CN210613662U - Vertical evaporation column - Google Patents
Vertical evaporation column Download PDFInfo
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- CN210613662U CN210613662U CN201921379674.1U CN201921379674U CN210613662U CN 210613662 U CN210613662 U CN 210613662U CN 201921379674 U CN201921379674 U CN 201921379674U CN 210613662 U CN210613662 U CN 210613662U
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Abstract
A vertical evaporation column comprises a reaction kettle, wherein a cylindrical opening part is fixedly arranged at the upper end of the reaction kettle, the axis of the opening part is vertically arranged, a first tower body, a second tower body and a third tower body are sequentially arranged above the opening part from bottom to top, wherein first tower body, second tower body and third tower body all with the coaxial setting of opening and first tower body, second tower body and third tower body end to end fixed intercommunication, the lower extreme of first tower body is passed through lower flange fixed connection with the upper end of opening, the upper end of first tower body passes through well flange fixed connection with the lower extreme of second tower body, the upper end of second tower body passes through upper flange fixed connection with the lower extreme of third tower body, the whole sealed setting of upper end opening of third tower body, the upper portion of third tower body is provided with vapor outlet, the inside of first tower body and second tower body all is provided with pall ring packing layer, the inside of third tower body is provided with shell and tube heat exchanger. In a word, the utility model provides the high cooling separation effect of water and raw materials, resources are saved.
Description
Technical Field
The utility model relates to a chemical industry field, concretely relates to vertical evaporation column.
Background
In the esterification reaction process, the raw materials in the reaction kettle, namely, dihydric alcohol (ethylene glycol, propylene glycol) and dibasic acid (phthalic anhydride, maleic anhydride) are heated, esterification reaction is carried out to generate water, the water becomes water vapor in a high-temperature environment, the water vapor can take away raw materials therein to escape, so that the waste of the raw materials is not only caused, but also the environment is polluted, therefore, an evaporation column is required to be used for carrying out cooling separation treatment on the water vapor, the water and the raw materials are utilized to have different boiling points, the water and the raw materials are separated, the existing evaporation column adopts an internally arranged tubular heat exchanger to carry out cooling separation treatment on the water vapor, as the tubular heat exchanger is a straight-through pipe, the cooling separation effect is poor, most of the raw materials can still be taken away by the water vapor, the waste of the raw materials and the increase of the production cost are caused, the waste water generated after the.
SUMMERY OF THE UTILITY MODEL
The utility model provides a vertical evaporation column, the technical problem that solve is: the cooling separation effect of water and raw materials is improved, and resources are saved.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a vertical evaporation column comprises a reaction kettle, wherein a cylindrical opening part is fixedly arranged at the upper end of the reaction kettle, the axis of the opening part is vertically arranged, a first tower body, a second tower body and a third tower body are sequentially arranged above the opening part from bottom to top, the first tower body, the second tower body and the third tower body are coaxially arranged with the opening part, the first tower body, the second tower body and the third tower body are fixedly communicated end to end, the lower end of the first tower body is fixedly connected with the upper end of the opening part through a lower flange, the upper end of the first tower body is fixedly connected with the lower end of the second tower body through a middle flange, the upper end of the second tower body is fixedly connected with the lower end of the third tower body through an upper flange, the upper end opening of the third tower body is integrally sealed, and a steam outlet is formed in the upper part; and pall ring packing layers are arranged in the first tower body and the second tower body, and a tube type heat exchanger is arranged in the third tower body.
Preferably, the tower diameter of the first tower body is larger than the inner diameter of the opening.
Preferably, the tower diameter of the first tower is equal to the tower diameter of the second tower.
Preferably, the tower diameter of the first tower is equal to the tower diameter of the third tower.
Preferably, the distance between the opening and the water vapour outlet is greater than 4 metres.
Preferably, the water vapor outlet is connected with a condenser through a pipeline.
Compared with the prior art, the beneficial effects of the utility model are that: the pall ring packing layer is arranged in the tower body and is matched with the tube type heat exchanger for use, water vapor mixed with raw materials and coming out of the opening part in the reaction kettle firstly passes through the pall ring packing layer to reduce the flow speed and pressure of the water vapor, then the tube type heat exchanger carries out further cooling separation treatment on the water vapor, the materials flow back to the reaction kettle, the water vapor is discharged through the water vapor outlet, the pall ring packing layer enhances the backflow effect, and the subsequent separation effect is more obvious; the multi-section connection is adopted, so that the installation, maintenance and repair are convenient; the distance between opening and the vapor outlet is greater than 4 meters, has not only increased the time and the distance that vapor rises for vapor temperature descends more, makes things convenient for follow-up shell and tube heat exchanger to carry out the cooling separation processing to vapor, also makes the high temperature region of shell and tube heat exchanger principle reation kettle body, and the shell and tube outer wall in the shell and tube heat exchanger is difficult for scaling, and the cooling effect is better, and the cycle of operation is longer. In a word, the utility model provides the high cooling separation effect of water and raw materials, resources are saved.
Drawings
Fig. 1 is a general schematic diagram of the present invention.
In the figure: 1. the tower comprises a reaction kettle, 2 parts of an opening part, 3 parts of a first tower body, 4 parts of a pall ring packing layer, 5 parts of a second tower body, 6 parts of a third tower body, 7 parts of a steam outlet, 8 parts of a shell and tube heat exchanger, 9 parts of an upper flange, 10 parts of a middle flange, 11 parts of a lower flange.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Example (b): as shown in fig. 1, the utility model provides a vertical evaporation column, which comprises a reaction kettle 1, wherein a cylindrical opening 2 is fixedly arranged at the upper end of the reaction kettle 1, the axis of the opening 2 is vertically arranged, a first tower body 3, a second tower body 5 and a third tower body 6 are sequentially arranged above the opening 2 from bottom to top, wherein the first tower body 3, the second tower body 5 and the third tower body 6 are coaxially arranged with the opening 2, the first tower body 3, the second tower body 5 and the third tower body 6 are fixedly communicated end to end, the lower end of the first tower body 3 is fixedly connected with the upper end of the opening 2 through a lower flange 11, the upper end of the first tower body 3 is fixedly connected with the lower end of the second tower body 5 through a middle flange 10, the upper end of the second tower body 5 is fixedly connected with the lower end of the third tower body 6 through an upper flange 9, as a preferable mode, the tower diameter of the first tower body 3 is larger than the inner diameter of the, the tower diameter of the first tower body 3 is equal to that of the second tower body 5, the tower diameter of the first tower body 3 is equal to that of the third tower body 6, an opening at the upper end of the third tower body 6 is arranged in a sealing mode, a steam outlet 7 is arranged at the upper portion of the third tower body 6, the steam outlet 7 is connected with a condenser through a pipeline, and the distance between the opening portion 2 and the steam outlet 7 is larger than 4 meters in the embodiment; the inside of first tower body 3 and second tower body 5 all is provided with pall ring packing layer 4, and the inside of third tower body 6 is provided with shell and tube heat exchanger 8.
In the practical use process of the vertical evaporation column provided by the utility model, the water vapor mixed with the raw materials in the reaction kettle 1 firstly passes through the pall ring packing layer 4 in the first tower body 3 and the pall ring packing layer 4 in the second tower body 5 after coming out from the opening part 2, the pall ring packing layer 4 reduces the flow rate and the pressure of the water vapor, then the tubular heat exchanger 8 in the third tower body 6 further cools and separates the water vapor, the material flows back to the reaction kettle, the clean water vapor is discharged through the water vapor outlet 7 and condensed into liquid water through the condenser, in actual production, the COD value of the production wastewater obtained by condensation before transformation is 80-100 ten thousand mg/L, and the COD value of the production wastewater obtained by condensation after transformation is reduced to 10-20 ten thousand mg/L, so that the cooling separation effect of water and raw materials is greatly improved, and the environmental protection requirement is met. In a word, the utility model provides the high cooling separation effect of water and raw materials, resources are saved.
The principle and the embodiment of the present invention have been explained by using specific examples, and the description of the above embodiments is only used to help understand the method and the core idea of the present invention, it should be pointed out that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and these modifications and modifications also fall into the protection scope of the claims of the present invention.
Claims (6)
1. A vertical evaporation column is characterized in that: comprises a reaction kettle (1), the upper end of the reaction kettle (1) is fixedly provided with a cylindrical opening part (2), the axis of the opening part (2) is vertically arranged, a first tower body (3), a second tower body (5) and a third tower body (6) are sequentially arranged above the opening part (2) from bottom to top, wherein the first tower body (3), the second tower body (5) and the third tower body (6) are coaxially arranged with the opening part (2), the first tower body (3), the second tower body (5) and the third tower body (6) are fixedly communicated end to end, the lower end of the first tower body (3) is fixedly connected with the upper end of the opening part (2) through a lower flange (11), the upper end of the first tower body (3) is fixedly connected with the lower end of the second tower body (5) through a middle flange (10), the upper end of the second tower body (5) is fixedly connected with the lower end of the third tower body (6) through an upper flange (9), an opening at the upper end of the third tower body (6) is arranged in a sealing way, and a steam outlet (7) is arranged at the upper part of the third tower body (6); the inside of first tower body (3) and second tower body (5) all is provided with pall ring packing layer (4), and the inside of third tower body (6) is provided with shell and tube heat exchanger (8).
2. The vertical evaporation column of claim 1, wherein: the tower diameter of the first tower body (3) is larger than the inner diameter of the opening part (2).
3. The vertical evaporation column of claim 1, wherein: the tower diameter of the first tower body (3) is equal to that of the second tower body (5).
4. The vertical evaporation column of claim 3, wherein: the tower diameter of the first tower body (3) is equal to that of the third tower body (6).
5. The vertical evaporation column of claim 1, wherein: the distance between the opening part (2) and the steam outlet (7) is more than 4 m.
6. The vertical evaporation column of claim 1, wherein: the water vapor outlet (7) is connected with a condenser through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921379674.1U CN210613662U (en) | 2019-08-23 | 2019-08-23 | Vertical evaporation column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921379674.1U CN210613662U (en) | 2019-08-23 | 2019-08-23 | Vertical evaporation column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210613662U true CN210613662U (en) | 2020-05-26 |
Family
ID=70750624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921379674.1U Active CN210613662U (en) | 2019-08-23 | 2019-08-23 | Vertical evaporation column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210613662U (en) |
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2019
- 2019-08-23 CN CN201921379674.1U patent/CN210613662U/en active Active
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