Method of and apparatus for improving the heat exchange in natural-circulation and flow-through evaporators
US4124438A · kind A · utility
2Cited by
10References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 20, 1977 |
| Grant date | Nov 7, 1978 |
| Priority date | — |
| Expiry date | May 20, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D1/26
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Heat exchange is improved in natural-circulation and flowthrough evaporators in which the liquid to be evaporated is admitted to heating tubes and evaporators therein as the fluid rises in the tubes. According to the invention the liquid is preheated under a higher hydrostatic pressure than at the inlet to the heating tubes by treatment with direct steam, preferably in a steam-jacketed siphon tube forming a downcomer from a separator removing concentrate from the vapors emerging from the evaporator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.