CN204233805U - A kind of THF dehydrating tower reflux of improvement - Google Patents
A kind of THF dehydrating tower reflux of improvement Download PDFInfo
- Publication number
- CN204233805U CN204233805U CN201420698043.7U CN201420698043U CN204233805U CN 204233805 U CN204233805 U CN 204233805U CN 201420698043 U CN201420698043 U CN 201420698043U CN 204233805 U CN204233805 U CN 204233805U
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- rectifying column
- condenser
- tower
- pipeline
- distillate
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Abstract
The utility model relates to a kind of THF dehydrating tower reflux of improvement, it comprises rectifying column, described rectifying column top is connected with condenser top by pipeline, described condenser goes out pipe by condenser and is connected with rectifying column one upper lateral part with reflux pipeline, described condenser is gone out pipe by condenser and is distillated tower inlet pipe and distillate groove top and be connected, charging aperture is provided with on described rectifying column opposite side top, vapours import is provided with at described rectifying column one side lower part, tower reactor extraction pipeline is provided with in described rectifier bottoms, described tower reactor extraction pipeline is provided with tower reactor pump, described distillate trench bottom be provided with distillate groove go out pipe, go out pipe is provided with distillate pump at the described groove that distillates, described reflux pipeline is provided with return valve, go out on pipe to be provided with discharging control valve at the described groove that distillates.The utility model tower top temperature can accurately control, and the quality of dehydration column overhead product is improved, and backflow material relies on gravity to provide kinetic energy.
Description
Technical field
The utility model relates to a kind of dehydrating tower reflux, is specifically related to a kind of THF dehydrating tower reflux.
Background technology
At present, typical THF retracting device all adopts three tower process, and the first tower is plate type atmospheric tower, and the second tower is pressurization packed tower, and the 3rd tower is normal pressure packed tower.Wherein, the Main Function of the first tower removes most of water at the bottom of tower, and the azeotropic mixture feeding pressurizing tower that tower top obtains the THF+ water of purity about 94.5% is separated moisture content and other impurity further.
Under normal pressure, the boiling point of the azeotropic mixture of THF+ water about 64.5 DEG C, therefore, the tower top temperature of dehydrating tower should control for best near this temperature spot, the too high or too low quality that all can affect dehydrating tower product.In recovery process, this temperature realizes stable mainly through strictly controlling reflux ratio.In actual production, dehydrating tower is normal pressure, and pressurizing tower is about 8bar/g for destroying azeotropic point operating pressure.Before improvement, backflow and discharging are all connected on lime set booster pump outlet pipeline, because user's differing pressure of two strands of materials is too large, in return valve and discharging control valve, the small increase and decrease of any one aperture all can produce considerable influence to the flow of another strand of material, cause the reflux ratio fluctuation of dehydrating tower comparatively large, tower top temperature is difficult to realize stability contorting.
Summary of the invention
Goal of the invention: the purpose of this utility model is to overcome deficiency of the prior art, a kind of tower top temperature is provided accurately to control, the quality of dehydration column overhead product is improved, and backflow material relies on gravity to provide the THF dehydrating tower reflux of the improvement of kinetic energy.
Technical scheme: in order to solve the problems of the technologies described above, the THF dehydrating tower reflux of a kind of improvement described in the utility model, it comprises rectifying column, described rectifying column top is connected with condenser top by pipeline, described condenser goes out pipe by condenser and is connected with rectifying column one upper lateral part with reflux pipeline, described condenser is gone out pipe by condenser and is distillated tower inlet pipe and distillate groove top and be connected, charging aperture is provided with on described rectifying column opposite side top, vapours import is provided with at described rectifying column one side lower part, tower reactor extraction pipeline is provided with in described rectifier bottoms, described tower reactor extraction pipeline is provided with tower reactor pump, described distillate trench bottom be provided with distillate groove go out pipe, go out pipe is provided with distillate pump at the described groove that distillates, described reflux pipeline is provided with return valve, go out on pipe to be provided with discharging control valve at the described groove that distillates.
Be provided with condensed water import in bottom, described condenser one end, be provided with condensation-water drain with top, one end.
Described rectifying column is plate type atmospheric dehydrating tower.
Beneficial effect: the utility model compared with prior art, its remarkable advantage is: the utility model is transformed dehydration column overhead condensate collector tube, namely overhead reflux pipeline is distillated pump discharge from condensate liquid booster pump and moves to overhead condensation liquid collecting pipe, become mechanical pressurization backflow into gravity is from backflow, backflow material relies on gravity to provide kinetic energy, do not need booster pump to provide energy, the type selecting flow of booster pump can reduce greatly, effectively reduces the operating cost of dehydrating tower; In addition, reflux pipeline and discharging pipeline separately control, and avoid influencing each other between two control valves, the control accuracy of tower top temperature is improved, and the quality of dehydration column overhead product is guaranteed.
Accompanying drawing explanation
Fig. 1 is the structural representation before the utility model improves;
Fig. 2 is the structural representation after the utility model improves.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described.
As depicted in figs. 1 and 2, the THF dehydrating tower reflux of a kind of improvement described in the utility model, it comprises rectifying column 1, described rectifying column 1 top is connected with condenser 2 top by pipeline, described condenser 2 bottom goes out pipe 3 by condenser and is connected with rectifying column 1 one upper lateral part with reflux pipeline 4, described condenser 2 bottom is gone out pipe 3 by condenser and is distillated tower inlet pipe 5 and distillate groove 6 top and be connected, charging aperture 7 is provided with on described rectifying column 1 opposite side top, vapours import 8 is provided with at described rectifying column 1 one side lower part, tower reactor extraction pipeline 9 is provided with bottom described rectifying column 1, described tower reactor extraction pipeline 9 is provided with tower reactor pump 10, described distillate to be provided with bottom groove 6 distillate groove and go out pipe 11, go out pipe 11 is provided with distillate pump 12 at the described groove that distillates, described reflux pipeline 4 is provided with return valve 13, go out on pipe 11 to be provided with discharging control valve 14 at the described groove that distillates, be provided with condensed water import 15 in bottom, described condenser 2 one end, be provided with condensation-water drain 16 with top, one end, described rectifying column 1 is plate type atmospheric dehydrating tower.The utility model is transformed dehydration column overhead condensate collector tube, namely overhead reflux pipeline is distillated pump discharge from condensate liquid booster pump and moves to overhead condensation liquid collecting pipe, become mechanical pressurization backflow into gravity is from backflow, backflow material relies on gravity to provide kinetic energy, booster pump is not needed to provide energy, the type selecting flow of booster pump can reduce greatly, effectively reduces the operating cost of dehydrating tower; In addition, reflux pipeline and discharging pipeline separately control, and avoid influencing each other between two control valves, the control accuracy of tower top temperature is improved, and the quality of dehydration column overhead product is guaranteed.
The utility model provides a kind of thinking and method; the method and access of this technical scheme of specific implementation is a lot; the above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art, under the prerequisite not departing from the utility model principle, some improvements and modifications can also be made; these improvements and modifications also should be considered as protection domain of the present utility model, and all available prior art of each part not clear and definite in the present embodiment is realized.
Claims (3)
1. the THF dehydrating tower reflux improved, it is characterized in that: it comprises rectifying column (1), described rectifying column (1) top is connected with condenser (2) top by pipeline, described condenser (2) bottom goes out pipe (3) by condenser and is connected with rectifying column (1) upper lateral part with reflux pipeline (4), described condenser (2) bottom is gone out pipe (3) by condenser and is distillated tower inlet pipe (5) and distillate groove (6) top and be connected, charging aperture (7) is provided with on described rectifying column (1) opposite side top, vapours import (8) is provided with at described rectifying column (1) side lower part, tower reactor extraction pipeline (9) is provided with in described rectifying column (1) bottom, described tower reactor extraction pipeline (9) is provided with tower reactor pump (10), described distillate groove (6) bottom be provided with distillate groove go out pipe (11), go out on pipe (11) to be provided with and to distillate pump (12) at the described groove that distillates, described reflux pipeline (4) is provided with return valve (13), go out on pipe (11) to be provided with discharging control valve (14) at the described groove that distillates.
2. the THF dehydrating tower reflux of improvement according to claim 1, is characterized in that: be provided with condensed water import (15) in described condenser (2) bottom, one end, is provided with condensation-water drain (16) with top, one end.
3. the THF dehydrating tower reflux of improvement according to claim 1, is characterized in that: described rectifying column (1) is plate type atmospheric dehydrating tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698043.7U CN204233805U (en) | 2014-11-19 | 2014-11-19 | A kind of THF dehydrating tower reflux of improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698043.7U CN204233805U (en) | 2014-11-19 | 2014-11-19 | A kind of THF dehydrating tower reflux of improvement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204233805U true CN204233805U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420698043.7U Expired - Fee Related CN204233805U (en) | 2014-11-19 | 2014-11-19 | A kind of THF dehydrating tower reflux of improvement |
Country Status (1)
| Country | Link |
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| CN (1) | CN204233805U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105641964A (en) * | 2014-11-19 | 2016-06-08 | 无锡市兴盛新材料科技有限公司 | An improved reflux device for a THF dehydration column |
-
2014
- 2014-11-19 CN CN201420698043.7U patent/CN204233805U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105641964A (en) * | 2014-11-19 | 2016-06-08 | 无锡市兴盛新材料科技有限公司 | An improved reflux device for a THF dehydration column |
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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: 20150401 Termination date: 20151119 |
|
| EXPY | Termination of patent right or utility model |