CN204918428U - Cyclohexanol dehydrogenation device vacuum system - Google Patents
Cyclohexanol dehydrogenation device vacuum system Download PDFInfo
- Publication number
- CN204918428U CN204918428U CN201520538457.8U CN201520538457U CN204918428U CN 204918428 U CN204918428 U CN 204918428U CN 201520538457 U CN201520538457 U CN 201520538457U CN 204918428 U CN204918428 U CN 204918428U
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- CN
- China
- Prior art keywords
- tower
- vacuum pump
- pipeline
- dehydrogenation device
- cyclohexanol dehydrogenation
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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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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility mode relates to a cyclohexanol dehydrogenation device vacuum system of system cyclohexanone has solved current cyclohexanol dehydrogenation device vacuum system because unreasonable pressure unstability, oil phase loss and the higher problem of energy consumption of existing of structure. Cyclohexanol dehydrogenation device vacuum system including primary distillation tower, ketone tower, pure tower, still includes torch pipeline and water sealed tank pipeline, and the top of primary distillation tower, ketone tower, pure tower all is provided with the liquid ring vacuum pump who is connected with the three, is provided with the vacuum pump lime set jar that feeds through with both between liquid ring vacuum pump and the water sealed tank pipeline, and is provided with the vacuum pump heat exchanger that feeds through with both between vacuum pump lime set jar and the torch pipeline. The utility model has the advantages of reasonable design reliably, reduce the quantity of gas of taking out from the top of the tower effectively, reduced the steam consumption to reduce the manufacturing cost of every ton of cyclohexanol, reduced the emission of waste gas moreover, be favorable to energy saving and emission reduction, had the advantage that the vacuum is stable, the water bad news are low and reduce the steam consumption.
Description
Technical field
The utility model relates to Chemical Manufacture vacuum system, is specially a kind of cyclohexanol dehydrogenation device vacuum system of preparing cyclohexanone.
Background technology
In preparing cyclohexanone by cyclohexanol dehydrogenation method, each distillation tower is negative pressure tower, comprise: primary tower, ketone tower, alcohol tower, vacuum ejector is relied on to maintain the negative pressure of tower top, a gas part of extracting out enters process gas pipe network for Equilibrium vacuum injector rate of air sucked in required, remaining gas is after condensation, and non-condensable gas enters torch, and phlegma enters water sealed tank.
In preparing cyclohexanone by cyclohexanol dehydrogenation method process, alcohol ketone refined unit is negative pressure tower, and vacuum ejector easily causes tower internal pressure unstable and oil phase loss is more, and increase steam consumption quantity, energy consumption is higher.
Summary of the invention
There is pressure transient, oil phase loss and the higher problem of energy consumption in order to solve existing cyclohexanol dehydrogenation device vacuum system due to unreasonable structure in the utility model, provides a kind of cyclohexanol dehydrogenation device vacuum system.
The utility model adopts following technical scheme to realize: cyclohexanol dehydrogenation device vacuum system, comprise primary tower, ketone tower, alcohol tower, also comprise torch pipeline and water sealed tank pipeline, the top of primary tower, ketone tower, alcohol tower is provided with the liquid-ring vacuum pump be connected with three, be provided with the vacuum pump lime set tank be communicated with both between liquid-ring vacuum pump with water sealed tank pipeline, and vacuum pump lime set tank be provided with the vacuum pump interchanger be communicated with both between torch pipeline.
Liquid-ring vacuum pump is a kind of black vacuum pump, its obtainable highest attainable vacuum is 2000-4000Pa, form unit vacuum tightness with vacuum pump and can reach 1-600Pa, by the top of primary tower, ketone tower, alcohol tower is incorporated to vacuum pump by pipeline, thus control the vacuum tightness of each tower, the gas of liquid-ring vacuum pump is after condensation, non-condensable gas enters torch pipeline, phlegma enters water sealed tank pipeline, overcomes existing cyclohexanol dehydrogenation device vacuum system due to unreasonable structure and there is pressure transient, oil phase loss and the higher problem of energy consumption.
The utility model reasonable in design is reliable, significantly reduce the gas volume extracted out from tower top, reduce steam consumption, thus reduce the production cost of hexalin per ton, and decrease the discharge of waste gas, be conducive to energy-saving and emission-reduction, there is the advantage that vacuum is stablized, water consumption is low and reduce steam consumption.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-primary tower, 2-ketone tower, 3-alcohol tower, 4-torch pipeline, 5-water sealed tank pipeline, 6-liquid-ring vacuum pump, 7-vacuum pump lime set tank, 8-vacuum pump interchanger.
Embodiment
Cyclohexanol dehydrogenation device vacuum system, comprise primary tower 1, ketone tower 2, alcohol tower 3, also comprise torch pipeline 4 and water sealed tank pipeline 5, the top of primary tower 1, ketone tower 2, alcohol tower 3 is provided with the liquid-ring vacuum pump 6 be connected with three, be provided with the vacuum pump lime set tank 7 be communicated with both between liquid-ring vacuum pump 6 with water sealed tank pipeline 5, and vacuum pump lime set tank 7 be provided with the vacuum pump interchanger 8 be communicated with both between torch pipeline 4.
Claims (1)
1. a cyclohexanol dehydrogenation device vacuum system, comprise primary tower (1), ketone tower (2), alcohol tower (3), it is characterized in that: also comprise torch pipeline (4) and water sealed tank pipeline (5), the top of primary tower (1), ketone tower (2), alcohol tower (3) is provided with the liquid-ring vacuum pump (6) be connected with three, be provided with the vacuum pump lime set tank (7) be communicated with both between liquid-ring vacuum pump (6) with water sealed tank pipeline (5), and between vacuum pump lime set tank (7) with torch pipeline (4), be provided with the vacuum pump interchanger (8) be communicated with both.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538457.8U CN204918428U (en) | 2015-07-23 | 2015-07-23 | Cyclohexanol dehydrogenation device vacuum system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538457.8U CN204918428U (en) | 2015-07-23 | 2015-07-23 | Cyclohexanol dehydrogenation device vacuum system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204918428U true CN204918428U (en) | 2015-12-30 |
Family
ID=54967575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520538457.8U Active CN204918428U (en) | 2015-07-23 | 2015-07-23 | Cyclohexanol dehydrogenation device vacuum system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204918428U (en) |
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2015
- 2015-07-23 CN CN201520538457.8U patent/CN204918428U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210115 Granted publication date: 20151230 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210118 Granted publication date: 20151230 |
|
| PD01 | Discharge of preservation of patent |