CN202315342U - Horizontal pipe falling film evaporation tower - Google Patents
Horizontal pipe falling film evaporation tower Download PDFInfo
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- CN202315342U CN202315342U CN2011204567874U CN201120456787U CN202315342U CN 202315342 U CN202315342 U CN 202315342U CN 2011204567874 U CN2011204567874 U CN 2011204567874U CN 201120456787 U CN201120456787 U CN 201120456787U CN 202315342 U CN202315342 U CN 202315342U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
Abstract
The utility model discloses a horizontal pipe falling film evaporation tower, which comprises a cylindrical tower body, wherein the top of the tower body is provided with a steam outlet; the bottom of the tower body is provided with a material outlet; one or more stages of evaporating units are arranged vertically inside the tower body; an evaporating space and a material distributor are arranged on the upper part of each stage of evaporating unit respectively; and a material inlet is formed above the material distributor of the evaporating unit on the top. The horizontal pipe falling film evaporation tower has the advantages of simple structure, compact equipment, small floor area, saving in a large quantity of metal materials, great reduction in the equipment manufacturing cost, operation under a positive pressure or in vacuum, and wide application in the fields of chemical industry, light industry, oil refining, pharmacy, seawater desalting, and like.
Description
Technical field
The utility model belongs to the evaporation equipment technical field, is specifically related to a kind of horizontal pipe falling film evaporation tower.
Background technology
Evaporation is a kind of unit operations of chemical industry extensive use, is generally used for from the aqueous solution, removing moisture to reach the purpose that product concentrates.Because advantages such as the outer falling film evaporation technology of horizontal tube has the heat transfer coefficient height, and evaporation intensity is big are generally used in fields such as chemical industry, light industry, pharmacy, desalinization, refrigeration at present.
Each effect of conventional horizontal extratubal falling film evaporimeter is generally horizontal positioned, and these evaporimeters roughly are divided into two kinds of situation: one of which, housing are circular, and each single-effect evaporator heating surface bank adopts vertically and arranges, the direction of promptly restraining is consistent with housing direction; Its two, housing is a rectangular configuration, every single-effect evaporator heating surface bank is transverse horizontal and arranges (like patent CN101786677A); Each single-effect evaporator joins end to end, and this situation causes the draw ratio of equipment very big, and floor space increases; Maintenance inconvenience, heat loss increases in the evaporation process.If the employing cylindrical wall, then apparatus structure is compact inadequately, and processing is difficulty relatively; If the employing rectangular housing must adopt frame structure in the end of evaporimeter, the equipment that prevents produces unstable failure under high vacuum state, so equipment investment increases.
Patent CN2562830Y has introduced the outer falling film evaporation tower of a kind of horizontal tube; Its major technique characteristic is that vertical segmentation becomes respectively independently 2～11 vaporization chambers in the tower shell; Spray comb and heater are installed respectively in each vaporization chamber, and tower shell top is installed with and sprays the material liquid inlet tube that comb is connected, and material liquid is got to the top of tower through pump; Each indirect steam outlet of imitating on the vaporization chamber sidewall is connected with the heater of next effect through pipeline; The completion liquid outlet of each single-effect evaporator sidewall below is connected with the spray comb of next effect through U type pipe, has the tail vapor outlet on the sidewall of last single-effect evaporator and accomplishes liquid outlet, complex structure.
The outer falling film evaporator of existing horizontal tube is mainly used in the evaporation of product and concentrates, and is generally gas and liquid flowing, does not distill function.And independently multiple-effect adverse current falling liquid film system is adopted in the organic solvent recovery more, and floor space is big, complex equipments, and the integral device cost is higher.
The utility model content
The purpose of the utility model provides a kind of horizontal pipe falling film evaporation tower simple and compact for structure.
For achieving the above object, the technical scheme that the utility model adopts is:
A kind of horizontal pipe falling film evaporation tower comprises cylindrical tower body, and said tower body top is provided with steam (vapor) outlet, and the tower body bottom is provided with material outlet; Said tower body internal vertical is provided with one or more levels evaporation element, and every grade of evaporation element top is respectively equipped with evaporating space and material distributor, and the material distributor top of evaporated on top unit is provided with material inlet.
The tower body bottom is the tower still, and the below of tower still is provided with material outlet.
Every grade of evaporation element comprises heat exchanger tube that is the transverse horizontal layout and the tube sheet that supports the vertical setting of heat exchanger tube, and heat exchanger tube is communicated with airtight bobbin carriage; The bobbin carriage of every grade of evaporation element is provided with the thermophore import and export; Every grade of evaporation element is fixedly connected with the tower body inwall through supporting construction.
Tower body overhead vapor outlet below is provided with demister.
In the utility model, thermophore can be steam, flue gas, conduction oil, hot water or other steam; Material is got into by cat head, flows downward at horizontal extratubal falling film, through 1 grade or multistage evaporation unit; The steam that steams contains higher organic solvent concentration; Reclaim back organic solvent concentration and improve greatly, be equivalent to the distillation that has been coupled, reduced the use amount of heating steam and cooling water.The gap of the steam that in evaporation process, produces through horizontal tubulation is to rising, and material fully contacts with steam counter-flow, and organic solvent is taken away by steam; Material after solvent reduces distributes through liquid re-distributor; Falling liquid film flows down step by step, and solvent reduces step by step, and concentrate flows down outside afterbody evaporation element horizontal tube; Get into the tower still and discharge, solvent steams basically.Utilize the method for this multistage evaporation to steam solvent, heat can be fully used, and solvent recovering rate is high, and specific energy consumption is low; Because material flows down along horizontal heat exchange tube outer wall falling liquid film, is not easy fouling, therefore not only be fit to cleaning fluid, also can be used for containing the fluid of solid particle or fibre debris; The tower body that is designed is cylindrical, compares with rectangular configuration, can bear bigger pressure, can carry out positive pressure operation, also can carry out vacuumizing, and simple in structure, equipment investment can significantly reduce.
The utility model has the advantages that:
1. whole system is simple in structure, facility compact, and floor space is little, has saved a large amount of metal materials, and equipment manufacturing cost reduces greatly;
2. every grade of evaporation element vertical pile is in a tower, and material is got to the top of tower, and material is evenly dispersed in outside the horizontal tube, flows down along pipe outer wall falling liquid film, can realize multistage continuous evaporation operation; The steam that steams contains higher organic solvent concentration, reclaims back organic solvent concentration and improves greatly, is equivalent to the distillation that has been coupled;
3. the multistage evaporation process is carried out in a tower, has reduced the use amount of heating steam and cooling water, has reduced thermal loss, has improved Btu utilization efficient;
4. but the utility model positive pressure operation, but also vacuumizing can be widely used in fields such as chemical industry, light industry, oil refining, pharmacy, desalinization, can be fit to contain the occasion of solid particle, fibre debris or easy fouling.
Description of drawings
Fig. 1 is the utility model embodiment 1 structural representation;
Fig. 2 is the utility model embodiment 2 structural representations;
Fig. 3 is the utility model embodiment 3 structural representations.
The specific embodiment
Embodiment 1:
As shown in Figure 1, a kind of horizontal pipe falling film evaporation tower is made up of tower body 3, tower still 2, evaporation element 4, material inlet 5, material distributor 6, evaporating space 7, demister 8, steam (vapor) outlet 9, material outlet 1.An evaporation element 4 vertically is set in the tower body 3, and evaporation element 4 is fixed through supporting construction 4-1, and evaporation element 4 comprises bobbin carriage 4-3, tube sheet 4-4, heat exchanger tube 4-5, thermophore import 4-6 and thermophore outlet 4-2; Above evaporation element 4, be provided with material distributor 6, evaporating space 7 and demister 8; Material distributor 6 is in the bottom of evaporating space 7, and demister 8 is positioned at the top of evaporating space 7, and steam (vapor) outlet 9 is positioned at tower body 3 tops.Tower body 3 bottoms are tower still 2, and the below of tower still 2 is provided with material outlet 1.
With the alcohol distillation is example, and operating pressure is 0.1MPa in the tower, is positive pressure operation.Tower diameter φ 2m, tower height 20m, tower still 2 high 2.5m, Ta Nei establishes one-level evaporation element 4, evaporation element 4 high 12m, heat exchanger tube 4-5 external diameter is φ 32mm, and heat exchanger tube 4-5 rounded projections arranged, horizontal center spacing are 100mm, and the vertical centre spacing is 150mm; Heat medium is that inlet temperature is 130 ℃ of steam.
The alcohol waste lees solution that contains certain solid content is beaten to the body of the tower top, delivers to material distributor 6 by material inlet 5, material liquid is evenly distributed on the horizontal heat exchange tube 4-5 of evaporation element 4 through material distributor 6, and material flows down along horizontal heat exchange tube 4-5 outer wall falling liquid film; Carry out heat exchange through many row's heat exchanger tube 4-5, the poor material of alcohol is evaporated, the steam of generation is taken away contained alcohol and the moisture in material the inside; Material is fallen tower still 2 through last comb and is formed concentrate, by material outlet 1 outflow of tower still 2 bottoms.
The steam that is produced rises through the gap of horizontal tube from bottom to top, with descending material counter current contacting, is equivalent to the distillation that has been coupled; Take away most of alcohol and moisture contained in the material; Get into evaporating space 7, the fine droplet separation of entrainment with steam is fallen, further remove droplets entrained through demister 8; Discharge through steam (vapor) outlet 9 then, can pass through condensing and recycling ethanol thereafter.
Thermophore steam gets into bobbin carriage 4-3 through thermophore import 4-6, gets into then in the horizontal heat exchange tube 4-5 of evaporation element 4, and the feed liquid outer to its tube wall heats, and the condensed water after the cooling is discharged through thermophore outlet 4-2.
Embodiment 2:
As shown in Figure 2; A kind of horizontal pipe falling film evaporation tower is made up of tower body 3, tower still 2, dual evaporation unit 13, two stage material distributors 14, dual evaporation space 15, one-level evaporation element 16, material inlet 5, material distributor 6, evaporating space 7, demister 8, steam (vapor) outlet 9, material outlet 1.
2 grades of evaporation elements 13 and 16 vertically are set in the tower body 3, and dual evaporation unit 13 is positioned at tower still 2 tops, and 13-1 fixes through supporting construction, includes bobbin carriage 13-3, tube sheet 13-4, heat exchanger tube 13-5, thermophore import 13-6 and thermophore outlet 13-2; The bottom of dual evaporation unit 13 is a tower still 2, and the below of tower still 2 is provided with material outlet 1.
Above dual evaporation unit 13, be provided with two stage material distributors 14, dual evaporation space 15 and one-level evaporation element 16; One-level evaporation element 16 is positioned at 15 tops, dual evaporation space, and 16-1 fixes through supporting construction, has included bobbin carriage 16-3, tube sheet 16-4, heat exchanger tube 16-5, thermophore import 16-6 and thermophore outlet 16-2; One-level evaporation element 16 tops are provided with material inlet 5, material distributor 6, evaporating space 7, demister 8, steam (vapor) outlet 9; Material distributor 6 is in the bottom of evaporating space 7, and demister 8 is positioned at the top of evaporating space 7, and steam (vapor) outlet 9 is positioned at top of tower.
To reclaim methyl alcohol is example, is vacuumizing in the device.Methanol aqueous solution is beaten to installing the top, delivers to material distributor 6 by material inlet 5, material liquid is evenly distributed on the horizontal heat exchange tube 16-5 of one-level evaporation element 16 through material distributor 6, and material flows down along horizontal heat exchange tube 16-5 outer wall falling liquid film; Carry out heat exchange through many row's heat exchanger tubes, under vacuum state, methanol aqueous solution is evaporated, the steam of generation is taken away the contained methyl alcohol in material the inside; Material is fallen on the two stage material distributors 14 through last comb, and 14 pairs of materials of two stage material distributors distribute once more, and material is evenly distributed on the horizontal heat exchange tube 13-5 of dual evaporation unit 13, and material flows down along horizontal heat exchange tube 13-5 outer wall falling liquid film; Carry out heat exchange through many row's heat exchanger tubes once more, under vacuum state, methanol aqueous solution is evaporated, the steam of generation is taken away the contained methyl alcohol in material the inside; Material is fallen tower still 2 through last comb and is formed concentrate, by material outlet 1 outflow of tower still 2 bottoms.
The steam that is produced rises through the gap of horizontal tube from bottom to top, with descending material counter current contacting, is equivalent to the distillation that has been coupled, and takes away most of methyl alcohol contained in the material.Steam from last comb produces through dual evaporation unit 13, entering dual evaporation space 15, falls the fine droplet separation of entrainment with steam successively; Get into one-level evaporation element 16 then, get into evaporating space 7, the fine droplet with entrainment with steam separates to fall once more; Further remove droplets entrained through demister 8 again, discharge through steam (vapor) outlet 9 then, can pass through condensing and recycling methyl alcohol thereafter.
(conduction oil is during as thermophore as thermophore with conduction oil for the heating of one-level, dual evaporation unit; The thermophore import is positioned at the bobbin carriage bottom; The thermophore outlet is positioned at bobbin carriage top), conduction oil gets into bobbin carriage through the thermophore import, gets into then in the horizontal heat exchange tube bundle of evaporation element; The feed liquid outer to its tube wall heats, and discharge through the thermophore outlet conduction oil cooling back.
Embodiment 3:
As shown in Figure 3; A kind of horizontal pipe falling film evaporation tower is made up of tower body 3, tower still 2, three grades of evaporation elements 10, three stage material distributors 11, three grades of evaporating spaces 12, dual evaporation unit 13, two stage material distributors 14, dual evaporation space 15, one-level evaporation element 16, material inlet 5, material distributor 6, evaporating space 7, demister 8, steam (vapor) outlet 9, material outlet 1.
10,13 and 16, three grades of evaporation elements 10 of 3 grades of evaporation elements vertically are set in the tower body 3 are positioned at tower still 2 tops, 10-1 fixes through supporting construction, includes bobbin carriage 10-3, tube sheet 10-4, heat exchanger tube 10-5, heating steam import 10-6 and condensation-water drain 10-2; The bottom of three grades of evaporation elements 10 is a tower still 2, and the below of tower still 2 is provided with material outlet 1.
Above three grades of evaporation elements 10, be provided with 11, three grades of evaporating spaces of three stage material distributors 12 and dual evaporation unit 13; Dual evaporation unit 13 is positioned at three grades of evaporating space 12 tops, and 13-1 fixes through supporting construction, includes bobbin carriage 13-3, tube sheet 13-4, heat exchanger tube 13-5, heating steam import 13-6 and condensation-water drain 13-2;
Above dual evaporation unit 13, be provided with two stage material distributors 14, dual evaporation space 15 and one-level evaporation element 16; One-level evaporation element 16 is positioned at 15 tops, dual evaporation space, and 16-1 fixes through supporting construction, has included bobbin carriage 16-3, tube sheet 16-4, heat exchanger tube 16-5, heating steam import 16-6 and condensation-water drain 16-2; One-level evaporation element 16 tops are provided with material inlet 5, material distributor 6, evaporating space 7, demister 8, steam (vapor) outlet 9; Material distributor 6 is in the bottom of evaporating space 7, and demister 8 is positioned at the top of evaporating space 7, and steam (vapor) outlet 9 is positioned at top of tower.
To reclaim methyl alcohol is example, is vacuumizing in the tower.Tower diameter φ 1.8m, tower height 24m, tower still 2 high 2m; Establish three-stage distillation unit 10,13 and 16 in the tower, every grade of distillation high 5m in unit, the evaporating space height between adjacent two distillation unit is 1m; The heat exchanger tube external diameter is φ 25mm; Heat exchanger tube rectangular arranged, horizontal center spacing are 90mm, and the vertical centre spacing is 120mm; Heating steam is 100 ℃ of waste hot steams.
Methanol aqueous solution is beaten to the body of the tower top, delivers to material distributor 6 by material inlet 5, material liquid is evenly distributed on the horizontal heat exchange tube 16-5 of one-level evaporation element 16 through material distributor 6, and material flows down along horizontal heat exchange tube 16-5 outer wall falling liquid film; Carry out heat exchange through many row's heat exchanger tubes, under vacuum state, methanol aqueous solution is evaporated, the steam of generation is taken away the contained methyl alcohol in material the inside; Material is fallen on the two stage material distributors 14 through last comb; 14 pairs of materials of two stage material distributors distribute once more; Material is evenly distributed on the horizontal heat exchange tube 13-5 of dual evaporation unit 13, and material is fallen on the three stage material distributors 11 through last comb, and 11 pairs of materials of three stage material distributors distribute once more; Material is evenly distributed on the horizontal heat exchange tube 10-5 of three grades of evaporation elements 10, and material flows down along horizontal heat exchange tube outer wall falling liquid film; Carry out heat exchange through many row's heat exchanger tubes once more, under vacuum state, methanol aqueous solution is evaporated, the steam of generation is taken away the contained methyl alcohol in material the inside; Material is fallen tower still 2 through last comb and is formed concentrate, by material outlet 1 outflow of tower still 2 bottoms.
The steam that is produced rises through the gap of horizontal tube from bottom to top, with descending material counter current contacting, is equivalent to the distillation that has been coupled, and takes away most of methyl alcohol contained in the material.Steam from last comb produces successively through three grades of evaporation elements 10, three grades of evaporating spaces 12 of entering, falls the fine droplet separation of entrainment with steam; Get into dual evaporation unit 13 again, get into dual evaporation space 15, the fine droplet with entrainment with steam separates to fall once more; Get into one-level evaporation element 16 then, get into evaporating space 7, the fine droplet with entrainment with steam separates to fall once more; Further remove droplets entrained through demister 8 again, discharge through steam (vapor) outlet 9 then, can pass through condensing and recycling methyl alcohol thereafter.
16 heating of one-level evaporation element get into bobbin carriage 16-3 with exhaust steam through heating steam import 16-6; Get into then in the horizontal heat exchange tube 16-5 of one-level evaporation element 16; The feed liquid outer to its tube wall heats, and self carries out condensation simultaneously, and condensed water is discharged through condensation-water drain 16-2.
13 heating of dual evaporation unit get into bobbin carriage 13-3 with exhaust steam through heating steam import 13-6; Get into then in the horizontal heat exchange tube 13-5 of dual evaporation unit 13; The feed liquid outer to its tube wall heats, and self carries out condensation simultaneously, and condensed water is discharged through condensation-water drain 13-2.
Three grades of evaporation element 10 heating get into bobbin carriage 10-3 with exhaust steam through heating steam import 10-6; Get into then in the horizontal heat exchange tube 10-5 of three grades of evaporation elements 10; The feed liquid outer to its tube wall heats, and self carries out condensation simultaneously, and condensed water is discharged through condensation-water drain 10-2.
Claims (4)
1. a horizontal pipe falling film evaporation tower comprises cylindrical tower body, it is characterized in that, said tower body top is provided with steam (vapor) outlet, and the tower body bottom is provided with material outlet; Said tower body internal vertical is provided with one or more levels evaporation element, and every grade of evaporation element top is respectively equipped with evaporating space and material distributor, and the material distributor top of evaporated on top unit is provided with material inlet.
2. horizontal pipe falling film evaporation tower as claimed in claim 1 is characterized in that, the tower body bottom is the tower still, and the below of tower still is provided with material outlet.
3. according to claim 1 or claim 2 horizontal pipe falling film evaporation tower is characterized in that, every grade of evaporation element comprises and be heat exchanger tube that transverse horizontal arranges and the tube sheet that supports the vertical setting of heat exchanger tube that heat exchanger tube is communicated with airtight bobbin carriage; The bobbin carriage of every grade of evaporation element is provided with the thermophore import and export; Every grade of evaporation element is fixedly connected with the tower body inwall through supporting construction.
4. horizontal pipe falling film evaporation tower as claimed in claim 3 is characterized in that, tower body overhead vapor outlet below is provided with demister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204567874U CN202315342U (en) | 2011-11-17 | 2011-11-17 | Horizontal pipe falling film evaporation tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204567874U CN202315342U (en) | 2011-11-17 | 2011-11-17 | Horizontal pipe falling film evaporation tower |
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| Publication Number | Publication Date |
|---|---|
| CN202315342U true CN202315342U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204567874U Expired - Fee Related CN202315342U (en) | 2011-11-17 | 2011-11-17 | Horizontal pipe falling film evaporation tower |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512833A (en) * | 2011-11-17 | 2012-06-27 | 郑州大学生化工程中心 | Horizontal-pipe falling-film evaporation method coupling distillation and device thereof |
| CN108854125A (en) * | 2018-09-11 | 2018-11-23 | 首航洁能科技有限公司 | A kind of evaporation concentration device of feed liquid |
| CN114307204A (en) * | 2021-12-30 | 2022-04-12 | 大连理工大学 | Tower type concurrent feeding MVC evaporation system and design method thereof |
-
2011
- 2011-11-17 CN CN2011204567874U patent/CN202315342U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512833A (en) * | 2011-11-17 | 2012-06-27 | 郑州大学生化工程中心 | Horizontal-pipe falling-film evaporation method coupling distillation and device thereof |
| CN108854125A (en) * | 2018-09-11 | 2018-11-23 | 首航洁能科技有限公司 | A kind of evaporation concentration device of feed liquid |
| CN114307204A (en) * | 2021-12-30 | 2022-04-12 | 大连理工大学 | Tower type concurrent feeding MVC evaporation system and design method thereof |
| CN114307204B (en) * | 2021-12-30 | 2023-01-24 | 大连理工大学 | Tower type concurrent feeding MVC evaporation system and design method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141117 |
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| EXPY | Termination of patent right or utility model |