IT1055636B - Multi-effect film evaporator - has evaporator surfaces, in effects where heat flux is critical, increased in area - Google Patents
Multi-effect film evaporator - has evaporator surfaces, in effects where heat flux is critical, increased in areaInfo
- Publication number
- IT1055636B IT1055636B IT6957275A IT6957275A IT1055636B IT 1055636 B IT1055636 B IT 1055636B IT 6957275 A IT6957275 A IT 6957275A IT 6957275 A IT6957275 A IT 6957275A IT 1055636 B IT1055636 B IT 1055636B
- Authority
- IT
- Italy
- Prior art keywords
- effect
- evaporator
- temp
- area
- effects
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Multi-effect film evaporator plant has evaporator surfaces, in those effects where the heat flux is critical in terms of scale formation or liq. film dry out, increased in area relative to the other effects. The risk of scale formation due to critical heat flux is greatest at the highest temp. effect evaporator surface and a reduction of overall temp. operating range may be avoided by having an enlarged evaporator surface area in that effect relative to the majority of the effects. The risk of dry out, i.e. complete diapperarance of liq. film, is greatest at the lowest temp. effect evaporator surface and the area of this surface is pref. enlarged relative to the majority of the effects. If the heat flux in any effect is too high instead of reducting the temp. range across the whole plant the surface area in that effect is enlarged. This reduces the temp. driving force within that effect and permits the evapn. temp. range to be restored to its full value. An overall saving in total area of evaporator surface can be achieved even through the surface area in one effect is increased.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4488074A GB1514480A (en) | 1975-09-29 | 1975-09-29 | Multieffect evaporator plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1055636B true IT1055636B (en) | 1982-01-11 |
Family
ID=10435103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT6957275A IT1055636B (en) | 1975-09-29 | 1975-10-15 | Multi-effect film evaporator - has evaporator surfaces, in effects where heat flux is critical, increased in area |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5639524Y2 (en) |
| GB (1) | GB1514480A (en) |
| IT (1) | IT1055636B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2814194B2 (en) * | 1993-09-30 | 1998-10-22 | 靖夫 青木 | Binding |
| CN105013204A (en) * | 2015-07-25 | 2015-11-04 | 王成东 | MVR (mechanical vapor recompression) type multiple-effect all-in-one evaporator |
-
1975
- 1975-09-29 GB GB4488074A patent/GB1514480A/en not_active Expired
- 1975-10-15 IT IT6957275A patent/IT1055636B/en active
- 1975-10-16 JP JP1975141690U patent/JPS5639524Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5154142U (en) | 1976-04-24 |
| JPS5639524Y2 (en) | 1981-09-16 |
| GB1514480A (en) | 1978-06-14 |
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