CN1546191A - Energy conservation multiple-effect gas-carrying film lifting one-pass evaporation apparatus and method - Google Patents
Energy conservation multiple-effect gas-carrying film lifting one-pass evaporation apparatus and method Download PDFInfo
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- CN1546191A CN1546191A CNA2003101190255A CN200310119025A CN1546191A CN 1546191 A CN1546191 A CN 1546191A CN A2003101190255 A CNA2003101190255 A CN A2003101190255A CN 200310119025 A CN200310119025 A CN 200310119025A CN 1546191 A CN1546191 A CN 1546191A
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- 238000001704 evaporation Methods 0.000 title claims abstract description 36
- 230000008020 evaporation Effects 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000004134 energy conservation Methods 0.000 title 1
- 239000012159 carrier gas Substances 0.000 claims abstract description 56
- 238000010438 heat treatment Methods 0.000 claims abstract description 53
- 230000000694 effects Effects 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 43
- 239000012528 membrane Substances 0.000 claims description 15
- 238000000926 separation method Methods 0.000 claims description 9
- 239000008246 gaseous mixture Substances 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 210000000867 larynx Anatomy 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 3
- 238000010795 Steam Flooding Methods 0.000 claims description 2
- 239000012455 biphasic mixture Substances 0.000 claims description 2
- 230000000740 bleeding effect Effects 0.000 claims description 2
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 239000000284 extract Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 239000011552 falling film Substances 0.000 description 4
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The invention is a kind of energy-saving multi-effect carrier gas film one-process evaporation device which belongs to chemical evaporation technology field. It is connected with several one-process carrier gas film evaporators in series; a jet heat pressure pump is set at front of them. When in operation, cool steam is blown into the heat pressure pump, the secondary steam evaporated out by the first effect evaporation is pressured and blown into the first effect heating room as the heating steam, the secondary steam evaporated with the first effect evaporation, part of them are pumped by the heat pressure pump, the other is blown into the second effect as the heating steam, the secondary steam form the second effect evaporation is used as the heating steam in the next effect. Finally, the secondary steam out of the first effect is condensed by the spray-type contacting condenser. The sets no middle material outputting pumps. The evaporation period is short.
Description
Technical field the invention belongs to chemical industry evaporation technique field.Relate to multiple-effect gas-carrying evaporation process and equipment.
Background technology multiple-effect falling film evaporation extensive use on producing, more give birth to add before steam enters first single-effect evaporator and put an injecting type thermocompressor in heating, enter thermocompressor with living steam with elevated pressures, aspirate the indirect steam that comes out from first single-effect evaporator, thereby increased the heating steam amount of discharging, heated the first evaporation feed liquid of imitating from thermocompressor.This latent heat of vaporization that first effect is come out had been utilized indirect steam once, and when reentering first effect as heating steam, the latent heat of vaporization obtains to utilize again, has obviously saved energy consumption.Therefore, the multiple-effect falling film vaporising device with the setting of injecting type thermocompressor is very useful saving on the energy consumption.Yet in multiple-effect falling film formula vaporising device, feed liquid enters from last effect and all needs a centrifugal pump conveying when imitate back one, this just requires the expenditure of energy, and centrifugal pump carries near the feed liquid under the boiling point condition under reduced pressure, is easy to generate cavitation erosion, causes operational inconvenience.
Summary of the invention purpose of the present invention just provides a kind of cost of equipment and operating cost is lower, easy to operate, heat transfer efficiency is high energy-saving multiple-effect carrier gas membrane lifting one-pass type vaporising device and method.
Technical solution of the present invention is: create a kind of energy-saving multiple-effect gas-carrying evaporation system, add with a plurality of one-pass type carrier gas membrane lifting evaporimeters and put an injecting type thermocompressor and form.This energy-saving multiple-effect gas-carrying evaporation device comprises carrier gas evaporator and carrier gas flux meter (10), fountain direct contact type condenser (7), vavuum pump (8) and the finished product jar (9) of material fluid bath (1), feed pump (2), injecting type thermocompressor (3), a plurality of series connection.Carrier gas evaporator is made up of heating clamber (11), the vapor-liquid separation chamber (12) at top and the feed zone (13) of the carrier gas distributor (14) that the bottom is provided with formed with heating tubulation (16); Heating clamber (11) is provided with the gaseous mixture outlet (18) of heating steam inlet port (17), heating steam condensate liquid outlet (19) and incoagulable gas and steam, gaseous mixture outlet (18) links to each other with carrier gas distributor (14) in the bottom feed section, feed zone (13) also is provided with charging aperture (20), and the vapor-liquid separation chamber at top (12) is provided with foam removal baffle plate (15) and indirect steam outlet (21) and dense material outlet (22).
Carrier gas evaporator is more than 2, headed by imitate carrier gas evaporator (4), second and imitate one-pass type carrier gas evaporator (5) and end effect one-pass type carrier gas evaporator (6).
Use a kind of method of gas-carrying evaporation of energy-saving multiple-effect gas-carrying evaporation device to be: feed liquid is transported to first liquor feed liquor inlet of imitating carrier gas evaporator (4) with feed pump (2) from material fluid bath (1) and enters evaporimeter, living steam with elevated pressures enters injecting type thermocompressor (3) inlet, the indirect steam that comes out from first evaporator (4) in the suction of the casing coupling larynx neck place of injecting type thermocompressor (3), the ejiction opening of the thermocompressor of self-injection formula together (3) is discharged, obtain discharge rate and be the heating steam of the indirect steam sum of the living steam that enters and suction, enter in the shell side of first evaporator (4) heating clamber, the feed liquid in the heating fumigators makes it evaporation and concentration.One carrier gas distributor is arranged at the bottom of imitating carrier gas evaporator (4) at head, from outer introducing air in certain amount as carrier gas, when being contacted with carrier gas, feed liquid vaporizes rapidly, enter into the heating evaporation tubulation of evaporimeter, in tubulation, be heated and evaporate rapidly, forming rise membranaceous flows, the vapor-liquid separation chamber of going out the evaporimeter top in the upper end of heating tubulation, behind the foam removal baffle plate, indirect steam is discharged by the indirect steam pipeline at steamer top, wherein a part enters the heating clamber of second single-effect evaporator (5), be used for heating the feed liquid in second single-effect evaporator, a part enters the larynx low-pressure steam suction mouth that contracts of injecting type thermocompressor (3), and the steam drive of making a living supercharging is extruded by thermocompressor and to heat first the effect.Feed liquid in head is imitated should be imitated evaporation and concentration, and the feed liquid discharge pipe of this evaporimeter is discharged certainly, enters into the second single-effect evaporator charging aperture, carried out further evaporation and concentration in second imitates.In second single-effect evaporator, the gaseous mixture outlet of one steam and carrier gas is set at the heating clamber middle part, the carrier gas distributor that connects base of evaporator with pipeline, the gaseous mixture of heating steam in second effect and carrier gas is introduced in second effect as carrier gas, impel the evaporation feed liquid when entering the heating tubulation of second effect, to be the vapour-liquid biphasic mixture, strengthened the rate of climb and the evaporation rate of feed liquid in heating tube.In second imitated, second indirect steam of imitating after the foam removal, entered into next again and imitates as heating steam in the vapor-liquid separation chamber of top, and the feed liquid that obtains further concentrating therein flow to next by pipeline again and imitates as the feed liquid of being done in this effect further to be evaporated.In the end one imitate the indirect steam that (6) comes out and enter into a fountain direct condenser (7), the steam condensation is discharged, condenser (7) links a vavuum pump (8), constantly extracts on-condensible gas out to keep the necessary vacuum of vapo(u)rization system.The required concentrated feed liquid that is concentrated that the end imitates out enters the product storage tank as product, and the product storage tank links to each other with vacuum, so that discharging is discharged smoothly.
The invention has the beneficial effects as follows: owing to form multi-effect evaporation system, saved, saved cost of equipment and operating cost at the required middle feed liquid delivery pump of multiple-effect falling film vapo(u)rization system with one-pass type carrier gas membrane lifting evaporimeter, and easy to operate, be convenient to control.Owing in evaporation operation, introduced carrier gas, adopt the technology of gas-carrying evaporation, strengthen heat transfer efficiency, and reduced the thermal metamorphism of heat sensitive material.
The present invention is further described below in conjunction with the drawings and specific embodiments for description of drawings.
Fig. 1 is an equipment flowsheet of the present invention.
Wherein, 1. material fluid bath, 2. feed pump, 3. injecting type thermocompressor, 4. the first one-pass type carrier gas membrane lifting steamer of imitating 5. second is imitated one-pass type carrier gas membrane lifting steamer, and 6. one-pass type carrier gas membrane lifting steamer, 7. fountain direct contact type condenser are imitated in the end, 8. vavuum pump, 9. finished product jar, 10. carrier gas flux meter.
Fig. 2 is the one-pass type carrier gas membrane lifting evaporation structure figure among the present invention.
Wherein: 11. heating clambers, 12. vapor-liquid separation chamber, 13. the bottom feed section, 14. carrier gas distributors, 15. foam removal baffle plates, 16. heating tubulation, 17. the heating steam inlet port, the 18. mixed outlets of giving vent to anger of condensing and steam not, 19. steam condensate outlets, 20. liquor feed liquor inlet 21. indirect steam outlets, 22. concentrate material liquid outlet.
The specific embodiment has the economic benefits and social benefits one-pass type carrier gas membrane lifting evaporator system of injecting type thermocompressor at a pilot-plant of the present invention, and the heating surface (area) (HS that I is imitated is 10m
2, the heating surface (area) (HS that II is imitated is 7.5m
2, the coefficient of bleeding of thermocompressor design is 0.5, and evaporation contains the feed liquid of glucose 27% by weight percentage, and inlet amount is 1600～1800kg/h, and operation is 5kg/cm with gauge pressure
2Living steam, behind the indirect steam that thermocompressor suction I single-effect evaporator comes out, the steam pressure of ejection is 0.7～0.8kg/cm
2(absolute pressure) enters I and imitates heating clamber as heating steam.The vacuum that imitate at the end is 600～620mmhg, the glucose concentrate concentration that obtains end effect discharging is 37～40%, load is 1250～1350kg/h, it steams the living quantity of steam of 1kg water consumption is that the living steam/kg of 0.4～0.42kg steams water, smooth operation, energy-saving effect is good, and has saved middle feed liquid delivery pump, and the color and luster of dense sugared finished product more generally evaporates the product that obtains and is significantly improved.Effect is fine.
Claims (5)
1. energy-saving multiple-effect carrier gas membrane lifting one-pass type vaporising device, it is characterized in that, formed by carrier gas evaporator, fountain direct contact type condenser (7), vavuum pump (8), finished product jar (9) and the carrier gas flux meter (10) of material fluid bath (1), feed pump (2), injecting type thermocompressor (3), series connection; Carrier gas evaporator is to be made of the vapor-liquid separation chamber (12) at heating clamber (11), top and bottom feed section (13); Heating clamber (11) is made up of heating tubulation (16), and is provided with the gaseous mixture outlet (18) of heating steam inlet port (17), heating steam condensate liquid outlet (19) and incoagulability gas and steam; The vapor-liquid separation chamber at top (12) is provided with foam removal baffle plate (15) and indirect steam outlet (21) and dense material outlet (22); Bottom feed section (13) is provided with charging aperture (20) and carrier gas distributor (14), and carrier gas distributor (14) links to each other with the gaseous mixture outlet (18) of steam with incoagulability gas on the heating clamber (11).
2. a kind of energy-saving multiple-effect carrier gas membrane lifting one-pass type vaporising device according to claim 1, it is characterized in that, the carrier gas evaporator of series connection is the carrier gas membrane lifting evaporimeter of one-pass type, headed by imitate carrier gas evaporator (4), second and imitate one-pass type carrier gas evaporator (5) and end effect one-pass type carrier gas evaporator (6).
3. use the gas-carrying evaporation method of the described a kind of energy-saving multiple-effect carrier gas membrane lifting one-pass type vaporising device of claim 1, it is characterized in that: feed liquid is transported to first liquor feed liquor inlet of imitating carrier gas evaporator (4) with feed pump (2) from material fluid bath (1) and enters evaporimeter, living steam with elevated pressures enters injecting type thermocompressor (3) inlet, the indirect steam that comes out from first evaporator (4) in the suction of the sheepshank larynx neck place of injecting type thermocompressor (3), the ejiction opening of the thermocompressor of self-injection formula together (3) is discharged, obtaining discharge rate is the heating steam that enters the indirect steam sum of living steam and suction, enter in the shell side of tubulation heating clamber of first evaporator (4), the feed liquid in the heating fumigators makes it evaporation and concentration; One carrier gas distributor is arranged at the bottom of imitating carrier gas evaporator (4) at head, from outer introducing air in certain amount as carrier gas, when being contacted with carrier gas, feed liquid vaporizes rapidly, enter into the heating evaporation tubulation of evaporimeter, in tubulation, be heated and evaporate rapidly, forming rise membranaceous flows, the vapor-liquid separation chamber of going out the evaporimeter top in the upper end of heating tubulation, through the foam removal baffle plate, indirect steam is discharged by the indirect steam pipeline at steamer top, wherein a part enters the heating clamber of second single-effect evaporator (5), be used for heating the feed liquid in second single-effect evaporator, a part enters the larynx low-pressure steam suction mouth that contracts of injecting type thermocompressor (3), and the steam drive of making a living supercharging is extruded by thermocompressor and to heat first the effect.Feed liquid in head is imitated should be imitated evaporation and concentration, feed liquid discharge pipe from this evaporimeter is discharged, enter into the charging aperture of second single-effect evaporator, in second imitates, carry out further evaporation and concentration, in second single-effect evaporator, the gaseous mixture outlet of one steam and carrier gas is set at the heating clamber middle part, the carrier gas distributor that connects base of evaporator with pipeline, the gaseous mixture of heating steam in second effect and carrier gas is introduced in second effect as carrier gas, impel the evaporation feed liquid when entering the heating tubulation of second effect, to be the vapour-liquid biphasic mixture, strengthened the rate of climb and the evaporation rate of feed liquid in heating tube; In second imitated, second indirect steam of imitating after the foam removal, entered into next again and imitates as heating steam in the vapor-liquid separation chamber of top, and the feed liquid after concentrating in this effect flow to next by pipeline again and imitates as the feed liquid of further being evaporated.In the end one imitate the indirect steam that (6) comes out and enter into a fountain direct condenser, the steam condensation is discharged, condenser (7) links a vavuum pump (8), constantly extracts on-condensible gas out to keep the necessary vacuum of vapo(u)rization system.The feed liquid that has been concentrated that the end imitates out enters the product storage tank as product, and the product storage tank links to each other with vacuum, so that discharging is discharged smoothly.
4. a kind of energy-saving multiple-effect carrier gas membrane lifting one-pass type method of evaporating according to claim 3 is characterized in that, the heating surface (area) (HS that I is imitated is 10m
2, the heating surface (area) (HS that II is imitated is 7.5m
2, the coefficient of bleeding of thermocompressor is 0.5, inlet amount is 1600～1800kg/h, is 5kg/cm with gauge pressure
2Living steam, behind the indirect steam that thermocompressor suction I single-effect evaporator comes out, the steam pressure of ejection is 0.7～0.8kg/cm
2, enter I and imitate heating clamber as heating steam; The vacuum that imitate at the end is 600～620mmhg, and load is 1250～1350kg/h, and it steams the living quantity of steam of 1kg water consumption is that the living steam/kg of 0.4～0.42kg steams water.
5. a kind of energy-saving multiple-effect carrier gas membrane lifting one-pass type method of evaporating according to claim 3 is characterized in that, the potential difference that the difference of the mobile forward aftereffect evaporating pressure of feed liquid and front and back evaporimeter were installed between each was imitated reaches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101190255A CN1546191A (en) | 2003-12-08 | 2003-12-08 | Energy conservation multiple-effect gas-carrying film lifting one-pass evaporation apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101190255A CN1546191A (en) | 2003-12-08 | 2003-12-08 | Energy conservation multiple-effect gas-carrying film lifting one-pass evaporation apparatus and method |
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| Publication Number | Publication Date |
|---|---|
| CN1546191A true CN1546191A (en) | 2004-11-17 |
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| CNA2003101190255A Pending CN1546191A (en) | 2003-12-08 | 2003-12-08 | Energy conservation multiple-effect gas-carrying film lifting one-pass evaporation apparatus and method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515296A (en) * | 2011-12-30 | 2012-06-27 | 河北巴瑞斯科技发展有限公司 | Film-rising evaporation device |
| CN103055526A (en) * | 2011-10-24 | 2013-04-24 | 中国石油化工股份有限公司 | Method for evaporating cyclohexanone-oxime |
| CN103732989A (en) * | 2012-01-17 | 2014-04-16 | 阿尔斯通技术有限公司 | Tube and baffle arrangement in a once-through horizontal evaporator |
| CN104803536A (en) * | 2015-05-11 | 2015-07-29 | 河北中然制药设备有限公司 | Climbing film multi-effect water distiller |
| US9746174B2 (en) | 2012-01-17 | 2017-08-29 | General Electric Technology Gmbh | Flow control devices and methods for a once-through horizontal evaporator |
| CN107485878A (en) * | 2017-10-17 | 2017-12-19 | 济南大学 | A kind of optimal control method for improving vacuum salt production evaporation efficiency |
| CN113577802A (en) * | 2021-08-19 | 2021-11-02 | 南京金日轻工科技发展有限公司 | Extensible energy-saving evaporator |
-
2003
- 2003-12-08 CN CNA2003101190255A patent/CN1546191A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055526A (en) * | 2011-10-24 | 2013-04-24 | 中国石油化工股份有限公司 | Method for evaporating cyclohexanone-oxime |
| CN103055526B (en) * | 2011-10-24 | 2015-07-01 | 中国石油化工股份有限公司 | Method for evaporating cyclohexanone-oxime |
| CN102515296A (en) * | 2011-12-30 | 2012-06-27 | 河北巴瑞斯科技发展有限公司 | Film-rising evaporation device |
| US9989320B2 (en) | 2012-01-17 | 2018-06-05 | General Electric Technology Gmbh | Tube and baffle arrangement in a once-through horizontal evaporator |
| CN103732989A (en) * | 2012-01-17 | 2014-04-16 | 阿尔斯通技术有限公司 | Tube and baffle arrangement in a once-through horizontal evaporator |
| US10274192B2 (en) | 2012-01-17 | 2019-04-30 | General Electric Technology Gmbh | Tube arrangement in a once-through horizontal evaporator |
| CN103732989B (en) * | 2012-01-17 | 2016-08-10 | 阿尔斯通技术有限公司 | Pipe in once-through horizontal evaporator and baffle arrangement |
| US9696098B2 (en) | 2012-01-17 | 2017-07-04 | General Electric Technology Gmbh | Method and apparatus for connecting sections of a once-through horizontal evaporator |
| US9746174B2 (en) | 2012-01-17 | 2017-08-29 | General Electric Technology Gmbh | Flow control devices and methods for a once-through horizontal evaporator |
| CN104803536B (en) * | 2015-05-11 | 2017-03-08 | 河北中然制药设备有限公司 | Rise film multiple-effect formula distillation machine |
| CN104803536A (en) * | 2015-05-11 | 2015-07-29 | 河北中然制药设备有限公司 | Climbing film multi-effect water distiller |
| CN107485878A (en) * | 2017-10-17 | 2017-12-19 | 济南大学 | A kind of optimal control method for improving vacuum salt production evaporation efficiency |
| CN113577802A (en) * | 2021-08-19 | 2021-11-02 | 南京金日轻工科技发展有限公司 | Extensible energy-saving evaporator |
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