CN209500836U - A kind of azeotropic distillation device - Google Patents
A kind of azeotropic distillation device Download PDFInfo
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- CN209500836U CN209500836U CN201821957991.2U CN201821957991U CN209500836U CN 209500836 U CN209500836 U CN 209500836U CN 201821957991 U CN201821957991 U CN 201821957991U CN 209500836 U CN209500836 U CN 209500836U
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- tower
- azeotrope column
- dehydrating tower
- reboiler
- column
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Abstract
This application discloses a kind of azeotropic distillation device, including azeotrope column and dehydrating tower, azeotrope column is connected to by azeotrope column phase separation tank with dehydrating tower；Azeotrope column includes a Steam reboiler and a vapour phase reboiler；Vapour phase reboiler is located at the tower top of dehydrating tower, the condenser for namely replacing dehydrating tower original with vapour phase reboiler, and vapour phase reboiler be located at dehydrating tower tower top can the vapour phase heat to dehydration column overhead efficiently use, and then the usage amount of steam can be effectively reduced；Meanwhile the investment of recirculated water can be reduced using the vapour phase reboiler positioned at dehydration column overhead as dehydrating tower condenser.
Description
Technical field
This application involves chemical technology field more particularly to a kind of azeotropic distillation devices.
Background technique
In recent years, with the development of science and technology, the production of chemical substance and isolation technics are also more and more mature, at present to mixing
Chemical substance separation when used azeotrope column and dehydrating tower be made of equipment such as a reboiler and a condensers, into
And will appear can not the vapour phase heat to dehydration column overhead efficiently use, steam usage amount is big and recirculated water input amount is big
Problem.
It can be seen that how to improve the vapour phase heat utilization efficiency of dehydration column overhead, the usage amount and recirculated water of steam are reduced
The problem of input amount is those skilled in the art's urgent problem to be solved.
Utility model content
This application provides a kind of azeotropic distillation device, solves the vapour phase for how improving dehydration column overhead in the prior art
Heat utilization efficiency, reduce steam usage amount and recirculated water input amount the problem of.
From the above technical scheme, this application provides a kind of azeotropic distillation devices, comprising:
Azeotrope column and dehydrating tower, the azeotrope column are connected to by azeotrope column phase separation tank with the dehydrating tower；
The azeotrope column includes a Steam reboiler and a vapour phase reboiler；The vapour phase reboiler is located at described de-
The tower top of water tower.
Preferably, the dehydrating tower further includes feed preheater, and the feed preheater is for changing the material
Heat.
Preferably, further include the dehydrating tower reflux pump being connected to dehydrating tower return tank, the dehydrating tower reflux pump for pair
The material does reflux into the dehydrating tower through the first reflux self-adjusting valve after being pressurizeed or enters the feed preheater.
Preferably, the azeotrope column further includes the cooler being connected to the vapour phase reboiler.
It preferably, further include the azeotrope column reflux pump being connected to the azeotrope column phase separation tank, the azeotrope column reflux pump is used
Enter the azeotrope column through the second reflux self-adjusting valve after pressurizeing to the material to flow back.
Compared with the prior art, a kind of azeotropic distillation device provided herein, including azeotrope column and dehydrating tower, azeotropic
Tower is connected to by azeotrope column phase separation tank with dehydrating tower；Azeotrope column includes a Steam reboiler and a vapour phase reboiler；Vapour phase
Reboiler is located at the tower top of dehydrating tower, that is, the condenser for replacing dehydrating tower original with vapour phase reboiler, and vapour phase is boiled again
Device be located at dehydrating tower tower top can the vapour phase heat to dehydration column overhead efficiently use, and then steam can be effectively reduced
Usage amount；Meanwhile the throwing of recirculated water can be reduced using the vapour phase reboiler positioned at dehydration column overhead as dehydrating tower condenser
Enter.
Detailed description of the invention
For the clearer technical solution for illustrating the application, letter will be made to attached drawing needed in the embodiment below
The introduction wanted, it should be apparent that, it for those of ordinary skills, can be under the premise of not paying creativeness
It obtains other drawings based on these drawings.
Fig. 1 is a kind of azeotropic distillation apparatus structure signal provided by the embodiment of the present application.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with attached drawing, it is right
Technical solution in the embodiment of the present application carries out clear and complete description.
The core of the application is to provide a kind of azeotropic distillation device, can solve and how to improve dehydrating tower tower in the prior art
The vapour phase heat utilization efficiency on top, reduce steam usage amount and recirculated water input amount the problem of.
Fig. 1 is a kind of azeotropic distillation apparatus structure schematic diagram provided by the embodiment of the present application, as shown in Figure 1, the azeotropic
Rectifier unit includes:
Azeotrope column 101 and dehydrating tower 102, azeotrope column 101 are connected to by azeotrope column phase separation tank 103 with dehydrating tower 102；
Azeotrope column 101 includes a Steam reboiler 1011 and a vapour phase reboiler 1012；Vapour phase reboiler 1012
In the tower top of dehydrating tower 102.Several important modules are only depicted in Fig. 1, further include other modules in practical applications, this
Details are not described herein for utility model.And in practical applications, vapour phase reboiler 1012 is the tower top position for being set to dehydrating tower 102
It sets, is not drawn in Fig. 1.
Azeotropic distillation device is operated together by azeotrope column and dehydrating tower, and azeotrope column 101 is by azeotrope column phase separation tank 103 and takes off
The connection medium that the connection of water tower 102, i.e. azeotrope column phase separation tank 103 are azeotrope column 101 and dehydrating tower 102, azeotrope column phase separation tank 103
In water phase enter dehydrating tower 102 and extract alcohol etc. in water, flowed back by dehydration and return to azeotrope column 102, de- bottom waste water is sent to sewage
Processing, realizes the preparation of absolute alcohol.It specifically, is exactly by original as the vapour phase in condenser this programme of dehydrating tower 102
Reboiler 1012 replace, and by vapour phase reboiler 1012 be set to dehydrating tower 102 tower top so that dehydrating tower 102 tower top vapour
Phase heat is effectively used, and effectively reduces the usage amount of steam, in practical applications, can save steam about 3.5t/h.Positioned at de-
The overhead vapor phase reboiler 1012 of water tower 102 can effectively reduce the investment of recirculated water as the condenser of dehydrating tower 102, in reality
In the application of border, recirculated water about 600t/h can be saved.In practical operation, azeotrope column 101 passes through azeotrope column phase separation tank 103 and dehydration
The connection of tower 102 uses, and then realizes the separation to the mixed material flowed into.
A kind of azeotropic distillation device provided herein, including azeotrope column and dehydrating tower, azeotrope column pass through azeotrope column point
Phase tank is connected to dehydrating tower；Azeotrope column includes a Steam reboiler and a vapour phase reboiler；Vapour phase reboiler is located at dehydration
The tower top of tower, that is, the condenser for replacing dehydrating tower original with vapour phase reboiler, and vapour phase reboiler is located at dehydrating tower
Tower top can the vapour phase heat to dehydration column overhead efficiently use, and then the usage amount of steam can be effectively reduced；Meanwhile benefit
Use the vapour phase reboiler positioned at dehydration column overhead that can reduce the investment of recirculated water as dehydrating tower condenser.
In order to prevent when being separated to mixed material, made since the heat of mixed material is excessively high, and then to certain towers
The problem of at damage, on the basis of the above embodiments, preferably embodiment, dehydrating tower 102 further include feeding preheating
Device 1020, feed preheater 1020 is for exchanging heat to material.Particularly as being to take away mixture by feed preheater 1020
A part of heat of material, makes the heat of mixed material be in normal value.
In order to improve the separative efficiency of mixed material, on the basis of the above embodiments, preferably embodiment, is gone back
Including the dehydrating tower reflux pump being connected to dehydrating tower return tank, dehydrating tower reflux pump for after pressurizeing to material through first time
Stream self-adjusting valve, which enters dehydrating tower 102, to be done reflux or enters feed preheater 1020.
Particularly as being material in dehydrating tower return tank after the pressurization of dehydrating tower reflux pump, a part through reflux self-adjusting valve into
Enter dehydrating tower 102 to flow back, a part of feed preheater 1020 through dehydrating tower 102 to the feed material in dehydrating tower 102 into
Converge through self-adjusting valve and methanol materials at bottom of tower into azeotrope column 101 after row heat exchange.
In order to further decrease the heat of mixed material, on the basis of the above embodiments, preferably embodiment,
Azeotrope column 101 further includes the cooler being connected to vapour phase reboiler 1012.
Particularly as being to cool down by cooler to the mixed material flowed through, the heat of mixed material is made to be in normal model
In enclosing.
In order to further increase the separative efficiency of mixed material, on the basis of the above embodiments, preferably implement
Mode further includes the azeotrope column reflux pump being connected to azeotrope column phase separation tank 103, and azeotrope column reflux pump is for pressurizeing to material
Enter azeotrope column 101 by the second reflux self-adjusting valve to flow back.
Particularly as being to enter azeotropic lime set cooler after tower top reaches certain temperature to be cooled down, enter azeotropic after cooling
Tower phase separation tank 103, the fixed gas in azeotrope column phase separation tank 103 enter azeotrope column 101 tail cooler it is cooling after enter return tank, no
Solidifying gas enters engine manifold.Return tank mends hexamethylene to certain liquid level and tower top lime set in return tank split-phase, hexamethylene phase in advance
After the pressurization of azeotrope column reflux pump, the self-adjusting valve that flowed back enters azeotrope column 101 and flows back, and hexamethylene rises in azeotrope column 101 and follows
Ring effect.Water phase through azeotrope column 101 extraction pump pressurization after, through extraction self-adjusting valve into dehydrating tower 102 feed preheater 1020
It is fed to stripper.
In order to make those skilled in the art more fully understand this programme, this programme is carried out below with reference to practical application scene
It is described in detail.In practical applications, with the equipment of 102 cooperating of azeotrope column 101 and dehydrating tower there are also crude tower, stripper,
12 isobutanol column, butanol tower, methanol column, lightness-removing column, ethanol tower, isopropanol tower, propyl alcohol tower and useless methanol column rectifying columns
And its auxiliary device, mainly the workflow of azeotrope column 101 and dehydrating tower 102 is illustrated in the embodiment of the present application,
The workflow of its tower can be found in the prior art, and details are not described herein for the utility model.Specifically, methanol column bottom reaches certain temperature
After degree, liquid level, after the pressurization of methanol column column bottoms pump, enter azeotrope column 101 through tower bottom extraction self-adjusting valve, when the tower of azeotrope column 101
Top is cooled down after reaching certain temperature into azeotropic lime set cooler, and azeotrope column phase separation tank 103, azeotrope column point are entered after cooling
Fixed gas in phase tank 103 enters return tank after entering the cooling of azeotrope column tail cooler, and fixed gas enters engine manifold.Return tank mentions
Preceding benefit hexamethylene is to certain liquid level and tower top lime set in return tank split-phase, and hexamethylene is mutually after the pressurization of azeotrope column reflux pump, through returning
Stream self-adjusting valve enters azeotrope column 101 and flows back, and hexamethylene plays ringing in azeotrope column 101.Water phase adds through azeotrope column extraction pump
After pressure, the feed preheater that dehydrating tower 102 is entered through producing self-adjusting valve is fed to stripper.The tower bottom of azeotrope column 101 reaches one
After determining temperature, liquid level, the column bottoms pump (water content, cyclohexane content must reach norm controlling) through azeotrope column 101 is adopted through tower bottom
Out after self-adjusting valve pressurization, follow-up work is done into dehydrating tower 102.Material from 101 overhead extraction of azeotrope column pump is through dehydrating tower
102 exchange heat into feed preheater feeds to stripper.The tower top of azeotrope column 101 reach certain temperature after (be equipped with safety valve with
The overhead vapours of azeotrope column 101 is connected) enter azeotrope column 101 vapour phase reboiler exchanged heat after lime set flow back into dehydrating tower
Tank, the top gaseous phase of another strand of dehydrating tower 102 are directly entered dehydrating tower return tank through self-adjusting valve, and return tank tail gas is into dehydrating tower
Liquid is into return tank after 102 tail cooler is cooling, and fixed gas is into engine manifold.Dehydrating tower return tank material is through dehydrating tower reflux pump
After pressurization, a part through reflux self-adjusting valve to dehydrating tower 102, a part into dehydrating tower feed preheater to dehydrating tower 102 into
Material material converges through self-adjusting valve and methanol materials at bottom of tower into azeotrope column 101 after being exchanged heat.The tower bottom bottom of dehydrating tower 102 reaches
After certain temperature, liquid level, drainage index are up to standard, self-adjusting valve is produced through wastewater heat exchange device heat exchange heel row to sewage treatment through tower bottom
It stands.
Those skilled in the art will readily occur to its of the application after considering specification and practicing application disclosed herein
His embodiment.This application is intended to cover any variations, uses, or adaptations of the application, these modifications, purposes or
Person's adaptive change follow the general principle of the application and include common knowledge in the art disclosed in the present application or
Conventional techniques.Description and embodiments are considered only as exemplary, and the just true range of the application is pointed out by claim.
It should be understood that the application is not limited to the precise structure that has been described above and shown in the drawings, and
And it can carry out various modifications and change without departing from the scope again.Above-described the application embodiment is not constituted to this Shen
Please protection scope restriction.
Claims (5)
1. a kind of azeotropic distillation device characterized by comprising
Azeotrope column and dehydrating tower, the azeotrope column are connected to by azeotrope column phase separation tank with the dehydrating tower；
The azeotrope column includes a Steam reboiler and a vapour phase reboiler；The vapour phase reboiler is located at the dehydrating tower
Tower top.
2. azeotropic distillation device according to claim 1, which is characterized in that the dehydrating tower further includes feed preheater,
The feed preheater is for exchanging heat to material.
3. azeotropic distillation device according to claim 2, which is characterized in that further include be connected to dehydrating tower return tank it is de-
Water tower reflux pump, the dehydrating tower reflux pump are described de- for entering after pressurizeing to the material through the first reflux self-adjusting valve
Water tower does reflux or enters the feed preheater.
4. azeotropic distillation device according to claim 1, which is characterized in that the azeotrope column further include with the vapour phase again
Boil the cooler of device connection.
5. azeotropic distillation device according to claim 2, which is characterized in that further include being connected to the azeotrope column phase separation tank
Azeotrope column reflux pump, the azeotrope column reflux pump is for entering institute through the second reflux self-adjusting valve after pressurizeing to the material
Azeotrope column is stated to flow back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821957991.2U CN209500836U (en) | 2018-11-26 | 2018-11-26 | A kind of azeotropic distillation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821957991.2U CN209500836U (en) | 2018-11-26 | 2018-11-26 | A kind of azeotropic distillation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209500836U true CN209500836U (en) | 2019-10-18 |
Family
ID=68190403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821957991.2U Active CN209500836U (en) | 2018-11-26 | 2018-11-26 | A kind of azeotropic distillation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209500836U (en) |
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2018
- 2018-11-26 CN CN201821957991.2U patent/CN209500836U/en active Active
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 750411 east side of Jingwu Road, Ningdong Coal Chemical Industry Park, Yinchuan City, Ningxia Hui Autonomous Region Patentee after: Ningxia Ruiyuan Fine Chemical Co.,Ltd. Address before: 750411 east side of Jingwu Road, Ningdong Coal Chemical Industry Park, Yinchuan City, Ningxia Hui Autonomous Region Patentee before: Ningxia Ruiyuan Petrochemical Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |