CN101537260A - Evaporation method by use of turbine compression fan - Google Patents
Evaporation method by use of turbine compression fan Download PDFInfo
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- CN101537260A CN101537260A CN 200810019882 CN200810019882A CN101537260A CN 101537260 A CN101537260 A CN 101537260A CN 200810019882 CN200810019882 CN 200810019882 CN 200810019882 A CN200810019882 A CN 200810019882A CN 101537260 A CN101537260 A CN 101537260A
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- evaporator
- compression fan
- turbine compression
- pipeline
- evaporimeter
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Abstract
The invention provides an evaporation method by use of a turbine compression fan, which belongs to a solution concentrating-evaporating method. The method is characterized in that materials circulate in an evaporator pipe through a circulating pipe on the bottom and top of an evaporator; a circulating pump, a material inlet and a material outlet are arranged on the material-circulating pipe; secondary steam coming from the lower part of the evaporator enters a steam-liquid separator through a pipeline and then enters the turbine compression fan through the pipeline so as to be pressurized and heated; the heated secondary steam is connected to a heating chamber of the evaporator as a heat source; non-condensible steam coming from the top of the evaporator is connected to a condenser through the pipeline; and condensed water is discharged out from the bottom of the evaporator. The method has the advantages of remarkable steam-saving effect, evaporation operating cost which is half of the cost of the prior quadruple-effect evaporation with heat pumps, as well as low cost for entire equipment investment, and is particularly applicable to the preconcentration of large-scale treatment and low-concentration evaporation.
Description
Technical field
The invention belongs to the solution concentration method of evaporating, refer in particular to a kind of method of evaporating, particularly be fit to a large amount of weak solution evaporations, can fully save evaporation vapour with turbine compression fan.
Background technology
Traditional vaporising device is connected to form by pipelines such as evaporimeter, vapour liquid separator, condensers, material is concentrated by the heat exchange with steam in evaporimeter, save steam as far as possible in order to improve evaporation efficiency, the big colorful multiple-effect evaporation of present evaporation, promptly one imitate the thermal source of the secondary vapour of generation as 2nd effect evaporator, two imitate the thermal source of the secondary vapour of generation as triple effect evaporator.Though multiple-effect evaporation can be saved steam thermal energy greatly, in the actual production, for limited by heat transfer temperature difference, the elevation of boiling point and material evaporating temperature and equipment investment and power consumption, multiple-effect can not infinitely increase, and common multiple-effect evaporation is that triple effect to five is imitated evaporation.This evaporation equipment parts are many, the cost of investment height, and the equipment operating cost is also high.
Summary of the invention
The present invention is just in order to overcome above-mentioned deficiency, a kind of compact conformation, steam reusable edible, energy-conservation, investment is low, operating cost the is few method of evaporating with turbine compression fan are provided, main innovation is to use turbine compression fan in vaporising device, by turbine compression fan secondary vapour is carried out engine driven supercharging, improve the saturation temperature of secondary vapour, produce temperature difference, the vapor recycle that is implemented in the evaporimeter reaches energy-conservation purpose.Specifically implement like this: a kind of method of evaporating with turbine compression fan is characterized in that material circulates in evaporator tube by the circulation pipe at base of evaporator and top, is arranged with circulating pump, charging aperture and discharging opening on the material circulation pipe; The secondary vapour that comes out from the evaporimeter bottom enters turbine compression fan pressurization by pipeline and heats up after pipeline enters vapour liquid separator, the secondary vapour after the intensification inserts evaporator heating chamber and makes thermal source; The not condensing that comes out in the evaporimeter top inserts condenser by pipeline, and condensed water is discharged by base of evaporator.The used evaporimeter of the present invention is selected falling film evaporator for use, and solution circulates in the heating tube of evaporimeter by the material circulating pump in a falling film evaporator.Initial steam is given heat with live steam outside pipe, the solution ebuillition of heated is produced 60-80 ℃ secondary vapour, and the secondary vapour of generation is sucked by the turbocharging blower fan behind vapour liquid separator, after the supercharging, make the secondary stripping temperature improve 5-15 ℃, as heating the heating clamber circulating and evaporating that thermal source enters evaporimeter.Behind normal the startup, turbo-compressor sucks indirect steam, becomes heating steam after supercharging, carries out circulating and evaporating continually like this, and the moisture that evaporates finally becomes condensed water and discharges.
In order to reach good supercharging heating effect, turbine compression fan of the present invention adopts the evolute turbine compression fan, impeller angle of bend with turbine compression fan is increased to 12-16 ° simultaneously, to improve mechanical efficiency, loss reduces friction, wide/the diameter of impeller is set to≤and 0.1, the raising of compression ratio helps the raising of blast, thereby has increased the temperature difference of secondary vapour.In order to stop contacting of steam and extraneous gas, be equipped with mechanical seal on the axle of the utility model turbine compression fan motor side.
Vapour liquid separator of the present invention bottom is equipped with discharging opening, and isolated material is entered in the material circulation pipe of evaporimeter by pipeline.
Condenser of the present invention is equipped with condensation-water drain and not condensing outlet, and the condensing outlet conduit is not connected on the carbonated drink knockout drum, and the venthole at carbonated drink knockout drum top connects a vavuum pump.Like this, the not condensing of evaporimeter top discharge is just taken away by vavuum pump after condenser condenses.
Place, the steam inlet of evaporimeter of the present invention is connected with steam and replenishes pipeline, and this steam replenishes heating steam in the pipeline and only is used for replenishing and arranges the not thermal loss of condensing and a part of steam becomes condensed water after the turbine compression fan compression thermal loss.
The present invention adds and takes out the secondary vapour that evaporates by set up a turbine compression fan in evaporation equipment, after the supercharging as the thermal source of evaporimeter, has significant saving steam effect, the evaporation operating cost only is half of traditional quadruple effect band thermo-compression evaporation, the entire equipment cost of investment is low, is particularly suitable for the pre-concentration of big processing, low concentration evaporation.
Description of drawings
Fig. 1 is a process chart of the present invention.
Fig. 2 is the structure chart 1 of turbine compression fan.
Fig. 3 is the structure chart 2 of turbine compression fan.
The specific embodiment
A kind of method of evaporating with turbine compression fan, material is arranged with circulating pump 121, charging aperture 122 and discharging opening 123 by circulation pipe 12 circulation in falling film evaporator 1 pipe at falling film evaporator 1 bottom and top on the material circulation pipe; The temperature of coming out from falling film evaporator 1 bottom is that 60-80 ℃ secondary vapour enters an evolute turbine compression fan 4 pressurization intensifications by pipeline 21 after pipeline 13 enters vapour liquid separator 2, secondary vapour after intensification 5-15 ℃ inserts falling film evaporator 1 heating clamber and makes thermal source, and 16 places, steam inlet of falling film evaporator 1 also are connected with steam and replenish pipeline 17; The not condensing that comes out in falling film evaporator 1 top inserts condenser 3 by pipeline 15, and condensed water is discharged by falling film evaporator 1 bottom pipe 14; Vapour liquid separator 2 bottoms are equipped with discharging opening 22, and isolated material is entered in the material circulation pipe 12 of falling film evaporator 1 by pipeline; Condenser 3 bottoms are equipped with condensation-water drain 31 and not condensing outlet 32, and condensing does not export 32 pipelines and is connected on the carbonated drink knockout drum 5 venthole 51 connections one vavuum pump 6 at carbonated drink knockout drum 5 tops.
The impeller angle of bend of turbine compression fan 4 is 12-16 ° in this method, and wide/diameter≤0.1 of impeller is equipped with mechanical seal 43 on the axle 42 of its motor 41 ends.
This method is utilized the compression of turbo-compressor in the mechanical compress evaporimeter, electric energy is converted into gas pressure energy, with the secondary steam pressure by P
2Be increased to P
1, the secondary stripping temperature is by T
2Be increased to T
1, secondary vapour becomes heating steam, carries out the evaporation to solution again and again like this.
Claims (10)
1. the method for evaporating with turbine compression fan is characterized in that material circulates in evaporator tube by the circulation pipe at base of evaporator and top, is arranged with circulating pump, charging aperture and discharging opening on the material circulation pipe; The secondary vapour that comes out from the evaporimeter bottom enters turbine compression fan pressurization by pipeline and heats up after pipeline enters vapour liquid separator, the secondary vapour after the intensification inserts evaporator heating chamber and makes thermal source; The not condensing that comes out in the evaporimeter top inserts condenser by pipeline, and condensed water is discharged by base of evaporator.
2. method of evaporating according to claim 1 is characterized in that evaporimeter is a falling film evaporator.
3. method of evaporating according to claim 1 and 2 is characterized in that from the secondary stripping temperature that evaporimeter comes out be 60-80 ℃, and after secondary vapour sucked supercharging by turbine compression fan, the secondary stripping temperature improved 5-15 ℃.
4. method of evaporating according to claim 3 is characterized in that turbine compression fan is the evolute turbine compression fan.
5. method of evaporating according to claim 3, the impeller angle of bend that it is characterized in that turbine compression fan is 12-16 °.
6. method of evaporating according to claim 3 is characterized in that wide/diameter≤0.1 of the impeller of turbine compression fan.
7. method of evaporating according to claim 3, it is characterized in that the turbine compression fan motor side the axle on be equipped with mechanical seal.
8. method of evaporating according to claim 1 is characterized in that the vapour liquid separator bottom is equipped with discharging opening, and isolated material is entered in the material circulation pipe of evaporimeter by pipeline.
9. method of evaporating according to claim 1 is characterized in that condenser is equipped with condensation-water drain and not condensing outlet, and the condensing outlet conduit is not connected on the carbonated drink knockout drum, and the venthole at carbonated drink knockout drum top connects a vavuum pump.
10. method of evaporating according to claim 1 is characterized in that the place, steam inlet of evaporimeter is connected with the additional pipeline of steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810019882 CN101537260B (en) | 2008-03-20 | 2008-03-20 | Evaporation method by use of turbine compression fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810019882 CN101537260B (en) | 2008-03-20 | 2008-03-20 | Evaporation method by use of turbine compression fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101537260A true CN101537260A (en) | 2009-09-23 |
| CN101537260B CN101537260B (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810019882 Active CN101537260B (en) | 2008-03-20 | 2008-03-20 | Evaporation method by use of turbine compression fan |
Country Status (1)
| Country | Link |
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| CN (1) | CN101537260B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966396A (en) * | 2010-09-21 | 2011-02-09 | 广州市心德实业有限公司 | Evaporation device |
| CN102121058A (en) * | 2011-01-04 | 2011-07-13 | 长治市金泽生物工程有限公司 | Concentration evaporation method for producing glucose |
| CN102743890A (en) * | 2012-08-03 | 2012-10-24 | 赵建安 | Improved heating power vapor recompression process and special heating power vapor recompression system for same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4366675A (en) * | 1978-11-16 | 1983-01-04 | Fuji Electric Co., Ltd. | Geothermal turbine installation |
| US6092490A (en) * | 1998-04-03 | 2000-07-25 | Combustion Engineering, Inc. | Heat recovery steam generator |
| US20070235383A1 (en) * | 2006-03-28 | 2007-10-11 | Hans-Joachim Krokoszinski | Hybrid water desalination system and method of operation |
-
2008
- 2008-03-20 CN CN 200810019882 patent/CN101537260B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966396A (en) * | 2010-09-21 | 2011-02-09 | 广州市心德实业有限公司 | Evaporation device |
| CN101966396B (en) * | 2010-09-21 | 2012-07-25 | 广州市心德实业有限公司 | Evaporation device |
| CN102121058A (en) * | 2011-01-04 | 2011-07-13 | 长治市金泽生物工程有限公司 | Concentration evaporation method for producing glucose |
| CN102743890A (en) * | 2012-08-03 | 2012-10-24 | 赵建安 | Improved heating power vapor recompression process and special heating power vapor recompression system for same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101537260B (en) | 2012-12-05 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Address after: 214263 No. 13 Lihua Road, Zhoutiezhen, Yixing City, Jiangsu Province Patentee after: Jiangsu Grant drying and concentrating equipment Co., Ltd. Address before: 214263 No. 13 Lihua Road, Zhoutiezhen, Yixing City, Jiangsu Province Patentee before: Yixing Grand Drying And Concentrating Equipment Co., Ltd. |