-3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.