FR2333542A1 - Multiple-stage evaporator having column and heat exchanger - operating with continuous temp. drop between hot and cold sources - Google Patents
Multiple-stage evaporator having column and heat exchanger - operating with continuous temp. drop between hot and cold sourcesInfo
- Publication number
- FR2333542A1 FR2333542A1 FR7536969A FR7536969A FR2333542A1 FR 2333542 A1 FR2333542 A1 FR 2333542A1 FR 7536969 A FR7536969 A FR 7536969A FR 7536969 A FR7536969 A FR 7536969A FR 2333542 A1 FR2333542 A1 FR 2333542A1
- Authority
- FR
- France
- Prior art keywords
- column
- temp
- gas
- evaporator
- hot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/14—Evaporating with heated gases or vapours or liquids in contact with the liquid
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The isobaric evaporator operates between two limits, the temp. of the hot source, e.g. the steam and the temp. of the cold source, e.g. the condenser. The evaporator incorporates a surface heat exchanger and a contact column. The number of stages of temp. drop between the hot source and the cold source is unlimited. The soln. to be evaporated enters the exchanger on the side connected to the cold source. A gas coming from the contact column enters the side connected to the hot source and flows countercurrent to the liq. Heat transfer occurs between the gas which is heated and satd. with solvent vapour in the column and the soln. which is cooled and concentrated by contact with the gas. The gas is then cooled and dehumidified in the exchanger, giving up its heat to the liq. and passing to the cold source. From there the gas is returned by a blower to the column. The hot source raises the temp. of the soln. entering the column to a value suitable for the heat exchanges. The gas used to transfer heat along the exchange system is at a constant press. The evaporator effects the total available temp. drop continuously, as distinct from the multiple effect evaporator and the stagewise expansion evaporator. It therefore gives a higher efficiency, i.e. wt. of water evaporated per unit wt. of steam consumed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7536969A FR2333542A1 (en) | 1975-12-03 | 1975-12-03 | Multiple-stage evaporator having column and heat exchanger - operating with continuous temp. drop between hot and cold sources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7536969A FR2333542A1 (en) | 1975-12-03 | 1975-12-03 | Multiple-stage evaporator having column and heat exchanger - operating with continuous temp. drop between hot and cold sources |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2333542A1 true FR2333542A1 (en) | 1977-07-01 |
| FR2333542B1 FR2333542B1 (en) | 1978-04-14 |
Family
ID=9163264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7536969A Granted FR2333542A1 (en) | 1975-12-03 | 1975-12-03 | Multiple-stage evaporator having column and heat exchanger - operating with continuous temp. drop between hot and cold sources |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2333542A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0067142A1 (en) * | 1981-06-04 | 1982-12-15 | ATELIERS SUSSMEYER SprL | Method and apparatus for automatic and continuous vaporization and condensation |
| US4507175A (en) * | 1982-04-30 | 1985-03-26 | Centre National De La Recherche Scientifique C.N.R.S. | Fractional distillation process and applications thereof to the production of thermal or mechanical energy from two low level heat sources |
| EP1690578A1 (en) * | 2003-10-29 | 2006-08-16 | The Institute of Creative Chemistry Co., Ltd. | Collecting method of liquid medium and collecting system of liquid medium |
| WO2014096736A1 (en) * | 2012-12-22 | 2014-06-26 | Starklab | Device and method for evaporating a liquid, and applications of said device and method |
-
1975
- 1975-12-03 FR FR7536969A patent/FR2333542A1/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0067142A1 (en) * | 1981-06-04 | 1982-12-15 | ATELIERS SUSSMEYER SprL | Method and apparatus for automatic and continuous vaporization and condensation |
| US4507175A (en) * | 1982-04-30 | 1985-03-26 | Centre National De La Recherche Scientifique C.N.R.S. | Fractional distillation process and applications thereof to the production of thermal or mechanical energy from two low level heat sources |
| EP1690578A1 (en) * | 2003-10-29 | 2006-08-16 | The Institute of Creative Chemistry Co., Ltd. | Collecting method of liquid medium and collecting system of liquid medium |
| EP1690578A4 (en) * | 2003-10-29 | 2007-07-04 | Inst Of Creative Chemistry Co | Collecting method of liquid medium and collecting system of liquid medium |
| US7931782B2 (en) | 2003-10-29 | 2011-04-26 | The Institute Of Creative Chemistry Co., Ltd. | Method for recovering a liquid medium and system for recover a liquid medium |
| WO2014096736A1 (en) * | 2012-12-22 | 2014-06-26 | Starklab | Device and method for evaporating a liquid, and applications of said device and method |
| FR2999950A1 (en) * | 2012-12-22 | 2014-06-27 | Starklab | DEVICE AND METHOD FOR EVAPORATING A LIQUID AND THEIR APPLICATIONS |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2333542B1 (en) | 1978-04-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |