CN219579929U - Dewatering device of concentration tower for styrene and propylene oxide co-production - Google Patents
Dewatering device of concentration tower for styrene and propylene oxide co-production Download PDFInfo
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- CN219579929U CN219579929U CN202320687731.2U CN202320687731U CN219579929U CN 219579929 U CN219579929 U CN 219579929U CN 202320687731 U CN202320687731 U CN 202320687731U CN 219579929 U CN219579929 U CN 219579929U
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- oil
- water
- pipeline
- concentration tower
- styrene
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model provides a dehydration device of a styrene co-production epoxypropane concentration tower, which comprises an oil-water separation tank, wherein a baffle is arranged in the oil-water separation tank, a water accumulation bag is arranged on the right side of the baffle at the bottom of the oil-water separation tank, the water accumulation bag is connected with an oil-water buffer tank through an oil-water pipeline, the oil-water buffer tank is connected with a feeding end of an oil-water output pump through a feeding pipeline, a discharging end of the oil-water output pump is connected with a discharging pipeline, and the discharging pipeline is connected with an oil-water separation alkaline washing tank. The utility model can dehydrate the oil-water mixture generated by the concentration tower of the styrene co-production epoxypropane device, so that the oil can be reused, the cost is reduced, and the influence caused by mixing water-containing oil in the concentration tower can be avoided.
Description
Technical Field
The utility model relates to the technical field of dehydration of a concentration tower, in particular to a dehydration device of a styrene co-production epoxypropane concentration tower.
Background
In a reflux tank at the top of a concentrating tower of an oxidation unit of the styrene co-production propylene oxide device, circulating ethylbenzene and water cannot be removed in a concentrating system, and the circulating ethylbenzene and water remain in the tower all the time, so that the problems of tower pressure exceeding, tower temperature superelevation and the like can be caused, and oil-water separation is carried out without a water accumulation bag; the catalyst is not easy to remove in ethylbenzene, and can cause great influence on the catalyst in the epoxidation section, so that the production cost is increased, and the normal operation of the device is influenced.
Disclosure of Invention
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model provides a styrene coproduction propylene oxide concentration tower dewatering device, includes the oil-water separation jar, the inside baffle that is equipped with of oil-water separation jar, oil-water separation jar bottom baffle right side is equipped with ponding package, ponding package passes through the oil water pipeline and connects the oil water buffer tank, the oil water buffer tank passes through the feed end of feed line connection oil water output pump, oil water output pump discharge end connection discharge pipeline, discharge pipeline connection oil water separation alkaline wash pond;
and a gas phase pipeline I is connected between the top of the oil-water buffer tank and the oil-water separation tank.
The left side of the baffle at the bottom of the oil-water separation tank is connected with an oil return pipeline which is connected with the concentration tower through an oil pump.
The top of the oil-water separation tank is connected with a gas-phase pipeline II, and a vacuum pump is arranged on the gas-phase pipeline II.
As a preferable scheme, a return line is connected between the oil-water output pump and the oil-water buffer tank.
Preferably, the oil-water pipeline is provided with a first regulating valve.
As an optimal scheme, a second regulating valve is arranged on the discharging pipeline.
Compared with the prior art, the utility model has the beneficial effects that: the utility model can dehydrate the oil-water mixture generated by the concentration tower of the styrene co-production epoxypropane device, so that the oil can be reused, the cost is reduced, and the influence caused by mixing water-containing oil in the concentration tower can be avoided.
Drawings
The utility model is described in further detail below with reference to the attached drawings and detailed description:
fig. 1 is a schematic view of the connection structure of the present utility model.
Detailed Description
The utility model is described in further detail below with reference to the attached drawings and detailed description:
the utility model provides a styrene coproduction propylene oxide concentration tower dewatering device, includes oil water separating jar 1, the inside baffle 2 that is equipped with of oil water separating jar 1, oil water separating jar 1 bottom baffle right side is equipped with ponding package 3, ponding package 3 passes through oil water pipeline 4 and connects oil water buffer tank 5, oil water buffer tank 5 passes through the feed end that feed line 6 connects oil water output pump 7, discharge pipeline 8 is connected to oil water output pump 7 discharge end, discharge pipeline 8 connects oil water separation alkaline wash pond 9.
An air phase pipeline I10 is connected between the top of the oil-water buffer tank 5 and the oil-water separation tank 1.
The left side of the baffle at the bottom of the oil-water separation tank 1 is connected with an oil return pipeline 11, and the oil return pipeline 11 is connected with a concentration tower 13 through an oil pump 12.
The top of the oil-water separation tank 1 is connected with a gas-phase pipeline II 14, and a vacuum pump 15 is arranged on the gas-phase pipeline II 14. The gas phase in the oil-water separation tank 1 is discharged through a gas phase pipeline II 14 when the pressure in the tank is high.
Further, a return line 16 is connected between the oil-water output pump 7 and the oil-water buffer tank 5, and the return line can prevent the outlet of the oil-water output pump 7 from being blocked.
Further, the oil-water pipeline 4 is provided with a first regulating valve 17.
Further, a second regulating valve 18 is arranged on the discharging pipeline 8.
The system of the concentration tower of the styrene co-production epoxypropane device is connected with an oil-water separation tank 1, oil floats on an oil-water mixture in the oil-water separation tank 1, the height of a baffle plate 2 is adjusted to enable the oil to flow into the left side of the baffle plate 2, the oil-water mixture flows into the right side of the baffle plate 2, the oil-water mixture is accumulated in a water accumulation bag 3, when the boundary position of the water accumulation bag 3 is too high, a regulating valve I17 is opened, the oil-water mixture flows into an oil-water buffer tank 5 and is pumped into an oil-water separation alkaline washing tank 9 by an oil-water output pump 7, alkali liquor is added into the oil-water separation alkaline washing tank 9, so that oil-water separation is carried out, and separated oil enters the concentration tower 13 for continuous use.
The oil flowing into the left side of the baffle plate 2 is pumped into the concentration tower 13 through the oil pump 12 for reuse.
The above detailed description of the embodiments of the present utility model has been given by way of example only, and the present utility model is not limited to the above described embodiments, and equivalent modifications are also within the scope of the present utility model.
Claims (4)
1. The utility model provides a styrene coproduction propylene oxide concentrator dewatering device, its characterized in that includes oil-water separation jar (1), oil-water separation jar (1) inside is equipped with baffle (2), oil-water separation jar (1) bottom baffle right side is equipped with ponding package (3), ponding package (3) are connected oil-water buffer tank (5) through oil-water pipeline (4), oil-water buffer tank (5) are connected the feed end of oil-water output pump (7) through feed line (6), discharge pipeline (8) are connected to oil-water output pump (7) discharge end, discharge pipeline (8) are connected oil-water separation alkaline wash pond (9);
a gas phase pipeline I (10) is connected between the top of the oil-water buffer tank (5) and the oil-water separation tank (1);
the left side of a baffle at the bottom of the oil-water separation tank (1) is connected with an oil return pipeline (11), and the oil return pipeline (11) is connected with a concentration tower (13) through an oil pump (12);
the top of the oil-water separation tank (1) is connected with a gas-phase pipeline II (14), and a vacuum pump (15) is arranged on the gas-phase pipeline II (14).
2. The dehydration device of the styrene co-production propylene oxide concentration tower according to claim 1, wherein a return line (16) is connected between the oil-water output pump (7) and the oil-water buffer tank (5).
3. The dehydration device of a styrene co-production propylene oxide concentration tower according to claim 1, wherein the oil-water pipeline (4) is provided with a first regulating valve (17).
4. The dehydration device of a styrene co-production propylene oxide concentration tower according to claim 1, wherein the oil-water pipeline (4) is provided with a first regulating valve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320687731.2U CN219579929U (en) | 2023-03-31 | 2023-03-31 | Dewatering device of concentration tower for styrene and propylene oxide co-production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320687731.2U CN219579929U (en) | 2023-03-31 | 2023-03-31 | Dewatering device of concentration tower for styrene and propylene oxide co-production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219579929U true CN219579929U (en) | 2023-08-25 |
Family
ID=87692848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320687731.2U Active CN219579929U (en) | 2023-03-31 | 2023-03-31 | Dewatering device of concentration tower for styrene and propylene oxide co-production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219579929U (en) |
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2023
- 2023-03-31 CN CN202320687731.2U patent/CN219579929U/en active Active
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